1 // SPDX-License-Identifier: (GPL-2.0 OR MIT) 2 /* 3 * Driver for Microsemi VSC85xx PHYs 4 * 5 * Author: Nagaraju Lakkaraju 6 * License: Dual MIT/GPL 7 * Copyright (c) 2016 Microsemi Corporation 8 */ 9 10 #include <linux/firmware.h> 11 #include <linux/jiffies.h> 12 #include <linux/kernel.h> 13 #include <linux/module.h> 14 #include <linux/mdio.h> 15 #include <linux/mii.h> 16 #include <linux/phy.h> 17 #include <linux/of.h> 18 #include <linux/netdevice.h> 19 #include <dt-bindings/net/mscc-phy-vsc8531.h> 20 #include "mscc_serdes.h" 21 #include "mscc.h" 22 23 static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = { 24 { 25 .string = "phy_receive_errors", 26 .reg = MSCC_PHY_ERR_RX_CNT, 27 .page = MSCC_PHY_PAGE_STANDARD, 28 .mask = ERR_CNT_MASK, 29 }, { 30 .string = "phy_false_carrier", 31 .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT, 32 .page = MSCC_PHY_PAGE_STANDARD, 33 .mask = ERR_CNT_MASK, 34 }, { 35 .string = "phy_cu_media_link_disconnect", 36 .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT, 37 .page = MSCC_PHY_PAGE_STANDARD, 38 .mask = ERR_CNT_MASK, 39 }, { 40 .string = "phy_cu_media_crc_good_count", 41 .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT, 42 .page = MSCC_PHY_PAGE_EXTENDED, 43 .mask = VALID_CRC_CNT_CRC_MASK, 44 }, { 45 .string = "phy_cu_media_crc_error_count", 46 .reg = MSCC_PHY_EXT_PHY_CNTL_4, 47 .page = MSCC_PHY_PAGE_EXTENDED, 48 .mask = ERR_CNT_MASK, 49 }, 50 }; 51 52 static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = { 53 { 54 .string = "phy_receive_errors", 55 .reg = MSCC_PHY_ERR_RX_CNT, 56 .page = MSCC_PHY_PAGE_STANDARD, 57 .mask = ERR_CNT_MASK, 58 }, { 59 .string = "phy_false_carrier", 60 .reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT, 61 .page = MSCC_PHY_PAGE_STANDARD, 62 .mask = ERR_CNT_MASK, 63 }, { 64 .string = "phy_cu_media_link_disconnect", 65 .reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT, 66 .page = MSCC_PHY_PAGE_STANDARD, 67 .mask = ERR_CNT_MASK, 68 }, { 69 .string = "phy_cu_media_crc_good_count", 70 .reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT, 71 .page = MSCC_PHY_PAGE_EXTENDED, 72 .mask = VALID_CRC_CNT_CRC_MASK, 73 }, { 74 .string = "phy_cu_media_crc_error_count", 75 .reg = MSCC_PHY_EXT_PHY_CNTL_4, 76 .page = MSCC_PHY_PAGE_EXTENDED, 77 .mask = ERR_CNT_MASK, 78 }, { 79 .string = "phy_serdes_tx_good_pkt_count", 80 .reg = MSCC_PHY_SERDES_TX_VALID_CNT, 81 .page = MSCC_PHY_PAGE_EXTENDED_3, 82 .mask = VALID_CRC_CNT_CRC_MASK, 83 }, { 84 .string = "phy_serdes_tx_bad_crc_count", 85 .reg = MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 86 .page = MSCC_PHY_PAGE_EXTENDED_3, 87 .mask = ERR_CNT_MASK, 88 }, { 89 .string = "phy_serdes_rx_good_pkt_count", 90 .reg = MSCC_PHY_SERDES_RX_VALID_CNT, 91 .page = MSCC_PHY_PAGE_EXTENDED_3, 92 .mask = VALID_CRC_CNT_CRC_MASK, 93 }, { 94 .string = "phy_serdes_rx_bad_crc_count", 95 .reg = MSCC_PHY_SERDES_RX_CRC_ERR_CNT, 96 .page = MSCC_PHY_PAGE_EXTENDED_3, 97 .mask = ERR_CNT_MASK, 98 }, 99 }; 100 101 #if IS_ENABLED(CONFIG_OF_MDIO) 102 static const struct vsc8531_edge_rate_table edge_table[] = { 103 {MSCC_VDDMAC_3300, { 0, 2, 4, 7, 10, 17, 29, 53} }, 104 {MSCC_VDDMAC_2500, { 0, 3, 6, 10, 14, 23, 37, 63} }, 105 {MSCC_VDDMAC_1800, { 0, 5, 9, 16, 23, 35, 52, 76} }, 106 {MSCC_VDDMAC_1500, { 0, 6, 14, 21, 29, 42, 58, 77} }, 107 }; 108 #endif 109 110 static int vsc85xx_phy_read_page(struct phy_device *phydev) 111 { 112 return __phy_read(phydev, MSCC_EXT_PAGE_ACCESS); 113 } 114 115 static int vsc85xx_phy_write_page(struct phy_device *phydev, int page) 116 { 117 return __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, page); 118 } 119 120 static int vsc85xx_get_sset_count(struct phy_device *phydev) 121 { 122 struct vsc8531_private *priv = phydev->priv; 123 124 if (!priv) 125 return 0; 126 127 return priv->nstats; 128 } 129 130 static void vsc85xx_get_strings(struct phy_device *phydev, u8 *data) 131 { 132 struct vsc8531_private *priv = phydev->priv; 133 int i; 134 135 if (!priv) 136 return; 137 138 for (i = 0; i < priv->nstats; i++) 139 strscpy(data + i * ETH_GSTRING_LEN, priv->hw_stats[i].string, 140 ETH_GSTRING_LEN); 141 } 142 143 static u64 vsc85xx_get_stat(struct phy_device *phydev, int i) 144 { 145 struct vsc8531_private *priv = phydev->priv; 146 int val; 147 148 val = phy_read_paged(phydev, priv->hw_stats[i].page, 149 priv->hw_stats[i].reg); 150 if (val < 0) 151 return U64_MAX; 152 153 val = val & priv->hw_stats[i].mask; 154 priv->stats[i] += val; 155 156 return priv->stats[i]; 157 } 158 159 static void vsc85xx_get_stats(struct phy_device *phydev, 160 struct ethtool_stats *stats, u64 *data) 161 { 162 struct vsc8531_private *priv = phydev->priv; 163 int i; 164 165 if (!priv) 166 return; 167 168 for (i = 0; i < priv->nstats; i++) 169 data[i] = vsc85xx_get_stat(phydev, i); 170 } 171 172 static int vsc85xx_led_cntl_set(struct phy_device *phydev, 173 u8 led_num, 174 u8 mode) 175 { 176 int rc; 177 u16 reg_val; 178 179 mutex_lock(&phydev->lock); 180 reg_val = phy_read(phydev, MSCC_PHY_LED_MODE_SEL); 181 reg_val &= ~LED_MODE_SEL_MASK(led_num); 182 reg_val |= LED_MODE_SEL(led_num, (u16)mode); 183 rc = phy_write(phydev, MSCC_PHY_LED_MODE_SEL, reg_val); 184 mutex_unlock(&phydev->lock); 185 186 return rc; 187 } 188 189 static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix) 190 { 191 u16 reg_val; 192 193 reg_val = phy_read(phydev, MSCC_PHY_DEV_AUX_CNTL); 194 if (reg_val & HP_AUTO_MDIX_X_OVER_IND_MASK) 195 *mdix = ETH_TP_MDI_X; 196 else 197 *mdix = ETH_TP_MDI; 198 199 return 0; 200 } 201 202 static int vsc85xx_mdix_set(struct phy_device *phydev, u8 mdix) 203 { 204 int rc; 205 u16 reg_val; 206 207 reg_val = phy_read(phydev, MSCC_PHY_BYPASS_CONTROL); 208 if (mdix == ETH_TP_MDI || mdix == ETH_TP_MDI_X) { 209 reg_val |= (DISABLE_PAIR_SWAP_CORR_MASK | 210 DISABLE_POLARITY_CORR_MASK | 211 DISABLE_HP_AUTO_MDIX_MASK); 212 } else { 213 reg_val &= ~(DISABLE_PAIR_SWAP_CORR_MASK | 214 DISABLE_POLARITY_CORR_MASK | 215 DISABLE_HP_AUTO_MDIX_MASK); 216 } 217 rc = phy_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg_val); 218 if (rc) 219 return rc; 220 221 reg_val = 0; 222 223 if (mdix == ETH_TP_MDI) 224 reg_val = FORCE_MDI_CROSSOVER_MDI; 225 else if (mdix == ETH_TP_MDI_X) 226 reg_val = FORCE_MDI_CROSSOVER_MDIX; 227 228 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED, 229 MSCC_PHY_EXT_MODE_CNTL, FORCE_MDI_CROSSOVER_MASK, 230 reg_val); 231 if (rc < 0) 232 return rc; 233 234 return genphy_restart_aneg(phydev); 235 } 236 237 static int vsc85xx_downshift_get(struct phy_device *phydev, u8 *count) 238 { 239 int reg_val; 240 241 reg_val = phy_read_paged(phydev, MSCC_PHY_PAGE_EXTENDED, 242 MSCC_PHY_ACTIPHY_CNTL); 243 if (reg_val < 0) 244 return reg_val; 245 246 reg_val &= DOWNSHIFT_CNTL_MASK; 247 if (!(reg_val & DOWNSHIFT_EN)) 248 *count = DOWNSHIFT_DEV_DISABLE; 249 else 250 *count = ((reg_val & ~DOWNSHIFT_EN) >> DOWNSHIFT_CNTL_POS) + 2; 251 252 return 0; 253 } 254 255 static int vsc85xx_downshift_set(struct phy_device *phydev, u8 count) 256 { 257 if (count == DOWNSHIFT_DEV_DEFAULT_COUNT) { 258 /* Default downshift count 3 (i.e. Bit3:2 = 0b01) */ 259 count = ((1 << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN); 260 } else if (count > DOWNSHIFT_COUNT_MAX || count == 1) { 261 phydev_err(phydev, "Downshift count should be 2,3,4 or 5\n"); 262 return -ERANGE; 263 } else if (count) { 264 /* Downshift count is either 2,3,4 or 5 */ 265 count = (((count - 2) << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN); 266 } 267 268 return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED, 269 MSCC_PHY_ACTIPHY_CNTL, DOWNSHIFT_CNTL_MASK, 270 count); 271 } 272 273 static int vsc85xx_wol_set(struct phy_device *phydev, 274 struct ethtool_wolinfo *wol) 275 { 276 const u8 *mac_addr = phydev->attached_dev->dev_addr; 277 int rc; 278 u16 reg_val; 279 u8 i; 280 u16 pwd[3] = {0, 0, 0}; 281 struct ethtool_wolinfo *wol_conf = wol; 282 283 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2); 284 if (rc < 0) 285 return phy_restore_page(phydev, rc, rc); 286 287 if (wol->wolopts & WAKE_MAGIC) { 288 /* Store the device address for the magic packet */ 289 for (i = 0; i < ARRAY_SIZE(pwd); i++) 290 pwd[i] = mac_addr[5 - (i * 2 + 1)] << 8 | 291 mac_addr[5 - i * 2]; 292 __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, pwd[0]); 293 __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, pwd[1]); 294 __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, pwd[2]); 295 } else { 296 __phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, 0); 297 __phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, 0); 298 __phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, 0); 299 } 300 301 if (wol_conf->wolopts & WAKE_MAGICSECURE) { 302 for (i = 0; i < ARRAY_SIZE(pwd); i++) 303 pwd[i] = wol_conf->sopass[5 - (i * 2 + 1)] << 8 | 304 wol_conf->sopass[5 - i * 2]; 305 __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, pwd[0]); 306 __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, pwd[1]); 307 __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, pwd[2]); 308 } else { 309 __phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, 0); 310 __phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, 0); 311 __phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, 0); 312 } 313 314 reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL); 315 if (wol_conf->wolopts & WAKE_MAGICSECURE) 316 reg_val |= SECURE_ON_ENABLE; 317 else 318 reg_val &= ~SECURE_ON_ENABLE; 319 __phy_write(phydev, MSCC_PHY_WOL_MAC_CONTROL, reg_val); 320 321 rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc); 322 if (rc < 0) 323 return rc; 324 325 if (wol->wolopts & WAKE_MAGIC) { 326 /* Enable the WOL interrupt */ 327 reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK); 328 reg_val |= MII_VSC85XX_INT_MASK_WOL; 329 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val); 330 if (rc) 331 return rc; 332 } else { 333 /* Disable the WOL interrupt */ 334 reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK); 335 reg_val &= (~MII_VSC85XX_INT_MASK_WOL); 336 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val); 337 if (rc) 338 return rc; 339 } 340 /* Clear WOL iterrupt status */ 341 reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS); 342 343 return 0; 344 } 345 346 static void vsc85xx_wol_get(struct phy_device *phydev, 347 struct ethtool_wolinfo *wol) 348 { 349 int rc; 350 u16 reg_val; 351 u8 i; 352 u16 pwd[3] = {0, 0, 0}; 353 struct ethtool_wolinfo *wol_conf = wol; 354 355 rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2); 356 if (rc < 0) 357 goto out_restore_page; 358 359 reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL); 360 if (reg_val & SECURE_ON_ENABLE) 361 wol_conf->wolopts |= WAKE_MAGICSECURE; 362 if (wol_conf->wolopts & WAKE_MAGICSECURE) { 363 pwd[0] = __phy_read(phydev, MSCC_PHY_WOL_LOWER_PASSWD); 364 pwd[1] = __phy_read(phydev, MSCC_PHY_WOL_MID_PASSWD); 365 pwd[2] = __phy_read(phydev, MSCC_PHY_WOL_UPPER_PASSWD); 366 for (i = 0; i < ARRAY_SIZE(pwd); i++) { 367 wol_conf->sopass[5 - i * 2] = pwd[i] & 0x00ff; 368 wol_conf->sopass[5 - (i * 2 + 1)] = (pwd[i] & 0xff00) 369 >> 8; 370 } 371 } 372 373 out_restore_page: 374 phy_restore_page(phydev, rc, rc > 0 ? 0 : rc); 375 } 376 377 #if IS_ENABLED(CONFIG_OF_MDIO) 378 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev) 379 { 380 u32 vdd, sd; 381 int i, j; 382 struct device *dev = &phydev->mdio.dev; 383 struct device_node *of_node = dev->of_node; 384 u8 sd_array_size = ARRAY_SIZE(edge_table[0].slowdown); 385 386 if (!of_node) 387 return -ENODEV; 388 389 if (of_property_read_u32(of_node, "vsc8531,vddmac", &vdd)) 390 vdd = MSCC_VDDMAC_3300; 391 392 if (of_property_read_u32(of_node, "vsc8531,edge-slowdown", &sd)) 393 sd = 0; 394 395 for (i = 0; i < ARRAY_SIZE(edge_table); i++) 396 if (edge_table[i].vddmac == vdd) 397 for (j = 0; j < sd_array_size; j++) 398 if (edge_table[i].slowdown[j] == sd) 399 return (sd_array_size - j - 1); 400 401 return -EINVAL; 402 } 403 404 static int vsc85xx_dt_led_mode_get(struct phy_device *phydev, 405 char *led, 406 u32 default_mode) 407 { 408 struct vsc8531_private *priv = phydev->priv; 409 struct device *dev = &phydev->mdio.dev; 410 struct device_node *of_node = dev->of_node; 411 u32 led_mode; 412 int err; 413 414 if (!of_node) 415 return -ENODEV; 416 417 led_mode = default_mode; 418 err = of_property_read_u32(of_node, led, &led_mode); 419 if (!err && !(BIT(led_mode) & priv->supp_led_modes)) { 420 phydev_err(phydev, "DT %s invalid\n", led); 421 return -EINVAL; 422 } 423 424 return led_mode; 425 } 426 427 #else 428 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev) 429 { 430 return 0; 431 } 432 433 static int vsc85xx_dt_led_mode_get(struct phy_device *phydev, 434 char *led, 435 u8 default_mode) 436 { 437 return default_mode; 438 } 439 #endif /* CONFIG_OF_MDIO */ 440 441 static int vsc85xx_dt_led_modes_get(struct phy_device *phydev, 442 u32 *default_mode) 443 { 444 struct vsc8531_private *priv = phydev->priv; 445 char led_dt_prop[28]; 446 int i, ret; 447 448 for (i = 0; i < priv->nleds; i++) { 449 ret = sprintf(led_dt_prop, "vsc8531,led-%d-mode", i); 450 if (ret < 0) 451 return ret; 452 453 ret = vsc85xx_dt_led_mode_get(phydev, led_dt_prop, 454 default_mode[i]); 455 if (ret < 0) 456 return ret; 457 priv->leds_mode[i] = ret; 458 } 459 460 return 0; 461 } 462 463 static int vsc85xx_edge_rate_cntl_set(struct phy_device *phydev, u8 edge_rate) 464 { 465 int rc; 466 467 mutex_lock(&phydev->lock); 468 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2, 469 MSCC_PHY_WOL_MAC_CONTROL, EDGE_RATE_CNTL_MASK, 470 edge_rate << EDGE_RATE_CNTL_POS); 471 mutex_unlock(&phydev->lock); 472 473 return rc; 474 } 475 476 static int vsc85xx_mac_if_set(struct phy_device *phydev, 477 phy_interface_t interface) 478 { 479 int rc; 480 u16 reg_val; 481 482 mutex_lock(&phydev->lock); 483 reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1); 484 reg_val &= ~(MAC_IF_SELECTION_MASK); 485 switch (interface) { 486 case PHY_INTERFACE_MODE_RGMII_TXID: 487 case PHY_INTERFACE_MODE_RGMII_RXID: 488 case PHY_INTERFACE_MODE_RGMII_ID: 489 case PHY_INTERFACE_MODE_RGMII: 490 reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS); 491 break; 492 case PHY_INTERFACE_MODE_RMII: 493 reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS); 494 break; 495 case PHY_INTERFACE_MODE_MII: 496 case PHY_INTERFACE_MODE_GMII: 497 reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS); 498 break; 499 default: 500 rc = -EINVAL; 501 goto out_unlock; 502 } 503 rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val); 504 if (rc) 505 goto out_unlock; 506 507 rc = genphy_soft_reset(phydev); 508 509 out_unlock: 510 mutex_unlock(&phydev->lock); 511 512 return rc; 513 } 514 515 /* Set the RGMII RX and TX clock skews individually, according to the PHY 516 * interface type, to: 517 * * 0.2 ns (their default, and lowest, hardware value) if delays should 518 * not be enabled 519 * * 2.0 ns (which causes the data to be sampled at exactly half way between 520 * clock transitions at 1000 Mbps) if delays should be enabled 521 */ 522 static int vsc85xx_rgmii_set_skews(struct phy_device *phydev, u32 rgmii_cntl, 523 u16 rgmii_rx_delay_mask, 524 u16 rgmii_tx_delay_mask) 525 { 526 u16 rgmii_rx_delay_pos = ffs(rgmii_rx_delay_mask) - 1; 527 u16 rgmii_tx_delay_pos = ffs(rgmii_tx_delay_mask) - 1; 528 u16 reg_val = 0; 529 int rc; 530 531 mutex_lock(&phydev->lock); 532 533 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID || 534 phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) 535 reg_val |= RGMII_CLK_DELAY_2_0_NS << rgmii_rx_delay_pos; 536 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID || 537 phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) 538 reg_val |= RGMII_CLK_DELAY_2_0_NS << rgmii_tx_delay_pos; 539 540 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2, 541 rgmii_cntl, 542 rgmii_rx_delay_mask | rgmii_tx_delay_mask, 543 reg_val); 544 545 mutex_unlock(&phydev->lock); 546 547 return rc; 548 } 549 550 static int vsc85xx_default_config(struct phy_device *phydev) 551 { 552 int rc; 553 554 phydev->mdix_ctrl = ETH_TP_MDI_AUTO; 555 556 if (phy_interface_mode_is_rgmii(phydev->interface)) { 557 rc = vsc85xx_rgmii_set_skews(phydev, VSC8502_RGMII_CNTL, 558 VSC8502_RGMII_RX_DELAY_MASK, 559 VSC8502_RGMII_TX_DELAY_MASK); 560 if (rc) 561 return rc; 562 } 563 564 return 0; 565 } 566 567 static int vsc85xx_get_tunable(struct phy_device *phydev, 568 struct ethtool_tunable *tuna, void *data) 569 { 570 switch (tuna->id) { 571 case ETHTOOL_PHY_DOWNSHIFT: 572 return vsc85xx_downshift_get(phydev, (u8 *)data); 573 default: 574 return -EINVAL; 575 } 576 } 577 578 static int vsc85xx_set_tunable(struct phy_device *phydev, 579 struct ethtool_tunable *tuna, 580 const void *data) 581 { 582 switch (tuna->id) { 583 case ETHTOOL_PHY_DOWNSHIFT: 584 return vsc85xx_downshift_set(phydev, *(u8 *)data); 585 default: 586 return -EINVAL; 587 } 588 } 589 590 /* mdiobus lock should be locked when using this function */ 591 static void vsc85xx_tr_write(struct phy_device *phydev, u16 addr, u32 val) 592 { 593 __phy_write(phydev, MSCC_PHY_TR_MSB, val >> 16); 594 __phy_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0)); 595 __phy_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr)); 596 } 597 598 static int vsc8531_pre_init_seq_set(struct phy_device *phydev) 599 { 600 int rc; 601 static const struct reg_val init_seq[] = { 602 {0x0f90, 0x00688980}, 603 {0x0696, 0x00000003}, 604 {0x07fa, 0x0050100f}, 605 {0x1686, 0x00000004}, 606 }; 607 unsigned int i; 608 int oldpage; 609 610 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_STANDARD, 611 MSCC_PHY_EXT_CNTL_STATUS, SMI_BROADCAST_WR_EN, 612 SMI_BROADCAST_WR_EN); 613 if (rc < 0) 614 return rc; 615 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST, 616 MSCC_PHY_TEST_PAGE_24, 0, 0x0400); 617 if (rc < 0) 618 return rc; 619 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST, 620 MSCC_PHY_TEST_PAGE_5, 0x0a00, 0x0e00); 621 if (rc < 0) 622 return rc; 623 rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST, 624 MSCC_PHY_TEST_PAGE_8, TR_CLK_DISABLE, TR_CLK_DISABLE); 625 if (rc < 0) 626 return rc; 627 628 mutex_lock(&phydev->lock); 629 oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR); 630 if (oldpage < 0) 631 goto out_unlock; 632 633 for (i = 0; i < ARRAY_SIZE(init_seq); i++) 634 vsc85xx_tr_write(phydev, init_seq[i].reg, init_seq[i].val); 635 636 out_unlock: 637 oldpage = phy_restore_page(phydev, oldpage, oldpage); 638 mutex_unlock(&phydev->lock); 639 640 return oldpage; 641 } 642 643 static int vsc85xx_eee_init_seq_set(struct phy_device *phydev) 644 { 645 static const struct reg_val init_eee[] = { 646 {0x0f82, 0x0012b00a}, 647 {0x1686, 0x00000004}, 648 {0x168c, 0x00d2c46f}, 649 {0x17a2, 0x00000620}, 650 {0x16a0, 0x00eeffdd}, 651 {0x16a6, 0x00071448}, 652 {0x16a4, 0x0013132f}, 653 {0x16a8, 0x00000000}, 654 {0x0ffc, 0x00c0a028}, 655 {0x0fe8, 0x0091b06c}, 656 {0x0fea, 0x00041600}, 657 {0x0f80, 0x00000af4}, 658 {0x0fec, 0x00901809}, 659 {0x0fee, 0x0000a6a1}, 660 {0x0ffe, 0x00b01007}, 661 {0x16b0, 0x00eeff00}, 662 {0x16b2, 0x00007000}, 663 {0x16b4, 0x00000814}, 664 }; 665 unsigned int i; 666 int oldpage; 667 668 mutex_lock(&phydev->lock); 669 oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR); 670 if (oldpage < 0) 671 goto out_unlock; 672 673 for (i = 0; i < ARRAY_SIZE(init_eee); i++) 674 vsc85xx_tr_write(phydev, init_eee[i].reg, init_eee[i].val); 675 676 out_unlock: 677 oldpage = phy_restore_page(phydev, oldpage, oldpage); 678 mutex_unlock(&phydev->lock); 679 680 return oldpage; 681 } 682 683 /* phydev->bus->mdio_lock should be locked when using this function */ 684 int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val) 685 { 686 if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) { 687 dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n"); 688 dump_stack(); 689 } 690 691 return __phy_package_write(phydev, regnum, val); 692 } 693 694 /* phydev->bus->mdio_lock should be locked when using this function */ 695 int phy_base_read(struct phy_device *phydev, u32 regnum) 696 { 697 if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) { 698 dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n"); 699 dump_stack(); 700 } 701 702 return __phy_package_read(phydev, regnum); 703 } 704 705 u32 vsc85xx_csr_read(struct phy_device *phydev, 706 enum csr_target target, u32 reg) 707 { 708 unsigned long deadline; 709 u32 val, val_l, val_h; 710 711 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL); 712 713 /* CSR registers are grouped under different Target IDs. 714 * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and 715 * MSCC_EXT_PAGE_CSR_CNTL_19 registers. 716 * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20 717 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19. 718 */ 719 720 /* Setup the Target ID */ 721 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20, 722 MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2)); 723 724 if ((target >> 2 == 0x1) || (target >> 2 == 0x3)) 725 /* non-MACsec access */ 726 target &= 0x3; 727 else 728 target = 0; 729 730 /* Trigger CSR Action - Read into the CSR's */ 731 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19, 732 MSCC_PHY_CSR_CNTL_19_CMD | MSCC_PHY_CSR_CNTL_19_READ | 733 MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) | 734 MSCC_PHY_CSR_CNTL_19_TARGET(target)); 735 736 /* Wait for register access*/ 737 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); 738 do { 739 usleep_range(500, 1000); 740 val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19); 741 } while (time_before(jiffies, deadline) && 742 !(val & MSCC_PHY_CSR_CNTL_19_CMD)); 743 744 if (!(val & MSCC_PHY_CSR_CNTL_19_CMD)) 745 return 0xffffffff; 746 747 /* Read the Least Significant Word (LSW) (17) */ 748 val_l = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_17); 749 750 /* Read the Most Significant Word (MSW) (18) */ 751 val_h = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_18); 752 753 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 754 MSCC_PHY_PAGE_STANDARD); 755 756 return (val_h << 16) | val_l; 757 } 758 759 int vsc85xx_csr_write(struct phy_device *phydev, 760 enum csr_target target, u32 reg, u32 val) 761 { 762 unsigned long deadline; 763 764 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL); 765 766 /* CSR registers are grouped under different Target IDs. 767 * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and 768 * MSCC_EXT_PAGE_CSR_CNTL_19 registers. 769 * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20 770 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19. 771 */ 772 773 /* Setup the Target ID */ 774 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20, 775 MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2)); 776 777 /* Write the Least Significant Word (LSW) (17) */ 778 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_17, (u16)val); 779 780 /* Write the Most Significant Word (MSW) (18) */ 781 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_18, (u16)(val >> 16)); 782 783 if ((target >> 2 == 0x1) || (target >> 2 == 0x3)) 784 /* non-MACsec access */ 785 target &= 0x3; 786 else 787 target = 0; 788 789 /* Trigger CSR Action - Write into the CSR's */ 790 phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19, 791 MSCC_PHY_CSR_CNTL_19_CMD | 792 MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) | 793 MSCC_PHY_CSR_CNTL_19_TARGET(target)); 794 795 /* Wait for register access */ 796 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); 797 do { 798 usleep_range(500, 1000); 799 val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19); 800 } while (time_before(jiffies, deadline) && 801 !(val & MSCC_PHY_CSR_CNTL_19_CMD)); 802 803 if (!(val & MSCC_PHY_CSR_CNTL_19_CMD)) 804 return -ETIMEDOUT; 805 806 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 807 MSCC_PHY_PAGE_STANDARD); 808 809 return 0; 810 } 811 812 /* bus->mdio_lock should be locked when using this function */ 813 static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val) 814 { 815 phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16); 816 phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0)); 817 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr)); 818 } 819 820 /* bus->mdio_lock should be locked when using this function */ 821 int vsc8584_cmd(struct phy_device *phydev, u16 val) 822 { 823 unsigned long deadline; 824 u16 reg_val; 825 826 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 827 MSCC_PHY_PAGE_EXTENDED_GPIO); 828 829 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val); 830 831 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); 832 do { 833 reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD); 834 } while (time_before(jiffies, deadline) && 835 (reg_val & PROC_CMD_NCOMPLETED) && 836 !(reg_val & PROC_CMD_FAILED)); 837 838 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 839 840 if (reg_val & PROC_CMD_FAILED) 841 return -EIO; 842 843 if (reg_val & PROC_CMD_NCOMPLETED) 844 return -ETIMEDOUT; 845 846 return 0; 847 } 848 849 /* bus->mdio_lock should be locked when using this function */ 850 static int vsc8584_micro_deassert_reset(struct phy_device *phydev, 851 bool patch_en) 852 { 853 u32 enable, release; 854 855 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 856 MSCC_PHY_PAGE_EXTENDED_GPIO); 857 858 enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN; 859 release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN | 860 MICRO_CLK_EN; 861 862 if (patch_en) { 863 enable |= MICRO_PATCH_EN; 864 release |= MICRO_PATCH_EN; 865 866 /* Clear all patches */ 867 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM); 868 } 869 870 /* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock 871 * override and addr. auto-incr; operate at 125 MHz 872 */ 873 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable); 874 /* Release 8051 Micro SW reset */ 875 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release); 876 877 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 878 879 return 0; 880 } 881 882 /* bus->mdio_lock should be locked when using this function */ 883 static int vsc8584_micro_assert_reset(struct phy_device *phydev) 884 { 885 int ret; 886 u16 reg; 887 888 ret = vsc8584_cmd(phydev, PROC_CMD_NOP); 889 if (ret) 890 return ret; 891 892 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 893 MSCC_PHY_PAGE_EXTENDED_GPIO); 894 895 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 896 reg &= ~EN_PATCH_RAM_TRAP_ADDR(4); 897 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); 898 899 phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(4), 0x005b); 900 phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(4), 0x005b); 901 902 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 903 reg |= EN_PATCH_RAM_TRAP_ADDR(4); 904 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); 905 906 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NOP); 907 908 reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS); 909 reg &= ~MICRO_NSOFT_RESET; 910 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, reg); 911 912 phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_MCB_ACCESS_MAC_CONF | 913 PROC_CMD_SGMII_PORT(0) | PROC_CMD_NO_MAC_CONF | 914 PROC_CMD_READ); 915 916 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 917 reg &= ~EN_PATCH_RAM_TRAP_ADDR(4); 918 phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); 919 920 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 921 922 return 0; 923 } 924 925 /* bus->mdio_lock should be locked when using this function */ 926 static int vsc8584_get_fw_crc(struct phy_device *phydev, u16 start, u16 size, 927 u16 *crc) 928 { 929 int ret; 930 931 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED); 932 933 phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_2, start); 934 phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_3, size); 935 936 /* Start Micro command */ 937 ret = vsc8584_cmd(phydev, PROC_CMD_CRC16); 938 if (ret) 939 goto out; 940 941 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED); 942 943 *crc = phy_base_read(phydev, MSCC_PHY_VERIPHY_CNTL_2); 944 945 out: 946 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 947 948 return ret; 949 } 950 951 /* bus->mdio_lock should be locked when using this function */ 952 static int vsc8584_patch_fw(struct phy_device *phydev, 953 const struct firmware *fw) 954 { 955 int i, ret; 956 957 ret = vsc8584_micro_assert_reset(phydev); 958 if (ret) { 959 dev_err(&phydev->mdio.dev, 960 "%s: failed to assert reset of micro\n", __func__); 961 return ret; 962 } 963 964 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 965 MSCC_PHY_PAGE_EXTENDED_GPIO); 966 967 /* Hold 8051 Micro in SW Reset, Enable auto incr address and patch clock 968 * Disable the 8051 Micro clock 969 */ 970 phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, RUN_FROM_INT_ROM | 971 AUTOINC_ADDR | PATCH_RAM_CLK | MICRO_CLK_EN | 972 MICRO_CLK_DIVIDE(2)); 973 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | INT_MEM_WRITE_EN | 974 INT_MEM_DATA(2)); 975 phy_base_write(phydev, MSCC_INT_MEM_ADDR, 0x0000); 976 977 for (i = 0; i < fw->size; i++) 978 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | 979 INT_MEM_WRITE_EN | fw->data[i]); 980 981 /* Clear internal memory access */ 982 phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM); 983 984 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 985 986 return 0; 987 } 988 989 /* bus->mdio_lock should be locked when using this function */ 990 static bool vsc8574_is_serdes_init(struct phy_device *phydev) 991 { 992 u16 reg; 993 bool ret; 994 995 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 996 MSCC_PHY_PAGE_EXTENDED_GPIO); 997 998 reg = phy_base_read(phydev, MSCC_TRAP_ROM_ADDR(1)); 999 if (reg != 0x3eb7) { 1000 ret = false; 1001 goto out; 1002 } 1003 1004 reg = phy_base_read(phydev, MSCC_PATCH_RAM_ADDR(1)); 1005 if (reg != 0x4012) { 1006 ret = false; 1007 goto out; 1008 } 1009 1010 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 1011 if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) { 1012 ret = false; 1013 goto out; 1014 } 1015 1016 reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS); 1017 if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN | 1018 MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) { 1019 ret = false; 1020 goto out; 1021 } 1022 1023 ret = true; 1024 out: 1025 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1026 1027 return ret; 1028 } 1029 1030 /* bus->mdio_lock should be locked when using this function */ 1031 static int vsc8574_config_pre_init(struct phy_device *phydev) 1032 { 1033 static const struct reg_val pre_init1[] = { 1034 {0x0fae, 0x000401bd}, 1035 {0x0fac, 0x000f000f}, 1036 {0x17a0, 0x00a0f147}, 1037 {0x0fe4, 0x00052f54}, 1038 {0x1792, 0x0027303d}, 1039 {0x07fe, 0x00000704}, 1040 {0x0fe0, 0x00060150}, 1041 {0x0f82, 0x0012b00a}, 1042 {0x0f80, 0x00000d74}, 1043 {0x02e0, 0x00000012}, 1044 {0x03a2, 0x00050208}, 1045 {0x03b2, 0x00009186}, 1046 {0x0fb0, 0x000e3700}, 1047 {0x1688, 0x00049f81}, 1048 {0x0fd2, 0x0000ffff}, 1049 {0x168a, 0x00039fa2}, 1050 {0x1690, 0x0020640b}, 1051 {0x0258, 0x00002220}, 1052 {0x025a, 0x00002a20}, 1053 {0x025c, 0x00003060}, 1054 {0x025e, 0x00003fa0}, 1055 {0x03a6, 0x0000e0f0}, 1056 {0x0f92, 0x00001489}, 1057 {0x16a2, 0x00007000}, 1058 {0x16a6, 0x00071448}, 1059 {0x16a0, 0x00eeffdd}, 1060 {0x0fe8, 0x0091b06c}, 1061 {0x0fea, 0x00041600}, 1062 {0x16b0, 0x00eeff00}, 1063 {0x16b2, 0x00007000}, 1064 {0x16b4, 0x00000814}, 1065 {0x0f90, 0x00688980}, 1066 {0x03a4, 0x0000d8f0}, 1067 {0x0fc0, 0x00000400}, 1068 {0x07fa, 0x0050100f}, 1069 {0x0796, 0x00000003}, 1070 {0x07f8, 0x00c3ff98}, 1071 {0x0fa4, 0x0018292a}, 1072 {0x168c, 0x00d2c46f}, 1073 {0x17a2, 0x00000620}, 1074 {0x16a4, 0x0013132f}, 1075 {0x16a8, 0x00000000}, 1076 {0x0ffc, 0x00c0a028}, 1077 {0x0fec, 0x00901c09}, 1078 {0x0fee, 0x0004a6a1}, 1079 {0x0ffe, 0x00b01807}, 1080 }; 1081 static const struct reg_val pre_init2[] = { 1082 {0x0486, 0x0008a518}, 1083 {0x0488, 0x006dc696}, 1084 {0x048a, 0x00000912}, 1085 {0x048e, 0x00000db6}, 1086 {0x049c, 0x00596596}, 1087 {0x049e, 0x00000514}, 1088 {0x04a2, 0x00410280}, 1089 {0x04a4, 0x00000000}, 1090 {0x04a6, 0x00000000}, 1091 {0x04a8, 0x00000000}, 1092 {0x04aa, 0x00000000}, 1093 {0x04ae, 0x007df7dd}, 1094 {0x04b0, 0x006d95d4}, 1095 {0x04b2, 0x00492410}, 1096 }; 1097 struct device *dev = &phydev->mdio.dev; 1098 const struct firmware *fw; 1099 unsigned int i; 1100 u16 crc, reg; 1101 bool serdes_init; 1102 int ret; 1103 1104 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1105 1106 /* all writes below are broadcasted to all PHYs in the same package */ 1107 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS); 1108 reg |= SMI_BROADCAST_WR_EN; 1109 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg); 1110 1111 phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0); 1112 1113 /* The below register writes are tweaking analog and electrical 1114 * configuration that were determined through characterization by PHY 1115 * engineers. These don't mean anything more than "these are the best 1116 * values". 1117 */ 1118 phy_base_write(phydev, MSCC_PHY_EXT_PHY_CNTL_2, 0x0040); 1119 1120 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); 1121 1122 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_20, 0x4320); 1123 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_24, 0x0c00); 1124 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_9, 0x18ca); 1125 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1b20); 1126 1127 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); 1128 reg |= TR_CLK_DISABLE; 1129 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); 1130 1131 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR); 1132 1133 for (i = 0; i < ARRAY_SIZE(pre_init1); i++) 1134 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val); 1135 1136 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2); 1137 1138 phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e); 1139 1140 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR); 1141 1142 for (i = 0; i < ARRAY_SIZE(pre_init2); i++) 1143 vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val); 1144 1145 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); 1146 1147 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); 1148 reg &= ~TR_CLK_DISABLE; 1149 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); 1150 1151 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1152 1153 /* end of write broadcasting */ 1154 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS); 1155 reg &= ~SMI_BROADCAST_WR_EN; 1156 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg); 1157 1158 ret = request_firmware(&fw, MSCC_VSC8574_REVB_INT8051_FW, dev); 1159 if (ret) { 1160 dev_err(dev, "failed to load firmware %s, ret: %d\n", 1161 MSCC_VSC8574_REVB_INT8051_FW, ret); 1162 return ret; 1163 } 1164 1165 /* Add one byte to size for the one added by the patch_fw function */ 1166 ret = vsc8584_get_fw_crc(phydev, 1167 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR, 1168 fw->size + 1, &crc); 1169 if (ret) 1170 goto out; 1171 1172 if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) { 1173 serdes_init = vsc8574_is_serdes_init(phydev); 1174 1175 if (!serdes_init) { 1176 ret = vsc8584_micro_assert_reset(phydev); 1177 if (ret) { 1178 dev_err(dev, 1179 "%s: failed to assert reset of micro\n", 1180 __func__); 1181 goto out; 1182 } 1183 } 1184 } else { 1185 dev_dbg(dev, "FW CRC is not the expected one, patching FW\n"); 1186 1187 serdes_init = false; 1188 1189 if (vsc8584_patch_fw(phydev, fw)) 1190 dev_warn(dev, 1191 "failed to patch FW, expect non-optimal device\n"); 1192 } 1193 1194 if (!serdes_init) { 1195 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1196 MSCC_PHY_PAGE_EXTENDED_GPIO); 1197 1198 phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), 0x3eb7); 1199 phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), 0x4012); 1200 phy_base_write(phydev, MSCC_INT_MEM_CNTL, 1201 EN_PATCH_RAM_TRAP_ADDR(1)); 1202 1203 vsc8584_micro_deassert_reset(phydev, false); 1204 1205 /* Add one byte to size for the one added by the patch_fw 1206 * function 1207 */ 1208 ret = vsc8584_get_fw_crc(phydev, 1209 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR, 1210 fw->size + 1, &crc); 1211 if (ret) 1212 goto out; 1213 1214 if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC) 1215 dev_warn(dev, 1216 "FW CRC after patching is not the expected one, expect non-optimal device\n"); 1217 } 1218 1219 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1220 MSCC_PHY_PAGE_EXTENDED_GPIO); 1221 1222 ret = vsc8584_cmd(phydev, PROC_CMD_1588_DEFAULT_INIT | 1223 PROC_CMD_PHY_INIT); 1224 1225 out: 1226 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1227 1228 release_firmware(fw); 1229 1230 return ret; 1231 } 1232 1233 /* Access LCPLL Cfg_2 */ 1234 static void vsc8584_pll5g_cfg2_wr(struct phy_device *phydev, 1235 bool disable_fsm) 1236 { 1237 u32 rd_dat; 1238 1239 rd_dat = vsc85xx_csr_read(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2); 1240 rd_dat &= ~BIT(PHY_S6G_CFG2_FSM_DIS); 1241 rd_dat |= (disable_fsm << PHY_S6G_CFG2_FSM_DIS); 1242 vsc85xx_csr_write(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2, rd_dat); 1243 } 1244 1245 /* trigger a read to the spcified MCB */ 1246 static int vsc8584_mcb_rd_trig(struct phy_device *phydev, 1247 u32 mcb_reg_addr, u8 mcb_slave_num) 1248 { 1249 u32 rd_dat = 0; 1250 1251 /* read MCB */ 1252 vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr, 1253 (0x40000000 | (1L << mcb_slave_num))); 1254 1255 return read_poll_timeout(vsc85xx_csr_read, rd_dat, 1256 !(rd_dat & 0x40000000), 1257 4000, 200000, 0, 1258 phydev, MACRO_CTRL, mcb_reg_addr); 1259 } 1260 1261 /* trigger a write to the spcified MCB */ 1262 static int vsc8584_mcb_wr_trig(struct phy_device *phydev, 1263 u32 mcb_reg_addr, 1264 u8 mcb_slave_num) 1265 { 1266 u32 rd_dat = 0; 1267 1268 /* write back MCB */ 1269 vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr, 1270 (0x80000000 | (1L << mcb_slave_num))); 1271 1272 return read_poll_timeout(vsc85xx_csr_read, rd_dat, 1273 !(rd_dat & 0x80000000), 1274 4000, 200000, 0, 1275 phydev, MACRO_CTRL, mcb_reg_addr); 1276 } 1277 1278 /* Sequence to Reset LCPLL for the VIPER and ELISE PHY */ 1279 static int vsc8584_pll5g_reset(struct phy_device *phydev) 1280 { 1281 bool dis_fsm; 1282 int ret = 0; 1283 1284 ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0); 1285 if (ret < 0) 1286 goto done; 1287 dis_fsm = 1; 1288 1289 /* Reset LCPLL */ 1290 vsc8584_pll5g_cfg2_wr(phydev, dis_fsm); 1291 1292 /* write back LCPLL MCB */ 1293 ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0); 1294 if (ret < 0) 1295 goto done; 1296 1297 /* 10 mSec sleep while LCPLL is hold in reset */ 1298 usleep_range(10000, 20000); 1299 1300 /* read LCPLL MCB into CSRs */ 1301 ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0); 1302 if (ret < 0) 1303 goto done; 1304 dis_fsm = 0; 1305 1306 /* Release the Reset of LCPLL */ 1307 vsc8584_pll5g_cfg2_wr(phydev, dis_fsm); 1308 1309 /* write back LCPLL MCB */ 1310 ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0); 1311 if (ret < 0) 1312 goto done; 1313 1314 usleep_range(110000, 200000); 1315 done: 1316 return ret; 1317 } 1318 1319 /* bus->mdio_lock should be locked when using this function */ 1320 static int vsc8584_config_pre_init(struct phy_device *phydev) 1321 { 1322 static const struct reg_val pre_init1[] = { 1323 {0x07fa, 0x0050100f}, 1324 {0x1688, 0x00049f81}, 1325 {0x0f90, 0x00688980}, 1326 {0x03a4, 0x0000d8f0}, 1327 {0x0fc0, 0x00000400}, 1328 {0x0f82, 0x0012b002}, 1329 {0x1686, 0x00000004}, 1330 {0x168c, 0x00d2c46f}, 1331 {0x17a2, 0x00000620}, 1332 {0x16a0, 0x00eeffdd}, 1333 {0x16a6, 0x00071448}, 1334 {0x16a4, 0x0013132f}, 1335 {0x16a8, 0x00000000}, 1336 {0x0ffc, 0x00c0a028}, 1337 {0x0fe8, 0x0091b06c}, 1338 {0x0fea, 0x00041600}, 1339 {0x0f80, 0x00fffaff}, 1340 {0x0fec, 0x00901809}, 1341 {0x0ffe, 0x00b01007}, 1342 {0x16b0, 0x00eeff00}, 1343 {0x16b2, 0x00007000}, 1344 {0x16b4, 0x00000814}, 1345 }; 1346 static const struct reg_val pre_init2[] = { 1347 {0x0486, 0x0008a518}, 1348 {0x0488, 0x006dc696}, 1349 {0x048a, 0x00000912}, 1350 }; 1351 const struct firmware *fw; 1352 struct device *dev = &phydev->mdio.dev; 1353 unsigned int i; 1354 u16 crc, reg; 1355 int ret; 1356 1357 ret = vsc8584_pll5g_reset(phydev); 1358 if (ret < 0) { 1359 dev_err(dev, "failed LCPLL reset, ret: %d\n", ret); 1360 return ret; 1361 } 1362 1363 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1364 1365 /* all writes below are broadcasted to all PHYs in the same package */ 1366 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS); 1367 reg |= SMI_BROADCAST_WR_EN; 1368 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg); 1369 1370 phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0); 1371 1372 reg = phy_base_read(phydev, MSCC_PHY_BYPASS_CONTROL); 1373 reg |= PARALLEL_DET_IGNORE_ADVERTISED; 1374 phy_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg); 1375 1376 /* The below register writes are tweaking analog and electrical 1377 * configuration that were determined through characterization by PHY 1378 * engineers. These don't mean anything more than "these are the best 1379 * values". 1380 */ 1381 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3); 1382 1383 phy_base_write(phydev, MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 0x2000); 1384 1385 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); 1386 1387 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1f20); 1388 1389 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); 1390 reg |= TR_CLK_DISABLE; 1391 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); 1392 1393 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR); 1394 1395 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x2fa4)); 1396 1397 reg = phy_base_read(phydev, MSCC_PHY_TR_MSB); 1398 reg &= ~0x007f; 1399 reg |= 0x0019; 1400 phy_base_write(phydev, MSCC_PHY_TR_MSB, reg); 1401 1402 phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x0fa4)); 1403 1404 for (i = 0; i < ARRAY_SIZE(pre_init1); i++) 1405 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val); 1406 1407 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2); 1408 1409 phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e); 1410 1411 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR); 1412 1413 for (i = 0; i < ARRAY_SIZE(pre_init2); i++) 1414 vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val); 1415 1416 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); 1417 1418 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); 1419 reg &= ~TR_CLK_DISABLE; 1420 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); 1421 1422 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1423 1424 /* end of write broadcasting */ 1425 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS); 1426 reg &= ~SMI_BROADCAST_WR_EN; 1427 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg); 1428 1429 ret = request_firmware(&fw, MSCC_VSC8584_REVB_INT8051_FW, dev); 1430 if (ret) { 1431 dev_err(dev, "failed to load firmware %s, ret: %d\n", 1432 MSCC_VSC8584_REVB_INT8051_FW, ret); 1433 return ret; 1434 } 1435 1436 /* Add one byte to size for the one added by the patch_fw function */ 1437 ret = vsc8584_get_fw_crc(phydev, 1438 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR, 1439 fw->size + 1, &crc); 1440 if (ret) 1441 goto out; 1442 1443 if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) { 1444 dev_dbg(dev, "FW CRC is not the expected one, patching FW\n"); 1445 if (vsc8584_patch_fw(phydev, fw)) 1446 dev_warn(dev, 1447 "failed to patch FW, expect non-optimal device\n"); 1448 } 1449 1450 vsc8584_micro_deassert_reset(phydev, false); 1451 1452 /* Add one byte to size for the one added by the patch_fw function */ 1453 ret = vsc8584_get_fw_crc(phydev, 1454 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR, 1455 fw->size + 1, &crc); 1456 if (ret) 1457 goto out; 1458 1459 if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) 1460 dev_warn(dev, 1461 "FW CRC after patching is not the expected one, expect non-optimal device\n"); 1462 1463 ret = vsc8584_micro_assert_reset(phydev); 1464 if (ret) 1465 goto out; 1466 1467 /* Write patch vector 0, to skip IB cal polling */ 1468 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO); 1469 reg = MSCC_ROM_TRAP_SERDES_6G_CFG; /* ROM address to trap, for patch vector 0 */ 1470 ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg); 1471 if (ret) 1472 goto out; 1473 1474 reg = MSCC_RAM_TRAP_SERDES_6G_CFG; /* RAM address to jump to, when patch vector 0 enabled */ 1475 ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg); 1476 if (ret) 1477 goto out; 1478 1479 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 1480 reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */ 1481 ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); 1482 if (ret) 1483 goto out; 1484 1485 vsc8584_micro_deassert_reset(phydev, true); 1486 1487 out: 1488 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1489 1490 release_firmware(fw); 1491 1492 return ret; 1493 } 1494 1495 static void vsc8584_get_base_addr(struct phy_device *phydev) 1496 { 1497 struct vsc8531_private *vsc8531 = phydev->priv; 1498 u16 val, addr; 1499 1500 phy_lock_mdio_bus(phydev); 1501 __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED); 1502 1503 addr = __phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_4); 1504 addr >>= PHY_CNTL_4_ADDR_POS; 1505 1506 val = __phy_read(phydev, MSCC_PHY_ACTIPHY_CNTL); 1507 1508 __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1509 phy_unlock_mdio_bus(phydev); 1510 1511 /* In the package, there are two pairs of PHYs (PHY0 + PHY2 and 1512 * PHY1 + PHY3). The first PHY of each pair (PHY0 and PHY1) is 1513 * the base PHY for timestamping operations. 1514 */ 1515 vsc8531->ts_base_addr = phydev->mdio.addr; 1516 vsc8531->ts_base_phy = addr; 1517 1518 if (val & PHY_ADDR_REVERSED) { 1519 vsc8531->base_addr = phydev->mdio.addr + addr; 1520 if (addr > 1) { 1521 vsc8531->ts_base_addr += 2; 1522 vsc8531->ts_base_phy += 2; 1523 } 1524 } else { 1525 vsc8531->base_addr = phydev->mdio.addr - addr; 1526 if (addr > 1) { 1527 vsc8531->ts_base_addr -= 2; 1528 vsc8531->ts_base_phy -= 2; 1529 } 1530 } 1531 1532 vsc8531->addr = addr; 1533 } 1534 1535 static void vsc85xx_coma_mode_release(struct phy_device *phydev) 1536 { 1537 /* The coma mode (pin or reg) provides an optional feature that 1538 * may be used to control when the PHYs become active. 1539 * Alternatively the COMA_MODE pin may be connected low 1540 * so that the PHYs are fully active once out of reset. 1541 */ 1542 1543 /* Enable output (mode=0) and write zero to it */ 1544 vsc85xx_phy_write_page(phydev, MSCC_PHY_PAGE_EXTENDED_GPIO); 1545 __phy_modify(phydev, MSCC_PHY_GPIO_CONTROL_2, 1546 MSCC_PHY_COMA_MODE | MSCC_PHY_COMA_OUTPUT, 0); 1547 vsc85xx_phy_write_page(phydev, MSCC_PHY_PAGE_STANDARD); 1548 } 1549 1550 static int vsc8584_config_host_serdes(struct phy_device *phydev) 1551 { 1552 struct vsc8531_private *vsc8531 = phydev->priv; 1553 int ret; 1554 u16 val; 1555 1556 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1557 MSCC_PHY_PAGE_EXTENDED_GPIO); 1558 if (ret) 1559 return ret; 1560 1561 val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK); 1562 val &= ~MAC_CFG_MASK; 1563 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) { 1564 val |= MAC_CFG_QSGMII; 1565 } else if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { 1566 val |= MAC_CFG_SGMII; 1567 } else { 1568 ret = -EINVAL; 1569 return ret; 1570 } 1571 1572 ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val); 1573 if (ret) 1574 return ret; 1575 1576 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1577 MSCC_PHY_PAGE_STANDARD); 1578 if (ret) 1579 return ret; 1580 1581 val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT | 1582 PROC_CMD_READ_MOD_WRITE_PORT; 1583 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) 1584 val |= PROC_CMD_QSGMII_MAC; 1585 else 1586 val |= PROC_CMD_SGMII_MAC; 1587 1588 ret = vsc8584_cmd(phydev, val); 1589 if (ret) 1590 return ret; 1591 1592 usleep_range(10000, 20000); 1593 1594 /* Disable SerDes for 100Base-FX */ 1595 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | 1596 PROC_CMD_FIBER_PORT(vsc8531->addr) | 1597 PROC_CMD_FIBER_DISABLE | 1598 PROC_CMD_READ_MOD_WRITE_PORT | 1599 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX); 1600 if (ret) 1601 return ret; 1602 1603 /* Disable SerDes for 1000Base-X */ 1604 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | 1605 PROC_CMD_FIBER_PORT(vsc8531->addr) | 1606 PROC_CMD_FIBER_DISABLE | 1607 PROC_CMD_READ_MOD_WRITE_PORT | 1608 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X); 1609 if (ret) 1610 return ret; 1611 1612 return vsc85xx_sd6g_config_v2(phydev); 1613 } 1614 1615 static int vsc8574_config_host_serdes(struct phy_device *phydev) 1616 { 1617 struct vsc8531_private *vsc8531 = phydev->priv; 1618 int ret; 1619 u16 val; 1620 1621 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1622 MSCC_PHY_PAGE_EXTENDED_GPIO); 1623 if (ret) 1624 return ret; 1625 1626 val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK); 1627 val &= ~MAC_CFG_MASK; 1628 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) { 1629 val |= MAC_CFG_QSGMII; 1630 } else if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { 1631 val |= MAC_CFG_SGMII; 1632 } else if (phy_interface_is_rgmii(phydev)) { 1633 val |= MAC_CFG_RGMII; 1634 } else { 1635 ret = -EINVAL; 1636 return ret; 1637 } 1638 1639 ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val); 1640 if (ret) 1641 return ret; 1642 1643 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1644 MSCC_PHY_PAGE_STANDARD); 1645 if (ret) 1646 return ret; 1647 1648 if (!phy_interface_is_rgmii(phydev)) { 1649 val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT | 1650 PROC_CMD_READ_MOD_WRITE_PORT; 1651 if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) 1652 val |= PROC_CMD_QSGMII_MAC; 1653 else 1654 val |= PROC_CMD_SGMII_MAC; 1655 1656 ret = vsc8584_cmd(phydev, val); 1657 if (ret) 1658 return ret; 1659 1660 usleep_range(10000, 20000); 1661 } 1662 1663 /* Disable SerDes for 100Base-FX */ 1664 ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | 1665 PROC_CMD_FIBER_PORT(vsc8531->addr) | 1666 PROC_CMD_FIBER_DISABLE | 1667 PROC_CMD_READ_MOD_WRITE_PORT | 1668 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX); 1669 if (ret) 1670 return ret; 1671 1672 /* Disable SerDes for 1000Base-X */ 1673 return vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF | 1674 PROC_CMD_FIBER_PORT(vsc8531->addr) | 1675 PROC_CMD_FIBER_DISABLE | 1676 PROC_CMD_READ_MOD_WRITE_PORT | 1677 PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X); 1678 } 1679 1680 static int vsc8584_config_init(struct phy_device *phydev) 1681 { 1682 struct vsc8531_private *vsc8531 = phydev->priv; 1683 int ret, i; 1684 u16 val; 1685 1686 phydev->mdix_ctrl = ETH_TP_MDI_AUTO; 1687 1688 phy_lock_mdio_bus(phydev); 1689 1690 /* Some parts of the init sequence are identical for every PHY in the 1691 * package. Some parts are modifying the GPIO register bank which is a 1692 * set of registers that are affecting all PHYs, a few resetting the 1693 * microprocessor common to all PHYs. The CRC check responsible of the 1694 * checking the firmware within the 8051 microprocessor can only be 1695 * accessed via the PHY whose internal address in the package is 0. 1696 * All PHYs' interrupts mask register has to be zeroed before enabling 1697 * any PHY's interrupt in this register. 1698 * For all these reasons, we need to do the init sequence once and only 1699 * once whatever is the first PHY in the package that is initialized and 1700 * do the correct init sequence for all PHYs that are package-critical 1701 * in this pre-init function. 1702 */ 1703 if (phy_package_init_once(phydev)) { 1704 /* The following switch statement assumes that the lowest 1705 * nibble of the phy_id_mask is always 0. This works because 1706 * the lowest nibble of the PHY_ID's below are also 0. 1707 */ 1708 WARN_ON(phydev->drv->phy_id_mask & 0xf); 1709 1710 switch (phydev->phy_id & phydev->drv->phy_id_mask) { 1711 case PHY_ID_VSC8504: 1712 case PHY_ID_VSC8552: 1713 case PHY_ID_VSC8572: 1714 case PHY_ID_VSC8574: 1715 ret = vsc8574_config_pre_init(phydev); 1716 if (ret) 1717 goto err; 1718 ret = vsc8574_config_host_serdes(phydev); 1719 if (ret) 1720 goto err; 1721 break; 1722 case PHY_ID_VSC856X: 1723 case PHY_ID_VSC8575: 1724 case PHY_ID_VSC8582: 1725 case PHY_ID_VSC8584: 1726 ret = vsc8584_config_pre_init(phydev); 1727 if (ret) 1728 goto err; 1729 ret = vsc8584_config_host_serdes(phydev); 1730 if (ret) 1731 goto err; 1732 vsc85xx_coma_mode_release(phydev); 1733 break; 1734 default: 1735 ret = -EINVAL; 1736 break; 1737 } 1738 1739 if (ret) 1740 goto err; 1741 } 1742 1743 phy_unlock_mdio_bus(phydev); 1744 1745 ret = vsc8584_macsec_init(phydev); 1746 if (ret) 1747 return ret; 1748 1749 ret = vsc8584_ptp_init(phydev); 1750 if (ret) 1751 return ret; 1752 1753 val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1); 1754 val &= ~(MEDIA_OP_MODE_MASK | VSC8584_MAC_IF_SELECTION_MASK); 1755 val |= (MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS) | 1756 (VSC8584_MAC_IF_SELECTION_SGMII << VSC8584_MAC_IF_SELECTION_POS); 1757 ret = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, val); 1758 if (ret) 1759 return ret; 1760 1761 if (phy_interface_is_rgmii(phydev)) { 1762 ret = vsc85xx_rgmii_set_skews(phydev, VSC8572_RGMII_CNTL, 1763 VSC8572_RGMII_RX_DELAY_MASK, 1764 VSC8572_RGMII_TX_DELAY_MASK); 1765 if (ret) 1766 return ret; 1767 } 1768 1769 ret = genphy_soft_reset(phydev); 1770 if (ret) 1771 return ret; 1772 1773 for (i = 0; i < vsc8531->nleds; i++) { 1774 ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]); 1775 if (ret) 1776 return ret; 1777 } 1778 1779 return 0; 1780 1781 err: 1782 phy_unlock_mdio_bus(phydev); 1783 return ret; 1784 } 1785 1786 static irqreturn_t vsc8584_handle_interrupt(struct phy_device *phydev) 1787 { 1788 irqreturn_t ret; 1789 int irq_status; 1790 1791 irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS); 1792 if (irq_status < 0) 1793 return IRQ_NONE; 1794 1795 /* Timestamping IRQ does not set a bit in the global INT_STATUS, so 1796 * irq_status would be 0. 1797 */ 1798 ret = vsc8584_handle_ts_interrupt(phydev); 1799 if (!(irq_status & MII_VSC85XX_INT_MASK_MASK)) 1800 return ret; 1801 1802 if (irq_status & MII_VSC85XX_INT_MASK_EXT) 1803 vsc8584_handle_macsec_interrupt(phydev); 1804 1805 if (irq_status & MII_VSC85XX_INT_MASK_LINK_CHG) 1806 phy_trigger_machine(phydev); 1807 1808 return IRQ_HANDLED; 1809 } 1810 1811 static int vsc85xx_config_init(struct phy_device *phydev) 1812 { 1813 int rc, i, phy_id; 1814 struct vsc8531_private *vsc8531 = phydev->priv; 1815 1816 rc = vsc85xx_default_config(phydev); 1817 if (rc) 1818 return rc; 1819 1820 rc = vsc85xx_mac_if_set(phydev, phydev->interface); 1821 if (rc) 1822 return rc; 1823 1824 rc = vsc85xx_edge_rate_cntl_set(phydev, vsc8531->rate_magic); 1825 if (rc) 1826 return rc; 1827 1828 phy_id = phydev->drv->phy_id & phydev->drv->phy_id_mask; 1829 if (PHY_ID_VSC8531 == phy_id || PHY_ID_VSC8541 == phy_id || 1830 PHY_ID_VSC8530 == phy_id || PHY_ID_VSC8540 == phy_id) { 1831 rc = vsc8531_pre_init_seq_set(phydev); 1832 if (rc) 1833 return rc; 1834 } 1835 1836 rc = vsc85xx_eee_init_seq_set(phydev); 1837 if (rc) 1838 return rc; 1839 1840 for (i = 0; i < vsc8531->nleds; i++) { 1841 rc = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]); 1842 if (rc) 1843 return rc; 1844 } 1845 1846 return 0; 1847 } 1848 1849 static int __phy_write_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb, 1850 u32 op) 1851 { 1852 unsigned long deadline; 1853 u32 val; 1854 int ret; 1855 1856 ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET, reg, 1857 op | (1 << mcb)); 1858 if (ret) 1859 return -EINVAL; 1860 1861 deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); 1862 do { 1863 usleep_range(500, 1000); 1864 val = vsc85xx_csr_read(phydev, PHY_MCB_TARGET, reg); 1865 1866 if (val == 0xffffffff) 1867 return -EIO; 1868 1869 } while (time_before(jiffies, deadline) && (val & op)); 1870 1871 if (val & op) 1872 return -ETIMEDOUT; 1873 1874 return 0; 1875 } 1876 1877 /* Trigger a read to the specified MCB */ 1878 int phy_update_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb) 1879 { 1880 return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_READ); 1881 } 1882 1883 /* Trigger a write to the specified MCB */ 1884 int phy_commit_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb) 1885 { 1886 return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_WRITE); 1887 } 1888 1889 static int vsc8514_config_host_serdes(struct phy_device *phydev) 1890 { 1891 int ret; 1892 u16 val; 1893 1894 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1895 MSCC_PHY_PAGE_EXTENDED_GPIO); 1896 if (ret) 1897 return ret; 1898 1899 val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK); 1900 val &= ~MAC_CFG_MASK; 1901 val |= MAC_CFG_QSGMII; 1902 ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val); 1903 if (ret) 1904 return ret; 1905 1906 ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 1907 MSCC_PHY_PAGE_STANDARD); 1908 if (ret) 1909 return ret; 1910 1911 ret = vsc8584_cmd(phydev, PROC_CMD_NOP); 1912 if (ret) 1913 return ret; 1914 1915 ret = vsc8584_cmd(phydev, 1916 PROC_CMD_MCB_ACCESS_MAC_CONF | 1917 PROC_CMD_RST_CONF_PORT | 1918 PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_QSGMII_MAC); 1919 if (ret) { 1920 dev_err(&phydev->mdio.dev, "%s: QSGMII error: %d\n", 1921 __func__, ret); 1922 return ret; 1923 } 1924 1925 /* Apply 6G SerDes FOJI Algorithm 1926 * Initial condition requirement: 1927 * 1. hold 8051 in reset 1928 * 2. disable patch vector 0, in order to allow IB cal poll during FoJi 1929 * 3. deassert 8051 reset after change patch vector status 1930 * 4. proceed with FoJi (vsc85xx_sd6g_config_v2) 1931 */ 1932 vsc8584_micro_assert_reset(phydev); 1933 val = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 1934 /* clear bit 8, to disable patch vector 0 */ 1935 val &= ~PATCH_VEC_ZERO_EN; 1936 ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, val); 1937 /* Enable 8051 clock, don't set patch present, disable PRAM clock override */ 1938 vsc8584_micro_deassert_reset(phydev, false); 1939 1940 return vsc85xx_sd6g_config_v2(phydev); 1941 } 1942 1943 static int vsc8514_config_pre_init(struct phy_device *phydev) 1944 { 1945 /* These are the settings to override the silicon default 1946 * values to handle hardware performance of PHY. They 1947 * are set at Power-On state and remain until PHY Reset. 1948 */ 1949 static const struct reg_val pre_init1[] = { 1950 {0x0f90, 0x00688980}, 1951 {0x0786, 0x00000003}, 1952 {0x07fa, 0x0050100f}, 1953 {0x0f82, 0x0012b002}, 1954 {0x1686, 0x00000004}, 1955 {0x168c, 0x00d2c46f}, 1956 {0x17a2, 0x00000620}, 1957 {0x16a0, 0x00eeffdd}, 1958 {0x16a6, 0x00071448}, 1959 {0x16a4, 0x0013132f}, 1960 {0x16a8, 0x00000000}, 1961 {0x0ffc, 0x00c0a028}, 1962 {0x0fe8, 0x0091b06c}, 1963 {0x0fea, 0x00041600}, 1964 {0x0f80, 0x00fffaff}, 1965 {0x0fec, 0x00901809}, 1966 {0x0ffe, 0x00b01007}, 1967 {0x16b0, 0x00eeff00}, 1968 {0x16b2, 0x00007000}, 1969 {0x16b4, 0x00000814}, 1970 }; 1971 struct device *dev = &phydev->mdio.dev; 1972 unsigned int i; 1973 u16 reg; 1974 int ret; 1975 1976 ret = vsc8584_pll5g_reset(phydev); 1977 if (ret < 0) { 1978 dev_err(dev, "failed LCPLL reset, ret: %d\n", ret); 1979 return ret; 1980 } 1981 1982 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 1983 1984 /* all writes below are broadcasted to all PHYs in the same package */ 1985 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS); 1986 reg |= SMI_BROADCAST_WR_EN; 1987 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg); 1988 1989 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); 1990 1991 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); 1992 reg |= BIT(15); 1993 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); 1994 1995 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR); 1996 1997 for (i = 0; i < ARRAY_SIZE(pre_init1); i++) 1998 vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val); 1999 2000 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST); 2001 2002 reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8); 2003 reg &= ~BIT(15); 2004 phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg); 2005 2006 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); 2007 2008 reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS); 2009 reg &= ~SMI_BROADCAST_WR_EN; 2010 phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg); 2011 2012 /* Add pre-patching commands to: 2013 * 1. enable 8051 clock, operate 8051 clock at 125 MHz 2014 * instead of HW default 62.5MHz 2015 * 2. write patch vector 0, to skip IB cal polling executed 2016 * as part of the 0x80E0 ROM command 2017 */ 2018 vsc8584_micro_deassert_reset(phydev, false); 2019 2020 vsc8584_micro_assert_reset(phydev); 2021 phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, 2022 MSCC_PHY_PAGE_EXTENDED_GPIO); 2023 /* ROM address to trap, for patch vector 0 */ 2024 reg = MSCC_ROM_TRAP_SERDES_6G_CFG; 2025 ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg); 2026 if (ret) 2027 goto err; 2028 /* RAM address to jump to, when patch vector 0 enabled */ 2029 reg = MSCC_RAM_TRAP_SERDES_6G_CFG; 2030 ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg); 2031 if (ret) 2032 goto err; 2033 reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL); 2034 reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */ 2035 ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg); 2036 if (ret) 2037 goto err; 2038 2039 /* Enable 8051 clock, don't set patch present 2040 * yet, disable PRAM clock override 2041 */ 2042 vsc8584_micro_deassert_reset(phydev, false); 2043 return ret; 2044 err: 2045 /* restore 8051 and bail w error */ 2046 vsc8584_micro_deassert_reset(phydev, false); 2047 return ret; 2048 } 2049 2050 static int vsc8514_config_init(struct phy_device *phydev) 2051 { 2052 struct vsc8531_private *vsc8531 = phydev->priv; 2053 int ret, i; 2054 2055 phydev->mdix_ctrl = ETH_TP_MDI_AUTO; 2056 2057 phy_lock_mdio_bus(phydev); 2058 2059 /* Some parts of the init sequence are identical for every PHY in the 2060 * package. Some parts are modifying the GPIO register bank which is a 2061 * set of registers that are affecting all PHYs, a few resetting the 2062 * microprocessor common to all PHYs. 2063 * All PHYs' interrupts mask register has to be zeroed before enabling 2064 * any PHY's interrupt in this register. 2065 * For all these reasons, we need to do the init sequence once and only 2066 * once whatever is the first PHY in the package that is initialized and 2067 * do the correct init sequence for all PHYs that are package-critical 2068 * in this pre-init function. 2069 */ 2070 if (phy_package_init_once(phydev)) { 2071 ret = vsc8514_config_pre_init(phydev); 2072 if (ret) 2073 goto err; 2074 ret = vsc8514_config_host_serdes(phydev); 2075 if (ret) 2076 goto err; 2077 vsc85xx_coma_mode_release(phydev); 2078 } 2079 2080 phy_unlock_mdio_bus(phydev); 2081 2082 ret = phy_modify(phydev, MSCC_PHY_EXT_PHY_CNTL_1, MEDIA_OP_MODE_MASK, 2083 MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS); 2084 2085 if (ret) 2086 return ret; 2087 2088 ret = genphy_soft_reset(phydev); 2089 2090 if (ret) 2091 return ret; 2092 2093 for (i = 0; i < vsc8531->nleds; i++) { 2094 ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]); 2095 if (ret) 2096 return ret; 2097 } 2098 2099 return ret; 2100 2101 err: 2102 phy_unlock_mdio_bus(phydev); 2103 return ret; 2104 } 2105 2106 static int vsc85xx_ack_interrupt(struct phy_device *phydev) 2107 { 2108 int rc = 0; 2109 2110 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) 2111 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS); 2112 2113 return (rc < 0) ? rc : 0; 2114 } 2115 2116 static int vsc85xx_config_intr(struct phy_device *phydev) 2117 { 2118 int rc; 2119 2120 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { 2121 rc = vsc85xx_ack_interrupt(phydev); 2122 if (rc) 2123 return rc; 2124 2125 vsc8584_config_macsec_intr(phydev); 2126 vsc8584_config_ts_intr(phydev); 2127 2128 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, 2129 MII_VSC85XX_INT_MASK_MASK); 2130 } else { 2131 rc = phy_write(phydev, MII_VSC85XX_INT_MASK, 0); 2132 if (rc < 0) 2133 return rc; 2134 rc = phy_read(phydev, MII_VSC85XX_INT_STATUS); 2135 if (rc < 0) 2136 return rc; 2137 2138 rc = vsc85xx_ack_interrupt(phydev); 2139 } 2140 2141 return rc; 2142 } 2143 2144 static irqreturn_t vsc85xx_handle_interrupt(struct phy_device *phydev) 2145 { 2146 int irq_status; 2147 2148 irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS); 2149 if (irq_status < 0) { 2150 phy_error(phydev); 2151 return IRQ_NONE; 2152 } 2153 2154 if (!(irq_status & MII_VSC85XX_INT_MASK_MASK)) 2155 return IRQ_NONE; 2156 2157 phy_trigger_machine(phydev); 2158 2159 return IRQ_HANDLED; 2160 } 2161 2162 static int vsc85xx_config_aneg(struct phy_device *phydev) 2163 { 2164 int rc; 2165 2166 rc = vsc85xx_mdix_set(phydev, phydev->mdix_ctrl); 2167 if (rc < 0) 2168 return rc; 2169 2170 return genphy_config_aneg(phydev); 2171 } 2172 2173 static int vsc85xx_read_status(struct phy_device *phydev) 2174 { 2175 int rc; 2176 2177 rc = vsc85xx_mdix_get(phydev, &phydev->mdix); 2178 if (rc < 0) 2179 return rc; 2180 2181 return genphy_read_status(phydev); 2182 } 2183 2184 static int vsc8514_probe(struct phy_device *phydev) 2185 { 2186 struct vsc8531_private *vsc8531; 2187 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY, 2188 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY, 2189 VSC8531_DUPLEX_COLLISION}; 2190 2191 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL); 2192 if (!vsc8531) 2193 return -ENOMEM; 2194 2195 phydev->priv = vsc8531; 2196 2197 vsc8584_get_base_addr(phydev); 2198 devm_phy_package_join(&phydev->mdio.dev, phydev, 2199 vsc8531->base_addr, 0); 2200 2201 vsc8531->nleds = 4; 2202 vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES; 2203 vsc8531->hw_stats = vsc85xx_hw_stats; 2204 vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats); 2205 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats, 2206 sizeof(u64), GFP_KERNEL); 2207 if (!vsc8531->stats) 2208 return -ENOMEM; 2209 2210 return vsc85xx_dt_led_modes_get(phydev, default_mode); 2211 } 2212 2213 static int vsc8574_probe(struct phy_device *phydev) 2214 { 2215 struct vsc8531_private *vsc8531; 2216 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY, 2217 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY, 2218 VSC8531_DUPLEX_COLLISION}; 2219 2220 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL); 2221 if (!vsc8531) 2222 return -ENOMEM; 2223 2224 phydev->priv = vsc8531; 2225 2226 vsc8584_get_base_addr(phydev); 2227 devm_phy_package_join(&phydev->mdio.dev, phydev, 2228 vsc8531->base_addr, 0); 2229 2230 vsc8531->nleds = 4; 2231 vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES; 2232 vsc8531->hw_stats = vsc8584_hw_stats; 2233 vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats); 2234 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats, 2235 sizeof(u64), GFP_KERNEL); 2236 if (!vsc8531->stats) 2237 return -ENOMEM; 2238 2239 return vsc85xx_dt_led_modes_get(phydev, default_mode); 2240 } 2241 2242 static int vsc8584_probe(struct phy_device *phydev) 2243 { 2244 struct vsc8531_private *vsc8531; 2245 u32 default_mode[4] = {VSC8531_LINK_1000_ACTIVITY, 2246 VSC8531_LINK_100_ACTIVITY, VSC8531_LINK_ACTIVITY, 2247 VSC8531_DUPLEX_COLLISION}; 2248 int ret; 2249 2250 if ((phydev->phy_id & MSCC_DEV_REV_MASK) != VSC8584_REVB) { 2251 dev_err(&phydev->mdio.dev, "Only VSC8584 revB is supported.\n"); 2252 return -ENOTSUPP; 2253 } 2254 2255 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL); 2256 if (!vsc8531) 2257 return -ENOMEM; 2258 2259 phydev->priv = vsc8531; 2260 2261 vsc8584_get_base_addr(phydev); 2262 devm_phy_package_join(&phydev->mdio.dev, phydev, vsc8531->base_addr, 2263 sizeof(struct vsc85xx_shared_private)); 2264 2265 vsc8531->nleds = 4; 2266 vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES; 2267 vsc8531->hw_stats = vsc8584_hw_stats; 2268 vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats); 2269 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats, 2270 sizeof(u64), GFP_KERNEL); 2271 if (!vsc8531->stats) 2272 return -ENOMEM; 2273 2274 if (phy_package_probe_once(phydev)) { 2275 ret = vsc8584_ptp_probe_once(phydev); 2276 if (ret) 2277 return ret; 2278 } 2279 2280 ret = vsc8584_ptp_probe(phydev); 2281 if (ret) 2282 return ret; 2283 2284 return vsc85xx_dt_led_modes_get(phydev, default_mode); 2285 } 2286 2287 static int vsc85xx_probe(struct phy_device *phydev) 2288 { 2289 struct vsc8531_private *vsc8531; 2290 int rate_magic; 2291 u32 default_mode[2] = {VSC8531_LINK_1000_ACTIVITY, 2292 VSC8531_LINK_100_ACTIVITY}; 2293 2294 rate_magic = vsc85xx_edge_rate_magic_get(phydev); 2295 if (rate_magic < 0) 2296 return rate_magic; 2297 2298 vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL); 2299 if (!vsc8531) 2300 return -ENOMEM; 2301 2302 phydev->priv = vsc8531; 2303 2304 vsc8531->rate_magic = rate_magic; 2305 vsc8531->nleds = 2; 2306 vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES; 2307 vsc8531->hw_stats = vsc85xx_hw_stats; 2308 vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats); 2309 vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats, 2310 sizeof(u64), GFP_KERNEL); 2311 if (!vsc8531->stats) 2312 return -ENOMEM; 2313 2314 return vsc85xx_dt_led_modes_get(phydev, default_mode); 2315 } 2316 2317 /* Microsemi VSC85xx PHYs */ 2318 static struct phy_driver vsc85xx_driver[] = { 2319 { 2320 .phy_id = PHY_ID_VSC8502, 2321 .name = "Microsemi GE VSC8502 SyncE", 2322 .phy_id_mask = 0xfffffff0, 2323 /* PHY_BASIC_FEATURES */ 2324 .soft_reset = &genphy_soft_reset, 2325 .config_init = &vsc85xx_config_init, 2326 .config_aneg = &vsc85xx_config_aneg, 2327 .read_status = &vsc85xx_read_status, 2328 .handle_interrupt = vsc85xx_handle_interrupt, 2329 .config_intr = &vsc85xx_config_intr, 2330 .suspend = &genphy_suspend, 2331 .resume = &genphy_resume, 2332 .probe = &vsc85xx_probe, 2333 .set_wol = &vsc85xx_wol_set, 2334 .get_wol = &vsc85xx_wol_get, 2335 .get_tunable = &vsc85xx_get_tunable, 2336 .set_tunable = &vsc85xx_set_tunable, 2337 .read_page = &vsc85xx_phy_read_page, 2338 .write_page = &vsc85xx_phy_write_page, 2339 .get_sset_count = &vsc85xx_get_sset_count, 2340 .get_strings = &vsc85xx_get_strings, 2341 .get_stats = &vsc85xx_get_stats, 2342 }, 2343 { 2344 .phy_id = PHY_ID_VSC8504, 2345 .name = "Microsemi GE VSC8504 SyncE", 2346 .phy_id_mask = 0xfffffff0, 2347 /* PHY_GBIT_FEATURES */ 2348 .soft_reset = &genphy_soft_reset, 2349 .config_init = &vsc8584_config_init, 2350 .config_aneg = &vsc85xx_config_aneg, 2351 .aneg_done = &genphy_aneg_done, 2352 .read_status = &vsc85xx_read_status, 2353 .handle_interrupt = vsc85xx_handle_interrupt, 2354 .config_intr = &vsc85xx_config_intr, 2355 .suspend = &genphy_suspend, 2356 .resume = &genphy_resume, 2357 .probe = &vsc8574_probe, 2358 .set_wol = &vsc85xx_wol_set, 2359 .get_wol = &vsc85xx_wol_get, 2360 .get_tunable = &vsc85xx_get_tunable, 2361 .set_tunable = &vsc85xx_set_tunable, 2362 .read_page = &vsc85xx_phy_read_page, 2363 .write_page = &vsc85xx_phy_write_page, 2364 .get_sset_count = &vsc85xx_get_sset_count, 2365 .get_strings = &vsc85xx_get_strings, 2366 .get_stats = &vsc85xx_get_stats, 2367 }, 2368 { 2369 .phy_id = PHY_ID_VSC8514, 2370 .name = "Microsemi GE VSC8514 SyncE", 2371 .phy_id_mask = 0xfffffff0, 2372 .soft_reset = &genphy_soft_reset, 2373 .config_init = &vsc8514_config_init, 2374 .config_aneg = &vsc85xx_config_aneg, 2375 .read_status = &vsc85xx_read_status, 2376 .handle_interrupt = vsc85xx_handle_interrupt, 2377 .config_intr = &vsc85xx_config_intr, 2378 .suspend = &genphy_suspend, 2379 .resume = &genphy_resume, 2380 .probe = &vsc8514_probe, 2381 .set_wol = &vsc85xx_wol_set, 2382 .get_wol = &vsc85xx_wol_get, 2383 .get_tunable = &vsc85xx_get_tunable, 2384 .set_tunable = &vsc85xx_set_tunable, 2385 .read_page = &vsc85xx_phy_read_page, 2386 .write_page = &vsc85xx_phy_write_page, 2387 .get_sset_count = &vsc85xx_get_sset_count, 2388 .get_strings = &vsc85xx_get_strings, 2389 .get_stats = &vsc85xx_get_stats, 2390 }, 2391 { 2392 .phy_id = PHY_ID_VSC8530, 2393 .name = "Microsemi FE VSC8530", 2394 .phy_id_mask = 0xfffffff0, 2395 /* PHY_BASIC_FEATURES */ 2396 .soft_reset = &genphy_soft_reset, 2397 .config_init = &vsc85xx_config_init, 2398 .config_aneg = &vsc85xx_config_aneg, 2399 .read_status = &vsc85xx_read_status, 2400 .handle_interrupt = vsc85xx_handle_interrupt, 2401 .config_intr = &vsc85xx_config_intr, 2402 .suspend = &genphy_suspend, 2403 .resume = &genphy_resume, 2404 .probe = &vsc85xx_probe, 2405 .set_wol = &vsc85xx_wol_set, 2406 .get_wol = &vsc85xx_wol_get, 2407 .get_tunable = &vsc85xx_get_tunable, 2408 .set_tunable = &vsc85xx_set_tunable, 2409 .read_page = &vsc85xx_phy_read_page, 2410 .write_page = &vsc85xx_phy_write_page, 2411 .get_sset_count = &vsc85xx_get_sset_count, 2412 .get_strings = &vsc85xx_get_strings, 2413 .get_stats = &vsc85xx_get_stats, 2414 }, 2415 { 2416 .phy_id = PHY_ID_VSC8531, 2417 .name = "Microsemi VSC8531", 2418 .phy_id_mask = 0xfffffff0, 2419 /* PHY_GBIT_FEATURES */ 2420 .soft_reset = &genphy_soft_reset, 2421 .config_init = &vsc85xx_config_init, 2422 .config_aneg = &vsc85xx_config_aneg, 2423 .read_status = &vsc85xx_read_status, 2424 .handle_interrupt = vsc85xx_handle_interrupt, 2425 .config_intr = &vsc85xx_config_intr, 2426 .suspend = &genphy_suspend, 2427 .resume = &genphy_resume, 2428 .probe = &vsc85xx_probe, 2429 .set_wol = &vsc85xx_wol_set, 2430 .get_wol = &vsc85xx_wol_get, 2431 .get_tunable = &vsc85xx_get_tunable, 2432 .set_tunable = &vsc85xx_set_tunable, 2433 .read_page = &vsc85xx_phy_read_page, 2434 .write_page = &vsc85xx_phy_write_page, 2435 .get_sset_count = &vsc85xx_get_sset_count, 2436 .get_strings = &vsc85xx_get_strings, 2437 .get_stats = &vsc85xx_get_stats, 2438 }, 2439 { 2440 .phy_id = PHY_ID_VSC8540, 2441 .name = "Microsemi FE VSC8540 SyncE", 2442 .phy_id_mask = 0xfffffff0, 2443 /* PHY_BASIC_FEATURES */ 2444 .soft_reset = &genphy_soft_reset, 2445 .config_init = &vsc85xx_config_init, 2446 .config_aneg = &vsc85xx_config_aneg, 2447 .read_status = &vsc85xx_read_status, 2448 .handle_interrupt = vsc85xx_handle_interrupt, 2449 .config_intr = &vsc85xx_config_intr, 2450 .suspend = &genphy_suspend, 2451 .resume = &genphy_resume, 2452 .probe = &vsc85xx_probe, 2453 .set_wol = &vsc85xx_wol_set, 2454 .get_wol = &vsc85xx_wol_get, 2455 .get_tunable = &vsc85xx_get_tunable, 2456 .set_tunable = &vsc85xx_set_tunable, 2457 .read_page = &vsc85xx_phy_read_page, 2458 .write_page = &vsc85xx_phy_write_page, 2459 .get_sset_count = &vsc85xx_get_sset_count, 2460 .get_strings = &vsc85xx_get_strings, 2461 .get_stats = &vsc85xx_get_stats, 2462 }, 2463 { 2464 .phy_id = PHY_ID_VSC8541, 2465 .name = "Microsemi VSC8541 SyncE", 2466 .phy_id_mask = 0xfffffff0, 2467 /* PHY_GBIT_FEATURES */ 2468 .soft_reset = &genphy_soft_reset, 2469 .config_init = &vsc85xx_config_init, 2470 .config_aneg = &vsc85xx_config_aneg, 2471 .read_status = &vsc85xx_read_status, 2472 .handle_interrupt = vsc85xx_handle_interrupt, 2473 .config_intr = &vsc85xx_config_intr, 2474 .suspend = &genphy_suspend, 2475 .resume = &genphy_resume, 2476 .probe = &vsc85xx_probe, 2477 .set_wol = &vsc85xx_wol_set, 2478 .get_wol = &vsc85xx_wol_get, 2479 .get_tunable = &vsc85xx_get_tunable, 2480 .set_tunable = &vsc85xx_set_tunable, 2481 .read_page = &vsc85xx_phy_read_page, 2482 .write_page = &vsc85xx_phy_write_page, 2483 .get_sset_count = &vsc85xx_get_sset_count, 2484 .get_strings = &vsc85xx_get_strings, 2485 .get_stats = &vsc85xx_get_stats, 2486 }, 2487 { 2488 .phy_id = PHY_ID_VSC8552, 2489 .name = "Microsemi GE VSC8552 SyncE", 2490 .phy_id_mask = 0xfffffff0, 2491 /* PHY_GBIT_FEATURES */ 2492 .soft_reset = &genphy_soft_reset, 2493 .config_init = &vsc8584_config_init, 2494 .config_aneg = &vsc85xx_config_aneg, 2495 .read_status = &vsc85xx_read_status, 2496 .handle_interrupt = vsc85xx_handle_interrupt, 2497 .config_intr = &vsc85xx_config_intr, 2498 .suspend = &genphy_suspend, 2499 .resume = &genphy_resume, 2500 .probe = &vsc8574_probe, 2501 .set_wol = &vsc85xx_wol_set, 2502 .get_wol = &vsc85xx_wol_get, 2503 .get_tunable = &vsc85xx_get_tunable, 2504 .set_tunable = &vsc85xx_set_tunable, 2505 .read_page = &vsc85xx_phy_read_page, 2506 .write_page = &vsc85xx_phy_write_page, 2507 .get_sset_count = &vsc85xx_get_sset_count, 2508 .get_strings = &vsc85xx_get_strings, 2509 .get_stats = &vsc85xx_get_stats, 2510 }, 2511 { 2512 .phy_id = PHY_ID_VSC856X, 2513 .name = "Microsemi GE VSC856X SyncE", 2514 .phy_id_mask = 0xfffffff0, 2515 /* PHY_GBIT_FEATURES */ 2516 .soft_reset = &genphy_soft_reset, 2517 .config_init = &vsc8584_config_init, 2518 .config_aneg = &vsc85xx_config_aneg, 2519 .read_status = &vsc85xx_read_status, 2520 .handle_interrupt = vsc85xx_handle_interrupt, 2521 .config_intr = &vsc85xx_config_intr, 2522 .suspend = &genphy_suspend, 2523 .resume = &genphy_resume, 2524 .probe = &vsc8584_probe, 2525 .get_tunable = &vsc85xx_get_tunable, 2526 .set_tunable = &vsc85xx_set_tunable, 2527 .read_page = &vsc85xx_phy_read_page, 2528 .write_page = &vsc85xx_phy_write_page, 2529 .get_sset_count = &vsc85xx_get_sset_count, 2530 .get_strings = &vsc85xx_get_strings, 2531 .get_stats = &vsc85xx_get_stats, 2532 }, 2533 { 2534 .phy_id = PHY_ID_VSC8572, 2535 .name = "Microsemi GE VSC8572 SyncE", 2536 .phy_id_mask = 0xfffffff0, 2537 /* PHY_GBIT_FEATURES */ 2538 .soft_reset = &genphy_soft_reset, 2539 .config_init = &vsc8584_config_init, 2540 .config_aneg = &vsc85xx_config_aneg, 2541 .aneg_done = &genphy_aneg_done, 2542 .read_status = &vsc85xx_read_status, 2543 .handle_interrupt = &vsc8584_handle_interrupt, 2544 .config_intr = &vsc85xx_config_intr, 2545 .suspend = &genphy_suspend, 2546 .resume = &genphy_resume, 2547 .probe = &vsc8574_probe, 2548 .set_wol = &vsc85xx_wol_set, 2549 .get_wol = &vsc85xx_wol_get, 2550 .get_tunable = &vsc85xx_get_tunable, 2551 .set_tunable = &vsc85xx_set_tunable, 2552 .read_page = &vsc85xx_phy_read_page, 2553 .write_page = &vsc85xx_phy_write_page, 2554 .get_sset_count = &vsc85xx_get_sset_count, 2555 .get_strings = &vsc85xx_get_strings, 2556 .get_stats = &vsc85xx_get_stats, 2557 }, 2558 { 2559 .phy_id = PHY_ID_VSC8574, 2560 .name = "Microsemi GE VSC8574 SyncE", 2561 .phy_id_mask = 0xfffffff0, 2562 /* PHY_GBIT_FEATURES */ 2563 .soft_reset = &genphy_soft_reset, 2564 .config_init = &vsc8584_config_init, 2565 .config_aneg = &vsc85xx_config_aneg, 2566 .aneg_done = &genphy_aneg_done, 2567 .read_status = &vsc85xx_read_status, 2568 .handle_interrupt = vsc85xx_handle_interrupt, 2569 .config_intr = &vsc85xx_config_intr, 2570 .suspend = &genphy_suspend, 2571 .resume = &genphy_resume, 2572 .probe = &vsc8574_probe, 2573 .set_wol = &vsc85xx_wol_set, 2574 .get_wol = &vsc85xx_wol_get, 2575 .get_tunable = &vsc85xx_get_tunable, 2576 .set_tunable = &vsc85xx_set_tunable, 2577 .read_page = &vsc85xx_phy_read_page, 2578 .write_page = &vsc85xx_phy_write_page, 2579 .get_sset_count = &vsc85xx_get_sset_count, 2580 .get_strings = &vsc85xx_get_strings, 2581 .get_stats = &vsc85xx_get_stats, 2582 }, 2583 { 2584 .phy_id = PHY_ID_VSC8575, 2585 .name = "Microsemi GE VSC8575 SyncE", 2586 .phy_id_mask = 0xfffffff0, 2587 /* PHY_GBIT_FEATURES */ 2588 .soft_reset = &genphy_soft_reset, 2589 .config_init = &vsc8584_config_init, 2590 .config_aneg = &vsc85xx_config_aneg, 2591 .aneg_done = &genphy_aneg_done, 2592 .read_status = &vsc85xx_read_status, 2593 .handle_interrupt = &vsc8584_handle_interrupt, 2594 .config_intr = &vsc85xx_config_intr, 2595 .suspend = &genphy_suspend, 2596 .resume = &genphy_resume, 2597 .probe = &vsc8584_probe, 2598 .get_tunable = &vsc85xx_get_tunable, 2599 .set_tunable = &vsc85xx_set_tunable, 2600 .read_page = &vsc85xx_phy_read_page, 2601 .write_page = &vsc85xx_phy_write_page, 2602 .get_sset_count = &vsc85xx_get_sset_count, 2603 .get_strings = &vsc85xx_get_strings, 2604 .get_stats = &vsc85xx_get_stats, 2605 }, 2606 { 2607 .phy_id = PHY_ID_VSC8582, 2608 .name = "Microsemi GE VSC8582 SyncE", 2609 .phy_id_mask = 0xfffffff0, 2610 /* PHY_GBIT_FEATURES */ 2611 .soft_reset = &genphy_soft_reset, 2612 .config_init = &vsc8584_config_init, 2613 .config_aneg = &vsc85xx_config_aneg, 2614 .aneg_done = &genphy_aneg_done, 2615 .read_status = &vsc85xx_read_status, 2616 .handle_interrupt = &vsc8584_handle_interrupt, 2617 .config_intr = &vsc85xx_config_intr, 2618 .suspend = &genphy_suspend, 2619 .resume = &genphy_resume, 2620 .probe = &vsc8584_probe, 2621 .get_tunable = &vsc85xx_get_tunable, 2622 .set_tunable = &vsc85xx_set_tunable, 2623 .read_page = &vsc85xx_phy_read_page, 2624 .write_page = &vsc85xx_phy_write_page, 2625 .get_sset_count = &vsc85xx_get_sset_count, 2626 .get_strings = &vsc85xx_get_strings, 2627 .get_stats = &vsc85xx_get_stats, 2628 }, 2629 { 2630 .phy_id = PHY_ID_VSC8584, 2631 .name = "Microsemi GE VSC8584 SyncE", 2632 .phy_id_mask = 0xfffffff0, 2633 /* PHY_GBIT_FEATURES */ 2634 .soft_reset = &genphy_soft_reset, 2635 .config_init = &vsc8584_config_init, 2636 .config_aneg = &vsc85xx_config_aneg, 2637 .aneg_done = &genphy_aneg_done, 2638 .read_status = &vsc85xx_read_status, 2639 .handle_interrupt = &vsc8584_handle_interrupt, 2640 .config_intr = &vsc85xx_config_intr, 2641 .suspend = &genphy_suspend, 2642 .resume = &genphy_resume, 2643 .probe = &vsc8584_probe, 2644 .get_tunable = &vsc85xx_get_tunable, 2645 .set_tunable = &vsc85xx_set_tunable, 2646 .read_page = &vsc85xx_phy_read_page, 2647 .write_page = &vsc85xx_phy_write_page, 2648 .get_sset_count = &vsc85xx_get_sset_count, 2649 .get_strings = &vsc85xx_get_strings, 2650 .get_stats = &vsc85xx_get_stats, 2651 .link_change_notify = &vsc85xx_link_change_notify, 2652 } 2653 2654 }; 2655 2656 module_phy_driver(vsc85xx_driver); 2657 2658 static struct mdio_device_id __maybe_unused vsc85xx_tbl[] = { 2659 { PHY_ID_VSC8504, 0xfffffff0, }, 2660 { PHY_ID_VSC8514, 0xfffffff0, }, 2661 { PHY_ID_VSC8530, 0xfffffff0, }, 2662 { PHY_ID_VSC8531, 0xfffffff0, }, 2663 { PHY_ID_VSC8540, 0xfffffff0, }, 2664 { PHY_ID_VSC8541, 0xfffffff0, }, 2665 { PHY_ID_VSC8552, 0xfffffff0, }, 2666 { PHY_ID_VSC856X, 0xfffffff0, }, 2667 { PHY_ID_VSC8572, 0xfffffff0, }, 2668 { PHY_ID_VSC8574, 0xfffffff0, }, 2669 { PHY_ID_VSC8575, 0xfffffff0, }, 2670 { PHY_ID_VSC8582, 0xfffffff0, }, 2671 { PHY_ID_VSC8584, 0xfffffff0, }, 2672 { } 2673 }; 2674 2675 MODULE_DEVICE_TABLE(mdio, vsc85xx_tbl); 2676 2677 MODULE_DESCRIPTION("Microsemi VSC85xx PHY driver"); 2678 MODULE_AUTHOR("Nagaraju Lakkaraju"); 2679 MODULE_LICENSE("Dual MIT/GPL"); 2680 2681 MODULE_FIRMWARE(MSCC_VSC8584_REVB_INT8051_FW); 2682 MODULE_FIRMWARE(MSCC_VSC8574_REVB_INT8051_FW); 2683