Commit | Line | Data |
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1da177e4 LT |
1 | /******************************************************************************* |
2 | ||
0abb6eb1 AK |
3 | Intel PRO/1000 Linux driver |
4 | Copyright(c) 1999 - 2006 Intel Corporation. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
1da177e4 | 13 | more details. |
0abb6eb1 | 14 | |
1da177e4 | 15 | You should have received a copy of the GNU General Public License along with |
0abb6eb1 AK |
16 | this program; if not, write to the Free Software Foundation, Inc., |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
1da177e4 LT |
22 | Contact Information: |
23 | Linux NICS <linux.nics@intel.com> | |
3d41e30a | 24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
1da177e4 LT |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | /* e1000_hw.c | |
30 | * Shared functions for accessing and configuring the MAC | |
31 | */ | |
32 | ||
8fc897b0 | 33 | |
1da177e4 LT |
34 | #include "e1000_hw.h" |
35 | ||
35574764 NN |
36 | static int32_t e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask); |
37 | static void e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask); | |
38 | static int32_t e1000_read_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t *data); | |
39 | static int32_t e1000_write_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t data); | |
40 | static int32_t e1000_get_software_semaphore(struct e1000_hw *hw); | |
41 | static void e1000_release_software_semaphore(struct e1000_hw *hw); | |
42 | ||
43 | static uint8_t e1000_arc_subsystem_valid(struct e1000_hw *hw); | |
44 | static int32_t e1000_check_downshift(struct e1000_hw *hw); | |
45 | static int32_t e1000_check_polarity(struct e1000_hw *hw, e1000_rev_polarity *polarity); | |
46 | static void e1000_clear_hw_cntrs(struct e1000_hw *hw); | |
47 | static void e1000_clear_vfta(struct e1000_hw *hw); | |
48 | static int32_t e1000_commit_shadow_ram(struct e1000_hw *hw); | |
49 | static int32_t e1000_config_dsp_after_link_change(struct e1000_hw *hw, boolean_t link_up); | |
50 | static int32_t e1000_config_fc_after_link_up(struct e1000_hw *hw); | |
51 | static int32_t e1000_detect_gig_phy(struct e1000_hw *hw); | |
52 | static int32_t e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t bank); | |
53 | static int32_t e1000_get_auto_rd_done(struct e1000_hw *hw); | |
54 | static int32_t e1000_get_cable_length(struct e1000_hw *hw, uint16_t *min_length, uint16_t *max_length); | |
55 | static int32_t e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw); | |
56 | static int32_t e1000_get_phy_cfg_done(struct e1000_hw *hw); | |
57 | static int32_t e1000_get_software_flag(struct e1000_hw *hw); | |
58 | static int32_t e1000_ich8_cycle_init(struct e1000_hw *hw); | |
59 | static int32_t e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout); | |
60 | static int32_t e1000_id_led_init(struct e1000_hw *hw); | |
61 | static int32_t e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, uint32_t cnf_base_addr, uint32_t cnf_size); | |
62 | static int32_t e1000_init_lcd_from_nvm(struct e1000_hw *hw); | |
63 | static void e1000_init_rx_addrs(struct e1000_hw *hw); | |
09ae3e88 | 64 | static void e1000_initialize_hardware_bits(struct e1000_hw *hw); |
35574764 NN |
65 | static boolean_t e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw); |
66 | static int32_t e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); | |
67 | static int32_t e1000_mng_enable_host_if(struct e1000_hw *hw); | |
68 | static int32_t e1000_mng_host_if_write(struct e1000_hw *hw, uint8_t *buffer, uint16_t length, uint16_t offset, uint8_t *sum); | |
69 | static int32_t e1000_mng_write_cmd_header(struct e1000_hw* hw, struct e1000_host_mng_command_header* hdr); | |
70 | static int32_t e1000_mng_write_commit(struct e1000_hw *hw); | |
71 | static int32_t e1000_phy_ife_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); | |
72 | static int32_t e1000_phy_igp_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); | |
73 | static int32_t e1000_read_eeprom_eerd(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data); | |
74 | static int32_t e1000_write_eeprom_eewr(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data); | |
75 | static int32_t e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd); | |
76 | static int32_t e1000_phy_m88_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); | |
77 | static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw); | |
78 | static int32_t e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t *data); | |
79 | static int32_t e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte); | |
80 | static int32_t e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte); | |
81 | static int32_t e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data); | |
82 | static int32_t e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, uint16_t *data); | |
83 | static int32_t e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, uint16_t data); | |
84 | static int32_t e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data); | |
85 | static int32_t e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data); | |
86 | static void e1000_release_software_flag(struct e1000_hw *hw); | |
87 | static int32_t e1000_set_d3_lplu_state(struct e1000_hw *hw, boolean_t active); | |
88 | static int32_t e1000_set_d0_lplu_state(struct e1000_hw *hw, boolean_t active); | |
89 | static int32_t e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop); | |
90 | static void e1000_set_pci_express_master_disable(struct e1000_hw *hw); | |
91 | static int32_t e1000_wait_autoneg(struct e1000_hw *hw); | |
92 | static void e1000_write_reg_io(struct e1000_hw *hw, uint32_t offset, uint32_t value); | |
1da177e4 LT |
93 | static int32_t e1000_set_phy_type(struct e1000_hw *hw); |
94 | static void e1000_phy_init_script(struct e1000_hw *hw); | |
95 | static int32_t e1000_setup_copper_link(struct e1000_hw *hw); | |
96 | static int32_t e1000_setup_fiber_serdes_link(struct e1000_hw *hw); | |
97 | static int32_t e1000_adjust_serdes_amplitude(struct e1000_hw *hw); | |
98 | static int32_t e1000_phy_force_speed_duplex(struct e1000_hw *hw); | |
99 | static int32_t e1000_config_mac_to_phy(struct e1000_hw *hw); | |
100 | static void e1000_raise_mdi_clk(struct e1000_hw *hw, uint32_t *ctrl); | |
101 | static void e1000_lower_mdi_clk(struct e1000_hw *hw, uint32_t *ctrl); | |
102 | static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, uint32_t data, | |
103 | uint16_t count); | |
104 | static uint16_t e1000_shift_in_mdi_bits(struct e1000_hw *hw); | |
105 | static int32_t e1000_phy_reset_dsp(struct e1000_hw *hw); | |
106 | static int32_t e1000_write_eeprom_spi(struct e1000_hw *hw, uint16_t offset, | |
107 | uint16_t words, uint16_t *data); | |
108 | static int32_t e1000_write_eeprom_microwire(struct e1000_hw *hw, | |
109 | uint16_t offset, uint16_t words, | |
110 | uint16_t *data); | |
111 | static int32_t e1000_spi_eeprom_ready(struct e1000_hw *hw); | |
112 | static void e1000_raise_ee_clk(struct e1000_hw *hw, uint32_t *eecd); | |
113 | static void e1000_lower_ee_clk(struct e1000_hw *hw, uint32_t *eecd); | |
114 | static void e1000_shift_out_ee_bits(struct e1000_hw *hw, uint16_t data, | |
115 | uint16_t count); | |
116 | static int32_t e1000_write_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr, | |
117 | uint16_t phy_data); | |
118 | static int32_t e1000_read_phy_reg_ex(struct e1000_hw *hw,uint32_t reg_addr, | |
119 | uint16_t *phy_data); | |
120 | static uint16_t e1000_shift_in_ee_bits(struct e1000_hw *hw, uint16_t count); | |
121 | static int32_t e1000_acquire_eeprom(struct e1000_hw *hw); | |
122 | static void e1000_release_eeprom(struct e1000_hw *hw); | |
123 | static void e1000_standby_eeprom(struct e1000_hw *hw); | |
1da177e4 LT |
124 | static int32_t e1000_set_vco_speed(struct e1000_hw *hw); |
125 | static int32_t e1000_polarity_reversal_workaround(struct e1000_hw *hw); | |
126 | static int32_t e1000_set_phy_mode(struct e1000_hw *hw); | |
2d7edb92 MC |
127 | static int32_t e1000_host_if_read_cookie(struct e1000_hw *hw, uint8_t *buffer); |
128 | static uint8_t e1000_calculate_mng_checksum(char *buffer, uint32_t length); | |
cd94dd0b AK |
129 | static int32_t e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, |
130 | uint16_t duplex); | |
6418ecc6 | 131 | static int32_t e1000_configure_kmrn_for_1000(struct e1000_hw *hw); |
1da177e4 LT |
132 | |
133 | /* IGP cable length table */ | |
134 | static const | |
135 | uint16_t e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = | |
136 | { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
137 | 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, | |
138 | 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, | |
139 | 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, | |
140 | 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, | |
141 | 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, | |
142 | 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, | |
143 | 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120}; | |
144 | ||
2d7edb92 MC |
145 | static const |
146 | uint16_t e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] = | |
868d5309 MC |
147 | { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21, |
148 | 0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, | |
149 | 6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, | |
150 | 21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82, | |
151 | 40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, | |
152 | 60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, | |
153 | 83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124, | |
154 | 104, 109, 114, 118, 121, 124}; | |
2d7edb92 | 155 | |
1da177e4 LT |
156 | /****************************************************************************** |
157 | * Set the phy type member in the hw struct. | |
158 | * | |
159 | * hw - Struct containing variables accessed by shared code | |
160 | *****************************************************************************/ | |
35574764 | 161 | static int32_t |
1da177e4 LT |
162 | e1000_set_phy_type(struct e1000_hw *hw) |
163 | { | |
164 | DEBUGFUNC("e1000_set_phy_type"); | |
165 | ||
8fc897b0 | 166 | if (hw->mac_type == e1000_undefined) |
2d7edb92 MC |
167 | return -E1000_ERR_PHY_TYPE; |
168 | ||
8fc897b0 | 169 | switch (hw->phy_id) { |
1da177e4 LT |
170 | case M88E1000_E_PHY_ID: |
171 | case M88E1000_I_PHY_ID: | |
172 | case M88E1011_I_PHY_ID: | |
2d7edb92 | 173 | case M88E1111_I_PHY_ID: |
1da177e4 LT |
174 | hw->phy_type = e1000_phy_m88; |
175 | break; | |
176 | case IGP01E1000_I_PHY_ID: | |
8fc897b0 AK |
177 | if (hw->mac_type == e1000_82541 || |
178 | hw->mac_type == e1000_82541_rev_2 || | |
179 | hw->mac_type == e1000_82547 || | |
180 | hw->mac_type == e1000_82547_rev_2) { | |
1da177e4 LT |
181 | hw->phy_type = e1000_phy_igp; |
182 | break; | |
183 | } | |
cd94dd0b AK |
184 | case IGP03E1000_E_PHY_ID: |
185 | hw->phy_type = e1000_phy_igp_3; | |
186 | break; | |
187 | case IFE_E_PHY_ID: | |
188 | case IFE_PLUS_E_PHY_ID: | |
189 | case IFE_C_E_PHY_ID: | |
190 | hw->phy_type = e1000_phy_ife; | |
191 | break; | |
6418ecc6 JK |
192 | case GG82563_E_PHY_ID: |
193 | if (hw->mac_type == e1000_80003es2lan) { | |
194 | hw->phy_type = e1000_phy_gg82563; | |
195 | break; | |
196 | } | |
1da177e4 LT |
197 | /* Fall Through */ |
198 | default: | |
199 | /* Should never have loaded on this device */ | |
200 | hw->phy_type = e1000_phy_undefined; | |
201 | return -E1000_ERR_PHY_TYPE; | |
202 | } | |
203 | ||
204 | return E1000_SUCCESS; | |
205 | } | |
206 | ||
207 | /****************************************************************************** | |
208 | * IGP phy init script - initializes the GbE PHY | |
209 | * | |
210 | * hw - Struct containing variables accessed by shared code | |
211 | *****************************************************************************/ | |
212 | static void | |
213 | e1000_phy_init_script(struct e1000_hw *hw) | |
214 | { | |
215 | uint32_t ret_val; | |
216 | uint16_t phy_saved_data; | |
217 | ||
218 | DEBUGFUNC("e1000_phy_init_script"); | |
219 | ||
8fc897b0 | 220 | if (hw->phy_init_script) { |
f8ec4733 | 221 | msleep(20); |
1da177e4 LT |
222 | |
223 | /* Save off the current value of register 0x2F5B to be restored at | |
224 | * the end of this routine. */ | |
225 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
226 | ||
227 | /* Disabled the PHY transmitter */ | |
228 | e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
229 | ||
f8ec4733 | 230 | msleep(20); |
1da177e4 LT |
231 | |
232 | e1000_write_phy_reg(hw,0x0000,0x0140); | |
233 | ||
f8ec4733 | 234 | msleep(5); |
1da177e4 | 235 | |
8fc897b0 | 236 | switch (hw->mac_type) { |
1da177e4 LT |
237 | case e1000_82541: |
238 | case e1000_82547: | |
239 | e1000_write_phy_reg(hw, 0x1F95, 0x0001); | |
240 | ||
241 | e1000_write_phy_reg(hw, 0x1F71, 0xBD21); | |
242 | ||
243 | e1000_write_phy_reg(hw, 0x1F79, 0x0018); | |
244 | ||
245 | e1000_write_phy_reg(hw, 0x1F30, 0x1600); | |
246 | ||
247 | e1000_write_phy_reg(hw, 0x1F31, 0x0014); | |
248 | ||
249 | e1000_write_phy_reg(hw, 0x1F32, 0x161C); | |
250 | ||
251 | e1000_write_phy_reg(hw, 0x1F94, 0x0003); | |
252 | ||
253 | e1000_write_phy_reg(hw, 0x1F96, 0x003F); | |
254 | ||
255 | e1000_write_phy_reg(hw, 0x2010, 0x0008); | |
256 | break; | |
257 | ||
258 | case e1000_82541_rev_2: | |
259 | case e1000_82547_rev_2: | |
260 | e1000_write_phy_reg(hw, 0x1F73, 0x0099); | |
261 | break; | |
262 | default: | |
263 | break; | |
264 | } | |
265 | ||
266 | e1000_write_phy_reg(hw, 0x0000, 0x3300); | |
267 | ||
f8ec4733 | 268 | msleep(20); |
1da177e4 LT |
269 | |
270 | /* Now enable the transmitter */ | |
271 | e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
272 | ||
8fc897b0 | 273 | if (hw->mac_type == e1000_82547) { |
1da177e4 LT |
274 | uint16_t fused, fine, coarse; |
275 | ||
276 | /* Move to analog registers page */ | |
277 | e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused); | |
278 | ||
8fc897b0 | 279 | if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { |
1da177e4 LT |
280 | e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused); |
281 | ||
282 | fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; | |
283 | coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; | |
284 | ||
8fc897b0 | 285 | if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { |
1da177e4 LT |
286 | coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10; |
287 | fine -= IGP01E1000_ANALOG_FUSE_FINE_1; | |
8fc897b0 | 288 | } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH) |
1da177e4 LT |
289 | fine -= IGP01E1000_ANALOG_FUSE_FINE_10; |
290 | ||
291 | fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | | |
292 | (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | | |
293 | (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK); | |
294 | ||
295 | e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused); | |
296 | e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS, | |
297 | IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); | |
298 | } | |
299 | } | |
300 | } | |
301 | } | |
302 | ||
303 | /****************************************************************************** | |
304 | * Set the mac type member in the hw struct. | |
305 | * | |
306 | * hw - Struct containing variables accessed by shared code | |
307 | *****************************************************************************/ | |
308 | int32_t | |
309 | e1000_set_mac_type(struct e1000_hw *hw) | |
310 | { | |
bd2371eb JG |
311 | DEBUGFUNC("e1000_set_mac_type"); |
312 | ||
313 | switch (hw->device_id) { | |
314 | case E1000_DEV_ID_82542: | |
315 | switch (hw->revision_id) { | |
316 | case E1000_82542_2_0_REV_ID: | |
317 | hw->mac_type = e1000_82542_rev2_0; | |
318 | break; | |
319 | case E1000_82542_2_1_REV_ID: | |
320 | hw->mac_type = e1000_82542_rev2_1; | |
321 | break; | |
322 | default: | |
323 | /* Invalid 82542 revision ID */ | |
324 | return -E1000_ERR_MAC_TYPE; | |
325 | } | |
326 | break; | |
327 | case E1000_DEV_ID_82543GC_FIBER: | |
328 | case E1000_DEV_ID_82543GC_COPPER: | |
329 | hw->mac_type = e1000_82543; | |
330 | break; | |
331 | case E1000_DEV_ID_82544EI_COPPER: | |
332 | case E1000_DEV_ID_82544EI_FIBER: | |
333 | case E1000_DEV_ID_82544GC_COPPER: | |
334 | case E1000_DEV_ID_82544GC_LOM: | |
335 | hw->mac_type = e1000_82544; | |
336 | break; | |
337 | case E1000_DEV_ID_82540EM: | |
338 | case E1000_DEV_ID_82540EM_LOM: | |
339 | case E1000_DEV_ID_82540EP: | |
340 | case E1000_DEV_ID_82540EP_LOM: | |
341 | case E1000_DEV_ID_82540EP_LP: | |
342 | hw->mac_type = e1000_82540; | |
343 | break; | |
344 | case E1000_DEV_ID_82545EM_COPPER: | |
345 | case E1000_DEV_ID_82545EM_FIBER: | |
346 | hw->mac_type = e1000_82545; | |
347 | break; | |
348 | case E1000_DEV_ID_82545GM_COPPER: | |
349 | case E1000_DEV_ID_82545GM_FIBER: | |
350 | case E1000_DEV_ID_82545GM_SERDES: | |
351 | hw->mac_type = e1000_82545_rev_3; | |
352 | break; | |
353 | case E1000_DEV_ID_82546EB_COPPER: | |
354 | case E1000_DEV_ID_82546EB_FIBER: | |
355 | case E1000_DEV_ID_82546EB_QUAD_COPPER: | |
356 | hw->mac_type = e1000_82546; | |
357 | break; | |
358 | case E1000_DEV_ID_82546GB_COPPER: | |
359 | case E1000_DEV_ID_82546GB_FIBER: | |
360 | case E1000_DEV_ID_82546GB_SERDES: | |
361 | case E1000_DEV_ID_82546GB_PCIE: | |
362 | case E1000_DEV_ID_82546GB_QUAD_COPPER: | |
363 | case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: | |
364 | hw->mac_type = e1000_82546_rev_3; | |
365 | break; | |
366 | case E1000_DEV_ID_82541EI: | |
367 | case E1000_DEV_ID_82541EI_MOBILE: | |
368 | case E1000_DEV_ID_82541ER_LOM: | |
369 | hw->mac_type = e1000_82541; | |
370 | break; | |
371 | case E1000_DEV_ID_82541ER: | |
372 | case E1000_DEV_ID_82541GI: | |
373 | case E1000_DEV_ID_82541GI_LF: | |
374 | case E1000_DEV_ID_82541GI_MOBILE: | |
375 | hw->mac_type = e1000_82541_rev_2; | |
376 | break; | |
377 | case E1000_DEV_ID_82547EI: | |
378 | case E1000_DEV_ID_82547EI_MOBILE: | |
379 | hw->mac_type = e1000_82547; | |
380 | break; | |
381 | case E1000_DEV_ID_82547GI: | |
382 | hw->mac_type = e1000_82547_rev_2; | |
383 | break; | |
384 | case E1000_DEV_ID_82571EB_COPPER: | |
385 | case E1000_DEV_ID_82571EB_FIBER: | |
386 | case E1000_DEV_ID_82571EB_SERDES: | |
387 | case E1000_DEV_ID_82571EB_QUAD_COPPER: | |
388 | case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: | |
389 | hw->mac_type = e1000_82571; | |
390 | break; | |
391 | case E1000_DEV_ID_82572EI_COPPER: | |
392 | case E1000_DEV_ID_82572EI_FIBER: | |
393 | case E1000_DEV_ID_82572EI_SERDES: | |
394 | case E1000_DEV_ID_82572EI: | |
395 | hw->mac_type = e1000_82572; | |
396 | break; | |
397 | case E1000_DEV_ID_82573E: | |
398 | case E1000_DEV_ID_82573E_IAMT: | |
399 | case E1000_DEV_ID_82573L: | |
400 | hw->mac_type = e1000_82573; | |
401 | break; | |
402 | case E1000_DEV_ID_80003ES2LAN_COPPER_SPT: | |
403 | case E1000_DEV_ID_80003ES2LAN_SERDES_SPT: | |
404 | case E1000_DEV_ID_80003ES2LAN_COPPER_DPT: | |
405 | case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: | |
406 | hw->mac_type = e1000_80003es2lan; | |
407 | break; | |
408 | case E1000_DEV_ID_ICH8_IGP_M_AMT: | |
409 | case E1000_DEV_ID_ICH8_IGP_AMT: | |
410 | case E1000_DEV_ID_ICH8_IGP_C: | |
411 | case E1000_DEV_ID_ICH8_IFE: | |
412 | case E1000_DEV_ID_ICH8_IFE_GT: | |
413 | case E1000_DEV_ID_ICH8_IFE_G: | |
414 | case E1000_DEV_ID_ICH8_IGP_M: | |
415 | hw->mac_type = e1000_ich8lan; | |
416 | break; | |
417 | default: | |
418 | /* Should never have loaded on this device */ | |
419 | return -E1000_ERR_MAC_TYPE; | |
420 | } | |
421 | ||
422 | switch (hw->mac_type) { | |
423 | case e1000_ich8lan: | |
424 | hw->swfwhw_semaphore_present = TRUE; | |
425 | hw->asf_firmware_present = TRUE; | |
426 | break; | |
427 | case e1000_80003es2lan: | |
428 | hw->swfw_sync_present = TRUE; | |
429 | /* fall through */ | |
430 | case e1000_82571: | |
431 | case e1000_82572: | |
432 | case e1000_82573: | |
433 | hw->eeprom_semaphore_present = TRUE; | |
434 | /* fall through */ | |
435 | case e1000_82541: | |
436 | case e1000_82547: | |
437 | case e1000_82541_rev_2: | |
438 | case e1000_82547_rev_2: | |
439 | hw->asf_firmware_present = TRUE; | |
440 | break; | |
441 | default: | |
442 | break; | |
443 | } | |
444 | ||
167fb284 JG |
445 | /* The 82543 chip does not count tx_carrier_errors properly in |
446 | * FD mode | |
447 | */ | |
448 | if (hw->mac_type == e1000_82543) | |
449 | hw->bad_tx_carr_stats_fd = TRUE; | |
450 | ||
bd2371eb | 451 | return E1000_SUCCESS; |
1da177e4 LT |
452 | } |
453 | ||
454 | /***************************************************************************** | |
455 | * Set media type and TBI compatibility. | |
456 | * | |
457 | * hw - Struct containing variables accessed by shared code | |
458 | * **************************************************************************/ | |
459 | void | |
460 | e1000_set_media_type(struct e1000_hw *hw) | |
461 | { | |
462 | uint32_t status; | |
463 | ||
464 | DEBUGFUNC("e1000_set_media_type"); | |
465 | ||
8fc897b0 | 466 | if (hw->mac_type != e1000_82543) { |
1da177e4 LT |
467 | /* tbi_compatibility is only valid on 82543 */ |
468 | hw->tbi_compatibility_en = FALSE; | |
469 | } | |
470 | ||
471 | switch (hw->device_id) { | |
472 | case E1000_DEV_ID_82545GM_SERDES: | |
473 | case E1000_DEV_ID_82546GB_SERDES: | |
868d5309 MC |
474 | case E1000_DEV_ID_82571EB_SERDES: |
475 | case E1000_DEV_ID_82572EI_SERDES: | |
6418ecc6 | 476 | case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: |
1da177e4 LT |
477 | hw->media_type = e1000_media_type_internal_serdes; |
478 | break; | |
479 | default: | |
3893d547 MC |
480 | switch (hw->mac_type) { |
481 | case e1000_82542_rev2_0: | |
482 | case e1000_82542_rev2_1: | |
483 | hw->media_type = e1000_media_type_fiber; | |
484 | break; | |
cd94dd0b | 485 | case e1000_ich8lan: |
3893d547 MC |
486 | case e1000_82573: |
487 | /* The STATUS_TBIMODE bit is reserved or reused for the this | |
488 | * device. | |
489 | */ | |
490 | hw->media_type = e1000_media_type_copper; | |
491 | break; | |
492 | default: | |
1da177e4 | 493 | status = E1000_READ_REG(hw, STATUS); |
3893d547 | 494 | if (status & E1000_STATUS_TBIMODE) { |
1da177e4 LT |
495 | hw->media_type = e1000_media_type_fiber; |
496 | /* tbi_compatibility not valid on fiber */ | |
497 | hw->tbi_compatibility_en = FALSE; | |
498 | } else { | |
499 | hw->media_type = e1000_media_type_copper; | |
500 | } | |
3893d547 | 501 | break; |
1da177e4 LT |
502 | } |
503 | } | |
504 | } | |
505 | ||
506 | /****************************************************************************** | |
507 | * Reset the transmit and receive units; mask and clear all interrupts. | |
508 | * | |
509 | * hw - Struct containing variables accessed by shared code | |
510 | *****************************************************************************/ | |
511 | int32_t | |
512 | e1000_reset_hw(struct e1000_hw *hw) | |
513 | { | |
514 | uint32_t ctrl; | |
515 | uint32_t ctrl_ext; | |
516 | uint32_t icr; | |
517 | uint32_t manc; | |
518 | uint32_t led_ctrl; | |
2d7edb92 MC |
519 | uint32_t timeout; |
520 | uint32_t extcnf_ctrl; | |
521 | int32_t ret_val; | |
1da177e4 LT |
522 | |
523 | DEBUGFUNC("e1000_reset_hw"); | |
524 | ||
525 | /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ | |
8fc897b0 | 526 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
527 | DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); |
528 | e1000_pci_clear_mwi(hw); | |
529 | } | |
530 | ||
8fc897b0 | 531 | if (hw->bus_type == e1000_bus_type_pci_express) { |
2d7edb92 MC |
532 | /* Prevent the PCI-E bus from sticking if there is no TLP connection |
533 | * on the last TLP read/write transaction when MAC is reset. | |
534 | */ | |
8fc897b0 | 535 | if (e1000_disable_pciex_master(hw) != E1000_SUCCESS) { |
2d7edb92 MC |
536 | DEBUGOUT("PCI-E Master disable polling has failed.\n"); |
537 | } | |
538 | } | |
539 | ||
1da177e4 LT |
540 | /* Clear interrupt mask to stop board from generating interrupts */ |
541 | DEBUGOUT("Masking off all interrupts\n"); | |
542 | E1000_WRITE_REG(hw, IMC, 0xffffffff); | |
543 | ||
544 | /* Disable the Transmit and Receive units. Then delay to allow | |
545 | * any pending transactions to complete before we hit the MAC with | |
546 | * the global reset. | |
547 | */ | |
548 | E1000_WRITE_REG(hw, RCTL, 0); | |
549 | E1000_WRITE_REG(hw, TCTL, E1000_TCTL_PSP); | |
550 | E1000_WRITE_FLUSH(hw); | |
551 | ||
552 | /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ | |
553 | hw->tbi_compatibility_on = FALSE; | |
554 | ||
555 | /* Delay to allow any outstanding PCI transactions to complete before | |
556 | * resetting the device | |
557 | */ | |
f8ec4733 | 558 | msleep(10); |
1da177e4 LT |
559 | |
560 | ctrl = E1000_READ_REG(hw, CTRL); | |
561 | ||
562 | /* Must reset the PHY before resetting the MAC */ | |
8fc897b0 | 563 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
2d7edb92 | 564 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_PHY_RST)); |
f8ec4733 | 565 | msleep(5); |
1da177e4 LT |
566 | } |
567 | ||
2d7edb92 MC |
568 | /* Must acquire the MDIO ownership before MAC reset. |
569 | * Ownership defaults to firmware after a reset. */ | |
8fc897b0 | 570 | if (hw->mac_type == e1000_82573) { |
2d7edb92 MC |
571 | timeout = 10; |
572 | ||
573 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
574 | extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; | |
575 | ||
576 | do { | |
577 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
578 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
579 | ||
8fc897b0 | 580 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) |
2d7edb92 MC |
581 | break; |
582 | else | |
583 | extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; | |
584 | ||
f8ec4733 | 585 | msleep(2); |
2d7edb92 | 586 | timeout--; |
8fc897b0 | 587 | } while (timeout); |
2d7edb92 MC |
588 | } |
589 | ||
cd94dd0b AK |
590 | /* Workaround for ICH8 bit corruption issue in FIFO memory */ |
591 | if (hw->mac_type == e1000_ich8lan) { | |
592 | /* Set Tx and Rx buffer allocation to 8k apiece. */ | |
593 | E1000_WRITE_REG(hw, PBA, E1000_PBA_8K); | |
594 | /* Set Packet Buffer Size to 16k. */ | |
595 | E1000_WRITE_REG(hw, PBS, E1000_PBS_16K); | |
596 | } | |
597 | ||
1da177e4 LT |
598 | /* Issue a global reset to the MAC. This will reset the chip's |
599 | * transmit, receive, DMA, and link units. It will not effect | |
600 | * the current PCI configuration. The global reset bit is self- | |
601 | * clearing, and should clear within a microsecond. | |
602 | */ | |
603 | DEBUGOUT("Issuing a global reset to MAC\n"); | |
604 | ||
8fc897b0 | 605 | switch (hw->mac_type) { |
1da177e4 LT |
606 | case e1000_82544: |
607 | case e1000_82540: | |
608 | case e1000_82545: | |
609 | case e1000_82546: | |
610 | case e1000_82541: | |
611 | case e1000_82541_rev_2: | |
612 | /* These controllers can't ack the 64-bit write when issuing the | |
613 | * reset, so use IO-mapping as a workaround to issue the reset */ | |
614 | E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
615 | break; | |
616 | case e1000_82545_rev_3: | |
617 | case e1000_82546_rev_3: | |
618 | /* Reset is performed on a shadow of the control register */ | |
619 | E1000_WRITE_REG(hw, CTRL_DUP, (ctrl | E1000_CTRL_RST)); | |
620 | break; | |
cd94dd0b AK |
621 | case e1000_ich8lan: |
622 | if (!hw->phy_reset_disable && | |
623 | e1000_check_phy_reset_block(hw) == E1000_SUCCESS) { | |
624 | /* e1000_ich8lan PHY HW reset requires MAC CORE reset | |
625 | * at the same time to make sure the interface between | |
626 | * MAC and the external PHY is reset. | |
627 | */ | |
628 | ctrl |= E1000_CTRL_PHY_RST; | |
629 | } | |
630 | ||
631 | e1000_get_software_flag(hw); | |
632 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
f8ec4733 | 633 | msleep(5); |
cd94dd0b | 634 | break; |
1da177e4 LT |
635 | default: |
636 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
637 | break; | |
638 | } | |
639 | ||
640 | /* After MAC reset, force reload of EEPROM to restore power-on settings to | |
641 | * device. Later controllers reload the EEPROM automatically, so just wait | |
642 | * for reload to complete. | |
643 | */ | |
8fc897b0 | 644 | switch (hw->mac_type) { |
1da177e4 LT |
645 | case e1000_82542_rev2_0: |
646 | case e1000_82542_rev2_1: | |
647 | case e1000_82543: | |
648 | case e1000_82544: | |
649 | /* Wait for reset to complete */ | |
650 | udelay(10); | |
651 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
652 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
653 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
654 | E1000_WRITE_FLUSH(hw); | |
655 | /* Wait for EEPROM reload */ | |
f8ec4733 | 656 | msleep(2); |
1da177e4 LT |
657 | break; |
658 | case e1000_82541: | |
659 | case e1000_82541_rev_2: | |
660 | case e1000_82547: | |
661 | case e1000_82547_rev_2: | |
662 | /* Wait for EEPROM reload */ | |
f8ec4733 | 663 | msleep(20); |
1da177e4 | 664 | break; |
2d7edb92 | 665 | case e1000_82573: |
fd803241 JK |
666 | if (e1000_is_onboard_nvm_eeprom(hw) == FALSE) { |
667 | udelay(10); | |
668 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
669 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
670 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
671 | E1000_WRITE_FLUSH(hw); | |
672 | } | |
2d7edb92 | 673 | /* fall through */ |
2a88c173 JK |
674 | default: |
675 | /* Auto read done will delay 5ms or poll based on mac type */ | |
2d7edb92 | 676 | ret_val = e1000_get_auto_rd_done(hw); |
8fc897b0 | 677 | if (ret_val) |
2d7edb92 MC |
678 | return ret_val; |
679 | break; | |
1da177e4 LT |
680 | } |
681 | ||
682 | /* Disable HW ARPs on ASF enabled adapters */ | |
8fc897b0 | 683 | if (hw->mac_type >= e1000_82540 && hw->mac_type <= e1000_82547_rev_2) { |
1da177e4 LT |
684 | manc = E1000_READ_REG(hw, MANC); |
685 | manc &= ~(E1000_MANC_ARP_EN); | |
686 | E1000_WRITE_REG(hw, MANC, manc); | |
687 | } | |
688 | ||
8fc897b0 | 689 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1da177e4 LT |
690 | e1000_phy_init_script(hw); |
691 | ||
692 | /* Configure activity LED after PHY reset */ | |
693 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
694 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
695 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
696 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
697 | } | |
698 | ||
699 | /* Clear interrupt mask to stop board from generating interrupts */ | |
700 | DEBUGOUT("Masking off all interrupts\n"); | |
701 | E1000_WRITE_REG(hw, IMC, 0xffffffff); | |
702 | ||
703 | /* Clear any pending interrupt events. */ | |
704 | icr = E1000_READ_REG(hw, ICR); | |
705 | ||
706 | /* If MWI was previously enabled, reenable it. */ | |
8fc897b0 | 707 | if (hw->mac_type == e1000_82542_rev2_0) { |
f8ec4733 | 708 | if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) |
1da177e4 LT |
709 | e1000_pci_set_mwi(hw); |
710 | } | |
711 | ||
cd94dd0b AK |
712 | if (hw->mac_type == e1000_ich8lan) { |
713 | uint32_t kab = E1000_READ_REG(hw, KABGTXD); | |
714 | kab |= E1000_KABGTXD_BGSQLBIAS; | |
715 | E1000_WRITE_REG(hw, KABGTXD, kab); | |
716 | } | |
717 | ||
1da177e4 LT |
718 | return E1000_SUCCESS; |
719 | } | |
720 | ||
09ae3e88 JK |
721 | /****************************************************************************** |
722 | * | |
723 | * Initialize a number of hardware-dependent bits | |
724 | * | |
725 | * hw: Struct containing variables accessed by shared code | |
726 | * | |
727 | * This function contains hardware limitation workarounds for PCI-E adapters | |
728 | * | |
729 | *****************************************************************************/ | |
730 | static void | |
731 | e1000_initialize_hardware_bits(struct e1000_hw *hw) | |
732 | { | |
733 | if ((hw->mac_type >= e1000_82571) && (!hw->initialize_hw_bits_disable)) { | |
734 | /* Settings common to all PCI-express silicon */ | |
735 | uint32_t reg_ctrl, reg_ctrl_ext; | |
736 | uint32_t reg_tarc0, reg_tarc1; | |
737 | uint32_t reg_tctl; | |
738 | uint32_t reg_txdctl, reg_txdctl1; | |
739 | ||
740 | /* link autonegotiation/sync workarounds */ | |
741 | reg_tarc0 = E1000_READ_REG(hw, TARC0); | |
742 | reg_tarc0 &= ~((1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)); | |
743 | ||
744 | /* Enable not-done TX descriptor counting */ | |
745 | reg_txdctl = E1000_READ_REG(hw, TXDCTL); | |
746 | reg_txdctl |= E1000_TXDCTL_COUNT_DESC; | |
747 | E1000_WRITE_REG(hw, TXDCTL, reg_txdctl); | |
748 | reg_txdctl1 = E1000_READ_REG(hw, TXDCTL1); | |
749 | reg_txdctl1 |= E1000_TXDCTL_COUNT_DESC; | |
750 | E1000_WRITE_REG(hw, TXDCTL1, reg_txdctl1); | |
751 | ||
752 | switch (hw->mac_type) { | |
753 | case e1000_82571: | |
754 | case e1000_82572: | |
755 | /* Clear PHY TX compatible mode bits */ | |
756 | reg_tarc1 = E1000_READ_REG(hw, TARC1); | |
757 | reg_tarc1 &= ~((1 << 30)|(1 << 29)); | |
758 | ||
759 | /* link autonegotiation/sync workarounds */ | |
760 | reg_tarc0 |= ((1 << 26)|(1 << 25)|(1 << 24)|(1 << 23)); | |
761 | ||
762 | /* TX ring control fixes */ | |
763 | reg_tarc1 |= ((1 << 26)|(1 << 25)|(1 << 24)); | |
764 | ||
765 | /* Multiple read bit is reversed polarity */ | |
766 | reg_tctl = E1000_READ_REG(hw, TCTL); | |
767 | if (reg_tctl & E1000_TCTL_MULR) | |
768 | reg_tarc1 &= ~(1 << 28); | |
769 | else | |
770 | reg_tarc1 |= (1 << 28); | |
771 | ||
772 | E1000_WRITE_REG(hw, TARC1, reg_tarc1); | |
773 | break; | |
774 | case e1000_82573: | |
775 | reg_ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
776 | reg_ctrl_ext &= ~(1 << 23); | |
777 | reg_ctrl_ext |= (1 << 22); | |
778 | ||
779 | /* TX byte count fix */ | |
780 | reg_ctrl = E1000_READ_REG(hw, CTRL); | |
781 | reg_ctrl &= ~(1 << 29); | |
782 | ||
783 | E1000_WRITE_REG(hw, CTRL_EXT, reg_ctrl_ext); | |
784 | E1000_WRITE_REG(hw, CTRL, reg_ctrl); | |
785 | break; | |
786 | case e1000_80003es2lan: | |
787 | /* improve small packet performace for fiber/serdes */ | |
788 | if ((hw->media_type == e1000_media_type_fiber) || | |
789 | (hw->media_type == e1000_media_type_internal_serdes)) { | |
790 | reg_tarc0 &= ~(1 << 20); | |
791 | } | |
792 | ||
793 | /* Multiple read bit is reversed polarity */ | |
794 | reg_tctl = E1000_READ_REG(hw, TCTL); | |
795 | reg_tarc1 = E1000_READ_REG(hw, TARC1); | |
796 | if (reg_tctl & E1000_TCTL_MULR) | |
797 | reg_tarc1 &= ~(1 << 28); | |
798 | else | |
799 | reg_tarc1 |= (1 << 28); | |
800 | ||
801 | E1000_WRITE_REG(hw, TARC1, reg_tarc1); | |
802 | break; | |
803 | case e1000_ich8lan: | |
804 | /* Reduce concurrent DMA requests to 3 from 4 */ | |
805 | if ((hw->revision_id < 3) || | |
806 | ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && | |
807 | (hw->device_id != E1000_DEV_ID_ICH8_IGP_M))) | |
808 | reg_tarc0 |= ((1 << 29)|(1 << 28)); | |
809 | ||
810 | reg_ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
811 | reg_ctrl_ext |= (1 << 22); | |
812 | E1000_WRITE_REG(hw, CTRL_EXT, reg_ctrl_ext); | |
813 | ||
814 | /* workaround TX hang with TSO=on */ | |
815 | reg_tarc0 |= ((1 << 27)|(1 << 26)|(1 << 24)|(1 << 23)); | |
816 | ||
817 | /* Multiple read bit is reversed polarity */ | |
818 | reg_tctl = E1000_READ_REG(hw, TCTL); | |
819 | reg_tarc1 = E1000_READ_REG(hw, TARC1); | |
820 | if (reg_tctl & E1000_TCTL_MULR) | |
821 | reg_tarc1 &= ~(1 << 28); | |
822 | else | |
823 | reg_tarc1 |= (1 << 28); | |
824 | ||
825 | /* workaround TX hang with TSO=on */ | |
826 | reg_tarc1 |= ((1 << 30)|(1 << 26)|(1 << 24)); | |
827 | ||
828 | E1000_WRITE_REG(hw, TARC1, reg_tarc1); | |
829 | break; | |
830 | default: | |
831 | break; | |
832 | } | |
833 | ||
834 | E1000_WRITE_REG(hw, TARC0, reg_tarc0); | |
835 | } | |
836 | } | |
837 | ||
1da177e4 LT |
838 | /****************************************************************************** |
839 | * Performs basic configuration of the adapter. | |
840 | * | |
841 | * hw - Struct containing variables accessed by shared code | |
842 | * | |
843 | * Assumes that the controller has previously been reset and is in a | |
844 | * post-reset uninitialized state. Initializes the receive address registers, | |
845 | * multicast table, and VLAN filter table. Calls routines to setup link | |
846 | * configuration and flow control settings. Clears all on-chip counters. Leaves | |
847 | * the transmit and receive units disabled and uninitialized. | |
848 | *****************************************************************************/ | |
849 | int32_t | |
850 | e1000_init_hw(struct e1000_hw *hw) | |
851 | { | |
852 | uint32_t ctrl; | |
853 | uint32_t i; | |
854 | int32_t ret_val; | |
855 | uint16_t pcix_cmd_word; | |
856 | uint16_t pcix_stat_hi_word; | |
857 | uint16_t cmd_mmrbc; | |
858 | uint16_t stat_mmrbc; | |
2d7edb92 | 859 | uint32_t mta_size; |
6418ecc6 | 860 | uint32_t reg_data; |
b7ee49db | 861 | uint32_t ctrl_ext; |
2d7edb92 | 862 | |
1da177e4 LT |
863 | DEBUGFUNC("e1000_init_hw"); |
864 | ||
7820d428 | 865 | /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */ |
09ae3e88 JK |
866 | if ((hw->mac_type == e1000_ich8lan) && |
867 | ((hw->revision_id < 3) || | |
868 | ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && | |
869 | (hw->device_id != E1000_DEV_ID_ICH8_IGP_M)))) { | |
870 | reg_data = E1000_READ_REG(hw, STATUS); | |
871 | reg_data &= ~0x80000000; | |
872 | E1000_WRITE_REG(hw, STATUS, reg_data); | |
7820d428 JK |
873 | } |
874 | ||
1da177e4 LT |
875 | /* Initialize Identification LED */ |
876 | ret_val = e1000_id_led_init(hw); | |
8fc897b0 | 877 | if (ret_val) { |
1da177e4 LT |
878 | DEBUGOUT("Error Initializing Identification LED\n"); |
879 | return ret_val; | |
880 | } | |
881 | ||
882 | /* Set the media type and TBI compatibility */ | |
883 | e1000_set_media_type(hw); | |
884 | ||
09ae3e88 JK |
885 | /* Must be called after e1000_set_media_type because media_type is used */ |
886 | e1000_initialize_hardware_bits(hw); | |
887 | ||
1da177e4 LT |
888 | /* Disabling VLAN filtering. */ |
889 | DEBUGOUT("Initializing the IEEE VLAN\n"); | |
cd94dd0b AK |
890 | /* VET hardcoded to standard value and VFTA removed in ICH8 LAN */ |
891 | if (hw->mac_type != e1000_ich8lan) { | |
892 | if (hw->mac_type < e1000_82545_rev_3) | |
893 | E1000_WRITE_REG(hw, VET, 0); | |
894 | e1000_clear_vfta(hw); | |
895 | } | |
1da177e4 LT |
896 | |
897 | /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ | |
8fc897b0 | 898 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
899 | DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); |
900 | e1000_pci_clear_mwi(hw); | |
901 | E1000_WRITE_REG(hw, RCTL, E1000_RCTL_RST); | |
902 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 | 903 | msleep(5); |
1da177e4 LT |
904 | } |
905 | ||
906 | /* Setup the receive address. This involves initializing all of the Receive | |
907 | * Address Registers (RARs 0 - 15). | |
908 | */ | |
909 | e1000_init_rx_addrs(hw); | |
910 | ||
911 | /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ | |
8fc897b0 | 912 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
913 | E1000_WRITE_REG(hw, RCTL, 0); |
914 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 JG |
915 | msleep(1); |
916 | if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) | |
1da177e4 LT |
917 | e1000_pci_set_mwi(hw); |
918 | } | |
919 | ||
920 | /* Zero out the Multicast HASH table */ | |
921 | DEBUGOUT("Zeroing the MTA\n"); | |
2d7edb92 | 922 | mta_size = E1000_MC_TBL_SIZE; |
cd94dd0b AK |
923 | if (hw->mac_type == e1000_ich8lan) |
924 | mta_size = E1000_MC_TBL_SIZE_ICH8LAN; | |
8fc897b0 | 925 | for (i = 0; i < mta_size; i++) { |
1da177e4 | 926 | E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); |
4ca213a6 AK |
927 | /* use write flush to prevent Memory Write Block (MWB) from |
928 | * occuring when accessing our register space */ | |
929 | E1000_WRITE_FLUSH(hw); | |
930 | } | |
1da177e4 LT |
931 | |
932 | /* Set the PCI priority bit correctly in the CTRL register. This | |
933 | * determines if the adapter gives priority to receives, or if it | |
2d7edb92 MC |
934 | * gives equal priority to transmits and receives. Valid only on |
935 | * 82542 and 82543 silicon. | |
1da177e4 | 936 | */ |
8fc897b0 | 937 | if (hw->dma_fairness && hw->mac_type <= e1000_82543) { |
1da177e4 LT |
938 | ctrl = E1000_READ_REG(hw, CTRL); |
939 | E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PRIOR); | |
940 | } | |
941 | ||
8fc897b0 | 942 | switch (hw->mac_type) { |
1da177e4 LT |
943 | case e1000_82545_rev_3: |
944 | case e1000_82546_rev_3: | |
945 | break; | |
946 | default: | |
947 | /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ | |
8fc897b0 | 948 | if (hw->bus_type == e1000_bus_type_pcix) { |
1da177e4 LT |
949 | e1000_read_pci_cfg(hw, PCIX_COMMAND_REGISTER, &pcix_cmd_word); |
950 | e1000_read_pci_cfg(hw, PCIX_STATUS_REGISTER_HI, | |
951 | &pcix_stat_hi_word); | |
952 | cmd_mmrbc = (pcix_cmd_word & PCIX_COMMAND_MMRBC_MASK) >> | |
953 | PCIX_COMMAND_MMRBC_SHIFT; | |
954 | stat_mmrbc = (pcix_stat_hi_word & PCIX_STATUS_HI_MMRBC_MASK) >> | |
955 | PCIX_STATUS_HI_MMRBC_SHIFT; | |
8fc897b0 | 956 | if (stat_mmrbc == PCIX_STATUS_HI_MMRBC_4K) |
1da177e4 | 957 | stat_mmrbc = PCIX_STATUS_HI_MMRBC_2K; |
8fc897b0 | 958 | if (cmd_mmrbc > stat_mmrbc) { |
1da177e4 LT |
959 | pcix_cmd_word &= ~PCIX_COMMAND_MMRBC_MASK; |
960 | pcix_cmd_word |= stat_mmrbc << PCIX_COMMAND_MMRBC_SHIFT; | |
961 | e1000_write_pci_cfg(hw, PCIX_COMMAND_REGISTER, | |
962 | &pcix_cmd_word); | |
963 | } | |
964 | } | |
965 | break; | |
966 | } | |
967 | ||
cd94dd0b AK |
968 | /* More time needed for PHY to initialize */ |
969 | if (hw->mac_type == e1000_ich8lan) | |
f8ec4733 | 970 | msleep(15); |
cd94dd0b | 971 | |
1da177e4 LT |
972 | /* Call a subroutine to configure the link and setup flow control. */ |
973 | ret_val = e1000_setup_link(hw); | |
974 | ||
975 | /* Set the transmit descriptor write-back policy */ | |
8fc897b0 | 976 | if (hw->mac_type > e1000_82544) { |
1da177e4 LT |
977 | ctrl = E1000_READ_REG(hw, TXDCTL); |
978 | ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; | |
979 | E1000_WRITE_REG(hw, TXDCTL, ctrl); | |
980 | } | |
981 | ||
2d7edb92 | 982 | if (hw->mac_type == e1000_82573) { |
76c224bc | 983 | e1000_enable_tx_pkt_filtering(hw); |
2d7edb92 MC |
984 | } |
985 | ||
868d5309 MC |
986 | switch (hw->mac_type) { |
987 | default: | |
988 | break; | |
6418ecc6 JK |
989 | case e1000_80003es2lan: |
990 | /* Enable retransmit on late collisions */ | |
991 | reg_data = E1000_READ_REG(hw, TCTL); | |
992 | reg_data |= E1000_TCTL_RTLC; | |
993 | E1000_WRITE_REG(hw, TCTL, reg_data); | |
994 | ||
995 | /* Configure Gigabit Carry Extend Padding */ | |
996 | reg_data = E1000_READ_REG(hw, TCTL_EXT); | |
997 | reg_data &= ~E1000_TCTL_EXT_GCEX_MASK; | |
998 | reg_data |= DEFAULT_80003ES2LAN_TCTL_EXT_GCEX; | |
999 | E1000_WRITE_REG(hw, TCTL_EXT, reg_data); | |
1000 | ||
1001 | /* Configure Transmit Inter-Packet Gap */ | |
1002 | reg_data = E1000_READ_REG(hw, TIPG); | |
1003 | reg_data &= ~E1000_TIPG_IPGT_MASK; | |
1004 | reg_data |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; | |
1005 | E1000_WRITE_REG(hw, TIPG, reg_data); | |
1006 | ||
1007 | reg_data = E1000_READ_REG_ARRAY(hw, FFLT, 0x0001); | |
1008 | reg_data &= ~0x00100000; | |
1009 | E1000_WRITE_REG_ARRAY(hw, FFLT, 0x0001, reg_data); | |
1010 | /* Fall through */ | |
868d5309 | 1011 | case e1000_82571: |
a7990ba6 | 1012 | case e1000_82572: |
cd94dd0b | 1013 | case e1000_ich8lan: |
868d5309 | 1014 | ctrl = E1000_READ_REG(hw, TXDCTL1); |
6418ecc6 | 1015 | ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; |
868d5309 MC |
1016 | E1000_WRITE_REG(hw, TXDCTL1, ctrl); |
1017 | break; | |
1018 | } | |
1019 | ||
1020 | ||
868d5309 MC |
1021 | if (hw->mac_type == e1000_82573) { |
1022 | uint32_t gcr = E1000_READ_REG(hw, GCR); | |
1023 | gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX; | |
1024 | E1000_WRITE_REG(hw, GCR, gcr); | |
1025 | } | |
2d7edb92 | 1026 | |
1da177e4 LT |
1027 | /* Clear all of the statistics registers (clear on read). It is |
1028 | * important that we do this after we have tried to establish link | |
1029 | * because the symbol error count will increment wildly if there | |
1030 | * is no link. | |
1031 | */ | |
1032 | e1000_clear_hw_cntrs(hw); | |
1033 | ||
cd94dd0b AK |
1034 | /* ICH8 No-snoop bits are opposite polarity. |
1035 | * Set to snoop by default after reset. */ | |
1036 | if (hw->mac_type == e1000_ich8lan) | |
1037 | e1000_set_pci_ex_no_snoop(hw, PCI_EX_82566_SNOOP_ALL); | |
1038 | ||
b7ee49db JK |
1039 | if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || |
1040 | hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { | |
1041 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
1042 | /* Relaxed ordering must be disabled to avoid a parity | |
1043 | * error crash in a PCI slot. */ | |
1044 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
1045 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
1046 | } | |
1047 | ||
1da177e4 LT |
1048 | return ret_val; |
1049 | } | |
1050 | ||
1051 | /****************************************************************************** | |
1052 | * Adjust SERDES output amplitude based on EEPROM setting. | |
1053 | * | |
1054 | * hw - Struct containing variables accessed by shared code. | |
1055 | *****************************************************************************/ | |
1056 | static int32_t | |
1057 | e1000_adjust_serdes_amplitude(struct e1000_hw *hw) | |
1058 | { | |
1059 | uint16_t eeprom_data; | |
1060 | int32_t ret_val; | |
1061 | ||
1062 | DEBUGFUNC("e1000_adjust_serdes_amplitude"); | |
1063 | ||
8fc897b0 | 1064 | if (hw->media_type != e1000_media_type_internal_serdes) |
1da177e4 LT |
1065 | return E1000_SUCCESS; |
1066 | ||
8fc897b0 | 1067 | switch (hw->mac_type) { |
1da177e4 LT |
1068 | case e1000_82545_rev_3: |
1069 | case e1000_82546_rev_3: | |
1070 | break; | |
1071 | default: | |
1072 | return E1000_SUCCESS; | |
1073 | } | |
1074 | ||
1075 | ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, &eeprom_data); | |
1076 | if (ret_val) { | |
1077 | return ret_val; | |
1078 | } | |
1079 | ||
8fc897b0 | 1080 | if (eeprom_data != EEPROM_RESERVED_WORD) { |
1da177e4 | 1081 | /* Adjust SERDES output amplitude only. */ |
76c224bc | 1082 | eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; |
1da177e4 | 1083 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); |
8fc897b0 | 1084 | if (ret_val) |
1da177e4 LT |
1085 | return ret_val; |
1086 | } | |
1087 | ||
1088 | return E1000_SUCCESS; | |
1089 | } | |
1090 | ||
1091 | /****************************************************************************** | |
1092 | * Configures flow control and link settings. | |
1093 | * | |
1094 | * hw - Struct containing variables accessed by shared code | |
1095 | * | |
1096 | * Determines which flow control settings to use. Calls the apropriate media- | |
1097 | * specific link configuration function. Configures the flow control settings. | |
1098 | * Assuming the adapter has a valid link partner, a valid link should be | |
1099 | * established. Assumes the hardware has previously been reset and the | |
1100 | * transmitter and receiver are not enabled. | |
1101 | *****************************************************************************/ | |
1102 | int32_t | |
1103 | e1000_setup_link(struct e1000_hw *hw) | |
1104 | { | |
1105 | uint32_t ctrl_ext; | |
1106 | int32_t ret_val; | |
1107 | uint16_t eeprom_data; | |
1108 | ||
1109 | DEBUGFUNC("e1000_setup_link"); | |
1110 | ||
526f9957 JK |
1111 | /* In the case of the phy reset being blocked, we already have a link. |
1112 | * We do not have to set it up again. */ | |
1113 | if (e1000_check_phy_reset_block(hw)) | |
1114 | return E1000_SUCCESS; | |
1115 | ||
1da177e4 LT |
1116 | /* Read and store word 0x0F of the EEPROM. This word contains bits |
1117 | * that determine the hardware's default PAUSE (flow control) mode, | |
1118 | * a bit that determines whether the HW defaults to enabling or | |
1119 | * disabling auto-negotiation, and the direction of the | |
1120 | * SW defined pins. If there is no SW over-ride of the flow | |
1121 | * control setting, then the variable hw->fc will | |
1122 | * be initialized based on a value in the EEPROM. | |
1123 | */ | |
11241b10 | 1124 | if (hw->fc == E1000_FC_DEFAULT) { |
fd803241 | 1125 | switch (hw->mac_type) { |
cd94dd0b | 1126 | case e1000_ich8lan: |
fd803241 | 1127 | case e1000_82573: |
11241b10 | 1128 | hw->fc = E1000_FC_FULL; |
fd803241 JK |
1129 | break; |
1130 | default: | |
1131 | ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, | |
1132 | 1, &eeprom_data); | |
1133 | if (ret_val) { | |
1134 | DEBUGOUT("EEPROM Read Error\n"); | |
1135 | return -E1000_ERR_EEPROM; | |
1136 | } | |
1137 | if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) | |
11241b10 | 1138 | hw->fc = E1000_FC_NONE; |
fd803241 JK |
1139 | else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == |
1140 | EEPROM_WORD0F_ASM_DIR) | |
11241b10 | 1141 | hw->fc = E1000_FC_TX_PAUSE; |
fd803241 | 1142 | else |
11241b10 | 1143 | hw->fc = E1000_FC_FULL; |
fd803241 JK |
1144 | break; |
1145 | } | |
1da177e4 LT |
1146 | } |
1147 | ||
1148 | /* We want to save off the original Flow Control configuration just | |
1149 | * in case we get disconnected and then reconnected into a different | |
1150 | * hub or switch with different Flow Control capabilities. | |
1151 | */ | |
8fc897b0 | 1152 | if (hw->mac_type == e1000_82542_rev2_0) |
11241b10 | 1153 | hw->fc &= (~E1000_FC_TX_PAUSE); |
1da177e4 | 1154 | |
8fc897b0 | 1155 | if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) |
11241b10 | 1156 | hw->fc &= (~E1000_FC_RX_PAUSE); |
1da177e4 LT |
1157 | |
1158 | hw->original_fc = hw->fc; | |
1159 | ||
1160 | DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); | |
1161 | ||
1162 | /* Take the 4 bits from EEPROM word 0x0F that determine the initial | |
1163 | * polarity value for the SW controlled pins, and setup the | |
1164 | * Extended Device Control reg with that info. | |
1165 | * This is needed because one of the SW controlled pins is used for | |
1166 | * signal detection. So this should be done before e1000_setup_pcs_link() | |
1167 | * or e1000_phy_setup() is called. | |
1168 | */ | |
497fce5e | 1169 | if (hw->mac_type == e1000_82543) { |
8fc897b0 AK |
1170 | ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, |
1171 | 1, &eeprom_data); | |
1172 | if (ret_val) { | |
1173 | DEBUGOUT("EEPROM Read Error\n"); | |
1174 | return -E1000_ERR_EEPROM; | |
1175 | } | |
1da177e4 LT |
1176 | ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << |
1177 | SWDPIO__EXT_SHIFT); | |
1178 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
1179 | } | |
1180 | ||
1181 | /* Call the necessary subroutine to configure the link. */ | |
1182 | ret_val = (hw->media_type == e1000_media_type_copper) ? | |
1183 | e1000_setup_copper_link(hw) : | |
1184 | e1000_setup_fiber_serdes_link(hw); | |
1185 | ||
1186 | /* Initialize the flow control address, type, and PAUSE timer | |
1187 | * registers to their default values. This is done even if flow | |
1188 | * control is disabled, because it does not hurt anything to | |
1189 | * initialize these registers. | |
1190 | */ | |
1191 | DEBUGOUT("Initializing the Flow Control address, type and timer regs\n"); | |
1192 | ||
cd94dd0b AK |
1193 | /* FCAL/H and FCT are hardcoded to standard values in e1000_ich8lan. */ |
1194 | if (hw->mac_type != e1000_ich8lan) { | |
1195 | E1000_WRITE_REG(hw, FCT, FLOW_CONTROL_TYPE); | |
1196 | E1000_WRITE_REG(hw, FCAH, FLOW_CONTROL_ADDRESS_HIGH); | |
1197 | E1000_WRITE_REG(hw, FCAL, FLOW_CONTROL_ADDRESS_LOW); | |
1198 | } | |
2d7edb92 | 1199 | |
1da177e4 LT |
1200 | E1000_WRITE_REG(hw, FCTTV, hw->fc_pause_time); |
1201 | ||
1202 | /* Set the flow control receive threshold registers. Normally, | |
1203 | * these registers will be set to a default threshold that may be | |
1204 | * adjusted later by the driver's runtime code. However, if the | |
1205 | * ability to transmit pause frames in not enabled, then these | |
1206 | * registers will be set to 0. | |
1207 | */ | |
11241b10 | 1208 | if (!(hw->fc & E1000_FC_TX_PAUSE)) { |
1da177e4 LT |
1209 | E1000_WRITE_REG(hw, FCRTL, 0); |
1210 | E1000_WRITE_REG(hw, FCRTH, 0); | |
1211 | } else { | |
1212 | /* We need to set up the Receive Threshold high and low water marks | |
1213 | * as well as (optionally) enabling the transmission of XON frames. | |
1214 | */ | |
8fc897b0 | 1215 | if (hw->fc_send_xon) { |
1da177e4 LT |
1216 | E1000_WRITE_REG(hw, FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); |
1217 | E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water); | |
1218 | } else { | |
1219 | E1000_WRITE_REG(hw, FCRTL, hw->fc_low_water); | |
1220 | E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water); | |
1221 | } | |
1222 | } | |
1223 | return ret_val; | |
1224 | } | |
1225 | ||
1226 | /****************************************************************************** | |
1227 | * Sets up link for a fiber based or serdes based adapter | |
1228 | * | |
1229 | * hw - Struct containing variables accessed by shared code | |
1230 | * | |
1231 | * Manipulates Physical Coding Sublayer functions in order to configure | |
1232 | * link. Assumes the hardware has been previously reset and the transmitter | |
1233 | * and receiver are not enabled. | |
1234 | *****************************************************************************/ | |
1235 | static int32_t | |
1236 | e1000_setup_fiber_serdes_link(struct e1000_hw *hw) | |
1237 | { | |
1238 | uint32_t ctrl; | |
1239 | uint32_t status; | |
1240 | uint32_t txcw = 0; | |
1241 | uint32_t i; | |
1242 | uint32_t signal = 0; | |
1243 | int32_t ret_val; | |
1244 | ||
1245 | DEBUGFUNC("e1000_setup_fiber_serdes_link"); | |
1246 | ||
868d5309 MC |
1247 | /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists |
1248 | * until explicitly turned off or a power cycle is performed. A read to | |
1249 | * the register does not indicate its status. Therefore, we ensure | |
1250 | * loopback mode is disabled during initialization. | |
1251 | */ | |
1252 | if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) | |
1253 | E1000_WRITE_REG(hw, SCTL, E1000_DISABLE_SERDES_LOOPBACK); | |
1254 | ||
09ae3e88 | 1255 | /* On adapters with a MAC newer than 82544, SWDP 1 will be |
1da177e4 LT |
1256 | * set when the optics detect a signal. On older adapters, it will be |
1257 | * cleared when there is a signal. This applies to fiber media only. | |
09ae3e88 JK |
1258 | * If we're on serdes media, adjust the output amplitude to value |
1259 | * set in the EEPROM. | |
1da177e4 LT |
1260 | */ |
1261 | ctrl = E1000_READ_REG(hw, CTRL); | |
8fc897b0 | 1262 | if (hw->media_type == e1000_media_type_fiber) |
1da177e4 LT |
1263 | signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; |
1264 | ||
1265 | ret_val = e1000_adjust_serdes_amplitude(hw); | |
8fc897b0 | 1266 | if (ret_val) |
1da177e4 LT |
1267 | return ret_val; |
1268 | ||
1269 | /* Take the link out of reset */ | |
1270 | ctrl &= ~(E1000_CTRL_LRST); | |
1271 | ||
1272 | /* Adjust VCO speed to improve BER performance */ | |
1273 | ret_val = e1000_set_vco_speed(hw); | |
8fc897b0 | 1274 | if (ret_val) |
1da177e4 LT |
1275 | return ret_val; |
1276 | ||
1277 | e1000_config_collision_dist(hw); | |
1278 | ||
1279 | /* Check for a software override of the flow control settings, and setup | |
1280 | * the device accordingly. If auto-negotiation is enabled, then software | |
1281 | * will have to set the "PAUSE" bits to the correct value in the Tranmsit | |
1282 | * Config Word Register (TXCW) and re-start auto-negotiation. However, if | |
1283 | * auto-negotiation is disabled, then software will have to manually | |
1284 | * configure the two flow control enable bits in the CTRL register. | |
1285 | * | |
1286 | * The possible values of the "fc" parameter are: | |
1287 | * 0: Flow control is completely disabled | |
1288 | * 1: Rx flow control is enabled (we can receive pause frames, but | |
1289 | * not send pause frames). | |
1290 | * 2: Tx flow control is enabled (we can send pause frames but we do | |
1291 | * not support receiving pause frames). | |
1292 | * 3: Both Rx and TX flow control (symmetric) are enabled. | |
1293 | */ | |
1294 | switch (hw->fc) { | |
11241b10 | 1295 | case E1000_FC_NONE: |
1da177e4 LT |
1296 | /* Flow control is completely disabled by a software over-ride. */ |
1297 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); | |
1298 | break; | |
11241b10 | 1299 | case E1000_FC_RX_PAUSE: |
1da177e4 LT |
1300 | /* RX Flow control is enabled and TX Flow control is disabled by a |
1301 | * software over-ride. Since there really isn't a way to advertise | |
1302 | * that we are capable of RX Pause ONLY, we will advertise that we | |
1303 | * support both symmetric and asymmetric RX PAUSE. Later, we will | |
1304 | * disable the adapter's ability to send PAUSE frames. | |
1305 | */ | |
1306 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); | |
1307 | break; | |
11241b10 | 1308 | case E1000_FC_TX_PAUSE: |
1da177e4 LT |
1309 | /* TX Flow control is enabled, and RX Flow control is disabled, by a |
1310 | * software over-ride. | |
1311 | */ | |
1312 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); | |
1313 | break; | |
11241b10 | 1314 | case E1000_FC_FULL: |
1da177e4 LT |
1315 | /* Flow control (both RX and TX) is enabled by a software over-ride. */ |
1316 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); | |
1317 | break; | |
1318 | default: | |
1319 | DEBUGOUT("Flow control param set incorrectly\n"); | |
1320 | return -E1000_ERR_CONFIG; | |
1321 | break; | |
1322 | } | |
1323 | ||
1324 | /* Since auto-negotiation is enabled, take the link out of reset (the link | |
1325 | * will be in reset, because we previously reset the chip). This will | |
1326 | * restart auto-negotiation. If auto-neogtiation is successful then the | |
1327 | * link-up status bit will be set and the flow control enable bits (RFCE | |
1328 | * and TFCE) will be set according to their negotiated value. | |
1329 | */ | |
1330 | DEBUGOUT("Auto-negotiation enabled\n"); | |
1331 | ||
1332 | E1000_WRITE_REG(hw, TXCW, txcw); | |
1333 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
1334 | E1000_WRITE_FLUSH(hw); | |
1335 | ||
1336 | hw->txcw = txcw; | |
f8ec4733 | 1337 | msleep(1); |
1da177e4 LT |
1338 | |
1339 | /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" | |
1340 | * indication in the Device Status Register. Time-out if a link isn't | |
1341 | * seen in 500 milliseconds seconds (Auto-negotiation should complete in | |
1342 | * less than 500 milliseconds even if the other end is doing it in SW). | |
1343 | * For internal serdes, we just assume a signal is present, then poll. | |
1344 | */ | |
8fc897b0 | 1345 | if (hw->media_type == e1000_media_type_internal_serdes || |
1da177e4 LT |
1346 | (E1000_READ_REG(hw, CTRL) & E1000_CTRL_SWDPIN1) == signal) { |
1347 | DEBUGOUT("Looking for Link\n"); | |
8fc897b0 | 1348 | for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { |
f8ec4733 | 1349 | msleep(10); |
1da177e4 | 1350 | status = E1000_READ_REG(hw, STATUS); |
8fc897b0 | 1351 | if (status & E1000_STATUS_LU) break; |
1da177e4 | 1352 | } |
8fc897b0 | 1353 | if (i == (LINK_UP_TIMEOUT / 10)) { |
1da177e4 LT |
1354 | DEBUGOUT("Never got a valid link from auto-neg!!!\n"); |
1355 | hw->autoneg_failed = 1; | |
1356 | /* AutoNeg failed to achieve a link, so we'll call | |
1357 | * e1000_check_for_link. This routine will force the link up if | |
1358 | * we detect a signal. This will allow us to communicate with | |
1359 | * non-autonegotiating link partners. | |
1360 | */ | |
1361 | ret_val = e1000_check_for_link(hw); | |
8fc897b0 | 1362 | if (ret_val) { |
1da177e4 LT |
1363 | DEBUGOUT("Error while checking for link\n"); |
1364 | return ret_val; | |
1365 | } | |
1366 | hw->autoneg_failed = 0; | |
1367 | } else { | |
1368 | hw->autoneg_failed = 0; | |
1369 | DEBUGOUT("Valid Link Found\n"); | |
1370 | } | |
1371 | } else { | |
1372 | DEBUGOUT("No Signal Detected\n"); | |
1373 | } | |
1374 | return E1000_SUCCESS; | |
1375 | } | |
1376 | ||
1377 | /****************************************************************************** | |
2d7edb92 | 1378 | * Make sure we have a valid PHY and change PHY mode before link setup. |
1da177e4 LT |
1379 | * |
1380 | * hw - Struct containing variables accessed by shared code | |
1381 | ******************************************************************************/ | |
1382 | static int32_t | |
2d7edb92 | 1383 | e1000_copper_link_preconfig(struct e1000_hw *hw) |
1da177e4 LT |
1384 | { |
1385 | uint32_t ctrl; | |
1da177e4 | 1386 | int32_t ret_val; |
1da177e4 LT |
1387 | uint16_t phy_data; |
1388 | ||
2d7edb92 | 1389 | DEBUGFUNC("e1000_copper_link_preconfig"); |
1da177e4 LT |
1390 | |
1391 | ctrl = E1000_READ_REG(hw, CTRL); | |
1392 | /* With 82543, we need to force speed and duplex on the MAC equal to what | |
1393 | * the PHY speed and duplex configuration is. In addition, we need to | |
1394 | * perform a hardware reset on the PHY to take it out of reset. | |
1395 | */ | |
8fc897b0 | 1396 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
1397 | ctrl |= E1000_CTRL_SLU; |
1398 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
1399 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
1400 | } else { | |
1401 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); | |
1402 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2d7edb92 | 1403 | ret_val = e1000_phy_hw_reset(hw); |
8fc897b0 | 1404 | if (ret_val) |
2d7edb92 | 1405 | return ret_val; |
1da177e4 LT |
1406 | } |
1407 | ||
1408 | /* Make sure we have a valid PHY */ | |
1409 | ret_val = e1000_detect_gig_phy(hw); | |
8fc897b0 | 1410 | if (ret_val) { |
1da177e4 LT |
1411 | DEBUGOUT("Error, did not detect valid phy.\n"); |
1412 | return ret_val; | |
1413 | } | |
1414 | DEBUGOUT1("Phy ID = %x \n", hw->phy_id); | |
1415 | ||
1416 | /* Set PHY to class A mode (if necessary) */ | |
1417 | ret_val = e1000_set_phy_mode(hw); | |
8fc897b0 | 1418 | if (ret_val) |
1da177e4 LT |
1419 | return ret_val; |
1420 | ||
8fc897b0 | 1421 | if ((hw->mac_type == e1000_82545_rev_3) || |
1da177e4 LT |
1422 | (hw->mac_type == e1000_82546_rev_3)) { |
1423 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
1424 | phy_data |= 0x00000008; | |
1425 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
1426 | } | |
1427 | ||
8fc897b0 AK |
1428 | if (hw->mac_type <= e1000_82543 || |
1429 | hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || | |
1430 | hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) | |
1da177e4 LT |
1431 | hw->phy_reset_disable = FALSE; |
1432 | ||
2d7edb92 MC |
1433 | return E1000_SUCCESS; |
1434 | } | |
1da177e4 | 1435 | |
1da177e4 | 1436 | |
2d7edb92 MC |
1437 | /******************************************************************** |
1438 | * Copper link setup for e1000_phy_igp series. | |
1439 | * | |
1440 | * hw - Struct containing variables accessed by shared code | |
1441 | *********************************************************************/ | |
1442 | static int32_t | |
1443 | e1000_copper_link_igp_setup(struct e1000_hw *hw) | |
1444 | { | |
1445 | uint32_t led_ctrl; | |
1446 | int32_t ret_val; | |
1447 | uint16_t phy_data; | |
1da177e4 | 1448 | |
2d7edb92 | 1449 | DEBUGFUNC("e1000_copper_link_igp_setup"); |
1da177e4 | 1450 | |
2d7edb92 MC |
1451 | if (hw->phy_reset_disable) |
1452 | return E1000_SUCCESS; | |
76c224bc | 1453 | |
2d7edb92 MC |
1454 | ret_val = e1000_phy_reset(hw); |
1455 | if (ret_val) { | |
1456 | DEBUGOUT("Error Resetting the PHY\n"); | |
1457 | return ret_val; | |
1458 | } | |
1da177e4 | 1459 | |
8fc897b0 | 1460 | /* Wait 15ms for MAC to configure PHY from eeprom settings */ |
f8ec4733 | 1461 | msleep(15); |
cd94dd0b | 1462 | if (hw->mac_type != e1000_ich8lan) { |
2d7edb92 MC |
1463 | /* Configure activity LED after PHY reset */ |
1464 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
1465 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
1466 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
1467 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
cd94dd0b | 1468 | } |
1da177e4 | 1469 | |
c9c1b834 JK |
1470 | /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ |
1471 | if (hw->phy_type == e1000_phy_igp) { | |
1472 | /* disable lplu d3 during driver init */ | |
1473 | ret_val = e1000_set_d3_lplu_state(hw, FALSE); | |
1474 | if (ret_val) { | |
1475 | DEBUGOUT("Error Disabling LPLU D3\n"); | |
1476 | return ret_val; | |
1477 | } | |
2d7edb92 | 1478 | } |
1da177e4 | 1479 | |
2d7edb92 MC |
1480 | /* disable lplu d0 during driver init */ |
1481 | ret_val = e1000_set_d0_lplu_state(hw, FALSE); | |
1482 | if (ret_val) { | |
1483 | DEBUGOUT("Error Disabling LPLU D0\n"); | |
1484 | return ret_val; | |
1485 | } | |
1486 | /* Configure mdi-mdix settings */ | |
1487 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); | |
1488 | if (ret_val) | |
1489 | return ret_val; | |
1da177e4 | 1490 | |
2d7edb92 MC |
1491 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1492 | hw->dsp_config_state = e1000_dsp_config_disabled; | |
1493 | /* Force MDI for earlier revs of the IGP PHY */ | |
1494 | phy_data &= ~(IGP01E1000_PSCR_AUTO_MDIX | IGP01E1000_PSCR_FORCE_MDI_MDIX); | |
1495 | hw->mdix = 1; | |
1da177e4 | 1496 | |
2d7edb92 MC |
1497 | } else { |
1498 | hw->dsp_config_state = e1000_dsp_config_enabled; | |
1499 | phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; | |
1da177e4 | 1500 | |
2d7edb92 MC |
1501 | switch (hw->mdix) { |
1502 | case 1: | |
1503 | phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
1504 | break; | |
1505 | case 2: | |
1506 | phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
1507 | break; | |
1508 | case 0: | |
1509 | default: | |
1510 | phy_data |= IGP01E1000_PSCR_AUTO_MDIX; | |
1511 | break; | |
1512 | } | |
1513 | } | |
1514 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); | |
8fc897b0 | 1515 | if (ret_val) |
2d7edb92 | 1516 | return ret_val; |
1da177e4 | 1517 | |
2d7edb92 | 1518 | /* set auto-master slave resolution settings */ |
8fc897b0 | 1519 | if (hw->autoneg) { |
2d7edb92 | 1520 | e1000_ms_type phy_ms_setting = hw->master_slave; |
1da177e4 | 1521 | |
8fc897b0 | 1522 | if (hw->ffe_config_state == e1000_ffe_config_active) |
2d7edb92 | 1523 | hw->ffe_config_state = e1000_ffe_config_enabled; |
1da177e4 | 1524 | |
8fc897b0 | 1525 | if (hw->dsp_config_state == e1000_dsp_config_activated) |
2d7edb92 | 1526 | hw->dsp_config_state = e1000_dsp_config_enabled; |
1da177e4 | 1527 | |
2d7edb92 MC |
1528 | /* when autonegotiation advertisment is only 1000Mbps then we |
1529 | * should disable SmartSpeed and enable Auto MasterSlave | |
1530 | * resolution as hardware default. */ | |
8fc897b0 | 1531 | if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { |
2d7edb92 | 1532 | /* Disable SmartSpeed */ |
8fc897b0 AK |
1533 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
1534 | &phy_data); | |
1535 | if (ret_val) | |
1da177e4 | 1536 | return ret_val; |
2d7edb92 | 1537 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; |
8fc897b0 AK |
1538 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
1539 | phy_data); | |
1540 | if (ret_val) | |
1da177e4 | 1541 | return ret_val; |
2d7edb92 MC |
1542 | /* Set auto Master/Slave resolution process */ |
1543 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); | |
8fc897b0 | 1544 | if (ret_val) |
2d7edb92 MC |
1545 | return ret_val; |
1546 | phy_data &= ~CR_1000T_MS_ENABLE; | |
1547 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); | |
8fc897b0 | 1548 | if (ret_val) |
2d7edb92 MC |
1549 | return ret_val; |
1550 | } | |
1da177e4 | 1551 | |
2d7edb92 | 1552 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); |
8fc897b0 | 1553 | if (ret_val) |
2d7edb92 | 1554 | return ret_val; |
1da177e4 | 1555 | |
2d7edb92 MC |
1556 | /* load defaults for future use */ |
1557 | hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? | |
1558 | ((phy_data & CR_1000T_MS_VALUE) ? | |
1559 | e1000_ms_force_master : | |
1560 | e1000_ms_force_slave) : | |
1561 | e1000_ms_auto; | |
1da177e4 | 1562 | |
2d7edb92 MC |
1563 | switch (phy_ms_setting) { |
1564 | case e1000_ms_force_master: | |
1565 | phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); | |
1566 | break; | |
1567 | case e1000_ms_force_slave: | |
1568 | phy_data |= CR_1000T_MS_ENABLE; | |
1569 | phy_data &= ~(CR_1000T_MS_VALUE); | |
1570 | break; | |
1571 | case e1000_ms_auto: | |
1572 | phy_data &= ~CR_1000T_MS_ENABLE; | |
1573 | default: | |
1574 | break; | |
1575 | } | |
1576 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); | |
8fc897b0 | 1577 | if (ret_val) |
2d7edb92 | 1578 | return ret_val; |
2b02893e | 1579 | } |
1da177e4 | 1580 | |
2b02893e | 1581 | return E1000_SUCCESS; |
2d7edb92 | 1582 | } |
1da177e4 | 1583 | |
6418ecc6 JK |
1584 | /******************************************************************** |
1585 | * Copper link setup for e1000_phy_gg82563 series. | |
1586 | * | |
1587 | * hw - Struct containing variables accessed by shared code | |
1588 | *********************************************************************/ | |
1589 | static int32_t | |
1590 | e1000_copper_link_ggp_setup(struct e1000_hw *hw) | |
1591 | { | |
1592 | int32_t ret_val; | |
1593 | uint16_t phy_data; | |
1594 | uint32_t reg_data; | |
1595 | ||
1596 | DEBUGFUNC("e1000_copper_link_ggp_setup"); | |
1597 | ||
8fc897b0 | 1598 | if (!hw->phy_reset_disable) { |
76c224bc | 1599 | |
6418ecc6 JK |
1600 | /* Enable CRS on TX for half-duplex operation. */ |
1601 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, | |
1602 | &phy_data); | |
8fc897b0 | 1603 | if (ret_val) |
6418ecc6 JK |
1604 | return ret_val; |
1605 | ||
1606 | phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | |
1607 | /* Use 25MHz for both link down and 1000BASE-T for Tx clock */ | |
1608 | phy_data |= GG82563_MSCR_TX_CLK_1000MBPS_25MHZ; | |
1609 | ||
1610 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, | |
1611 | phy_data); | |
8fc897b0 | 1612 | if (ret_val) |
6418ecc6 JK |
1613 | return ret_val; |
1614 | ||
1615 | /* Options: | |
1616 | * MDI/MDI-X = 0 (default) | |
1617 | * 0 - Auto for all speeds | |
1618 | * 1 - MDI mode | |
1619 | * 2 - MDI-X mode | |
1620 | * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | |
1621 | */ | |
1622 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 1623 | if (ret_val) |
6418ecc6 JK |
1624 | return ret_val; |
1625 | ||
1626 | phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK; | |
1627 | ||
1628 | switch (hw->mdix) { | |
1629 | case 1: | |
1630 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDI; | |
1631 | break; | |
1632 | case 2: | |
1633 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDIX; | |
1634 | break; | |
1635 | case 0: | |
1636 | default: | |
1637 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_AUTO; | |
1638 | break; | |
1639 | } | |
1640 | ||
1641 | /* Options: | |
1642 | * disable_polarity_correction = 0 (default) | |
1643 | * Automatic Correction for Reversed Cable Polarity | |
1644 | * 0 - Disabled | |
1645 | * 1 - Enabled | |
1646 | */ | |
1647 | phy_data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE; | |
8fc897b0 | 1648 | if (hw->disable_polarity_correction == 1) |
6418ecc6 JK |
1649 | phy_data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE; |
1650 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL, phy_data); | |
1651 | ||
8fc897b0 | 1652 | if (ret_val) |
6418ecc6 JK |
1653 | return ret_val; |
1654 | ||
1655 | /* SW Reset the PHY so all changes take effect */ | |
1656 | ret_val = e1000_phy_reset(hw); | |
1657 | if (ret_val) { | |
1658 | DEBUGOUT("Error Resetting the PHY\n"); | |
1659 | return ret_val; | |
1660 | } | |
1661 | } /* phy_reset_disable */ | |
1662 | ||
1663 | if (hw->mac_type == e1000_80003es2lan) { | |
1664 | /* Bypass RX and TX FIFO's */ | |
1665 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL, | |
1666 | E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS | | |
1667 | E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS); | |
1668 | if (ret_val) | |
1669 | return ret_val; | |
1670 | ||
1671 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, &phy_data); | |
1672 | if (ret_val) | |
1673 | return ret_val; | |
1674 | ||
1675 | phy_data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG; | |
1676 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, phy_data); | |
1677 | ||
1678 | if (ret_val) | |
1679 | return ret_val; | |
1680 | ||
1681 | reg_data = E1000_READ_REG(hw, CTRL_EXT); | |
1682 | reg_data &= ~(E1000_CTRL_EXT_LINK_MODE_MASK); | |
1683 | E1000_WRITE_REG(hw, CTRL_EXT, reg_data); | |
1684 | ||
1685 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, | |
1686 | &phy_data); | |
1687 | if (ret_val) | |
1688 | return ret_val; | |
1689 | ||
1690 | /* Do not init these registers when the HW is in IAMT mode, since the | |
1691 | * firmware will have already initialized them. We only initialize | |
1692 | * them if the HW is not in IAMT mode. | |
1693 | */ | |
1694 | if (e1000_check_mng_mode(hw) == FALSE) { | |
1695 | /* Enable Electrical Idle on the PHY */ | |
1696 | phy_data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE; | |
1697 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, | |
1698 | phy_data); | |
1699 | if (ret_val) | |
1700 | return ret_val; | |
1701 | ||
1702 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, | |
1703 | &phy_data); | |
1704 | if (ret_val) | |
1705 | return ret_val; | |
1706 | ||
cd94dd0b | 1707 | phy_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; |
6418ecc6 JK |
1708 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, |
1709 | phy_data); | |
8fc897b0 | 1710 | |
6418ecc6 JK |
1711 | if (ret_val) |
1712 | return ret_val; | |
1713 | } | |
1714 | ||
1715 | /* Workaround: Disable padding in Kumeran interface in the MAC | |
1716 | * and in the PHY to avoid CRC errors. | |
1717 | */ | |
1718 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_INBAND_CTRL, | |
1719 | &phy_data); | |
1720 | if (ret_val) | |
1721 | return ret_val; | |
1722 | phy_data |= GG82563_ICR_DIS_PADDING; | |
1723 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_INBAND_CTRL, | |
1724 | phy_data); | |
1725 | if (ret_val) | |
1726 | return ret_val; | |
1727 | } | |
1728 | ||
1729 | return E1000_SUCCESS; | |
1730 | } | |
1da177e4 | 1731 | |
2d7edb92 MC |
1732 | /******************************************************************** |
1733 | * Copper link setup for e1000_phy_m88 series. | |
1734 | * | |
1735 | * hw - Struct containing variables accessed by shared code | |
1736 | *********************************************************************/ | |
1737 | static int32_t | |
1738 | e1000_copper_link_mgp_setup(struct e1000_hw *hw) | |
1739 | { | |
1740 | int32_t ret_val; | |
1741 | uint16_t phy_data; | |
1da177e4 | 1742 | |
2d7edb92 | 1743 | DEBUGFUNC("e1000_copper_link_mgp_setup"); |
1da177e4 | 1744 | |
8fc897b0 | 1745 | if (hw->phy_reset_disable) |
2d7edb92 | 1746 | return E1000_SUCCESS; |
76c224bc | 1747 | |
2d7edb92 MC |
1748 | /* Enable CRS on TX. This must be set for half-duplex operation. */ |
1749 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 1750 | if (ret_val) |
2d7edb92 | 1751 | return ret_val; |
1da177e4 | 1752 | |
2d7edb92 | 1753 | phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; |
1da177e4 | 1754 | |
2d7edb92 MC |
1755 | /* Options: |
1756 | * MDI/MDI-X = 0 (default) | |
1757 | * 0 - Auto for all speeds | |
1758 | * 1 - MDI mode | |
1759 | * 2 - MDI-X mode | |
1760 | * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | |
1761 | */ | |
1762 | phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; | |
1da177e4 | 1763 | |
2d7edb92 MC |
1764 | switch (hw->mdix) { |
1765 | case 1: | |
1766 | phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; | |
1767 | break; | |
1768 | case 2: | |
1769 | phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; | |
1770 | break; | |
1771 | case 3: | |
1772 | phy_data |= M88E1000_PSCR_AUTO_X_1000T; | |
1773 | break; | |
1774 | case 0: | |
1775 | default: | |
1776 | phy_data |= M88E1000_PSCR_AUTO_X_MODE; | |
1777 | break; | |
1778 | } | |
1779 | ||
1780 | /* Options: | |
1781 | * disable_polarity_correction = 0 (default) | |
1782 | * Automatic Correction for Reversed Cable Polarity | |
1783 | * 0 - Disabled | |
1784 | * 1 - Enabled | |
1da177e4 | 1785 | */ |
2d7edb92 | 1786 | phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; |
8fc897b0 | 1787 | if (hw->disable_polarity_correction == 1) |
2d7edb92 | 1788 | phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; |
ee04022a AK |
1789 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); |
1790 | if (ret_val) | |
2d7edb92 MC |
1791 | return ret_val; |
1792 | ||
2d7edb92 | 1793 | if (hw->phy_revision < M88E1011_I_REV_4) { |
ee04022a AK |
1794 | /* Force TX_CLK in the Extended PHY Specific Control Register |
1795 | * to 25MHz clock. | |
1796 | */ | |
1797 | ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); | |
1798 | if (ret_val) | |
1799 | return ret_val; | |
1800 | ||
1801 | phy_data |= M88E1000_EPSCR_TX_CLK_25; | |
1802 | ||
1803 | if ((hw->phy_revision == E1000_REVISION_2) && | |
1804 | (hw->phy_id == M88E1111_I_PHY_ID)) { | |
1805 | /* Vidalia Phy, set the downshift counter to 5x */ | |
1806 | phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); | |
1807 | phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; | |
1808 | ret_val = e1000_write_phy_reg(hw, | |
1809 | M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
1810 | if (ret_val) | |
1811 | return ret_val; | |
1812 | } else { | |
1813 | /* Configure Master and Slave downshift values */ | |
1814 | phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | | |
2d7edb92 | 1815 | M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); |
ee04022a | 1816 | phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | |
2d7edb92 | 1817 | M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); |
ee04022a AK |
1818 | ret_val = e1000_write_phy_reg(hw, |
1819 | M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
1820 | if (ret_val) | |
1821 | return ret_val; | |
1822 | } | |
2d7edb92 | 1823 | } |
1da177e4 | 1824 | |
2d7edb92 MC |
1825 | /* SW Reset the PHY so all changes take effect */ |
1826 | ret_val = e1000_phy_reset(hw); | |
8fc897b0 | 1827 | if (ret_val) { |
2d7edb92 MC |
1828 | DEBUGOUT("Error Resetting the PHY\n"); |
1829 | return ret_val; | |
1da177e4 LT |
1830 | } |
1831 | ||
2d7edb92 | 1832 | return E1000_SUCCESS; |
1da177e4 LT |
1833 | } |
1834 | ||
2d7edb92 MC |
1835 | /******************************************************************** |
1836 | * Setup auto-negotiation and flow control advertisements, | |
1837 | * and then perform auto-negotiation. | |
1da177e4 LT |
1838 | * |
1839 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
1840 | *********************************************************************/ |
1841 | static int32_t | |
1842 | e1000_copper_link_autoneg(struct e1000_hw *hw) | |
1da177e4 LT |
1843 | { |
1844 | int32_t ret_val; | |
2d7edb92 | 1845 | uint16_t phy_data; |
1da177e4 | 1846 | |
2d7edb92 | 1847 | DEBUGFUNC("e1000_copper_link_autoneg"); |
1da177e4 | 1848 | |
2d7edb92 MC |
1849 | /* Perform some bounds checking on the hw->autoneg_advertised |
1850 | * parameter. If this variable is zero, then set it to the default. | |
1851 | */ | |
1852 | hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
1853 | ||
1854 | /* If autoneg_advertised is zero, we assume it was not defaulted | |
1855 | * by the calling code so we set to advertise full capability. | |
1856 | */ | |
8fc897b0 | 1857 | if (hw->autoneg_advertised == 0) |
2d7edb92 MC |
1858 | hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; |
1859 | ||
cd94dd0b AK |
1860 | /* IFE phy only supports 10/100 */ |
1861 | if (hw->phy_type == e1000_phy_ife) | |
1862 | hw->autoneg_advertised &= AUTONEG_ADVERTISE_10_100_ALL; | |
1863 | ||
2d7edb92 MC |
1864 | DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); |
1865 | ret_val = e1000_phy_setup_autoneg(hw); | |
8fc897b0 | 1866 | if (ret_val) { |
2d7edb92 MC |
1867 | DEBUGOUT("Error Setting up Auto-Negotiation\n"); |
1868 | return ret_val; | |
1869 | } | |
1870 | DEBUGOUT("Restarting Auto-Neg\n"); | |
1871 | ||
1872 | /* Restart auto-negotiation by setting the Auto Neg Enable bit and | |
1873 | * the Auto Neg Restart bit in the PHY control register. | |
1874 | */ | |
1875 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); | |
8fc897b0 | 1876 | if (ret_val) |
1da177e4 LT |
1877 | return ret_val; |
1878 | ||
2d7edb92 MC |
1879 | phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); |
1880 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
8fc897b0 | 1881 | if (ret_val) |
1da177e4 LT |
1882 | return ret_val; |
1883 | ||
2d7edb92 MC |
1884 | /* Does the user want to wait for Auto-Neg to complete here, or |
1885 | * check at a later time (for example, callback routine). | |
1886 | */ | |
8fc897b0 | 1887 | if (hw->wait_autoneg_complete) { |
2d7edb92 | 1888 | ret_val = e1000_wait_autoneg(hw); |
8fc897b0 | 1889 | if (ret_val) { |
2d7edb92 MC |
1890 | DEBUGOUT("Error while waiting for autoneg to complete\n"); |
1891 | return ret_val; | |
1892 | } | |
1893 | } | |
1894 | ||
1895 | hw->get_link_status = TRUE; | |
1896 | ||
1897 | return E1000_SUCCESS; | |
1898 | } | |
1899 | ||
2d7edb92 MC |
1900 | /****************************************************************************** |
1901 | * Config the MAC and the PHY after link is up. | |
1902 | * 1) Set up the MAC to the current PHY speed/duplex | |
1903 | * if we are on 82543. If we | |
1904 | * are on newer silicon, we only need to configure | |
1905 | * collision distance in the Transmit Control Register. | |
1906 | * 2) Set up flow control on the MAC to that established with | |
1907 | * the link partner. | |
76c224bc | 1908 | * 3) Config DSP to improve Gigabit link quality for some PHY revisions. |
2d7edb92 MC |
1909 | * |
1910 | * hw - Struct containing variables accessed by shared code | |
1911 | ******************************************************************************/ | |
1912 | static int32_t | |
1913 | e1000_copper_link_postconfig(struct e1000_hw *hw) | |
1914 | { | |
1915 | int32_t ret_val; | |
1916 | DEBUGFUNC("e1000_copper_link_postconfig"); | |
76c224bc | 1917 | |
8fc897b0 | 1918 | if (hw->mac_type >= e1000_82544) { |
2d7edb92 MC |
1919 | e1000_config_collision_dist(hw); |
1920 | } else { | |
1921 | ret_val = e1000_config_mac_to_phy(hw); | |
8fc897b0 | 1922 | if (ret_val) { |
2d7edb92 MC |
1923 | DEBUGOUT("Error configuring MAC to PHY settings\n"); |
1924 | return ret_val; | |
1925 | } | |
1926 | } | |
1927 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 1928 | if (ret_val) { |
2d7edb92 MC |
1929 | DEBUGOUT("Error Configuring Flow Control\n"); |
1930 | return ret_val; | |
1931 | } | |
1932 | ||
1933 | /* Config DSP to improve Giga link quality */ | |
8fc897b0 | 1934 | if (hw->phy_type == e1000_phy_igp) { |
2d7edb92 | 1935 | ret_val = e1000_config_dsp_after_link_change(hw, TRUE); |
8fc897b0 | 1936 | if (ret_val) { |
2d7edb92 MC |
1937 | DEBUGOUT("Error Configuring DSP after link up\n"); |
1938 | return ret_val; | |
1939 | } | |
1940 | } | |
76c224bc | 1941 | |
2d7edb92 MC |
1942 | return E1000_SUCCESS; |
1943 | } | |
1944 | ||
1945 | /****************************************************************************** | |
1946 | * Detects which PHY is present and setup the speed and duplex | |
1947 | * | |
1948 | * hw - Struct containing variables accessed by shared code | |
1949 | ******************************************************************************/ | |
1950 | static int32_t | |
1951 | e1000_setup_copper_link(struct e1000_hw *hw) | |
1952 | { | |
1953 | int32_t ret_val; | |
1954 | uint16_t i; | |
1955 | uint16_t phy_data; | |
6418ecc6 | 1956 | uint16_t reg_data; |
2d7edb92 MC |
1957 | |
1958 | DEBUGFUNC("e1000_setup_copper_link"); | |
1959 | ||
cd94dd0b AK |
1960 | switch (hw->mac_type) { |
1961 | case e1000_80003es2lan: | |
1962 | case e1000_ich8lan: | |
1963 | /* Set the mac to wait the maximum time between each | |
1964 | * iteration and increase the max iterations when | |
1965 | * polling the phy; this fixes erroneous timeouts at 10Mbps. */ | |
1966 | ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); | |
1967 | if (ret_val) | |
1968 | return ret_val; | |
1969 | ret_val = e1000_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); | |
1970 | if (ret_val) | |
1971 | return ret_val; | |
1972 | reg_data |= 0x3F; | |
1973 | ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); | |
1974 | if (ret_val) | |
1975 | return ret_val; | |
1976 | default: | |
1977 | break; | |
1978 | } | |
1979 | ||
2d7edb92 MC |
1980 | /* Check if it is a valid PHY and set PHY mode if necessary. */ |
1981 | ret_val = e1000_copper_link_preconfig(hw); | |
8fc897b0 | 1982 | if (ret_val) |
2d7edb92 MC |
1983 | return ret_val; |
1984 | ||
6418ecc6 JK |
1985 | switch (hw->mac_type) { |
1986 | case e1000_80003es2lan: | |
cd94dd0b AK |
1987 | /* Kumeran registers are written-only */ |
1988 | reg_data = E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT; | |
6418ecc6 JK |
1989 | reg_data |= E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING; |
1990 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_INB_CTRL, | |
1991 | reg_data); | |
1992 | if (ret_val) | |
1993 | return ret_val; | |
1994 | break; | |
1995 | default: | |
1996 | break; | |
1997 | } | |
1998 | ||
2d7edb92 | 1999 | if (hw->phy_type == e1000_phy_igp || |
cd94dd0b | 2000 | hw->phy_type == e1000_phy_igp_3 || |
2d7edb92 MC |
2001 | hw->phy_type == e1000_phy_igp_2) { |
2002 | ret_val = e1000_copper_link_igp_setup(hw); | |
8fc897b0 | 2003 | if (ret_val) |
2d7edb92 MC |
2004 | return ret_val; |
2005 | } else if (hw->phy_type == e1000_phy_m88) { | |
2006 | ret_val = e1000_copper_link_mgp_setup(hw); | |
8fc897b0 | 2007 | if (ret_val) |
2d7edb92 | 2008 | return ret_val; |
6418ecc6 JK |
2009 | } else if (hw->phy_type == e1000_phy_gg82563) { |
2010 | ret_val = e1000_copper_link_ggp_setup(hw); | |
8fc897b0 | 2011 | if (ret_val) |
6418ecc6 | 2012 | return ret_val; |
2d7edb92 MC |
2013 | } |
2014 | ||
8fc897b0 | 2015 | if (hw->autoneg) { |
76c224bc AK |
2016 | /* Setup autoneg and flow control advertisement |
2017 | * and perform autonegotiation */ | |
2d7edb92 | 2018 | ret_val = e1000_copper_link_autoneg(hw); |
8fc897b0 | 2019 | if (ret_val) |
76c224bc | 2020 | return ret_val; |
2d7edb92 MC |
2021 | } else { |
2022 | /* PHY will be set to 10H, 10F, 100H,or 100F | |
2023 | * depending on value from forced_speed_duplex. */ | |
2024 | DEBUGOUT("Forcing speed and duplex\n"); | |
2025 | ret_val = e1000_phy_force_speed_duplex(hw); | |
8fc897b0 | 2026 | if (ret_val) { |
2d7edb92 MC |
2027 | DEBUGOUT("Error Forcing Speed and Duplex\n"); |
2028 | return ret_val; | |
2029 | } | |
2030 | } | |
2031 | ||
2032 | /* Check link status. Wait up to 100 microseconds for link to become | |
2033 | * valid. | |
2034 | */ | |
8fc897b0 | 2035 | for (i = 0; i < 10; i++) { |
2d7edb92 | 2036 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); |
8fc897b0 | 2037 | if (ret_val) |
2d7edb92 MC |
2038 | return ret_val; |
2039 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2040 | if (ret_val) |
2d7edb92 MC |
2041 | return ret_val; |
2042 | ||
8fc897b0 | 2043 | if (phy_data & MII_SR_LINK_STATUS) { |
2d7edb92 MC |
2044 | /* Config the MAC and PHY after link is up */ |
2045 | ret_val = e1000_copper_link_postconfig(hw); | |
8fc897b0 | 2046 | if (ret_val) |
2d7edb92 | 2047 | return ret_val; |
76c224bc | 2048 | |
2d7edb92 MC |
2049 | DEBUGOUT("Valid link established!!!\n"); |
2050 | return E1000_SUCCESS; | |
2051 | } | |
2052 | udelay(10); | |
2053 | } | |
2054 | ||
2055 | DEBUGOUT("Unable to establish link!!!\n"); | |
2056 | return E1000_SUCCESS; | |
2057 | } | |
2058 | ||
6418ecc6 JK |
2059 | /****************************************************************************** |
2060 | * Configure the MAC-to-PHY interface for 10/100Mbps | |
2061 | * | |
2062 | * hw - Struct containing variables accessed by shared code | |
2063 | ******************************************************************************/ | |
2064 | static int32_t | |
cd94dd0b | 2065 | e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, uint16_t duplex) |
6418ecc6 JK |
2066 | { |
2067 | int32_t ret_val = E1000_SUCCESS; | |
2068 | uint32_t tipg; | |
2069 | uint16_t reg_data; | |
2070 | ||
2071 | DEBUGFUNC("e1000_configure_kmrn_for_10_100"); | |
2072 | ||
2073 | reg_data = E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT; | |
2074 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, | |
2075 | reg_data); | |
2076 | if (ret_val) | |
2077 | return ret_val; | |
2078 | ||
2079 | /* Configure Transmit Inter-Packet Gap */ | |
2080 | tipg = E1000_READ_REG(hw, TIPG); | |
2081 | tipg &= ~E1000_TIPG_IPGT_MASK; | |
2082 | tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_10_100; | |
2083 | E1000_WRITE_REG(hw, TIPG, tipg); | |
2084 | ||
cd94dd0b AK |
2085 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); |
2086 | ||
2087 | if (ret_val) | |
2088 | return ret_val; | |
2089 | ||
2090 | if (duplex == HALF_DUPLEX) | |
2091 | reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER; | |
2092 | else | |
2093 | reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | |
2094 | ||
2095 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | |
2096 | ||
6418ecc6 JK |
2097 | return ret_val; |
2098 | } | |
2099 | ||
2100 | static int32_t | |
2101 | e1000_configure_kmrn_for_1000(struct e1000_hw *hw) | |
2102 | { | |
2103 | int32_t ret_val = E1000_SUCCESS; | |
2104 | uint16_t reg_data; | |
2105 | uint32_t tipg; | |
2106 | ||
2107 | DEBUGFUNC("e1000_configure_kmrn_for_1000"); | |
2108 | ||
2109 | reg_data = E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT; | |
2110 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, | |
2111 | reg_data); | |
2112 | if (ret_val) | |
2113 | return ret_val; | |
2114 | ||
2115 | /* Configure Transmit Inter-Packet Gap */ | |
2116 | tipg = E1000_READ_REG(hw, TIPG); | |
2117 | tipg &= ~E1000_TIPG_IPGT_MASK; | |
2118 | tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; | |
2119 | E1000_WRITE_REG(hw, TIPG, tipg); | |
2120 | ||
cd94dd0b AK |
2121 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); |
2122 | ||
2123 | if (ret_val) | |
2124 | return ret_val; | |
2125 | ||
2126 | reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | |
2127 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | |
2128 | ||
6418ecc6 JK |
2129 | return ret_val; |
2130 | } | |
2131 | ||
2d7edb92 MC |
2132 | /****************************************************************************** |
2133 | * Configures PHY autoneg and flow control advertisement settings | |
2134 | * | |
2135 | * hw - Struct containing variables accessed by shared code | |
2136 | ******************************************************************************/ | |
2137 | int32_t | |
2138 | e1000_phy_setup_autoneg(struct e1000_hw *hw) | |
2139 | { | |
2140 | int32_t ret_val; | |
2141 | uint16_t mii_autoneg_adv_reg; | |
2142 | uint16_t mii_1000t_ctrl_reg; | |
2143 | ||
2144 | DEBUGFUNC("e1000_phy_setup_autoneg"); | |
2145 | ||
2146 | /* Read the MII Auto-Neg Advertisement Register (Address 4). */ | |
2147 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); | |
8fc897b0 | 2148 | if (ret_val) |
2d7edb92 MC |
2149 | return ret_val; |
2150 | ||
cd94dd0b AK |
2151 | if (hw->phy_type != e1000_phy_ife) { |
2152 | /* Read the MII 1000Base-T Control Register (Address 9). */ | |
2153 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); | |
2154 | if (ret_val) | |
2155 | return ret_val; | |
2156 | } else | |
2157 | mii_1000t_ctrl_reg=0; | |
2d7edb92 MC |
2158 | |
2159 | /* Need to parse both autoneg_advertised and fc and set up | |
2160 | * the appropriate PHY registers. First we will parse for | |
1da177e4 LT |
2161 | * autoneg_advertised software override. Since we can advertise |
2162 | * a plethora of combinations, we need to check each bit | |
2163 | * individually. | |
2164 | */ | |
2165 | ||
2166 | /* First we clear all the 10/100 mb speed bits in the Auto-Neg | |
2167 | * Advertisement Register (Address 4) and the 1000 mb speed bits in | |
2168 | * the 1000Base-T Control Register (Address 9). | |
2169 | */ | |
2170 | mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; | |
2171 | mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; | |
2172 | ||
2173 | DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); | |
2174 | ||
2175 | /* Do we want to advertise 10 Mb Half Duplex? */ | |
8fc897b0 | 2176 | if (hw->autoneg_advertised & ADVERTISE_10_HALF) { |
1da177e4 LT |
2177 | DEBUGOUT("Advertise 10mb Half duplex\n"); |
2178 | mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; | |
2179 | } | |
2180 | ||
2181 | /* Do we want to advertise 10 Mb Full Duplex? */ | |
8fc897b0 | 2182 | if (hw->autoneg_advertised & ADVERTISE_10_FULL) { |
1da177e4 LT |
2183 | DEBUGOUT("Advertise 10mb Full duplex\n"); |
2184 | mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; | |
2185 | } | |
2186 | ||
2187 | /* Do we want to advertise 100 Mb Half Duplex? */ | |
8fc897b0 | 2188 | if (hw->autoneg_advertised & ADVERTISE_100_HALF) { |
1da177e4 LT |
2189 | DEBUGOUT("Advertise 100mb Half duplex\n"); |
2190 | mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; | |
2191 | } | |
2192 | ||
2193 | /* Do we want to advertise 100 Mb Full Duplex? */ | |
8fc897b0 | 2194 | if (hw->autoneg_advertised & ADVERTISE_100_FULL) { |
1da177e4 LT |
2195 | DEBUGOUT("Advertise 100mb Full duplex\n"); |
2196 | mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; | |
2197 | } | |
2198 | ||
2199 | /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ | |
8fc897b0 | 2200 | if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { |
1da177e4 LT |
2201 | DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n"); |
2202 | } | |
2203 | ||
2204 | /* Do we want to advertise 1000 Mb Full Duplex? */ | |
8fc897b0 | 2205 | if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { |
1da177e4 LT |
2206 | DEBUGOUT("Advertise 1000mb Full duplex\n"); |
2207 | mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; | |
cd94dd0b AK |
2208 | if (hw->phy_type == e1000_phy_ife) { |
2209 | DEBUGOUT("e1000_phy_ife is a 10/100 PHY. Gigabit speed is not supported.\n"); | |
2210 | } | |
1da177e4 LT |
2211 | } |
2212 | ||
2213 | /* Check for a software override of the flow control settings, and | |
2214 | * setup the PHY advertisement registers accordingly. If | |
2215 | * auto-negotiation is enabled, then software will have to set the | |
2216 | * "PAUSE" bits to the correct value in the Auto-Negotiation | |
2217 | * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. | |
2218 | * | |
2219 | * The possible values of the "fc" parameter are: | |
2220 | * 0: Flow control is completely disabled | |
2221 | * 1: Rx flow control is enabled (we can receive pause frames | |
2222 | * but not send pause frames). | |
2223 | * 2: Tx flow control is enabled (we can send pause frames | |
2224 | * but we do not support receiving pause frames). | |
2225 | * 3: Both Rx and TX flow control (symmetric) are enabled. | |
2226 | * other: No software override. The flow control configuration | |
2227 | * in the EEPROM is used. | |
2228 | */ | |
2229 | switch (hw->fc) { | |
11241b10 | 2230 | case E1000_FC_NONE: /* 0 */ |
1da177e4 LT |
2231 | /* Flow control (RX & TX) is completely disabled by a |
2232 | * software over-ride. | |
2233 | */ | |
2234 | mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2235 | break; | |
11241b10 | 2236 | case E1000_FC_RX_PAUSE: /* 1 */ |
1da177e4 LT |
2237 | /* RX Flow control is enabled, and TX Flow control is |
2238 | * disabled, by a software over-ride. | |
2239 | */ | |
2240 | /* Since there really isn't a way to advertise that we are | |
2241 | * capable of RX Pause ONLY, we will advertise that we | |
2242 | * support both symmetric and asymmetric RX PAUSE. Later | |
2243 | * (in e1000_config_fc_after_link_up) we will disable the | |
2244 | *hw's ability to send PAUSE frames. | |
2245 | */ | |
2246 | mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2247 | break; | |
11241b10 | 2248 | case E1000_FC_TX_PAUSE: /* 2 */ |
1da177e4 LT |
2249 | /* TX Flow control is enabled, and RX Flow control is |
2250 | * disabled, by a software over-ride. | |
2251 | */ | |
2252 | mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; | |
2253 | mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; | |
2254 | break; | |
11241b10 | 2255 | case E1000_FC_FULL: /* 3 */ |
1da177e4 LT |
2256 | /* Flow control (both RX and TX) is enabled by a software |
2257 | * over-ride. | |
2258 | */ | |
2259 | mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2260 | break; | |
2261 | default: | |
2262 | DEBUGOUT("Flow control param set incorrectly\n"); | |
2263 | return -E1000_ERR_CONFIG; | |
2264 | } | |
2265 | ||
2266 | ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); | |
8fc897b0 | 2267 | if (ret_val) |
1da177e4 LT |
2268 | return ret_val; |
2269 | ||
2270 | DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); | |
2271 | ||
cd94dd0b AK |
2272 | if (hw->phy_type != e1000_phy_ife) { |
2273 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); | |
2274 | if (ret_val) | |
2275 | return ret_val; | |
2276 | } | |
1da177e4 LT |
2277 | |
2278 | return E1000_SUCCESS; | |
2279 | } | |
2280 | ||
2281 | /****************************************************************************** | |
2282 | * Force PHY speed and duplex settings to hw->forced_speed_duplex | |
2283 | * | |
2284 | * hw - Struct containing variables accessed by shared code | |
2285 | ******************************************************************************/ | |
2286 | static int32_t | |
2287 | e1000_phy_force_speed_duplex(struct e1000_hw *hw) | |
2288 | { | |
2289 | uint32_t ctrl; | |
2290 | int32_t ret_val; | |
2291 | uint16_t mii_ctrl_reg; | |
2292 | uint16_t mii_status_reg; | |
2293 | uint16_t phy_data; | |
2294 | uint16_t i; | |
2295 | ||
2296 | DEBUGFUNC("e1000_phy_force_speed_duplex"); | |
2297 | ||
2298 | /* Turn off Flow control if we are forcing speed and duplex. */ | |
11241b10 | 2299 | hw->fc = E1000_FC_NONE; |
1da177e4 LT |
2300 | |
2301 | DEBUGOUT1("hw->fc = %d\n", hw->fc); | |
2302 | ||
2303 | /* Read the Device Control Register. */ | |
2304 | ctrl = E1000_READ_REG(hw, CTRL); | |
2305 | ||
2306 | /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ | |
2307 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
2308 | ctrl &= ~(DEVICE_SPEED_MASK); | |
2309 | ||
2310 | /* Clear the Auto Speed Detect Enable bit. */ | |
2311 | ctrl &= ~E1000_CTRL_ASDE; | |
2312 | ||
2313 | /* Read the MII Control Register. */ | |
2314 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); | |
8fc897b0 | 2315 | if (ret_val) |
1da177e4 LT |
2316 | return ret_val; |
2317 | ||
2318 | /* We need to disable autoneg in order to force link and duplex. */ | |
2319 | ||
2320 | mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; | |
2321 | ||
2322 | /* Are we forcing Full or Half Duplex? */ | |
8fc897b0 AK |
2323 | if (hw->forced_speed_duplex == e1000_100_full || |
2324 | hw->forced_speed_duplex == e1000_10_full) { | |
1da177e4 LT |
2325 | /* We want to force full duplex so we SET the full duplex bits in the |
2326 | * Device and MII Control Registers. | |
2327 | */ | |
2328 | ctrl |= E1000_CTRL_FD; | |
2329 | mii_ctrl_reg |= MII_CR_FULL_DUPLEX; | |
2330 | DEBUGOUT("Full Duplex\n"); | |
2331 | } else { | |
2332 | /* We want to force half duplex so we CLEAR the full duplex bits in | |
2333 | * the Device and MII Control Registers. | |
2334 | */ | |
2335 | ctrl &= ~E1000_CTRL_FD; | |
2336 | mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; | |
2337 | DEBUGOUT("Half Duplex\n"); | |
2338 | } | |
2339 | ||
2340 | /* Are we forcing 100Mbps??? */ | |
8fc897b0 | 2341 | if (hw->forced_speed_duplex == e1000_100_full || |
1da177e4 LT |
2342 | hw->forced_speed_duplex == e1000_100_half) { |
2343 | /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ | |
2344 | ctrl |= E1000_CTRL_SPD_100; | |
2345 | mii_ctrl_reg |= MII_CR_SPEED_100; | |
2346 | mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); | |
2347 | DEBUGOUT("Forcing 100mb "); | |
2348 | } else { | |
2349 | /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ | |
2350 | ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); | |
2351 | mii_ctrl_reg |= MII_CR_SPEED_10; | |
2352 | mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); | |
2353 | DEBUGOUT("Forcing 10mb "); | |
2354 | } | |
2355 | ||
2356 | e1000_config_collision_dist(hw); | |
2357 | ||
2358 | /* Write the configured values back to the Device Control Reg. */ | |
2359 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2360 | ||
6418ecc6 JK |
2361 | if ((hw->phy_type == e1000_phy_m88) || |
2362 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 | 2363 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); |
8fc897b0 | 2364 | if (ret_val) |
1da177e4 LT |
2365 | return ret_val; |
2366 | ||
2367 | /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI | |
2368 | * forced whenever speed are duplex are forced. | |
2369 | */ | |
2370 | phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; | |
2371 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2372 | if (ret_val) |
1da177e4 LT |
2373 | return ret_val; |
2374 | ||
2375 | DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); | |
2376 | ||
2377 | /* Need to reset the PHY or these changes will be ignored */ | |
2378 | mii_ctrl_reg |= MII_CR_RESET; | |
90fb5135 | 2379 | |
cd94dd0b AK |
2380 | /* Disable MDI-X support for 10/100 */ |
2381 | } else if (hw->phy_type == e1000_phy_ife) { | |
2382 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); | |
2383 | if (ret_val) | |
2384 | return ret_val; | |
2385 | ||
2386 | phy_data &= ~IFE_PMC_AUTO_MDIX; | |
2387 | phy_data &= ~IFE_PMC_FORCE_MDIX; | |
2388 | ||
2389 | ret_val = e1000_write_phy_reg(hw, IFE_PHY_MDIX_CONTROL, phy_data); | |
2390 | if (ret_val) | |
2391 | return ret_val; | |
90fb5135 | 2392 | |
1da177e4 LT |
2393 | } else { |
2394 | /* Clear Auto-Crossover to force MDI manually. IGP requires MDI | |
2395 | * forced whenever speed or duplex are forced. | |
2396 | */ | |
2397 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); | |
8fc897b0 | 2398 | if (ret_val) |
1da177e4 LT |
2399 | return ret_val; |
2400 | ||
2401 | phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; | |
2402 | phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
2403 | ||
2404 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); | |
8fc897b0 | 2405 | if (ret_val) |
1da177e4 LT |
2406 | return ret_val; |
2407 | } | |
2408 | ||
2409 | /* Write back the modified PHY MII control register. */ | |
2410 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); | |
8fc897b0 | 2411 | if (ret_val) |
1da177e4 LT |
2412 | return ret_val; |
2413 | ||
2414 | udelay(1); | |
2415 | ||
2416 | /* The wait_autoneg_complete flag may be a little misleading here. | |
2417 | * Since we are forcing speed and duplex, Auto-Neg is not enabled. | |
2418 | * But we do want to delay for a period while forcing only so we | |
2419 | * don't generate false No Link messages. So we will wait here | |
2420 | * only if the user has set wait_autoneg_complete to 1, which is | |
2421 | * the default. | |
2422 | */ | |
8fc897b0 | 2423 | if (hw->wait_autoneg_complete) { |
1da177e4 LT |
2424 | /* We will wait for autoneg to complete. */ |
2425 | DEBUGOUT("Waiting for forced speed/duplex link.\n"); | |
2426 | mii_status_reg = 0; | |
2427 | ||
2428 | /* We will wait for autoneg to complete or 4.5 seconds to expire. */ | |
8fc897b0 | 2429 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
2430 | /* Read the MII Status Register and wait for Auto-Neg Complete bit |
2431 | * to be set. | |
2432 | */ | |
2433 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2434 | if (ret_val) |
1da177e4 LT |
2435 | return ret_val; |
2436 | ||
2437 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2438 | if (ret_val) |
1da177e4 LT |
2439 | return ret_val; |
2440 | ||
8fc897b0 | 2441 | if (mii_status_reg & MII_SR_LINK_STATUS) break; |
f8ec4733 | 2442 | msleep(100); |
1da177e4 | 2443 | } |
8fc897b0 | 2444 | if ((i == 0) && |
6418ecc6 JK |
2445 | ((hw->phy_type == e1000_phy_m88) || |
2446 | (hw->phy_type == e1000_phy_gg82563))) { | |
1da177e4 LT |
2447 | /* We didn't get link. Reset the DSP and wait again for link. */ |
2448 | ret_val = e1000_phy_reset_dsp(hw); | |
8fc897b0 | 2449 | if (ret_val) { |
1da177e4 LT |
2450 | DEBUGOUT("Error Resetting PHY DSP\n"); |
2451 | return ret_val; | |
2452 | } | |
2453 | } | |
2454 | /* This loop will early-out if the link condition has been met. */ | |
8fc897b0 AK |
2455 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
2456 | if (mii_status_reg & MII_SR_LINK_STATUS) break; | |
f8ec4733 | 2457 | msleep(100); |
1da177e4 LT |
2458 | /* Read the MII Status Register and wait for Auto-Neg Complete bit |
2459 | * to be set. | |
2460 | */ | |
2461 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2462 | if (ret_val) |
1da177e4 LT |
2463 | return ret_val; |
2464 | ||
2465 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2466 | if (ret_val) |
1da177e4 LT |
2467 | return ret_val; |
2468 | } | |
2469 | } | |
2470 | ||
2471 | if (hw->phy_type == e1000_phy_m88) { | |
2472 | /* Because we reset the PHY above, we need to re-force TX_CLK in the | |
2473 | * Extended PHY Specific Control Register to 25MHz clock. This value | |
2474 | * defaults back to a 2.5MHz clock when the PHY is reset. | |
2475 | */ | |
2476 | ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 2477 | if (ret_val) |
1da177e4 LT |
2478 | return ret_val; |
2479 | ||
2480 | phy_data |= M88E1000_EPSCR_TX_CLK_25; | |
2481 | ret_val = e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2482 | if (ret_val) |
1da177e4 LT |
2483 | return ret_val; |
2484 | ||
2485 | /* In addition, because of the s/w reset above, we need to enable CRS on | |
2486 | * TX. This must be set for both full and half duplex operation. | |
2487 | */ | |
2488 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 2489 | if (ret_val) |
1da177e4 LT |
2490 | return ret_val; |
2491 | ||
2492 | phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; | |
2493 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2494 | if (ret_val) |
1da177e4 LT |
2495 | return ret_val; |
2496 | ||
8fc897b0 AK |
2497 | if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && |
2498 | (!hw->autoneg) && (hw->forced_speed_duplex == e1000_10_full || | |
2499 | hw->forced_speed_duplex == e1000_10_half)) { | |
1da177e4 | 2500 | ret_val = e1000_polarity_reversal_workaround(hw); |
8fc897b0 | 2501 | if (ret_val) |
1da177e4 LT |
2502 | return ret_val; |
2503 | } | |
6418ecc6 JK |
2504 | } else if (hw->phy_type == e1000_phy_gg82563) { |
2505 | /* The TX_CLK of the Extended PHY Specific Control Register defaults | |
2506 | * to 2.5MHz on a reset. We need to re-force it back to 25MHz, if | |
2507 | * we're not in a forced 10/duplex configuration. */ | |
2508 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data); | |
2509 | if (ret_val) | |
2510 | return ret_val; | |
2511 | ||
2512 | phy_data &= ~GG82563_MSCR_TX_CLK_MASK; | |
2513 | if ((hw->forced_speed_duplex == e1000_10_full) || | |
2514 | (hw->forced_speed_duplex == e1000_10_half)) | |
2515 | phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ; | |
2516 | else | |
2517 | phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25MHZ; | |
2518 | ||
2519 | /* Also due to the reset, we need to enable CRS on Tx. */ | |
2520 | phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | |
2521 | ||
2522 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data); | |
2523 | if (ret_val) | |
2524 | return ret_val; | |
1da177e4 LT |
2525 | } |
2526 | return E1000_SUCCESS; | |
2527 | } | |
2528 | ||
2529 | /****************************************************************************** | |
2530 | * Sets the collision distance in the Transmit Control register | |
2531 | * | |
2532 | * hw - Struct containing variables accessed by shared code | |
2533 | * | |
2534 | * Link should have been established previously. Reads the speed and duplex | |
2535 | * information from the Device Status register. | |
2536 | ******************************************************************************/ | |
2537 | void | |
2538 | e1000_config_collision_dist(struct e1000_hw *hw) | |
2539 | { | |
0fadb059 | 2540 | uint32_t tctl, coll_dist; |
1da177e4 LT |
2541 | |
2542 | DEBUGFUNC("e1000_config_collision_dist"); | |
2543 | ||
0fadb059 JK |
2544 | if (hw->mac_type < e1000_82543) |
2545 | coll_dist = E1000_COLLISION_DISTANCE_82542; | |
2546 | else | |
2547 | coll_dist = E1000_COLLISION_DISTANCE; | |
2548 | ||
1da177e4 LT |
2549 | tctl = E1000_READ_REG(hw, TCTL); |
2550 | ||
2551 | tctl &= ~E1000_TCTL_COLD; | |
0fadb059 | 2552 | tctl |= coll_dist << E1000_COLD_SHIFT; |
1da177e4 LT |
2553 | |
2554 | E1000_WRITE_REG(hw, TCTL, tctl); | |
2555 | E1000_WRITE_FLUSH(hw); | |
2556 | } | |
2557 | ||
2558 | /****************************************************************************** | |
2559 | * Sets MAC speed and duplex settings to reflect the those in the PHY | |
2560 | * | |
2561 | * hw - Struct containing variables accessed by shared code | |
2562 | * mii_reg - data to write to the MII control register | |
2563 | * | |
2564 | * The contents of the PHY register containing the needed information need to | |
2565 | * be passed in. | |
2566 | ******************************************************************************/ | |
2567 | static int32_t | |
2568 | e1000_config_mac_to_phy(struct e1000_hw *hw) | |
2569 | { | |
2570 | uint32_t ctrl; | |
2571 | int32_t ret_val; | |
2572 | uint16_t phy_data; | |
2573 | ||
2574 | DEBUGFUNC("e1000_config_mac_to_phy"); | |
2575 | ||
76c224bc | 2576 | /* 82544 or newer MAC, Auto Speed Detection takes care of |
2d7edb92 MC |
2577 | * MAC speed/duplex configuration.*/ |
2578 | if (hw->mac_type >= e1000_82544) | |
2579 | return E1000_SUCCESS; | |
2580 | ||
1da177e4 LT |
2581 | /* Read the Device Control Register and set the bits to Force Speed |
2582 | * and Duplex. | |
2583 | */ | |
2584 | ctrl = E1000_READ_REG(hw, CTRL); | |
2585 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
2586 | ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); | |
2587 | ||
2588 | /* Set up duplex in the Device Control and Transmit Control | |
2589 | * registers depending on negotiated values. | |
2590 | */ | |
2d7edb92 | 2591 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); |
8fc897b0 | 2592 | if (ret_val) |
2d7edb92 | 2593 | return ret_val; |
1da177e4 | 2594 | |
8fc897b0 | 2595 | if (phy_data & M88E1000_PSSR_DPLX) |
2d7edb92 | 2596 | ctrl |= E1000_CTRL_FD; |
76c224bc | 2597 | else |
2d7edb92 | 2598 | ctrl &= ~E1000_CTRL_FD; |
1da177e4 | 2599 | |
2d7edb92 | 2600 | e1000_config_collision_dist(hw); |
1da177e4 | 2601 | |
2d7edb92 MC |
2602 | /* Set up speed in the Device Control register depending on |
2603 | * negotiated values. | |
2604 | */ | |
8fc897b0 | 2605 | if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) |
2d7edb92 | 2606 | ctrl |= E1000_CTRL_SPD_1000; |
8fc897b0 | 2607 | else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) |
2d7edb92 | 2608 | ctrl |= E1000_CTRL_SPD_100; |
1da177e4 | 2609 | |
1da177e4 LT |
2610 | /* Write the configured values back to the Device Control Reg. */ |
2611 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2612 | return E1000_SUCCESS; | |
2613 | } | |
2614 | ||
2615 | /****************************************************************************** | |
2616 | * Forces the MAC's flow control settings. | |
2617 | * | |
2618 | * hw - Struct containing variables accessed by shared code | |
2619 | * | |
2620 | * Sets the TFCE and RFCE bits in the device control register to reflect | |
2621 | * the adapter settings. TFCE and RFCE need to be explicitly set by | |
2622 | * software when a Copper PHY is used because autonegotiation is managed | |
2623 | * by the PHY rather than the MAC. Software must also configure these | |
2624 | * bits when link is forced on a fiber connection. | |
2625 | *****************************************************************************/ | |
2626 | int32_t | |
2627 | e1000_force_mac_fc(struct e1000_hw *hw) | |
2628 | { | |
2629 | uint32_t ctrl; | |
2630 | ||
2631 | DEBUGFUNC("e1000_force_mac_fc"); | |
2632 | ||
2633 | /* Get the current configuration of the Device Control Register */ | |
2634 | ctrl = E1000_READ_REG(hw, CTRL); | |
2635 | ||
2636 | /* Because we didn't get link via the internal auto-negotiation | |
2637 | * mechanism (we either forced link or we got link via PHY | |
2638 | * auto-neg), we have to manually enable/disable transmit an | |
2639 | * receive flow control. | |
2640 | * | |
2641 | * The "Case" statement below enables/disable flow control | |
2642 | * according to the "hw->fc" parameter. | |
2643 | * | |
2644 | * The possible values of the "fc" parameter are: | |
2645 | * 0: Flow control is completely disabled | |
2646 | * 1: Rx flow control is enabled (we can receive pause | |
2647 | * frames but not send pause frames). | |
2648 | * 2: Tx flow control is enabled (we can send pause frames | |
2649 | * frames but we do not receive pause frames). | |
2650 | * 3: Both Rx and TX flow control (symmetric) is enabled. | |
2651 | * other: No other values should be possible at this point. | |
2652 | */ | |
2653 | ||
2654 | switch (hw->fc) { | |
11241b10 | 2655 | case E1000_FC_NONE: |
1da177e4 LT |
2656 | ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); |
2657 | break; | |
11241b10 | 2658 | case E1000_FC_RX_PAUSE: |
1da177e4 LT |
2659 | ctrl &= (~E1000_CTRL_TFCE); |
2660 | ctrl |= E1000_CTRL_RFCE; | |
2661 | break; | |
11241b10 | 2662 | case E1000_FC_TX_PAUSE: |
1da177e4 LT |
2663 | ctrl &= (~E1000_CTRL_RFCE); |
2664 | ctrl |= E1000_CTRL_TFCE; | |
2665 | break; | |
11241b10 | 2666 | case E1000_FC_FULL: |
1da177e4 LT |
2667 | ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); |
2668 | break; | |
2669 | default: | |
2670 | DEBUGOUT("Flow control param set incorrectly\n"); | |
2671 | return -E1000_ERR_CONFIG; | |
2672 | } | |
2673 | ||
2674 | /* Disable TX Flow Control for 82542 (rev 2.0) */ | |
8fc897b0 | 2675 | if (hw->mac_type == e1000_82542_rev2_0) |
1da177e4 LT |
2676 | ctrl &= (~E1000_CTRL_TFCE); |
2677 | ||
2678 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2679 | return E1000_SUCCESS; | |
2680 | } | |
2681 | ||
2682 | /****************************************************************************** | |
2683 | * Configures flow control settings after link is established | |
2684 | * | |
2685 | * hw - Struct containing variables accessed by shared code | |
2686 | * | |
2687 | * Should be called immediately after a valid link has been established. | |
2688 | * Forces MAC flow control settings if link was forced. When in MII/GMII mode | |
2689 | * and autonegotiation is enabled, the MAC flow control settings will be set | |
2690 | * based on the flow control negotiated by the PHY. In TBI mode, the TFCE | |
2691 | * and RFCE bits will be automaticaly set to the negotiated flow control mode. | |
2692 | *****************************************************************************/ | |
3ad2cc67 | 2693 | static int32_t |
1da177e4 LT |
2694 | e1000_config_fc_after_link_up(struct e1000_hw *hw) |
2695 | { | |
2696 | int32_t ret_val; | |
2697 | uint16_t mii_status_reg; | |
2698 | uint16_t mii_nway_adv_reg; | |
2699 | uint16_t mii_nway_lp_ability_reg; | |
2700 | uint16_t speed; | |
2701 | uint16_t duplex; | |
2702 | ||
2703 | DEBUGFUNC("e1000_config_fc_after_link_up"); | |
2704 | ||
2705 | /* Check for the case where we have fiber media and auto-neg failed | |
2706 | * so we had to force link. In this case, we need to force the | |
2707 | * configuration of the MAC to match the "fc" parameter. | |
2708 | */ | |
8fc897b0 AK |
2709 | if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) || |
2710 | ((hw->media_type == e1000_media_type_internal_serdes) && | |
2711 | (hw->autoneg_failed)) || | |
2712 | ((hw->media_type == e1000_media_type_copper) && (!hw->autoneg))) { | |
1da177e4 | 2713 | ret_val = e1000_force_mac_fc(hw); |
8fc897b0 | 2714 | if (ret_val) { |
1da177e4 LT |
2715 | DEBUGOUT("Error forcing flow control settings\n"); |
2716 | return ret_val; | |
2717 | } | |
2718 | } | |
2719 | ||
2720 | /* Check for the case where we have copper media and auto-neg is | |
2721 | * enabled. In this case, we need to check and see if Auto-Neg | |
2722 | * has completed, and if so, how the PHY and link partner has | |
2723 | * flow control configured. | |
2724 | */ | |
8fc897b0 | 2725 | if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { |
1da177e4 LT |
2726 | /* Read the MII Status Register and check to see if AutoNeg |
2727 | * has completed. We read this twice because this reg has | |
2728 | * some "sticky" (latched) bits. | |
2729 | */ | |
2730 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2731 | if (ret_val) |
1da177e4 LT |
2732 | return ret_val; |
2733 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2734 | if (ret_val) |
1da177e4 LT |
2735 | return ret_val; |
2736 | ||
8fc897b0 | 2737 | if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { |
1da177e4 LT |
2738 | /* The AutoNeg process has completed, so we now need to |
2739 | * read both the Auto Negotiation Advertisement Register | |
2740 | * (Address 4) and the Auto_Negotiation Base Page Ability | |
2741 | * Register (Address 5) to determine how flow control was | |
2742 | * negotiated. | |
2743 | */ | |
2744 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, | |
2745 | &mii_nway_adv_reg); | |
8fc897b0 | 2746 | if (ret_val) |
1da177e4 LT |
2747 | return ret_val; |
2748 | ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, | |
2749 | &mii_nway_lp_ability_reg); | |
8fc897b0 | 2750 | if (ret_val) |
1da177e4 LT |
2751 | return ret_val; |
2752 | ||
2753 | /* Two bits in the Auto Negotiation Advertisement Register | |
2754 | * (Address 4) and two bits in the Auto Negotiation Base | |
2755 | * Page Ability Register (Address 5) determine flow control | |
2756 | * for both the PHY and the link partner. The following | |
2757 | * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, | |
2758 | * 1999, describes these PAUSE resolution bits and how flow | |
2759 | * control is determined based upon these settings. | |
2760 | * NOTE: DC = Don't Care | |
2761 | * | |
2762 | * LOCAL DEVICE | LINK PARTNER | |
2763 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution | |
2764 | *-------|---------|-------|---------|-------------------- | |
11241b10 JK |
2765 | * 0 | 0 | DC | DC | E1000_FC_NONE |
2766 | * 0 | 1 | 0 | DC | E1000_FC_NONE | |
2767 | * 0 | 1 | 1 | 0 | E1000_FC_NONE | |
2768 | * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE | |
2769 | * 1 | 0 | 0 | DC | E1000_FC_NONE | |
2770 | * 1 | DC | 1 | DC | E1000_FC_FULL | |
2771 | * 1 | 1 | 0 | 0 | E1000_FC_NONE | |
2772 | * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE | |
1da177e4 LT |
2773 | * |
2774 | */ | |
2775 | /* Are both PAUSE bits set to 1? If so, this implies | |
2776 | * Symmetric Flow Control is enabled at both ends. The | |
2777 | * ASM_DIR bits are irrelevant per the spec. | |
2778 | * | |
2779 | * For Symmetric Flow Control: | |
2780 | * | |
2781 | * LOCAL DEVICE | LINK PARTNER | |
2782 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2783 | *-------|---------|-------|---------|-------------------- | |
11241b10 | 2784 | * 1 | DC | 1 | DC | E1000_FC_FULL |
1da177e4 LT |
2785 | * |
2786 | */ | |
8fc897b0 AK |
2787 | if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2788 | (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { | |
1da177e4 LT |
2789 | /* Now we need to check if the user selected RX ONLY |
2790 | * of pause frames. In this case, we had to advertise | |
2791 | * FULL flow control because we could not advertise RX | |
2792 | * ONLY. Hence, we must now check to see if we need to | |
2793 | * turn OFF the TRANSMISSION of PAUSE frames. | |
2794 | */ | |
11241b10 JK |
2795 | if (hw->original_fc == E1000_FC_FULL) { |
2796 | hw->fc = E1000_FC_FULL; | |
a42a507c | 2797 | DEBUGOUT("Flow Control = FULL.\n"); |
1da177e4 | 2798 | } else { |
11241b10 | 2799 | hw->fc = E1000_FC_RX_PAUSE; |
a42a507c | 2800 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2801 | } |
2802 | } | |
2803 | /* For receiving PAUSE frames ONLY. | |
2804 | * | |
2805 | * LOCAL DEVICE | LINK PARTNER | |
2806 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2807 | *-------|---------|-------|---------|-------------------- | |
11241b10 | 2808 | * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE |
1da177e4 LT |
2809 | * |
2810 | */ | |
8fc897b0 AK |
2811 | else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2812 | (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && | |
2813 | (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && | |
2814 | (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { | |
11241b10 | 2815 | hw->fc = E1000_FC_TX_PAUSE; |
a42a507c | 2816 | DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); |
1da177e4 LT |
2817 | } |
2818 | /* For transmitting PAUSE frames ONLY. | |
2819 | * | |
2820 | * LOCAL DEVICE | LINK PARTNER | |
2821 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2822 | *-------|---------|-------|---------|-------------------- | |
11241b10 | 2823 | * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE |
1da177e4 LT |
2824 | * |
2825 | */ | |
8fc897b0 AK |
2826 | else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2827 | (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && | |
2828 | !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && | |
2829 | (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { | |
11241b10 | 2830 | hw->fc = E1000_FC_RX_PAUSE; |
a42a507c | 2831 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2832 | } |
2833 | /* Per the IEEE spec, at this point flow control should be | |
2834 | * disabled. However, we want to consider that we could | |
2835 | * be connected to a legacy switch that doesn't advertise | |
2836 | * desired flow control, but can be forced on the link | |
2837 | * partner. So if we advertised no flow control, that is | |
2838 | * what we will resolve to. If we advertised some kind of | |
2839 | * receive capability (Rx Pause Only or Full Flow Control) | |
2840 | * and the link partner advertised none, we will configure | |
2841 | * ourselves to enable Rx Flow Control only. We can do | |
2842 | * this safely for two reasons: If the link partner really | |
2843 | * didn't want flow control enabled, and we enable Rx, no | |
2844 | * harm done since we won't be receiving any PAUSE frames | |
2845 | * anyway. If the intent on the link partner was to have | |
2846 | * flow control enabled, then by us enabling RX only, we | |
2847 | * can at least receive pause frames and process them. | |
2848 | * This is a good idea because in most cases, since we are | |
2849 | * predominantly a server NIC, more times than not we will | |
2850 | * be asked to delay transmission of packets than asking | |
2851 | * our link partner to pause transmission of frames. | |
2852 | */ | |
11241b10 JK |
2853 | else if ((hw->original_fc == E1000_FC_NONE || |
2854 | hw->original_fc == E1000_FC_TX_PAUSE) || | |
8fc897b0 | 2855 | hw->fc_strict_ieee) { |
11241b10 | 2856 | hw->fc = E1000_FC_NONE; |
a42a507c | 2857 | DEBUGOUT("Flow Control = NONE.\n"); |
1da177e4 | 2858 | } else { |
11241b10 | 2859 | hw->fc = E1000_FC_RX_PAUSE; |
a42a507c | 2860 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2861 | } |
2862 | ||
2863 | /* Now we need to do one last check... If we auto- | |
2864 | * negotiated to HALF DUPLEX, flow control should not be | |
2865 | * enabled per IEEE 802.3 spec. | |
2866 | */ | |
2867 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); | |
8fc897b0 | 2868 | if (ret_val) { |
1da177e4 LT |
2869 | DEBUGOUT("Error getting link speed and duplex\n"); |
2870 | return ret_val; | |
2871 | } | |
2872 | ||
8fc897b0 | 2873 | if (duplex == HALF_DUPLEX) |
11241b10 | 2874 | hw->fc = E1000_FC_NONE; |
1da177e4 LT |
2875 | |
2876 | /* Now we call a subroutine to actually force the MAC | |
2877 | * controller to use the correct flow control settings. | |
2878 | */ | |
2879 | ret_val = e1000_force_mac_fc(hw); | |
8fc897b0 | 2880 | if (ret_val) { |
1da177e4 LT |
2881 | DEBUGOUT("Error forcing flow control settings\n"); |
2882 | return ret_val; | |
2883 | } | |
2884 | } else { | |
a42a507c | 2885 | DEBUGOUT("Copper PHY and Auto Neg has not completed.\n"); |
1da177e4 LT |
2886 | } |
2887 | } | |
2888 | return E1000_SUCCESS; | |
2889 | } | |
2890 | ||
2891 | /****************************************************************************** | |
2892 | * Checks to see if the link status of the hardware has changed. | |
2893 | * | |
2894 | * hw - Struct containing variables accessed by shared code | |
2895 | * | |
2896 | * Called by any function that needs to check the link status of the adapter. | |
2897 | *****************************************************************************/ | |
2898 | int32_t | |
2899 | e1000_check_for_link(struct e1000_hw *hw) | |
2900 | { | |
2901 | uint32_t rxcw = 0; | |
2902 | uint32_t ctrl; | |
2903 | uint32_t status; | |
2904 | uint32_t rctl; | |
2905 | uint32_t icr; | |
2906 | uint32_t signal = 0; | |
2907 | int32_t ret_val; | |
2908 | uint16_t phy_data; | |
2909 | ||
2910 | DEBUGFUNC("e1000_check_for_link"); | |
2911 | ||
2912 | ctrl = E1000_READ_REG(hw, CTRL); | |
2913 | status = E1000_READ_REG(hw, STATUS); | |
2914 | ||
2915 | /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be | |
2916 | * set when the optics detect a signal. On older adapters, it will be | |
2917 | * cleared when there is a signal. This applies to fiber media only. | |
2918 | */ | |
8fc897b0 AK |
2919 | if ((hw->media_type == e1000_media_type_fiber) || |
2920 | (hw->media_type == e1000_media_type_internal_serdes)) { | |
1da177e4 LT |
2921 | rxcw = E1000_READ_REG(hw, RXCW); |
2922 | ||
8fc897b0 | 2923 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 | 2924 | signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; |
8fc897b0 | 2925 | if (status & E1000_STATUS_LU) |
1da177e4 LT |
2926 | hw->get_link_status = FALSE; |
2927 | } | |
2928 | } | |
2929 | ||
2930 | /* If we have a copper PHY then we only want to go out to the PHY | |
2931 | * registers to see if Auto-Neg has completed and/or if our link | |
2932 | * status has changed. The get_link_status flag will be set if we | |
2933 | * receive a Link Status Change interrupt or we have Rx Sequence | |
2934 | * Errors. | |
2935 | */ | |
8fc897b0 | 2936 | if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { |
1da177e4 LT |
2937 | /* First we want to see if the MII Status Register reports |
2938 | * link. If so, then we want to get the current speed/duplex | |
2939 | * of the PHY. | |
2940 | * Read the register twice since the link bit is sticky. | |
2941 | */ | |
2942 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2943 | if (ret_val) |
1da177e4 LT |
2944 | return ret_val; |
2945 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2946 | if (ret_val) |
1da177e4 LT |
2947 | return ret_val; |
2948 | ||
8fc897b0 | 2949 | if (phy_data & MII_SR_LINK_STATUS) { |
1da177e4 LT |
2950 | hw->get_link_status = FALSE; |
2951 | /* Check if there was DownShift, must be checked immediately after | |
2952 | * link-up */ | |
2953 | e1000_check_downshift(hw); | |
2954 | ||
2955 | /* If we are on 82544 or 82543 silicon and speed/duplex | |
2956 | * are forced to 10H or 10F, then we will implement the polarity | |
2957 | * reversal workaround. We disable interrupts first, and upon | |
2958 | * returning, place the devices interrupt state to its previous | |
2959 | * value except for the link status change interrupt which will | |
2960 | * happen due to the execution of this workaround. | |
2961 | */ | |
2962 | ||
8fc897b0 AK |
2963 | if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && |
2964 | (!hw->autoneg) && | |
2965 | (hw->forced_speed_duplex == e1000_10_full || | |
2966 | hw->forced_speed_duplex == e1000_10_half)) { | |
1da177e4 LT |
2967 | E1000_WRITE_REG(hw, IMC, 0xffffffff); |
2968 | ret_val = e1000_polarity_reversal_workaround(hw); | |
2969 | icr = E1000_READ_REG(hw, ICR); | |
2970 | E1000_WRITE_REG(hw, ICS, (icr & ~E1000_ICS_LSC)); | |
2971 | E1000_WRITE_REG(hw, IMS, IMS_ENABLE_MASK); | |
2972 | } | |
2973 | ||
2974 | } else { | |
2975 | /* No link detected */ | |
2976 | e1000_config_dsp_after_link_change(hw, FALSE); | |
2977 | return 0; | |
2978 | } | |
2979 | ||
2980 | /* If we are forcing speed/duplex, then we simply return since | |
2981 | * we have already determined whether we have link or not. | |
2982 | */ | |
8fc897b0 | 2983 | if (!hw->autoneg) return -E1000_ERR_CONFIG; |
1da177e4 LT |
2984 | |
2985 | /* optimize the dsp settings for the igp phy */ | |
2986 | e1000_config_dsp_after_link_change(hw, TRUE); | |
2987 | ||
2988 | /* We have a M88E1000 PHY and Auto-Neg is enabled. If we | |
2989 | * have Si on board that is 82544 or newer, Auto | |
2990 | * Speed Detection takes care of MAC speed/duplex | |
2991 | * configuration. So we only need to configure Collision | |
2992 | * Distance in the MAC. Otherwise, we need to force | |
2993 | * speed/duplex on the MAC to the current PHY speed/duplex | |
2994 | * settings. | |
2995 | */ | |
8fc897b0 | 2996 | if (hw->mac_type >= e1000_82544) |
1da177e4 LT |
2997 | e1000_config_collision_dist(hw); |
2998 | else { | |
2999 | ret_val = e1000_config_mac_to_phy(hw); | |
8fc897b0 | 3000 | if (ret_val) { |
1da177e4 LT |
3001 | DEBUGOUT("Error configuring MAC to PHY settings\n"); |
3002 | return ret_val; | |
3003 | } | |
3004 | } | |
3005 | ||
3006 | /* Configure Flow Control now that Auto-Neg has completed. First, we | |
3007 | * need to restore the desired flow control settings because we may | |
3008 | * have had to re-autoneg with a different link partner. | |
3009 | */ | |
3010 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 3011 | if (ret_val) { |
1da177e4 LT |
3012 | DEBUGOUT("Error configuring flow control\n"); |
3013 | return ret_val; | |
3014 | } | |
3015 | ||
3016 | /* At this point we know that we are on copper and we have | |
3017 | * auto-negotiated link. These are conditions for checking the link | |
3018 | * partner capability register. We use the link speed to determine if | |
3019 | * TBI compatibility needs to be turned on or off. If the link is not | |
3020 | * at gigabit speed, then TBI compatibility is not needed. If we are | |
3021 | * at gigabit speed, we turn on TBI compatibility. | |
3022 | */ | |
8fc897b0 | 3023 | if (hw->tbi_compatibility_en) { |
1da177e4 | 3024 | uint16_t speed, duplex; |
592600a0 AK |
3025 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); |
3026 | if (ret_val) { | |
3027 | DEBUGOUT("Error getting link speed and duplex\n"); | |
3028 | return ret_val; | |
3029 | } | |
3030 | if (speed != SPEED_1000) { | |
1da177e4 LT |
3031 | /* If link speed is not set to gigabit speed, we do not need |
3032 | * to enable TBI compatibility. | |
3033 | */ | |
8fc897b0 | 3034 | if (hw->tbi_compatibility_on) { |
1da177e4 LT |
3035 | /* If we previously were in the mode, turn it off. */ |
3036 | rctl = E1000_READ_REG(hw, RCTL); | |
3037 | rctl &= ~E1000_RCTL_SBP; | |
3038 | E1000_WRITE_REG(hw, RCTL, rctl); | |
3039 | hw->tbi_compatibility_on = FALSE; | |
3040 | } | |
3041 | } else { | |
3042 | /* If TBI compatibility is was previously off, turn it on. For | |
3043 | * compatibility with a TBI link partner, we will store bad | |
3044 | * packets. Some frames have an additional byte on the end and | |
3045 | * will look like CRC errors to to the hardware. | |
3046 | */ | |
8fc897b0 | 3047 | if (!hw->tbi_compatibility_on) { |
1da177e4 LT |
3048 | hw->tbi_compatibility_on = TRUE; |
3049 | rctl = E1000_READ_REG(hw, RCTL); | |
3050 | rctl |= E1000_RCTL_SBP; | |
3051 | E1000_WRITE_REG(hw, RCTL, rctl); | |
3052 | } | |
3053 | } | |
3054 | } | |
3055 | } | |
3056 | /* If we don't have link (auto-negotiation failed or link partner cannot | |
3057 | * auto-negotiate), the cable is plugged in (we have signal), and our | |
3058 | * link partner is not trying to auto-negotiate with us (we are receiving | |
3059 | * idles or data), we need to force link up. We also need to give | |
3060 | * auto-negotiation time to complete, in case the cable was just plugged | |
3061 | * in. The autoneg_failed flag does this. | |
3062 | */ | |
8fc897b0 | 3063 | else if ((((hw->media_type == e1000_media_type_fiber) && |
1da177e4 | 3064 | ((ctrl & E1000_CTRL_SWDPIN1) == signal)) || |
8fc897b0 AK |
3065 | (hw->media_type == e1000_media_type_internal_serdes)) && |
3066 | (!(status & E1000_STATUS_LU)) && | |
3067 | (!(rxcw & E1000_RXCW_C))) { | |
3068 | if (hw->autoneg_failed == 0) { | |
1da177e4 LT |
3069 | hw->autoneg_failed = 1; |
3070 | return 0; | |
3071 | } | |
a42a507c | 3072 | DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); |
1da177e4 LT |
3073 | |
3074 | /* Disable auto-negotiation in the TXCW register */ | |
3075 | E1000_WRITE_REG(hw, TXCW, (hw->txcw & ~E1000_TXCW_ANE)); | |
3076 | ||
3077 | /* Force link-up and also force full-duplex. */ | |
3078 | ctrl = E1000_READ_REG(hw, CTRL); | |
3079 | ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); | |
3080 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3081 | ||
3082 | /* Configure Flow Control after forcing link up. */ | |
3083 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 3084 | if (ret_val) { |
1da177e4 LT |
3085 | DEBUGOUT("Error configuring flow control\n"); |
3086 | return ret_val; | |
3087 | } | |
3088 | } | |
3089 | /* If we are forcing link and we are receiving /C/ ordered sets, re-enable | |
3090 | * auto-negotiation in the TXCW register and disable forced link in the | |
3091 | * Device Control register in an attempt to auto-negotiate with our link | |
3092 | * partner. | |
3093 | */ | |
8fc897b0 AK |
3094 | else if (((hw->media_type == e1000_media_type_fiber) || |
3095 | (hw->media_type == e1000_media_type_internal_serdes)) && | |
3096 | (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { | |
a42a507c | 3097 | DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); |
1da177e4 LT |
3098 | E1000_WRITE_REG(hw, TXCW, hw->txcw); |
3099 | E1000_WRITE_REG(hw, CTRL, (ctrl & ~E1000_CTRL_SLU)); | |
3100 | ||
3101 | hw->serdes_link_down = FALSE; | |
3102 | } | |
3103 | /* If we force link for non-auto-negotiation switch, check link status | |
3104 | * based on MAC synchronization for internal serdes media type. | |
3105 | */ | |
8fc897b0 AK |
3106 | else if ((hw->media_type == e1000_media_type_internal_serdes) && |
3107 | !(E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) { | |
1da177e4 LT |
3108 | /* SYNCH bit and IV bit are sticky. */ |
3109 | udelay(10); | |
8fc897b0 AK |
3110 | if (E1000_RXCW_SYNCH & E1000_READ_REG(hw, RXCW)) { |
3111 | if (!(rxcw & E1000_RXCW_IV)) { | |
1da177e4 LT |
3112 | hw->serdes_link_down = FALSE; |
3113 | DEBUGOUT("SERDES: Link is up.\n"); | |
3114 | } | |
3115 | } else { | |
3116 | hw->serdes_link_down = TRUE; | |
3117 | DEBUGOUT("SERDES: Link is down.\n"); | |
3118 | } | |
3119 | } | |
8fc897b0 AK |
3120 | if ((hw->media_type == e1000_media_type_internal_serdes) && |
3121 | (E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) { | |
1da177e4 LT |
3122 | hw->serdes_link_down = !(E1000_STATUS_LU & E1000_READ_REG(hw, STATUS)); |
3123 | } | |
3124 | return E1000_SUCCESS; | |
3125 | } | |
3126 | ||
3127 | /****************************************************************************** | |
3128 | * Detects the current speed and duplex settings of the hardware. | |
3129 | * | |
3130 | * hw - Struct containing variables accessed by shared code | |
3131 | * speed - Speed of the connection | |
3132 | * duplex - Duplex setting of the connection | |
3133 | *****************************************************************************/ | |
3134 | int32_t | |
3135 | e1000_get_speed_and_duplex(struct e1000_hw *hw, | |
3136 | uint16_t *speed, | |
3137 | uint16_t *duplex) | |
3138 | { | |
3139 | uint32_t status; | |
3140 | int32_t ret_val; | |
3141 | uint16_t phy_data; | |
3142 | ||
3143 | DEBUGFUNC("e1000_get_speed_and_duplex"); | |
3144 | ||
8fc897b0 | 3145 | if (hw->mac_type >= e1000_82543) { |
1da177e4 | 3146 | status = E1000_READ_REG(hw, STATUS); |
8fc897b0 | 3147 | if (status & E1000_STATUS_SPEED_1000) { |
1da177e4 LT |
3148 | *speed = SPEED_1000; |
3149 | DEBUGOUT("1000 Mbs, "); | |
8fc897b0 | 3150 | } else if (status & E1000_STATUS_SPEED_100) { |
1da177e4 LT |
3151 | *speed = SPEED_100; |
3152 | DEBUGOUT("100 Mbs, "); | |
3153 | } else { | |
3154 | *speed = SPEED_10; | |
3155 | DEBUGOUT("10 Mbs, "); | |
3156 | } | |
3157 | ||
8fc897b0 | 3158 | if (status & E1000_STATUS_FD) { |
1da177e4 | 3159 | *duplex = FULL_DUPLEX; |
a42a507c | 3160 | DEBUGOUT("Full Duplex\n"); |
1da177e4 LT |
3161 | } else { |
3162 | *duplex = HALF_DUPLEX; | |
a42a507c | 3163 | DEBUGOUT(" Half Duplex\n"); |
1da177e4 LT |
3164 | } |
3165 | } else { | |
a42a507c | 3166 | DEBUGOUT("1000 Mbs, Full Duplex\n"); |
1da177e4 LT |
3167 | *speed = SPEED_1000; |
3168 | *duplex = FULL_DUPLEX; | |
3169 | } | |
3170 | ||
3171 | /* IGP01 PHY may advertise full duplex operation after speed downgrade even | |
3172 | * if it is operating at half duplex. Here we set the duplex settings to | |
3173 | * match the duplex in the link partner's capabilities. | |
3174 | */ | |
8fc897b0 | 3175 | if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { |
1da177e4 | 3176 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); |
8fc897b0 | 3177 | if (ret_val) |
1da177e4 LT |
3178 | return ret_val; |
3179 | ||
8fc897b0 | 3180 | if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) |
1da177e4 LT |
3181 | *duplex = HALF_DUPLEX; |
3182 | else { | |
3183 | ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); | |
8fc897b0 | 3184 | if (ret_val) |
1da177e4 | 3185 | return ret_val; |
8fc897b0 | 3186 | if ((*speed == SPEED_100 && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) || |
1da177e4 LT |
3187 | (*speed == SPEED_10 && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) |
3188 | *duplex = HALF_DUPLEX; | |
3189 | } | |
3190 | } | |
3191 | ||
76c224bc | 3192 | if ((hw->mac_type == e1000_80003es2lan) && |
6418ecc6 JK |
3193 | (hw->media_type == e1000_media_type_copper)) { |
3194 | if (*speed == SPEED_1000) | |
3195 | ret_val = e1000_configure_kmrn_for_1000(hw); | |
3196 | else | |
cd94dd0b AK |
3197 | ret_val = e1000_configure_kmrn_for_10_100(hw, *duplex); |
3198 | if (ret_val) | |
3199 | return ret_val; | |
3200 | } | |
3201 | ||
3202 | if ((hw->phy_type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { | |
3203 | ret_val = e1000_kumeran_lock_loss_workaround(hw); | |
6418ecc6 JK |
3204 | if (ret_val) |
3205 | return ret_val; | |
3206 | } | |
3207 | ||
1da177e4 LT |
3208 | return E1000_SUCCESS; |
3209 | } | |
3210 | ||
3211 | /****************************************************************************** | |
3212 | * Blocks until autoneg completes or times out (~4.5 seconds) | |
3213 | * | |
3214 | * hw - Struct containing variables accessed by shared code | |
3215 | ******************************************************************************/ | |
3ad2cc67 | 3216 | static int32_t |
1da177e4 LT |
3217 | e1000_wait_autoneg(struct e1000_hw *hw) |
3218 | { | |
3219 | int32_t ret_val; | |
3220 | uint16_t i; | |
3221 | uint16_t phy_data; | |
3222 | ||
3223 | DEBUGFUNC("e1000_wait_autoneg"); | |
3224 | DEBUGOUT("Waiting for Auto-Neg to complete.\n"); | |
3225 | ||
3226 | /* We will wait for autoneg to complete or 4.5 seconds to expire. */ | |
8fc897b0 | 3227 | for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { |
1da177e4 LT |
3228 | /* Read the MII Status Register and wait for Auto-Neg |
3229 | * Complete bit to be set. | |
3230 | */ | |
3231 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 3232 | if (ret_val) |
1da177e4 LT |
3233 | return ret_val; |
3234 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 3235 | if (ret_val) |
1da177e4 | 3236 | return ret_val; |
8fc897b0 | 3237 | if (phy_data & MII_SR_AUTONEG_COMPLETE) { |
1da177e4 LT |
3238 | return E1000_SUCCESS; |
3239 | } | |
f8ec4733 | 3240 | msleep(100); |
1da177e4 LT |
3241 | } |
3242 | return E1000_SUCCESS; | |
3243 | } | |
3244 | ||
3245 | /****************************************************************************** | |
3246 | * Raises the Management Data Clock | |
3247 | * | |
3248 | * hw - Struct containing variables accessed by shared code | |
3249 | * ctrl - Device control register's current value | |
3250 | ******************************************************************************/ | |
3251 | static void | |
3252 | e1000_raise_mdi_clk(struct e1000_hw *hw, | |
3253 | uint32_t *ctrl) | |
3254 | { | |
3255 | /* Raise the clock input to the Management Data Clock (by setting the MDC | |
3256 | * bit), and then delay 10 microseconds. | |
3257 | */ | |
3258 | E1000_WRITE_REG(hw, CTRL, (*ctrl | E1000_CTRL_MDC)); | |
3259 | E1000_WRITE_FLUSH(hw); | |
3260 | udelay(10); | |
3261 | } | |
3262 | ||
3263 | /****************************************************************************** | |
3264 | * Lowers the Management Data Clock | |
3265 | * | |
3266 | * hw - Struct containing variables accessed by shared code | |
3267 | * ctrl - Device control register's current value | |
3268 | ******************************************************************************/ | |
3269 | static void | |
3270 | e1000_lower_mdi_clk(struct e1000_hw *hw, | |
3271 | uint32_t *ctrl) | |
3272 | { | |
3273 | /* Lower the clock input to the Management Data Clock (by clearing the MDC | |
3274 | * bit), and then delay 10 microseconds. | |
3275 | */ | |
3276 | E1000_WRITE_REG(hw, CTRL, (*ctrl & ~E1000_CTRL_MDC)); | |
3277 | E1000_WRITE_FLUSH(hw); | |
3278 | udelay(10); | |
3279 | } | |
3280 | ||
3281 | /****************************************************************************** | |
3282 | * Shifts data bits out to the PHY | |
3283 | * | |
3284 | * hw - Struct containing variables accessed by shared code | |
3285 | * data - Data to send out to the PHY | |
3286 | * count - Number of bits to shift out | |
3287 | * | |
3288 | * Bits are shifted out in MSB to LSB order. | |
3289 | ******************************************************************************/ | |
3290 | static void | |
3291 | e1000_shift_out_mdi_bits(struct e1000_hw *hw, | |
3292 | uint32_t data, | |
3293 | uint16_t count) | |
3294 | { | |
3295 | uint32_t ctrl; | |
3296 | uint32_t mask; | |
3297 | ||
3298 | /* We need to shift "count" number of bits out to the PHY. So, the value | |
3299 | * in the "data" parameter will be shifted out to the PHY one bit at a | |
3300 | * time. In order to do this, "data" must be broken down into bits. | |
3301 | */ | |
3302 | mask = 0x01; | |
3303 | mask <<= (count - 1); | |
3304 | ||
3305 | ctrl = E1000_READ_REG(hw, CTRL); | |
3306 | ||
3307 | /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ | |
3308 | ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); | |
3309 | ||
8fc897b0 | 3310 | while (mask) { |
1da177e4 LT |
3311 | /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and |
3312 | * then raising and lowering the Management Data Clock. A "0" is | |
3313 | * shifted out to the PHY by setting the MDIO bit to "0" and then | |
3314 | * raising and lowering the clock. | |
3315 | */ | |
8fc897b0 AK |
3316 | if (data & mask) |
3317 | ctrl |= E1000_CTRL_MDIO; | |
3318 | else | |
3319 | ctrl &= ~E1000_CTRL_MDIO; | |
1da177e4 LT |
3320 | |
3321 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3322 | E1000_WRITE_FLUSH(hw); | |
3323 | ||
3324 | udelay(10); | |
3325 | ||
3326 | e1000_raise_mdi_clk(hw, &ctrl); | |
3327 | e1000_lower_mdi_clk(hw, &ctrl); | |
3328 | ||
3329 | mask = mask >> 1; | |
3330 | } | |
3331 | } | |
3332 | ||
3333 | /****************************************************************************** | |
3334 | * Shifts data bits in from the PHY | |
3335 | * | |
3336 | * hw - Struct containing variables accessed by shared code | |
3337 | * | |
3338 | * Bits are shifted in in MSB to LSB order. | |
3339 | ******************************************************************************/ | |
3340 | static uint16_t | |
3341 | e1000_shift_in_mdi_bits(struct e1000_hw *hw) | |
3342 | { | |
3343 | uint32_t ctrl; | |
3344 | uint16_t data = 0; | |
3345 | uint8_t i; | |
3346 | ||
3347 | /* In order to read a register from the PHY, we need to shift in a total | |
3348 | * of 18 bits from the PHY. The first two bit (turnaround) times are used | |
3349 | * to avoid contention on the MDIO pin when a read operation is performed. | |
3350 | * These two bits are ignored by us and thrown away. Bits are "shifted in" | |
3351 | * by raising the input to the Management Data Clock (setting the MDC bit), | |
3352 | * and then reading the value of the MDIO bit. | |
3353 | */ | |
3354 | ctrl = E1000_READ_REG(hw, CTRL); | |
3355 | ||
3356 | /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ | |
3357 | ctrl &= ~E1000_CTRL_MDIO_DIR; | |
3358 | ctrl &= ~E1000_CTRL_MDIO; | |
3359 | ||
3360 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3361 | E1000_WRITE_FLUSH(hw); | |
3362 | ||
3363 | /* Raise and Lower the clock before reading in the data. This accounts for | |
3364 | * the turnaround bits. The first clock occurred when we clocked out the | |
3365 | * last bit of the Register Address. | |
3366 | */ | |
3367 | e1000_raise_mdi_clk(hw, &ctrl); | |
3368 | e1000_lower_mdi_clk(hw, &ctrl); | |
3369 | ||
8fc897b0 | 3370 | for (data = 0, i = 0; i < 16; i++) { |
1da177e4 LT |
3371 | data = data << 1; |
3372 | e1000_raise_mdi_clk(hw, &ctrl); | |
3373 | ctrl = E1000_READ_REG(hw, CTRL); | |
3374 | /* Check to see if we shifted in a "1". */ | |
8fc897b0 AK |
3375 | if (ctrl & E1000_CTRL_MDIO) |
3376 | data |= 1; | |
1da177e4 LT |
3377 | e1000_lower_mdi_clk(hw, &ctrl); |
3378 | } | |
3379 | ||
3380 | e1000_raise_mdi_clk(hw, &ctrl); | |
3381 | e1000_lower_mdi_clk(hw, &ctrl); | |
3382 | ||
3383 | return data; | |
3384 | } | |
3385 | ||
e4c780b1 | 3386 | static int32_t |
6418ecc6 JK |
3387 | e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask) |
3388 | { | |
3389 | uint32_t swfw_sync = 0; | |
3390 | uint32_t swmask = mask; | |
3391 | uint32_t fwmask = mask << 16; | |
3392 | int32_t timeout = 200; | |
3393 | ||
3394 | DEBUGFUNC("e1000_swfw_sync_acquire"); | |
3395 | ||
cd94dd0b AK |
3396 | if (hw->swfwhw_semaphore_present) |
3397 | return e1000_get_software_flag(hw); | |
3398 | ||
6418ecc6 JK |
3399 | if (!hw->swfw_sync_present) |
3400 | return e1000_get_hw_eeprom_semaphore(hw); | |
3401 | ||
8fc897b0 | 3402 | while (timeout) { |
6418ecc6 JK |
3403 | if (e1000_get_hw_eeprom_semaphore(hw)) |
3404 | return -E1000_ERR_SWFW_SYNC; | |
3405 | ||
3406 | swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); | |
3407 | if (!(swfw_sync & (fwmask | swmask))) { | |
3408 | break; | |
3409 | } | |
3410 | ||
3411 | /* firmware currently using resource (fwmask) */ | |
3412 | /* or other software thread currently using resource (swmask) */ | |
3413 | e1000_put_hw_eeprom_semaphore(hw); | |
f8ec4733 | 3414 | mdelay(5); |
6418ecc6 JK |
3415 | timeout--; |
3416 | } | |
3417 | ||
3418 | if (!timeout) { | |
3419 | DEBUGOUT("Driver can't access resource, SW_FW_SYNC timeout.\n"); | |
3420 | return -E1000_ERR_SWFW_SYNC; | |
3421 | } | |
3422 | ||
3423 | swfw_sync |= swmask; | |
3424 | E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync); | |
3425 | ||
3426 | e1000_put_hw_eeprom_semaphore(hw); | |
3427 | return E1000_SUCCESS; | |
3428 | } | |
3429 | ||
e4c780b1 | 3430 | static void |
6418ecc6 JK |
3431 | e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask) |
3432 | { | |
3433 | uint32_t swfw_sync; | |
3434 | uint32_t swmask = mask; | |
3435 | ||
3436 | DEBUGFUNC("e1000_swfw_sync_release"); | |
3437 | ||
cd94dd0b AK |
3438 | if (hw->swfwhw_semaphore_present) { |
3439 | e1000_release_software_flag(hw); | |
3440 | return; | |
3441 | } | |
3442 | ||
6418ecc6 JK |
3443 | if (!hw->swfw_sync_present) { |
3444 | e1000_put_hw_eeprom_semaphore(hw); | |
3445 | return; | |
3446 | } | |
3447 | ||
3448 | /* if (e1000_get_hw_eeprom_semaphore(hw)) | |
3449 | * return -E1000_ERR_SWFW_SYNC; */ | |
3450 | while (e1000_get_hw_eeprom_semaphore(hw) != E1000_SUCCESS); | |
3451 | /* empty */ | |
3452 | ||
3453 | swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); | |
3454 | swfw_sync &= ~swmask; | |
3455 | E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync); | |
3456 | ||
3457 | e1000_put_hw_eeprom_semaphore(hw); | |
3458 | } | |
3459 | ||
1da177e4 LT |
3460 | /***************************************************************************** |
3461 | * Reads the value from a PHY register, if the value is on a specific non zero | |
3462 | * page, sets the page first. | |
3463 | * hw - Struct containing variables accessed by shared code | |
3464 | * reg_addr - address of the PHY register to read | |
3465 | ******************************************************************************/ | |
3466 | int32_t | |
3467 | e1000_read_phy_reg(struct e1000_hw *hw, | |
3468 | uint32_t reg_addr, | |
3469 | uint16_t *phy_data) | |
3470 | { | |
3471 | uint32_t ret_val; | |
6418ecc6 | 3472 | uint16_t swfw; |
1da177e4 LT |
3473 | |
3474 | DEBUGFUNC("e1000_read_phy_reg"); | |
3475 | ||
6418ecc6 JK |
3476 | if ((hw->mac_type == e1000_80003es2lan) && |
3477 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3478 | swfw = E1000_SWFW_PHY1_SM; | |
3479 | } else { | |
3480 | swfw = E1000_SWFW_PHY0_SM; | |
3481 | } | |
3482 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3483 | return -E1000_ERR_SWFW_SYNC; | |
3484 | ||
cd94dd0b AK |
3485 | if ((hw->phy_type == e1000_phy_igp || |
3486 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 3487 | hw->phy_type == e1000_phy_igp_2) && |
1da177e4 LT |
3488 | (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { |
3489 | ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, | |
3490 | (uint16_t)reg_addr); | |
8fc897b0 | 3491 | if (ret_val) { |
6418ecc6 | 3492 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3493 | return ret_val; |
3494 | } | |
6418ecc6 JK |
3495 | } else if (hw->phy_type == e1000_phy_gg82563) { |
3496 | if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || | |
3497 | (hw->mac_type == e1000_80003es2lan)) { | |
3498 | /* Select Configuration Page */ | |
3499 | if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | |
3500 | ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, | |
3501 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3502 | } else { | |
3503 | /* Use Alternative Page Select register to access | |
3504 | * registers 30 and 31 | |
3505 | */ | |
3506 | ret_val = e1000_write_phy_reg_ex(hw, | |
3507 | GG82563_PHY_PAGE_SELECT_ALT, | |
3508 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3509 | } | |
3510 | ||
3511 | if (ret_val) { | |
3512 | e1000_swfw_sync_release(hw, swfw); | |
3513 | return ret_val; | |
3514 | } | |
3515 | } | |
1da177e4 LT |
3516 | } |
3517 | ||
3518 | ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, | |
3519 | phy_data); | |
3520 | ||
6418ecc6 | 3521 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3522 | return ret_val; |
3523 | } | |
3524 | ||
35574764 NN |
3525 | static int32_t |
3526 | e1000_read_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr, | |
1da177e4 LT |
3527 | uint16_t *phy_data) |
3528 | { | |
3529 | uint32_t i; | |
3530 | uint32_t mdic = 0; | |
3531 | const uint32_t phy_addr = 1; | |
3532 | ||
3533 | DEBUGFUNC("e1000_read_phy_reg_ex"); | |
3534 | ||
8fc897b0 | 3535 | if (reg_addr > MAX_PHY_REG_ADDRESS) { |
1da177e4 LT |
3536 | DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); |
3537 | return -E1000_ERR_PARAM; | |
3538 | } | |
3539 | ||
8fc897b0 | 3540 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
3541 | /* Set up Op-code, Phy Address, and register address in the MDI |
3542 | * Control register. The MAC will take care of interfacing with the | |
3543 | * PHY to retrieve the desired data. | |
3544 | */ | |
3545 | mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | | |
3546 | (phy_addr << E1000_MDIC_PHY_SHIFT) | | |
3547 | (E1000_MDIC_OP_READ)); | |
3548 | ||
3549 | E1000_WRITE_REG(hw, MDIC, mdic); | |
3550 | ||
3551 | /* Poll the ready bit to see if the MDI read completed */ | |
8fc897b0 | 3552 | for (i = 0; i < 64; i++) { |
1da177e4 LT |
3553 | udelay(50); |
3554 | mdic = E1000_READ_REG(hw, MDIC); | |
8fc897b0 | 3555 | if (mdic & E1000_MDIC_READY) break; |
1da177e4 | 3556 | } |
8fc897b0 | 3557 | if (!(mdic & E1000_MDIC_READY)) { |
1da177e4 LT |
3558 | DEBUGOUT("MDI Read did not complete\n"); |
3559 | return -E1000_ERR_PHY; | |
3560 | } | |
8fc897b0 | 3561 | if (mdic & E1000_MDIC_ERROR) { |
1da177e4 LT |
3562 | DEBUGOUT("MDI Error\n"); |
3563 | return -E1000_ERR_PHY; | |
3564 | } | |
3565 | *phy_data = (uint16_t) mdic; | |
3566 | } else { | |
3567 | /* We must first send a preamble through the MDIO pin to signal the | |
3568 | * beginning of an MII instruction. This is done by sending 32 | |
3569 | * consecutive "1" bits. | |
3570 | */ | |
3571 | e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); | |
3572 | ||
3573 | /* Now combine the next few fields that are required for a read | |
3574 | * operation. We use this method instead of calling the | |
3575 | * e1000_shift_out_mdi_bits routine five different times. The format of | |
3576 | * a MII read instruction consists of a shift out of 14 bits and is | |
3577 | * defined as follows: | |
3578 | * <Preamble><SOF><Op Code><Phy Addr><Reg Addr> | |
3579 | * followed by a shift in of 18 bits. This first two bits shifted in | |
3580 | * are TurnAround bits used to avoid contention on the MDIO pin when a | |
3581 | * READ operation is performed. These two bits are thrown away | |
3582 | * followed by a shift in of 16 bits which contains the desired data. | |
3583 | */ | |
3584 | mdic = ((reg_addr) | (phy_addr << 5) | | |
3585 | (PHY_OP_READ << 10) | (PHY_SOF << 12)); | |
3586 | ||
3587 | e1000_shift_out_mdi_bits(hw, mdic, 14); | |
3588 | ||
3589 | /* Now that we've shifted out the read command to the MII, we need to | |
3590 | * "shift in" the 16-bit value (18 total bits) of the requested PHY | |
3591 | * register address. | |
3592 | */ | |
3593 | *phy_data = e1000_shift_in_mdi_bits(hw); | |
3594 | } | |
3595 | return E1000_SUCCESS; | |
3596 | } | |
3597 | ||
3598 | /****************************************************************************** | |
3599 | * Writes a value to a PHY register | |
3600 | * | |
3601 | * hw - Struct containing variables accessed by shared code | |
3602 | * reg_addr - address of the PHY register to write | |
3603 | * data - data to write to the PHY | |
3604 | ******************************************************************************/ | |
3605 | int32_t | |
35574764 | 3606 | e1000_write_phy_reg(struct e1000_hw *hw, uint32_t reg_addr, |
1da177e4 LT |
3607 | uint16_t phy_data) |
3608 | { | |
3609 | uint32_t ret_val; | |
6418ecc6 | 3610 | uint16_t swfw; |
1da177e4 LT |
3611 | |
3612 | DEBUGFUNC("e1000_write_phy_reg"); | |
3613 | ||
6418ecc6 JK |
3614 | if ((hw->mac_type == e1000_80003es2lan) && |
3615 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3616 | swfw = E1000_SWFW_PHY1_SM; | |
3617 | } else { | |
3618 | swfw = E1000_SWFW_PHY0_SM; | |
3619 | } | |
3620 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3621 | return -E1000_ERR_SWFW_SYNC; | |
3622 | ||
cd94dd0b AK |
3623 | if ((hw->phy_type == e1000_phy_igp || |
3624 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 3625 | hw->phy_type == e1000_phy_igp_2) && |
1da177e4 LT |
3626 | (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { |
3627 | ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, | |
3628 | (uint16_t)reg_addr); | |
8fc897b0 | 3629 | if (ret_val) { |
6418ecc6 | 3630 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3631 | return ret_val; |
3632 | } | |
6418ecc6 JK |
3633 | } else if (hw->phy_type == e1000_phy_gg82563) { |
3634 | if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || | |
3635 | (hw->mac_type == e1000_80003es2lan)) { | |
3636 | /* Select Configuration Page */ | |
3637 | if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | |
3638 | ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, | |
3639 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3640 | } else { | |
3641 | /* Use Alternative Page Select register to access | |
3642 | * registers 30 and 31 | |
3643 | */ | |
3644 | ret_val = e1000_write_phy_reg_ex(hw, | |
3645 | GG82563_PHY_PAGE_SELECT_ALT, | |
3646 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3647 | } | |
3648 | ||
3649 | if (ret_val) { | |
3650 | e1000_swfw_sync_release(hw, swfw); | |
3651 | return ret_val; | |
3652 | } | |
3653 | } | |
1da177e4 LT |
3654 | } |
3655 | ||
3656 | ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, | |
3657 | phy_data); | |
3658 | ||
6418ecc6 | 3659 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3660 | return ret_val; |
3661 | } | |
3662 | ||
35574764 NN |
3663 | static int32_t |
3664 | e1000_write_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr, | |
3665 | uint16_t phy_data) | |
1da177e4 LT |
3666 | { |
3667 | uint32_t i; | |
3668 | uint32_t mdic = 0; | |
3669 | const uint32_t phy_addr = 1; | |
3670 | ||
3671 | DEBUGFUNC("e1000_write_phy_reg_ex"); | |
3672 | ||
8fc897b0 | 3673 | if (reg_addr > MAX_PHY_REG_ADDRESS) { |
1da177e4 LT |
3674 | DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); |
3675 | return -E1000_ERR_PARAM; | |
3676 | } | |
3677 | ||
8fc897b0 | 3678 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
3679 | /* Set up Op-code, Phy Address, register address, and data intended |
3680 | * for the PHY register in the MDI Control register. The MAC will take | |
3681 | * care of interfacing with the PHY to send the desired data. | |
3682 | */ | |
3683 | mdic = (((uint32_t) phy_data) | | |
3684 | (reg_addr << E1000_MDIC_REG_SHIFT) | | |
3685 | (phy_addr << E1000_MDIC_PHY_SHIFT) | | |
3686 | (E1000_MDIC_OP_WRITE)); | |
3687 | ||
3688 | E1000_WRITE_REG(hw, MDIC, mdic); | |
3689 | ||
3690 | /* Poll the ready bit to see if the MDI read completed */ | |
8fc897b0 | 3691 | for (i = 0; i < 641; i++) { |
1da177e4 LT |
3692 | udelay(5); |
3693 | mdic = E1000_READ_REG(hw, MDIC); | |
8fc897b0 | 3694 | if (mdic & E1000_MDIC_READY) break; |
1da177e4 | 3695 | } |
8fc897b0 | 3696 | if (!(mdic & E1000_MDIC_READY)) { |
1da177e4 LT |
3697 | DEBUGOUT("MDI Write did not complete\n"); |
3698 | return -E1000_ERR_PHY; | |
3699 | } | |
3700 | } else { | |
3701 | /* We'll need to use the SW defined pins to shift the write command | |
3702 | * out to the PHY. We first send a preamble to the PHY to signal the | |
3703 | * beginning of the MII instruction. This is done by sending 32 | |
3704 | * consecutive "1" bits. | |
3705 | */ | |
3706 | e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); | |
3707 | ||
3708 | /* Now combine the remaining required fields that will indicate a | |
3709 | * write operation. We use this method instead of calling the | |
3710 | * e1000_shift_out_mdi_bits routine for each field in the command. The | |
3711 | * format of a MII write instruction is as follows: | |
3712 | * <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>. | |
3713 | */ | |
3714 | mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | | |
3715 | (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); | |
3716 | mdic <<= 16; | |
3717 | mdic |= (uint32_t) phy_data; | |
3718 | ||
3719 | e1000_shift_out_mdi_bits(hw, mdic, 32); | |
3720 | } | |
3721 | ||
3722 | return E1000_SUCCESS; | |
3723 | } | |
3724 | ||
e4c780b1 | 3725 | static int32_t |
6418ecc6 JK |
3726 | e1000_read_kmrn_reg(struct e1000_hw *hw, |
3727 | uint32_t reg_addr, | |
3728 | uint16_t *data) | |
3729 | { | |
3730 | uint32_t reg_val; | |
3731 | uint16_t swfw; | |
3732 | DEBUGFUNC("e1000_read_kmrn_reg"); | |
3733 | ||
3734 | if ((hw->mac_type == e1000_80003es2lan) && | |
3735 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3736 | swfw = E1000_SWFW_PHY1_SM; | |
3737 | } else { | |
3738 | swfw = E1000_SWFW_PHY0_SM; | |
3739 | } | |
3740 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3741 | return -E1000_ERR_SWFW_SYNC; | |
3742 | ||
3743 | /* Write register address */ | |
3744 | reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & | |
3745 | E1000_KUMCTRLSTA_OFFSET) | | |
3746 | E1000_KUMCTRLSTA_REN; | |
3747 | E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val); | |
3748 | udelay(2); | |
3749 | ||
3750 | /* Read the data returned */ | |
3751 | reg_val = E1000_READ_REG(hw, KUMCTRLSTA); | |
3752 | *data = (uint16_t)reg_val; | |
3753 | ||
3754 | e1000_swfw_sync_release(hw, swfw); | |
3755 | return E1000_SUCCESS; | |
3756 | } | |
3757 | ||
e4c780b1 | 3758 | static int32_t |
6418ecc6 JK |
3759 | e1000_write_kmrn_reg(struct e1000_hw *hw, |
3760 | uint32_t reg_addr, | |
3761 | uint16_t data) | |
3762 | { | |
3763 | uint32_t reg_val; | |
3764 | uint16_t swfw; | |
3765 | DEBUGFUNC("e1000_write_kmrn_reg"); | |
3766 | ||
3767 | if ((hw->mac_type == e1000_80003es2lan) && | |
3768 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3769 | swfw = E1000_SWFW_PHY1_SM; | |
3770 | } else { | |
3771 | swfw = E1000_SWFW_PHY0_SM; | |
3772 | } | |
3773 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3774 | return -E1000_ERR_SWFW_SYNC; | |
3775 | ||
3776 | reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & | |
3777 | E1000_KUMCTRLSTA_OFFSET) | data; | |
3778 | E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val); | |
3779 | udelay(2); | |
3780 | ||
3781 | e1000_swfw_sync_release(hw, swfw); | |
3782 | return E1000_SUCCESS; | |
3783 | } | |
2d7edb92 | 3784 | |
1da177e4 LT |
3785 | /****************************************************************************** |
3786 | * Returns the PHY to the power-on reset state | |
3787 | * | |
3788 | * hw - Struct containing variables accessed by shared code | |
3789 | ******************************************************************************/ | |
2d7edb92 | 3790 | int32_t |
1da177e4 LT |
3791 | e1000_phy_hw_reset(struct e1000_hw *hw) |
3792 | { | |
3793 | uint32_t ctrl, ctrl_ext; | |
3794 | uint32_t led_ctrl; | |
2d7edb92 | 3795 | int32_t ret_val; |
6418ecc6 | 3796 | uint16_t swfw; |
1da177e4 LT |
3797 | |
3798 | DEBUGFUNC("e1000_phy_hw_reset"); | |
3799 | ||
2d7edb92 MC |
3800 | /* In the case of the phy reset being blocked, it's not an error, we |
3801 | * simply return success without performing the reset. */ | |
3802 | ret_val = e1000_check_phy_reset_block(hw); | |
3803 | if (ret_val) | |
3804 | return E1000_SUCCESS; | |
3805 | ||
1da177e4 LT |
3806 | DEBUGOUT("Resetting Phy...\n"); |
3807 | ||
8fc897b0 | 3808 | if (hw->mac_type > e1000_82543) { |
6418ecc6 JK |
3809 | if ((hw->mac_type == e1000_80003es2lan) && |
3810 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3811 | swfw = E1000_SWFW_PHY1_SM; | |
3812 | } else { | |
3813 | swfw = E1000_SWFW_PHY0_SM; | |
3814 | } | |
3815 | if (e1000_swfw_sync_acquire(hw, swfw)) { | |
2a88c173 | 3816 | DEBUGOUT("Unable to acquire swfw sync\n"); |
6418ecc6 JK |
3817 | return -E1000_ERR_SWFW_SYNC; |
3818 | } | |
1da177e4 LT |
3819 | /* Read the device control register and assert the E1000_CTRL_PHY_RST |
3820 | * bit. Then, take it out of reset. | |
76c224bc | 3821 | * For pre-e1000_82571 hardware, we delay for 10ms between the assert |
fd803241 | 3822 | * and deassert. For e1000_82571 hardware and later, we instead delay |
0f15a8fa | 3823 | * for 50us between and 10ms after the deassertion. |
1da177e4 LT |
3824 | */ |
3825 | ctrl = E1000_READ_REG(hw, CTRL); | |
3826 | E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PHY_RST); | |
3827 | E1000_WRITE_FLUSH(hw); | |
76c224bc AK |
3828 | |
3829 | if (hw->mac_type < e1000_82571) | |
f8ec4733 | 3830 | msleep(10); |
b55ccb35 JK |
3831 | else |
3832 | udelay(100); | |
76c224bc | 3833 | |
1da177e4 LT |
3834 | E1000_WRITE_REG(hw, CTRL, ctrl); |
3835 | E1000_WRITE_FLUSH(hw); | |
76c224bc | 3836 | |
fd803241 | 3837 | if (hw->mac_type >= e1000_82571) |
f8ec4733 | 3838 | mdelay(10); |
35574764 | 3839 | |
6418ecc6 | 3840 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3841 | } else { |
3842 | /* Read the Extended Device Control Register, assert the PHY_RESET_DIR | |
3843 | * bit to put the PHY into reset. Then, take it out of reset. | |
3844 | */ | |
3845 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
3846 | ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; | |
3847 | ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; | |
3848 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
3849 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 | 3850 | msleep(10); |
1da177e4 LT |
3851 | ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; |
3852 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
3853 | E1000_WRITE_FLUSH(hw); | |
3854 | } | |
3855 | udelay(150); | |
3856 | ||
8fc897b0 | 3857 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1da177e4 LT |
3858 | /* Configure activity LED after PHY reset */ |
3859 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
3860 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
3861 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
3862 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
3863 | } | |
2d7edb92 MC |
3864 | |
3865 | /* Wait for FW to finish PHY configuration. */ | |
3866 | ret_val = e1000_get_phy_cfg_done(hw); | |
8fc897b0 AK |
3867 | if (ret_val != E1000_SUCCESS) |
3868 | return ret_val; | |
6418ecc6 | 3869 | e1000_release_software_semaphore(hw); |
2d7edb92 | 3870 | |
8fc897b0 AK |
3871 | if ((hw->mac_type == e1000_ich8lan) && (hw->phy_type == e1000_phy_igp_3)) |
3872 | ret_val = e1000_init_lcd_from_nvm(hw); | |
3873 | ||
2d7edb92 | 3874 | return ret_val; |
1da177e4 LT |
3875 | } |
3876 | ||
3877 | /****************************************************************************** | |
3878 | * Resets the PHY | |
3879 | * | |
3880 | * hw - Struct containing variables accessed by shared code | |
3881 | * | |
0779bf2d | 3882 | * Sets bit 15 of the MII Control register |
1da177e4 LT |
3883 | ******************************************************************************/ |
3884 | int32_t | |
3885 | e1000_phy_reset(struct e1000_hw *hw) | |
3886 | { | |
3887 | int32_t ret_val; | |
3888 | uint16_t phy_data; | |
3889 | ||
3890 | DEBUGFUNC("e1000_phy_reset"); | |
3891 | ||
2d7edb92 MC |
3892 | /* In the case of the phy reset being blocked, it's not an error, we |
3893 | * simply return success without performing the reset. */ | |
3894 | ret_val = e1000_check_phy_reset_block(hw); | |
3895 | if (ret_val) | |
3896 | return E1000_SUCCESS; | |
3897 | ||
2a88c173 JK |
3898 | switch (hw->phy_type) { |
3899 | case e1000_phy_igp: | |
3900 | case e1000_phy_igp_2: | |
3901 | case e1000_phy_igp_3: | |
3902 | case e1000_phy_ife: | |
2d7edb92 | 3903 | ret_val = e1000_phy_hw_reset(hw); |
8fc897b0 | 3904 | if (ret_val) |
2d7edb92 MC |
3905 | return ret_val; |
3906 | break; | |
3907 | default: | |
1da177e4 | 3908 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); |
8fc897b0 | 3909 | if (ret_val) |
1da177e4 LT |
3910 | return ret_val; |
3911 | ||
3912 | phy_data |= MII_CR_RESET; | |
3913 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
8fc897b0 | 3914 | if (ret_val) |
1da177e4 LT |
3915 | return ret_val; |
3916 | ||
3917 | udelay(1); | |
2d7edb92 MC |
3918 | break; |
3919 | } | |
1da177e4 | 3920 | |
8fc897b0 | 3921 | if (hw->phy_type == e1000_phy_igp || hw->phy_type == e1000_phy_igp_2) |
1da177e4 LT |
3922 | e1000_phy_init_script(hw); |
3923 | ||
3924 | return E1000_SUCCESS; | |
3925 | } | |
3926 | ||
d37ea5d5 AK |
3927 | /****************************************************************************** |
3928 | * Work-around for 82566 power-down: on D3 entry- | |
3929 | * 1) disable gigabit link | |
3930 | * 2) write VR power-down enable | |
3931 | * 3) read it back | |
3932 | * if successful continue, else issue LCD reset and repeat | |
3933 | * | |
3934 | * hw - struct containing variables accessed by shared code | |
3935 | ******************************************************************************/ | |
3936 | void | |
3937 | e1000_phy_powerdown_workaround(struct e1000_hw *hw) | |
3938 | { | |
3939 | int32_t reg; | |
3940 | uint16_t phy_data; | |
3941 | int32_t retry = 0; | |
3942 | ||
3943 | DEBUGFUNC("e1000_phy_powerdown_workaround"); | |
3944 | ||
3945 | if (hw->phy_type != e1000_phy_igp_3) | |
3946 | return; | |
3947 | ||
3948 | do { | |
3949 | /* Disable link */ | |
3950 | reg = E1000_READ_REG(hw, PHY_CTRL); | |
3951 | E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | | |
3952 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
3953 | ||
070f6ffb | 3954 | /* Write VR power-down enable - bits 9:8 should be 10b */ |
d37ea5d5 | 3955 | e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); |
070f6ffb JK |
3956 | phy_data |= (1 << 9); |
3957 | phy_data &= ~(1 << 8); | |
3958 | e1000_write_phy_reg(hw, IGP3_VR_CTRL, phy_data); | |
d37ea5d5 AK |
3959 | |
3960 | /* Read it back and test */ | |
3961 | e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); | |
070f6ffb | 3962 | if (((phy_data & IGP3_VR_CTRL_MODE_MASK) == IGP3_VR_CTRL_MODE_SHUT) || retry) |
d37ea5d5 AK |
3963 | break; |
3964 | ||
3965 | /* Issue PHY reset and repeat at most one more time */ | |
3966 | reg = E1000_READ_REG(hw, CTRL); | |
3967 | E1000_WRITE_REG(hw, CTRL, reg | E1000_CTRL_PHY_RST); | |
3968 | retry++; | |
3969 | } while (retry); | |
3970 | ||
3971 | return; | |
3972 | ||
3973 | } | |
3974 | ||
3975 | /****************************************************************************** | |
3976 | * Work-around for 82566 Kumeran PCS lock loss: | |
3977 | * On link status change (i.e. PCI reset, speed change) and link is up and | |
3978 | * speed is gigabit- | |
3979 | * 0) if workaround is optionally disabled do nothing | |
3980 | * 1) wait 1ms for Kumeran link to come up | |
3981 | * 2) check Kumeran Diagnostic register PCS lock loss bit | |
3982 | * 3) if not set the link is locked (all is good), otherwise... | |
3983 | * 4) reset the PHY | |
3984 | * 5) repeat up to 10 times | |
3985 | * Note: this is only called for IGP3 copper when speed is 1gb. | |
3986 | * | |
3987 | * hw - struct containing variables accessed by shared code | |
3988 | ******************************************************************************/ | |
e4c780b1 | 3989 | static int32_t |
d37ea5d5 AK |
3990 | e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw) |
3991 | { | |
3992 | int32_t ret_val; | |
3993 | int32_t reg; | |
3994 | int32_t cnt; | |
3995 | uint16_t phy_data; | |
3996 | ||
3997 | if (hw->kmrn_lock_loss_workaround_disabled) | |
3998 | return E1000_SUCCESS; | |
3999 | ||
8fc897b0 AK |
4000 | /* Make sure link is up before proceeding. If not just return. |
4001 | * Attempting this while link is negotiating fouled up link | |
d37ea5d5 AK |
4002 | * stability */ |
4003 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
4004 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
4005 | ||
4006 | if (phy_data & MII_SR_LINK_STATUS) { | |
4007 | for (cnt = 0; cnt < 10; cnt++) { | |
4008 | /* read once to clear */ | |
4009 | ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); | |
4010 | if (ret_val) | |
4011 | return ret_val; | |
4012 | /* and again to get new status */ | |
4013 | ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); | |
4014 | if (ret_val) | |
4015 | return ret_val; | |
4016 | ||
4017 | /* check for PCS lock */ | |
4018 | if (!(phy_data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) | |
4019 | return E1000_SUCCESS; | |
4020 | ||
4021 | /* Issue PHY reset */ | |
4022 | e1000_phy_hw_reset(hw); | |
f8ec4733 | 4023 | mdelay(5); |
d37ea5d5 AK |
4024 | } |
4025 | /* Disable GigE link negotiation */ | |
4026 | reg = E1000_READ_REG(hw, PHY_CTRL); | |
4027 | E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | | |
4028 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
4029 | ||
4030 | /* unable to acquire PCS lock */ | |
4031 | return E1000_ERR_PHY; | |
4032 | } | |
4033 | ||
4034 | return E1000_SUCCESS; | |
4035 | } | |
4036 | ||
1da177e4 LT |
4037 | /****************************************************************************** |
4038 | * Probes the expected PHY address for known PHY IDs | |
4039 | * | |
4040 | * hw - Struct containing variables accessed by shared code | |
4041 | ******************************************************************************/ | |
35574764 | 4042 | static int32_t |
1da177e4 LT |
4043 | e1000_detect_gig_phy(struct e1000_hw *hw) |
4044 | { | |
4045 | int32_t phy_init_status, ret_val; | |
4046 | uint16_t phy_id_high, phy_id_low; | |
4047 | boolean_t match = FALSE; | |
4048 | ||
4049 | DEBUGFUNC("e1000_detect_gig_phy"); | |
4050 | ||
2a88c173 JK |
4051 | if (hw->phy_id != 0) |
4052 | return E1000_SUCCESS; | |
4053 | ||
868d5309 MC |
4054 | /* The 82571 firmware may still be configuring the PHY. In this |
4055 | * case, we cannot access the PHY until the configuration is done. So | |
4056 | * we explicitly set the PHY values. */ | |
cd94dd0b AK |
4057 | if (hw->mac_type == e1000_82571 || |
4058 | hw->mac_type == e1000_82572) { | |
868d5309 MC |
4059 | hw->phy_id = IGP01E1000_I_PHY_ID; |
4060 | hw->phy_type = e1000_phy_igp_2; | |
4061 | return E1000_SUCCESS; | |
4062 | } | |
4063 | ||
6418ecc6 JK |
4064 | /* ESB-2 PHY reads require e1000_phy_gg82563 to be set because of a work- |
4065 | * around that forces PHY page 0 to be set or the reads fail. The rest of | |
4066 | * the code in this routine uses e1000_read_phy_reg to read the PHY ID. | |
4067 | * So for ESB-2 we need to have this set so our reads won't fail. If the | |
4068 | * attached PHY is not a e1000_phy_gg82563, the routines below will figure | |
4069 | * this out as well. */ | |
4070 | if (hw->mac_type == e1000_80003es2lan) | |
4071 | hw->phy_type = e1000_phy_gg82563; | |
4072 | ||
1da177e4 LT |
4073 | /* Read the PHY ID Registers to identify which PHY is onboard. */ |
4074 | ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); | |
cd94dd0b | 4075 | if (ret_val) |
1da177e4 LT |
4076 | return ret_val; |
4077 | ||
4078 | hw->phy_id = (uint32_t) (phy_id_high << 16); | |
4079 | udelay(20); | |
4080 | ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); | |
8fc897b0 | 4081 | if (ret_val) |
1da177e4 LT |
4082 | return ret_val; |
4083 | ||
4084 | hw->phy_id |= (uint32_t) (phy_id_low & PHY_REVISION_MASK); | |
4085 | hw->phy_revision = (uint32_t) phy_id_low & ~PHY_REVISION_MASK; | |
4086 | ||
8fc897b0 | 4087 | switch (hw->mac_type) { |
1da177e4 | 4088 | case e1000_82543: |
8fc897b0 | 4089 | if (hw->phy_id == M88E1000_E_PHY_ID) match = TRUE; |
1da177e4 LT |
4090 | break; |
4091 | case e1000_82544: | |
8fc897b0 | 4092 | if (hw->phy_id == M88E1000_I_PHY_ID) match = TRUE; |
1da177e4 LT |
4093 | break; |
4094 | case e1000_82540: | |
4095 | case e1000_82545: | |
4096 | case e1000_82545_rev_3: | |
4097 | case e1000_82546: | |
4098 | case e1000_82546_rev_3: | |
8fc897b0 | 4099 | if (hw->phy_id == M88E1011_I_PHY_ID) match = TRUE; |
1da177e4 LT |
4100 | break; |
4101 | case e1000_82541: | |
4102 | case e1000_82541_rev_2: | |
4103 | case e1000_82547: | |
4104 | case e1000_82547_rev_2: | |
8fc897b0 | 4105 | if (hw->phy_id == IGP01E1000_I_PHY_ID) match = TRUE; |
1da177e4 | 4106 | break; |
2d7edb92 | 4107 | case e1000_82573: |
8fc897b0 | 4108 | if (hw->phy_id == M88E1111_I_PHY_ID) match = TRUE; |
2d7edb92 | 4109 | break; |
6418ecc6 JK |
4110 | case e1000_80003es2lan: |
4111 | if (hw->phy_id == GG82563_E_PHY_ID) match = TRUE; | |
4112 | break; | |
cd94dd0b AK |
4113 | case e1000_ich8lan: |
4114 | if (hw->phy_id == IGP03E1000_E_PHY_ID) match = TRUE; | |
4115 | if (hw->phy_id == IFE_E_PHY_ID) match = TRUE; | |
4116 | if (hw->phy_id == IFE_PLUS_E_PHY_ID) match = TRUE; | |
4117 | if (hw->phy_id == IFE_C_E_PHY_ID) match = TRUE; | |
4118 | break; | |
1da177e4 LT |
4119 | default: |
4120 | DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); | |
4121 | return -E1000_ERR_CONFIG; | |
4122 | } | |
4123 | phy_init_status = e1000_set_phy_type(hw); | |
4124 | ||
4125 | if ((match) && (phy_init_status == E1000_SUCCESS)) { | |
4126 | DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); | |
4127 | return E1000_SUCCESS; | |
4128 | } | |
4129 | DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); | |
4130 | return -E1000_ERR_PHY; | |
4131 | } | |
4132 | ||
4133 | /****************************************************************************** | |
4134 | * Resets the PHY's DSP | |
4135 | * | |
4136 | * hw - Struct containing variables accessed by shared code | |
4137 | ******************************************************************************/ | |
4138 | static int32_t | |
4139 | e1000_phy_reset_dsp(struct e1000_hw *hw) | |
4140 | { | |
4141 | int32_t ret_val; | |
4142 | DEBUGFUNC("e1000_phy_reset_dsp"); | |
4143 | ||
4144 | do { | |
6418ecc6 JK |
4145 | if (hw->phy_type != e1000_phy_gg82563) { |
4146 | ret_val = e1000_write_phy_reg(hw, 29, 0x001d); | |
8fc897b0 | 4147 | if (ret_val) break; |
6418ecc6 | 4148 | } |
1da177e4 | 4149 | ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); |
8fc897b0 | 4150 | if (ret_val) break; |
1da177e4 | 4151 | ret_val = e1000_write_phy_reg(hw, 30, 0x0000); |
8fc897b0 | 4152 | if (ret_val) break; |
1da177e4 | 4153 | ret_val = E1000_SUCCESS; |
8fc897b0 | 4154 | } while (0); |
1da177e4 LT |
4155 | |
4156 | return ret_val; | |
4157 | } | |
4158 | ||
4159 | /****************************************************************************** | |
4160 | * Get PHY information from various PHY registers for igp PHY only. | |
4161 | * | |
4162 | * hw - Struct containing variables accessed by shared code | |
4163 | * phy_info - PHY information structure | |
4164 | ******************************************************************************/ | |
cff93eb3 | 4165 | static int32_t |
1da177e4 LT |
4166 | e1000_phy_igp_get_info(struct e1000_hw *hw, |
4167 | struct e1000_phy_info *phy_info) | |
4168 | { | |
4169 | int32_t ret_val; | |
70c6f30a JK |
4170 | uint16_t phy_data, min_length, max_length, average; |
4171 | e1000_rev_polarity polarity; | |
1da177e4 LT |
4172 | |
4173 | DEBUGFUNC("e1000_phy_igp_get_info"); | |
4174 | ||
4175 | /* The downshift status is checked only once, after link is established, | |
4176 | * and it stored in the hw->speed_downgraded parameter. */ | |
2d7edb92 | 4177 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; |
1da177e4 LT |
4178 | |
4179 | /* IGP01E1000 does not need to support it. */ | |
4180 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; | |
4181 | ||
4182 | /* IGP01E1000 always correct polarity reversal */ | |
4183 | phy_info->polarity_correction = e1000_polarity_reversal_enabled; | |
4184 | ||
4185 | /* Check polarity status */ | |
4186 | ret_val = e1000_check_polarity(hw, &polarity); | |
8fc897b0 | 4187 | if (ret_val) |
1da177e4 LT |
4188 | return ret_val; |
4189 | ||
4190 | phy_info->cable_polarity = polarity; | |
4191 | ||
4192 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); | |
8fc897b0 | 4193 | if (ret_val) |
1da177e4 LT |
4194 | return ret_val; |
4195 | ||
70c6f30a JK |
4196 | phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & IGP01E1000_PSSR_MDIX) >> |
4197 | IGP01E1000_PSSR_MDIX_SHIFT); | |
1da177e4 | 4198 | |
8fc897b0 | 4199 | if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == |
1da177e4 LT |
4200 | IGP01E1000_PSSR_SPEED_1000MBPS) { |
4201 | /* Local/Remote Receiver Information are only valid at 1000 Mbps */ | |
4202 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); | |
8fc897b0 | 4203 | if (ret_val) |
1da177e4 LT |
4204 | return ret_val; |
4205 | ||
70c6f30a JK |
4206 | phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> |
4207 | SR_1000T_LOCAL_RX_STATUS_SHIFT) ? | |
4208 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
4209 | phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> | |
4210 | SR_1000T_REMOTE_RX_STATUS_SHIFT) ? | |
4211 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
1da177e4 LT |
4212 | |
4213 | /* Get cable length */ | |
4214 | ret_val = e1000_get_cable_length(hw, &min_length, &max_length); | |
8fc897b0 | 4215 | if (ret_val) |
1da177e4 LT |
4216 | return ret_val; |
4217 | ||
2d7edb92 | 4218 | /* Translate to old method */ |
1da177e4 LT |
4219 | average = (max_length + min_length) / 2; |
4220 | ||
8fc897b0 | 4221 | if (average <= e1000_igp_cable_length_50) |
1da177e4 | 4222 | phy_info->cable_length = e1000_cable_length_50; |
8fc897b0 | 4223 | else if (average <= e1000_igp_cable_length_80) |
1da177e4 | 4224 | phy_info->cable_length = e1000_cable_length_50_80; |
8fc897b0 | 4225 | else if (average <= e1000_igp_cable_length_110) |
1da177e4 | 4226 | phy_info->cable_length = e1000_cable_length_80_110; |
8fc897b0 | 4227 | else if (average <= e1000_igp_cable_length_140) |
1da177e4 LT |
4228 | phy_info->cable_length = e1000_cable_length_110_140; |
4229 | else | |
4230 | phy_info->cable_length = e1000_cable_length_140; | |
4231 | } | |
4232 | ||
4233 | return E1000_SUCCESS; | |
4234 | } | |
4235 | ||
d37ea5d5 AK |
4236 | /****************************************************************************** |
4237 | * Get PHY information from various PHY registers for ife PHY only. | |
4238 | * | |
4239 | * hw - Struct containing variables accessed by shared code | |
4240 | * phy_info - PHY information structure | |
4241 | ******************************************************************************/ | |
e4c780b1 | 4242 | static int32_t |
d37ea5d5 AK |
4243 | e1000_phy_ife_get_info(struct e1000_hw *hw, |
4244 | struct e1000_phy_info *phy_info) | |
4245 | { | |
4246 | int32_t ret_val; | |
70c6f30a JK |
4247 | uint16_t phy_data; |
4248 | e1000_rev_polarity polarity; | |
d37ea5d5 AK |
4249 | |
4250 | DEBUGFUNC("e1000_phy_ife_get_info"); | |
4251 | ||
4252 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; | |
4253 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; | |
4254 | ||
4255 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); | |
4256 | if (ret_val) | |
4257 | return ret_val; | |
4258 | phy_info->polarity_correction = | |
70c6f30a JK |
4259 | ((phy_data & IFE_PSC_AUTO_POLARITY_DISABLE) >> |
4260 | IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT) ? | |
4261 | e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; | |
d37ea5d5 AK |
4262 | |
4263 | if (phy_info->polarity_correction == e1000_polarity_reversal_enabled) { | |
4264 | ret_val = e1000_check_polarity(hw, &polarity); | |
4265 | if (ret_val) | |
4266 | return ret_val; | |
4267 | } else { | |
4268 | /* Polarity is forced. */ | |
70c6f30a JK |
4269 | polarity = ((phy_data & IFE_PSC_FORCE_POLARITY) >> |
4270 | IFE_PSC_FORCE_POLARITY_SHIFT) ? | |
4271 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
d37ea5d5 AK |
4272 | } |
4273 | phy_info->cable_polarity = polarity; | |
4274 | ||
4275 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); | |
4276 | if (ret_val) | |
4277 | return ret_val; | |
4278 | ||
70c6f30a JK |
4279 | phy_info->mdix_mode = (e1000_auto_x_mode) |
4280 | ((phy_data & (IFE_PMC_AUTO_MDIX | IFE_PMC_FORCE_MDIX)) >> | |
4281 | IFE_PMC_MDIX_MODE_SHIFT); | |
d37ea5d5 AK |
4282 | |
4283 | return E1000_SUCCESS; | |
4284 | } | |
4285 | ||
1da177e4 LT |
4286 | /****************************************************************************** |
4287 | * Get PHY information from various PHY registers fot m88 PHY only. | |
4288 | * | |
4289 | * hw - Struct containing variables accessed by shared code | |
4290 | * phy_info - PHY information structure | |
4291 | ******************************************************************************/ | |
3ad2cc67 | 4292 | static int32_t |
1da177e4 LT |
4293 | e1000_phy_m88_get_info(struct e1000_hw *hw, |
4294 | struct e1000_phy_info *phy_info) | |
4295 | { | |
4296 | int32_t ret_val; | |
70c6f30a JK |
4297 | uint16_t phy_data; |
4298 | e1000_rev_polarity polarity; | |
1da177e4 LT |
4299 | |
4300 | DEBUGFUNC("e1000_phy_m88_get_info"); | |
4301 | ||
4302 | /* The downshift status is checked only once, after link is established, | |
4303 | * and it stored in the hw->speed_downgraded parameter. */ | |
2d7edb92 | 4304 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; |
1da177e4 LT |
4305 | |
4306 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 4307 | if (ret_val) |
1da177e4 LT |
4308 | return ret_val; |
4309 | ||
4310 | phy_info->extended_10bt_distance = | |
70c6f30a JK |
4311 | ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> |
4312 | M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ? | |
4313 | e1000_10bt_ext_dist_enable_lower : e1000_10bt_ext_dist_enable_normal; | |
4314 | ||
1da177e4 | 4315 | phy_info->polarity_correction = |
70c6f30a JK |
4316 | ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> |
4317 | M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ? | |
4318 | e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; | |
1da177e4 LT |
4319 | |
4320 | /* Check polarity status */ | |
4321 | ret_val = e1000_check_polarity(hw, &polarity); | |
8fc897b0 | 4322 | if (ret_val) |
76c224bc | 4323 | return ret_val; |
1da177e4 LT |
4324 | phy_info->cable_polarity = polarity; |
4325 | ||
4326 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); | |
8fc897b0 | 4327 | if (ret_val) |
1da177e4 LT |
4328 | return ret_val; |
4329 | ||
70c6f30a JK |
4330 | phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & M88E1000_PSSR_MDIX) >> |
4331 | M88E1000_PSSR_MDIX_SHIFT); | |
1da177e4 LT |
4332 | |
4333 | if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { | |
4334 | /* Cable Length Estimation and Local/Remote Receiver Information | |
4335 | * are only valid at 1000 Mbps. | |
4336 | */ | |
6418ecc6 | 4337 | if (hw->phy_type != e1000_phy_gg82563) { |
70c6f30a | 4338 | phy_info->cable_length = (e1000_cable_length)((phy_data & M88E1000_PSSR_CABLE_LENGTH) >> |
6418ecc6 JK |
4339 | M88E1000_PSSR_CABLE_LENGTH_SHIFT); |
4340 | } else { | |
4341 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, | |
4342 | &phy_data); | |
4343 | if (ret_val) | |
4344 | return ret_val; | |
4345 | ||
70c6f30a | 4346 | phy_info->cable_length = (e1000_cable_length)(phy_data & GG82563_DSPD_CABLE_LENGTH); |
6418ecc6 | 4347 | } |
1da177e4 LT |
4348 | |
4349 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); | |
8fc897b0 | 4350 | if (ret_val) |
1da177e4 LT |
4351 | return ret_val; |
4352 | ||
70c6f30a JK |
4353 | phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> |
4354 | SR_1000T_LOCAL_RX_STATUS_SHIFT) ? | |
4355 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
4356 | phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> | |
4357 | SR_1000T_REMOTE_RX_STATUS_SHIFT) ? | |
4358 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
1da177e4 | 4359 | |
1da177e4 LT |
4360 | } |
4361 | ||
4362 | return E1000_SUCCESS; | |
4363 | } | |
4364 | ||
4365 | /****************************************************************************** | |
4366 | * Get PHY information from various PHY registers | |
4367 | * | |
4368 | * hw - Struct containing variables accessed by shared code | |
4369 | * phy_info - PHY information structure | |
4370 | ******************************************************************************/ | |
4371 | int32_t | |
4372 | e1000_phy_get_info(struct e1000_hw *hw, | |
4373 | struct e1000_phy_info *phy_info) | |
4374 | { | |
4375 | int32_t ret_val; | |
4376 | uint16_t phy_data; | |
4377 | ||
4378 | DEBUGFUNC("e1000_phy_get_info"); | |
4379 | ||
4380 | phy_info->cable_length = e1000_cable_length_undefined; | |
4381 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; | |
4382 | phy_info->cable_polarity = e1000_rev_polarity_undefined; | |
4383 | phy_info->downshift = e1000_downshift_undefined; | |
4384 | phy_info->polarity_correction = e1000_polarity_reversal_undefined; | |
4385 | phy_info->mdix_mode = e1000_auto_x_mode_undefined; | |
4386 | phy_info->local_rx = e1000_1000t_rx_status_undefined; | |
4387 | phy_info->remote_rx = e1000_1000t_rx_status_undefined; | |
4388 | ||
8fc897b0 | 4389 | if (hw->media_type != e1000_media_type_copper) { |
1da177e4 LT |
4390 | DEBUGOUT("PHY info is only valid for copper media\n"); |
4391 | return -E1000_ERR_CONFIG; | |
4392 | } | |
4393 | ||
4394 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 4395 | if (ret_val) |
1da177e4 LT |
4396 | return ret_val; |
4397 | ||
4398 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 4399 | if (ret_val) |
1da177e4 LT |
4400 | return ret_val; |
4401 | ||
8fc897b0 | 4402 | if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { |
1da177e4 LT |
4403 | DEBUGOUT("PHY info is only valid if link is up\n"); |
4404 | return -E1000_ERR_CONFIG; | |
4405 | } | |
4406 | ||
cd94dd0b AK |
4407 | if (hw->phy_type == e1000_phy_igp || |
4408 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 4409 | hw->phy_type == e1000_phy_igp_2) |
1da177e4 | 4410 | return e1000_phy_igp_get_info(hw, phy_info); |
cd94dd0b AK |
4411 | else if (hw->phy_type == e1000_phy_ife) |
4412 | return e1000_phy_ife_get_info(hw, phy_info); | |
1da177e4 LT |
4413 | else |
4414 | return e1000_phy_m88_get_info(hw, phy_info); | |
4415 | } | |
4416 | ||
4417 | int32_t | |
4418 | e1000_validate_mdi_setting(struct e1000_hw *hw) | |
4419 | { | |
4420 | DEBUGFUNC("e1000_validate_mdi_settings"); | |
4421 | ||
8fc897b0 | 4422 | if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { |
1da177e4 LT |
4423 | DEBUGOUT("Invalid MDI setting detected\n"); |
4424 | hw->mdix = 1; | |
4425 | return -E1000_ERR_CONFIG; | |
4426 | } | |
4427 | return E1000_SUCCESS; | |
4428 | } | |
4429 | ||
4430 | ||
4431 | /****************************************************************************** | |
4432 | * Sets up eeprom variables in the hw struct. Must be called after mac_type | |
0f15a8fa JK |
4433 | * is configured. Additionally, if this is ICH8, the flash controller GbE |
4434 | * registers must be mapped, or this will crash. | |
1da177e4 LT |
4435 | * |
4436 | * hw - Struct containing variables accessed by shared code | |
4437 | *****************************************************************************/ | |
2d7edb92 | 4438 | int32_t |
1da177e4 LT |
4439 | e1000_init_eeprom_params(struct e1000_hw *hw) |
4440 | { | |
4441 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4442 | uint32_t eecd = E1000_READ_REG(hw, EECD); | |
2d7edb92 | 4443 | int32_t ret_val = E1000_SUCCESS; |
1da177e4 LT |
4444 | uint16_t eeprom_size; |
4445 | ||
4446 | DEBUGFUNC("e1000_init_eeprom_params"); | |
4447 | ||
4448 | switch (hw->mac_type) { | |
4449 | case e1000_82542_rev2_0: | |
4450 | case e1000_82542_rev2_1: | |
4451 | case e1000_82543: | |
4452 | case e1000_82544: | |
4453 | eeprom->type = e1000_eeprom_microwire; | |
4454 | eeprom->word_size = 64; | |
4455 | eeprom->opcode_bits = 3; | |
4456 | eeprom->address_bits = 6; | |
4457 | eeprom->delay_usec = 50; | |
2d7edb92 MC |
4458 | eeprom->use_eerd = FALSE; |
4459 | eeprom->use_eewr = FALSE; | |
1da177e4 LT |
4460 | break; |
4461 | case e1000_82540: | |
4462 | case e1000_82545: | |
4463 | case e1000_82545_rev_3: | |
4464 | case e1000_82546: | |
4465 | case e1000_82546_rev_3: | |
4466 | eeprom->type = e1000_eeprom_microwire; | |
4467 | eeprom->opcode_bits = 3; | |
4468 | eeprom->delay_usec = 50; | |
8fc897b0 | 4469 | if (eecd & E1000_EECD_SIZE) { |
1da177e4 LT |
4470 | eeprom->word_size = 256; |
4471 | eeprom->address_bits = 8; | |
4472 | } else { | |
4473 | eeprom->word_size = 64; | |
4474 | eeprom->address_bits = 6; | |
4475 | } | |
2d7edb92 MC |
4476 | eeprom->use_eerd = FALSE; |
4477 | eeprom->use_eewr = FALSE; | |
1da177e4 LT |
4478 | break; |
4479 | case e1000_82541: | |
4480 | case e1000_82541_rev_2: | |
4481 | case e1000_82547: | |
4482 | case e1000_82547_rev_2: | |
4483 | if (eecd & E1000_EECD_TYPE) { | |
4484 | eeprom->type = e1000_eeprom_spi; | |
4485 | eeprom->opcode_bits = 8; | |
4486 | eeprom->delay_usec = 1; | |
4487 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4488 | eeprom->page_size = 32; | |
4489 | eeprom->address_bits = 16; | |
4490 | } else { | |
4491 | eeprom->page_size = 8; | |
4492 | eeprom->address_bits = 8; | |
4493 | } | |
4494 | } else { | |
4495 | eeprom->type = e1000_eeprom_microwire; | |
4496 | eeprom->opcode_bits = 3; | |
4497 | eeprom->delay_usec = 50; | |
4498 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4499 | eeprom->word_size = 256; | |
4500 | eeprom->address_bits = 8; | |
4501 | } else { | |
4502 | eeprom->word_size = 64; | |
4503 | eeprom->address_bits = 6; | |
4504 | } | |
4505 | } | |
2d7edb92 MC |
4506 | eeprom->use_eerd = FALSE; |
4507 | eeprom->use_eewr = FALSE; | |
4508 | break; | |
868d5309 MC |
4509 | case e1000_82571: |
4510 | case e1000_82572: | |
4511 | eeprom->type = e1000_eeprom_spi; | |
4512 | eeprom->opcode_bits = 8; | |
4513 | eeprom->delay_usec = 1; | |
4514 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4515 | eeprom->page_size = 32; | |
4516 | eeprom->address_bits = 16; | |
4517 | } else { | |
4518 | eeprom->page_size = 8; | |
4519 | eeprom->address_bits = 8; | |
4520 | } | |
4521 | eeprom->use_eerd = FALSE; | |
4522 | eeprom->use_eewr = FALSE; | |
4523 | break; | |
2d7edb92 MC |
4524 | case e1000_82573: |
4525 | eeprom->type = e1000_eeprom_spi; | |
4526 | eeprom->opcode_bits = 8; | |
4527 | eeprom->delay_usec = 1; | |
4528 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4529 | eeprom->page_size = 32; | |
4530 | eeprom->address_bits = 16; | |
4531 | } else { | |
4532 | eeprom->page_size = 8; | |
4533 | eeprom->address_bits = 8; | |
4534 | } | |
4535 | eeprom->use_eerd = TRUE; | |
4536 | eeprom->use_eewr = TRUE; | |
8fc897b0 | 4537 | if (e1000_is_onboard_nvm_eeprom(hw) == FALSE) { |
2d7edb92 MC |
4538 | eeprom->type = e1000_eeprom_flash; |
4539 | eeprom->word_size = 2048; | |
4540 | ||
4541 | /* Ensure that the Autonomous FLASH update bit is cleared due to | |
4542 | * Flash update issue on parts which use a FLASH for NVM. */ | |
4543 | eecd &= ~E1000_EECD_AUPDEN; | |
4544 | E1000_WRITE_REG(hw, EECD, eecd); | |
4545 | } | |
1da177e4 | 4546 | break; |
6418ecc6 JK |
4547 | case e1000_80003es2lan: |
4548 | eeprom->type = e1000_eeprom_spi; | |
4549 | eeprom->opcode_bits = 8; | |
4550 | eeprom->delay_usec = 1; | |
4551 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4552 | eeprom->page_size = 32; | |
4553 | eeprom->address_bits = 16; | |
4554 | } else { | |
4555 | eeprom->page_size = 8; | |
4556 | eeprom->address_bits = 8; | |
4557 | } | |
4558 | eeprom->use_eerd = TRUE; | |
4559 | eeprom->use_eewr = FALSE; | |
4560 | break; | |
cd94dd0b | 4561 | case e1000_ich8lan: |
35574764 | 4562 | { |
cd94dd0b | 4563 | int32_t i = 0; |
2df7d59f | 4564 | uint32_t flash_size = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_GFPREG); |
cd94dd0b AK |
4565 | |
4566 | eeprom->type = e1000_eeprom_ich8; | |
4567 | eeprom->use_eerd = FALSE; | |
4568 | eeprom->use_eewr = FALSE; | |
4569 | eeprom->word_size = E1000_SHADOW_RAM_WORDS; | |
4570 | ||
4571 | /* Zero the shadow RAM structure. But don't load it from NVM | |
4572 | * so as to save time for driver init */ | |
4573 | if (hw->eeprom_shadow_ram != NULL) { | |
4574 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
4575 | hw->eeprom_shadow_ram[i].modified = FALSE; | |
4576 | hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; | |
4577 | } | |
4578 | } | |
4579 | ||
2df7d59f JK |
4580 | hw->flash_base_addr = (flash_size & ICH_GFPREG_BASE_MASK) * |
4581 | ICH_FLASH_SECTOR_SIZE; | |
4582 | ||
4583 | hw->flash_bank_size = ((flash_size >> 16) & ICH_GFPREG_BASE_MASK) + 1; | |
4584 | hw->flash_bank_size -= (flash_size & ICH_GFPREG_BASE_MASK); | |
4585 | ||
4586 | hw->flash_bank_size *= ICH_FLASH_SECTOR_SIZE; | |
cd94dd0b | 4587 | |
cd94dd0b AK |
4588 | hw->flash_bank_size /= 2 * sizeof(uint16_t); |
4589 | ||
4590 | break; | |
35574764 | 4591 | } |
1da177e4 LT |
4592 | default: |
4593 | break; | |
4594 | } | |
4595 | ||
4596 | if (eeprom->type == e1000_eeprom_spi) { | |
2d7edb92 MC |
4597 | /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to |
4598 | * 32KB (incremented by powers of 2). | |
4599 | */ | |
8fc897b0 | 4600 | if (hw->mac_type <= e1000_82547_rev_2) { |
2d7edb92 MC |
4601 | /* Set to default value for initial eeprom read. */ |
4602 | eeprom->word_size = 64; | |
4603 | ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); | |
8fc897b0 | 4604 | if (ret_val) |
2d7edb92 MC |
4605 | return ret_val; |
4606 | eeprom_size = (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; | |
4607 | /* 256B eeprom size was not supported in earlier hardware, so we | |
4608 | * bump eeprom_size up one to ensure that "1" (which maps to 256B) | |
4609 | * is never the result used in the shifting logic below. */ | |
8fc897b0 | 4610 | if (eeprom_size) |
2d7edb92 MC |
4611 | eeprom_size++; |
4612 | } else { | |
4613 | eeprom_size = (uint16_t)((eecd & E1000_EECD_SIZE_EX_MASK) >> | |
4614 | E1000_EECD_SIZE_EX_SHIFT); | |
1da177e4 | 4615 | } |
2d7edb92 MC |
4616 | |
4617 | eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); | |
1da177e4 | 4618 | } |
2d7edb92 | 4619 | return ret_val; |
1da177e4 LT |
4620 | } |
4621 | ||
4622 | /****************************************************************************** | |
4623 | * Raises the EEPROM's clock input. | |
4624 | * | |
4625 | * hw - Struct containing variables accessed by shared code | |
4626 | * eecd - EECD's current value | |
4627 | *****************************************************************************/ | |
4628 | static void | |
4629 | e1000_raise_ee_clk(struct e1000_hw *hw, | |
4630 | uint32_t *eecd) | |
4631 | { | |
4632 | /* Raise the clock input to the EEPROM (by setting the SK bit), and then | |
4633 | * wait <delay> microseconds. | |
4634 | */ | |
4635 | *eecd = *eecd | E1000_EECD_SK; | |
4636 | E1000_WRITE_REG(hw, EECD, *eecd); | |
4637 | E1000_WRITE_FLUSH(hw); | |
4638 | udelay(hw->eeprom.delay_usec); | |
4639 | } | |
4640 | ||
4641 | /****************************************************************************** | |
4642 | * Lowers the EEPROM's clock input. | |
4643 | * | |
4644 | * hw - Struct containing variables accessed by shared code | |
4645 | * eecd - EECD's current value | |
4646 | *****************************************************************************/ | |
4647 | static void | |
4648 | e1000_lower_ee_clk(struct e1000_hw *hw, | |
4649 | uint32_t *eecd) | |
4650 | { | |
4651 | /* Lower the clock input to the EEPROM (by clearing the SK bit), and then | |
4652 | * wait 50 microseconds. | |
4653 | */ | |
4654 | *eecd = *eecd & ~E1000_EECD_SK; | |
4655 | E1000_WRITE_REG(hw, EECD, *eecd); | |
4656 | E1000_WRITE_FLUSH(hw); | |
4657 | udelay(hw->eeprom.delay_usec); | |
4658 | } | |
4659 | ||
4660 | /****************************************************************************** | |
4661 | * Shift data bits out to the EEPROM. | |
4662 | * | |
4663 | * hw - Struct containing variables accessed by shared code | |
4664 | * data - data to send to the EEPROM | |
4665 | * count - number of bits to shift out | |
4666 | *****************************************************************************/ | |
4667 | static void | |
4668 | e1000_shift_out_ee_bits(struct e1000_hw *hw, | |
4669 | uint16_t data, | |
4670 | uint16_t count) | |
4671 | { | |
4672 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4673 | uint32_t eecd; | |
4674 | uint32_t mask; | |
4675 | ||
4676 | /* We need to shift "count" bits out to the EEPROM. So, value in the | |
4677 | * "data" parameter will be shifted out to the EEPROM one bit at a time. | |
4678 | * In order to do this, "data" must be broken down into bits. | |
4679 | */ | |
4680 | mask = 0x01 << (count - 1); | |
4681 | eecd = E1000_READ_REG(hw, EECD); | |
4682 | if (eeprom->type == e1000_eeprom_microwire) { | |
4683 | eecd &= ~E1000_EECD_DO; | |
4684 | } else if (eeprom->type == e1000_eeprom_spi) { | |
4685 | eecd |= E1000_EECD_DO; | |
4686 | } | |
4687 | do { | |
4688 | /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", | |
4689 | * and then raising and then lowering the clock (the SK bit controls | |
4690 | * the clock input to the EEPROM). A "0" is shifted out to the EEPROM | |
4691 | * by setting "DI" to "0" and then raising and then lowering the clock. | |
4692 | */ | |
4693 | eecd &= ~E1000_EECD_DI; | |
4694 | ||
8fc897b0 | 4695 | if (data & mask) |
1da177e4 LT |
4696 | eecd |= E1000_EECD_DI; |
4697 | ||
4698 | E1000_WRITE_REG(hw, EECD, eecd); | |
4699 | E1000_WRITE_FLUSH(hw); | |
4700 | ||
4701 | udelay(eeprom->delay_usec); | |
4702 | ||
4703 | e1000_raise_ee_clk(hw, &eecd); | |
4704 | e1000_lower_ee_clk(hw, &eecd); | |
4705 | ||
4706 | mask = mask >> 1; | |
4707 | ||
8fc897b0 | 4708 | } while (mask); |
1da177e4 LT |
4709 | |
4710 | /* We leave the "DI" bit set to "0" when we leave this routine. */ | |
4711 | eecd &= ~E1000_EECD_DI; | |
4712 | E1000_WRITE_REG(hw, EECD, eecd); | |
4713 | } | |
4714 | ||
4715 | /****************************************************************************** | |
4716 | * Shift data bits in from the EEPROM | |
4717 | * | |
4718 | * hw - Struct containing variables accessed by shared code | |
4719 | *****************************************************************************/ | |
4720 | static uint16_t | |
4721 | e1000_shift_in_ee_bits(struct e1000_hw *hw, | |
4722 | uint16_t count) | |
4723 | { | |
4724 | uint32_t eecd; | |
4725 | uint32_t i; | |
4726 | uint16_t data; | |
4727 | ||
4728 | /* In order to read a register from the EEPROM, we need to shift 'count' | |
4729 | * bits in from the EEPROM. Bits are "shifted in" by raising the clock | |
4730 | * input to the EEPROM (setting the SK bit), and then reading the value of | |
4731 | * the "DO" bit. During this "shifting in" process the "DI" bit should | |
4732 | * always be clear. | |
4733 | */ | |
4734 | ||
4735 | eecd = E1000_READ_REG(hw, EECD); | |
4736 | ||
4737 | eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); | |
4738 | data = 0; | |
4739 | ||
8fc897b0 | 4740 | for (i = 0; i < count; i++) { |
1da177e4 LT |
4741 | data = data << 1; |
4742 | e1000_raise_ee_clk(hw, &eecd); | |
4743 | ||
4744 | eecd = E1000_READ_REG(hw, EECD); | |
4745 | ||
4746 | eecd &= ~(E1000_EECD_DI); | |
8fc897b0 | 4747 | if (eecd & E1000_EECD_DO) |
1da177e4 LT |
4748 | data |= 1; |
4749 | ||
4750 | e1000_lower_ee_clk(hw, &eecd); | |
4751 | } | |
4752 | ||
4753 | return data; | |
4754 | } | |
4755 | ||
4756 | /****************************************************************************** | |
4757 | * Prepares EEPROM for access | |
4758 | * | |
4759 | * hw - Struct containing variables accessed by shared code | |
4760 | * | |
4761 | * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This | |
4762 | * function should be called before issuing a command to the EEPROM. | |
4763 | *****************************************************************************/ | |
4764 | static int32_t | |
4765 | e1000_acquire_eeprom(struct e1000_hw *hw) | |
4766 | { | |
4767 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4768 | uint32_t eecd, i=0; | |
4769 | ||
4770 | DEBUGFUNC("e1000_acquire_eeprom"); | |
4771 | ||
6418ecc6 JK |
4772 | if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) |
4773 | return -E1000_ERR_SWFW_SYNC; | |
1da177e4 LT |
4774 | eecd = E1000_READ_REG(hw, EECD); |
4775 | ||
2d7edb92 | 4776 | if (hw->mac_type != e1000_82573) { |
868d5309 | 4777 | /* Request EEPROM Access */ |
8fc897b0 | 4778 | if (hw->mac_type > e1000_82544) { |
868d5309 | 4779 | eecd |= E1000_EECD_REQ; |
1da177e4 | 4780 | E1000_WRITE_REG(hw, EECD, eecd); |
868d5309 | 4781 | eecd = E1000_READ_REG(hw, EECD); |
8fc897b0 | 4782 | while ((!(eecd & E1000_EECD_GNT)) && |
868d5309 MC |
4783 | (i < E1000_EEPROM_GRANT_ATTEMPTS)) { |
4784 | i++; | |
4785 | udelay(5); | |
4786 | eecd = E1000_READ_REG(hw, EECD); | |
4787 | } | |
8fc897b0 | 4788 | if (!(eecd & E1000_EECD_GNT)) { |
868d5309 MC |
4789 | eecd &= ~E1000_EECD_REQ; |
4790 | E1000_WRITE_REG(hw, EECD, eecd); | |
4791 | DEBUGOUT("Could not acquire EEPROM grant\n"); | |
6418ecc6 | 4792 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
868d5309 MC |
4793 | return -E1000_ERR_EEPROM; |
4794 | } | |
1da177e4 LT |
4795 | } |
4796 | } | |
4797 | ||
4798 | /* Setup EEPROM for Read/Write */ | |
4799 | ||
4800 | if (eeprom->type == e1000_eeprom_microwire) { | |
4801 | /* Clear SK and DI */ | |
4802 | eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); | |
4803 | E1000_WRITE_REG(hw, EECD, eecd); | |
4804 | ||
4805 | /* Set CS */ | |
4806 | eecd |= E1000_EECD_CS; | |
4807 | E1000_WRITE_REG(hw, EECD, eecd); | |
4808 | } else if (eeprom->type == e1000_eeprom_spi) { | |
4809 | /* Clear SK and CS */ | |
4810 | eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); | |
4811 | E1000_WRITE_REG(hw, EECD, eecd); | |
4812 | udelay(1); | |
4813 | } | |
4814 | ||
4815 | return E1000_SUCCESS; | |
4816 | } | |
4817 | ||
4818 | /****************************************************************************** | |
4819 | * Returns EEPROM to a "standby" state | |
4820 | * | |
4821 | * hw - Struct containing variables accessed by shared code | |
4822 | *****************************************************************************/ | |
4823 | static void | |
4824 | e1000_standby_eeprom(struct e1000_hw *hw) | |
4825 | { | |
4826 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4827 | uint32_t eecd; | |
4828 | ||
4829 | eecd = E1000_READ_REG(hw, EECD); | |
4830 | ||
8fc897b0 | 4831 | if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
4832 | eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); |
4833 | E1000_WRITE_REG(hw, EECD, eecd); | |
4834 | E1000_WRITE_FLUSH(hw); | |
4835 | udelay(eeprom->delay_usec); | |
4836 | ||
4837 | /* Clock high */ | |
4838 | eecd |= E1000_EECD_SK; | |
4839 | E1000_WRITE_REG(hw, EECD, eecd); | |
4840 | E1000_WRITE_FLUSH(hw); | |
4841 | udelay(eeprom->delay_usec); | |
4842 | ||
4843 | /* Select EEPROM */ | |
4844 | eecd |= E1000_EECD_CS; | |
4845 | E1000_WRITE_REG(hw, EECD, eecd); | |
4846 | E1000_WRITE_FLUSH(hw); | |
4847 | udelay(eeprom->delay_usec); | |
4848 | ||
4849 | /* Clock low */ | |
4850 | eecd &= ~E1000_EECD_SK; | |
4851 | E1000_WRITE_REG(hw, EECD, eecd); | |
4852 | E1000_WRITE_FLUSH(hw); | |
4853 | udelay(eeprom->delay_usec); | |
8fc897b0 | 4854 | } else if (eeprom->type == e1000_eeprom_spi) { |
1da177e4 LT |
4855 | /* Toggle CS to flush commands */ |
4856 | eecd |= E1000_EECD_CS; | |
4857 | E1000_WRITE_REG(hw, EECD, eecd); | |
4858 | E1000_WRITE_FLUSH(hw); | |
4859 | udelay(eeprom->delay_usec); | |
4860 | eecd &= ~E1000_EECD_CS; | |
4861 | E1000_WRITE_REG(hw, EECD, eecd); | |
4862 | E1000_WRITE_FLUSH(hw); | |
4863 | udelay(eeprom->delay_usec); | |
4864 | } | |
4865 | } | |
4866 | ||
4867 | /****************************************************************************** | |
4868 | * Terminates a command by inverting the EEPROM's chip select pin | |
4869 | * | |
4870 | * hw - Struct containing variables accessed by shared code | |
4871 | *****************************************************************************/ | |
4872 | static void | |
4873 | e1000_release_eeprom(struct e1000_hw *hw) | |
4874 | { | |
4875 | uint32_t eecd; | |
4876 | ||
4877 | DEBUGFUNC("e1000_release_eeprom"); | |
4878 | ||
4879 | eecd = E1000_READ_REG(hw, EECD); | |
4880 | ||
4881 | if (hw->eeprom.type == e1000_eeprom_spi) { | |
4882 | eecd |= E1000_EECD_CS; /* Pull CS high */ | |
4883 | eecd &= ~E1000_EECD_SK; /* Lower SCK */ | |
4884 | ||
4885 | E1000_WRITE_REG(hw, EECD, eecd); | |
4886 | ||
4887 | udelay(hw->eeprom.delay_usec); | |
8fc897b0 | 4888 | } else if (hw->eeprom.type == e1000_eeprom_microwire) { |
1da177e4 LT |
4889 | /* cleanup eeprom */ |
4890 | ||
4891 | /* CS on Microwire is active-high */ | |
4892 | eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); | |
4893 | ||
4894 | E1000_WRITE_REG(hw, EECD, eecd); | |
4895 | ||
4896 | /* Rising edge of clock */ | |
4897 | eecd |= E1000_EECD_SK; | |
4898 | E1000_WRITE_REG(hw, EECD, eecd); | |
4899 | E1000_WRITE_FLUSH(hw); | |
4900 | udelay(hw->eeprom.delay_usec); | |
4901 | ||
4902 | /* Falling edge of clock */ | |
4903 | eecd &= ~E1000_EECD_SK; | |
4904 | E1000_WRITE_REG(hw, EECD, eecd); | |
4905 | E1000_WRITE_FLUSH(hw); | |
4906 | udelay(hw->eeprom.delay_usec); | |
4907 | } | |
4908 | ||
4909 | /* Stop requesting EEPROM access */ | |
8fc897b0 | 4910 | if (hw->mac_type > e1000_82544) { |
1da177e4 LT |
4911 | eecd &= ~E1000_EECD_REQ; |
4912 | E1000_WRITE_REG(hw, EECD, eecd); | |
4913 | } | |
2d7edb92 | 4914 | |
6418ecc6 | 4915 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
1da177e4 LT |
4916 | } |
4917 | ||
4918 | /****************************************************************************** | |
4919 | * Reads a 16 bit word from the EEPROM. | |
4920 | * | |
4921 | * hw - Struct containing variables accessed by shared code | |
4922 | *****************************************************************************/ | |
35574764 | 4923 | static int32_t |
1da177e4 LT |
4924 | e1000_spi_eeprom_ready(struct e1000_hw *hw) |
4925 | { | |
4926 | uint16_t retry_count = 0; | |
4927 | uint8_t spi_stat_reg; | |
4928 | ||
4929 | DEBUGFUNC("e1000_spi_eeprom_ready"); | |
4930 | ||
4931 | /* Read "Status Register" repeatedly until the LSB is cleared. The | |
4932 | * EEPROM will signal that the command has been completed by clearing | |
4933 | * bit 0 of the internal status register. If it's not cleared within | |
4934 | * 5 milliseconds, then error out. | |
4935 | */ | |
4936 | retry_count = 0; | |
4937 | do { | |
4938 | e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, | |
4939 | hw->eeprom.opcode_bits); | |
4940 | spi_stat_reg = (uint8_t)e1000_shift_in_ee_bits(hw, 8); | |
4941 | if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) | |
4942 | break; | |
4943 | ||
4944 | udelay(5); | |
4945 | retry_count += 5; | |
4946 | ||
4947 | e1000_standby_eeprom(hw); | |
8fc897b0 | 4948 | } while (retry_count < EEPROM_MAX_RETRY_SPI); |
1da177e4 LT |
4949 | |
4950 | /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and | |
4951 | * only 0-5mSec on 5V devices) | |
4952 | */ | |
8fc897b0 | 4953 | if (retry_count >= EEPROM_MAX_RETRY_SPI) { |
1da177e4 LT |
4954 | DEBUGOUT("SPI EEPROM Status error\n"); |
4955 | return -E1000_ERR_EEPROM; | |
4956 | } | |
4957 | ||
4958 | return E1000_SUCCESS; | |
4959 | } | |
4960 | ||
4961 | /****************************************************************************** | |
4962 | * Reads a 16 bit word from the EEPROM. | |
4963 | * | |
4964 | * hw - Struct containing variables accessed by shared code | |
4965 | * offset - offset of word in the EEPROM to read | |
4966 | * data - word read from the EEPROM | |
4967 | * words - number of words to read | |
4968 | *****************************************************************************/ | |
4969 | int32_t | |
4970 | e1000_read_eeprom(struct e1000_hw *hw, | |
4971 | uint16_t offset, | |
4972 | uint16_t words, | |
4973 | uint16_t *data) | |
4974 | { | |
4975 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4976 | uint32_t i = 0; | |
4977 | ||
4978 | DEBUGFUNC("e1000_read_eeprom"); | |
2d7edb92 | 4979 | |
2a88c173 JK |
4980 | /* If eeprom is not yet detected, do so now */ |
4981 | if (eeprom->word_size == 0) | |
4982 | e1000_init_eeprom_params(hw); | |
4983 | ||
1da177e4 LT |
4984 | /* A check for invalid values: offset too large, too many words, and not |
4985 | * enough words. | |
4986 | */ | |
8fc897b0 | 4987 | if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || |
1da177e4 | 4988 | (words == 0)) { |
2a88c173 | 4989 | DEBUGOUT2("\"words\" parameter out of bounds. Words = %d, size = %d\n", offset, eeprom->word_size); |
1da177e4 LT |
4990 | return -E1000_ERR_EEPROM; |
4991 | } | |
4992 | ||
2a88c173 JK |
4993 | /* EEPROM's that don't use EERD to read require us to bit-bang the SPI |
4994 | * directly. In this case, we need to acquire the EEPROM so that | |
4995 | * FW or other port software does not interrupt. | |
4996 | */ | |
4d351858 | 4997 | if (e1000_is_onboard_nvm_eeprom(hw) == TRUE && |
8fc897b0 | 4998 | hw->eeprom.use_eerd == FALSE) { |
2a88c173 JK |
4999 | /* Prepare the EEPROM for bit-bang reading */ |
5000 | if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) | |
5001 | return -E1000_ERR_EEPROM; | |
2d7edb92 MC |
5002 | } |
5003 | ||
2a88c173 JK |
5004 | /* Eerd register EEPROM access requires no eeprom aquire/release */ |
5005 | if (eeprom->use_eerd == TRUE) | |
5006 | return e1000_read_eeprom_eerd(hw, offset, words, data); | |
1da177e4 | 5007 | |
2a88c173 | 5008 | /* ICH EEPROM access is done via the ICH flash controller */ |
cd94dd0b AK |
5009 | if (eeprom->type == e1000_eeprom_ich8) |
5010 | return e1000_read_eeprom_ich8(hw, offset, words, data); | |
5011 | ||
2a88c173 JK |
5012 | /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have |
5013 | * acquired the EEPROM at this point, so any returns should relase it */ | |
cd94dd0b | 5014 | if (eeprom->type == e1000_eeprom_spi) { |
1da177e4 LT |
5015 | uint16_t word_in; |
5016 | uint8_t read_opcode = EEPROM_READ_OPCODE_SPI; | |
5017 | ||
8fc897b0 | 5018 | if (e1000_spi_eeprom_ready(hw)) { |
1da177e4 LT |
5019 | e1000_release_eeprom(hw); |
5020 | return -E1000_ERR_EEPROM; | |
5021 | } | |
5022 | ||
5023 | e1000_standby_eeprom(hw); | |
5024 | ||
5025 | /* Some SPI eeproms use the 8th address bit embedded in the opcode */ | |
8fc897b0 | 5026 | if ((eeprom->address_bits == 8) && (offset >= 128)) |
1da177e4 LT |
5027 | read_opcode |= EEPROM_A8_OPCODE_SPI; |
5028 | ||
5029 | /* Send the READ command (opcode + addr) */ | |
5030 | e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); | |
5031 | e1000_shift_out_ee_bits(hw, (uint16_t)(offset*2), eeprom->address_bits); | |
5032 | ||
5033 | /* Read the data. The address of the eeprom internally increments with | |
5034 | * each byte (spi) being read, saving on the overhead of eeprom setup | |
5035 | * and tear-down. The address counter will roll over if reading beyond | |
5036 | * the size of the eeprom, thus allowing the entire memory to be read | |
5037 | * starting from any offset. */ | |
5038 | for (i = 0; i < words; i++) { | |
5039 | word_in = e1000_shift_in_ee_bits(hw, 16); | |
5040 | data[i] = (word_in >> 8) | (word_in << 8); | |
5041 | } | |
8fc897b0 | 5042 | } else if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
5043 | for (i = 0; i < words; i++) { |
5044 | /* Send the READ command (opcode + addr) */ | |
5045 | e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE_MICROWIRE, | |
5046 | eeprom->opcode_bits); | |
5047 | e1000_shift_out_ee_bits(hw, (uint16_t)(offset + i), | |
5048 | eeprom->address_bits); | |
5049 | ||
5050 | /* Read the data. For microwire, each word requires the overhead | |
5051 | * of eeprom setup and tear-down. */ | |
5052 | data[i] = e1000_shift_in_ee_bits(hw, 16); | |
5053 | e1000_standby_eeprom(hw); | |
5054 | } | |
5055 | } | |
5056 | ||
5057 | /* End this read operation */ | |
5058 | e1000_release_eeprom(hw); | |
5059 | ||
5060 | return E1000_SUCCESS; | |
5061 | } | |
5062 | ||
5063 | /****************************************************************************** | |
2d7edb92 | 5064 | * Reads a 16 bit word from the EEPROM using the EERD register. |
1da177e4 LT |
5065 | * |
5066 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
5067 | * offset - offset of word in the EEPROM to read |
5068 | * data - word read from the EEPROM | |
5069 | * words - number of words to read | |
1da177e4 | 5070 | *****************************************************************************/ |
3ad2cc67 | 5071 | static int32_t |
2d7edb92 MC |
5072 | e1000_read_eeprom_eerd(struct e1000_hw *hw, |
5073 | uint16_t offset, | |
5074 | uint16_t words, | |
5075 | uint16_t *data) | |
1da177e4 | 5076 | { |
2d7edb92 MC |
5077 | uint32_t i, eerd = 0; |
5078 | int32_t error = 0; | |
1da177e4 | 5079 | |
2d7edb92 MC |
5080 | for (i = 0; i < words; i++) { |
5081 | eerd = ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) + | |
5082 | E1000_EEPROM_RW_REG_START; | |
1da177e4 | 5083 | |
2d7edb92 MC |
5084 | E1000_WRITE_REG(hw, EERD, eerd); |
5085 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_READ); | |
76c224bc | 5086 | |
8fc897b0 | 5087 | if (error) { |
2d7edb92 | 5088 | break; |
1da177e4 | 5089 | } |
2d7edb92 | 5090 | data[i] = (E1000_READ_REG(hw, EERD) >> E1000_EEPROM_RW_REG_DATA); |
76c224bc | 5091 | |
1da177e4 | 5092 | } |
76c224bc | 5093 | |
2d7edb92 | 5094 | return error; |
1da177e4 LT |
5095 | } |
5096 | ||
5097 | /****************************************************************************** | |
2d7edb92 | 5098 | * Writes a 16 bit word from the EEPROM using the EEWR register. |
1da177e4 LT |
5099 | * |
5100 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
5101 | * offset - offset of word in the EEPROM to read |
5102 | * data - word read from the EEPROM | |
5103 | * words - number of words to read | |
1da177e4 | 5104 | *****************************************************************************/ |
3ad2cc67 | 5105 | static int32_t |
2d7edb92 MC |
5106 | e1000_write_eeprom_eewr(struct e1000_hw *hw, |
5107 | uint16_t offset, | |
5108 | uint16_t words, | |
5109 | uint16_t *data) | |
1da177e4 | 5110 | { |
2d7edb92 MC |
5111 | uint32_t register_value = 0; |
5112 | uint32_t i = 0; | |
5113 | int32_t error = 0; | |
1da177e4 | 5114 | |
6418ecc6 JK |
5115 | if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) |
5116 | return -E1000_ERR_SWFW_SYNC; | |
5117 | ||
2d7edb92 | 5118 | for (i = 0; i < words; i++) { |
76c224bc AK |
5119 | register_value = (data[i] << E1000_EEPROM_RW_REG_DATA) | |
5120 | ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) | | |
2d7edb92 | 5121 | E1000_EEPROM_RW_REG_START; |
1da177e4 | 5122 | |
2d7edb92 | 5123 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); |
8fc897b0 | 5124 | if (error) { |
2d7edb92 | 5125 | break; |
76c224bc | 5126 | } |
2d7edb92 MC |
5127 | |
5128 | E1000_WRITE_REG(hw, EEWR, register_value); | |
76c224bc | 5129 | |
2d7edb92 | 5130 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); |
76c224bc | 5131 | |
8fc897b0 | 5132 | if (error) { |
2d7edb92 | 5133 | break; |
76c224bc | 5134 | } |
2d7edb92 | 5135 | } |
76c224bc | 5136 | |
6418ecc6 | 5137 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
2d7edb92 MC |
5138 | return error; |
5139 | } | |
5140 | ||
5141 | /****************************************************************************** | |
5142 | * Polls the status bit (bit 1) of the EERD to determine when the read is done. | |
5143 | * | |
5144 | * hw - Struct containing variables accessed by shared code | |
5145 | *****************************************************************************/ | |
3ad2cc67 | 5146 | static int32_t |
2d7edb92 MC |
5147 | e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd) |
5148 | { | |
5149 | uint32_t attempts = 100000; | |
5150 | uint32_t i, reg = 0; | |
5151 | int32_t done = E1000_ERR_EEPROM; | |
5152 | ||
8fc897b0 AK |
5153 | for (i = 0; i < attempts; i++) { |
5154 | if (eerd == E1000_EEPROM_POLL_READ) | |
2d7edb92 | 5155 | reg = E1000_READ_REG(hw, EERD); |
76c224bc | 5156 | else |
2d7edb92 MC |
5157 | reg = E1000_READ_REG(hw, EEWR); |
5158 | ||
8fc897b0 | 5159 | if (reg & E1000_EEPROM_RW_REG_DONE) { |
2d7edb92 MC |
5160 | done = E1000_SUCCESS; |
5161 | break; | |
5162 | } | |
5163 | udelay(5); | |
5164 | } | |
5165 | ||
5166 | return done; | |
5167 | } | |
5168 | ||
5169 | /*************************************************************************** | |
5170 | * Description: Determines if the onboard NVM is FLASH or EEPROM. | |
5171 | * | |
5172 | * hw - Struct containing variables accessed by shared code | |
5173 | ****************************************************************************/ | |
3ad2cc67 | 5174 | static boolean_t |
2d7edb92 MC |
5175 | e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw) |
5176 | { | |
5177 | uint32_t eecd = 0; | |
5178 | ||
6418ecc6 JK |
5179 | DEBUGFUNC("e1000_is_onboard_nvm_eeprom"); |
5180 | ||
cd94dd0b AK |
5181 | if (hw->mac_type == e1000_ich8lan) |
5182 | return FALSE; | |
5183 | ||
5184 | if (hw->mac_type == e1000_82573) { | |
2d7edb92 MC |
5185 | eecd = E1000_READ_REG(hw, EECD); |
5186 | ||
5187 | /* Isolate bits 15 & 16 */ | |
5188 | eecd = ((eecd >> 15) & 0x03); | |
5189 | ||
5190 | /* If both bits are set, device is Flash type */ | |
8fc897b0 | 5191 | if (eecd == 0x03) { |
2d7edb92 MC |
5192 | return FALSE; |
5193 | } | |
5194 | } | |
5195 | return TRUE; | |
5196 | } | |
5197 | ||
5198 | /****************************************************************************** | |
5199 | * Verifies that the EEPROM has a valid checksum | |
5200 | * | |
5201 | * hw - Struct containing variables accessed by shared code | |
5202 | * | |
5203 | * Reads the first 64 16 bit words of the EEPROM and sums the values read. | |
5204 | * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is | |
5205 | * valid. | |
5206 | *****************************************************************************/ | |
5207 | int32_t | |
5208 | e1000_validate_eeprom_checksum(struct e1000_hw *hw) | |
5209 | { | |
5210 | uint16_t checksum = 0; | |
5211 | uint16_t i, eeprom_data; | |
5212 | ||
5213 | DEBUGFUNC("e1000_validate_eeprom_checksum"); | |
5214 | ||
5215 | if ((hw->mac_type == e1000_82573) && | |
5216 | (e1000_is_onboard_nvm_eeprom(hw) == FALSE)) { | |
5217 | /* Check bit 4 of word 10h. If it is 0, firmware is done updating | |
5218 | * 10h-12h. Checksum may need to be fixed. */ | |
5219 | e1000_read_eeprom(hw, 0x10, 1, &eeprom_data); | |
5220 | if ((eeprom_data & 0x10) == 0) { | |
5221 | /* Read 0x23 and check bit 15. This bit is a 1 when the checksum | |
5222 | * has already been fixed. If the checksum is still wrong and this | |
5223 | * bit is a 1, we need to return bad checksum. Otherwise, we need | |
5224 | * to set this bit to a 1 and update the checksum. */ | |
5225 | e1000_read_eeprom(hw, 0x23, 1, &eeprom_data); | |
5226 | if ((eeprom_data & 0x8000) == 0) { | |
5227 | eeprom_data |= 0x8000; | |
5228 | e1000_write_eeprom(hw, 0x23, 1, &eeprom_data); | |
5229 | e1000_update_eeprom_checksum(hw); | |
5230 | } | |
5231 | } | |
5232 | } | |
5233 | ||
cd94dd0b AK |
5234 | if (hw->mac_type == e1000_ich8lan) { |
5235 | /* Drivers must allocate the shadow ram structure for the | |
5236 | * EEPROM checksum to be updated. Otherwise, this bit as well | |
5237 | * as the checksum must both be set correctly for this | |
5238 | * validation to pass. | |
5239 | */ | |
5240 | e1000_read_eeprom(hw, 0x19, 1, &eeprom_data); | |
5241 | if ((eeprom_data & 0x40) == 0) { | |
5242 | eeprom_data |= 0x40; | |
5243 | e1000_write_eeprom(hw, 0x19, 1, &eeprom_data); | |
5244 | e1000_update_eeprom_checksum(hw); | |
5245 | } | |
5246 | } | |
5247 | ||
5248 | for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { | |
5249 | if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { | |
2d7edb92 MC |
5250 | DEBUGOUT("EEPROM Read Error\n"); |
5251 | return -E1000_ERR_EEPROM; | |
5252 | } | |
5253 | checksum += eeprom_data; | |
5254 | } | |
5255 | ||
8fc897b0 | 5256 | if (checksum == (uint16_t) EEPROM_SUM) |
2d7edb92 MC |
5257 | return E1000_SUCCESS; |
5258 | else { | |
5259 | DEBUGOUT("EEPROM Checksum Invalid\n"); | |
5260 | return -E1000_ERR_EEPROM; | |
5261 | } | |
5262 | } | |
5263 | ||
5264 | /****************************************************************************** | |
5265 | * Calculates the EEPROM checksum and writes it to the EEPROM | |
5266 | * | |
5267 | * hw - Struct containing variables accessed by shared code | |
5268 | * | |
5269 | * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. | |
5270 | * Writes the difference to word offset 63 of the EEPROM. | |
5271 | *****************************************************************************/ | |
5272 | int32_t | |
5273 | e1000_update_eeprom_checksum(struct e1000_hw *hw) | |
5274 | { | |
cd94dd0b | 5275 | uint32_t ctrl_ext; |
2d7edb92 MC |
5276 | uint16_t checksum = 0; |
5277 | uint16_t i, eeprom_data; | |
5278 | ||
5279 | DEBUGFUNC("e1000_update_eeprom_checksum"); | |
5280 | ||
8fc897b0 AK |
5281 | for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { |
5282 | if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { | |
2d7edb92 MC |
5283 | DEBUGOUT("EEPROM Read Error\n"); |
5284 | return -E1000_ERR_EEPROM; | |
5285 | } | |
5286 | checksum += eeprom_data; | |
5287 | } | |
5288 | checksum = (uint16_t) EEPROM_SUM - checksum; | |
8fc897b0 | 5289 | if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { |
1da177e4 LT |
5290 | DEBUGOUT("EEPROM Write Error\n"); |
5291 | return -E1000_ERR_EEPROM; | |
2d7edb92 MC |
5292 | } else if (hw->eeprom.type == e1000_eeprom_flash) { |
5293 | e1000_commit_shadow_ram(hw); | |
cd94dd0b AK |
5294 | } else if (hw->eeprom.type == e1000_eeprom_ich8) { |
5295 | e1000_commit_shadow_ram(hw); | |
5296 | /* Reload the EEPROM, or else modifications will not appear | |
5297 | * until after next adapter reset. */ | |
5298 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
5299 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
5300 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
f8ec4733 | 5301 | msleep(10); |
1da177e4 LT |
5302 | } |
5303 | return E1000_SUCCESS; | |
5304 | } | |
5305 | ||
5306 | /****************************************************************************** | |
5307 | * Parent function for writing words to the different EEPROM types. | |
5308 | * | |
5309 | * hw - Struct containing variables accessed by shared code | |
5310 | * offset - offset within the EEPROM to be written to | |
5311 | * words - number of words to write | |
5312 | * data - 16 bit word to be written to the EEPROM | |
5313 | * | |
5314 | * If e1000_update_eeprom_checksum is not called after this function, the | |
5315 | * EEPROM will most likely contain an invalid checksum. | |
5316 | *****************************************************************************/ | |
5317 | int32_t | |
5318 | e1000_write_eeprom(struct e1000_hw *hw, | |
5319 | uint16_t offset, | |
5320 | uint16_t words, | |
5321 | uint16_t *data) | |
5322 | { | |
5323 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
5324 | int32_t status = 0; | |
5325 | ||
5326 | DEBUGFUNC("e1000_write_eeprom"); | |
5327 | ||
2a88c173 JK |
5328 | /* If eeprom is not yet detected, do so now */ |
5329 | if (eeprom->word_size == 0) | |
5330 | e1000_init_eeprom_params(hw); | |
5331 | ||
1da177e4 LT |
5332 | /* A check for invalid values: offset too large, too many words, and not |
5333 | * enough words. | |
5334 | */ | |
8fc897b0 | 5335 | if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || |
1da177e4 LT |
5336 | (words == 0)) { |
5337 | DEBUGOUT("\"words\" parameter out of bounds\n"); | |
5338 | return -E1000_ERR_EEPROM; | |
5339 | } | |
5340 | ||
868d5309 | 5341 | /* 82573 writes only through eewr */ |
8fc897b0 | 5342 | if (eeprom->use_eewr == TRUE) |
2d7edb92 MC |
5343 | return e1000_write_eeprom_eewr(hw, offset, words, data); |
5344 | ||
cd94dd0b AK |
5345 | if (eeprom->type == e1000_eeprom_ich8) |
5346 | return e1000_write_eeprom_ich8(hw, offset, words, data); | |
5347 | ||
1da177e4 LT |
5348 | /* Prepare the EEPROM for writing */ |
5349 | if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) | |
5350 | return -E1000_ERR_EEPROM; | |
5351 | ||
8fc897b0 | 5352 | if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
5353 | status = e1000_write_eeprom_microwire(hw, offset, words, data); |
5354 | } else { | |
5355 | status = e1000_write_eeprom_spi(hw, offset, words, data); | |
f8ec4733 | 5356 | msleep(10); |
1da177e4 LT |
5357 | } |
5358 | ||
5359 | /* Done with writing */ | |
5360 | e1000_release_eeprom(hw); | |
5361 | ||
5362 | return status; | |
5363 | } | |
5364 | ||
5365 | /****************************************************************************** | |
5366 | * Writes a 16 bit word to a given offset in an SPI EEPROM. | |
5367 | * | |
5368 | * hw - Struct containing variables accessed by shared code | |
5369 | * offset - offset within the EEPROM to be written to | |
5370 | * words - number of words to write | |
5371 | * data - pointer to array of 8 bit words to be written to the EEPROM | |
5372 | * | |
5373 | *****************************************************************************/ | |
35574764 | 5374 | static int32_t |
1da177e4 LT |
5375 | e1000_write_eeprom_spi(struct e1000_hw *hw, |
5376 | uint16_t offset, | |
5377 | uint16_t words, | |
5378 | uint16_t *data) | |
5379 | { | |
5380 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
5381 | uint16_t widx = 0; | |
5382 | ||
5383 | DEBUGFUNC("e1000_write_eeprom_spi"); | |
5384 | ||
5385 | while (widx < words) { | |
5386 | uint8_t write_opcode = EEPROM_WRITE_OPCODE_SPI; | |
5387 | ||
8fc897b0 | 5388 | if (e1000_spi_eeprom_ready(hw)) return -E1000_ERR_EEPROM; |
1da177e4 LT |
5389 | |
5390 | e1000_standby_eeprom(hw); | |
5391 | ||
5392 | /* Send the WRITE ENABLE command (8 bit opcode ) */ | |
5393 | e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, | |
5394 | eeprom->opcode_bits); | |
5395 | ||
5396 | e1000_standby_eeprom(hw); | |
5397 | ||
5398 | /* Some SPI eeproms use the 8th address bit embedded in the opcode */ | |
8fc897b0 | 5399 | if ((eeprom->address_bits == 8) && (offset >= 128)) |
1da177e4 LT |
5400 | write_opcode |= EEPROM_A8_OPCODE_SPI; |
5401 | ||
5402 | /* Send the Write command (8-bit opcode + addr) */ | |
5403 | e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); | |
5404 | ||
5405 | e1000_shift_out_ee_bits(hw, (uint16_t)((offset + widx)*2), | |
5406 | eeprom->address_bits); | |
5407 | ||
5408 | /* Send the data */ | |
5409 | ||
5410 | /* Loop to allow for up to whole page write (32 bytes) of eeprom */ | |
5411 | while (widx < words) { | |
5412 | uint16_t word_out = data[widx]; | |
5413 | word_out = (word_out >> 8) | (word_out << 8); | |
5414 | e1000_shift_out_ee_bits(hw, word_out, 16); | |
5415 | widx++; | |
5416 | ||
5417 | /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE | |
5418 | * operation, while the smaller eeproms are capable of an 8-byte | |
5419 | * PAGE WRITE operation. Break the inner loop to pass new address | |
5420 | */ | |
8fc897b0 | 5421 | if ((((offset + widx)*2) % eeprom->page_size) == 0) { |
1da177e4 LT |
5422 | e1000_standby_eeprom(hw); |
5423 | break; | |
5424 | } | |
5425 | } | |
5426 | } | |
5427 | ||
5428 | return E1000_SUCCESS; | |
5429 | } | |
5430 | ||
5431 | /****************************************************************************** | |
5432 | * Writes a 16 bit word to a given offset in a Microwire EEPROM. | |
5433 | * | |
5434 | * hw - Struct containing variables accessed by shared code | |
5435 | * offset - offset within the EEPROM to be written to | |
5436 | * words - number of words to write | |
5437 | * data - pointer to array of 16 bit words to be written to the EEPROM | |
5438 | * | |
5439 | *****************************************************************************/ | |
35574764 | 5440 | static int32_t |
1da177e4 LT |
5441 | e1000_write_eeprom_microwire(struct e1000_hw *hw, |
5442 | uint16_t offset, | |
5443 | uint16_t words, | |
5444 | uint16_t *data) | |
5445 | { | |
5446 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
5447 | uint32_t eecd; | |
5448 | uint16_t words_written = 0; | |
5449 | uint16_t i = 0; | |
5450 | ||
5451 | DEBUGFUNC("e1000_write_eeprom_microwire"); | |
5452 | ||
5453 | /* Send the write enable command to the EEPROM (3-bit opcode plus | |
5454 | * 6/8-bit dummy address beginning with 11). It's less work to include | |
5455 | * the 11 of the dummy address as part of the opcode than it is to shift | |
5456 | * it over the correct number of bits for the address. This puts the | |
5457 | * EEPROM into write/erase mode. | |
5458 | */ | |
5459 | e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, | |
5460 | (uint16_t)(eeprom->opcode_bits + 2)); | |
5461 | ||
5462 | e1000_shift_out_ee_bits(hw, 0, (uint16_t)(eeprom->address_bits - 2)); | |
5463 | ||
5464 | /* Prepare the EEPROM */ | |
5465 | e1000_standby_eeprom(hw); | |
5466 | ||
5467 | while (words_written < words) { | |
5468 | /* Send the Write command (3-bit opcode + addr) */ | |
5469 | e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, | |
5470 | eeprom->opcode_bits); | |
5471 | ||
5472 | e1000_shift_out_ee_bits(hw, (uint16_t)(offset + words_written), | |
5473 | eeprom->address_bits); | |
5474 | ||
5475 | /* Send the data */ | |
5476 | e1000_shift_out_ee_bits(hw, data[words_written], 16); | |
5477 | ||
5478 | /* Toggle the CS line. This in effect tells the EEPROM to execute | |
5479 | * the previous command. | |
5480 | */ | |
5481 | e1000_standby_eeprom(hw); | |
5482 | ||
5483 | /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will | |
5484 | * signal that the command has been completed by raising the DO signal. | |
5485 | * If DO does not go high in 10 milliseconds, then error out. | |
5486 | */ | |
8fc897b0 | 5487 | for (i = 0; i < 200; i++) { |
1da177e4 | 5488 | eecd = E1000_READ_REG(hw, EECD); |
8fc897b0 | 5489 | if (eecd & E1000_EECD_DO) break; |
1da177e4 LT |
5490 | udelay(50); |
5491 | } | |
8fc897b0 | 5492 | if (i == 200) { |
1da177e4 LT |
5493 | DEBUGOUT("EEPROM Write did not complete\n"); |
5494 | return -E1000_ERR_EEPROM; | |
5495 | } | |
5496 | ||
5497 | /* Recover from write */ | |
5498 | e1000_standby_eeprom(hw); | |
5499 | ||
5500 | words_written++; | |
5501 | } | |
5502 | ||
5503 | /* Send the write disable command to the EEPROM (3-bit opcode plus | |
5504 | * 6/8-bit dummy address beginning with 10). It's less work to include | |
5505 | * the 10 of the dummy address as part of the opcode than it is to shift | |
5506 | * it over the correct number of bits for the address. This takes the | |
5507 | * EEPROM out of write/erase mode. | |
5508 | */ | |
5509 | e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, | |
5510 | (uint16_t)(eeprom->opcode_bits + 2)); | |
5511 | ||
5512 | e1000_shift_out_ee_bits(hw, 0, (uint16_t)(eeprom->address_bits - 2)); | |
5513 | ||
5514 | return E1000_SUCCESS; | |
5515 | } | |
5516 | ||
2d7edb92 MC |
5517 | /****************************************************************************** |
5518 | * Flushes the cached eeprom to NVM. This is done by saving the modified values | |
5519 | * in the eeprom cache and the non modified values in the currently active bank | |
5520 | * to the new bank. | |
5521 | * | |
5522 | * hw - Struct containing variables accessed by shared code | |
5523 | * offset - offset of word in the EEPROM to read | |
5524 | * data - word read from the EEPROM | |
5525 | * words - number of words to read | |
5526 | *****************************************************************************/ | |
3ad2cc67 | 5527 | static int32_t |
2d7edb92 MC |
5528 | e1000_commit_shadow_ram(struct e1000_hw *hw) |
5529 | { | |
5530 | uint32_t attempts = 100000; | |
5531 | uint32_t eecd = 0; | |
5532 | uint32_t flop = 0; | |
5533 | uint32_t i = 0; | |
5534 | int32_t error = E1000_SUCCESS; | |
cd94dd0b AK |
5535 | uint32_t old_bank_offset = 0; |
5536 | uint32_t new_bank_offset = 0; | |
cd94dd0b AK |
5537 | uint8_t low_byte = 0; |
5538 | uint8_t high_byte = 0; | |
cd94dd0b | 5539 | boolean_t sector_write_failed = FALSE; |
2d7edb92 MC |
5540 | |
5541 | if (hw->mac_type == e1000_82573) { | |
cd94dd0b AK |
5542 | /* The flop register will be used to determine if flash type is STM */ |
5543 | flop = E1000_READ_REG(hw, FLOP); | |
2d7edb92 MC |
5544 | for (i=0; i < attempts; i++) { |
5545 | eecd = E1000_READ_REG(hw, EECD); | |
5546 | if ((eecd & E1000_EECD_FLUPD) == 0) { | |
5547 | break; | |
5548 | } | |
5549 | udelay(5); | |
5550 | } | |
5551 | ||
5552 | if (i == attempts) { | |
5553 | return -E1000_ERR_EEPROM; | |
5554 | } | |
5555 | ||
96838a40 | 5556 | /* If STM opcode located in bits 15:8 of flop, reset firmware */ |
2d7edb92 MC |
5557 | if ((flop & 0xFF00) == E1000_STM_OPCODE) { |
5558 | E1000_WRITE_REG(hw, HICR, E1000_HICR_FW_RESET); | |
5559 | } | |
5560 | ||
5561 | /* Perform the flash update */ | |
5562 | E1000_WRITE_REG(hw, EECD, eecd | E1000_EECD_FLUPD); | |
5563 | ||
96838a40 | 5564 | for (i=0; i < attempts; i++) { |
2d7edb92 MC |
5565 | eecd = E1000_READ_REG(hw, EECD); |
5566 | if ((eecd & E1000_EECD_FLUPD) == 0) { | |
5567 | break; | |
5568 | } | |
5569 | udelay(5); | |
5570 | } | |
5571 | ||
5572 | if (i == attempts) { | |
5573 | return -E1000_ERR_EEPROM; | |
5574 | } | |
5575 | } | |
5576 | ||
cd94dd0b AK |
5577 | if (hw->mac_type == e1000_ich8lan && hw->eeprom_shadow_ram != NULL) { |
5578 | /* We're writing to the opposite bank so if we're on bank 1, | |
5579 | * write to bank 0 etc. We also need to erase the segment that | |
5580 | * is going to be written */ | |
5581 | if (!(E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL)) { | |
5582 | new_bank_offset = hw->flash_bank_size * 2; | |
5583 | old_bank_offset = 0; | |
5584 | e1000_erase_ich8_4k_segment(hw, 1); | |
5585 | } else { | |
5586 | old_bank_offset = hw->flash_bank_size * 2; | |
5587 | new_bank_offset = 0; | |
5588 | e1000_erase_ich8_4k_segment(hw, 0); | |
5589 | } | |
5590 | ||
2a88c173 JK |
5591 | sector_write_failed = FALSE; |
5592 | /* Loop for every byte in the shadow RAM, | |
5593 | * which is in units of words. */ | |
5594 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
5595 | /* Determine whether to write the value stored | |
5596 | * in the other NVM bank or a modified value stored | |
5597 | * in the shadow RAM */ | |
5598 | if (hw->eeprom_shadow_ram[i].modified == TRUE) { | |
5599 | low_byte = (uint8_t)hw->eeprom_shadow_ram[i].eeprom_word; | |
5600 | udelay(100); | |
5601 | error = e1000_verify_write_ich8_byte(hw, | |
5602 | (i << 1) + new_bank_offset, low_byte); | |
5603 | ||
5604 | if (error != E1000_SUCCESS) | |
5605 | sector_write_failed = TRUE; | |
5606 | else { | |
cd94dd0b AK |
5607 | high_byte = |
5608 | (uint8_t)(hw->eeprom_shadow_ram[i].eeprom_word >> 8); | |
cd94dd0b | 5609 | udelay(100); |
2a88c173 JK |
5610 | } |
5611 | } else { | |
5612 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset, | |
5613 | &low_byte); | |
5614 | udelay(100); | |
5615 | error = e1000_verify_write_ich8_byte(hw, | |
5616 | (i << 1) + new_bank_offset, low_byte); | |
5617 | ||
5618 | if (error != E1000_SUCCESS) | |
5619 | sector_write_failed = TRUE; | |
5620 | else { | |
cd94dd0b AK |
5621 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1, |
5622 | &high_byte); | |
2a88c173 | 5623 | udelay(100); |
cd94dd0b | 5624 | } |
2a88c173 | 5625 | } |
cd94dd0b | 5626 | |
2a88c173 JK |
5627 | /* If the write of the low byte was successful, go ahread and |
5628 | * write the high byte while checking to make sure that if it | |
5629 | * is the signature byte, then it is handled properly */ | |
5630 | if (sector_write_failed == FALSE) { | |
cd94dd0b AK |
5631 | /* If the word is 0x13, then make sure the signature bits |
5632 | * (15:14) are 11b until the commit has completed. | |
5633 | * This will allow us to write 10b which indicates the | |
5634 | * signature is valid. We want to do this after the write | |
5635 | * has completed so that we don't mark the segment valid | |
5636 | * while the write is still in progress */ | |
2df7d59f JK |
5637 | if (i == E1000_ICH_NVM_SIG_WORD) |
5638 | high_byte = E1000_ICH_NVM_SIG_MASK | high_byte; | |
cd94dd0b AK |
5639 | |
5640 | error = e1000_verify_write_ich8_byte(hw, | |
2a88c173 | 5641 | (i << 1) + new_bank_offset + 1, high_byte); |
cd94dd0b AK |
5642 | if (error != E1000_SUCCESS) |
5643 | sector_write_failed = TRUE; | |
5644 | ||
2a88c173 JK |
5645 | } else { |
5646 | /* If the write failed then break from the loop and | |
5647 | * return an error */ | |
5648 | break; | |
cd94dd0b | 5649 | } |
2a88c173 | 5650 | } |
cd94dd0b | 5651 | |
2a88c173 JK |
5652 | /* Don't bother writing the segment valid bits if sector |
5653 | * programming failed. */ | |
5654 | if (sector_write_failed == FALSE) { | |
5655 | /* Finally validate the new segment by setting bit 15:14 | |
5656 | * to 10b in word 0x13 , this can be done without an | |
5657 | * erase as well since these bits are 11 to start with | |
5658 | * and we need to change bit 14 to 0b */ | |
5659 | e1000_read_ich8_byte(hw, | |
2df7d59f | 5660 | E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, |
2a88c173 JK |
5661 | &high_byte); |
5662 | high_byte &= 0xBF; | |
5663 | error = e1000_verify_write_ich8_byte(hw, | |
2df7d59f | 5664 | E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, high_byte); |
2a88c173 JK |
5665 | /* And invalidate the previously valid segment by setting |
5666 | * its signature word (0x13) high_byte to 0b. This can be | |
5667 | * done without an erase because flash erase sets all bits | |
5668 | * to 1's. We can write 1's to 0's without an erase */ | |
5669 | if (error == E1000_SUCCESS) { | |
cd94dd0b | 5670 | error = e1000_verify_write_ich8_byte(hw, |
2df7d59f | 5671 | E1000_ICH_NVM_SIG_WORD * 2 + 1 + old_bank_offset, 0); |
2a88c173 | 5672 | } |
cd94dd0b | 5673 | |
2a88c173 JK |
5674 | /* Clear the now not used entry in the cache */ |
5675 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
5676 | hw->eeprom_shadow_ram[i].modified = FALSE; | |
5677 | hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; | |
cd94dd0b | 5678 | } |
2a88c173 | 5679 | } |
cd94dd0b AK |
5680 | } |
5681 | ||
2d7edb92 MC |
5682 | return error; |
5683 | } | |
5684 | ||
1da177e4 LT |
5685 | /****************************************************************************** |
5686 | * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the | |
5687 | * second function of dual function devices | |
5688 | * | |
5689 | * hw - Struct containing variables accessed by shared code | |
5690 | *****************************************************************************/ | |
5691 | int32_t | |
5692 | e1000_read_mac_addr(struct e1000_hw * hw) | |
5693 | { | |
5694 | uint16_t offset; | |
5695 | uint16_t eeprom_data, i; | |
5696 | ||
5697 | DEBUGFUNC("e1000_read_mac_addr"); | |
5698 | ||
8fc897b0 | 5699 | for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { |
1da177e4 | 5700 | offset = i >> 1; |
8fc897b0 | 5701 | if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { |
1da177e4 LT |
5702 | DEBUGOUT("EEPROM Read Error\n"); |
5703 | return -E1000_ERR_EEPROM; | |
5704 | } | |
5705 | hw->perm_mac_addr[i] = (uint8_t) (eeprom_data & 0x00FF); | |
5706 | hw->perm_mac_addr[i+1] = (uint8_t) (eeprom_data >> 8); | |
5707 | } | |
96838a40 | 5708 | |
868d5309 MC |
5709 | switch (hw->mac_type) { |
5710 | default: | |
5711 | break; | |
5712 | case e1000_82546: | |
5713 | case e1000_82546_rev_3: | |
5714 | case e1000_82571: | |
6418ecc6 | 5715 | case e1000_80003es2lan: |
8fc897b0 | 5716 | if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) |
1da177e4 | 5717 | hw->perm_mac_addr[5] ^= 0x01; |
868d5309 MC |
5718 | break; |
5719 | } | |
1da177e4 | 5720 | |
8fc897b0 | 5721 | for (i = 0; i < NODE_ADDRESS_SIZE; i++) |
1da177e4 LT |
5722 | hw->mac_addr[i] = hw->perm_mac_addr[i]; |
5723 | return E1000_SUCCESS; | |
5724 | } | |
5725 | ||
5726 | /****************************************************************************** | |
5727 | * Initializes receive address filters. | |
5728 | * | |
5729 | * hw - Struct containing variables accessed by shared code | |
5730 | * | |
5731 | * Places the MAC address in receive address register 0 and clears the rest | |
5732 | * of the receive addresss registers. Clears the multicast table. Assumes | |
5733 | * the receiver is in reset when the routine is called. | |
5734 | *****************************************************************************/ | |
3ad2cc67 | 5735 | static void |
1da177e4 LT |
5736 | e1000_init_rx_addrs(struct e1000_hw *hw) |
5737 | { | |
5738 | uint32_t i; | |
2d7edb92 | 5739 | uint32_t rar_num; |
1da177e4 LT |
5740 | |
5741 | DEBUGFUNC("e1000_init_rx_addrs"); | |
5742 | ||
5743 | /* Setup the receive address. */ | |
5744 | DEBUGOUT("Programming MAC Address into RAR[0]\n"); | |
5745 | ||
5746 | e1000_rar_set(hw, hw->mac_addr, 0); | |
5747 | ||
2d7edb92 | 5748 | rar_num = E1000_RAR_ENTRIES; |
868d5309 MC |
5749 | |
5750 | /* Reserve a spot for the Locally Administered Address to work around | |
5751 | * an 82571 issue in which a reset on one port will reload the MAC on | |
5752 | * the other port. */ | |
5753 | if ((hw->mac_type == e1000_82571) && (hw->laa_is_present == TRUE)) | |
5754 | rar_num -= 1; | |
cd94dd0b AK |
5755 | if (hw->mac_type == e1000_ich8lan) |
5756 | rar_num = E1000_RAR_ENTRIES_ICH8LAN; | |
5757 | ||
1da177e4 LT |
5758 | /* Zero out the other 15 receive addresses. */ |
5759 | DEBUGOUT("Clearing RAR[1-15]\n"); | |
8fc897b0 | 5760 | for (i = 1; i < rar_num; i++) { |
1da177e4 | 5761 | E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); |
4ca213a6 | 5762 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5763 | E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); |
4ca213a6 | 5764 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5765 | } |
5766 | } | |
5767 | ||
1da177e4 LT |
5768 | /****************************************************************************** |
5769 | * Hashes an address to determine its location in the multicast table | |
5770 | * | |
5771 | * hw - Struct containing variables accessed by shared code | |
5772 | * mc_addr - the multicast address to hash | |
5773 | *****************************************************************************/ | |
5774 | uint32_t | |
5775 | e1000_hash_mc_addr(struct e1000_hw *hw, | |
5776 | uint8_t *mc_addr) | |
5777 | { | |
5778 | uint32_t hash_value = 0; | |
5779 | ||
5780 | /* The portion of the address that is used for the hash table is | |
5781 | * determined by the mc_filter_type setting. | |
5782 | */ | |
5783 | switch (hw->mc_filter_type) { | |
5784 | /* [0] [1] [2] [3] [4] [5] | |
5785 | * 01 AA 00 12 34 56 | |
5786 | * LSB MSB | |
5787 | */ | |
5788 | case 0: | |
cd94dd0b AK |
5789 | if (hw->mac_type == e1000_ich8lan) { |
5790 | /* [47:38] i.e. 0x158 for above example address */ | |
5791 | hash_value = ((mc_addr[4] >> 6) | (((uint16_t) mc_addr[5]) << 2)); | |
5792 | } else { | |
5793 | /* [47:36] i.e. 0x563 for above example address */ | |
5794 | hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4)); | |
5795 | } | |
1da177e4 LT |
5796 | break; |
5797 | case 1: | |
cd94dd0b AK |
5798 | if (hw->mac_type == e1000_ich8lan) { |
5799 | /* [46:37] i.e. 0x2B1 for above example address */ | |
5800 | hash_value = ((mc_addr[4] >> 5) | (((uint16_t) mc_addr[5]) << 3)); | |
5801 | } else { | |
5802 | /* [46:35] i.e. 0xAC6 for above example address */ | |
5803 | hash_value = ((mc_addr[4] >> 3) | (((uint16_t) mc_addr[5]) << 5)); | |
5804 | } | |
1da177e4 LT |
5805 | break; |
5806 | case 2: | |
cd94dd0b AK |
5807 | if (hw->mac_type == e1000_ich8lan) { |
5808 | /*[45:36] i.e. 0x163 for above example address */ | |
5809 | hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4)); | |
5810 | } else { | |
5811 | /* [45:34] i.e. 0x5D8 for above example address */ | |
5812 | hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6)); | |
5813 | } | |
1da177e4 LT |
5814 | break; |
5815 | case 3: | |
cd94dd0b AK |
5816 | if (hw->mac_type == e1000_ich8lan) { |
5817 | /* [43:34] i.e. 0x18D for above example address */ | |
5818 | hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6)); | |
5819 | } else { | |
5820 | /* [43:32] i.e. 0x634 for above example address */ | |
5821 | hash_value = ((mc_addr[4]) | (((uint16_t) mc_addr[5]) << 8)); | |
5822 | } | |
1da177e4 LT |
5823 | break; |
5824 | } | |
5825 | ||
5826 | hash_value &= 0xFFF; | |
cd94dd0b AK |
5827 | if (hw->mac_type == e1000_ich8lan) |
5828 | hash_value &= 0x3FF; | |
2d7edb92 | 5829 | |
1da177e4 LT |
5830 | return hash_value; |
5831 | } | |
5832 | ||
5833 | /****************************************************************************** | |
5834 | * Sets the bit in the multicast table corresponding to the hash value. | |
5835 | * | |
5836 | * hw - Struct containing variables accessed by shared code | |
5837 | * hash_value - Multicast address hash value | |
5838 | *****************************************************************************/ | |
5839 | void | |
5840 | e1000_mta_set(struct e1000_hw *hw, | |
5841 | uint32_t hash_value) | |
5842 | { | |
5843 | uint32_t hash_bit, hash_reg; | |
5844 | uint32_t mta; | |
5845 | uint32_t temp; | |
5846 | ||
5847 | /* The MTA is a register array of 128 32-bit registers. | |
5848 | * It is treated like an array of 4096 bits. We want to set | |
5849 | * bit BitArray[hash_value]. So we figure out what register | |
5850 | * the bit is in, read it, OR in the new bit, then write | |
5851 | * back the new value. The register is determined by the | |
5852 | * upper 7 bits of the hash value and the bit within that | |
5853 | * register are determined by the lower 5 bits of the value. | |
5854 | */ | |
5855 | hash_reg = (hash_value >> 5) & 0x7F; | |
cd94dd0b AK |
5856 | if (hw->mac_type == e1000_ich8lan) |
5857 | hash_reg &= 0x1F; | |
90fb5135 | 5858 | |
1da177e4 LT |
5859 | hash_bit = hash_value & 0x1F; |
5860 | ||
5861 | mta = E1000_READ_REG_ARRAY(hw, MTA, hash_reg); | |
5862 | ||
5863 | mta |= (1 << hash_bit); | |
5864 | ||
5865 | /* If we are on an 82544 and we are trying to write an odd offset | |
5866 | * in the MTA, save off the previous entry before writing and | |
5867 | * restore the old value after writing. | |
5868 | */ | |
8fc897b0 | 5869 | if ((hw->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) { |
1da177e4 LT |
5870 | temp = E1000_READ_REG_ARRAY(hw, MTA, (hash_reg - 1)); |
5871 | E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); | |
4ca213a6 | 5872 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5873 | E1000_WRITE_REG_ARRAY(hw, MTA, (hash_reg - 1), temp); |
4ca213a6 | 5874 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5875 | } else { |
5876 | E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); | |
4ca213a6 | 5877 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5878 | } |
5879 | } | |
5880 | ||
5881 | /****************************************************************************** | |
5882 | * Puts an ethernet address into a receive address register. | |
5883 | * | |
5884 | * hw - Struct containing variables accessed by shared code | |
5885 | * addr - Address to put into receive address register | |
5886 | * index - Receive address register to write | |
5887 | *****************************************************************************/ | |
5888 | void | |
5889 | e1000_rar_set(struct e1000_hw *hw, | |
5890 | uint8_t *addr, | |
5891 | uint32_t index) | |
5892 | { | |
5893 | uint32_t rar_low, rar_high; | |
5894 | ||
5895 | /* HW expects these in little endian so we reverse the byte order | |
5896 | * from network order (big endian) to little endian | |
5897 | */ | |
5898 | rar_low = ((uint32_t) addr[0] | | |
5899 | ((uint32_t) addr[1] << 8) | | |
5900 | ((uint32_t) addr[2] << 16) | ((uint32_t) addr[3] << 24)); | |
8df06e50 | 5901 | rar_high = ((uint32_t) addr[4] | ((uint32_t) addr[5] << 8)); |
1da177e4 | 5902 | |
8df06e50 JK |
5903 | /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx |
5904 | * unit hang. | |
5905 | * | |
5906 | * Description: | |
5907 | * If there are any Rx frames queued up or otherwise present in the HW | |
5908 | * before RSS is enabled, and then we enable RSS, the HW Rx unit will | |
5909 | * hang. To work around this issue, we have to disable receives and | |
5910 | * flush out all Rx frames before we enable RSS. To do so, we modify we | |
5911 | * redirect all Rx traffic to manageability and then reset the HW. | |
5912 | * This flushes away Rx frames, and (since the redirections to | |
5913 | * manageability persists across resets) keeps new ones from coming in | |
5914 | * while we work. Then, we clear the Address Valid AV bit for all MAC | |
5915 | * addresses and undo the re-direction to manageability. | |
5916 | * Now, frames are coming in again, but the MAC won't accept them, so | |
5917 | * far so good. We now proceed to initialize RSS (if necessary) and | |
5918 | * configure the Rx unit. Last, we re-enable the AV bits and continue | |
5919 | * on our merry way. | |
5920 | */ | |
5921 | switch (hw->mac_type) { | |
5922 | case e1000_82571: | |
5923 | case e1000_82572: | |
6418ecc6 | 5924 | case e1000_80003es2lan: |
8df06e50 JK |
5925 | if (hw->leave_av_bit_off == TRUE) |
5926 | break; | |
5927 | default: | |
5928 | /* Indicate to hardware the Address is Valid. */ | |
5929 | rar_high |= E1000_RAH_AV; | |
5930 | break; | |
5931 | } | |
1da177e4 LT |
5932 | |
5933 | E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); | |
4ca213a6 | 5934 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5935 | E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); |
4ca213a6 | 5936 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5937 | } |
5938 | ||
5939 | /****************************************************************************** | |
5940 | * Writes a value to the specified offset in the VLAN filter table. | |
5941 | * | |
5942 | * hw - Struct containing variables accessed by shared code | |
5943 | * offset - Offset in VLAN filer table to write | |
5944 | * value - Value to write into VLAN filter table | |
5945 | *****************************************************************************/ | |
5946 | void | |
5947 | e1000_write_vfta(struct e1000_hw *hw, | |
5948 | uint32_t offset, | |
5949 | uint32_t value) | |
5950 | { | |
5951 | uint32_t temp; | |
5952 | ||
cd94dd0b AK |
5953 | if (hw->mac_type == e1000_ich8lan) |
5954 | return; | |
5955 | ||
5956 | if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { | |
1da177e4 LT |
5957 | temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); |
5958 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); | |
4ca213a6 | 5959 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5960 | E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); |
4ca213a6 | 5961 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5962 | } else { |
5963 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); | |
4ca213a6 | 5964 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5965 | } |
5966 | } | |
5967 | ||
5968 | /****************************************************************************** | |
5969 | * Clears the VLAN filer table | |
5970 | * | |
5971 | * hw - Struct containing variables accessed by shared code | |
5972 | *****************************************************************************/ | |
3ad2cc67 | 5973 | static void |
1da177e4 LT |
5974 | e1000_clear_vfta(struct e1000_hw *hw) |
5975 | { | |
5976 | uint32_t offset; | |
2d7edb92 MC |
5977 | uint32_t vfta_value = 0; |
5978 | uint32_t vfta_offset = 0; | |
5979 | uint32_t vfta_bit_in_reg = 0; | |
5980 | ||
cd94dd0b AK |
5981 | if (hw->mac_type == e1000_ich8lan) |
5982 | return; | |
5983 | ||
2d7edb92 MC |
5984 | if (hw->mac_type == e1000_82573) { |
5985 | if (hw->mng_cookie.vlan_id != 0) { | |
5986 | /* The VFTA is a 4096b bit-field, each identifying a single VLAN | |
5987 | * ID. The following operations determine which 32b entry | |
5988 | * (i.e. offset) into the array we want to set the VLAN ID | |
5989 | * (i.e. bit) of the manageability unit. */ | |
5990 | vfta_offset = (hw->mng_cookie.vlan_id >> | |
5991 | E1000_VFTA_ENTRY_SHIFT) & | |
5992 | E1000_VFTA_ENTRY_MASK; | |
5993 | vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id & | |
5994 | E1000_VFTA_ENTRY_BIT_SHIFT_MASK); | |
5995 | } | |
5996 | } | |
5997 | for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { | |
5998 | /* If the offset we want to clear is the same offset of the | |
5999 | * manageability VLAN ID, then clear all bits except that of the | |
6000 | * manageability unit */ | |
6001 | vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; | |
6002 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); | |
4ca213a6 | 6003 | E1000_WRITE_FLUSH(hw); |
2d7edb92 | 6004 | } |
1da177e4 LT |
6005 | } |
6006 | ||
3ad2cc67 | 6007 | static int32_t |
1da177e4 LT |
6008 | e1000_id_led_init(struct e1000_hw * hw) |
6009 | { | |
6010 | uint32_t ledctl; | |
6011 | const uint32_t ledctl_mask = 0x000000FF; | |
6012 | const uint32_t ledctl_on = E1000_LEDCTL_MODE_LED_ON; | |
6013 | const uint32_t ledctl_off = E1000_LEDCTL_MODE_LED_OFF; | |
6014 | uint16_t eeprom_data, i, temp; | |
6015 | const uint16_t led_mask = 0x0F; | |
6016 | ||
6017 | DEBUGFUNC("e1000_id_led_init"); | |
6018 | ||
8fc897b0 | 6019 | if (hw->mac_type < e1000_82540) { |
1da177e4 LT |
6020 | /* Nothing to do */ |
6021 | return E1000_SUCCESS; | |
6022 | } | |
6023 | ||
6024 | ledctl = E1000_READ_REG(hw, LEDCTL); | |
6025 | hw->ledctl_default = ledctl; | |
6026 | hw->ledctl_mode1 = hw->ledctl_default; | |
6027 | hw->ledctl_mode2 = hw->ledctl_default; | |
6028 | ||
8fc897b0 | 6029 | if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { |
1da177e4 LT |
6030 | DEBUGOUT("EEPROM Read Error\n"); |
6031 | return -E1000_ERR_EEPROM; | |
6032 | } | |
cd94dd0b AK |
6033 | |
6034 | if ((hw->mac_type == e1000_82573) && | |
6035 | (eeprom_data == ID_LED_RESERVED_82573)) | |
6036 | eeprom_data = ID_LED_DEFAULT_82573; | |
6037 | else if ((eeprom_data == ID_LED_RESERVED_0000) || | |
6038 | (eeprom_data == ID_LED_RESERVED_FFFF)) { | |
6039 | if (hw->mac_type == e1000_ich8lan) | |
6040 | eeprom_data = ID_LED_DEFAULT_ICH8LAN; | |
6041 | else | |
6042 | eeprom_data = ID_LED_DEFAULT; | |
6043 | } | |
90fb5135 | 6044 | |
cd94dd0b | 6045 | for (i = 0; i < 4; i++) { |
1da177e4 | 6046 | temp = (eeprom_data >> (i << 2)) & led_mask; |
8fc897b0 | 6047 | switch (temp) { |
1da177e4 LT |
6048 | case ID_LED_ON1_DEF2: |
6049 | case ID_LED_ON1_ON2: | |
6050 | case ID_LED_ON1_OFF2: | |
6051 | hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); | |
6052 | hw->ledctl_mode1 |= ledctl_on << (i << 3); | |
6053 | break; | |
6054 | case ID_LED_OFF1_DEF2: | |
6055 | case ID_LED_OFF1_ON2: | |
6056 | case ID_LED_OFF1_OFF2: | |
6057 | hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); | |
6058 | hw->ledctl_mode1 |= ledctl_off << (i << 3); | |
6059 | break; | |
6060 | default: | |
6061 | /* Do nothing */ | |
6062 | break; | |
6063 | } | |
8fc897b0 | 6064 | switch (temp) { |
1da177e4 LT |
6065 | case ID_LED_DEF1_ON2: |
6066 | case ID_LED_ON1_ON2: | |
6067 | case ID_LED_OFF1_ON2: | |
6068 | hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); | |
6069 | hw->ledctl_mode2 |= ledctl_on << (i << 3); | |
6070 | break; | |
6071 | case ID_LED_DEF1_OFF2: | |
6072 | case ID_LED_ON1_OFF2: | |
6073 | case ID_LED_OFF1_OFF2: | |
6074 | hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); | |
6075 | hw->ledctl_mode2 |= ledctl_off << (i << 3); | |
6076 | break; | |
6077 | default: | |
6078 | /* Do nothing */ | |
6079 | break; | |
6080 | } | |
6081 | } | |
6082 | return E1000_SUCCESS; | |
6083 | } | |
6084 | ||
6085 | /****************************************************************************** | |
6086 | * Prepares SW controlable LED for use and saves the current state of the LED. | |
6087 | * | |
6088 | * hw - Struct containing variables accessed by shared code | |
6089 | *****************************************************************************/ | |
6090 | int32_t | |
6091 | e1000_setup_led(struct e1000_hw *hw) | |
6092 | { | |
6093 | uint32_t ledctl; | |
6094 | int32_t ret_val = E1000_SUCCESS; | |
6095 | ||
6096 | DEBUGFUNC("e1000_setup_led"); | |
6097 | ||
8fc897b0 | 6098 | switch (hw->mac_type) { |
1da177e4 LT |
6099 | case e1000_82542_rev2_0: |
6100 | case e1000_82542_rev2_1: | |
6101 | case e1000_82543: | |
6102 | case e1000_82544: | |
6103 | /* No setup necessary */ | |
6104 | break; | |
6105 | case e1000_82541: | |
6106 | case e1000_82547: | |
6107 | case e1000_82541_rev_2: | |
6108 | case e1000_82547_rev_2: | |
6109 | /* Turn off PHY Smart Power Down (if enabled) */ | |
6110 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6111 | &hw->phy_spd_default); | |
8fc897b0 | 6112 | if (ret_val) |
1da177e4 LT |
6113 | return ret_val; |
6114 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6115 | (uint16_t)(hw->phy_spd_default & | |
6116 | ~IGP01E1000_GMII_SPD)); | |
8fc897b0 | 6117 | if (ret_val) |
1da177e4 LT |
6118 | return ret_val; |
6119 | /* Fall Through */ | |
6120 | default: | |
8fc897b0 | 6121 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6122 | ledctl = E1000_READ_REG(hw, LEDCTL); |
6123 | /* Save current LEDCTL settings */ | |
6124 | hw->ledctl_default = ledctl; | |
6125 | /* Turn off LED0 */ | |
6126 | ledctl &= ~(E1000_LEDCTL_LED0_IVRT | | |
6127 | E1000_LEDCTL_LED0_BLINK | | |
6128 | E1000_LEDCTL_LED0_MODE_MASK); | |
6129 | ledctl |= (E1000_LEDCTL_MODE_LED_OFF << | |
6130 | E1000_LEDCTL_LED0_MODE_SHIFT); | |
6131 | E1000_WRITE_REG(hw, LEDCTL, ledctl); | |
8fc897b0 | 6132 | } else if (hw->media_type == e1000_media_type_copper) |
1da177e4 LT |
6133 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1); |
6134 | break; | |
6135 | } | |
6136 | ||
6137 | return E1000_SUCCESS; | |
6138 | } | |
6139 | ||
8fc897b0 | 6140 | |
f1b3a853 AK |
6141 | /****************************************************************************** |
6142 | * Used on 82571 and later Si that has LED blink bits. | |
6143 | * Callers must use their own timer and should have already called | |
6144 | * e1000_id_led_init() | |
6145 | * Call e1000_cleanup led() to stop blinking | |
6146 | * | |
6147 | * hw - Struct containing variables accessed by shared code | |
6148 | *****************************************************************************/ | |
6149 | int32_t | |
6150 | e1000_blink_led_start(struct e1000_hw *hw) | |
6151 | { | |
6152 | int16_t i; | |
6153 | uint32_t ledctl_blink = 0; | |
6154 | ||
6155 | DEBUGFUNC("e1000_id_led_blink_on"); | |
6156 | ||
6157 | if (hw->mac_type < e1000_82571) { | |
6158 | /* Nothing to do */ | |
6159 | return E1000_SUCCESS; | |
6160 | } | |
6161 | if (hw->media_type == e1000_media_type_fiber) { | |
6162 | /* always blink LED0 for PCI-E fiber */ | |
6163 | ledctl_blink = E1000_LEDCTL_LED0_BLINK | | |
6164 | (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT); | |
6165 | } else { | |
6166 | /* set the blink bit for each LED that's "on" (0x0E) in ledctl_mode2 */ | |
6167 | ledctl_blink = hw->ledctl_mode2; | |
6168 | for (i=0; i < 4; i++) | |
6169 | if (((hw->ledctl_mode2 >> (i * 8)) & 0xFF) == | |
6170 | E1000_LEDCTL_MODE_LED_ON) | |
6171 | ledctl_blink |= (E1000_LEDCTL_LED0_BLINK << (i * 8)); | |
6172 | } | |
6173 | ||
6174 | E1000_WRITE_REG(hw, LEDCTL, ledctl_blink); | |
6175 | ||
6176 | return E1000_SUCCESS; | |
6177 | } | |
6178 | ||
1da177e4 LT |
6179 | /****************************************************************************** |
6180 | * Restores the saved state of the SW controlable LED. | |
6181 | * | |
6182 | * hw - Struct containing variables accessed by shared code | |
6183 | *****************************************************************************/ | |
6184 | int32_t | |
6185 | e1000_cleanup_led(struct e1000_hw *hw) | |
6186 | { | |
6187 | int32_t ret_val = E1000_SUCCESS; | |
6188 | ||
6189 | DEBUGFUNC("e1000_cleanup_led"); | |
6190 | ||
8fc897b0 | 6191 | switch (hw->mac_type) { |
1da177e4 LT |
6192 | case e1000_82542_rev2_0: |
6193 | case e1000_82542_rev2_1: | |
6194 | case e1000_82543: | |
6195 | case e1000_82544: | |
6196 | /* No cleanup necessary */ | |
6197 | break; | |
6198 | case e1000_82541: | |
6199 | case e1000_82547: | |
6200 | case e1000_82541_rev_2: | |
6201 | case e1000_82547_rev_2: | |
6202 | /* Turn on PHY Smart Power Down (if previously enabled) */ | |
6203 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6204 | hw->phy_spd_default); | |
8fc897b0 | 6205 | if (ret_val) |
1da177e4 LT |
6206 | return ret_val; |
6207 | /* Fall Through */ | |
6208 | default: | |
cd94dd0b AK |
6209 | if (hw->phy_type == e1000_phy_ife) { |
6210 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); | |
6211 | break; | |
6212 | } | |
1da177e4 LT |
6213 | /* Restore LEDCTL settings */ |
6214 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_default); | |
6215 | break; | |
6216 | } | |
6217 | ||
6218 | return E1000_SUCCESS; | |
6219 | } | |
6220 | ||
6221 | /****************************************************************************** | |
6222 | * Turns on the software controllable LED | |
6223 | * | |
6224 | * hw - Struct containing variables accessed by shared code | |
6225 | *****************************************************************************/ | |
6226 | int32_t | |
6227 | e1000_led_on(struct e1000_hw *hw) | |
6228 | { | |
6229 | uint32_t ctrl = E1000_READ_REG(hw, CTRL); | |
6230 | ||
6231 | DEBUGFUNC("e1000_led_on"); | |
6232 | ||
8fc897b0 | 6233 | switch (hw->mac_type) { |
1da177e4 LT |
6234 | case e1000_82542_rev2_0: |
6235 | case e1000_82542_rev2_1: | |
6236 | case e1000_82543: | |
6237 | /* Set SW Defineable Pin 0 to turn on the LED */ | |
6238 | ctrl |= E1000_CTRL_SWDPIN0; | |
6239 | ctrl |= E1000_CTRL_SWDPIO0; | |
6240 | break; | |
6241 | case e1000_82544: | |
8fc897b0 | 6242 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6243 | /* Set SW Defineable Pin 0 to turn on the LED */ |
6244 | ctrl |= E1000_CTRL_SWDPIN0; | |
6245 | ctrl |= E1000_CTRL_SWDPIO0; | |
6246 | } else { | |
6247 | /* Clear SW Defineable Pin 0 to turn on the LED */ | |
6248 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6249 | ctrl |= E1000_CTRL_SWDPIO0; | |
6250 | } | |
6251 | break; | |
6252 | default: | |
8fc897b0 | 6253 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6254 | /* Clear SW Defineable Pin 0 to turn on the LED */ |
6255 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6256 | ctrl |= E1000_CTRL_SWDPIO0; | |
cd94dd0b AK |
6257 | } else if (hw->phy_type == e1000_phy_ife) { |
6258 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
6259 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); | |
6260 | } else if (hw->media_type == e1000_media_type_copper) { | |
1da177e4 LT |
6261 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode2); |
6262 | return E1000_SUCCESS; | |
6263 | } | |
6264 | break; | |
6265 | } | |
6266 | ||
6267 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
6268 | ||
6269 | return E1000_SUCCESS; | |
6270 | } | |
6271 | ||
6272 | /****************************************************************************** | |
6273 | * Turns off the software controllable LED | |
6274 | * | |
6275 | * hw - Struct containing variables accessed by shared code | |
6276 | *****************************************************************************/ | |
6277 | int32_t | |
6278 | e1000_led_off(struct e1000_hw *hw) | |
6279 | { | |
6280 | uint32_t ctrl = E1000_READ_REG(hw, CTRL); | |
6281 | ||
6282 | DEBUGFUNC("e1000_led_off"); | |
6283 | ||
8fc897b0 | 6284 | switch (hw->mac_type) { |
1da177e4 LT |
6285 | case e1000_82542_rev2_0: |
6286 | case e1000_82542_rev2_1: | |
6287 | case e1000_82543: | |
6288 | /* Clear SW Defineable Pin 0 to turn off the LED */ | |
6289 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6290 | ctrl |= E1000_CTRL_SWDPIO0; | |
6291 | break; | |
6292 | case e1000_82544: | |
8fc897b0 | 6293 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6294 | /* Clear SW Defineable Pin 0 to turn off the LED */ |
6295 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6296 | ctrl |= E1000_CTRL_SWDPIO0; | |
6297 | } else { | |
6298 | /* Set SW Defineable Pin 0 to turn off the LED */ | |
6299 | ctrl |= E1000_CTRL_SWDPIN0; | |
6300 | ctrl |= E1000_CTRL_SWDPIO0; | |
6301 | } | |
6302 | break; | |
6303 | default: | |
8fc897b0 | 6304 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6305 | /* Set SW Defineable Pin 0 to turn off the LED */ |
6306 | ctrl |= E1000_CTRL_SWDPIN0; | |
6307 | ctrl |= E1000_CTRL_SWDPIO0; | |
cd94dd0b AK |
6308 | } else if (hw->phy_type == e1000_phy_ife) { |
6309 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
6310 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF)); | |
6311 | } else if (hw->media_type == e1000_media_type_copper) { | |
1da177e4 LT |
6312 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1); |
6313 | return E1000_SUCCESS; | |
6314 | } | |
6315 | break; | |
6316 | } | |
6317 | ||
6318 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
6319 | ||
6320 | return E1000_SUCCESS; | |
6321 | } | |
6322 | ||
6323 | /****************************************************************************** | |
6324 | * Clears all hardware statistics counters. | |
6325 | * | |
6326 | * hw - Struct containing variables accessed by shared code | |
6327 | *****************************************************************************/ | |
35574764 | 6328 | static void |
1da177e4 LT |
6329 | e1000_clear_hw_cntrs(struct e1000_hw *hw) |
6330 | { | |
6331 | volatile uint32_t temp; | |
6332 | ||
6333 | temp = E1000_READ_REG(hw, CRCERRS); | |
6334 | temp = E1000_READ_REG(hw, SYMERRS); | |
6335 | temp = E1000_READ_REG(hw, MPC); | |
6336 | temp = E1000_READ_REG(hw, SCC); | |
6337 | temp = E1000_READ_REG(hw, ECOL); | |
6338 | temp = E1000_READ_REG(hw, MCC); | |
6339 | temp = E1000_READ_REG(hw, LATECOL); | |
6340 | temp = E1000_READ_REG(hw, COLC); | |
6341 | temp = E1000_READ_REG(hw, DC); | |
6342 | temp = E1000_READ_REG(hw, SEC); | |
6343 | temp = E1000_READ_REG(hw, RLEC); | |
6344 | temp = E1000_READ_REG(hw, XONRXC); | |
6345 | temp = E1000_READ_REG(hw, XONTXC); | |
6346 | temp = E1000_READ_REG(hw, XOFFRXC); | |
6347 | temp = E1000_READ_REG(hw, XOFFTXC); | |
6348 | temp = E1000_READ_REG(hw, FCRUC); | |
cd94dd0b AK |
6349 | |
6350 | if (hw->mac_type != e1000_ich8lan) { | |
1da177e4 LT |
6351 | temp = E1000_READ_REG(hw, PRC64); |
6352 | temp = E1000_READ_REG(hw, PRC127); | |
6353 | temp = E1000_READ_REG(hw, PRC255); | |
6354 | temp = E1000_READ_REG(hw, PRC511); | |
6355 | temp = E1000_READ_REG(hw, PRC1023); | |
6356 | temp = E1000_READ_REG(hw, PRC1522); | |
cd94dd0b AK |
6357 | } |
6358 | ||
1da177e4 LT |
6359 | temp = E1000_READ_REG(hw, GPRC); |
6360 | temp = E1000_READ_REG(hw, BPRC); | |
6361 | temp = E1000_READ_REG(hw, MPRC); | |
6362 | temp = E1000_READ_REG(hw, GPTC); | |
6363 | temp = E1000_READ_REG(hw, GORCL); | |
6364 | temp = E1000_READ_REG(hw, GORCH); | |
6365 | temp = E1000_READ_REG(hw, GOTCL); | |
6366 | temp = E1000_READ_REG(hw, GOTCH); | |
6367 | temp = E1000_READ_REG(hw, RNBC); | |
6368 | temp = E1000_READ_REG(hw, RUC); | |
6369 | temp = E1000_READ_REG(hw, RFC); | |
6370 | temp = E1000_READ_REG(hw, ROC); | |
6371 | temp = E1000_READ_REG(hw, RJC); | |
6372 | temp = E1000_READ_REG(hw, TORL); | |
6373 | temp = E1000_READ_REG(hw, TORH); | |
6374 | temp = E1000_READ_REG(hw, TOTL); | |
6375 | temp = E1000_READ_REG(hw, TOTH); | |
6376 | temp = E1000_READ_REG(hw, TPR); | |
6377 | temp = E1000_READ_REG(hw, TPT); | |
cd94dd0b AK |
6378 | |
6379 | if (hw->mac_type != e1000_ich8lan) { | |
1da177e4 LT |
6380 | temp = E1000_READ_REG(hw, PTC64); |
6381 | temp = E1000_READ_REG(hw, PTC127); | |
6382 | temp = E1000_READ_REG(hw, PTC255); | |
6383 | temp = E1000_READ_REG(hw, PTC511); | |
6384 | temp = E1000_READ_REG(hw, PTC1023); | |
6385 | temp = E1000_READ_REG(hw, PTC1522); | |
cd94dd0b AK |
6386 | } |
6387 | ||
1da177e4 LT |
6388 | temp = E1000_READ_REG(hw, MPTC); |
6389 | temp = E1000_READ_REG(hw, BPTC); | |
6390 | ||
8fc897b0 | 6391 | if (hw->mac_type < e1000_82543) return; |
1da177e4 LT |
6392 | |
6393 | temp = E1000_READ_REG(hw, ALGNERRC); | |
6394 | temp = E1000_READ_REG(hw, RXERRC); | |
6395 | temp = E1000_READ_REG(hw, TNCRS); | |
6396 | temp = E1000_READ_REG(hw, CEXTERR); | |
6397 | temp = E1000_READ_REG(hw, TSCTC); | |
6398 | temp = E1000_READ_REG(hw, TSCTFC); | |
6399 | ||
8fc897b0 | 6400 | if (hw->mac_type <= e1000_82544) return; |
1da177e4 LT |
6401 | |
6402 | temp = E1000_READ_REG(hw, MGTPRC); | |
6403 | temp = E1000_READ_REG(hw, MGTPDC); | |
6404 | temp = E1000_READ_REG(hw, MGTPTC); | |
2d7edb92 | 6405 | |
8fc897b0 | 6406 | if (hw->mac_type <= e1000_82547_rev_2) return; |
2d7edb92 MC |
6407 | |
6408 | temp = E1000_READ_REG(hw, IAC); | |
6409 | temp = E1000_READ_REG(hw, ICRXOC); | |
cd94dd0b AK |
6410 | |
6411 | if (hw->mac_type == e1000_ich8lan) return; | |
6412 | ||
2d7edb92 MC |
6413 | temp = E1000_READ_REG(hw, ICRXPTC); |
6414 | temp = E1000_READ_REG(hw, ICRXATC); | |
6415 | temp = E1000_READ_REG(hw, ICTXPTC); | |
6416 | temp = E1000_READ_REG(hw, ICTXATC); | |
6417 | temp = E1000_READ_REG(hw, ICTXQEC); | |
6418 | temp = E1000_READ_REG(hw, ICTXQMTC); | |
6419 | temp = E1000_READ_REG(hw, ICRXDMTC); | |
1da177e4 LT |
6420 | } |
6421 | ||
6422 | /****************************************************************************** | |
6423 | * Resets Adaptive IFS to its default state. | |
6424 | * | |
6425 | * hw - Struct containing variables accessed by shared code | |
6426 | * | |
6427 | * Call this after e1000_init_hw. You may override the IFS defaults by setting | |
6428 | * hw->ifs_params_forced to TRUE. However, you must initialize hw-> | |
6429 | * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio | |
6430 | * before calling this function. | |
6431 | *****************************************************************************/ | |
6432 | void | |
6433 | e1000_reset_adaptive(struct e1000_hw *hw) | |
6434 | { | |
6435 | DEBUGFUNC("e1000_reset_adaptive"); | |
6436 | ||
8fc897b0 AK |
6437 | if (hw->adaptive_ifs) { |
6438 | if (!hw->ifs_params_forced) { | |
1da177e4 LT |
6439 | hw->current_ifs_val = 0; |
6440 | hw->ifs_min_val = IFS_MIN; | |
6441 | hw->ifs_max_val = IFS_MAX; | |
6442 | hw->ifs_step_size = IFS_STEP; | |
6443 | hw->ifs_ratio = IFS_RATIO; | |
6444 | } | |
6445 | hw->in_ifs_mode = FALSE; | |
6446 | E1000_WRITE_REG(hw, AIT, 0); | |
6447 | } else { | |
6448 | DEBUGOUT("Not in Adaptive IFS mode!\n"); | |
6449 | } | |
6450 | } | |
6451 | ||
6452 | /****************************************************************************** | |
6453 | * Called during the callback/watchdog routine to update IFS value based on | |
6454 | * the ratio of transmits to collisions. | |
6455 | * | |
6456 | * hw - Struct containing variables accessed by shared code | |
6457 | * tx_packets - Number of transmits since last callback | |
6458 | * total_collisions - Number of collisions since last callback | |
6459 | *****************************************************************************/ | |
6460 | void | |
6461 | e1000_update_adaptive(struct e1000_hw *hw) | |
6462 | { | |
6463 | DEBUGFUNC("e1000_update_adaptive"); | |
6464 | ||
8fc897b0 AK |
6465 | if (hw->adaptive_ifs) { |
6466 | if ((hw->collision_delta * hw->ifs_ratio) > hw->tx_packet_delta) { | |
6467 | if (hw->tx_packet_delta > MIN_NUM_XMITS) { | |
1da177e4 | 6468 | hw->in_ifs_mode = TRUE; |
8fc897b0 AK |
6469 | if (hw->current_ifs_val < hw->ifs_max_val) { |
6470 | if (hw->current_ifs_val == 0) | |
1da177e4 LT |
6471 | hw->current_ifs_val = hw->ifs_min_val; |
6472 | else | |
6473 | hw->current_ifs_val += hw->ifs_step_size; | |
6474 | E1000_WRITE_REG(hw, AIT, hw->current_ifs_val); | |
6475 | } | |
6476 | } | |
6477 | } else { | |
8fc897b0 | 6478 | if (hw->in_ifs_mode && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { |
1da177e4 LT |
6479 | hw->current_ifs_val = 0; |
6480 | hw->in_ifs_mode = FALSE; | |
6481 | E1000_WRITE_REG(hw, AIT, 0); | |
6482 | } | |
6483 | } | |
6484 | } else { | |
6485 | DEBUGOUT("Not in Adaptive IFS mode!\n"); | |
6486 | } | |
6487 | } | |
6488 | ||
6489 | /****************************************************************************** | |
6490 | * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT | |
6491 | * | |
6492 | * hw - Struct containing variables accessed by shared code | |
6493 | * frame_len - The length of the frame in question | |
6494 | * mac_addr - The Ethernet destination address of the frame in question | |
6495 | *****************************************************************************/ | |
6496 | void | |
6497 | e1000_tbi_adjust_stats(struct e1000_hw *hw, | |
6498 | struct e1000_hw_stats *stats, | |
6499 | uint32_t frame_len, | |
6500 | uint8_t *mac_addr) | |
6501 | { | |
6502 | uint64_t carry_bit; | |
6503 | ||
6504 | /* First adjust the frame length. */ | |
6505 | frame_len--; | |
6506 | /* We need to adjust the statistics counters, since the hardware | |
6507 | * counters overcount this packet as a CRC error and undercount | |
6508 | * the packet as a good packet | |
6509 | */ | |
6510 | /* This packet should not be counted as a CRC error. */ | |
6511 | stats->crcerrs--; | |
6512 | /* This packet does count as a Good Packet Received. */ | |
6513 | stats->gprc++; | |
6514 | ||
6515 | /* Adjust the Good Octets received counters */ | |
6516 | carry_bit = 0x80000000 & stats->gorcl; | |
6517 | stats->gorcl += frame_len; | |
6518 | /* If the high bit of Gorcl (the low 32 bits of the Good Octets | |
6519 | * Received Count) was one before the addition, | |
6520 | * AND it is zero after, then we lost the carry out, | |
6521 | * need to add one to Gorch (Good Octets Received Count High). | |
6522 | * This could be simplified if all environments supported | |
6523 | * 64-bit integers. | |
6524 | */ | |
8fc897b0 | 6525 | if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) |
1da177e4 LT |
6526 | stats->gorch++; |
6527 | /* Is this a broadcast or multicast? Check broadcast first, | |
6528 | * since the test for a multicast frame will test positive on | |
6529 | * a broadcast frame. | |
6530 | */ | |
8fc897b0 | 6531 | if ((mac_addr[0] == (uint8_t) 0xff) && (mac_addr[1] == (uint8_t) 0xff)) |
1da177e4 LT |
6532 | /* Broadcast packet */ |
6533 | stats->bprc++; | |
8fc897b0 | 6534 | else if (*mac_addr & 0x01) |
1da177e4 LT |
6535 | /* Multicast packet */ |
6536 | stats->mprc++; | |
6537 | ||
8fc897b0 | 6538 | if (frame_len == hw->max_frame_size) { |
1da177e4 LT |
6539 | /* In this case, the hardware has overcounted the number of |
6540 | * oversize frames. | |
6541 | */ | |
8fc897b0 | 6542 | if (stats->roc > 0) |
1da177e4 LT |
6543 | stats->roc--; |
6544 | } | |
6545 | ||
6546 | /* Adjust the bin counters when the extra byte put the frame in the | |
6547 | * wrong bin. Remember that the frame_len was adjusted above. | |
6548 | */ | |
8fc897b0 | 6549 | if (frame_len == 64) { |
1da177e4 LT |
6550 | stats->prc64++; |
6551 | stats->prc127--; | |
8fc897b0 | 6552 | } else if (frame_len == 127) { |
1da177e4 LT |
6553 | stats->prc127++; |
6554 | stats->prc255--; | |
8fc897b0 | 6555 | } else if (frame_len == 255) { |
1da177e4 LT |
6556 | stats->prc255++; |
6557 | stats->prc511--; | |
8fc897b0 | 6558 | } else if (frame_len == 511) { |
1da177e4 LT |
6559 | stats->prc511++; |
6560 | stats->prc1023--; | |
8fc897b0 | 6561 | } else if (frame_len == 1023) { |
1da177e4 LT |
6562 | stats->prc1023++; |
6563 | stats->prc1522--; | |
8fc897b0 | 6564 | } else if (frame_len == 1522) { |
1da177e4 LT |
6565 | stats->prc1522++; |
6566 | } | |
6567 | } | |
6568 | ||
6569 | /****************************************************************************** | |
6570 | * Gets the current PCI bus type, speed, and width of the hardware | |
6571 | * | |
6572 | * hw - Struct containing variables accessed by shared code | |
6573 | *****************************************************************************/ | |
6574 | void | |
6575 | e1000_get_bus_info(struct e1000_hw *hw) | |
6576 | { | |
caeccb68 JK |
6577 | int32_t ret_val; |
6578 | uint16_t pci_ex_link_status; | |
1da177e4 LT |
6579 | uint32_t status; |
6580 | ||
6581 | switch (hw->mac_type) { | |
6582 | case e1000_82542_rev2_0: | |
6583 | case e1000_82542_rev2_1: | |
6584 | hw->bus_type = e1000_bus_type_unknown; | |
6585 | hw->bus_speed = e1000_bus_speed_unknown; | |
6586 | hw->bus_width = e1000_bus_width_unknown; | |
6587 | break; | |
caeccb68 | 6588 | case e1000_82571: |
868d5309 | 6589 | case e1000_82572: |
2d7edb92 | 6590 | case e1000_82573: |
caeccb68 | 6591 | case e1000_80003es2lan: |
fd803241 JK |
6592 | hw->bus_type = e1000_bus_type_pci_express; |
6593 | hw->bus_speed = e1000_bus_speed_2500; | |
caeccb68 JK |
6594 | ret_val = e1000_read_pcie_cap_reg(hw, |
6595 | PCI_EX_LINK_STATUS, | |
6596 | &pci_ex_link_status); | |
6597 | if (ret_val) | |
6598 | hw->bus_width = e1000_bus_width_unknown; | |
6599 | else | |
6600 | hw->bus_width = (pci_ex_link_status & PCI_EX_LINK_WIDTH_MASK) >> | |
6601 | PCI_EX_LINK_WIDTH_SHIFT; | |
fd803241 | 6602 | break; |
cd94dd0b | 6603 | case e1000_ich8lan: |
2d7edb92 MC |
6604 | hw->bus_type = e1000_bus_type_pci_express; |
6605 | hw->bus_speed = e1000_bus_speed_2500; | |
caeccb68 | 6606 | hw->bus_width = e1000_bus_width_pciex_1; |
2d7edb92 | 6607 | break; |
1da177e4 LT |
6608 | default: |
6609 | status = E1000_READ_REG(hw, STATUS); | |
6610 | hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? | |
6611 | e1000_bus_type_pcix : e1000_bus_type_pci; | |
6612 | ||
8fc897b0 | 6613 | if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { |
1da177e4 LT |
6614 | hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? |
6615 | e1000_bus_speed_66 : e1000_bus_speed_120; | |
8fc897b0 | 6616 | } else if (hw->bus_type == e1000_bus_type_pci) { |
1da177e4 LT |
6617 | hw->bus_speed = (status & E1000_STATUS_PCI66) ? |
6618 | e1000_bus_speed_66 : e1000_bus_speed_33; | |
6619 | } else { | |
6620 | switch (status & E1000_STATUS_PCIX_SPEED) { | |
6621 | case E1000_STATUS_PCIX_SPEED_66: | |
6622 | hw->bus_speed = e1000_bus_speed_66; | |
6623 | break; | |
6624 | case E1000_STATUS_PCIX_SPEED_100: | |
6625 | hw->bus_speed = e1000_bus_speed_100; | |
6626 | break; | |
6627 | case E1000_STATUS_PCIX_SPEED_133: | |
6628 | hw->bus_speed = e1000_bus_speed_133; | |
6629 | break; | |
6630 | default: | |
6631 | hw->bus_speed = e1000_bus_speed_reserved; | |
6632 | break; | |
6633 | } | |
6634 | } | |
6635 | hw->bus_width = (status & E1000_STATUS_BUS64) ? | |
6636 | e1000_bus_width_64 : e1000_bus_width_32; | |
6637 | break; | |
6638 | } | |
6639 | } | |
1da177e4 LT |
6640 | |
6641 | /****************************************************************************** | |
6642 | * Writes a value to one of the devices registers using port I/O (as opposed to | |
6643 | * memory mapped I/O). Only 82544 and newer devices support port I/O. | |
6644 | * | |
6645 | * hw - Struct containing variables accessed by shared code | |
6646 | * offset - offset to write to | |
6647 | * value - value to write | |
6648 | *****************************************************************************/ | |
3ad2cc67 | 6649 | static void |
1da177e4 LT |
6650 | e1000_write_reg_io(struct e1000_hw *hw, |
6651 | uint32_t offset, | |
6652 | uint32_t value) | |
6653 | { | |
6654 | unsigned long io_addr = hw->io_base; | |
6655 | unsigned long io_data = hw->io_base + 4; | |
6656 | ||
6657 | e1000_io_write(hw, io_addr, offset); | |
6658 | e1000_io_write(hw, io_data, value); | |
6659 | } | |
6660 | ||
1da177e4 LT |
6661 | /****************************************************************************** |
6662 | * Estimates the cable length. | |
6663 | * | |
6664 | * hw - Struct containing variables accessed by shared code | |
6665 | * min_length - The estimated minimum length | |
6666 | * max_length - The estimated maximum length | |
6667 | * | |
6668 | * returns: - E1000_ERR_XXX | |
6669 | * E1000_SUCCESS | |
6670 | * | |
6671 | * This function always returns a ranged length (minimum & maximum). | |
6672 | * So for M88 phy's, this function interprets the one value returned from the | |
6673 | * register to the minimum and maximum range. | |
6674 | * For IGP phy's, the function calculates the range by the AGC registers. | |
6675 | *****************************************************************************/ | |
3ad2cc67 | 6676 | static int32_t |
1da177e4 LT |
6677 | e1000_get_cable_length(struct e1000_hw *hw, |
6678 | uint16_t *min_length, | |
6679 | uint16_t *max_length) | |
6680 | { | |
6681 | int32_t ret_val; | |
6682 | uint16_t agc_value = 0; | |
1da177e4 LT |
6683 | uint16_t i, phy_data; |
6684 | uint16_t cable_length; | |
6685 | ||
6686 | DEBUGFUNC("e1000_get_cable_length"); | |
6687 | ||
6688 | *min_length = *max_length = 0; | |
6689 | ||
6690 | /* Use old method for Phy older than IGP */ | |
8fc897b0 | 6691 | if (hw->phy_type == e1000_phy_m88) { |
2d7edb92 | 6692 | |
1da177e4 LT |
6693 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, |
6694 | &phy_data); | |
8fc897b0 | 6695 | if (ret_val) |
1da177e4 LT |
6696 | return ret_val; |
6697 | cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> | |
6698 | M88E1000_PSSR_CABLE_LENGTH_SHIFT; | |
6699 | ||
6700 | /* Convert the enum value to ranged values */ | |
6701 | switch (cable_length) { | |
6702 | case e1000_cable_length_50: | |
6703 | *min_length = 0; | |
6704 | *max_length = e1000_igp_cable_length_50; | |
6705 | break; | |
6706 | case e1000_cable_length_50_80: | |
6707 | *min_length = e1000_igp_cable_length_50; | |
6708 | *max_length = e1000_igp_cable_length_80; | |
6709 | break; | |
6710 | case e1000_cable_length_80_110: | |
6711 | *min_length = e1000_igp_cable_length_80; | |
6712 | *max_length = e1000_igp_cable_length_110; | |
6713 | break; | |
6714 | case e1000_cable_length_110_140: | |
6715 | *min_length = e1000_igp_cable_length_110; | |
6716 | *max_length = e1000_igp_cable_length_140; | |
6717 | break; | |
6718 | case e1000_cable_length_140: | |
6719 | *min_length = e1000_igp_cable_length_140; | |
6720 | *max_length = e1000_igp_cable_length_170; | |
6721 | break; | |
6722 | default: | |
6723 | return -E1000_ERR_PHY; | |
6724 | break; | |
6725 | } | |
6418ecc6 JK |
6726 | } else if (hw->phy_type == e1000_phy_gg82563) { |
6727 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, | |
6728 | &phy_data); | |
6729 | if (ret_val) | |
6730 | return ret_val; | |
6731 | cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH; | |
6732 | ||
6733 | switch (cable_length) { | |
6734 | case e1000_gg_cable_length_60: | |
6735 | *min_length = 0; | |
6736 | *max_length = e1000_igp_cable_length_60; | |
6737 | break; | |
6738 | case e1000_gg_cable_length_60_115: | |
6739 | *min_length = e1000_igp_cable_length_60; | |
6740 | *max_length = e1000_igp_cable_length_115; | |
6741 | break; | |
6742 | case e1000_gg_cable_length_115_150: | |
6743 | *min_length = e1000_igp_cable_length_115; | |
6744 | *max_length = e1000_igp_cable_length_150; | |
6745 | break; | |
6746 | case e1000_gg_cable_length_150: | |
6747 | *min_length = e1000_igp_cable_length_150; | |
6748 | *max_length = e1000_igp_cable_length_180; | |
6749 | break; | |
6750 | default: | |
6751 | return -E1000_ERR_PHY; | |
6752 | break; | |
6753 | } | |
8fc897b0 | 6754 | } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ |
cd94dd0b AK |
6755 | uint16_t cur_agc_value; |
6756 | uint16_t min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; | |
1da177e4 LT |
6757 | uint16_t agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = |
6758 | {IGP01E1000_PHY_AGC_A, | |
6759 | IGP01E1000_PHY_AGC_B, | |
6760 | IGP01E1000_PHY_AGC_C, | |
6761 | IGP01E1000_PHY_AGC_D}; | |
6762 | /* Read the AGC registers for all channels */ | |
8fc897b0 | 6763 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 LT |
6764 | |
6765 | ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); | |
8fc897b0 | 6766 | if (ret_val) |
1da177e4 LT |
6767 | return ret_val; |
6768 | ||
cd94dd0b | 6769 | cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; |
1da177e4 | 6770 | |
cd94dd0b AK |
6771 | /* Value bound check. */ |
6772 | if ((cur_agc_value >= IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) || | |
6773 | (cur_agc_value == 0)) | |
1da177e4 LT |
6774 | return -E1000_ERR_PHY; |
6775 | ||
cd94dd0b | 6776 | agc_value += cur_agc_value; |
1da177e4 LT |
6777 | |
6778 | /* Update minimal AGC value. */ | |
cd94dd0b AK |
6779 | if (min_agc_value > cur_agc_value) |
6780 | min_agc_value = cur_agc_value; | |
1da177e4 LT |
6781 | } |
6782 | ||
6783 | /* Remove the minimal AGC result for length < 50m */ | |
cd94dd0b AK |
6784 | if (agc_value < IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { |
6785 | agc_value -= min_agc_value; | |
1da177e4 LT |
6786 | |
6787 | /* Get the average length of the remaining 3 channels */ | |
6788 | agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); | |
6789 | } else { | |
6790 | /* Get the average length of all the 4 channels. */ | |
6791 | agc_value /= IGP01E1000_PHY_CHANNEL_NUM; | |
6792 | } | |
6793 | ||
6794 | /* Set the range of the calculated length. */ | |
6795 | *min_length = ((e1000_igp_cable_length_table[agc_value] - | |
6796 | IGP01E1000_AGC_RANGE) > 0) ? | |
6797 | (e1000_igp_cable_length_table[agc_value] - | |
6798 | IGP01E1000_AGC_RANGE) : 0; | |
6799 | *max_length = e1000_igp_cable_length_table[agc_value] + | |
6800 | IGP01E1000_AGC_RANGE; | |
cd94dd0b AK |
6801 | } else if (hw->phy_type == e1000_phy_igp_2 || |
6802 | hw->phy_type == e1000_phy_igp_3) { | |
6803 | uint16_t cur_agc_index, max_agc_index = 0; | |
6804 | uint16_t min_agc_index = IGP02E1000_AGC_LENGTH_TABLE_SIZE - 1; | |
868d5309 MC |
6805 | uint16_t agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = |
6806 | {IGP02E1000_PHY_AGC_A, | |
6807 | IGP02E1000_PHY_AGC_B, | |
6808 | IGP02E1000_PHY_AGC_C, | |
6809 | IGP02E1000_PHY_AGC_D}; | |
6810 | /* Read the AGC registers for all channels */ | |
6811 | for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) { | |
6812 | ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); | |
6813 | if (ret_val) | |
6814 | return ret_val; | |
6815 | ||
8fc897b0 | 6816 | /* Getting bits 15:9, which represent the combination of course and |
868d5309 MC |
6817 | * fine gain values. The result is a number that can be put into |
6818 | * the lookup table to obtain the approximate cable length. */ | |
cd94dd0b AK |
6819 | cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & |
6820 | IGP02E1000_AGC_LENGTH_MASK; | |
868d5309 | 6821 | |
cd94dd0b AK |
6822 | /* Array index bound check. */ |
6823 | if ((cur_agc_index >= IGP02E1000_AGC_LENGTH_TABLE_SIZE) || | |
6824 | (cur_agc_index == 0)) | |
6825 | return -E1000_ERR_PHY; | |
868d5309 | 6826 | |
cd94dd0b AK |
6827 | /* Remove min & max AGC values from calculation. */ |
6828 | if (e1000_igp_2_cable_length_table[min_agc_index] > | |
6829 | e1000_igp_2_cable_length_table[cur_agc_index]) | |
6830 | min_agc_index = cur_agc_index; | |
6831 | if (e1000_igp_2_cable_length_table[max_agc_index] < | |
6832 | e1000_igp_2_cable_length_table[cur_agc_index]) | |
6833 | max_agc_index = cur_agc_index; | |
6834 | ||
6835 | agc_value += e1000_igp_2_cable_length_table[cur_agc_index]; | |
868d5309 MC |
6836 | } |
6837 | ||
cd94dd0b AK |
6838 | agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] + |
6839 | e1000_igp_2_cable_length_table[max_agc_index]); | |
868d5309 MC |
6840 | agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2); |
6841 | ||
6842 | /* Calculate cable length with the error range of +/- 10 meters. */ | |
6843 | *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ? | |
6844 | (agc_value - IGP02E1000_AGC_RANGE) : 0; | |
6845 | *max_length = agc_value + IGP02E1000_AGC_RANGE; | |
1da177e4 LT |
6846 | } |
6847 | ||
6848 | return E1000_SUCCESS; | |
6849 | } | |
6850 | ||
6851 | /****************************************************************************** | |
6852 | * Check the cable polarity | |
6853 | * | |
6854 | * hw - Struct containing variables accessed by shared code | |
6855 | * polarity - output parameter : 0 - Polarity is not reversed | |
6856 | * 1 - Polarity is reversed. | |
6857 | * | |
6858 | * returns: - E1000_ERR_XXX | |
6859 | * E1000_SUCCESS | |
6860 | * | |
6861 | * For phy's older then IGP, this function simply reads the polarity bit in the | |
6862 | * Phy Status register. For IGP phy's, this bit is valid only if link speed is | |
6863 | * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will | |
6864 | * return 0. If the link speed is 1000 Mbps the polarity status is in the | |
6865 | * IGP01E1000_PHY_PCS_INIT_REG. | |
6866 | *****************************************************************************/ | |
3ad2cc67 | 6867 | static int32_t |
1da177e4 | 6868 | e1000_check_polarity(struct e1000_hw *hw, |
70c6f30a | 6869 | e1000_rev_polarity *polarity) |
1da177e4 LT |
6870 | { |
6871 | int32_t ret_val; | |
6872 | uint16_t phy_data; | |
6873 | ||
6874 | DEBUGFUNC("e1000_check_polarity"); | |
6875 | ||
6418ecc6 JK |
6876 | if ((hw->phy_type == e1000_phy_m88) || |
6877 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 LT |
6878 | /* return the Polarity bit in the Status register. */ |
6879 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, | |
6880 | &phy_data); | |
8fc897b0 | 6881 | if (ret_val) |
1da177e4 | 6882 | return ret_val; |
70c6f30a JK |
6883 | *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >> |
6884 | M88E1000_PSSR_REV_POLARITY_SHIFT) ? | |
6885 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
6886 | ||
cd94dd0b AK |
6887 | } else if (hw->phy_type == e1000_phy_igp || |
6888 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 6889 | hw->phy_type == e1000_phy_igp_2) { |
1da177e4 LT |
6890 | /* Read the Status register to check the speed */ |
6891 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, | |
6892 | &phy_data); | |
8fc897b0 | 6893 | if (ret_val) |
1da177e4 LT |
6894 | return ret_val; |
6895 | ||
6896 | /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to | |
6897 | * find the polarity status */ | |
8fc897b0 | 6898 | if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == |
1da177e4 LT |
6899 | IGP01E1000_PSSR_SPEED_1000MBPS) { |
6900 | ||
6901 | /* Read the GIG initialization PCS register (0x00B4) */ | |
6902 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, | |
6903 | &phy_data); | |
8fc897b0 | 6904 | if (ret_val) |
1da177e4 LT |
6905 | return ret_val; |
6906 | ||
6907 | /* Check the polarity bits */ | |
70c6f30a JK |
6908 | *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? |
6909 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
1da177e4 LT |
6910 | } else { |
6911 | /* For 10 Mbps, read the polarity bit in the status register. (for | |
6912 | * 100 Mbps this bit is always 0) */ | |
70c6f30a JK |
6913 | *polarity = (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ? |
6914 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
1da177e4 | 6915 | } |
cd94dd0b AK |
6916 | } else if (hw->phy_type == e1000_phy_ife) { |
6917 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_EXTENDED_STATUS_CONTROL, | |
6918 | &phy_data); | |
6919 | if (ret_val) | |
6920 | return ret_val; | |
70c6f30a JK |
6921 | *polarity = ((phy_data & IFE_PESC_POLARITY_REVERSED) >> |
6922 | IFE_PESC_POLARITY_REVERSED_SHIFT) ? | |
6923 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
1da177e4 LT |
6924 | } |
6925 | return E1000_SUCCESS; | |
6926 | } | |
6927 | ||
6928 | /****************************************************************************** | |
6929 | * Check if Downshift occured | |
6930 | * | |
6931 | * hw - Struct containing variables accessed by shared code | |
6932 | * downshift - output parameter : 0 - No Downshift ocured. | |
6933 | * 1 - Downshift ocured. | |
6934 | * | |
6935 | * returns: - E1000_ERR_XXX | |
76c224bc | 6936 | * E1000_SUCCESS |
1da177e4 LT |
6937 | * |
6938 | * For phy's older then IGP, this function reads the Downshift bit in the Phy | |
6939 | * Specific Status register. For IGP phy's, it reads the Downgrade bit in the | |
6940 | * Link Health register. In IGP this bit is latched high, so the driver must | |
6941 | * read it immediately after link is established. | |
6942 | *****************************************************************************/ | |
3ad2cc67 | 6943 | static int32_t |
1da177e4 LT |
6944 | e1000_check_downshift(struct e1000_hw *hw) |
6945 | { | |
6946 | int32_t ret_val; | |
6947 | uint16_t phy_data; | |
6948 | ||
6949 | DEBUGFUNC("e1000_check_downshift"); | |
6950 | ||
cd94dd0b AK |
6951 | if (hw->phy_type == e1000_phy_igp || |
6952 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 6953 | hw->phy_type == e1000_phy_igp_2) { |
1da177e4 LT |
6954 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, |
6955 | &phy_data); | |
8fc897b0 | 6956 | if (ret_val) |
1da177e4 LT |
6957 | return ret_val; |
6958 | ||
6959 | hw->speed_downgraded = (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; | |
6418ecc6 JK |
6960 | } else if ((hw->phy_type == e1000_phy_m88) || |
6961 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 LT |
6962 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, |
6963 | &phy_data); | |
8fc897b0 | 6964 | if (ret_val) |
1da177e4 LT |
6965 | return ret_val; |
6966 | ||
6967 | hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> | |
6968 | M88E1000_PSSR_DOWNSHIFT_SHIFT; | |
cd94dd0b AK |
6969 | } else if (hw->phy_type == e1000_phy_ife) { |
6970 | /* e1000_phy_ife supports 10/100 speed only */ | |
6971 | hw->speed_downgraded = FALSE; | |
1da177e4 | 6972 | } |
2d7edb92 | 6973 | |
1da177e4 LT |
6974 | return E1000_SUCCESS; |
6975 | } | |
6976 | ||
6977 | /***************************************************************************** | |
6978 | * | |
6979 | * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a | |
6980 | * gigabit link is achieved to improve link quality. | |
6981 | * | |
6982 | * hw: Struct containing variables accessed by shared code | |
6983 | * | |
6984 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
6985 | * E1000_SUCCESS at any other case. | |
6986 | * | |
6987 | ****************************************************************************/ | |
6988 | ||
3ad2cc67 | 6989 | static int32_t |
1da177e4 LT |
6990 | e1000_config_dsp_after_link_change(struct e1000_hw *hw, |
6991 | boolean_t link_up) | |
6992 | { | |
6993 | int32_t ret_val; | |
6994 | uint16_t phy_data, phy_saved_data, speed, duplex, i; | |
6995 | uint16_t dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = | |
6996 | {IGP01E1000_PHY_AGC_PARAM_A, | |
6997 | IGP01E1000_PHY_AGC_PARAM_B, | |
6998 | IGP01E1000_PHY_AGC_PARAM_C, | |
6999 | IGP01E1000_PHY_AGC_PARAM_D}; | |
7000 | uint16_t min_length, max_length; | |
7001 | ||
7002 | DEBUGFUNC("e1000_config_dsp_after_link_change"); | |
7003 | ||
8fc897b0 | 7004 | if (hw->phy_type != e1000_phy_igp) |
1da177e4 LT |
7005 | return E1000_SUCCESS; |
7006 | ||
8fc897b0 | 7007 | if (link_up) { |
1da177e4 | 7008 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); |
8fc897b0 | 7009 | if (ret_val) { |
1da177e4 LT |
7010 | DEBUGOUT("Error getting link speed and duplex\n"); |
7011 | return ret_val; | |
7012 | } | |
7013 | ||
8fc897b0 | 7014 | if (speed == SPEED_1000) { |
1da177e4 | 7015 | |
cd94dd0b AK |
7016 | ret_val = e1000_get_cable_length(hw, &min_length, &max_length); |
7017 | if (ret_val) | |
7018 | return ret_val; | |
1da177e4 | 7019 | |
8fc897b0 | 7020 | if ((hw->dsp_config_state == e1000_dsp_config_enabled) && |
1da177e4 LT |
7021 | min_length >= e1000_igp_cable_length_50) { |
7022 | ||
8fc897b0 | 7023 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 LT |
7024 | ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], |
7025 | &phy_data); | |
8fc897b0 | 7026 | if (ret_val) |
1da177e4 LT |
7027 | return ret_val; |
7028 | ||
7029 | phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; | |
7030 | ||
7031 | ret_val = e1000_write_phy_reg(hw, dsp_reg_array[i], | |
7032 | phy_data); | |
8fc897b0 | 7033 | if (ret_val) |
1da177e4 LT |
7034 | return ret_val; |
7035 | } | |
7036 | hw->dsp_config_state = e1000_dsp_config_activated; | |
7037 | } | |
7038 | ||
8fc897b0 | 7039 | if ((hw->ffe_config_state == e1000_ffe_config_enabled) && |
1da177e4 LT |
7040 | (min_length < e1000_igp_cable_length_50)) { |
7041 | ||
7042 | uint16_t ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_20; | |
7043 | uint32_t idle_errs = 0; | |
7044 | ||
7045 | /* clear previous idle error counts */ | |
7046 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, | |
7047 | &phy_data); | |
8fc897b0 | 7048 | if (ret_val) |
1da177e4 LT |
7049 | return ret_val; |
7050 | ||
8fc897b0 | 7051 | for (i = 0; i < ffe_idle_err_timeout; i++) { |
1da177e4 LT |
7052 | udelay(1000); |
7053 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, | |
7054 | &phy_data); | |
8fc897b0 | 7055 | if (ret_val) |
1da177e4 LT |
7056 | return ret_val; |
7057 | ||
7058 | idle_errs += (phy_data & SR_1000T_IDLE_ERROR_CNT); | |
8fc897b0 | 7059 | if (idle_errs > SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) { |
1da177e4 LT |
7060 | hw->ffe_config_state = e1000_ffe_config_active; |
7061 | ||
7062 | ret_val = e1000_write_phy_reg(hw, | |
7063 | IGP01E1000_PHY_DSP_FFE, | |
7064 | IGP01E1000_PHY_DSP_FFE_CM_CP); | |
8fc897b0 | 7065 | if (ret_val) |
1da177e4 LT |
7066 | return ret_val; |
7067 | break; | |
7068 | } | |
7069 | ||
8fc897b0 | 7070 | if (idle_errs) |
1da177e4 LT |
7071 | ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_100; |
7072 | } | |
7073 | } | |
7074 | } | |
7075 | } else { | |
8fc897b0 | 7076 | if (hw->dsp_config_state == e1000_dsp_config_activated) { |
1da177e4 LT |
7077 | /* Save off the current value of register 0x2F5B to be restored at |
7078 | * the end of the routines. */ | |
7079 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
7080 | ||
8fc897b0 | 7081 | if (ret_val) |
1da177e4 LT |
7082 | return ret_val; |
7083 | ||
7084 | /* Disable the PHY transmitter */ | |
7085 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
7086 | ||
8fc897b0 | 7087 | if (ret_val) |
1da177e4 LT |
7088 | return ret_val; |
7089 | ||
f8ec4733 | 7090 | mdelay(20); |
1da177e4 LT |
7091 | |
7092 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7093 | IGP01E1000_IEEE_FORCE_GIGA); | |
8fc897b0 | 7094 | if (ret_val) |
1da177e4 | 7095 | return ret_val; |
8fc897b0 | 7096 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 | 7097 | ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], &phy_data); |
8fc897b0 | 7098 | if (ret_val) |
1da177e4 LT |
7099 | return ret_val; |
7100 | ||
7101 | phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; | |
7102 | phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; | |
7103 | ||
7104 | ret_val = e1000_write_phy_reg(hw,dsp_reg_array[i], phy_data); | |
8fc897b0 | 7105 | if (ret_val) |
1da177e4 LT |
7106 | return ret_val; |
7107 | } | |
7108 | ||
7109 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7110 | IGP01E1000_IEEE_RESTART_AUTONEG); | |
8fc897b0 | 7111 | if (ret_val) |
1da177e4 LT |
7112 | return ret_val; |
7113 | ||
f8ec4733 | 7114 | mdelay(20); |
1da177e4 LT |
7115 | |
7116 | /* Now enable the transmitter */ | |
7117 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
7118 | ||
8fc897b0 | 7119 | if (ret_val) |
1da177e4 LT |
7120 | return ret_val; |
7121 | ||
7122 | hw->dsp_config_state = e1000_dsp_config_enabled; | |
7123 | } | |
7124 | ||
8fc897b0 | 7125 | if (hw->ffe_config_state == e1000_ffe_config_active) { |
1da177e4 LT |
7126 | /* Save off the current value of register 0x2F5B to be restored at |
7127 | * the end of the routines. */ | |
7128 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
7129 | ||
8fc897b0 | 7130 | if (ret_val) |
1da177e4 LT |
7131 | return ret_val; |
7132 | ||
7133 | /* Disable the PHY transmitter */ | |
7134 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
7135 | ||
8fc897b0 | 7136 | if (ret_val) |
1da177e4 LT |
7137 | return ret_val; |
7138 | ||
f8ec4733 | 7139 | mdelay(20); |
1da177e4 LT |
7140 | |
7141 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7142 | IGP01E1000_IEEE_FORCE_GIGA); | |
8fc897b0 | 7143 | if (ret_val) |
1da177e4 LT |
7144 | return ret_val; |
7145 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, | |
7146 | IGP01E1000_PHY_DSP_FFE_DEFAULT); | |
8fc897b0 | 7147 | if (ret_val) |
1da177e4 LT |
7148 | return ret_val; |
7149 | ||
7150 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7151 | IGP01E1000_IEEE_RESTART_AUTONEG); | |
8fc897b0 | 7152 | if (ret_val) |
1da177e4 LT |
7153 | return ret_val; |
7154 | ||
f8ec4733 | 7155 | mdelay(20); |
1da177e4 LT |
7156 | |
7157 | /* Now enable the transmitter */ | |
7158 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
7159 | ||
8fc897b0 | 7160 | if (ret_val) |
1da177e4 LT |
7161 | return ret_val; |
7162 | ||
7163 | hw->ffe_config_state = e1000_ffe_config_enabled; | |
7164 | } | |
7165 | } | |
7166 | return E1000_SUCCESS; | |
7167 | } | |
7168 | ||
7169 | /***************************************************************************** | |
7170 | * Set PHY to class A mode | |
7171 | * Assumes the following operations will follow to enable the new class mode. | |
7172 | * 1. Do a PHY soft reset | |
7173 | * 2. Restart auto-negotiation or force link. | |
7174 | * | |
7175 | * hw - Struct containing variables accessed by shared code | |
7176 | ****************************************************************************/ | |
7177 | static int32_t | |
7178 | e1000_set_phy_mode(struct e1000_hw *hw) | |
7179 | { | |
7180 | int32_t ret_val; | |
7181 | uint16_t eeprom_data; | |
7182 | ||
7183 | DEBUGFUNC("e1000_set_phy_mode"); | |
7184 | ||
8fc897b0 AK |
7185 | if ((hw->mac_type == e1000_82545_rev_3) && |
7186 | (hw->media_type == e1000_media_type_copper)) { | |
1da177e4 | 7187 | ret_val = e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, &eeprom_data); |
8fc897b0 | 7188 | if (ret_val) { |
1da177e4 LT |
7189 | return ret_val; |
7190 | } | |
7191 | ||
8fc897b0 AK |
7192 | if ((eeprom_data != EEPROM_RESERVED_WORD) && |
7193 | (eeprom_data & EEPROM_PHY_CLASS_A)) { | |
1da177e4 | 7194 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x000B); |
8fc897b0 | 7195 | if (ret_val) |
1da177e4 LT |
7196 | return ret_val; |
7197 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x8104); | |
8fc897b0 | 7198 | if (ret_val) |
1da177e4 LT |
7199 | return ret_val; |
7200 | ||
7201 | hw->phy_reset_disable = FALSE; | |
7202 | } | |
7203 | } | |
7204 | ||
7205 | return E1000_SUCCESS; | |
7206 | } | |
7207 | ||
7208 | /***************************************************************************** | |
7209 | * | |
7210 | * This function sets the lplu state according to the active flag. When | |
7211 | * activating lplu this function also disables smart speed and vise versa. | |
7212 | * lplu will not be activated unless the device autonegotiation advertisment | |
7213 | * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. | |
7214 | * hw: Struct containing variables accessed by shared code | |
7215 | * active - true to enable lplu false to disable lplu. | |
7216 | * | |
7217 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
7218 | * E1000_SUCCESS at any other case. | |
7219 | * | |
7220 | ****************************************************************************/ | |
7221 | ||
3ad2cc67 | 7222 | static int32_t |
1da177e4 LT |
7223 | e1000_set_d3_lplu_state(struct e1000_hw *hw, |
7224 | boolean_t active) | |
7225 | { | |
cd94dd0b | 7226 | uint32_t phy_ctrl = 0; |
1da177e4 LT |
7227 | int32_t ret_val; |
7228 | uint16_t phy_data; | |
7229 | DEBUGFUNC("e1000_set_d3_lplu_state"); | |
7230 | ||
cd94dd0b AK |
7231 | if (hw->phy_type != e1000_phy_igp && hw->phy_type != e1000_phy_igp_2 |
7232 | && hw->phy_type != e1000_phy_igp_3) | |
1da177e4 LT |
7233 | return E1000_SUCCESS; |
7234 | ||
7235 | /* During driver activity LPLU should not be used or it will attain link | |
7236 | * from the lowest speeds starting from 10Mbps. The capability is used for | |
7237 | * Dx transitions and states */ | |
cd94dd0b | 7238 | if (hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) { |
2d7edb92 | 7239 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); |
cd94dd0b | 7240 | if (ret_val) |
2d7edb92 | 7241 | return ret_val; |
cd94dd0b AK |
7242 | } else if (hw->mac_type == e1000_ich8lan) { |
7243 | /* MAC writes into PHY register based on the state transition | |
7244 | * and start auto-negotiation. SW driver can overwrite the settings | |
7245 | * in CSR PHY power control E1000_PHY_CTRL register. */ | |
7246 | phy_ctrl = E1000_READ_REG(hw, PHY_CTRL); | |
2d7edb92 MC |
7247 | } else { |
7248 | ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); | |
8fc897b0 | 7249 | if (ret_val) |
1da177e4 | 7250 | return ret_val; |
2d7edb92 MC |
7251 | } |
7252 | ||
8fc897b0 AK |
7253 | if (!active) { |
7254 | if (hw->mac_type == e1000_82541_rev_2 || | |
7255 | hw->mac_type == e1000_82547_rev_2) { | |
2d7edb92 MC |
7256 | phy_data &= ~IGP01E1000_GMII_FLEX_SPD; |
7257 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); | |
8fc897b0 | 7258 | if (ret_val) |
2d7edb92 MC |
7259 | return ret_val; |
7260 | } else { | |
cd94dd0b AK |
7261 | if (hw->mac_type == e1000_ich8lan) { |
7262 | phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; | |
7263 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7264 | } else { | |
2d7edb92 MC |
7265 | phy_data &= ~IGP02E1000_PM_D3_LPLU; |
7266 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, | |
7267 | phy_data); | |
7268 | if (ret_val) | |
7269 | return ret_val; | |
cd94dd0b | 7270 | } |
2d7edb92 | 7271 | } |
1da177e4 LT |
7272 | |
7273 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during | |
7274 | * Dx states where the power conservation is most important. During | |
7275 | * driver activity we should enable SmartSpeed, so performance is | |
7276 | * maintained. */ | |
7277 | if (hw->smart_speed == e1000_smart_speed_on) { | |
7278 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7279 | &phy_data); | |
8fc897b0 | 7280 | if (ret_val) |
1da177e4 LT |
7281 | return ret_val; |
7282 | ||
7283 | phy_data |= IGP01E1000_PSCFR_SMART_SPEED; | |
7284 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7285 | phy_data); | |
8fc897b0 | 7286 | if (ret_val) |
1da177e4 LT |
7287 | return ret_val; |
7288 | } else if (hw->smart_speed == e1000_smart_speed_off) { | |
7289 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7290 | &phy_data); | |
35574764 | 7291 | if (ret_val) |
1da177e4 LT |
7292 | return ret_val; |
7293 | ||
7294 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7295 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7296 | phy_data); | |
8fc897b0 | 7297 | if (ret_val) |
1da177e4 LT |
7298 | return ret_val; |
7299 | } | |
7300 | ||
8fc897b0 AK |
7301 | } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) || |
7302 | (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL ) || | |
7303 | (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_100_ALL)) { | |
1da177e4 | 7304 | |
8fc897b0 | 7305 | if (hw->mac_type == e1000_82541_rev_2 || |
cd94dd0b | 7306 | hw->mac_type == e1000_82547_rev_2) { |
2d7edb92 MC |
7307 | phy_data |= IGP01E1000_GMII_FLEX_SPD; |
7308 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); | |
8fc897b0 | 7309 | if (ret_val) |
2d7edb92 MC |
7310 | return ret_val; |
7311 | } else { | |
cd94dd0b AK |
7312 | if (hw->mac_type == e1000_ich8lan) { |
7313 | phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; | |
7314 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7315 | } else { | |
2d7edb92 MC |
7316 | phy_data |= IGP02E1000_PM_D3_LPLU; |
7317 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, | |
7318 | phy_data); | |
7319 | if (ret_val) | |
7320 | return ret_val; | |
cd94dd0b | 7321 | } |
2d7edb92 MC |
7322 | } |
7323 | ||
7324 | /* When LPLU is enabled we should disable SmartSpeed */ | |
7325 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); | |
8fc897b0 | 7326 | if (ret_val) |
2d7edb92 MC |
7327 | return ret_val; |
7328 | ||
7329 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7330 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); | |
8fc897b0 | 7331 | if (ret_val) |
2d7edb92 MC |
7332 | return ret_val; |
7333 | ||
7334 | } | |
7335 | return E1000_SUCCESS; | |
7336 | } | |
7337 | ||
7338 | /***************************************************************************** | |
7339 | * | |
7340 | * This function sets the lplu d0 state according to the active flag. When | |
7341 | * activating lplu this function also disables smart speed and vise versa. | |
7342 | * lplu will not be activated unless the device autonegotiation advertisment | |
7343 | * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. | |
7344 | * hw: Struct containing variables accessed by shared code | |
7345 | * active - true to enable lplu false to disable lplu. | |
7346 | * | |
7347 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
7348 | * E1000_SUCCESS at any other case. | |
7349 | * | |
7350 | ****************************************************************************/ | |
7351 | ||
3ad2cc67 | 7352 | static int32_t |
2d7edb92 MC |
7353 | e1000_set_d0_lplu_state(struct e1000_hw *hw, |
7354 | boolean_t active) | |
7355 | { | |
cd94dd0b | 7356 | uint32_t phy_ctrl = 0; |
2d7edb92 MC |
7357 | int32_t ret_val; |
7358 | uint16_t phy_data; | |
7359 | DEBUGFUNC("e1000_set_d0_lplu_state"); | |
7360 | ||
8fc897b0 | 7361 | if (hw->mac_type <= e1000_82547_rev_2) |
2d7edb92 MC |
7362 | return E1000_SUCCESS; |
7363 | ||
cd94dd0b AK |
7364 | if (hw->mac_type == e1000_ich8lan) { |
7365 | phy_ctrl = E1000_READ_REG(hw, PHY_CTRL); | |
7366 | } else { | |
2d7edb92 | 7367 | ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); |
8fc897b0 | 7368 | if (ret_val) |
1da177e4 | 7369 | return ret_val; |
cd94dd0b | 7370 | } |
1da177e4 | 7371 | |
2d7edb92 | 7372 | if (!active) { |
cd94dd0b AK |
7373 | if (hw->mac_type == e1000_ich8lan) { |
7374 | phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; | |
7375 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7376 | } else { | |
2d7edb92 MC |
7377 | phy_data &= ~IGP02E1000_PM_D0_LPLU; |
7378 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); | |
7379 | if (ret_val) | |
7380 | return ret_val; | |
cd94dd0b | 7381 | } |
2d7edb92 MC |
7382 | |
7383 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during | |
7384 | * Dx states where the power conservation is most important. During | |
7385 | * driver activity we should enable SmartSpeed, so performance is | |
7386 | * maintained. */ | |
7387 | if (hw->smart_speed == e1000_smart_speed_on) { | |
7388 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7389 | &phy_data); | |
8fc897b0 | 7390 | if (ret_val) |
2d7edb92 MC |
7391 | return ret_val; |
7392 | ||
7393 | phy_data |= IGP01E1000_PSCFR_SMART_SPEED; | |
7394 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7395 | phy_data); | |
8fc897b0 | 7396 | if (ret_val) |
2d7edb92 MC |
7397 | return ret_val; |
7398 | } else if (hw->smart_speed == e1000_smart_speed_off) { | |
7399 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7400 | &phy_data); | |
35574764 | 7401 | if (ret_val) |
2d7edb92 MC |
7402 | return ret_val; |
7403 | ||
7404 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7405 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7406 | phy_data); | |
8fc897b0 | 7407 | if (ret_val) |
2d7edb92 MC |
7408 | return ret_val; |
7409 | } | |
7410 | ||
7411 | ||
7412 | } else { | |
76c224bc | 7413 | |
cd94dd0b AK |
7414 | if (hw->mac_type == e1000_ich8lan) { |
7415 | phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; | |
7416 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7417 | } else { | |
76c224bc | 7418 | phy_data |= IGP02E1000_PM_D0_LPLU; |
2d7edb92 MC |
7419 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); |
7420 | if (ret_val) | |
7421 | return ret_val; | |
cd94dd0b | 7422 | } |
2d7edb92 | 7423 | |
1da177e4 LT |
7424 | /* When LPLU is enabled we should disable SmartSpeed */ |
7425 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); | |
8fc897b0 | 7426 | if (ret_val) |
1da177e4 LT |
7427 | return ret_val; |
7428 | ||
7429 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7430 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); | |
8fc897b0 | 7431 | if (ret_val) |
1da177e4 LT |
7432 | return ret_val; |
7433 | ||
7434 | } | |
7435 | return E1000_SUCCESS; | |
7436 | } | |
7437 | ||
7438 | /****************************************************************************** | |
7439 | * Change VCO speed register to improve Bit Error Rate performance of SERDES. | |
7440 | * | |
7441 | * hw - Struct containing variables accessed by shared code | |
7442 | *****************************************************************************/ | |
7443 | static int32_t | |
7444 | e1000_set_vco_speed(struct e1000_hw *hw) | |
7445 | { | |
7446 | int32_t ret_val; | |
7447 | uint16_t default_page = 0; | |
7448 | uint16_t phy_data; | |
7449 | ||
7450 | DEBUGFUNC("e1000_set_vco_speed"); | |
7451 | ||
8fc897b0 | 7452 | switch (hw->mac_type) { |
1da177e4 LT |
7453 | case e1000_82545_rev_3: |
7454 | case e1000_82546_rev_3: | |
7455 | break; | |
7456 | default: | |
7457 | return E1000_SUCCESS; | |
7458 | } | |
7459 | ||
7460 | /* Set PHY register 30, page 5, bit 8 to 0 */ | |
7461 | ||
7462 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); | |
8fc897b0 | 7463 | if (ret_val) |
1da177e4 LT |
7464 | return ret_val; |
7465 | ||
7466 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); | |
8fc897b0 | 7467 | if (ret_val) |
1da177e4 LT |
7468 | return ret_val; |
7469 | ||
7470 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); | |
8fc897b0 | 7471 | if (ret_val) |
1da177e4 LT |
7472 | return ret_val; |
7473 | ||
7474 | phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; | |
7475 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); | |
8fc897b0 | 7476 | if (ret_val) |
1da177e4 LT |
7477 | return ret_val; |
7478 | ||
7479 | /* Set PHY register 30, page 4, bit 11 to 1 */ | |
7480 | ||
7481 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); | |
8fc897b0 | 7482 | if (ret_val) |
1da177e4 LT |
7483 | return ret_val; |
7484 | ||
7485 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); | |
8fc897b0 | 7486 | if (ret_val) |
1da177e4 LT |
7487 | return ret_val; |
7488 | ||
7489 | phy_data |= M88E1000_PHY_VCO_REG_BIT11; | |
7490 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); | |
8fc897b0 | 7491 | if (ret_val) |
1da177e4 LT |
7492 | return ret_val; |
7493 | ||
7494 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); | |
8fc897b0 | 7495 | if (ret_val) |
1da177e4 LT |
7496 | return ret_val; |
7497 | ||
7498 | return E1000_SUCCESS; | |
7499 | } | |
7500 | ||
1da177e4 | 7501 | |
2d7edb92 MC |
7502 | /***************************************************************************** |
7503 | * This function reads the cookie from ARC ram. | |
7504 | * | |
7505 | * returns: - E1000_SUCCESS . | |
7506 | ****************************************************************************/ | |
35574764 | 7507 | static int32_t |
2d7edb92 MC |
7508 | e1000_host_if_read_cookie(struct e1000_hw * hw, uint8_t *buffer) |
7509 | { | |
7510 | uint8_t i; | |
76c224bc | 7511 | uint32_t offset = E1000_MNG_DHCP_COOKIE_OFFSET; |
2d7edb92 | 7512 | uint8_t length = E1000_MNG_DHCP_COOKIE_LENGTH; |
1da177e4 | 7513 | |
2d7edb92 MC |
7514 | length = (length >> 2); |
7515 | offset = (offset >> 2); | |
1da177e4 | 7516 | |
2d7edb92 MC |
7517 | for (i = 0; i < length; i++) { |
7518 | *((uint32_t *) buffer + i) = | |
7519 | E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset + i); | |
7520 | } | |
7521 | return E1000_SUCCESS; | |
7522 | } | |
7523 | ||
7524 | ||
7525 | /***************************************************************************** | |
7526 | * This function checks whether the HOST IF is enabled for command operaton | |
7527 | * and also checks whether the previous command is completed. | |
7528 | * It busy waits in case of previous command is not completed. | |
7529 | * | |
76c224bc | 7530 | * returns: - E1000_ERR_HOST_INTERFACE_COMMAND in case if is not ready or |
2d7edb92 MC |
7531 | * timeout |
7532 | * - E1000_SUCCESS for success. | |
7533 | ****************************************************************************/ | |
3ad2cc67 | 7534 | static int32_t |
2d7edb92 MC |
7535 | e1000_mng_enable_host_if(struct e1000_hw * hw) |
7536 | { | |
7537 | uint32_t hicr; | |
7538 | uint8_t i; | |
7539 | ||
7540 | /* Check that the host interface is enabled. */ | |
7541 | hicr = E1000_READ_REG(hw, HICR); | |
7542 | if ((hicr & E1000_HICR_EN) == 0) { | |
7543 | DEBUGOUT("E1000_HOST_EN bit disabled.\n"); | |
7544 | return -E1000_ERR_HOST_INTERFACE_COMMAND; | |
7545 | } | |
7546 | /* check the previous command is completed */ | |
7547 | for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) { | |
7548 | hicr = E1000_READ_REG(hw, HICR); | |
7549 | if (!(hicr & E1000_HICR_C)) | |
7550 | break; | |
f8ec4733 | 7551 | mdelay(1); |
2d7edb92 MC |
7552 | } |
7553 | ||
76c224bc | 7554 | if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) { |
2d7edb92 MC |
7555 | DEBUGOUT("Previous command timeout failed .\n"); |
7556 | return -E1000_ERR_HOST_INTERFACE_COMMAND; | |
7557 | } | |
7558 | return E1000_SUCCESS; | |
7559 | } | |
7560 | ||
7561 | /***************************************************************************** | |
7562 | * This function writes the buffer content at the offset given on the host if. | |
7563 | * It also does alignment considerations to do the writes in most efficient way. | |
7564 | * Also fills up the sum of the buffer in *buffer parameter. | |
7565 | * | |
7566 | * returns - E1000_SUCCESS for success. | |
7567 | ****************************************************************************/ | |
3ad2cc67 | 7568 | static int32_t |
2d7edb92 MC |
7569 | e1000_mng_host_if_write(struct e1000_hw * hw, uint8_t *buffer, |
7570 | uint16_t length, uint16_t offset, uint8_t *sum) | |
7571 | { | |
7572 | uint8_t *tmp; | |
7573 | uint8_t *bufptr = buffer; | |
8fc897b0 | 7574 | uint32_t data = 0; |
2d7edb92 MC |
7575 | uint16_t remaining, i, j, prev_bytes; |
7576 | ||
7577 | /* sum = only sum of the data and it is not checksum */ | |
7578 | ||
7579 | if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH) { | |
7580 | return -E1000_ERR_PARAM; | |
7581 | } | |
7582 | ||
7583 | tmp = (uint8_t *)&data; | |
7584 | prev_bytes = offset & 0x3; | |
7585 | offset &= 0xFFFC; | |
7586 | offset >>= 2; | |
7587 | ||
7588 | if (prev_bytes) { | |
7589 | data = E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset); | |
7590 | for (j = prev_bytes; j < sizeof(uint32_t); j++) { | |
7591 | *(tmp + j) = *bufptr++; | |
7592 | *sum += *(tmp + j); | |
7593 | } | |
7594 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset, data); | |
7595 | length -= j - prev_bytes; | |
7596 | offset++; | |
7597 | } | |
7598 | ||
7599 | remaining = length & 0x3; | |
7600 | length -= remaining; | |
7601 | ||
7602 | /* Calculate length in DWORDs */ | |
7603 | length >>= 2; | |
7604 | ||
7605 | /* The device driver writes the relevant command block into the | |
7606 | * ram area. */ | |
7607 | for (i = 0; i < length; i++) { | |
7608 | for (j = 0; j < sizeof(uint32_t); j++) { | |
7609 | *(tmp + j) = *bufptr++; | |
7610 | *sum += *(tmp + j); | |
7611 | } | |
7612 | ||
7613 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); | |
7614 | } | |
7615 | if (remaining) { | |
7616 | for (j = 0; j < sizeof(uint32_t); j++) { | |
7617 | if (j < remaining) | |
7618 | *(tmp + j) = *bufptr++; | |
7619 | else | |
7620 | *(tmp + j) = 0; | |
7621 | ||
7622 | *sum += *(tmp + j); | |
7623 | } | |
7624 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); | |
7625 | } | |
7626 | ||
7627 | return E1000_SUCCESS; | |
7628 | } | |
7629 | ||
7630 | ||
7631 | /***************************************************************************** | |
7632 | * This function writes the command header after does the checksum calculation. | |
7633 | * | |
7634 | * returns - E1000_SUCCESS for success. | |
7635 | ****************************************************************************/ | |
3ad2cc67 | 7636 | static int32_t |
2d7edb92 MC |
7637 | e1000_mng_write_cmd_header(struct e1000_hw * hw, |
7638 | struct e1000_host_mng_command_header * hdr) | |
7639 | { | |
7640 | uint16_t i; | |
7641 | uint8_t sum; | |
7642 | uint8_t *buffer; | |
7643 | ||
7644 | /* Write the whole command header structure which includes sum of | |
7645 | * the buffer */ | |
7646 | ||
7647 | uint16_t length = sizeof(struct e1000_host_mng_command_header); | |
7648 | ||
7649 | sum = hdr->checksum; | |
7650 | hdr->checksum = 0; | |
7651 | ||
7652 | buffer = (uint8_t *) hdr; | |
7653 | i = length; | |
8fc897b0 | 7654 | while (i--) |
2d7edb92 MC |
7655 | sum += buffer[i]; |
7656 | ||
7657 | hdr->checksum = 0 - sum; | |
7658 | ||
7659 | length >>= 2; | |
7660 | /* The device driver writes the relevant command block into the ram area. */ | |
4ca213a6 | 7661 | for (i = 0; i < length; i++) { |
2d7edb92 | 7662 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, i, *((uint32_t *) hdr + i)); |
4ca213a6 AK |
7663 | E1000_WRITE_FLUSH(hw); |
7664 | } | |
2d7edb92 MC |
7665 | |
7666 | return E1000_SUCCESS; | |
7667 | } | |
7668 | ||
7669 | ||
7670 | /***************************************************************************** | |
7671 | * This function indicates to ARC that a new command is pending which completes | |
7672 | * one write operation by the driver. | |
7673 | * | |
7674 | * returns - E1000_SUCCESS for success. | |
7675 | ****************************************************************************/ | |
3ad2cc67 | 7676 | static int32_t |
8fc897b0 | 7677 | e1000_mng_write_commit(struct e1000_hw * hw) |
2d7edb92 MC |
7678 | { |
7679 | uint32_t hicr; | |
7680 | ||
7681 | hicr = E1000_READ_REG(hw, HICR); | |
7682 | /* Setting this bit tells the ARC that a new command is pending. */ | |
7683 | E1000_WRITE_REG(hw, HICR, hicr | E1000_HICR_C); | |
7684 | ||
7685 | return E1000_SUCCESS; | |
7686 | } | |
7687 | ||
7688 | ||
7689 | /***************************************************************************** | |
7690 | * This function checks the mode of the firmware. | |
7691 | * | |
7692 | * returns - TRUE when the mode is IAMT or FALSE. | |
7693 | ****************************************************************************/ | |
7694 | boolean_t | |
cd94dd0b | 7695 | e1000_check_mng_mode(struct e1000_hw *hw) |
2d7edb92 MC |
7696 | { |
7697 | uint32_t fwsm; | |
7698 | ||
7699 | fwsm = E1000_READ_REG(hw, FWSM); | |
7700 | ||
cd94dd0b AK |
7701 | if (hw->mac_type == e1000_ich8lan) { |
7702 | if ((fwsm & E1000_FWSM_MODE_MASK) == | |
7703 | (E1000_MNG_ICH_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) | |
7704 | return TRUE; | |
7705 | } else if ((fwsm & E1000_FWSM_MODE_MASK) == | |
7706 | (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) | |
2d7edb92 MC |
7707 | return TRUE; |
7708 | ||
7709 | return FALSE; | |
7710 | } | |
7711 | ||
7712 | ||
7713 | /***************************************************************************** | |
7714 | * This function writes the dhcp info . | |
7715 | ****************************************************************************/ | |
7716 | int32_t | |
7717 | e1000_mng_write_dhcp_info(struct e1000_hw * hw, uint8_t *buffer, | |
35574764 | 7718 | uint16_t length) |
2d7edb92 MC |
7719 | { |
7720 | int32_t ret_val; | |
7721 | struct e1000_host_mng_command_header hdr; | |
7722 | ||
7723 | hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD; | |
7724 | hdr.command_length = length; | |
7725 | hdr.reserved1 = 0; | |
7726 | hdr.reserved2 = 0; | |
7727 | hdr.checksum = 0; | |
7728 | ||
7729 | ret_val = e1000_mng_enable_host_if(hw); | |
7730 | if (ret_val == E1000_SUCCESS) { | |
7731 | ret_val = e1000_mng_host_if_write(hw, buffer, length, sizeof(hdr), | |
7732 | &(hdr.checksum)); | |
7733 | if (ret_val == E1000_SUCCESS) { | |
7734 | ret_val = e1000_mng_write_cmd_header(hw, &hdr); | |
7735 | if (ret_val == E1000_SUCCESS) | |
7736 | ret_val = e1000_mng_write_commit(hw); | |
7737 | } | |
7738 | } | |
7739 | return ret_val; | |
7740 | } | |
7741 | ||
7742 | ||
7743 | /***************************************************************************** | |
7744 | * This function calculates the checksum. | |
7745 | * | |
7746 | * returns - checksum of buffer contents. | |
7747 | ****************************************************************************/ | |
35574764 | 7748 | static uint8_t |
2d7edb92 MC |
7749 | e1000_calculate_mng_checksum(char *buffer, uint32_t length) |
7750 | { | |
7751 | uint8_t sum = 0; | |
7752 | uint32_t i; | |
7753 | ||
7754 | if (!buffer) | |
7755 | return 0; | |
7756 | ||
7757 | for (i=0; i < length; i++) | |
7758 | sum += buffer[i]; | |
7759 | ||
7760 | return (uint8_t) (0 - sum); | |
7761 | } | |
7762 | ||
7763 | /***************************************************************************** | |
7764 | * This function checks whether tx pkt filtering needs to be enabled or not. | |
7765 | * | |
7766 | * returns - TRUE for packet filtering or FALSE. | |
7767 | ****************************************************************************/ | |
7768 | boolean_t | |
7769 | e1000_enable_tx_pkt_filtering(struct e1000_hw *hw) | |
7770 | { | |
7771 | /* called in init as well as watchdog timer functions */ | |
7772 | ||
7773 | int32_t ret_val, checksum; | |
7774 | boolean_t tx_filter = FALSE; | |
7775 | struct e1000_host_mng_dhcp_cookie *hdr = &(hw->mng_cookie); | |
7776 | uint8_t *buffer = (uint8_t *) &(hw->mng_cookie); | |
7777 | ||
7778 | if (e1000_check_mng_mode(hw)) { | |
7779 | ret_val = e1000_mng_enable_host_if(hw); | |
7780 | if (ret_val == E1000_SUCCESS) { | |
7781 | ret_val = e1000_host_if_read_cookie(hw, buffer); | |
7782 | if (ret_val == E1000_SUCCESS) { | |
7783 | checksum = hdr->checksum; | |
7784 | hdr->checksum = 0; | |
7785 | if ((hdr->signature == E1000_IAMT_SIGNATURE) && | |
7786 | checksum == e1000_calculate_mng_checksum((char *)buffer, | |
7787 | E1000_MNG_DHCP_COOKIE_LENGTH)) { | |
7788 | if (hdr->status & | |
7789 | E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT) | |
7790 | tx_filter = TRUE; | |
7791 | } else | |
7792 | tx_filter = TRUE; | |
7793 | } else | |
7794 | tx_filter = TRUE; | |
7795 | } | |
7796 | } | |
7797 | ||
7798 | hw->tx_pkt_filtering = tx_filter; | |
7799 | return tx_filter; | |
7800 | } | |
7801 | ||
7802 | /****************************************************************************** | |
7803 | * Verifies the hardware needs to allow ARPs to be processed by the host | |
7804 | * | |
7805 | * hw - Struct containing variables accessed by shared code | |
7806 | * | |
7807 | * returns: - TRUE/FALSE | |
7808 | * | |
7809 | *****************************************************************************/ | |
7810 | uint32_t | |
7811 | e1000_enable_mng_pass_thru(struct e1000_hw *hw) | |
7812 | { | |
7813 | uint32_t manc; | |
7814 | uint32_t fwsm, factps; | |
7815 | ||
7816 | if (hw->asf_firmware_present) { | |
7817 | manc = E1000_READ_REG(hw, MANC); | |
7818 | ||
7819 | if (!(manc & E1000_MANC_RCV_TCO_EN) || | |
7820 | !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) | |
7821 | return FALSE; | |
7822 | if (e1000_arc_subsystem_valid(hw) == TRUE) { | |
7823 | fwsm = E1000_READ_REG(hw, FWSM); | |
7824 | factps = E1000_READ_REG(hw, FACTPS); | |
7825 | ||
7826 | if (((fwsm & E1000_FWSM_MODE_MASK) == | |
7827 | (e1000_mng_mode_pt << E1000_FWSM_MODE_SHIFT)) && | |
7828 | (factps & E1000_FACTPS_MNGCG)) | |
7829 | return TRUE; | |
7830 | } else | |
7831 | if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) | |
7832 | return TRUE; | |
7833 | } | |
7834 | return FALSE; | |
7835 | } | |
7836 | ||
7837 | static int32_t | |
7838 | e1000_polarity_reversal_workaround(struct e1000_hw *hw) | |
7839 | { | |
7840 | int32_t ret_val; | |
7841 | uint16_t mii_status_reg; | |
7842 | uint16_t i; | |
7843 | ||
7844 | /* Polarity reversal workaround for forced 10F/10H links. */ | |
7845 | ||
7846 | /* Disable the transmitter on the PHY */ | |
7847 | ||
7848 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); | |
8fc897b0 | 7849 | if (ret_val) |
1da177e4 LT |
7850 | return ret_val; |
7851 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); | |
8fc897b0 | 7852 | if (ret_val) |
1da177e4 LT |
7853 | return ret_val; |
7854 | ||
7855 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); | |
8fc897b0 | 7856 | if (ret_val) |
1da177e4 LT |
7857 | return ret_val; |
7858 | ||
7859 | /* This loop will early-out if the NO link condition has been met. */ | |
8fc897b0 | 7860 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
7861 | /* Read the MII Status Register and wait for Link Status bit |
7862 | * to be clear. | |
7863 | */ | |
7864 | ||
7865 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7866 | if (ret_val) |
1da177e4 LT |
7867 | return ret_val; |
7868 | ||
7869 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7870 | if (ret_val) |
1da177e4 LT |
7871 | return ret_val; |
7872 | ||
8fc897b0 | 7873 | if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) break; |
f8ec4733 | 7874 | mdelay(100); |
1da177e4 LT |
7875 | } |
7876 | ||
7877 | /* Recommended delay time after link has been lost */ | |
f8ec4733 | 7878 | mdelay(1000); |
1da177e4 LT |
7879 | |
7880 | /* Now we will re-enable th transmitter on the PHY */ | |
7881 | ||
7882 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); | |
8fc897b0 | 7883 | if (ret_val) |
1da177e4 | 7884 | return ret_val; |
f8ec4733 | 7885 | mdelay(50); |
1da177e4 | 7886 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); |
8fc897b0 | 7887 | if (ret_val) |
1da177e4 | 7888 | return ret_val; |
f8ec4733 | 7889 | mdelay(50); |
1da177e4 | 7890 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); |
8fc897b0 | 7891 | if (ret_val) |
1da177e4 | 7892 | return ret_val; |
f8ec4733 | 7893 | mdelay(50); |
1da177e4 | 7894 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); |
8fc897b0 | 7895 | if (ret_val) |
1da177e4 LT |
7896 | return ret_val; |
7897 | ||
7898 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); | |
8fc897b0 | 7899 | if (ret_val) |
1da177e4 LT |
7900 | return ret_val; |
7901 | ||
7902 | /* This loop will early-out if the link condition has been met. */ | |
8fc897b0 | 7903 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
7904 | /* Read the MII Status Register and wait for Link Status bit |
7905 | * to be set. | |
7906 | */ | |
7907 | ||
7908 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7909 | if (ret_val) |
1da177e4 LT |
7910 | return ret_val; |
7911 | ||
7912 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7913 | if (ret_val) |
1da177e4 LT |
7914 | return ret_val; |
7915 | ||
8fc897b0 | 7916 | if (mii_status_reg & MII_SR_LINK_STATUS) break; |
f8ec4733 | 7917 | mdelay(100); |
1da177e4 LT |
7918 | } |
7919 | return E1000_SUCCESS; | |
7920 | } | |
7921 | ||
2d7edb92 MC |
7922 | /*************************************************************************** |
7923 | * | |
7924 | * Disables PCI-Express master access. | |
7925 | * | |
7926 | * hw: Struct containing variables accessed by shared code | |
7927 | * | |
7928 | * returns: - none. | |
7929 | * | |
7930 | ***************************************************************************/ | |
3ad2cc67 | 7931 | static void |
2d7edb92 MC |
7932 | e1000_set_pci_express_master_disable(struct e1000_hw *hw) |
7933 | { | |
7934 | uint32_t ctrl; | |
7935 | ||
7936 | DEBUGFUNC("e1000_set_pci_express_master_disable"); | |
7937 | ||
7938 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7939 | return; | |
7940 | ||
7941 | ctrl = E1000_READ_REG(hw, CTRL); | |
7942 | ctrl |= E1000_CTRL_GIO_MASTER_DISABLE; | |
7943 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
7944 | } | |
7945 | ||
2d7edb92 MC |
7946 | /******************************************************************************* |
7947 | * | |
7948 | * Disables PCI-Express master access and verifies there are no pending requests | |
7949 | * | |
7950 | * hw: Struct containing variables accessed by shared code | |
7951 | * | |
7952 | * returns: - E1000_ERR_MASTER_REQUESTS_PENDING if master disable bit hasn't | |
7953 | * caused the master requests to be disabled. | |
7954 | * E1000_SUCCESS master requests disabled. | |
7955 | * | |
7956 | ******************************************************************************/ | |
7957 | int32_t | |
7958 | e1000_disable_pciex_master(struct e1000_hw *hw) | |
7959 | { | |
7960 | int32_t timeout = MASTER_DISABLE_TIMEOUT; /* 80ms */ | |
7961 | ||
7962 | DEBUGFUNC("e1000_disable_pciex_master"); | |
7963 | ||
7964 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7965 | return E1000_SUCCESS; | |
7966 | ||
7967 | e1000_set_pci_express_master_disable(hw); | |
7968 | ||
8fc897b0 AK |
7969 | while (timeout) { |
7970 | if (!(E1000_READ_REG(hw, STATUS) & E1000_STATUS_GIO_MASTER_ENABLE)) | |
2d7edb92 MC |
7971 | break; |
7972 | else | |
7973 | udelay(100); | |
7974 | timeout--; | |
7975 | } | |
7976 | ||
8fc897b0 | 7977 | if (!timeout) { |
2d7edb92 MC |
7978 | DEBUGOUT("Master requests are pending.\n"); |
7979 | return -E1000_ERR_MASTER_REQUESTS_PENDING; | |
7980 | } | |
7981 | ||
7982 | return E1000_SUCCESS; | |
7983 | } | |
7984 | ||
7985 | /******************************************************************************* | |
7986 | * | |
7987 | * Check for EEPROM Auto Read bit done. | |
7988 | * | |
7989 | * hw: Struct containing variables accessed by shared code | |
7990 | * | |
7991 | * returns: - E1000_ERR_RESET if fail to reset MAC | |
7992 | * E1000_SUCCESS at any other case. | |
7993 | * | |
7994 | ******************************************************************************/ | |
3ad2cc67 | 7995 | static int32_t |
2d7edb92 MC |
7996 | e1000_get_auto_rd_done(struct e1000_hw *hw) |
7997 | { | |
7998 | int32_t timeout = AUTO_READ_DONE_TIMEOUT; | |
7999 | ||
8000 | DEBUGFUNC("e1000_get_auto_rd_done"); | |
8001 | ||
8002 | switch (hw->mac_type) { | |
8003 | default: | |
f8ec4733 | 8004 | msleep(5); |
2d7edb92 | 8005 | break; |
868d5309 MC |
8006 | case e1000_82571: |
8007 | case e1000_82572: | |
2d7edb92 | 8008 | case e1000_82573: |
6418ecc6 | 8009 | case e1000_80003es2lan: |
cd94dd0b AK |
8010 | case e1000_ich8lan: |
8011 | while (timeout) { | |
8012 | if (E1000_READ_REG(hw, EECD) & E1000_EECD_AUTO_RD) | |
8013 | break; | |
f8ec4733 | 8014 | else msleep(1); |
2d7edb92 MC |
8015 | timeout--; |
8016 | } | |
8017 | ||
8fc897b0 | 8018 | if (!timeout) { |
2d7edb92 MC |
8019 | DEBUGOUT("Auto read by HW from EEPROM has not completed.\n"); |
8020 | return -E1000_ERR_RESET; | |
8021 | } | |
8022 | break; | |
8023 | } | |
8024 | ||
fd803241 JK |
8025 | /* PHY configuration from NVM just starts after EECD_AUTO_RD sets to high. |
8026 | * Need to wait for PHY configuration completion before accessing NVM | |
8027 | * and PHY. */ | |
8028 | if (hw->mac_type == e1000_82573) | |
f8ec4733 | 8029 | msleep(25); |
fd803241 | 8030 | |
2d7edb92 MC |
8031 | return E1000_SUCCESS; |
8032 | } | |
8033 | ||
8034 | /*************************************************************************** | |
8035 | * Checks if the PHY configuration is done | |
8036 | * | |
8037 | * hw: Struct containing variables accessed by shared code | |
8038 | * | |
8039 | * returns: - E1000_ERR_RESET if fail to reset MAC | |
8040 | * E1000_SUCCESS at any other case. | |
8041 | * | |
8042 | ***************************************************************************/ | |
3ad2cc67 | 8043 | static int32_t |
2d7edb92 MC |
8044 | e1000_get_phy_cfg_done(struct e1000_hw *hw) |
8045 | { | |
868d5309 MC |
8046 | int32_t timeout = PHY_CFG_TIMEOUT; |
8047 | uint32_t cfg_mask = E1000_EEPROM_CFG_DONE; | |
8048 | ||
2d7edb92 MC |
8049 | DEBUGFUNC("e1000_get_phy_cfg_done"); |
8050 | ||
868d5309 MC |
8051 | switch (hw->mac_type) { |
8052 | default: | |
f8ec4733 | 8053 | mdelay(10); |
868d5309 | 8054 | break; |
6418ecc6 JK |
8055 | case e1000_80003es2lan: |
8056 | /* Separate *_CFG_DONE_* bit for each port */ | |
8057 | if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) | |
8058 | cfg_mask = E1000_EEPROM_CFG_DONE_PORT_1; | |
8059 | /* Fall Through */ | |
868d5309 MC |
8060 | case e1000_82571: |
8061 | case e1000_82572: | |
8062 | while (timeout) { | |
8063 | if (E1000_READ_REG(hw, EEMNGCTL) & cfg_mask) | |
8064 | break; | |
8065 | else | |
f8ec4733 | 8066 | msleep(1); |
868d5309 MC |
8067 | timeout--; |
8068 | } | |
868d5309 MC |
8069 | if (!timeout) { |
8070 | DEBUGOUT("MNG configuration cycle has not completed.\n"); | |
8071 | return -E1000_ERR_RESET; | |
8072 | } | |
8073 | break; | |
8074 | } | |
2d7edb92 MC |
8075 | |
8076 | return E1000_SUCCESS; | |
8077 | } | |
8078 | ||
8079 | /*************************************************************************** | |
8080 | * | |
8081 | * Using the combination of SMBI and SWESMBI semaphore bits when resetting | |
8082 | * adapter or Eeprom access. | |
8083 | * | |
8084 | * hw: Struct containing variables accessed by shared code | |
8085 | * | |
8086 | * returns: - E1000_ERR_EEPROM if fail to access EEPROM. | |
8087 | * E1000_SUCCESS at any other case. | |
8088 | * | |
8089 | ***************************************************************************/ | |
3ad2cc67 | 8090 | static int32_t |
2d7edb92 MC |
8091 | e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw) |
8092 | { | |
8093 | int32_t timeout; | |
8094 | uint32_t swsm; | |
8095 | ||
8096 | DEBUGFUNC("e1000_get_hw_eeprom_semaphore"); | |
8097 | ||
8fc897b0 | 8098 | if (!hw->eeprom_semaphore_present) |
2d7edb92 MC |
8099 | return E1000_SUCCESS; |
8100 | ||
6418ecc6 JK |
8101 | if (hw->mac_type == e1000_80003es2lan) { |
8102 | /* Get the SW semaphore. */ | |
8103 | if (e1000_get_software_semaphore(hw) != E1000_SUCCESS) | |
8104 | return -E1000_ERR_EEPROM; | |
8105 | } | |
2d7edb92 MC |
8106 | |
8107 | /* Get the FW semaphore. */ | |
8108 | timeout = hw->eeprom.word_size + 1; | |
8fc897b0 | 8109 | while (timeout) { |
2d7edb92 MC |
8110 | swsm = E1000_READ_REG(hw, SWSM); |
8111 | swsm |= E1000_SWSM_SWESMBI; | |
8112 | E1000_WRITE_REG(hw, SWSM, swsm); | |
8113 | /* if we managed to set the bit we got the semaphore. */ | |
8114 | swsm = E1000_READ_REG(hw, SWSM); | |
8fc897b0 | 8115 | if (swsm & E1000_SWSM_SWESMBI) |
2d7edb92 MC |
8116 | break; |
8117 | ||
8118 | udelay(50); | |
8119 | timeout--; | |
8120 | } | |
8121 | ||
8fc897b0 | 8122 | if (!timeout) { |
2d7edb92 MC |
8123 | /* Release semaphores */ |
8124 | e1000_put_hw_eeprom_semaphore(hw); | |
8125 | DEBUGOUT("Driver can't access the Eeprom - SWESMBI bit is set.\n"); | |
8126 | return -E1000_ERR_EEPROM; | |
8127 | } | |
8128 | ||
8129 | return E1000_SUCCESS; | |
8130 | } | |
8131 | ||
8132 | /*************************************************************************** | |
8133 | * This function clears HW semaphore bits. | |
8134 | * | |
8135 | * hw: Struct containing variables accessed by shared code | |
8136 | * | |
8137 | * returns: - None. | |
8138 | * | |
8139 | ***************************************************************************/ | |
3ad2cc67 | 8140 | static void |
2d7edb92 MC |
8141 | e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw) |
8142 | { | |
8143 | uint32_t swsm; | |
8144 | ||
8145 | DEBUGFUNC("e1000_put_hw_eeprom_semaphore"); | |
8146 | ||
8fc897b0 | 8147 | if (!hw->eeprom_semaphore_present) |
2d7edb92 MC |
8148 | return; |
8149 | ||
8150 | swsm = E1000_READ_REG(hw, SWSM); | |
6418ecc6 JK |
8151 | if (hw->mac_type == e1000_80003es2lan) { |
8152 | /* Release both semaphores. */ | |
8153 | swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); | |
8154 | } else | |
868d5309 | 8155 | swsm &= ~(E1000_SWSM_SWESMBI); |
2d7edb92 MC |
8156 | E1000_WRITE_REG(hw, SWSM, swsm); |
8157 | } | |
8158 | ||
6418ecc6 JK |
8159 | /*************************************************************************** |
8160 | * | |
8161 | * Obtaining software semaphore bit (SMBI) before resetting PHY. | |
8162 | * | |
8163 | * hw: Struct containing variables accessed by shared code | |
8164 | * | |
8165 | * returns: - E1000_ERR_RESET if fail to obtain semaphore. | |
8166 | * E1000_SUCCESS at any other case. | |
8167 | * | |
8168 | ***************************************************************************/ | |
e4c780b1 | 8169 | static int32_t |
6418ecc6 JK |
8170 | e1000_get_software_semaphore(struct e1000_hw *hw) |
8171 | { | |
8172 | int32_t timeout = hw->eeprom.word_size + 1; | |
8173 | uint32_t swsm; | |
8174 | ||
8175 | DEBUGFUNC("e1000_get_software_semaphore"); | |
8176 | ||
35574764 | 8177 | if (hw->mac_type != e1000_80003es2lan) { |
6418ecc6 | 8178 | return E1000_SUCCESS; |
35574764 | 8179 | } |
6418ecc6 | 8180 | |
8fc897b0 | 8181 | while (timeout) { |
6418ecc6 JK |
8182 | swsm = E1000_READ_REG(hw, SWSM); |
8183 | /* If SMBI bit cleared, it is now set and we hold the semaphore */ | |
8fc897b0 | 8184 | if (!(swsm & E1000_SWSM_SMBI)) |
6418ecc6 | 8185 | break; |
f8ec4733 | 8186 | mdelay(1); |
6418ecc6 JK |
8187 | timeout--; |
8188 | } | |
8189 | ||
8fc897b0 | 8190 | if (!timeout) { |
6418ecc6 JK |
8191 | DEBUGOUT("Driver can't access device - SMBI bit is set.\n"); |
8192 | return -E1000_ERR_RESET; | |
8193 | } | |
8194 | ||
8195 | return E1000_SUCCESS; | |
8196 | } | |
8197 | ||
8198 | /*************************************************************************** | |
8199 | * | |
8200 | * Release semaphore bit (SMBI). | |
8201 | * | |
8202 | * hw: Struct containing variables accessed by shared code | |
8203 | * | |
8204 | ***************************************************************************/ | |
e4c780b1 | 8205 | static void |
6418ecc6 JK |
8206 | e1000_release_software_semaphore(struct e1000_hw *hw) |
8207 | { | |
8208 | uint32_t swsm; | |
8209 | ||
8210 | DEBUGFUNC("e1000_release_software_semaphore"); | |
8211 | ||
35574764 | 8212 | if (hw->mac_type != e1000_80003es2lan) { |
6418ecc6 | 8213 | return; |
35574764 | 8214 | } |
6418ecc6 JK |
8215 | |
8216 | swsm = E1000_READ_REG(hw, SWSM); | |
8217 | /* Release the SW semaphores.*/ | |
8218 | swsm &= ~E1000_SWSM_SMBI; | |
8219 | E1000_WRITE_REG(hw, SWSM, swsm); | |
8220 | } | |
8221 | ||
2d7edb92 MC |
8222 | /****************************************************************************** |
8223 | * Checks if PHY reset is blocked due to SOL/IDER session, for example. | |
8224 | * Returning E1000_BLK_PHY_RESET isn't necessarily an error. But it's up to | |
8225 | * the caller to figure out how to deal with it. | |
8226 | * | |
8227 | * hw - Struct containing variables accessed by shared code | |
8228 | * | |
8229 | * returns: - E1000_BLK_PHY_RESET | |
8230 | * E1000_SUCCESS | |
8231 | * | |
8232 | *****************************************************************************/ | |
8233 | int32_t | |
8234 | e1000_check_phy_reset_block(struct e1000_hw *hw) | |
8235 | { | |
8236 | uint32_t manc = 0; | |
cd94dd0b AK |
8237 | uint32_t fwsm = 0; |
8238 | ||
8239 | if (hw->mac_type == e1000_ich8lan) { | |
8240 | fwsm = E1000_READ_REG(hw, FWSM); | |
8241 | return (fwsm & E1000_FWSM_RSPCIPHY) ? E1000_SUCCESS | |
8242 | : E1000_BLK_PHY_RESET; | |
8243 | } | |
96838a40 JB |
8244 | |
8245 | if (hw->mac_type > e1000_82547_rev_2) | |
2d7edb92 MC |
8246 | manc = E1000_READ_REG(hw, MANC); |
8247 | return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? | |
35574764 | 8248 | E1000_BLK_PHY_RESET : E1000_SUCCESS; |
2d7edb92 MC |
8249 | } |
8250 | ||
3ad2cc67 | 8251 | static uint8_t |
2d7edb92 MC |
8252 | e1000_arc_subsystem_valid(struct e1000_hw *hw) |
8253 | { | |
8254 | uint32_t fwsm; | |
8255 | ||
8256 | /* On 8257x silicon, registers in the range of 0x8800 - 0x8FFC | |
8257 | * may not be provided a DMA clock when no manageability features are | |
8258 | * enabled. We do not want to perform any reads/writes to these registers | |
8259 | * if this is the case. We read FWSM to determine the manageability mode. | |
8260 | */ | |
8261 | switch (hw->mac_type) { | |
868d5309 MC |
8262 | case e1000_82571: |
8263 | case e1000_82572: | |
2d7edb92 | 8264 | case e1000_82573: |
6418ecc6 | 8265 | case e1000_80003es2lan: |
2d7edb92 | 8266 | fwsm = E1000_READ_REG(hw, FWSM); |
8fc897b0 | 8267 | if ((fwsm & E1000_FWSM_MODE_MASK) != 0) |
2d7edb92 MC |
8268 | return TRUE; |
8269 | break; | |
cd94dd0b AK |
8270 | case e1000_ich8lan: |
8271 | return TRUE; | |
2d7edb92 MC |
8272 | default: |
8273 | break; | |
8274 | } | |
8275 | return FALSE; | |
8276 | } | |
8277 | ||
8278 | ||
d37ea5d5 AK |
8279 | /****************************************************************************** |
8280 | * Configure PCI-Ex no-snoop | |
8281 | * | |
8282 | * hw - Struct containing variables accessed by shared code. | |
8283 | * no_snoop - Bitmap of no-snoop events. | |
8284 | * | |
8285 | * returns: E1000_SUCCESS | |
8286 | * | |
8287 | *****************************************************************************/ | |
e4c780b1 | 8288 | static int32_t |
d37ea5d5 AK |
8289 | e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop) |
8290 | { | |
8291 | uint32_t gcr_reg = 0; | |
8292 | ||
8293 | DEBUGFUNC("e1000_set_pci_ex_no_snoop"); | |
8294 | ||
8295 | if (hw->bus_type == e1000_bus_type_unknown) | |
8296 | e1000_get_bus_info(hw); | |
8297 | ||
8298 | if (hw->bus_type != e1000_bus_type_pci_express) | |
8299 | return E1000_SUCCESS; | |
8300 | ||
8301 | if (no_snoop) { | |
8302 | gcr_reg = E1000_READ_REG(hw, GCR); | |
8303 | gcr_reg &= ~(PCI_EX_NO_SNOOP_ALL); | |
8304 | gcr_reg |= no_snoop; | |
8305 | E1000_WRITE_REG(hw, GCR, gcr_reg); | |
8306 | } | |
8307 | if (hw->mac_type == e1000_ich8lan) { | |
8308 | uint32_t ctrl_ext; | |
8309 | ||
8310 | E1000_WRITE_REG(hw, GCR, PCI_EX_82566_SNOOP_ALL); | |
8311 | ||
8312 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
8313 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
8314 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
8315 | } | |
8316 | ||
8317 | return E1000_SUCCESS; | |
8318 | } | |
8319 | ||
8320 | /*************************************************************************** | |
8321 | * | |
8322 | * Get software semaphore FLAG bit (SWFLAG). | |
8323 | * SWFLAG is used to synchronize the access to all shared resource between | |
8324 | * SW, FW and HW. | |
8325 | * | |
8326 | * hw: Struct containing variables accessed by shared code | |
8327 | * | |
8328 | ***************************************************************************/ | |
e4c780b1 | 8329 | static int32_t |
d37ea5d5 AK |
8330 | e1000_get_software_flag(struct e1000_hw *hw) |
8331 | { | |
8332 | int32_t timeout = PHY_CFG_TIMEOUT; | |
8333 | uint32_t extcnf_ctrl; | |
8334 | ||
8335 | DEBUGFUNC("e1000_get_software_flag"); | |
8336 | ||
8337 | if (hw->mac_type == e1000_ich8lan) { | |
8338 | while (timeout) { | |
8339 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
8340 | extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; | |
8341 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
8342 | ||
8343 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
8344 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) | |
8345 | break; | |
f8ec4733 | 8346 | mdelay(1); |
d37ea5d5 AK |
8347 | timeout--; |
8348 | } | |
8349 | ||
8350 | if (!timeout) { | |
8351 | DEBUGOUT("FW or HW locks the resource too long.\n"); | |
8352 | return -E1000_ERR_CONFIG; | |
8353 | } | |
8354 | } | |
8355 | ||
8356 | return E1000_SUCCESS; | |
8357 | } | |
8358 | ||
8359 | /*************************************************************************** | |
8360 | * | |
8361 | * Release software semaphore FLAG bit (SWFLAG). | |
8362 | * SWFLAG is used to synchronize the access to all shared resource between | |
8363 | * SW, FW and HW. | |
8364 | * | |
8365 | * hw: Struct containing variables accessed by shared code | |
8366 | * | |
8367 | ***************************************************************************/ | |
e4c780b1 | 8368 | static void |
d37ea5d5 AK |
8369 | e1000_release_software_flag(struct e1000_hw *hw) |
8370 | { | |
8371 | uint32_t extcnf_ctrl; | |
8372 | ||
8373 | DEBUGFUNC("e1000_release_software_flag"); | |
8374 | ||
8375 | if (hw->mac_type == e1000_ich8lan) { | |
8376 | extcnf_ctrl= E1000_READ_REG(hw, EXTCNF_CTRL); | |
8377 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; | |
8378 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
8379 | } | |
8380 | ||
8381 | return; | |
8382 | } | |
8383 | ||
d37ea5d5 AK |
8384 | /****************************************************************************** |
8385 | * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access | |
8386 | * register. | |
8387 | * | |
8388 | * hw - Struct containing variables accessed by shared code | |
8389 | * offset - offset of word in the EEPROM to read | |
8390 | * data - word read from the EEPROM | |
8391 | * words - number of words to read | |
8392 | *****************************************************************************/ | |
e4c780b1 | 8393 | static int32_t |
d37ea5d5 AK |
8394 | e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, |
8395 | uint16_t *data) | |
8396 | { | |
8397 | int32_t error = E1000_SUCCESS; | |
8398 | uint32_t flash_bank = 0; | |
8399 | uint32_t act_offset = 0; | |
8400 | uint32_t bank_offset = 0; | |
8401 | uint16_t word = 0; | |
8402 | uint16_t i = 0; | |
8403 | ||
8404 | /* We need to know which is the valid flash bank. In the event | |
8405 | * that we didn't allocate eeprom_shadow_ram, we may not be | |
8406 | * managing flash_bank. So it cannot be trusted and needs | |
8407 | * to be updated with each read. | |
8408 | */ | |
8409 | /* Value of bit 22 corresponds to the flash bank we're on. */ | |
8410 | flash_bank = (E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL) ? 1 : 0; | |
8411 | ||
8412 | /* Adjust offset appropriately if we're on bank 1 - adjust for word size */ | |
8413 | bank_offset = flash_bank * (hw->flash_bank_size * 2); | |
8414 | ||
8415 | error = e1000_get_software_flag(hw); | |
8416 | if (error != E1000_SUCCESS) | |
8417 | return error; | |
8418 | ||
8419 | for (i = 0; i < words; i++) { | |
8420 | if (hw->eeprom_shadow_ram != NULL && | |
8421 | hw->eeprom_shadow_ram[offset+i].modified == TRUE) { | |
8422 | data[i] = hw->eeprom_shadow_ram[offset+i].eeprom_word; | |
8423 | } else { | |
8424 | /* The NVM part needs a byte offset, hence * 2 */ | |
8425 | act_offset = bank_offset + ((offset + i) * 2); | |
8426 | error = e1000_read_ich8_word(hw, act_offset, &word); | |
8427 | if (error != E1000_SUCCESS) | |
8428 | break; | |
8429 | data[i] = word; | |
8430 | } | |
8431 | } | |
8432 | ||
8433 | e1000_release_software_flag(hw); | |
8434 | ||
8435 | return error; | |
8436 | } | |
8437 | ||
8438 | /****************************************************************************** | |
8439 | * Writes a 16 bit word or words to the EEPROM using the ICH8's flash access | |
8440 | * register. Actually, writes are written to the shadow ram cache in the hw | |
8441 | * structure hw->e1000_shadow_ram. e1000_commit_shadow_ram flushes this to | |
8442 | * the NVM, which occurs when the NVM checksum is updated. | |
8443 | * | |
8444 | * hw - Struct containing variables accessed by shared code | |
8445 | * offset - offset of word in the EEPROM to write | |
8446 | * words - number of words to write | |
8447 | * data - words to write to the EEPROM | |
8448 | *****************************************************************************/ | |
e4c780b1 | 8449 | static int32_t |
d37ea5d5 AK |
8450 | e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, |
8451 | uint16_t *data) | |
8452 | { | |
8453 | uint32_t i = 0; | |
8454 | int32_t error = E1000_SUCCESS; | |
8455 | ||
8456 | error = e1000_get_software_flag(hw); | |
8457 | if (error != E1000_SUCCESS) | |
8458 | return error; | |
8459 | ||
8460 | /* A driver can write to the NVM only if it has eeprom_shadow_ram | |
8461 | * allocated. Subsequent reads to the modified words are read from | |
8462 | * this cached structure as well. Writes will only go into this | |
8463 | * cached structure unless it's followed by a call to | |
8464 | * e1000_update_eeprom_checksum() where it will commit the changes | |
8465 | * and clear the "modified" field. | |
8466 | */ | |
8467 | if (hw->eeprom_shadow_ram != NULL) { | |
8468 | for (i = 0; i < words; i++) { | |
8469 | if ((offset + i) < E1000_SHADOW_RAM_WORDS) { | |
8470 | hw->eeprom_shadow_ram[offset+i].modified = TRUE; | |
8471 | hw->eeprom_shadow_ram[offset+i].eeprom_word = data[i]; | |
8472 | } else { | |
8473 | error = -E1000_ERR_EEPROM; | |
8474 | break; | |
8475 | } | |
8476 | } | |
8477 | } else { | |
8478 | /* Drivers have the option to not allocate eeprom_shadow_ram as long | |
8479 | * as they don't perform any NVM writes. An attempt in doing so | |
8480 | * will result in this error. | |
8481 | */ | |
8482 | error = -E1000_ERR_EEPROM; | |
8483 | } | |
8484 | ||
8485 | e1000_release_software_flag(hw); | |
8486 | ||
8487 | return error; | |
8488 | } | |
8489 | ||
8490 | /****************************************************************************** | |
8491 | * This function does initial flash setup so that a new read/write/erase cycle | |
8492 | * can be started. | |
8493 | * | |
8494 | * hw - The pointer to the hw structure | |
8495 | ****************************************************************************/ | |
e4c780b1 | 8496 | static int32_t |
d37ea5d5 AK |
8497 | e1000_ich8_cycle_init(struct e1000_hw *hw) |
8498 | { | |
8499 | union ich8_hws_flash_status hsfsts; | |
8500 | int32_t error = E1000_ERR_EEPROM; | |
8501 | int32_t i = 0; | |
8502 | ||
8503 | DEBUGFUNC("e1000_ich8_cycle_init"); | |
8504 | ||
2df7d59f | 8505 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8506 | |
8507 | /* May be check the Flash Des Valid bit in Hw status */ | |
8508 | if (hsfsts.hsf_status.fldesvalid == 0) { | |
8509 | DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used."); | |
8510 | return error; | |
8511 | } | |
8512 | ||
8513 | /* Clear FCERR in Hw status by writing 1 */ | |
8514 | /* Clear DAEL in Hw status by writing a 1 */ | |
8515 | hsfsts.hsf_status.flcerr = 1; | |
8516 | hsfsts.hsf_status.dael = 1; | |
8517 | ||
2df7d59f | 8518 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); |
d37ea5d5 AK |
8519 | |
8520 | /* Either we should have a hardware SPI cycle in progress bit to check | |
8521 | * against, in order to start a new cycle or FDONE bit should be changed | |
8522 | * in the hardware so that it is 1 after harware reset, which can then be | |
8523 | * used as an indication whether a cycle is in progress or has been | |
8524 | * completed .. we should also have some software semaphore mechanism to | |
8525 | * guard FDONE or the cycle in progress bit so that two threads access to | |
8526 | * those bits can be sequentiallized or a way so that 2 threads dont | |
8527 | * start the cycle at the same time */ | |
8528 | ||
8529 | if (hsfsts.hsf_status.flcinprog == 0) { | |
8530 | /* There is no cycle running at present, so we can start a cycle */ | |
8531 | /* Begin by setting Flash Cycle Done. */ | |
8532 | hsfsts.hsf_status.flcdone = 1; | |
2df7d59f | 8533 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); |
d37ea5d5 AK |
8534 | error = E1000_SUCCESS; |
8535 | } else { | |
8536 | /* otherwise poll for sometime so the current cycle has a chance | |
8537 | * to end before giving up. */ | |
2df7d59f JK |
8538 | for (i = 0; i < ICH_FLASH_COMMAND_TIMEOUT; i++) { |
8539 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); | |
d37ea5d5 AK |
8540 | if (hsfsts.hsf_status.flcinprog == 0) { |
8541 | error = E1000_SUCCESS; | |
8542 | break; | |
8543 | } | |
8544 | udelay(1); | |
8545 | } | |
8546 | if (error == E1000_SUCCESS) { | |
8547 | /* Successful in waiting for previous cycle to timeout, | |
8548 | * now set the Flash Cycle Done. */ | |
8549 | hsfsts.hsf_status.flcdone = 1; | |
2df7d59f | 8550 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); |
d37ea5d5 AK |
8551 | } else { |
8552 | DEBUGOUT("Flash controller busy, cannot get access"); | |
8553 | } | |
8554 | } | |
8555 | return error; | |
8556 | } | |
8557 | ||
8558 | /****************************************************************************** | |
8559 | * This function starts a flash cycle and waits for its completion | |
8560 | * | |
8561 | * hw - The pointer to the hw structure | |
8562 | ****************************************************************************/ | |
e4c780b1 | 8563 | static int32_t |
d37ea5d5 AK |
8564 | e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout) |
8565 | { | |
8566 | union ich8_hws_flash_ctrl hsflctl; | |
8567 | union ich8_hws_flash_status hsfsts; | |
8568 | int32_t error = E1000_ERR_EEPROM; | |
8569 | uint32_t i = 0; | |
8570 | ||
8571 | /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ | |
2df7d59f | 8572 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
d37ea5d5 | 8573 | hsflctl.hsf_ctrl.flcgo = 1; |
2df7d59f | 8574 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); |
d37ea5d5 AK |
8575 | |
8576 | /* wait till FDONE bit is set to 1 */ | |
8577 | do { | |
2df7d59f | 8578 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8579 | if (hsfsts.hsf_status.flcdone == 1) |
8580 | break; | |
8581 | udelay(1); | |
8582 | i++; | |
8583 | } while (i < timeout); | |
8584 | if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) { | |
8585 | error = E1000_SUCCESS; | |
8586 | } | |
8587 | return error; | |
8588 | } | |
8589 | ||
8590 | /****************************************************************************** | |
8591 | * Reads a byte or word from the NVM using the ICH8 flash access registers. | |
8592 | * | |
8593 | * hw - The pointer to the hw structure | |
8594 | * index - The index of the byte or word to read. | |
8595 | * size - Size of data to read, 1=byte 2=word | |
8596 | * data - Pointer to the word to store the value read. | |
8597 | *****************************************************************************/ | |
e4c780b1 | 8598 | static int32_t |
d37ea5d5 AK |
8599 | e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, |
8600 | uint32_t size, uint16_t* data) | |
8601 | { | |
8602 | union ich8_hws_flash_status hsfsts; | |
8603 | union ich8_hws_flash_ctrl hsflctl; | |
8604 | uint32_t flash_linear_address; | |
8605 | uint32_t flash_data = 0; | |
8606 | int32_t error = -E1000_ERR_EEPROM; | |
8607 | int32_t count = 0; | |
8608 | ||
8609 | DEBUGFUNC("e1000_read_ich8_data"); | |
8610 | ||
8611 | if (size < 1 || size > 2 || data == 0x0 || | |
2df7d59f | 8612 | index > ICH_FLASH_LINEAR_ADDR_MASK) |
d37ea5d5 AK |
8613 | return error; |
8614 | ||
2df7d59f | 8615 | flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + |
d37ea5d5 AK |
8616 | hw->flash_base_addr; |
8617 | ||
8618 | do { | |
8619 | udelay(1); | |
8620 | /* Steps */ | |
8621 | error = e1000_ich8_cycle_init(hw); | |
8622 | if (error != E1000_SUCCESS) | |
8623 | break; | |
8624 | ||
2df7d59f | 8625 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
d37ea5d5 AK |
8626 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ |
8627 | hsflctl.hsf_ctrl.fldbcount = size - 1; | |
2df7d59f JK |
8628 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; |
8629 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); | |
d37ea5d5 AK |
8630 | |
8631 | /* Write the last 24 bits of index into Flash Linear address field in | |
8632 | * Flash Address */ | |
8633 | /* TODO: TBD maybe check the index against the size of flash */ | |
8634 | ||
2df7d59f | 8635 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); |
d37ea5d5 | 8636 | |
2df7d59f | 8637 | error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); |
d37ea5d5 AK |
8638 | |
8639 | /* Check if FCERR is set to 1, if set to 1, clear it and try the whole | |
8640 | * sequence a few more times, else read in (shift in) the Flash Data0, | |
8641 | * the order is least significant byte first msb to lsb */ | |
8642 | if (error == E1000_SUCCESS) { | |
2df7d59f | 8643 | flash_data = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0); |
d37ea5d5 AK |
8644 | if (size == 1) { |
8645 | *data = (uint8_t)(flash_data & 0x000000FF); | |
8646 | } else if (size == 2) { | |
8647 | *data = (uint16_t)(flash_data & 0x0000FFFF); | |
8648 | } | |
8649 | break; | |
8650 | } else { | |
8651 | /* If we've gotten here, then things are probably completely hosed, | |
8652 | * but if the error condition is detected, it won't hurt to give | |
2df7d59f | 8653 | * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. |
d37ea5d5 | 8654 | */ |
2df7d59f | 8655 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8656 | if (hsfsts.hsf_status.flcerr == 1) { |
8657 | /* Repeat for some time before giving up. */ | |
8658 | continue; | |
8659 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8660 | DEBUGOUT("Timeout error - flash cycle did not complete."); | |
8661 | break; | |
8662 | } | |
8663 | } | |
2df7d59f | 8664 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); |
d37ea5d5 AK |
8665 | |
8666 | return error; | |
8667 | } | |
8668 | ||
8669 | /****************************************************************************** | |
8670 | * Writes One /two bytes to the NVM using the ICH8 flash access registers. | |
8671 | * | |
8672 | * hw - The pointer to the hw structure | |
8673 | * index - The index of the byte/word to read. | |
8674 | * size - Size of data to read, 1=byte 2=word | |
8675 | * data - The byte(s) to write to the NVM. | |
8676 | *****************************************************************************/ | |
e4c780b1 | 8677 | static int32_t |
d37ea5d5 AK |
8678 | e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, |
8679 | uint16_t data) | |
8680 | { | |
8681 | union ich8_hws_flash_status hsfsts; | |
8682 | union ich8_hws_flash_ctrl hsflctl; | |
8683 | uint32_t flash_linear_address; | |
8684 | uint32_t flash_data = 0; | |
8685 | int32_t error = -E1000_ERR_EEPROM; | |
8686 | int32_t count = 0; | |
8687 | ||
8688 | DEBUGFUNC("e1000_write_ich8_data"); | |
8689 | ||
8690 | if (size < 1 || size > 2 || data > size * 0xff || | |
2df7d59f | 8691 | index > ICH_FLASH_LINEAR_ADDR_MASK) |
d37ea5d5 AK |
8692 | return error; |
8693 | ||
2df7d59f | 8694 | flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + |
d37ea5d5 AK |
8695 | hw->flash_base_addr; |
8696 | ||
8697 | do { | |
8698 | udelay(1); | |
8699 | /* Steps */ | |
8700 | error = e1000_ich8_cycle_init(hw); | |
8701 | if (error != E1000_SUCCESS) | |
8702 | break; | |
8703 | ||
2df7d59f | 8704 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
d37ea5d5 AK |
8705 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ |
8706 | hsflctl.hsf_ctrl.fldbcount = size -1; | |
2df7d59f JK |
8707 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; |
8708 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); | |
d37ea5d5 AK |
8709 | |
8710 | /* Write the last 24 bits of index into Flash Linear address field in | |
8711 | * Flash Address */ | |
2df7d59f | 8712 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); |
d37ea5d5 AK |
8713 | |
8714 | if (size == 1) | |
8715 | flash_data = (uint32_t)data & 0x00FF; | |
8716 | else | |
8717 | flash_data = (uint32_t)data; | |
8718 | ||
2df7d59f | 8719 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data); |
d37ea5d5 AK |
8720 | |
8721 | /* check if FCERR is set to 1 , if set to 1, clear it and try the whole | |
8722 | * sequence a few more times else done */ | |
2df7d59f | 8723 | error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); |
d37ea5d5 AK |
8724 | if (error == E1000_SUCCESS) { |
8725 | break; | |
8726 | } else { | |
8727 | /* If we're here, then things are most likely completely hosed, | |
8728 | * but if the error condition is detected, it won't hurt to give | |
2df7d59f | 8729 | * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. |
d37ea5d5 | 8730 | */ |
2df7d59f | 8731 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8732 | if (hsfsts.hsf_status.flcerr == 1) { |
8733 | /* Repeat for some time before giving up. */ | |
8734 | continue; | |
8735 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8736 | DEBUGOUT("Timeout error - flash cycle did not complete."); | |
8737 | break; | |
8738 | } | |
8739 | } | |
2df7d59f | 8740 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); |
d37ea5d5 AK |
8741 | |
8742 | return error; | |
8743 | } | |
8744 | ||
8745 | /****************************************************************************** | |
8746 | * Reads a single byte from the NVM using the ICH8 flash access registers. | |
8747 | * | |
8748 | * hw - pointer to e1000_hw structure | |
8749 | * index - The index of the byte to read. | |
8750 | * data - Pointer to a byte to store the value read. | |
8751 | *****************************************************************************/ | |
e4c780b1 | 8752 | static int32_t |
d37ea5d5 AK |
8753 | e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t* data) |
8754 | { | |
8755 | int32_t status = E1000_SUCCESS; | |
8756 | uint16_t word = 0; | |
8757 | ||
8758 | status = e1000_read_ich8_data(hw, index, 1, &word); | |
8759 | if (status == E1000_SUCCESS) { | |
8760 | *data = (uint8_t)word; | |
8761 | } | |
8762 | ||
8763 | return status; | |
8764 | } | |
8765 | ||
8766 | /****************************************************************************** | |
8767 | * Writes a single byte to the NVM using the ICH8 flash access registers. | |
8768 | * Performs verification by reading back the value and then going through | |
8769 | * a retry algorithm before giving up. | |
8770 | * | |
8771 | * hw - pointer to e1000_hw structure | |
8772 | * index - The index of the byte to write. | |
8773 | * byte - The byte to write to the NVM. | |
8774 | *****************************************************************************/ | |
e4c780b1 | 8775 | static int32_t |
d37ea5d5 AK |
8776 | e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte) |
8777 | { | |
8778 | int32_t error = E1000_SUCCESS; | |
2a88c173 | 8779 | int32_t program_retries = 0; |
d37ea5d5 | 8780 | |
2a88c173 | 8781 | DEBUGOUT2("Byte := %2.2X Offset := %d\n", byte, index); |
d37ea5d5 | 8782 | |
2a88c173 JK |
8783 | error = e1000_write_ich8_byte(hw, index, byte); |
8784 | ||
8785 | if (error != E1000_SUCCESS) { | |
8786 | for (program_retries = 0; program_retries < 100; program_retries++) { | |
8787 | DEBUGOUT2("Retrying \t Byte := %2.2X Offset := %d\n", byte, index); | |
8788 | error = e1000_write_ich8_byte(hw, index, byte); | |
8789 | udelay(100); | |
8790 | if (error == E1000_SUCCESS) | |
8791 | break; | |
8792 | } | |
d37ea5d5 | 8793 | } |
2a88c173 | 8794 | |
d37ea5d5 AK |
8795 | if (program_retries == 100) |
8796 | error = E1000_ERR_EEPROM; | |
8797 | ||
8798 | return error; | |
8799 | } | |
8800 | ||
8801 | /****************************************************************************** | |
8802 | * Writes a single byte to the NVM using the ICH8 flash access registers. | |
8803 | * | |
8804 | * hw - pointer to e1000_hw structure | |
8805 | * index - The index of the byte to read. | |
8806 | * data - The byte to write to the NVM. | |
8807 | *****************************************************************************/ | |
e4c780b1 | 8808 | static int32_t |
d37ea5d5 AK |
8809 | e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t data) |
8810 | { | |
8811 | int32_t status = E1000_SUCCESS; | |
8812 | uint16_t word = (uint16_t)data; | |
8813 | ||
8814 | status = e1000_write_ich8_data(hw, index, 1, word); | |
8815 | ||
8816 | return status; | |
8817 | } | |
8818 | ||
8819 | /****************************************************************************** | |
8820 | * Reads a word from the NVM using the ICH8 flash access registers. | |
8821 | * | |
8822 | * hw - pointer to e1000_hw structure | |
8823 | * index - The starting byte index of the word to read. | |
8824 | * data - Pointer to a word to store the value read. | |
8825 | *****************************************************************************/ | |
e4c780b1 | 8826 | static int32_t |
d37ea5d5 AK |
8827 | e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data) |
8828 | { | |
8829 | int32_t status = E1000_SUCCESS; | |
8830 | status = e1000_read_ich8_data(hw, index, 2, data); | |
8831 | return status; | |
8832 | } | |
8833 | ||
8834 | /****************************************************************************** | |
2a88c173 JK |
8835 | * Erases the bank specified. Each bank may be a 4, 8 or 64k block. Banks are 0 |
8836 | * based. | |
d37ea5d5 AK |
8837 | * |
8838 | * hw - pointer to e1000_hw structure | |
2a88c173 | 8839 | * bank - 0 for first bank, 1 for second bank |
d37ea5d5 | 8840 | * |
2a88c173 JK |
8841 | * Note that this function may actually erase as much as 8 or 64 KBytes. The |
8842 | * amount of NVM used in each bank is a *minimum* of 4 KBytes, but in fact the | |
8843 | * bank size may be 4, 8 or 64 KBytes | |
d37ea5d5 | 8844 | *****************************************************************************/ |
2a88c173 JK |
8845 | int32_t |
8846 | e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t bank) | |
d37ea5d5 AK |
8847 | { |
8848 | union ich8_hws_flash_status hsfsts; | |
8849 | union ich8_hws_flash_ctrl hsflctl; | |
8850 | uint32_t flash_linear_address; | |
8851 | int32_t count = 0; | |
8852 | int32_t error = E1000_ERR_EEPROM; | |
2a88c173 JK |
8853 | int32_t iteration; |
8854 | int32_t sub_sector_size = 0; | |
8855 | int32_t bank_size; | |
d37ea5d5 AK |
8856 | int32_t j = 0; |
8857 | int32_t error_flag = 0; | |
8858 | ||
2df7d59f | 8859 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8860 | |
8861 | /* Determine HW Sector size: Read BERASE bits of Hw flash Status register */ | |
8862 | /* 00: The Hw sector is 256 bytes, hence we need to erase 16 | |
8863 | * consecutive sectors. The start index for the nth Hw sector can be | |
2a88c173 | 8864 | * calculated as bank * 4096 + n * 256 |
d37ea5d5 AK |
8865 | * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. |
8866 | * The start index for the nth Hw sector can be calculated | |
2a88c173 JK |
8867 | * as bank * 4096 |
8868 | * 10: The HW sector is 8K bytes | |
8869 | * 11: The Hw sector size is 64K bytes */ | |
d37ea5d5 AK |
8870 | if (hsfsts.hsf_status.berasesz == 0x0) { |
8871 | /* Hw sector size 256 */ | |
2df7d59f JK |
8872 | sub_sector_size = ICH_FLASH_SEG_SIZE_256; |
8873 | bank_size = ICH_FLASH_SECTOR_SIZE; | |
8874 | iteration = ICH_FLASH_SECTOR_SIZE / ICH_FLASH_SEG_SIZE_256; | |
d37ea5d5 | 8875 | } else if (hsfsts.hsf_status.berasesz == 0x1) { |
2df7d59f | 8876 | bank_size = ICH_FLASH_SEG_SIZE_4K; |
d37ea5d5 AK |
8877 | iteration = 1; |
8878 | } else if (hsfsts.hsf_status.berasesz == 0x3) { | |
2df7d59f | 8879 | bank_size = ICH_FLASH_SEG_SIZE_64K; |
d37ea5d5 AK |
8880 | iteration = 1; |
8881 | } else { | |
8882 | return error; | |
8883 | } | |
8884 | ||
8885 | for (j = 0; j < iteration ; j++) { | |
8886 | do { | |
8887 | count++; | |
8888 | /* Steps */ | |
8889 | error = e1000_ich8_cycle_init(hw); | |
8890 | if (error != E1000_SUCCESS) { | |
8891 | error_flag = 1; | |
8892 | break; | |
8893 | } | |
8894 | ||
8895 | /* Write a value 11 (block Erase) in Flash Cycle field in Hw flash | |
8896 | * Control */ | |
2df7d59f JK |
8897 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
8898 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; | |
8899 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); | |
d37ea5d5 AK |
8900 | |
8901 | /* Write the last 24 bits of an index within the block into Flash | |
8902 | * Linear address field in Flash Address. This probably needs to | |
2a88c173 JK |
8903 | * be calculated here based off the on-chip erase sector size and |
8904 | * the software bank size (4, 8 or 64 KBytes) */ | |
8905 | flash_linear_address = bank * bank_size + j * sub_sector_size; | |
d37ea5d5 | 8906 | flash_linear_address += hw->flash_base_addr; |
2df7d59f | 8907 | flash_linear_address &= ICH_FLASH_LINEAR_ADDR_MASK; |
d37ea5d5 | 8908 | |
2df7d59f | 8909 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); |
d37ea5d5 | 8910 | |
2df7d59f | 8911 | error = e1000_ich8_flash_cycle(hw, ICH_FLASH_ERASE_TIMEOUT); |
d37ea5d5 AK |
8912 | /* Check if FCERR is set to 1. If 1, clear it and try the whole |
8913 | * sequence a few more times else Done */ | |
8914 | if (error == E1000_SUCCESS) { | |
8915 | break; | |
8916 | } else { | |
2df7d59f | 8917 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8918 | if (hsfsts.hsf_status.flcerr == 1) { |
8919 | /* repeat for some time before giving up */ | |
8920 | continue; | |
8921 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8922 | error_flag = 1; | |
8923 | break; | |
8924 | } | |
8925 | } | |
2df7d59f | 8926 | } while ((count < ICH_FLASH_CYCLE_REPEAT_COUNT) && !error_flag); |
d37ea5d5 AK |
8927 | if (error_flag == 1) |
8928 | break; | |
8929 | } | |
8930 | if (error_flag != 1) | |
8931 | error = E1000_SUCCESS; | |
8932 | return error; | |
8933 | } | |
8934 | ||
e4c780b1 | 8935 | static int32_t |
d37ea5d5 AK |
8936 | e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, |
8937 | uint32_t cnf_base_addr, uint32_t cnf_size) | |
8938 | { | |
8939 | uint32_t ret_val = E1000_SUCCESS; | |
8940 | uint16_t word_addr, reg_data, reg_addr; | |
8941 | uint16_t i; | |
8942 | ||
8943 | /* cnf_base_addr is in DWORD */ | |
8944 | word_addr = (uint16_t)(cnf_base_addr << 1); | |
8945 | ||
8946 | /* cnf_size is returned in size of dwords */ | |
8947 | for (i = 0; i < cnf_size; i++) { | |
8948 | ret_val = e1000_read_eeprom(hw, (word_addr + i*2), 1, ®_data); | |
8949 | if (ret_val) | |
8950 | return ret_val; | |
8951 | ||
8952 | ret_val = e1000_read_eeprom(hw, (word_addr + i*2 + 1), 1, ®_addr); | |
8953 | if (ret_val) | |
8954 | return ret_val; | |
8955 | ||
8956 | ret_val = e1000_get_software_flag(hw); | |
8957 | if (ret_val != E1000_SUCCESS) | |
8958 | return ret_val; | |
8959 | ||
8960 | ret_val = e1000_write_phy_reg_ex(hw, (uint32_t)reg_addr, reg_data); | |
8961 | ||
8962 | e1000_release_software_flag(hw); | |
8963 | } | |
8964 | ||
8965 | return ret_val; | |
8966 | } | |
8967 | ||
8968 | ||
2a88c173 JK |
8969 | /****************************************************************************** |
8970 | * This function initializes the PHY from the NVM on ICH8 platforms. This | |
8971 | * is needed due to an issue where the NVM configuration is not properly | |
8972 | * autoloaded after power transitions. Therefore, after each PHY reset, we | |
8973 | * will load the configuration data out of the NVM manually. | |
8974 | * | |
8975 | * hw: Struct containing variables accessed by shared code | |
8976 | *****************************************************************************/ | |
e4c780b1 | 8977 | static int32_t |
d37ea5d5 AK |
8978 | e1000_init_lcd_from_nvm(struct e1000_hw *hw) |
8979 | { | |
8980 | uint32_t reg_data, cnf_base_addr, cnf_size, ret_val, loop; | |
8981 | ||
8982 | if (hw->phy_type != e1000_phy_igp_3) | |
8983 | return E1000_SUCCESS; | |
8984 | ||
8985 | /* Check if SW needs configure the PHY */ | |
8986 | reg_data = E1000_READ_REG(hw, FEXTNVM); | |
8987 | if (!(reg_data & FEXTNVM_SW_CONFIG)) | |
8988 | return E1000_SUCCESS; | |
8989 | ||
8990 | /* Wait for basic configuration completes before proceeding*/ | |
8991 | loop = 0; | |
8992 | do { | |
8993 | reg_data = E1000_READ_REG(hw, STATUS) & E1000_STATUS_LAN_INIT_DONE; | |
8994 | udelay(100); | |
8995 | loop++; | |
8996 | } while ((!reg_data) && (loop < 50)); | |
8997 | ||
8998 | /* Clear the Init Done bit for the next init event */ | |
8999 | reg_data = E1000_READ_REG(hw, STATUS); | |
9000 | reg_data &= ~E1000_STATUS_LAN_INIT_DONE; | |
9001 | E1000_WRITE_REG(hw, STATUS, reg_data); | |
9002 | ||
9003 | /* Make sure HW does not configure LCD from PHY extended configuration | |
9004 | before SW configuration */ | |
9005 | reg_data = E1000_READ_REG(hw, EXTCNF_CTRL); | |
9006 | if ((reg_data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) == 0x0000) { | |
9007 | reg_data = E1000_READ_REG(hw, EXTCNF_SIZE); | |
9008 | cnf_size = reg_data & E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH; | |
9009 | cnf_size >>= 16; | |
9010 | if (cnf_size) { | |
9011 | reg_data = E1000_READ_REG(hw, EXTCNF_CTRL); | |
9012 | cnf_base_addr = reg_data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER; | |
9013 | /* cnf_base_addr is in DWORD */ | |
9014 | cnf_base_addr >>= 16; | |
9015 | ||
9016 | /* Configure LCD from extended configuration region. */ | |
9017 | ret_val = e1000_init_lcd_from_nvm_config_region(hw, cnf_base_addr, | |
9018 | cnf_size); | |
9019 | if (ret_val) | |
9020 | return ret_val; | |
9021 | } | |
9022 | } | |
9023 | ||
9024 | return E1000_SUCCESS; | |
9025 | } | |
9026 |