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8ceee660 BH |
1 | /**************************************************************************** |
2 | * Driver for Solarflare Solarstorm network controllers and boards | |
04300d24 | 3 | * Copyright 2007-2008 Solarflare Communications Inc. |
8ceee660 BH |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published | |
7 | * by the Free Software Foundation, incorporated herein by reference. | |
8 | */ | |
9 | ||
c9597d4f BH |
10 | #include <linux/rtnetlink.h> |
11 | ||
8ceee660 BH |
12 | #include "net_driver.h" |
13 | #include "phy.h" | |
8ceee660 | 14 | #include "efx.h" |
c9597d4f | 15 | #include "falcon.h" |
3e6c4538 | 16 | #include "regs.h" |
12d00cad | 17 | #include "io.h" |
3e133c44 | 18 | #include "workarounds.h" |
8ceee660 BH |
19 | |
20 | /* Macros for unpacking the board revision */ | |
21 | /* The revision info is in host byte order. */ | |
3473a5b1 BH |
22 | #define FALCON_BOARD_TYPE(_rev) (_rev >> 8) |
23 | #define FALCON_BOARD_MAJOR(_rev) ((_rev >> 4) & 0xf) | |
24 | #define FALCON_BOARD_MINOR(_rev) (_rev & 0xf) | |
25 | ||
26 | /* Board types */ | |
c9597d4f | 27 | #define FALCON_BOARD_SFE4001 0x01 |
3473a5b1 BH |
28 | #define FALCON_BOARD_SFE4002 0x02 |
29 | #define FALCON_BOARD_SFN4111T 0x51 | |
30 | #define FALCON_BOARD_SFN4112F 0x52 | |
8ceee660 BH |
31 | |
32 | /* Blink support. If the PHY has no auto-blink mode so we hang it off a timer */ | |
33 | #define BLINK_INTERVAL (HZ/2) | |
34 | ||
35 | static void blink_led_timer(unsigned long context) | |
36 | { | |
37 | struct efx_nic *efx = (struct efx_nic *)context; | |
38 | struct efx_blinker *bl = &efx->board_info.blinker; | |
8129d217 | 39 | efx->board_info.set_id_led(efx, bl->state); |
8ceee660 | 40 | bl->state = !bl->state; |
4cc58bde BH |
41 | if (bl->resubmit) |
42 | mod_timer(&bl->timer, jiffies + BLINK_INTERVAL); | |
8ceee660 BH |
43 | } |
44 | ||
dc8cfa55 | 45 | static void board_blink(struct efx_nic *efx, bool blink) |
8ceee660 BH |
46 | { |
47 | struct efx_blinker *blinker = &efx->board_info.blinker; | |
48 | ||
49 | /* The rtnl mutex serialises all ethtool ioctls, so | |
50 | * nothing special needs doing here. */ | |
51 | if (blink) { | |
dc8cfa55 BH |
52 | blinker->resubmit = true; |
53 | blinker->state = false; | |
8ceee660 BH |
54 | setup_timer(&blinker->timer, blink_led_timer, |
55 | (unsigned long)efx); | |
4cc58bde | 56 | mod_timer(&blinker->timer, jiffies + BLINK_INTERVAL); |
8ceee660 | 57 | } else { |
dc8cfa55 | 58 | blinker->resubmit = false; |
8ceee660 BH |
59 | if (blinker->timer.function) |
60 | del_timer_sync(&blinker->timer); | |
8129d217 | 61 | efx->board_info.init_leds(efx); |
8ceee660 BH |
62 | } |
63 | } | |
64 | ||
3e133c44 BH |
65 | /***************************************************************************** |
66 | * Support for LM87 sensor chip used on several boards | |
67 | */ | |
68 | #define LM87_REG_ALARMS1 0x41 | |
69 | #define LM87_REG_ALARMS2 0x42 | |
70 | #define LM87_IN_LIMITS(nr, _min, _max) \ | |
71 | 0x2B + (nr) * 2, _max, 0x2C + (nr) * 2, _min | |
72 | #define LM87_AIN_LIMITS(nr, _min, _max) \ | |
73 | 0x3B + (nr), _max, 0x1A + (nr), _min | |
74 | #define LM87_TEMP_INT_LIMITS(_min, _max) \ | |
75 | 0x39, _max, 0x3A, _min | |
76 | #define LM87_TEMP_EXT1_LIMITS(_min, _max) \ | |
77 | 0x37, _max, 0x38, _min | |
78 | ||
79 | #define LM87_ALARM_TEMP_INT 0x10 | |
80 | #define LM87_ALARM_TEMP_EXT1 0x20 | |
81 | ||
82 | #if defined(CONFIG_SENSORS_LM87) || defined(CONFIG_SENSORS_LM87_MODULE) | |
83 | ||
84 | static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info, | |
85 | const u8 *reg_values) | |
86 | { | |
87 | struct i2c_client *client = i2c_new_device(&efx->i2c_adap, info); | |
88 | int rc; | |
89 | ||
90 | if (!client) | |
91 | return -EIO; | |
92 | ||
93 | while (*reg_values) { | |
94 | u8 reg = *reg_values++; | |
95 | u8 value = *reg_values++; | |
96 | rc = i2c_smbus_write_byte_data(client, reg, value); | |
97 | if (rc) | |
98 | goto err; | |
99 | } | |
100 | ||
101 | efx->board_info.hwmon_client = client; | |
102 | return 0; | |
103 | ||
104 | err: | |
105 | i2c_unregister_device(client); | |
106 | return rc; | |
107 | } | |
108 | ||
109 | static void efx_fini_lm87(struct efx_nic *efx) | |
110 | { | |
111 | i2c_unregister_device(efx->board_info.hwmon_client); | |
112 | } | |
113 | ||
114 | static int efx_check_lm87(struct efx_nic *efx, unsigned mask) | |
115 | { | |
116 | struct i2c_client *client = efx->board_info.hwmon_client; | |
117 | s32 alarms1, alarms2; | |
118 | ||
119 | /* If link is up then do not monitor temperature */ | |
120 | if (EFX_WORKAROUND_7884(efx) && efx->link_up) | |
121 | return 0; | |
122 | ||
123 | alarms1 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1); | |
124 | alarms2 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2); | |
125 | if (alarms1 < 0) | |
126 | return alarms1; | |
127 | if (alarms2 < 0) | |
128 | return alarms2; | |
129 | alarms1 &= mask; | |
130 | alarms2 &= mask >> 8; | |
131 | if (alarms1 || alarms2) { | |
132 | EFX_ERR(efx, | |
133 | "LM87 detected a hardware failure (status %02x:%02x)" | |
134 | "%s%s\n", | |
135 | alarms1, alarms2, | |
136 | (alarms1 & LM87_ALARM_TEMP_INT) ? " INTERNAL" : "", | |
137 | (alarms1 & LM87_ALARM_TEMP_EXT1) ? " EXTERNAL" : ""); | |
138 | return -ERANGE; | |
139 | } | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | #else /* !CONFIG_SENSORS_LM87 */ | |
145 | ||
146 | static inline int | |
147 | efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info, | |
148 | const u8 *reg_values) | |
149 | { | |
150 | return 0; | |
151 | } | |
152 | static inline void efx_fini_lm87(struct efx_nic *efx) | |
153 | { | |
154 | } | |
155 | static inline int efx_check_lm87(struct efx_nic *efx, unsigned mask) | |
156 | { | |
157 | return 0; | |
158 | } | |
159 | ||
160 | #endif /* CONFIG_SENSORS_LM87 */ | |
161 | ||
c9597d4f BH |
162 | /***************************************************************************** |
163 | * Support for the SFE4001 and SFN4111T NICs. | |
164 | * | |
165 | * The SFE4001 does not power-up fully at reset due to its high power | |
166 | * consumption. We control its power via a PCA9539 I/O expander. | |
167 | * Both boards have a MAX6647 temperature monitor which we expose to | |
168 | * the lm90 driver. | |
169 | * | |
170 | * This also provides minimal support for reflashing the PHY, which is | |
171 | * initiated by resetting it with the FLASH_CFG_1 pin pulled down. | |
172 | * On SFE4001 rev A2 and later this is connected to the 3V3X output of | |
173 | * the IO-expander; on the SFN4111T it is connected to Falcon's GPIO3. | |
174 | * We represent reflash mode as PHY_MODE_SPECIAL and make it mutually | |
175 | * exclusive with the network device being open. | |
176 | */ | |
177 | ||
178 | /************************************************************************** | |
179 | * Support for I2C IO Expander device on SFE40001 | |
180 | */ | |
181 | #define PCA9539 0x74 | |
182 | ||
183 | #define P0_IN 0x00 | |
184 | #define P0_OUT 0x02 | |
185 | #define P0_INVERT 0x04 | |
186 | #define P0_CONFIG 0x06 | |
187 | ||
188 | #define P0_EN_1V0X_LBN 0 | |
189 | #define P0_EN_1V0X_WIDTH 1 | |
190 | #define P0_EN_1V2_LBN 1 | |
191 | #define P0_EN_1V2_WIDTH 1 | |
192 | #define P0_EN_2V5_LBN 2 | |
193 | #define P0_EN_2V5_WIDTH 1 | |
194 | #define P0_EN_3V3X_LBN 3 | |
195 | #define P0_EN_3V3X_WIDTH 1 | |
196 | #define P0_EN_5V_LBN 4 | |
197 | #define P0_EN_5V_WIDTH 1 | |
198 | #define P0_SHORTEN_JTAG_LBN 5 | |
199 | #define P0_SHORTEN_JTAG_WIDTH 1 | |
200 | #define P0_X_TRST_LBN 6 | |
201 | #define P0_X_TRST_WIDTH 1 | |
202 | #define P0_DSP_RESET_LBN 7 | |
203 | #define P0_DSP_RESET_WIDTH 1 | |
204 | ||
205 | #define P1_IN 0x01 | |
206 | #define P1_OUT 0x03 | |
207 | #define P1_INVERT 0x05 | |
208 | #define P1_CONFIG 0x07 | |
209 | ||
210 | #define P1_AFE_PWD_LBN 0 | |
211 | #define P1_AFE_PWD_WIDTH 1 | |
212 | #define P1_DSP_PWD25_LBN 1 | |
213 | #define P1_DSP_PWD25_WIDTH 1 | |
214 | #define P1_RESERVED_LBN 2 | |
215 | #define P1_RESERVED_WIDTH 2 | |
216 | #define P1_SPARE_LBN 4 | |
217 | #define P1_SPARE_WIDTH 4 | |
218 | ||
219 | /* Temperature Sensor */ | |
220 | #define MAX664X_REG_RSL 0x02 | |
221 | #define MAX664X_REG_WLHO 0x0B | |
222 | ||
223 | static void sfe4001_poweroff(struct efx_nic *efx) | |
224 | { | |
225 | struct i2c_client *ioexp_client = efx->board_info.ioexp_client; | |
226 | struct i2c_client *hwmon_client = efx->board_info.hwmon_client; | |
227 | ||
228 | /* Turn off all power rails and disable outputs */ | |
229 | i2c_smbus_write_byte_data(ioexp_client, P0_OUT, 0xff); | |
230 | i2c_smbus_write_byte_data(ioexp_client, P1_CONFIG, 0xff); | |
231 | i2c_smbus_write_byte_data(ioexp_client, P0_CONFIG, 0xff); | |
232 | ||
233 | /* Clear any over-temperature alert */ | |
234 | i2c_smbus_read_byte_data(hwmon_client, MAX664X_REG_RSL); | |
235 | } | |
236 | ||
237 | static int sfe4001_poweron(struct efx_nic *efx) | |
238 | { | |
239 | struct i2c_client *hwmon_client = efx->board_info.hwmon_client; | |
240 | struct i2c_client *ioexp_client = efx->board_info.ioexp_client; | |
241 | unsigned int i, j; | |
242 | int rc; | |
243 | u8 out; | |
244 | ||
245 | /* Clear any previous over-temperature alert */ | |
246 | rc = i2c_smbus_read_byte_data(hwmon_client, MAX664X_REG_RSL); | |
247 | if (rc < 0) | |
248 | return rc; | |
249 | ||
250 | /* Enable port 0 and port 1 outputs on IO expander */ | |
251 | rc = i2c_smbus_write_byte_data(ioexp_client, P0_CONFIG, 0x00); | |
252 | if (rc) | |
253 | return rc; | |
254 | rc = i2c_smbus_write_byte_data(ioexp_client, P1_CONFIG, | |
255 | 0xff & ~(1 << P1_SPARE_LBN)); | |
256 | if (rc) | |
257 | goto fail_on; | |
258 | ||
259 | /* If PHY power is on, turn it all off and wait 1 second to | |
260 | * ensure a full reset. | |
261 | */ | |
262 | rc = i2c_smbus_read_byte_data(ioexp_client, P0_OUT); | |
263 | if (rc < 0) | |
264 | goto fail_on; | |
265 | out = 0xff & ~((0 << P0_EN_1V2_LBN) | (0 << P0_EN_2V5_LBN) | | |
266 | (0 << P0_EN_3V3X_LBN) | (0 << P0_EN_5V_LBN) | | |
267 | (0 << P0_EN_1V0X_LBN)); | |
268 | if (rc != out) { | |
269 | EFX_INFO(efx, "power-cycling PHY\n"); | |
270 | rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out); | |
271 | if (rc) | |
272 | goto fail_on; | |
273 | schedule_timeout_uninterruptible(HZ); | |
274 | } | |
275 | ||
276 | for (i = 0; i < 20; ++i) { | |
277 | /* Turn on 1.2V, 2.5V, 3.3V and 5V power rails */ | |
278 | out = 0xff & ~((1 << P0_EN_1V2_LBN) | (1 << P0_EN_2V5_LBN) | | |
279 | (1 << P0_EN_3V3X_LBN) | (1 << P0_EN_5V_LBN) | | |
280 | (1 << P0_X_TRST_LBN)); | |
281 | if (efx->phy_mode & PHY_MODE_SPECIAL) | |
282 | out |= 1 << P0_EN_3V3X_LBN; | |
283 | ||
284 | rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out); | |
285 | if (rc) | |
286 | goto fail_on; | |
287 | msleep(10); | |
288 | ||
289 | /* Turn on 1V power rail */ | |
290 | out &= ~(1 << P0_EN_1V0X_LBN); | |
291 | rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out); | |
292 | if (rc) | |
293 | goto fail_on; | |
294 | ||
295 | EFX_INFO(efx, "waiting for DSP boot (attempt %d)...\n", i); | |
296 | ||
297 | /* In flash config mode, DSP does not turn on AFE, so | |
298 | * just wait 1 second. | |
299 | */ | |
300 | if (efx->phy_mode & PHY_MODE_SPECIAL) { | |
301 | schedule_timeout_uninterruptible(HZ); | |
302 | return 0; | |
303 | } | |
304 | ||
305 | for (j = 0; j < 10; ++j) { | |
306 | msleep(100); | |
307 | ||
308 | /* Check DSP has asserted AFE power line */ | |
309 | rc = i2c_smbus_read_byte_data(ioexp_client, P1_IN); | |
310 | if (rc < 0) | |
311 | goto fail_on; | |
312 | if (rc & (1 << P1_AFE_PWD_LBN)) | |
313 | return 0; | |
314 | } | |
315 | } | |
316 | ||
317 | EFX_INFO(efx, "timed out waiting for DSP boot\n"); | |
318 | rc = -ETIMEDOUT; | |
319 | fail_on: | |
320 | sfe4001_poweroff(efx); | |
321 | return rc; | |
322 | } | |
323 | ||
324 | static int sfn4111t_reset(struct efx_nic *efx) | |
325 | { | |
326 | efx_oword_t reg; | |
327 | ||
328 | /* GPIO 3 and the GPIO register are shared with I2C, so block that */ | |
329 | mutex_lock(&efx->i2c_adap.bus_lock); | |
330 | ||
331 | /* Pull RST_N (GPIO 2) low then let it up again, setting the | |
332 | * FLASH_CFG_1 strap (GPIO 3) appropriately. Only change the | |
333 | * output enables; the output levels should always be 0 (low) | |
334 | * and we rely on external pull-ups. */ | |
12d00cad | 335 | efx_reado(efx, ®, FR_AB_GPIO_CTL); |
3e6c4538 | 336 | EFX_SET_OWORD_FIELD(reg, FRF_AB_GPIO2_OEN, true); |
12d00cad | 337 | efx_writeo(efx, ®, FR_AB_GPIO_CTL); |
c9597d4f | 338 | msleep(1000); |
3e6c4538 BH |
339 | EFX_SET_OWORD_FIELD(reg, FRF_AB_GPIO2_OEN, false); |
340 | EFX_SET_OWORD_FIELD(reg, FRF_AB_GPIO3_OEN, | |
c9597d4f | 341 | !!(efx->phy_mode & PHY_MODE_SPECIAL)); |
12d00cad | 342 | efx_writeo(efx, ®, FR_AB_GPIO_CTL); |
c9597d4f BH |
343 | msleep(1); |
344 | ||
345 | mutex_unlock(&efx->i2c_adap.bus_lock); | |
346 | ||
347 | ssleep(1); | |
348 | return 0; | |
349 | } | |
350 | ||
351 | static ssize_t show_phy_flash_cfg(struct device *dev, | |
352 | struct device_attribute *attr, char *buf) | |
353 | { | |
354 | struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); | |
355 | return sprintf(buf, "%d\n", !!(efx->phy_mode & PHY_MODE_SPECIAL)); | |
356 | } | |
357 | ||
358 | static ssize_t set_phy_flash_cfg(struct device *dev, | |
359 | struct device_attribute *attr, | |
360 | const char *buf, size_t count) | |
361 | { | |
362 | struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); | |
363 | enum efx_phy_mode old_mode, new_mode; | |
364 | int err; | |
365 | ||
366 | rtnl_lock(); | |
367 | old_mode = efx->phy_mode; | |
368 | if (count == 0 || *buf == '0') | |
369 | new_mode = old_mode & ~PHY_MODE_SPECIAL; | |
370 | else | |
371 | new_mode = PHY_MODE_SPECIAL; | |
372 | if (old_mode == new_mode) { | |
373 | err = 0; | |
374 | } else if (efx->state != STATE_RUNNING || netif_running(efx->net_dev)) { | |
375 | err = -EBUSY; | |
376 | } else { | |
377 | /* Reset the PHY, reconfigure the MAC and enable/disable | |
378 | * MAC stats accordingly. */ | |
379 | efx->phy_mode = new_mode; | |
380 | if (new_mode & PHY_MODE_SPECIAL) | |
381 | efx_stats_disable(efx); | |
382 | if (efx->board_info.type == FALCON_BOARD_SFE4001) | |
383 | err = sfe4001_poweron(efx); | |
384 | else | |
385 | err = sfn4111t_reset(efx); | |
386 | efx_reconfigure_port(efx); | |
387 | if (!(new_mode & PHY_MODE_SPECIAL)) | |
388 | efx_stats_enable(efx); | |
389 | } | |
390 | rtnl_unlock(); | |
391 | ||
392 | return err ? err : count; | |
393 | } | |
394 | ||
395 | static DEVICE_ATTR(phy_flash_cfg, 0644, show_phy_flash_cfg, set_phy_flash_cfg); | |
396 | ||
397 | static void sfe4001_fini(struct efx_nic *efx) | |
398 | { | |
399 | EFX_INFO(efx, "%s\n", __func__); | |
400 | ||
401 | device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg); | |
402 | sfe4001_poweroff(efx); | |
403 | i2c_unregister_device(efx->board_info.ioexp_client); | |
404 | i2c_unregister_device(efx->board_info.hwmon_client); | |
405 | } | |
406 | ||
407 | static int sfe4001_check_hw(struct efx_nic *efx) | |
408 | { | |
409 | s32 status; | |
410 | ||
411 | /* If XAUI link is up then do not monitor */ | |
412 | if (EFX_WORKAROUND_7884(efx) && efx->mac_up) | |
413 | return 0; | |
414 | ||
415 | /* Check the powered status of the PHY. Lack of power implies that | |
416 | * the MAX6647 has shut down power to it, probably due to a temp. | |
417 | * alarm. Reading the power status rather than the MAX6647 status | |
418 | * directly because the later is read-to-clear and would thus | |
419 | * start to power up the PHY again when polled, causing us to blip | |
420 | * the power undesirably. | |
421 | * We know we can read from the IO expander because we did | |
422 | * it during power-on. Assume failure now is bad news. */ | |
423 | status = i2c_smbus_read_byte_data(efx->board_info.ioexp_client, P1_IN); | |
424 | if (status >= 0 && | |
425 | (status & ((1 << P1_AFE_PWD_LBN) | (1 << P1_DSP_PWD25_LBN))) != 0) | |
426 | return 0; | |
427 | ||
428 | /* Use board power control, not PHY power control */ | |
429 | sfe4001_poweroff(efx); | |
430 | efx->phy_mode = PHY_MODE_OFF; | |
431 | ||
432 | return (status < 0) ? -EIO : -ERANGE; | |
433 | } | |
434 | ||
435 | static struct i2c_board_info sfe4001_hwmon_info = { | |
436 | I2C_BOARD_INFO("max6647", 0x4e), | |
437 | }; | |
438 | ||
439 | /* This board uses an I2C expander to provider power to the PHY, which needs to | |
440 | * be turned on before the PHY can be used. | |
441 | * Context: Process context, rtnl lock held | |
442 | */ | |
443 | static int sfe4001_init(struct efx_nic *efx) | |
444 | { | |
445 | int rc; | |
446 | ||
447 | #if defined(CONFIG_SENSORS_LM90) || defined(CONFIG_SENSORS_LM90_MODULE) | |
448 | efx->board_info.hwmon_client = | |
449 | i2c_new_device(&efx->i2c_adap, &sfe4001_hwmon_info); | |
450 | #else | |
451 | efx->board_info.hwmon_client = | |
452 | i2c_new_dummy(&efx->i2c_adap, sfe4001_hwmon_info.addr); | |
453 | #endif | |
454 | if (!efx->board_info.hwmon_client) | |
455 | return -EIO; | |
456 | ||
457 | /* Raise board/PHY high limit from 85 to 90 degrees Celsius */ | |
458 | rc = i2c_smbus_write_byte_data(efx->board_info.hwmon_client, | |
459 | MAX664X_REG_WLHO, 90); | |
460 | if (rc) | |
461 | goto fail_hwmon; | |
462 | ||
463 | efx->board_info.ioexp_client = i2c_new_dummy(&efx->i2c_adap, PCA9539); | |
464 | if (!efx->board_info.ioexp_client) { | |
465 | rc = -EIO; | |
466 | goto fail_hwmon; | |
467 | } | |
468 | ||
469 | /* 10Xpress has fixed-function LED pins, so there is no board-specific | |
470 | * blink code. */ | |
471 | efx->board_info.blink = tenxpress_phy_blink; | |
472 | ||
473 | efx->board_info.monitor = sfe4001_check_hw; | |
474 | efx->board_info.fini = sfe4001_fini; | |
475 | ||
476 | if (efx->phy_mode & PHY_MODE_SPECIAL) { | |
477 | /* PHY won't generate a 156.25 MHz clock and MAC stats fetch | |
478 | * will fail. */ | |
479 | efx_stats_disable(efx); | |
480 | } | |
481 | rc = sfe4001_poweron(efx); | |
482 | if (rc) | |
483 | goto fail_ioexp; | |
484 | ||
485 | rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg); | |
486 | if (rc) | |
487 | goto fail_on; | |
488 | ||
489 | EFX_INFO(efx, "PHY is powered on\n"); | |
490 | return 0; | |
491 | ||
492 | fail_on: | |
493 | sfe4001_poweroff(efx); | |
494 | fail_ioexp: | |
495 | i2c_unregister_device(efx->board_info.ioexp_client); | |
496 | fail_hwmon: | |
497 | i2c_unregister_device(efx->board_info.hwmon_client); | |
498 | return rc; | |
499 | } | |
500 | ||
501 | static int sfn4111t_check_hw(struct efx_nic *efx) | |
502 | { | |
503 | s32 status; | |
504 | ||
505 | /* If XAUI link is up then do not monitor */ | |
506 | if (EFX_WORKAROUND_7884(efx) && efx->mac_up) | |
507 | return 0; | |
508 | ||
509 | /* Test LHIGH, RHIGH, FAULT, EOT and IOT alarms */ | |
510 | status = i2c_smbus_read_byte_data(efx->board_info.hwmon_client, | |
511 | MAX664X_REG_RSL); | |
512 | if (status < 0) | |
513 | return -EIO; | |
514 | if (status & 0x57) | |
515 | return -ERANGE; | |
516 | return 0; | |
517 | } | |
518 | ||
519 | static void sfn4111t_fini(struct efx_nic *efx) | |
520 | { | |
521 | EFX_INFO(efx, "%s\n", __func__); | |
522 | ||
523 | device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg); | |
524 | i2c_unregister_device(efx->board_info.hwmon_client); | |
525 | } | |
526 | ||
527 | static struct i2c_board_info sfn4111t_a0_hwmon_info = { | |
528 | I2C_BOARD_INFO("max6647", 0x4e), | |
529 | }; | |
530 | ||
531 | static struct i2c_board_info sfn4111t_r5_hwmon_info = { | |
532 | I2C_BOARD_INFO("max6646", 0x4d), | |
533 | }; | |
534 | ||
535 | static int sfn4111t_init(struct efx_nic *efx) | |
536 | { | |
537 | int i = 0; | |
538 | int rc; | |
539 | ||
540 | efx->board_info.hwmon_client = | |
541 | i2c_new_device(&efx->i2c_adap, | |
542 | (efx->board_info.minor < 5) ? | |
543 | &sfn4111t_a0_hwmon_info : | |
544 | &sfn4111t_r5_hwmon_info); | |
545 | if (!efx->board_info.hwmon_client) | |
546 | return -EIO; | |
547 | ||
548 | efx->board_info.blink = tenxpress_phy_blink; | |
549 | efx->board_info.monitor = sfn4111t_check_hw; | |
550 | efx->board_info.fini = sfn4111t_fini; | |
551 | ||
552 | rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg); | |
553 | if (rc) | |
554 | goto fail_hwmon; | |
555 | ||
556 | do { | |
557 | if (efx->phy_mode & PHY_MODE_SPECIAL) { | |
558 | /* PHY may not generate a 156.25 MHz clock and MAC | |
559 | * stats fetch will fail. */ | |
560 | efx_stats_disable(efx); | |
561 | sfn4111t_reset(efx); | |
562 | } | |
563 | rc = sft9001_wait_boot(efx); | |
564 | if (rc == 0) | |
565 | return 0; | |
566 | efx->phy_mode = PHY_MODE_SPECIAL; | |
567 | } while (rc == -EINVAL && ++i < 2); | |
568 | ||
569 | device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg); | |
570 | fail_hwmon: | |
571 | i2c_unregister_device(efx->board_info.hwmon_client); | |
572 | return rc; | |
573 | } | |
574 | ||
8ceee660 BH |
575 | /***************************************************************************** |
576 | * Support for the SFE4002 | |
577 | * | |
578 | */ | |
3e133c44 BH |
579 | static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */ |
580 | ||
581 | static const u8 sfe4002_lm87_regs[] = { | |
582 | LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */ | |
583 | LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */ | |
584 | LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */ | |
585 | LM87_IN_LIMITS(3, 0xb0, 0xc9), /* 5V: 4.6-5.2V */ | |
586 | LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */ | |
587 | LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */ | |
588 | LM87_AIN_LIMITS(0, 0xa0, 0xb2), /* AIN1: 1.66V +/- 5% */ | |
589 | LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */ | |
590 | LM87_TEMP_INT_LIMITS(10, 60), /* board */ | |
591 | LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */ | |
592 | 0 | |
593 | }; | |
594 | ||
595 | static struct i2c_board_info sfe4002_hwmon_info = { | |
596 | I2C_BOARD_INFO("lm87", 0x2e), | |
597 | .platform_data = &sfe4002_lm87_channel, | |
3e133c44 BH |
598 | }; |
599 | ||
8ceee660 BH |
600 | /****************************************************************************/ |
601 | /* LED allocations. Note that on rev A0 boards the schematic and the reality | |
602 | * differ: red and green are swapped. Below is the fixed (A1) layout (there | |
603 | * are only 3 A0 boards in existence, so no real reason to make this | |
604 | * conditional). | |
605 | */ | |
606 | #define SFE4002_FAULT_LED (2) /* Red */ | |
607 | #define SFE4002_RX_LED (0) /* Green */ | |
608 | #define SFE4002_TX_LED (1) /* Amber */ | |
609 | ||
8129d217 | 610 | static void sfe4002_init_leds(struct efx_nic *efx) |
8ceee660 BH |
611 | { |
612 | /* Set the TX and RX LEDs to reflect status and activity, and the | |
613 | * fault LED off */ | |
614 | xfp_set_led(efx, SFE4002_TX_LED, | |
615 | QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT); | |
616 | xfp_set_led(efx, SFE4002_RX_LED, | |
617 | QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT); | |
618 | xfp_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF); | |
8ceee660 BH |
619 | } |
620 | ||
8129d217 | 621 | static void sfe4002_set_id_led(struct efx_nic *efx, bool state) |
8ceee660 BH |
622 | { |
623 | xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON : | |
624 | QUAKE_LED_OFF); | |
625 | } | |
626 | ||
3e133c44 BH |
627 | static int sfe4002_check_hw(struct efx_nic *efx) |
628 | { | |
629 | /* A0 board rev. 4002s report a temperature fault the whole time | |
630 | * (bad sensor) so we mask it out. */ | |
631 | unsigned alarm_mask = | |
632 | (efx->board_info.major == 0 && efx->board_info.minor == 0) ? | |
633 | ~LM87_ALARM_TEMP_EXT1 : ~0; | |
634 | ||
635 | return efx_check_lm87(efx, alarm_mask); | |
636 | } | |
637 | ||
8ceee660 BH |
638 | static int sfe4002_init(struct efx_nic *efx) |
639 | { | |
3e133c44 BH |
640 | int rc = efx_init_lm87(efx, &sfe4002_hwmon_info, sfe4002_lm87_regs); |
641 | if (rc) | |
642 | return rc; | |
643 | efx->board_info.monitor = sfe4002_check_hw; | |
8ceee660 | 644 | efx->board_info.init_leds = sfe4002_init_leds; |
8129d217 | 645 | efx->board_info.set_id_led = sfe4002_set_id_led; |
8ceee660 | 646 | efx->board_info.blink = board_blink; |
3e133c44 | 647 | efx->board_info.fini = efx_fini_lm87; |
8ceee660 BH |
648 | return 0; |
649 | } | |
650 | ||
94f52cd1 BH |
651 | /***************************************************************************** |
652 | * Support for the SFN4112F | |
653 | * | |
654 | */ | |
655 | static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */ | |
656 | ||
657 | static const u8 sfn4112f_lm87_regs[] = { | |
658 | LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */ | |
659 | LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */ | |
660 | LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */ | |
661 | LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */ | |
662 | LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */ | |
663 | LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */ | |
664 | LM87_TEMP_INT_LIMITS(10, 60), /* board */ | |
665 | LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */ | |
666 | 0 | |
667 | }; | |
668 | ||
669 | static struct i2c_board_info sfn4112f_hwmon_info = { | |
670 | I2C_BOARD_INFO("lm87", 0x2e), | |
671 | .platform_data = &sfn4112f_lm87_channel, | |
94f52cd1 BH |
672 | }; |
673 | ||
674 | #define SFN4112F_ACT_LED 0 | |
675 | #define SFN4112F_LINK_LED 1 | |
676 | ||
677 | static void sfn4112f_init_leds(struct efx_nic *efx) | |
678 | { | |
679 | xfp_set_led(efx, SFN4112F_ACT_LED, | |
680 | QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACT); | |
681 | xfp_set_led(efx, SFN4112F_LINK_LED, | |
682 | QUAKE_LED_RXLINK | QUAKE_LED_LINK_STAT); | |
683 | } | |
684 | ||
685 | static void sfn4112f_set_id_led(struct efx_nic *efx, bool state) | |
686 | { | |
687 | xfp_set_led(efx, SFN4112F_LINK_LED, | |
688 | state ? QUAKE_LED_ON : QUAKE_LED_OFF); | |
689 | } | |
690 | ||
691 | static int sfn4112f_check_hw(struct efx_nic *efx) | |
692 | { | |
693 | /* Mask out unused sensors */ | |
694 | return efx_check_lm87(efx, ~0x48); | |
695 | } | |
696 | ||
697 | static int sfn4112f_init(struct efx_nic *efx) | |
698 | { | |
699 | int rc = efx_init_lm87(efx, &sfn4112f_hwmon_info, sfn4112f_lm87_regs); | |
700 | if (rc) | |
701 | return rc; | |
702 | efx->board_info.monitor = sfn4112f_check_hw; | |
703 | efx->board_info.init_leds = sfn4112f_init_leds; | |
704 | efx->board_info.set_id_led = sfn4112f_set_id_led; | |
705 | efx->board_info.blink = board_blink; | |
706 | efx->board_info.fini = efx_fini_lm87; | |
707 | return 0; | |
708 | } | |
709 | ||
8ceee660 BH |
710 | /* This will get expanded as board-specific details get moved out of the |
711 | * PHY drivers. */ | |
3473a5b1 BH |
712 | struct falcon_board_data { |
713 | u8 type; | |
8ceee660 BH |
714 | const char *ref_model; |
715 | const char *gen_type; | |
716 | int (*init) (struct efx_nic *nic); | |
717 | }; | |
718 | ||
8ceee660 | 719 | |
3473a5b1 BH |
720 | static struct falcon_board_data board_data[] = { |
721 | { FALCON_BOARD_SFE4001, "SFE4001", "10GBASE-T adapter", sfe4001_init }, | |
722 | { FALCON_BOARD_SFE4002, "SFE4002", "XFP adapter", sfe4002_init }, | |
723 | { FALCON_BOARD_SFN4111T, "SFN4111T", "100/1000/10GBASE-T adapter", | |
6f158d5f | 724 | sfn4111t_init }, |
3473a5b1 | 725 | { FALCON_BOARD_SFN4112F, "SFN4112F", "SFP+ adapter", |
94f52cd1 | 726 | sfn4112f_init }, |
8ceee660 BH |
727 | }; |
728 | ||
3473a5b1 | 729 | void falcon_probe_board(struct efx_nic *efx, u16 revision_info) |
8ceee660 | 730 | { |
3473a5b1 | 731 | struct falcon_board_data *data = NULL; |
04300d24 | 732 | int i; |
8ceee660 | 733 | |
3473a5b1 BH |
734 | efx->board_info.type = FALCON_BOARD_TYPE(revision_info); |
735 | efx->board_info.major = FALCON_BOARD_MAJOR(revision_info); | |
736 | efx->board_info.minor = FALCON_BOARD_MINOR(revision_info); | |
8ceee660 | 737 | |
04300d24 BH |
738 | for (i = 0; i < ARRAY_SIZE(board_data); i++) |
739 | if (board_data[i].type == efx->board_info.type) | |
740 | data = &board_data[i]; | |
8ceee660 | 741 | |
04300d24 | 742 | if (data) { |
8ceee660 BH |
743 | EFX_INFO(efx, "board is %s rev %c%d\n", |
744 | (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC) | |
745 | ? data->ref_model : data->gen_type, | |
746 | 'A' + efx->board_info.major, efx->board_info.minor); | |
04300d24 BH |
747 | efx->board_info.init = data->init; |
748 | } else { | |
749 | EFX_ERR(efx, "unknown board type %d\n", efx->board_info.type); | |
750 | } | |
8ceee660 | 751 | } |