1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Driver for Aquantia PHY 4 * 5 * Author: Shaohui Xie <Shaohui.Xie@freescale.com> 6 * 7 * Copyright 2015 Freescale Semiconductor, Inc. 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/delay.h> 13 #include <linux/bitfield.h> 14 #include <linux/phy.h> 15 16 #include "aquantia.h" 17 18 #define PHY_ID_AQ1202 0x03a1b445 19 #define PHY_ID_AQ2104 0x03a1b460 20 #define PHY_ID_AQR105 0x03a1b4a2 21 #define PHY_ID_AQR106 0x03a1b4d0 22 #define PHY_ID_AQR107 0x03a1b4e0 23 #define PHY_ID_AQCS109 0x03a1b5c2 24 #define PHY_ID_AQR405 0x03a1b4b0 25 26 #define MDIO_PHYXS_VEND_IF_STATUS 0xe812 27 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK GENMASK(7, 3) 28 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR 0 29 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_XFI 2 30 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_USXGMII 3 31 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_SGMII 6 32 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_OCSGMII 10 33 34 #define MDIO_AN_VEND_PROV 0xc400 35 #define MDIO_AN_VEND_PROV_1000BASET_FULL BIT(15) 36 #define MDIO_AN_VEND_PROV_1000BASET_HALF BIT(14) 37 #define MDIO_AN_VEND_PROV_DOWNSHIFT_EN BIT(4) 38 #define MDIO_AN_VEND_PROV_DOWNSHIFT_MASK GENMASK(3, 0) 39 #define MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT 4 40 41 #define MDIO_AN_TX_VEND_STATUS1 0xc800 42 #define MDIO_AN_TX_VEND_STATUS1_RATE_MASK GENMASK(3, 1) 43 #define MDIO_AN_TX_VEND_STATUS1_10BASET 0 44 #define MDIO_AN_TX_VEND_STATUS1_100BASETX 1 45 #define MDIO_AN_TX_VEND_STATUS1_1000BASET 2 46 #define MDIO_AN_TX_VEND_STATUS1_10GBASET 3 47 #define MDIO_AN_TX_VEND_STATUS1_2500BASET 4 48 #define MDIO_AN_TX_VEND_STATUS1_5000BASET 5 49 #define MDIO_AN_TX_VEND_STATUS1_FULL_DUPLEX BIT(0) 50 51 #define MDIO_AN_TX_VEND_INT_STATUS1 0xcc00 52 #define MDIO_AN_TX_VEND_INT_STATUS1_DOWNSHIFT BIT(1) 53 54 #define MDIO_AN_TX_VEND_INT_STATUS2 0xcc01 55 56 #define MDIO_AN_TX_VEND_INT_MASK2 0xd401 57 #define MDIO_AN_TX_VEND_INT_MASK2_LINK BIT(0) 58 59 #define MDIO_AN_RX_LP_STAT1 0xe820 60 #define MDIO_AN_RX_LP_STAT1_1000BASET_FULL BIT(15) 61 #define MDIO_AN_RX_LP_STAT1_1000BASET_HALF BIT(14) 62 #define MDIO_AN_RX_LP_STAT1_SHORT_REACH BIT(13) 63 #define MDIO_AN_RX_LP_STAT1_AQRATE_DOWNSHIFT BIT(12) 64 #define MDIO_AN_RX_LP_STAT1_AQ_PHY BIT(2) 65 66 #define MDIO_AN_RX_LP_STAT4 0xe823 67 #define MDIO_AN_RX_LP_STAT4_FW_MAJOR GENMASK(15, 8) 68 #define MDIO_AN_RX_LP_STAT4_FW_MINOR GENMASK(7, 0) 69 70 #define MDIO_AN_RX_VEND_STAT3 0xe832 71 #define MDIO_AN_RX_VEND_STAT3_AFR BIT(0) 72 73 /* MDIO_MMD_C22EXT */ 74 #define MDIO_C22EXT_STAT_SGMII_RX_GOOD_FRAMES 0xd292 75 #define MDIO_C22EXT_STAT_SGMII_RX_BAD_FRAMES 0xd294 76 #define MDIO_C22EXT_STAT_SGMII_RX_FALSE_CARRIER 0xd297 77 #define MDIO_C22EXT_STAT_SGMII_TX_GOOD_FRAMES 0xd313 78 #define MDIO_C22EXT_STAT_SGMII_TX_BAD_FRAMES 0xd315 79 #define MDIO_C22EXT_STAT_SGMII_TX_FALSE_CARRIER 0xd317 80 #define MDIO_C22EXT_STAT_SGMII_TX_COLLISIONS 0xd318 81 #define MDIO_C22EXT_STAT_SGMII_TX_LINE_COLLISIONS 0xd319 82 #define MDIO_C22EXT_STAT_SGMII_TX_FRAME_ALIGN_ERR 0xd31a 83 #define MDIO_C22EXT_STAT_SGMII_TX_RUNT_FRAMES 0xd31b 84 85 /* Vendor specific 1, MDIO_MMD_VEND1 */ 86 #define VEND1_GLOBAL_FW_ID 0x0020 87 #define VEND1_GLOBAL_FW_ID_MAJOR GENMASK(15, 8) 88 #define VEND1_GLOBAL_FW_ID_MINOR GENMASK(7, 0) 89 90 #define VEND1_GLOBAL_RSVD_STAT1 0xc885 91 #define VEND1_GLOBAL_RSVD_STAT1_FW_BUILD_ID GENMASK(7, 4) 92 #define VEND1_GLOBAL_RSVD_STAT1_PROV_ID GENMASK(3, 0) 93 94 #define VEND1_GLOBAL_RSVD_STAT9 0xc88d 95 #define VEND1_GLOBAL_RSVD_STAT9_MODE GENMASK(7, 0) 96 #define VEND1_GLOBAL_RSVD_STAT9_1000BT2 0x23 97 98 #define VEND1_GLOBAL_INT_STD_STATUS 0xfc00 99 #define VEND1_GLOBAL_INT_VEND_STATUS 0xfc01 100 101 #define VEND1_GLOBAL_INT_STD_MASK 0xff00 102 #define VEND1_GLOBAL_INT_STD_MASK_PMA1 BIT(15) 103 #define VEND1_GLOBAL_INT_STD_MASK_PMA2 BIT(14) 104 #define VEND1_GLOBAL_INT_STD_MASK_PCS1 BIT(13) 105 #define VEND1_GLOBAL_INT_STD_MASK_PCS2 BIT(12) 106 #define VEND1_GLOBAL_INT_STD_MASK_PCS3 BIT(11) 107 #define VEND1_GLOBAL_INT_STD_MASK_PHY_XS1 BIT(10) 108 #define VEND1_GLOBAL_INT_STD_MASK_PHY_XS2 BIT(9) 109 #define VEND1_GLOBAL_INT_STD_MASK_AN1 BIT(8) 110 #define VEND1_GLOBAL_INT_STD_MASK_AN2 BIT(7) 111 #define VEND1_GLOBAL_INT_STD_MASK_GBE BIT(6) 112 #define VEND1_GLOBAL_INT_STD_MASK_ALL BIT(0) 113 114 #define VEND1_GLOBAL_INT_VEND_MASK 0xff01 115 #define VEND1_GLOBAL_INT_VEND_MASK_PMA BIT(15) 116 #define VEND1_GLOBAL_INT_VEND_MASK_PCS BIT(14) 117 #define VEND1_GLOBAL_INT_VEND_MASK_PHY_XS BIT(13) 118 #define VEND1_GLOBAL_INT_VEND_MASK_AN BIT(12) 119 #define VEND1_GLOBAL_INT_VEND_MASK_GBE BIT(11) 120 #define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL1 BIT(2) 121 #define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL2 BIT(1) 122 #define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL3 BIT(0) 123 124 struct aqr107_hw_stat { 125 const char *name; 126 int reg; 127 int size; 128 }; 129 130 #define SGMII_STAT(n, r, s) { n, MDIO_C22EXT_STAT_SGMII_ ## r, s } 131 static const struct aqr107_hw_stat aqr107_hw_stats[] = { 132 SGMII_STAT("sgmii_rx_good_frames", RX_GOOD_FRAMES, 26), 133 SGMII_STAT("sgmii_rx_bad_frames", RX_BAD_FRAMES, 26), 134 SGMII_STAT("sgmii_rx_false_carrier_events", RX_FALSE_CARRIER, 8), 135 SGMII_STAT("sgmii_tx_good_frames", TX_GOOD_FRAMES, 26), 136 SGMII_STAT("sgmii_tx_bad_frames", TX_BAD_FRAMES, 26), 137 SGMII_STAT("sgmii_tx_false_carrier_events", TX_FALSE_CARRIER, 8), 138 SGMII_STAT("sgmii_tx_collisions", TX_COLLISIONS, 8), 139 SGMII_STAT("sgmii_tx_line_collisions", TX_LINE_COLLISIONS, 8), 140 SGMII_STAT("sgmii_tx_frame_alignment_err", TX_FRAME_ALIGN_ERR, 16), 141 SGMII_STAT("sgmii_tx_runt_frames", TX_RUNT_FRAMES, 22), 142 }; 143 #define AQR107_SGMII_STAT_SZ ARRAY_SIZE(aqr107_hw_stats) 144 145 struct aqr107_priv { 146 u64 sgmii_stats[AQR107_SGMII_STAT_SZ]; 147 }; 148 149 static int aqr107_get_sset_count(struct phy_device *phydev) 150 { 151 return AQR107_SGMII_STAT_SZ; 152 } 153 154 static void aqr107_get_strings(struct phy_device *phydev, u8 *data) 155 { 156 int i; 157 158 for (i = 0; i < AQR107_SGMII_STAT_SZ; i++) 159 strscpy(data + i * ETH_GSTRING_LEN, aqr107_hw_stats[i].name, 160 ETH_GSTRING_LEN); 161 } 162 163 static u64 aqr107_get_stat(struct phy_device *phydev, int index) 164 { 165 const struct aqr107_hw_stat *stat = aqr107_hw_stats + index; 166 int len_l = min(stat->size, 16); 167 int len_h = stat->size - len_l; 168 u64 ret; 169 int val; 170 171 val = phy_read_mmd(phydev, MDIO_MMD_C22EXT, stat->reg); 172 if (val < 0) 173 return U64_MAX; 174 175 ret = val & GENMASK(len_l - 1, 0); 176 if (len_h) { 177 val = phy_read_mmd(phydev, MDIO_MMD_C22EXT, stat->reg + 1); 178 if (val < 0) 179 return U64_MAX; 180 181 ret += (val & GENMASK(len_h - 1, 0)) << 16; 182 } 183 184 return ret; 185 } 186 187 static void aqr107_get_stats(struct phy_device *phydev, 188 struct ethtool_stats *stats, u64 *data) 189 { 190 struct aqr107_priv *priv = phydev->priv; 191 u64 val; 192 int i; 193 194 for (i = 0; i < AQR107_SGMII_STAT_SZ; i++) { 195 val = aqr107_get_stat(phydev, i); 196 if (val == U64_MAX) 197 phydev_err(phydev, "Reading HW Statistics failed for %s\n", 198 aqr107_hw_stats[i].name); 199 else 200 priv->sgmii_stats[i] += val; 201 202 data[i] = priv->sgmii_stats[i]; 203 } 204 } 205 206 static int aqr_config_aneg(struct phy_device *phydev) 207 { 208 bool changed = false; 209 u16 reg; 210 int ret; 211 212 if (phydev->autoneg == AUTONEG_DISABLE) 213 return genphy_c45_pma_setup_forced(phydev); 214 215 ret = genphy_c45_an_config_aneg(phydev); 216 if (ret < 0) 217 return ret; 218 if (ret > 0) 219 changed = true; 220 221 /* Clause 45 has no standardized support for 1000BaseT, therefore 222 * use vendor registers for this mode. 223 */ 224 reg = 0; 225 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 226 phydev->advertising)) 227 reg |= MDIO_AN_VEND_PROV_1000BASET_FULL; 228 229 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, 230 phydev->advertising)) 231 reg |= MDIO_AN_VEND_PROV_1000BASET_HALF; 232 233 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV, 234 MDIO_AN_VEND_PROV_1000BASET_HALF | 235 MDIO_AN_VEND_PROV_1000BASET_FULL, reg); 236 if (ret < 0) 237 return ret; 238 if (ret > 0) 239 changed = true; 240 241 return genphy_c45_check_and_restart_aneg(phydev, changed); 242 } 243 244 static int aqr_config_intr(struct phy_device *phydev) 245 { 246 bool en = phydev->interrupts == PHY_INTERRUPT_ENABLED; 247 int err; 248 249 err = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_INT_MASK2, 250 en ? MDIO_AN_TX_VEND_INT_MASK2_LINK : 0); 251 if (err < 0) 252 return err; 253 254 err = phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_INT_STD_MASK, 255 en ? VEND1_GLOBAL_INT_STD_MASK_ALL : 0); 256 if (err < 0) 257 return err; 258 259 return phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_INT_VEND_MASK, 260 en ? VEND1_GLOBAL_INT_VEND_MASK_GLOBAL3 | 261 VEND1_GLOBAL_INT_VEND_MASK_AN : 0); 262 } 263 264 static int aqr_ack_interrupt(struct phy_device *phydev) 265 { 266 int reg; 267 268 reg = phy_read_mmd(phydev, MDIO_MMD_AN, 269 MDIO_AN_TX_VEND_INT_STATUS2); 270 return (reg < 0) ? reg : 0; 271 } 272 273 static int aqr_read_status(struct phy_device *phydev) 274 { 275 int val; 276 277 if (phydev->autoneg == AUTONEG_ENABLE) { 278 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_LP_STAT1); 279 if (val < 0) 280 return val; 281 282 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 283 phydev->lp_advertising, 284 val & MDIO_AN_RX_LP_STAT1_1000BASET_FULL); 285 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, 286 phydev->lp_advertising, 287 val & MDIO_AN_RX_LP_STAT1_1000BASET_HALF); 288 } 289 290 return genphy_c45_read_status(phydev); 291 } 292 293 static int aqr107_read_downshift_event(struct phy_device *phydev) 294 { 295 int val; 296 297 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_INT_STATUS1); 298 if (val < 0) 299 return val; 300 301 return !!(val & MDIO_AN_TX_VEND_INT_STATUS1_DOWNSHIFT); 302 } 303 304 static int aqr107_read_rate(struct phy_device *phydev) 305 { 306 int val; 307 308 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_STATUS1); 309 if (val < 0) 310 return val; 311 312 switch (FIELD_GET(MDIO_AN_TX_VEND_STATUS1_RATE_MASK, val)) { 313 case MDIO_AN_TX_VEND_STATUS1_10BASET: 314 phydev->speed = SPEED_10; 315 break; 316 case MDIO_AN_TX_VEND_STATUS1_100BASETX: 317 phydev->speed = SPEED_100; 318 break; 319 case MDIO_AN_TX_VEND_STATUS1_1000BASET: 320 phydev->speed = SPEED_1000; 321 break; 322 case MDIO_AN_TX_VEND_STATUS1_2500BASET: 323 phydev->speed = SPEED_2500; 324 break; 325 case MDIO_AN_TX_VEND_STATUS1_5000BASET: 326 phydev->speed = SPEED_5000; 327 break; 328 case MDIO_AN_TX_VEND_STATUS1_10GBASET: 329 phydev->speed = SPEED_10000; 330 break; 331 default: 332 phydev->speed = SPEED_UNKNOWN; 333 break; 334 } 335 336 if (val & MDIO_AN_TX_VEND_STATUS1_FULL_DUPLEX) 337 phydev->duplex = DUPLEX_FULL; 338 else 339 phydev->duplex = DUPLEX_HALF; 340 341 return 0; 342 } 343 344 static int aqr107_read_status(struct phy_device *phydev) 345 { 346 int val, ret; 347 348 ret = aqr_read_status(phydev); 349 if (ret) 350 return ret; 351 352 if (!phydev->link || phydev->autoneg == AUTONEG_DISABLE) 353 return 0; 354 355 val = phy_read_mmd(phydev, MDIO_MMD_PHYXS, MDIO_PHYXS_VEND_IF_STATUS); 356 if (val < 0) 357 return val; 358 359 switch (FIELD_GET(MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK, val)) { 360 case MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR: 361 case MDIO_PHYXS_VEND_IF_STATUS_TYPE_XFI: 362 phydev->interface = PHY_INTERFACE_MODE_10GKR; 363 break; 364 case MDIO_PHYXS_VEND_IF_STATUS_TYPE_USXGMII: 365 phydev->interface = PHY_INTERFACE_MODE_USXGMII; 366 break; 367 case MDIO_PHYXS_VEND_IF_STATUS_TYPE_SGMII: 368 phydev->interface = PHY_INTERFACE_MODE_SGMII; 369 break; 370 case MDIO_PHYXS_VEND_IF_STATUS_TYPE_OCSGMII: 371 phydev->interface = PHY_INTERFACE_MODE_2500BASEX; 372 break; 373 default: 374 phydev->interface = PHY_INTERFACE_MODE_NA; 375 break; 376 } 377 378 val = aqr107_read_downshift_event(phydev); 379 if (val <= 0) 380 return val; 381 382 phydev_warn(phydev, "Downshift occurred! Cabling may be defective.\n"); 383 384 /* Read downshifted rate from vendor register */ 385 return aqr107_read_rate(phydev); 386 } 387 388 static int aqr107_get_downshift(struct phy_device *phydev, u8 *data) 389 { 390 int val, cnt, enable; 391 392 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV); 393 if (val < 0) 394 return val; 395 396 enable = FIELD_GET(MDIO_AN_VEND_PROV_DOWNSHIFT_EN, val); 397 cnt = FIELD_GET(MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, val); 398 399 *data = enable && cnt ? cnt : DOWNSHIFT_DEV_DISABLE; 400 401 return 0; 402 } 403 404 static int aqr107_set_downshift(struct phy_device *phydev, u8 cnt) 405 { 406 int val = 0; 407 408 if (!FIELD_FIT(MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, cnt)) 409 return -E2BIG; 410 411 if (cnt != DOWNSHIFT_DEV_DISABLE) { 412 val = MDIO_AN_VEND_PROV_DOWNSHIFT_EN; 413 val |= FIELD_PREP(MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, cnt); 414 } 415 416 return phy_modify_mmd(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV, 417 MDIO_AN_VEND_PROV_DOWNSHIFT_EN | 418 MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, val); 419 } 420 421 static int aqr107_get_tunable(struct phy_device *phydev, 422 struct ethtool_tunable *tuna, void *data) 423 { 424 switch (tuna->id) { 425 case ETHTOOL_PHY_DOWNSHIFT: 426 return aqr107_get_downshift(phydev, data); 427 default: 428 return -EOPNOTSUPP; 429 } 430 } 431 432 static int aqr107_set_tunable(struct phy_device *phydev, 433 struct ethtool_tunable *tuna, const void *data) 434 { 435 switch (tuna->id) { 436 case ETHTOOL_PHY_DOWNSHIFT: 437 return aqr107_set_downshift(phydev, *(const u8 *)data); 438 default: 439 return -EOPNOTSUPP; 440 } 441 } 442 443 /* If we configure settings whilst firmware is still initializing the chip, 444 * then these settings may be overwritten. Therefore make sure chip 445 * initialization has completed. Use presence of the firmware ID as 446 * indicator for initialization having completed. 447 * The chip also provides a "reset completed" bit, but it's cleared after 448 * read. Therefore function would time out if called again. 449 */ 450 static int aqr107_wait_reset_complete(struct phy_device *phydev) 451 { 452 int val, retries = 100; 453 454 do { 455 val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_FW_ID); 456 if (val < 0) 457 return val; 458 msleep(20); 459 } while (!val && --retries); 460 461 return val ? 0 : -ETIMEDOUT; 462 } 463 464 static void aqr107_chip_info(struct phy_device *phydev) 465 { 466 u8 fw_major, fw_minor, build_id, prov_id; 467 int val; 468 469 val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_FW_ID); 470 if (val < 0) 471 return; 472 473 fw_major = FIELD_GET(VEND1_GLOBAL_FW_ID_MAJOR, val); 474 fw_minor = FIELD_GET(VEND1_GLOBAL_FW_ID_MINOR, val); 475 476 val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_RSVD_STAT1); 477 if (val < 0) 478 return; 479 480 build_id = FIELD_GET(VEND1_GLOBAL_RSVD_STAT1_FW_BUILD_ID, val); 481 prov_id = FIELD_GET(VEND1_GLOBAL_RSVD_STAT1_PROV_ID, val); 482 483 phydev_dbg(phydev, "FW %u.%u, Build %u, Provisioning %u\n", 484 fw_major, fw_minor, build_id, prov_id); 485 } 486 487 static int aqr107_config_init(struct phy_device *phydev) 488 { 489 int ret; 490 491 /* Check that the PHY interface type is compatible */ 492 if (phydev->interface != PHY_INTERFACE_MODE_SGMII && 493 phydev->interface != PHY_INTERFACE_MODE_2500BASEX && 494 phydev->interface != PHY_INTERFACE_MODE_XGMII && 495 phydev->interface != PHY_INTERFACE_MODE_USXGMII && 496 phydev->interface != PHY_INTERFACE_MODE_10GKR) 497 return -ENODEV; 498 499 WARN(phydev->interface == PHY_INTERFACE_MODE_XGMII, 500 "Your devicetree is out of date, please update it. The AQR107 family doesn't support XGMII, maybe you mean USXGMII.\n"); 501 502 ret = aqr107_wait_reset_complete(phydev); 503 if (!ret) 504 aqr107_chip_info(phydev); 505 506 /* ensure that a latched downshift event is cleared */ 507 aqr107_read_downshift_event(phydev); 508 509 return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT); 510 } 511 512 static int aqcs109_config_init(struct phy_device *phydev) 513 { 514 int ret; 515 516 /* Check that the PHY interface type is compatible */ 517 if (phydev->interface != PHY_INTERFACE_MODE_SGMII && 518 phydev->interface != PHY_INTERFACE_MODE_2500BASEX) 519 return -ENODEV; 520 521 ret = aqr107_wait_reset_complete(phydev); 522 if (!ret) 523 aqr107_chip_info(phydev); 524 525 /* AQCS109 belongs to a chip family partially supporting 10G and 5G. 526 * PMA speed ability bits are the same for all members of the family, 527 * AQCS109 however supports speeds up to 2.5G only. 528 */ 529 ret = phy_set_max_speed(phydev, SPEED_2500); 530 if (ret) 531 return ret; 532 533 /* ensure that a latched downshift event is cleared */ 534 aqr107_read_downshift_event(phydev); 535 536 return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT); 537 } 538 539 static void aqr107_link_change_notify(struct phy_device *phydev) 540 { 541 u8 fw_major, fw_minor; 542 bool downshift, short_reach, afr; 543 int mode, val; 544 545 if (phydev->state != PHY_RUNNING || phydev->autoneg == AUTONEG_DISABLE) 546 return; 547 548 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_LP_STAT1); 549 /* call failed or link partner is no Aquantia PHY */ 550 if (val < 0 || !(val & MDIO_AN_RX_LP_STAT1_AQ_PHY)) 551 return; 552 553 short_reach = val & MDIO_AN_RX_LP_STAT1_SHORT_REACH; 554 downshift = val & MDIO_AN_RX_LP_STAT1_AQRATE_DOWNSHIFT; 555 556 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_LP_STAT4); 557 if (val < 0) 558 return; 559 560 fw_major = FIELD_GET(MDIO_AN_RX_LP_STAT4_FW_MAJOR, val); 561 fw_minor = FIELD_GET(MDIO_AN_RX_LP_STAT4_FW_MINOR, val); 562 563 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_VEND_STAT3); 564 if (val < 0) 565 return; 566 567 afr = val & MDIO_AN_RX_VEND_STAT3_AFR; 568 569 phydev_dbg(phydev, "Link partner is Aquantia PHY, FW %u.%u%s%s%s\n", 570 fw_major, fw_minor, 571 short_reach ? ", short reach mode" : "", 572 downshift ? ", fast-retrain downshift advertised" : "", 573 afr ? ", fast reframe advertised" : ""); 574 575 val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_RSVD_STAT9); 576 if (val < 0) 577 return; 578 579 mode = FIELD_GET(VEND1_GLOBAL_RSVD_STAT9_MODE, val); 580 if (mode == VEND1_GLOBAL_RSVD_STAT9_1000BT2) 581 phydev_info(phydev, "Aquantia 1000Base-T2 mode active\n"); 582 } 583 584 static int aqr107_suspend(struct phy_device *phydev) 585 { 586 return phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MDIO_CTRL1, 587 MDIO_CTRL1_LPOWER); 588 } 589 590 static int aqr107_resume(struct phy_device *phydev) 591 { 592 return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MDIO_CTRL1, 593 MDIO_CTRL1_LPOWER); 594 } 595 596 static int aqr107_probe(struct phy_device *phydev) 597 { 598 phydev->priv = devm_kzalloc(&phydev->mdio.dev, 599 sizeof(struct aqr107_priv), GFP_KERNEL); 600 if (!phydev->priv) 601 return -ENOMEM; 602 603 return aqr_hwmon_probe(phydev); 604 } 605 606 static struct phy_driver aqr_driver[] = { 607 { 608 PHY_ID_MATCH_MODEL(PHY_ID_AQ1202), 609 .name = "Aquantia AQ1202", 610 .config_aneg = aqr_config_aneg, 611 .config_intr = aqr_config_intr, 612 .ack_interrupt = aqr_ack_interrupt, 613 .read_status = aqr_read_status, 614 }, 615 { 616 PHY_ID_MATCH_MODEL(PHY_ID_AQ2104), 617 .name = "Aquantia AQ2104", 618 .config_aneg = aqr_config_aneg, 619 .config_intr = aqr_config_intr, 620 .ack_interrupt = aqr_ack_interrupt, 621 .read_status = aqr_read_status, 622 }, 623 { 624 PHY_ID_MATCH_MODEL(PHY_ID_AQR105), 625 .name = "Aquantia AQR105", 626 .config_aneg = aqr_config_aneg, 627 .config_intr = aqr_config_intr, 628 .ack_interrupt = aqr_ack_interrupt, 629 .read_status = aqr_read_status, 630 .suspend = aqr107_suspend, 631 .resume = aqr107_resume, 632 }, 633 { 634 PHY_ID_MATCH_MODEL(PHY_ID_AQR106), 635 .name = "Aquantia AQR106", 636 .config_aneg = aqr_config_aneg, 637 .config_intr = aqr_config_intr, 638 .ack_interrupt = aqr_ack_interrupt, 639 .read_status = aqr_read_status, 640 }, 641 { 642 PHY_ID_MATCH_MODEL(PHY_ID_AQR107), 643 .name = "Aquantia AQR107", 644 .probe = aqr107_probe, 645 .config_init = aqr107_config_init, 646 .config_aneg = aqr_config_aneg, 647 .config_intr = aqr_config_intr, 648 .ack_interrupt = aqr_ack_interrupt, 649 .read_status = aqr107_read_status, 650 .get_tunable = aqr107_get_tunable, 651 .set_tunable = aqr107_set_tunable, 652 .suspend = aqr107_suspend, 653 .resume = aqr107_resume, 654 .get_sset_count = aqr107_get_sset_count, 655 .get_strings = aqr107_get_strings, 656 .get_stats = aqr107_get_stats, 657 .link_change_notify = aqr107_link_change_notify, 658 }, 659 { 660 PHY_ID_MATCH_MODEL(PHY_ID_AQCS109), 661 .name = "Aquantia AQCS109", 662 .probe = aqr107_probe, 663 .config_init = aqcs109_config_init, 664 .config_aneg = aqr_config_aneg, 665 .config_intr = aqr_config_intr, 666 .ack_interrupt = aqr_ack_interrupt, 667 .read_status = aqr107_read_status, 668 .get_tunable = aqr107_get_tunable, 669 .set_tunable = aqr107_set_tunable, 670 .suspend = aqr107_suspend, 671 .resume = aqr107_resume, 672 .get_sset_count = aqr107_get_sset_count, 673 .get_strings = aqr107_get_strings, 674 .get_stats = aqr107_get_stats, 675 .link_change_notify = aqr107_link_change_notify, 676 }, 677 { 678 PHY_ID_MATCH_MODEL(PHY_ID_AQR405), 679 .name = "Aquantia AQR405", 680 .config_aneg = aqr_config_aneg, 681 .config_intr = aqr_config_intr, 682 .ack_interrupt = aqr_ack_interrupt, 683 .read_status = aqr_read_status, 684 }, 685 }; 686 687 module_phy_driver(aqr_driver); 688 689 static struct mdio_device_id __maybe_unused aqr_tbl[] = { 690 { PHY_ID_MATCH_MODEL(PHY_ID_AQ1202) }, 691 { PHY_ID_MATCH_MODEL(PHY_ID_AQ2104) }, 692 { PHY_ID_MATCH_MODEL(PHY_ID_AQR105) }, 693 { PHY_ID_MATCH_MODEL(PHY_ID_AQR106) }, 694 { PHY_ID_MATCH_MODEL(PHY_ID_AQR107) }, 695 { PHY_ID_MATCH_MODEL(PHY_ID_AQCS109) }, 696 { PHY_ID_MATCH_MODEL(PHY_ID_AQR405) }, 697 { } 698 }; 699 700 MODULE_DEVICE_TABLE(mdio, aqr_tbl); 701 702 MODULE_DESCRIPTION("Aquantia PHY driver"); 703 MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>"); 704 MODULE_LICENSE("GPL v2"); 705