| 1 | /* |
| 2 | * Copyright (c) 2014-2015 Hisilicon Limited. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | */ |
| 9 | |
| 10 | #include "hns_dsaf_mac.h" |
| 11 | #include "hns_dsaf_misc.h" |
| 12 | #include "hns_dsaf_ppe.h" |
| 13 | #include "hns_dsaf_reg.h" |
| 14 | |
| 15 | static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val) |
| 16 | { |
| 17 | if (dsaf_dev->sub_ctrl) |
| 18 | dsaf_write_syscon(dsaf_dev->sub_ctrl, reg, val); |
| 19 | else |
| 20 | dsaf_write_reg(dsaf_dev->sc_base, reg, val); |
| 21 | } |
| 22 | |
| 23 | static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg) |
| 24 | { |
| 25 | u32 ret; |
| 26 | |
| 27 | if (dsaf_dev->sub_ctrl) |
| 28 | ret = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg); |
| 29 | else |
| 30 | ret = dsaf_read_reg(dsaf_dev->sc_base, reg); |
| 31 | |
| 32 | return ret; |
| 33 | } |
| 34 | |
| 35 | void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status, |
| 36 | u16 speed, int data) |
| 37 | { |
| 38 | int speed_reg = 0; |
| 39 | u8 value; |
| 40 | |
| 41 | if (!mac_cb) { |
| 42 | pr_err("sfp_led_opt mac_dev is null!\n"); |
| 43 | return; |
| 44 | } |
| 45 | if (!mac_cb->cpld_ctrl) { |
| 46 | dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n", |
| 47 | mac_cb->mac_id); |
| 48 | return; |
| 49 | } |
| 50 | |
| 51 | if (speed == MAC_SPEED_10000) |
| 52 | speed_reg = 1; |
| 53 | |
| 54 | value = mac_cb->cpld_led_value; |
| 55 | |
| 56 | if (link_status) { |
| 57 | dsaf_set_bit(value, DSAF_LED_LINK_B, link_status); |
| 58 | dsaf_set_field(value, DSAF_LED_SPEED_M, |
| 59 | DSAF_LED_SPEED_S, speed_reg); |
| 60 | dsaf_set_bit(value, DSAF_LED_DATA_B, data); |
| 61 | |
| 62 | if (value != mac_cb->cpld_led_value) { |
| 63 | dsaf_write_syscon(mac_cb->cpld_ctrl, |
| 64 | mac_cb->cpld_ctrl_reg, value); |
| 65 | mac_cb->cpld_led_value = value; |
| 66 | } |
| 67 | } else { |
| 68 | dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, |
| 69 | CPLD_LED_DEFAULT_VALUE); |
| 70 | mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | void cpld_led_reset(struct hns_mac_cb *mac_cb) |
| 75 | { |
| 76 | if (!mac_cb || !mac_cb->cpld_ctrl) |
| 77 | return; |
| 78 | |
| 79 | dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, |
| 80 | CPLD_LED_DEFAULT_VALUE); |
| 81 | mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE; |
| 82 | } |
| 83 | |
| 84 | int cpld_set_led_id(struct hns_mac_cb *mac_cb, |
| 85 | enum hnae_led_state status) |
| 86 | { |
| 87 | switch (status) { |
| 88 | case HNAE_LED_ACTIVE: |
| 89 | mac_cb->cpld_led_value = |
| 90 | dsaf_read_syscon(mac_cb->cpld_ctrl, |
| 91 | mac_cb->cpld_ctrl_reg); |
| 92 | dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B, |
| 93 | CPLD_LED_ON_VALUE); |
| 94 | dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, |
| 95 | mac_cb->cpld_led_value); |
| 96 | return 2; |
| 97 | case HNAE_LED_INACTIVE: |
| 98 | dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B, |
| 99 | CPLD_LED_DEFAULT_VALUE); |
| 100 | dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, |
| 101 | mac_cb->cpld_led_value); |
| 102 | break; |
| 103 | default: |
| 104 | break; |
| 105 | } |
| 106 | |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | #define RESET_REQ_OR_DREQ 1 |
| 111 | |
| 112 | void hns_dsaf_rst(struct dsaf_device *dsaf_dev, u32 val) |
| 113 | { |
| 114 | u32 xbar_reg_addr; |
| 115 | u32 nt_reg_addr; |
| 116 | |
| 117 | if (!val) { |
| 118 | xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG; |
| 119 | nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG; |
| 120 | } else { |
| 121 | xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG; |
| 122 | nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG; |
| 123 | } |
| 124 | |
| 125 | dsaf_write_sub(dsaf_dev, xbar_reg_addr, RESET_REQ_OR_DREQ); |
| 126 | dsaf_write_sub(dsaf_dev, nt_reg_addr, RESET_REQ_OR_DREQ); |
| 127 | } |
| 128 | |
| 129 | void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val) |
| 130 | { |
| 131 | u32 reg_val = 0; |
| 132 | u32 reg_addr; |
| 133 | |
| 134 | if (port >= DSAF_XGE_NUM) |
| 135 | return; |
| 136 | |
| 137 | reg_val |= RESET_REQ_OR_DREQ; |
| 138 | reg_val |= 0x2082082 << dsaf_dev->mac_cb[port]->port_rst_off; |
| 139 | |
| 140 | if (val == 0) |
| 141 | reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG; |
| 142 | else |
| 143 | reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG; |
| 144 | |
| 145 | dsaf_write_sub(dsaf_dev, reg_addr, reg_val); |
| 146 | } |
| 147 | |
| 148 | void hns_dsaf_xge_core_srst_by_port(struct dsaf_device *dsaf_dev, |
| 149 | u32 port, u32 val) |
| 150 | { |
| 151 | u32 reg_val = 0; |
| 152 | u32 reg_addr; |
| 153 | |
| 154 | if (port >= DSAF_XGE_NUM) |
| 155 | return; |
| 156 | |
| 157 | reg_val |= XGMAC_TRX_CORE_SRST_M |
| 158 | << dsaf_dev->mac_cb[port]->port_rst_off; |
| 159 | |
| 160 | if (val == 0) |
| 161 | reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG; |
| 162 | else |
| 163 | reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG; |
| 164 | |
| 165 | dsaf_write_sub(dsaf_dev, reg_addr, reg_val); |
| 166 | } |
| 167 | |
| 168 | void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val) |
| 169 | { |
| 170 | u32 reg_val_1; |
| 171 | u32 reg_val_2; |
| 172 | u32 port_rst_off; |
| 173 | |
| 174 | if (port >= DSAF_GE_NUM) |
| 175 | return; |
| 176 | |
| 177 | if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) { |
| 178 | reg_val_1 = 0x1 << port; |
| 179 | port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; |
| 180 | /* there is difference between V1 and V2 in register.*/ |
| 181 | if (AE_IS_VER1(dsaf_dev->dsaf_ver)) |
| 182 | reg_val_2 = 0x1041041 << port_rst_off; |
| 183 | else |
| 184 | reg_val_2 = 0x2082082 << port_rst_off; |
| 185 | |
| 186 | if (val == 0) { |
| 187 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG, |
| 188 | reg_val_1); |
| 189 | |
| 190 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG, |
| 191 | reg_val_2); |
| 192 | } else { |
| 193 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG, |
| 194 | reg_val_2); |
| 195 | |
| 196 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG, |
| 197 | reg_val_1); |
| 198 | } |
| 199 | } else { |
| 200 | reg_val_1 = 0x15540 << dsaf_dev->reset_offset; |
| 201 | reg_val_2 = 0x100 << dsaf_dev->reset_offset; |
| 202 | |
| 203 | if (val == 0) { |
| 204 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG, |
| 205 | reg_val_1); |
| 206 | |
| 207 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG, |
| 208 | reg_val_2); |
| 209 | } else { |
| 210 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG, |
| 211 | reg_val_1); |
| 212 | |
| 213 | dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG, |
| 214 | reg_val_2); |
| 215 | } |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val) |
| 220 | { |
| 221 | u32 reg_val = 0; |
| 222 | u32 reg_addr; |
| 223 | |
| 224 | reg_val |= RESET_REQ_OR_DREQ << dsaf_dev->mac_cb[port]->port_rst_off; |
| 225 | |
| 226 | if (val == 0) |
| 227 | reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG; |
| 228 | else |
| 229 | reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG; |
| 230 | |
| 231 | dsaf_write_sub(dsaf_dev, reg_addr, reg_val); |
| 232 | } |
| 233 | |
| 234 | void hns_ppe_com_srst(struct ppe_common_cb *ppe_common, u32 val) |
| 235 | { |
| 236 | struct dsaf_device *dsaf_dev = ppe_common->dsaf_dev; |
| 237 | u32 reg_val; |
| 238 | u32 reg_addr; |
| 239 | |
| 240 | if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) { |
| 241 | reg_val = RESET_REQ_OR_DREQ; |
| 242 | if (val == 0) |
| 243 | reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG; |
| 244 | else |
| 245 | reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG; |
| 246 | |
| 247 | } else { |
| 248 | reg_val = 0x100 << dsaf_dev->reset_offset; |
| 249 | |
| 250 | if (val == 0) |
| 251 | reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG; |
| 252 | else |
| 253 | reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG; |
| 254 | } |
| 255 | |
| 256 | dsaf_write_sub(dsaf_dev, reg_addr, reg_val); |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * hns_mac_get_sds_mode - get phy ifterface form serdes mode |
| 261 | * @mac_cb: mac control block |
| 262 | * retuen phy interface |
| 263 | */ |
| 264 | phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb) |
| 265 | { |
| 266 | u32 mode; |
| 267 | u32 reg; |
| 268 | bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver); |
| 269 | int mac_id = mac_cb->mac_id; |
| 270 | phy_interface_t phy_if; |
| 271 | |
| 272 | if (is_ver1) { |
| 273 | if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) |
| 274 | return PHY_INTERFACE_MODE_SGMII; |
| 275 | |
| 276 | if (mac_id >= 0 && mac_id <= 3) |
| 277 | reg = HNS_MAC_HILINK4_REG; |
| 278 | else |
| 279 | reg = HNS_MAC_HILINK3_REG; |
| 280 | } else{ |
| 281 | if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3) |
| 282 | reg = HNS_MAC_HILINK4V2_REG; |
| 283 | else |
| 284 | reg = HNS_MAC_HILINK3V2_REG; |
| 285 | } |
| 286 | |
| 287 | mode = dsaf_read_sub(mac_cb->dsaf_dev, reg); |
| 288 | if (dsaf_get_bit(mode, mac_cb->port_mode_off)) |
| 289 | phy_if = PHY_INTERFACE_MODE_XGMII; |
| 290 | else |
| 291 | phy_if = PHY_INTERFACE_MODE_SGMII; |
| 292 | |
| 293 | return phy_if; |
| 294 | } |
| 295 | |
| 296 | int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt) |
| 297 | { |
| 298 | if (!mac_cb->cpld_ctrl) |
| 299 | return -ENODEV; |
| 300 | |
| 301 | *sfp_prsnt = !dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg |
| 302 | + MAC_SFP_PORT_OFFSET); |
| 303 | |
| 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * hns_mac_config_sds_loopback - set loop back for serdes |
| 309 | * @mac_cb: mac control block |
| 310 | * retuen 0 == success |
| 311 | */ |
| 312 | int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, u8 en) |
| 313 | { |
| 314 | /* port 0-3 hilink4 base is serdes_vaddr + 0x00280000 |
| 315 | * port 4-7 hilink3 base is serdes_vaddr + 0x00200000 |
| 316 | */ |
| 317 | u8 *base_addr = (u8 *)mac_cb->serdes_vaddr + |
| 318 | (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000); |
| 319 | const u8 lane_id[] = { |
| 320 | 0, /* mac 0 -> lane 0 */ |
| 321 | 1, /* mac 1 -> lane 1 */ |
| 322 | 2, /* mac 2 -> lane 2 */ |
| 323 | 3, /* mac 3 -> lane 3 */ |
| 324 | 2, /* mac 4 -> lane 2 */ |
| 325 | 3, /* mac 5 -> lane 3 */ |
| 326 | 0, /* mac 6 -> lane 0 */ |
| 327 | 1 /* mac 7 -> lane 1 */ |
| 328 | }; |
| 329 | #define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2) |
| 330 | u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0); |
| 331 | |
| 332 | int sfp_prsnt; |
| 333 | int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt); |
| 334 | |
| 335 | if (!mac_cb->phy_node) { |
| 336 | if (ret) |
| 337 | pr_info("please confirm sfp is present or not\n"); |
| 338 | else |
| 339 | if (!sfp_prsnt) |
| 340 | pr_info("no sfp in this eth\n"); |
| 341 | } |
| 342 | |
| 343 | if (mac_cb->serdes_ctrl) { |
| 344 | u32 origin = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset); |
| 345 | |
| 346 | dsaf_set_field(origin, 1ull << 10, 10, !!en); |
| 347 | dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin); |
| 348 | } else { |
| 349 | dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, !!en); |
| 350 | } |
| 351 | |
| 352 | return 0; |
| 353 | } |