1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * drivers/net/phy/micrel.c 4 * 5 * Driver for Micrel PHYs 6 * 7 * Author: David J. Choi 8 * 9 * Copyright (c) 2010-2013 Micrel, Inc. 10 * Copyright (c) 2014 Johan Hovold <johan@kernel.org> 11 * 12 * Support : Micrel Phys: 13 * Giga phys: ksz9021, ksz9031, ksz9131 14 * 100/10 Phys : ksz8001, ksz8721, ksz8737, ksz8041 15 * ksz8021, ksz8031, ksz8051, 16 * ksz8081, ksz8091, 17 * ksz8061, 18 * Switch : ksz8873, ksz886x 19 * ksz9477 20 */ 21 22 #include <linux/bitfield.h> 23 #include <linux/ethtool_netlink.h> 24 #include <linux/kernel.h> 25 #include <linux/module.h> 26 #include <linux/phy.h> 27 #include <linux/micrel_phy.h> 28 #include <linux/of.h> 29 #include <linux/clk.h> 30 #include <linux/delay.h> 31 32 /* Operation Mode Strap Override */ 33 #define MII_KSZPHY_OMSO 0x16 34 #define KSZPHY_OMSO_FACTORY_TEST BIT(15) 35 #define KSZPHY_OMSO_B_CAST_OFF BIT(9) 36 #define KSZPHY_OMSO_NAND_TREE_ON BIT(5) 37 #define KSZPHY_OMSO_RMII_OVERRIDE BIT(1) 38 #define KSZPHY_OMSO_MII_OVERRIDE BIT(0) 39 40 /* general Interrupt control/status reg in vendor specific block. */ 41 #define MII_KSZPHY_INTCS 0x1B 42 #define KSZPHY_INTCS_JABBER BIT(15) 43 #define KSZPHY_INTCS_RECEIVE_ERR BIT(14) 44 #define KSZPHY_INTCS_PAGE_RECEIVE BIT(13) 45 #define KSZPHY_INTCS_PARELLEL BIT(12) 46 #define KSZPHY_INTCS_LINK_PARTNER_ACK BIT(11) 47 #define KSZPHY_INTCS_LINK_DOWN BIT(10) 48 #define KSZPHY_INTCS_REMOTE_FAULT BIT(9) 49 #define KSZPHY_INTCS_LINK_UP BIT(8) 50 #define KSZPHY_INTCS_ALL (KSZPHY_INTCS_LINK_UP |\ 51 KSZPHY_INTCS_LINK_DOWN) 52 #define KSZPHY_INTCS_LINK_DOWN_STATUS BIT(2) 53 #define KSZPHY_INTCS_LINK_UP_STATUS BIT(0) 54 #define KSZPHY_INTCS_STATUS (KSZPHY_INTCS_LINK_DOWN_STATUS |\ 55 KSZPHY_INTCS_LINK_UP_STATUS) 56 57 /* LinkMD Control/Status */ 58 #define KSZ8081_LMD 0x1d 59 #define KSZ8081_LMD_ENABLE_TEST BIT(15) 60 #define KSZ8081_LMD_STAT_NORMAL 0 61 #define KSZ8081_LMD_STAT_OPEN 1 62 #define KSZ8081_LMD_STAT_SHORT 2 63 #define KSZ8081_LMD_STAT_FAIL 3 64 #define KSZ8081_LMD_STAT_MASK GENMASK(14, 13) 65 /* Short cable (<10 meter) has been detected by LinkMD */ 66 #define KSZ8081_LMD_SHORT_INDICATOR BIT(12) 67 #define KSZ8081_LMD_DELTA_TIME_MASK GENMASK(8, 0) 68 69 /* Lan8814 general Interrupt control/status reg in GPHY specific block. */ 70 #define LAN8814_INTC 0x18 71 #define LAN8814_INTS 0x1B 72 73 #define LAN8814_INT_LINK_DOWN BIT(2) 74 #define LAN8814_INT_LINK_UP BIT(0) 75 #define LAN8814_INT_LINK (LAN8814_INT_LINK_UP |\ 76 LAN8814_INT_LINK_DOWN) 77 78 #define LAN8814_INTR_CTRL_REG 0x34 79 #define LAN8814_INTR_CTRL_REG_POLARITY BIT(1) 80 #define LAN8814_INTR_CTRL_REG_INTR_ENABLE BIT(0) 81 82 /* PHY Control 1 */ 83 #define MII_KSZPHY_CTRL_1 0x1e 84 #define KSZ8081_CTRL1_MDIX_STAT BIT(4) 85 86 /* PHY Control 2 / PHY Control (if no PHY Control 1) */ 87 #define MII_KSZPHY_CTRL_2 0x1f 88 #define MII_KSZPHY_CTRL MII_KSZPHY_CTRL_2 89 /* bitmap of PHY register to set interrupt mode */ 90 #define KSZ8081_CTRL2_HP_MDIX BIT(15) 91 #define KSZ8081_CTRL2_MDI_MDI_X_SELECT BIT(14) 92 #define KSZ8081_CTRL2_DISABLE_AUTO_MDIX BIT(13) 93 #define KSZ8081_CTRL2_FORCE_LINK BIT(11) 94 #define KSZ8081_CTRL2_POWER_SAVING BIT(10) 95 #define KSZPHY_CTRL_INT_ACTIVE_HIGH BIT(9) 96 #define KSZPHY_RMII_REF_CLK_SEL BIT(7) 97 98 /* Write/read to/from extended registers */ 99 #define MII_KSZPHY_EXTREG 0x0b 100 #define KSZPHY_EXTREG_WRITE 0x8000 101 102 #define MII_KSZPHY_EXTREG_WRITE 0x0c 103 #define MII_KSZPHY_EXTREG_READ 0x0d 104 105 /* Extended registers */ 106 #define MII_KSZPHY_CLK_CONTROL_PAD_SKEW 0x104 107 #define MII_KSZPHY_RX_DATA_PAD_SKEW 0x105 108 #define MII_KSZPHY_TX_DATA_PAD_SKEW 0x106 109 110 #define PS_TO_REG 200 111 112 struct kszphy_hw_stat { 113 const char *string; 114 u8 reg; 115 u8 bits; 116 }; 117 118 static struct kszphy_hw_stat kszphy_hw_stats[] = { 119 { "phy_receive_errors", 21, 16}, 120 { "phy_idle_errors", 10, 8 }, 121 }; 122 123 struct kszphy_type { 124 u32 led_mode_reg; 125 u16 interrupt_level_mask; 126 bool has_broadcast_disable; 127 bool has_nand_tree_disable; 128 bool has_rmii_ref_clk_sel; 129 }; 130 131 struct kszphy_priv { 132 const struct kszphy_type *type; 133 int led_mode; 134 bool rmii_ref_clk_sel; 135 bool rmii_ref_clk_sel_val; 136 u64 stats[ARRAY_SIZE(kszphy_hw_stats)]; 137 }; 138 139 static const struct kszphy_type ksz8021_type = { 140 .led_mode_reg = MII_KSZPHY_CTRL_2, 141 .has_broadcast_disable = true, 142 .has_nand_tree_disable = true, 143 .has_rmii_ref_clk_sel = true, 144 }; 145 146 static const struct kszphy_type ksz8041_type = { 147 .led_mode_reg = MII_KSZPHY_CTRL_1, 148 }; 149 150 static const struct kszphy_type ksz8051_type = { 151 .led_mode_reg = MII_KSZPHY_CTRL_2, 152 .has_nand_tree_disable = true, 153 }; 154 155 static const struct kszphy_type ksz8081_type = { 156 .led_mode_reg = MII_KSZPHY_CTRL_2, 157 .has_broadcast_disable = true, 158 .has_nand_tree_disable = true, 159 .has_rmii_ref_clk_sel = true, 160 }; 161 162 static const struct kszphy_type ks8737_type = { 163 .interrupt_level_mask = BIT(14), 164 }; 165 166 static const struct kszphy_type ksz9021_type = { 167 .interrupt_level_mask = BIT(14), 168 }; 169 170 static int kszphy_extended_write(struct phy_device *phydev, 171 u32 regnum, u16 val) 172 { 173 phy_write(phydev, MII_KSZPHY_EXTREG, KSZPHY_EXTREG_WRITE | regnum); 174 return phy_write(phydev, MII_KSZPHY_EXTREG_WRITE, val); 175 } 176 177 static int kszphy_extended_read(struct phy_device *phydev, 178 u32 regnum) 179 { 180 phy_write(phydev, MII_KSZPHY_EXTREG, regnum); 181 return phy_read(phydev, MII_KSZPHY_EXTREG_READ); 182 } 183 184 static int kszphy_ack_interrupt(struct phy_device *phydev) 185 { 186 /* bit[7..0] int status, which is a read and clear register. */ 187 int rc; 188 189 rc = phy_read(phydev, MII_KSZPHY_INTCS); 190 191 return (rc < 0) ? rc : 0; 192 } 193 194 static int kszphy_config_intr(struct phy_device *phydev) 195 { 196 const struct kszphy_type *type = phydev->drv->driver_data; 197 int temp, err; 198 u16 mask; 199 200 if (type && type->interrupt_level_mask) 201 mask = type->interrupt_level_mask; 202 else 203 mask = KSZPHY_CTRL_INT_ACTIVE_HIGH; 204 205 /* set the interrupt pin active low */ 206 temp = phy_read(phydev, MII_KSZPHY_CTRL); 207 if (temp < 0) 208 return temp; 209 temp &= ~mask; 210 phy_write(phydev, MII_KSZPHY_CTRL, temp); 211 212 /* enable / disable interrupts */ 213 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { 214 err = kszphy_ack_interrupt(phydev); 215 if (err) 216 return err; 217 218 temp = KSZPHY_INTCS_ALL; 219 err = phy_write(phydev, MII_KSZPHY_INTCS, temp); 220 } else { 221 temp = 0; 222 err = phy_write(phydev, MII_KSZPHY_INTCS, temp); 223 if (err) 224 return err; 225 226 err = kszphy_ack_interrupt(phydev); 227 } 228 229 return err; 230 } 231 232 static irqreturn_t kszphy_handle_interrupt(struct phy_device *phydev) 233 { 234 int irq_status; 235 236 irq_status = phy_read(phydev, MII_KSZPHY_INTCS); 237 if (irq_status < 0) { 238 phy_error(phydev); 239 return IRQ_NONE; 240 } 241 242 if (!(irq_status & KSZPHY_INTCS_STATUS)) 243 return IRQ_NONE; 244 245 phy_trigger_machine(phydev); 246 247 return IRQ_HANDLED; 248 } 249 250 static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val) 251 { 252 int ctrl; 253 254 ctrl = phy_read(phydev, MII_KSZPHY_CTRL); 255 if (ctrl < 0) 256 return ctrl; 257 258 if (val) 259 ctrl |= KSZPHY_RMII_REF_CLK_SEL; 260 else 261 ctrl &= ~KSZPHY_RMII_REF_CLK_SEL; 262 263 return phy_write(phydev, MII_KSZPHY_CTRL, ctrl); 264 } 265 266 static int kszphy_setup_led(struct phy_device *phydev, u32 reg, int val) 267 { 268 int rc, temp, shift; 269 270 switch (reg) { 271 case MII_KSZPHY_CTRL_1: 272 shift = 14; 273 break; 274 case MII_KSZPHY_CTRL_2: 275 shift = 4; 276 break; 277 default: 278 return -EINVAL; 279 } 280 281 temp = phy_read(phydev, reg); 282 if (temp < 0) { 283 rc = temp; 284 goto out; 285 } 286 287 temp &= ~(3 << shift); 288 temp |= val << shift; 289 rc = phy_write(phydev, reg, temp); 290 out: 291 if (rc < 0) 292 phydev_err(phydev, "failed to set led mode\n"); 293 294 return rc; 295 } 296 297 /* Disable PHY address 0 as the broadcast address, so that it can be used as a 298 * unique (non-broadcast) address on a shared bus. 299 */ 300 static int kszphy_broadcast_disable(struct phy_device *phydev) 301 { 302 int ret; 303 304 ret = phy_read(phydev, MII_KSZPHY_OMSO); 305 if (ret < 0) 306 goto out; 307 308 ret = phy_write(phydev, MII_KSZPHY_OMSO, ret | KSZPHY_OMSO_B_CAST_OFF); 309 out: 310 if (ret) 311 phydev_err(phydev, "failed to disable broadcast address\n"); 312 313 return ret; 314 } 315 316 static int kszphy_nand_tree_disable(struct phy_device *phydev) 317 { 318 int ret; 319 320 ret = phy_read(phydev, MII_KSZPHY_OMSO); 321 if (ret < 0) 322 goto out; 323 324 if (!(ret & KSZPHY_OMSO_NAND_TREE_ON)) 325 return 0; 326 327 ret = phy_write(phydev, MII_KSZPHY_OMSO, 328 ret & ~KSZPHY_OMSO_NAND_TREE_ON); 329 out: 330 if (ret) 331 phydev_err(phydev, "failed to disable NAND tree mode\n"); 332 333 return ret; 334 } 335 336 /* Some config bits need to be set again on resume, handle them here. */ 337 static int kszphy_config_reset(struct phy_device *phydev) 338 { 339 struct kszphy_priv *priv = phydev->priv; 340 int ret; 341 342 if (priv->rmii_ref_clk_sel) { 343 ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val); 344 if (ret) { 345 phydev_err(phydev, 346 "failed to set rmii reference clock\n"); 347 return ret; 348 } 349 } 350 351 if (priv->led_mode >= 0) 352 kszphy_setup_led(phydev, priv->type->led_mode_reg, priv->led_mode); 353 354 return 0; 355 } 356 357 static int kszphy_config_init(struct phy_device *phydev) 358 { 359 struct kszphy_priv *priv = phydev->priv; 360 const struct kszphy_type *type; 361 362 if (!priv) 363 return 0; 364 365 type = priv->type; 366 367 if (type->has_broadcast_disable) 368 kszphy_broadcast_disable(phydev); 369 370 if (type->has_nand_tree_disable) 371 kszphy_nand_tree_disable(phydev); 372 373 return kszphy_config_reset(phydev); 374 } 375 376 static int ksz8041_fiber_mode(struct phy_device *phydev) 377 { 378 struct device_node *of_node = phydev->mdio.dev.of_node; 379 380 return of_property_read_bool(of_node, "micrel,fiber-mode"); 381 } 382 383 static int ksz8041_config_init(struct phy_device *phydev) 384 { 385 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; 386 387 /* Limit supported and advertised modes in fiber mode */ 388 if (ksz8041_fiber_mode(phydev)) { 389 phydev->dev_flags |= MICREL_PHY_FXEN; 390 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, mask); 391 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, mask); 392 393 linkmode_and(phydev->supported, phydev->supported, mask); 394 linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, 395 phydev->supported); 396 linkmode_and(phydev->advertising, phydev->advertising, mask); 397 linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, 398 phydev->advertising); 399 phydev->autoneg = AUTONEG_DISABLE; 400 } 401 402 return kszphy_config_init(phydev); 403 } 404 405 static int ksz8041_config_aneg(struct phy_device *phydev) 406 { 407 /* Skip auto-negotiation in fiber mode */ 408 if (phydev->dev_flags & MICREL_PHY_FXEN) { 409 phydev->speed = SPEED_100; 410 return 0; 411 } 412 413 return genphy_config_aneg(phydev); 414 } 415 416 static int ksz8051_ksz8795_match_phy_device(struct phy_device *phydev, 417 const bool ksz_8051) 418 { 419 int ret; 420 421 if ((phydev->phy_id & MICREL_PHY_ID_MASK) != PHY_ID_KSZ8051) 422 return 0; 423 424 ret = phy_read(phydev, MII_BMSR); 425 if (ret < 0) 426 return ret; 427 428 /* KSZ8051 PHY and KSZ8794/KSZ8795/KSZ8765 switch share the same 429 * exact PHY ID. However, they can be told apart by the extended 430 * capability registers presence. The KSZ8051 PHY has them while 431 * the switch does not. 432 */ 433 ret &= BMSR_ERCAP; 434 if (ksz_8051) 435 return ret; 436 else 437 return !ret; 438 } 439 440 static int ksz8051_match_phy_device(struct phy_device *phydev) 441 { 442 return ksz8051_ksz8795_match_phy_device(phydev, true); 443 } 444 445 static int ksz8081_config_init(struct phy_device *phydev) 446 { 447 /* KSZPHY_OMSO_FACTORY_TEST is set at de-assertion of the reset line 448 * based on the RXER (KSZ8081RNA/RND) or TXC (KSZ8081MNX/RNB) pin. If a 449 * pull-down is missing, the factory test mode should be cleared by 450 * manually writing a 0. 451 */ 452 phy_clear_bits(phydev, MII_KSZPHY_OMSO, KSZPHY_OMSO_FACTORY_TEST); 453 454 return kszphy_config_init(phydev); 455 } 456 457 static int ksz8081_config_mdix(struct phy_device *phydev, u8 ctrl) 458 { 459 u16 val; 460 461 switch (ctrl) { 462 case ETH_TP_MDI: 463 val = KSZ8081_CTRL2_DISABLE_AUTO_MDIX; 464 break; 465 case ETH_TP_MDI_X: 466 val = KSZ8081_CTRL2_DISABLE_AUTO_MDIX | 467 KSZ8081_CTRL2_MDI_MDI_X_SELECT; 468 break; 469 case ETH_TP_MDI_AUTO: 470 val = 0; 471 break; 472 default: 473 return 0; 474 } 475 476 return phy_modify(phydev, MII_KSZPHY_CTRL_2, 477 KSZ8081_CTRL2_HP_MDIX | 478 KSZ8081_CTRL2_MDI_MDI_X_SELECT | 479 KSZ8081_CTRL2_DISABLE_AUTO_MDIX, 480 KSZ8081_CTRL2_HP_MDIX | val); 481 } 482 483 static int ksz8081_config_aneg(struct phy_device *phydev) 484 { 485 int ret; 486 487 ret = genphy_config_aneg(phydev); 488 if (ret) 489 return ret; 490 491 /* The MDI-X configuration is automatically changed by the PHY after 492 * switching from autoneg off to on. So, take MDI-X configuration under 493 * own control and set it after autoneg configuration was done. 494 */ 495 return ksz8081_config_mdix(phydev, phydev->mdix_ctrl); 496 } 497 498 static int ksz8081_mdix_update(struct phy_device *phydev) 499 { 500 int ret; 501 502 ret = phy_read(phydev, MII_KSZPHY_CTRL_2); 503 if (ret < 0) 504 return ret; 505 506 if (ret & KSZ8081_CTRL2_DISABLE_AUTO_MDIX) { 507 if (ret & KSZ8081_CTRL2_MDI_MDI_X_SELECT) 508 phydev->mdix_ctrl = ETH_TP_MDI_X; 509 else 510 phydev->mdix_ctrl = ETH_TP_MDI; 511 } else { 512 phydev->mdix_ctrl = ETH_TP_MDI_AUTO; 513 } 514 515 ret = phy_read(phydev, MII_KSZPHY_CTRL_1); 516 if (ret < 0) 517 return ret; 518 519 if (ret & KSZ8081_CTRL1_MDIX_STAT) 520 phydev->mdix = ETH_TP_MDI; 521 else 522 phydev->mdix = ETH_TP_MDI_X; 523 524 return 0; 525 } 526 527 static int ksz8081_read_status(struct phy_device *phydev) 528 { 529 int ret; 530 531 ret = ksz8081_mdix_update(phydev); 532 if (ret < 0) 533 return ret; 534 535 return genphy_read_status(phydev); 536 } 537 538 static int ksz8061_config_init(struct phy_device *phydev) 539 { 540 int ret; 541 542 ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_DEVID1, 0xB61A); 543 if (ret) 544 return ret; 545 546 return kszphy_config_init(phydev); 547 } 548 549 static int ksz8795_match_phy_device(struct phy_device *phydev) 550 { 551 return ksz8051_ksz8795_match_phy_device(phydev, false); 552 } 553 554 static int ksz9021_load_values_from_of(struct phy_device *phydev, 555 const struct device_node *of_node, 556 u16 reg, 557 const char *field1, const char *field2, 558 const char *field3, const char *field4) 559 { 560 int val1 = -1; 561 int val2 = -2; 562 int val3 = -3; 563 int val4 = -4; 564 int newval; 565 int matches = 0; 566 567 if (!of_property_read_u32(of_node, field1, &val1)) 568 matches++; 569 570 if (!of_property_read_u32(of_node, field2, &val2)) 571 matches++; 572 573 if (!of_property_read_u32(of_node, field3, &val3)) 574 matches++; 575 576 if (!of_property_read_u32(of_node, field4, &val4)) 577 matches++; 578 579 if (!matches) 580 return 0; 581 582 if (matches < 4) 583 newval = kszphy_extended_read(phydev, reg); 584 else 585 newval = 0; 586 587 if (val1 != -1) 588 newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0); 589 590 if (val2 != -2) 591 newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4); 592 593 if (val3 != -3) 594 newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8); 595 596 if (val4 != -4) 597 newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12); 598 599 return kszphy_extended_write(phydev, reg, newval); 600 } 601 602 static int ksz9021_config_init(struct phy_device *phydev) 603 { 604 const struct device_node *of_node; 605 const struct device *dev_walker; 606 607 /* The Micrel driver has a deprecated option to place phy OF 608 * properties in the MAC node. Walk up the tree of devices to 609 * find a device with an OF node. 610 */ 611 dev_walker = &phydev->mdio.dev; 612 do { 613 of_node = dev_walker->of_node; 614 dev_walker = dev_walker->parent; 615 616 } while (!of_node && dev_walker); 617 618 if (of_node) { 619 ksz9021_load_values_from_of(phydev, of_node, 620 MII_KSZPHY_CLK_CONTROL_PAD_SKEW, 621 "txen-skew-ps", "txc-skew-ps", 622 "rxdv-skew-ps", "rxc-skew-ps"); 623 ksz9021_load_values_from_of(phydev, of_node, 624 MII_KSZPHY_RX_DATA_PAD_SKEW, 625 "rxd0-skew-ps", "rxd1-skew-ps", 626 "rxd2-skew-ps", "rxd3-skew-ps"); 627 ksz9021_load_values_from_of(phydev, of_node, 628 MII_KSZPHY_TX_DATA_PAD_SKEW, 629 "txd0-skew-ps", "txd1-skew-ps", 630 "txd2-skew-ps", "txd3-skew-ps"); 631 } 632 return 0; 633 } 634 635 #define KSZ9031_PS_TO_REG 60 636 637 /* Extended registers */ 638 /* MMD Address 0x0 */ 639 #define MII_KSZ9031RN_FLP_BURST_TX_LO 3 640 #define MII_KSZ9031RN_FLP_BURST_TX_HI 4 641 642 /* MMD Address 0x2 */ 643 #define MII_KSZ9031RN_CONTROL_PAD_SKEW 4 644 #define MII_KSZ9031RN_RX_CTL_M GENMASK(7, 4) 645 #define MII_KSZ9031RN_TX_CTL_M GENMASK(3, 0) 646 647 #define MII_KSZ9031RN_RX_DATA_PAD_SKEW 5 648 #define MII_KSZ9031RN_RXD3 GENMASK(15, 12) 649 #define MII_KSZ9031RN_RXD2 GENMASK(11, 8) 650 #define MII_KSZ9031RN_RXD1 GENMASK(7, 4) 651 #define MII_KSZ9031RN_RXD0 GENMASK(3, 0) 652 653 #define MII_KSZ9031RN_TX_DATA_PAD_SKEW 6 654 #define MII_KSZ9031RN_TXD3 GENMASK(15, 12) 655 #define MII_KSZ9031RN_TXD2 GENMASK(11, 8) 656 #define MII_KSZ9031RN_TXD1 GENMASK(7, 4) 657 #define MII_KSZ9031RN_TXD0 GENMASK(3, 0) 658 659 #define MII_KSZ9031RN_CLK_PAD_SKEW 8 660 #define MII_KSZ9031RN_GTX_CLK GENMASK(9, 5) 661 #define MII_KSZ9031RN_RX_CLK GENMASK(4, 0) 662 663 /* KSZ9031 has internal RGMII_IDRX = 1.2ns and RGMII_IDTX = 0ns. To 664 * provide different RGMII options we need to configure delay offset 665 * for each pad relative to build in delay. 666 */ 667 /* keep rx as "No delay adjustment" and set rx_clk to +0.60ns to get delays of 668 * 1.80ns 669 */ 670 #define RX_ID 0x7 671 #define RX_CLK_ID 0x19 672 673 /* set rx to +0.30ns and rx_clk to -0.90ns to compensate the 674 * internal 1.2ns delay. 675 */ 676 #define RX_ND 0xc 677 #define RX_CLK_ND 0x0 678 679 /* set tx to -0.42ns and tx_clk to +0.96ns to get 1.38ns delay */ 680 #define TX_ID 0x0 681 #define TX_CLK_ID 0x1f 682 683 /* set tx and tx_clk to "No delay adjustment" to keep 0ns 684 * dealy 685 */ 686 #define TX_ND 0x7 687 #define TX_CLK_ND 0xf 688 689 /* MMD Address 0x1C */ 690 #define MII_KSZ9031RN_EDPD 0x23 691 #define MII_KSZ9031RN_EDPD_ENABLE BIT(0) 692 693 static int ksz9031_of_load_skew_values(struct phy_device *phydev, 694 const struct device_node *of_node, 695 u16 reg, size_t field_sz, 696 const char *field[], u8 numfields, 697 bool *update) 698 { 699 int val[4] = {-1, -2, -3, -4}; 700 int matches = 0; 701 u16 mask; 702 u16 maxval; 703 u16 newval; 704 int i; 705 706 for (i = 0; i < numfields; i++) 707 if (!of_property_read_u32(of_node, field[i], val + i)) 708 matches++; 709 710 if (!matches) 711 return 0; 712 713 *update |= true; 714 715 if (matches < numfields) 716 newval = phy_read_mmd(phydev, 2, reg); 717 else 718 newval = 0; 719 720 maxval = (field_sz == 4) ? 0xf : 0x1f; 721 for (i = 0; i < numfields; i++) 722 if (val[i] != -(i + 1)) { 723 mask = 0xffff; 724 mask ^= maxval << (field_sz * i); 725 newval = (newval & mask) | 726 (((val[i] / KSZ9031_PS_TO_REG) & maxval) 727 << (field_sz * i)); 728 } 729 730 return phy_write_mmd(phydev, 2, reg, newval); 731 } 732 733 /* Center KSZ9031RNX FLP timing at 16ms. */ 734 static int ksz9031_center_flp_timing(struct phy_device *phydev) 735 { 736 int result; 737 738 result = phy_write_mmd(phydev, 0, MII_KSZ9031RN_FLP_BURST_TX_HI, 739 0x0006); 740 if (result) 741 return result; 742 743 result = phy_write_mmd(phydev, 0, MII_KSZ9031RN_FLP_BURST_TX_LO, 744 0x1A80); 745 if (result) 746 return result; 747 748 return genphy_restart_aneg(phydev); 749 } 750 751 /* Enable energy-detect power-down mode */ 752 static int ksz9031_enable_edpd(struct phy_device *phydev) 753 { 754 int reg; 755 756 reg = phy_read_mmd(phydev, 0x1C, MII_KSZ9031RN_EDPD); 757 if (reg < 0) 758 return reg; 759 return phy_write_mmd(phydev, 0x1C, MII_KSZ9031RN_EDPD, 760 reg | MII_KSZ9031RN_EDPD_ENABLE); 761 } 762 763 static int ksz9031_config_rgmii_delay(struct phy_device *phydev) 764 { 765 u16 rx, tx, rx_clk, tx_clk; 766 int ret; 767 768 switch (phydev->interface) { 769 case PHY_INTERFACE_MODE_RGMII: 770 tx = TX_ND; 771 tx_clk = TX_CLK_ND; 772 rx = RX_ND; 773 rx_clk = RX_CLK_ND; 774 break; 775 case PHY_INTERFACE_MODE_RGMII_ID: 776 tx = TX_ID; 777 tx_clk = TX_CLK_ID; 778 rx = RX_ID; 779 rx_clk = RX_CLK_ID; 780 break; 781 case PHY_INTERFACE_MODE_RGMII_RXID: 782 tx = TX_ND; 783 tx_clk = TX_CLK_ND; 784 rx = RX_ID; 785 rx_clk = RX_CLK_ID; 786 break; 787 case PHY_INTERFACE_MODE_RGMII_TXID: 788 tx = TX_ID; 789 tx_clk = TX_CLK_ID; 790 rx = RX_ND; 791 rx_clk = RX_CLK_ND; 792 break; 793 default: 794 return 0; 795 } 796 797 ret = phy_write_mmd(phydev, 2, MII_KSZ9031RN_CONTROL_PAD_SKEW, 798 FIELD_PREP(MII_KSZ9031RN_RX_CTL_M, rx) | 799 FIELD_PREP(MII_KSZ9031RN_TX_CTL_M, tx)); 800 if (ret < 0) 801 return ret; 802 803 ret = phy_write_mmd(phydev, 2, MII_KSZ9031RN_RX_DATA_PAD_SKEW, 804 FIELD_PREP(MII_KSZ9031RN_RXD3, rx) | 805 FIELD_PREP(MII_KSZ9031RN_RXD2, rx) | 806 FIELD_PREP(MII_KSZ9031RN_RXD1, rx) | 807 FIELD_PREP(MII_KSZ9031RN_RXD0, rx)); 808 if (ret < 0) 809 return ret; 810 811 ret = phy_write_mmd(phydev, 2, MII_KSZ9031RN_TX_DATA_PAD_SKEW, 812 FIELD_PREP(MII_KSZ9031RN_TXD3, tx) | 813 FIELD_PREP(MII_KSZ9031RN_TXD2, tx) | 814 FIELD_PREP(MII_KSZ9031RN_TXD1, tx) | 815 FIELD_PREP(MII_KSZ9031RN_TXD0, tx)); 816 if (ret < 0) 817 return ret; 818 819 return phy_write_mmd(phydev, 2, MII_KSZ9031RN_CLK_PAD_SKEW, 820 FIELD_PREP(MII_KSZ9031RN_GTX_CLK, tx_clk) | 821 FIELD_PREP(MII_KSZ9031RN_RX_CLK, rx_clk)); 822 } 823 824 static int ksz9031_config_init(struct phy_device *phydev) 825 { 826 const struct device_node *of_node; 827 static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"}; 828 static const char *rx_data_skews[4] = { 829 "rxd0-skew-ps", "rxd1-skew-ps", 830 "rxd2-skew-ps", "rxd3-skew-ps" 831 }; 832 static const char *tx_data_skews[4] = { 833 "txd0-skew-ps", "txd1-skew-ps", 834 "txd2-skew-ps", "txd3-skew-ps" 835 }; 836 static const char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"}; 837 const struct device *dev_walker; 838 int result; 839 840 result = ksz9031_enable_edpd(phydev); 841 if (result < 0) 842 return result; 843 844 /* The Micrel driver has a deprecated option to place phy OF 845 * properties in the MAC node. Walk up the tree of devices to 846 * find a device with an OF node. 847 */ 848 dev_walker = &phydev->mdio.dev; 849 do { 850 of_node = dev_walker->of_node; 851 dev_walker = dev_walker->parent; 852 } while (!of_node && dev_walker); 853 854 if (of_node) { 855 bool update = false; 856 857 if (phy_interface_is_rgmii(phydev)) { 858 result = ksz9031_config_rgmii_delay(phydev); 859 if (result < 0) 860 return result; 861 } 862 863 ksz9031_of_load_skew_values(phydev, of_node, 864 MII_KSZ9031RN_CLK_PAD_SKEW, 5, 865 clk_skews, 2, &update); 866 867 ksz9031_of_load_skew_values(phydev, of_node, 868 MII_KSZ9031RN_CONTROL_PAD_SKEW, 4, 869 control_skews, 2, &update); 870 871 ksz9031_of_load_skew_values(phydev, of_node, 872 MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4, 873 rx_data_skews, 4, &update); 874 875 ksz9031_of_load_skew_values(phydev, of_node, 876 MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4, 877 tx_data_skews, 4, &update); 878 879 if (update && !phy_interface_is_rgmii(phydev)) 880 phydev_warn(phydev, 881 "*-skew-ps values should be used only with RGMII PHY modes\n"); 882 883 /* Silicon Errata Sheet (DS80000691D or DS80000692D): 884 * When the device links in the 1000BASE-T slave mode only, 885 * the optional 125MHz reference output clock (CLK125_NDO) 886 * has wide duty cycle variation. 887 * 888 * The optional CLK125_NDO clock does not meet the RGMII 889 * 45/55 percent (min/max) duty cycle requirement and therefore 890 * cannot be used directly by the MAC side for clocking 891 * applications that have setup/hold time requirements on 892 * rising and falling clock edges. 893 * 894 * Workaround: 895 * Force the phy to be the master to receive a stable clock 896 * which meets the duty cycle requirement. 897 */ 898 if (of_property_read_bool(of_node, "micrel,force-master")) { 899 result = phy_read(phydev, MII_CTRL1000); 900 if (result < 0) 901 goto err_force_master; 902 903 /* enable master mode, config & prefer master */ 904 result |= CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER; 905 result = phy_write(phydev, MII_CTRL1000, result); 906 if (result < 0) 907 goto err_force_master; 908 } 909 } 910 911 return ksz9031_center_flp_timing(phydev); 912 913 err_force_master: 914 phydev_err(phydev, "failed to force the phy to master mode\n"); 915 return result; 916 } 917 918 #define KSZ9131_SKEW_5BIT_MAX 2400 919 #define KSZ9131_SKEW_4BIT_MAX 800 920 #define KSZ9131_OFFSET 700 921 #define KSZ9131_STEP 100 922 923 static int ksz9131_of_load_skew_values(struct phy_device *phydev, 924 struct device_node *of_node, 925 u16 reg, size_t field_sz, 926 char *field[], u8 numfields) 927 { 928 int val[4] = {-(1 + KSZ9131_OFFSET), -(2 + KSZ9131_OFFSET), 929 -(3 + KSZ9131_OFFSET), -(4 + KSZ9131_OFFSET)}; 930 int skewval, skewmax = 0; 931 int matches = 0; 932 u16 maxval; 933 u16 newval; 934 u16 mask; 935 int i; 936 937 /* psec properties in dts should mean x pico seconds */ 938 if (field_sz == 5) 939 skewmax = KSZ9131_SKEW_5BIT_MAX; 940 else 941 skewmax = KSZ9131_SKEW_4BIT_MAX; 942 943 for (i = 0; i < numfields; i++) 944 if (!of_property_read_s32(of_node, field[i], &skewval)) { 945 if (skewval < -KSZ9131_OFFSET) 946 skewval = -KSZ9131_OFFSET; 947 else if (skewval > skewmax) 948 skewval = skewmax; 949 950 val[i] = skewval + KSZ9131_OFFSET; 951 matches++; 952 } 953 954 if (!matches) 955 return 0; 956 957 if (matches < numfields) 958 newval = phy_read_mmd(phydev, 2, reg); 959 else 960 newval = 0; 961 962 maxval = (field_sz == 4) ? 0xf : 0x1f; 963 for (i = 0; i < numfields; i++) 964 if (val[i] != -(i + 1 + KSZ9131_OFFSET)) { 965 mask = 0xffff; 966 mask ^= maxval << (field_sz * i); 967 newval = (newval & mask) | 968 (((val[i] / KSZ9131_STEP) & maxval) 969 << (field_sz * i)); 970 } 971 972 return phy_write_mmd(phydev, 2, reg, newval); 973 } 974 975 #define KSZ9131RN_MMD_COMMON_CTRL_REG 2 976 #define KSZ9131RN_RXC_DLL_CTRL 76 977 #define KSZ9131RN_TXC_DLL_CTRL 77 978 #define KSZ9131RN_DLL_CTRL_BYPASS BIT_MASK(12) 979 #define KSZ9131RN_DLL_ENABLE_DELAY 0 980 #define KSZ9131RN_DLL_DISABLE_DELAY BIT(12) 981 982 static int ksz9131_config_rgmii_delay(struct phy_device *phydev) 983 { 984 u16 rxcdll_val, txcdll_val; 985 int ret; 986 987 switch (phydev->interface) { 988 case PHY_INTERFACE_MODE_RGMII: 989 rxcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 990 txcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 991 break; 992 case PHY_INTERFACE_MODE_RGMII_ID: 993 rxcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 994 txcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 995 break; 996 case PHY_INTERFACE_MODE_RGMII_RXID: 997 rxcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 998 txcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 999 break; 1000 case PHY_INTERFACE_MODE_RGMII_TXID: 1001 rxcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 1002 txcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 1003 break; 1004 default: 1005 return 0; 1006 } 1007 1008 ret = phy_modify_mmd(phydev, KSZ9131RN_MMD_COMMON_CTRL_REG, 1009 KSZ9131RN_RXC_DLL_CTRL, KSZ9131RN_DLL_CTRL_BYPASS, 1010 rxcdll_val); 1011 if (ret < 0) 1012 return ret; 1013 1014 return phy_modify_mmd(phydev, KSZ9131RN_MMD_COMMON_CTRL_REG, 1015 KSZ9131RN_TXC_DLL_CTRL, KSZ9131RN_DLL_CTRL_BYPASS, 1016 txcdll_val); 1017 } 1018 1019 /* Silicon Errata DS80000693B 1020 * 1021 * When LEDs are configured in Individual Mode, LED1 is ON in a no-link 1022 * condition. Workaround is to set register 0x1e, bit 9, this way LED1 behaves 1023 * according to the datasheet (off if there is no link). 1024 */ 1025 static int ksz9131_led_errata(struct phy_device *phydev) 1026 { 1027 int reg; 1028 1029 reg = phy_read_mmd(phydev, 2, 0); 1030 if (reg < 0) 1031 return reg; 1032 1033 if (!(reg & BIT(4))) 1034 return 0; 1035 1036 return phy_set_bits(phydev, 0x1e, BIT(9)); 1037 } 1038 1039 static int ksz9131_config_init(struct phy_device *phydev) 1040 { 1041 struct device_node *of_node; 1042 char *clk_skews[2] = {"rxc-skew-psec", "txc-skew-psec"}; 1043 char *rx_data_skews[4] = { 1044 "rxd0-skew-psec", "rxd1-skew-psec", 1045 "rxd2-skew-psec", "rxd3-skew-psec" 1046 }; 1047 char *tx_data_skews[4] = { 1048 "txd0-skew-psec", "txd1-skew-psec", 1049 "txd2-skew-psec", "txd3-skew-psec" 1050 }; 1051 char *control_skews[2] = {"txen-skew-psec", "rxdv-skew-psec"}; 1052 const struct device *dev_walker; 1053 int ret; 1054 1055 dev_walker = &phydev->mdio.dev; 1056 do { 1057 of_node = dev_walker->of_node; 1058 dev_walker = dev_walker->parent; 1059 } while (!of_node && dev_walker); 1060 1061 if (!of_node) 1062 return 0; 1063 1064 if (phy_interface_is_rgmii(phydev)) { 1065 ret = ksz9131_config_rgmii_delay(phydev); 1066 if (ret < 0) 1067 return ret; 1068 } 1069 1070 ret = ksz9131_of_load_skew_values(phydev, of_node, 1071 MII_KSZ9031RN_CLK_PAD_SKEW, 5, 1072 clk_skews, 2); 1073 if (ret < 0) 1074 return ret; 1075 1076 ret = ksz9131_of_load_skew_values(phydev, of_node, 1077 MII_KSZ9031RN_CONTROL_PAD_SKEW, 4, 1078 control_skews, 2); 1079 if (ret < 0) 1080 return ret; 1081 1082 ret = ksz9131_of_load_skew_values(phydev, of_node, 1083 MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4, 1084 rx_data_skews, 4); 1085 if (ret < 0) 1086 return ret; 1087 1088 ret = ksz9131_of_load_skew_values(phydev, of_node, 1089 MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4, 1090 tx_data_skews, 4); 1091 if (ret < 0) 1092 return ret; 1093 1094 ret = ksz9131_led_errata(phydev); 1095 if (ret < 0) 1096 return ret; 1097 1098 return 0; 1099 } 1100 1101 #define KSZ8873MLL_GLOBAL_CONTROL_4 0x06 1102 #define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX BIT(6) 1103 #define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED BIT(4) 1104 static int ksz8873mll_read_status(struct phy_device *phydev) 1105 { 1106 int regval; 1107 1108 /* dummy read */ 1109 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4); 1110 1111 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4); 1112 1113 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX) 1114 phydev->duplex = DUPLEX_HALF; 1115 else 1116 phydev->duplex = DUPLEX_FULL; 1117 1118 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED) 1119 phydev->speed = SPEED_10; 1120 else 1121 phydev->speed = SPEED_100; 1122 1123 phydev->link = 1; 1124 phydev->pause = phydev->asym_pause = 0; 1125 1126 return 0; 1127 } 1128 1129 static int ksz9031_get_features(struct phy_device *phydev) 1130 { 1131 int ret; 1132 1133 ret = genphy_read_abilities(phydev); 1134 if (ret < 0) 1135 return ret; 1136 1137 /* Silicon Errata Sheet (DS80000691D or DS80000692D): 1138 * Whenever the device's Asymmetric Pause capability is set to 1, 1139 * link-up may fail after a link-up to link-down transition. 1140 * 1141 * The Errata Sheet is for ksz9031, but ksz9021 has the same issue 1142 * 1143 * Workaround: 1144 * Do not enable the Asymmetric Pause capability bit. 1145 */ 1146 linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported); 1147 1148 /* We force setting the Pause capability as the core will force the 1149 * Asymmetric Pause capability to 1 otherwise. 1150 */ 1151 linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported); 1152 1153 return 0; 1154 } 1155 1156 static int ksz9031_read_status(struct phy_device *phydev) 1157 { 1158 int err; 1159 int regval; 1160 1161 err = genphy_read_status(phydev); 1162 if (err) 1163 return err; 1164 1165 /* Make sure the PHY is not broken. Read idle error count, 1166 * and reset the PHY if it is maxed out. 1167 */ 1168 regval = phy_read(phydev, MII_STAT1000); 1169 if ((regval & 0xFF) == 0xFF) { 1170 phy_init_hw(phydev); 1171 phydev->link = 0; 1172 if (phydev->drv->config_intr && phy_interrupt_is_valid(phydev)) 1173 phydev->drv->config_intr(phydev); 1174 return genphy_config_aneg(phydev); 1175 } 1176 1177 return 0; 1178 } 1179 1180 static int ksz8873mll_config_aneg(struct phy_device *phydev) 1181 { 1182 return 0; 1183 } 1184 1185 static int ksz886x_config_mdix(struct phy_device *phydev, u8 ctrl) 1186 { 1187 u16 val; 1188 1189 switch (ctrl) { 1190 case ETH_TP_MDI: 1191 val = KSZ886X_BMCR_DISABLE_AUTO_MDIX; 1192 break; 1193 case ETH_TP_MDI_X: 1194 /* Note: The naming of the bit KSZ886X_BMCR_FORCE_MDI is bit 1195 * counter intuitive, the "-X" in "1 = Force MDI" in the data 1196 * sheet seems to be missing: 1197 * 1 = Force MDI (sic!) (transmit on RX+/RX- pins) 1198 * 0 = Normal operation (transmit on TX+/TX- pins) 1199 */ 1200 val = KSZ886X_BMCR_DISABLE_AUTO_MDIX | KSZ886X_BMCR_FORCE_MDI; 1201 break; 1202 case ETH_TP_MDI_AUTO: 1203 val = 0; 1204 break; 1205 default: 1206 return 0; 1207 } 1208 1209 return phy_modify(phydev, MII_BMCR, 1210 KSZ886X_BMCR_HP_MDIX | KSZ886X_BMCR_FORCE_MDI | 1211 KSZ886X_BMCR_DISABLE_AUTO_MDIX, 1212 KSZ886X_BMCR_HP_MDIX | val); 1213 } 1214 1215 static int ksz886x_config_aneg(struct phy_device *phydev) 1216 { 1217 int ret; 1218 1219 ret = genphy_config_aneg(phydev); 1220 if (ret) 1221 return ret; 1222 1223 /* The MDI-X configuration is automatically changed by the PHY after 1224 * switching from autoneg off to on. So, take MDI-X configuration under 1225 * own control and set it after autoneg configuration was done. 1226 */ 1227 return ksz886x_config_mdix(phydev, phydev->mdix_ctrl); 1228 } 1229 1230 static int ksz886x_mdix_update(struct phy_device *phydev) 1231 { 1232 int ret; 1233 1234 ret = phy_read(phydev, MII_BMCR); 1235 if (ret < 0) 1236 return ret; 1237 1238 if (ret & KSZ886X_BMCR_DISABLE_AUTO_MDIX) { 1239 if (ret & KSZ886X_BMCR_FORCE_MDI) 1240 phydev->mdix_ctrl = ETH_TP_MDI_X; 1241 else 1242 phydev->mdix_ctrl = ETH_TP_MDI; 1243 } else { 1244 phydev->mdix_ctrl = ETH_TP_MDI_AUTO; 1245 } 1246 1247 ret = phy_read(phydev, MII_KSZPHY_CTRL); 1248 if (ret < 0) 1249 return ret; 1250 1251 /* Same reverse logic as KSZ886X_BMCR_FORCE_MDI */ 1252 if (ret & KSZ886X_CTRL_MDIX_STAT) 1253 phydev->mdix = ETH_TP_MDI_X; 1254 else 1255 phydev->mdix = ETH_TP_MDI; 1256 1257 return 0; 1258 } 1259 1260 static int ksz886x_read_status(struct phy_device *phydev) 1261 { 1262 int ret; 1263 1264 ret = ksz886x_mdix_update(phydev); 1265 if (ret < 0) 1266 return ret; 1267 1268 return genphy_read_status(phydev); 1269 } 1270 1271 static int kszphy_get_sset_count(struct phy_device *phydev) 1272 { 1273 return ARRAY_SIZE(kszphy_hw_stats); 1274 } 1275 1276 static void kszphy_get_strings(struct phy_device *phydev, u8 *data) 1277 { 1278 int i; 1279 1280 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) { 1281 strlcpy(data + i * ETH_GSTRING_LEN, 1282 kszphy_hw_stats[i].string, ETH_GSTRING_LEN); 1283 } 1284 } 1285 1286 static u64 kszphy_get_stat(struct phy_device *phydev, int i) 1287 { 1288 struct kszphy_hw_stat stat = kszphy_hw_stats[i]; 1289 struct kszphy_priv *priv = phydev->priv; 1290 int val; 1291 u64 ret; 1292 1293 val = phy_read(phydev, stat.reg); 1294 if (val < 0) { 1295 ret = U64_MAX; 1296 } else { 1297 val = val & ((1 << stat.bits) - 1); 1298 priv->stats[i] += val; 1299 ret = priv->stats[i]; 1300 } 1301 1302 return ret; 1303 } 1304 1305 static void kszphy_get_stats(struct phy_device *phydev, 1306 struct ethtool_stats *stats, u64 *data) 1307 { 1308 int i; 1309 1310 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) 1311 data[i] = kszphy_get_stat(phydev, i); 1312 } 1313 1314 static int kszphy_suspend(struct phy_device *phydev) 1315 { 1316 /* Disable PHY Interrupts */ 1317 if (phy_interrupt_is_valid(phydev)) { 1318 phydev->interrupts = PHY_INTERRUPT_DISABLED; 1319 if (phydev->drv->config_intr) 1320 phydev->drv->config_intr(phydev); 1321 } 1322 1323 return genphy_suspend(phydev); 1324 } 1325 1326 static int kszphy_resume(struct phy_device *phydev) 1327 { 1328 int ret; 1329 1330 genphy_resume(phydev); 1331 1332 /* After switching from power-down to normal mode, an internal global 1333 * reset is automatically generated. Wait a minimum of 1 ms before 1334 * read/write access to the PHY registers. 1335 */ 1336 usleep_range(1000, 2000); 1337 1338 ret = kszphy_config_reset(phydev); 1339 if (ret) 1340 return ret; 1341 1342 /* Enable PHY Interrupts */ 1343 if (phy_interrupt_is_valid(phydev)) { 1344 phydev->interrupts = PHY_INTERRUPT_ENABLED; 1345 if (phydev->drv->config_intr) 1346 phydev->drv->config_intr(phydev); 1347 } 1348 1349 return 0; 1350 } 1351 1352 static int kszphy_probe(struct phy_device *phydev) 1353 { 1354 const struct kszphy_type *type = phydev->drv->driver_data; 1355 const struct device_node *np = phydev->mdio.dev.of_node; 1356 struct kszphy_priv *priv; 1357 struct clk *clk; 1358 int ret; 1359 1360 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); 1361 if (!priv) 1362 return -ENOMEM; 1363 1364 phydev->priv = priv; 1365 1366 priv->type = type; 1367 1368 if (type->led_mode_reg) { 1369 ret = of_property_read_u32(np, "micrel,led-mode", 1370 &priv->led_mode); 1371 if (ret) 1372 priv->led_mode = -1; 1373 1374 if (priv->led_mode > 3) { 1375 phydev_err(phydev, "invalid led mode: 0x%02x\n", 1376 priv->led_mode); 1377 priv->led_mode = -1; 1378 } 1379 } else { 1380 priv->led_mode = -1; 1381 } 1382 1383 clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref"); 1384 /* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */ 1385 if (!IS_ERR_OR_NULL(clk)) { 1386 unsigned long rate = clk_get_rate(clk); 1387 bool rmii_ref_clk_sel_25_mhz; 1388 1389 priv->rmii_ref_clk_sel = type->has_rmii_ref_clk_sel; 1390 rmii_ref_clk_sel_25_mhz = of_property_read_bool(np, 1391 "micrel,rmii-reference-clock-select-25-mhz"); 1392 1393 if (rate > 24500000 && rate < 25500000) { 1394 priv->rmii_ref_clk_sel_val = rmii_ref_clk_sel_25_mhz; 1395 } else if (rate > 49500000 && rate < 50500000) { 1396 priv->rmii_ref_clk_sel_val = !rmii_ref_clk_sel_25_mhz; 1397 } else { 1398 phydev_err(phydev, "Clock rate out of range: %ld\n", 1399 rate); 1400 return -EINVAL; 1401 } 1402 } 1403 1404 if (ksz8041_fiber_mode(phydev)) 1405 phydev->port = PORT_FIBRE; 1406 1407 /* Support legacy board-file configuration */ 1408 if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) { 1409 priv->rmii_ref_clk_sel = true; 1410 priv->rmii_ref_clk_sel_val = true; 1411 } 1412 1413 return 0; 1414 } 1415 1416 static int ksz886x_cable_test_start(struct phy_device *phydev) 1417 { 1418 if (phydev->dev_flags & MICREL_KSZ8_P1_ERRATA) 1419 return -EOPNOTSUPP; 1420 1421 /* If autoneg is enabled, we won't be able to test cross pair 1422 * short. In this case, the PHY will "detect" a link and 1423 * confuse the internal state machine - disable auto neg here. 1424 * If autoneg is disabled, we should set the speed to 10mbit. 1425 */ 1426 return phy_clear_bits(phydev, MII_BMCR, BMCR_ANENABLE | BMCR_SPEED100); 1427 } 1428 1429 static int ksz886x_cable_test_result_trans(u16 status) 1430 { 1431 switch (FIELD_GET(KSZ8081_LMD_STAT_MASK, status)) { 1432 case KSZ8081_LMD_STAT_NORMAL: 1433 return ETHTOOL_A_CABLE_RESULT_CODE_OK; 1434 case KSZ8081_LMD_STAT_SHORT: 1435 return ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT; 1436 case KSZ8081_LMD_STAT_OPEN: 1437 return ETHTOOL_A_CABLE_RESULT_CODE_OPEN; 1438 case KSZ8081_LMD_STAT_FAIL: 1439 fallthrough; 1440 default: 1441 return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC; 1442 } 1443 } 1444 1445 static bool ksz886x_cable_test_failed(u16 status) 1446 { 1447 return FIELD_GET(KSZ8081_LMD_STAT_MASK, status) == 1448 KSZ8081_LMD_STAT_FAIL; 1449 } 1450 1451 static bool ksz886x_cable_test_fault_length_valid(u16 status) 1452 { 1453 switch (FIELD_GET(KSZ8081_LMD_STAT_MASK, status)) { 1454 case KSZ8081_LMD_STAT_OPEN: 1455 fallthrough; 1456 case KSZ8081_LMD_STAT_SHORT: 1457 return true; 1458 } 1459 return false; 1460 } 1461 1462 static int ksz886x_cable_test_fault_length(u16 status) 1463 { 1464 int dt; 1465 1466 /* According to the data sheet the distance to the fault is 1467 * DELTA_TIME * 0.4 meters. 1468 */ 1469 dt = FIELD_GET(KSZ8081_LMD_DELTA_TIME_MASK, status); 1470 1471 return (dt * 400) / 10; 1472 } 1473 1474 static int ksz886x_cable_test_wait_for_completion(struct phy_device *phydev) 1475 { 1476 int val, ret; 1477 1478 ret = phy_read_poll_timeout(phydev, KSZ8081_LMD, val, 1479 !(val & KSZ8081_LMD_ENABLE_TEST), 1480 30000, 100000, true); 1481 1482 return ret < 0 ? ret : 0; 1483 } 1484 1485 static int ksz886x_cable_test_one_pair(struct phy_device *phydev, int pair) 1486 { 1487 static const int ethtool_pair[] = { 1488 ETHTOOL_A_CABLE_PAIR_A, 1489 ETHTOOL_A_CABLE_PAIR_B, 1490 }; 1491 int ret, val, mdix; 1492 1493 /* There is no way to choice the pair, like we do one ksz9031. 1494 * We can workaround this limitation by using the MDI-X functionality. 1495 */ 1496 if (pair == 0) 1497 mdix = ETH_TP_MDI; 1498 else 1499 mdix = ETH_TP_MDI_X; 1500 1501 switch (phydev->phy_id & MICREL_PHY_ID_MASK) { 1502 case PHY_ID_KSZ8081: 1503 ret = ksz8081_config_mdix(phydev, mdix); 1504 break; 1505 case PHY_ID_KSZ886X: 1506 ret = ksz886x_config_mdix(phydev, mdix); 1507 break; 1508 default: 1509 ret = -ENODEV; 1510 } 1511 1512 if (ret) 1513 return ret; 1514 1515 /* Now we are ready to fire. This command will send a 100ns pulse 1516 * to the pair. 1517 */ 1518 ret = phy_write(phydev, KSZ8081_LMD, KSZ8081_LMD_ENABLE_TEST); 1519 if (ret) 1520 return ret; 1521 1522 ret = ksz886x_cable_test_wait_for_completion(phydev); 1523 if (ret) 1524 return ret; 1525 1526 val = phy_read(phydev, KSZ8081_LMD); 1527 if (val < 0) 1528 return val; 1529 1530 if (ksz886x_cable_test_failed(val)) 1531 return -EAGAIN; 1532 1533 ret = ethnl_cable_test_result(phydev, ethtool_pair[pair], 1534 ksz886x_cable_test_result_trans(val)); 1535 if (ret) 1536 return ret; 1537 1538 if (!ksz886x_cable_test_fault_length_valid(val)) 1539 return 0; 1540 1541 return ethnl_cable_test_fault_length(phydev, ethtool_pair[pair], 1542 ksz886x_cable_test_fault_length(val)); 1543 } 1544 1545 static int ksz886x_cable_test_get_status(struct phy_device *phydev, 1546 bool *finished) 1547 { 1548 unsigned long pair_mask = 0x3; 1549 int retries = 20; 1550 int pair, ret; 1551 1552 *finished = false; 1553 1554 /* Try harder if link partner is active */ 1555 while (pair_mask && retries--) { 1556 for_each_set_bit(pair, &pair_mask, 4) { 1557 ret = ksz886x_cable_test_one_pair(phydev, pair); 1558 if (ret == -EAGAIN) 1559 continue; 1560 if (ret < 0) 1561 return ret; 1562 clear_bit(pair, &pair_mask); 1563 } 1564 /* If link partner is in autonegotiation mode it will send 2ms 1565 * of FLPs with at least 6ms of silence. 1566 * Add 2ms sleep to have better chances to hit this silence. 1567 */ 1568 if (pair_mask) 1569 msleep(2); 1570 } 1571 1572 *finished = true; 1573 1574 return ret; 1575 } 1576 1577 #define LAN_EXT_PAGE_ACCESS_CONTROL 0x16 1578 #define LAN_EXT_PAGE_ACCESS_ADDRESS_DATA 0x17 1579 #define LAN_EXT_PAGE_ACCESS_CTRL_EP_FUNC 0x4000 1580 1581 #define LAN8804_ALIGN_SWAP 0x4a 1582 #define LAN8804_ALIGN_TX_A_B_SWAP 0x1 1583 #define LAN8804_ALIGN_TX_A_B_SWAP_MASK GENMASK(2, 0) 1584 #define LAN8814_CLOCK_MANAGEMENT 0xd 1585 #define LAN8814_LINK_QUALITY 0x8e 1586 1587 static int lanphy_read_page_reg(struct phy_device *phydev, int page, u32 addr) 1588 { 1589 u32 data; 1590 1591 phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, page); 1592 phy_write(phydev, LAN_EXT_PAGE_ACCESS_ADDRESS_DATA, addr); 1593 phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, 1594 (page | LAN_EXT_PAGE_ACCESS_CTRL_EP_FUNC)); 1595 data = phy_read(phydev, LAN_EXT_PAGE_ACCESS_ADDRESS_DATA); 1596 1597 return data; 1598 } 1599 1600 static int lanphy_write_page_reg(struct phy_device *phydev, int page, u16 addr, 1601 u16 val) 1602 { 1603 phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, page); 1604 phy_write(phydev, LAN_EXT_PAGE_ACCESS_ADDRESS_DATA, addr); 1605 phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, 1606 (page | LAN_EXT_PAGE_ACCESS_CTRL_EP_FUNC)); 1607 1608 val = phy_write(phydev, LAN_EXT_PAGE_ACCESS_ADDRESS_DATA, val); 1609 if (val) { 1610 phydev_err(phydev, "Error: phy_write has returned error %d\n", 1611 val); 1612 return val; 1613 } 1614 return 0; 1615 } 1616 1617 static int lan8804_config_init(struct phy_device *phydev) 1618 { 1619 int val; 1620 1621 /* MDI-X setting for swap A,B transmit */ 1622 val = lanphy_read_page_reg(phydev, 2, LAN8804_ALIGN_SWAP); 1623 val &= ~LAN8804_ALIGN_TX_A_B_SWAP_MASK; 1624 val |= LAN8804_ALIGN_TX_A_B_SWAP; 1625 lanphy_write_page_reg(phydev, 2, LAN8804_ALIGN_SWAP, val); 1626 1627 /* Make sure that the PHY will not stop generating the clock when the 1628 * link partner goes down 1629 */ 1630 lanphy_write_page_reg(phydev, 31, LAN8814_CLOCK_MANAGEMENT, 0x27e); 1631 lanphy_read_page_reg(phydev, 1, LAN8814_LINK_QUALITY); 1632 1633 return 0; 1634 } 1635 1636 static irqreturn_t lan8814_handle_interrupt(struct phy_device *phydev) 1637 { 1638 int irq_status; 1639 1640 irq_status = phy_read(phydev, LAN8814_INTS); 1641 if (irq_status < 0) 1642 return IRQ_NONE; 1643 1644 if (!(irq_status & LAN8814_INT_LINK)) 1645 return IRQ_NONE; 1646 1647 phy_trigger_machine(phydev); 1648 1649 return IRQ_HANDLED; 1650 } 1651 1652 static int lan8814_ack_interrupt(struct phy_device *phydev) 1653 { 1654 /* bit[12..0] int status, which is a read and clear register. */ 1655 int rc; 1656 1657 rc = phy_read(phydev, LAN8814_INTS); 1658 1659 return (rc < 0) ? rc : 0; 1660 } 1661 1662 static int lan8814_config_intr(struct phy_device *phydev) 1663 { 1664 int err; 1665 1666 lanphy_write_page_reg(phydev, 4, LAN8814_INTR_CTRL_REG, 1667 LAN8814_INTR_CTRL_REG_POLARITY | 1668 LAN8814_INTR_CTRL_REG_INTR_ENABLE); 1669 1670 /* enable / disable interrupts */ 1671 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { 1672 err = lan8814_ack_interrupt(phydev); 1673 if (err) 1674 return err; 1675 1676 err = phy_write(phydev, LAN8814_INTC, LAN8814_INT_LINK); 1677 } else { 1678 err = phy_write(phydev, LAN8814_INTC, 0); 1679 if (err) 1680 return err; 1681 1682 err = lan8814_ack_interrupt(phydev); 1683 } 1684 1685 return err; 1686 } 1687 1688 static struct phy_driver ksphy_driver[] = { 1689 { 1690 .phy_id = PHY_ID_KS8737, 1691 .phy_id_mask = MICREL_PHY_ID_MASK, 1692 .name = "Micrel KS8737", 1693 /* PHY_BASIC_FEATURES */ 1694 .driver_data = &ks8737_type, 1695 .config_init = kszphy_config_init, 1696 .config_intr = kszphy_config_intr, 1697 .handle_interrupt = kszphy_handle_interrupt, 1698 .suspend = genphy_suspend, 1699 .resume = genphy_resume, 1700 }, { 1701 .phy_id = PHY_ID_KSZ8021, 1702 .phy_id_mask = 0x00ffffff, 1703 .name = "Micrel KSZ8021 or KSZ8031", 1704 /* PHY_BASIC_FEATURES */ 1705 .driver_data = &ksz8021_type, 1706 .probe = kszphy_probe, 1707 .config_init = kszphy_config_init, 1708 .config_intr = kszphy_config_intr, 1709 .handle_interrupt = kszphy_handle_interrupt, 1710 .get_sset_count = kszphy_get_sset_count, 1711 .get_strings = kszphy_get_strings, 1712 .get_stats = kszphy_get_stats, 1713 .suspend = genphy_suspend, 1714 .resume = genphy_resume, 1715 }, { 1716 .phy_id = PHY_ID_KSZ8031, 1717 .phy_id_mask = 0x00ffffff, 1718 .name = "Micrel KSZ8031", 1719 /* PHY_BASIC_FEATURES */ 1720 .driver_data = &ksz8021_type, 1721 .probe = kszphy_probe, 1722 .config_init = kszphy_config_init, 1723 .config_intr = kszphy_config_intr, 1724 .handle_interrupt = kszphy_handle_interrupt, 1725 .get_sset_count = kszphy_get_sset_count, 1726 .get_strings = kszphy_get_strings, 1727 .get_stats = kszphy_get_stats, 1728 .suspend = genphy_suspend, 1729 .resume = genphy_resume, 1730 }, { 1731 .phy_id = PHY_ID_KSZ8041, 1732 .phy_id_mask = MICREL_PHY_ID_MASK, 1733 .name = "Micrel KSZ8041", 1734 /* PHY_BASIC_FEATURES */ 1735 .driver_data = &ksz8041_type, 1736 .probe = kszphy_probe, 1737 .config_init = ksz8041_config_init, 1738 .config_aneg = ksz8041_config_aneg, 1739 .config_intr = kszphy_config_intr, 1740 .handle_interrupt = kszphy_handle_interrupt, 1741 .get_sset_count = kszphy_get_sset_count, 1742 .get_strings = kszphy_get_strings, 1743 .get_stats = kszphy_get_stats, 1744 /* No suspend/resume callbacks because of errata DS80000700A, 1745 * receiver error following software power down. 1746 */ 1747 }, { 1748 .phy_id = PHY_ID_KSZ8041RNLI, 1749 .phy_id_mask = MICREL_PHY_ID_MASK, 1750 .name = "Micrel KSZ8041RNLI", 1751 /* PHY_BASIC_FEATURES */ 1752 .driver_data = &ksz8041_type, 1753 .probe = kszphy_probe, 1754 .config_init = kszphy_config_init, 1755 .config_intr = kszphy_config_intr, 1756 .handle_interrupt = kszphy_handle_interrupt, 1757 .get_sset_count = kszphy_get_sset_count, 1758 .get_strings = kszphy_get_strings, 1759 .get_stats = kszphy_get_stats, 1760 .suspend = genphy_suspend, 1761 .resume = genphy_resume, 1762 }, { 1763 .name = "Micrel KSZ8051", 1764 /* PHY_BASIC_FEATURES */ 1765 .driver_data = &ksz8051_type, 1766 .probe = kszphy_probe, 1767 .config_init = kszphy_config_init, 1768 .config_intr = kszphy_config_intr, 1769 .handle_interrupt = kszphy_handle_interrupt, 1770 .get_sset_count = kszphy_get_sset_count, 1771 .get_strings = kszphy_get_strings, 1772 .get_stats = kszphy_get_stats, 1773 .match_phy_device = ksz8051_match_phy_device, 1774 .suspend = genphy_suspend, 1775 .resume = genphy_resume, 1776 }, { 1777 .phy_id = PHY_ID_KSZ8001, 1778 .name = "Micrel KSZ8001 or KS8721", 1779 .phy_id_mask = 0x00fffffc, 1780 /* PHY_BASIC_FEATURES */ 1781 .driver_data = &ksz8041_type, 1782 .probe = kszphy_probe, 1783 .config_init = kszphy_config_init, 1784 .config_intr = kszphy_config_intr, 1785 .handle_interrupt = kszphy_handle_interrupt, 1786 .get_sset_count = kszphy_get_sset_count, 1787 .get_strings = kszphy_get_strings, 1788 .get_stats = kszphy_get_stats, 1789 .suspend = genphy_suspend, 1790 .resume = genphy_resume, 1791 }, { 1792 .phy_id = PHY_ID_KSZ8081, 1793 .name = "Micrel KSZ8081 or KSZ8091", 1794 .phy_id_mask = MICREL_PHY_ID_MASK, 1795 .flags = PHY_POLL_CABLE_TEST, 1796 /* PHY_BASIC_FEATURES */ 1797 .driver_data = &ksz8081_type, 1798 .probe = kszphy_probe, 1799 .config_init = ksz8081_config_init, 1800 .soft_reset = genphy_soft_reset, 1801 .config_aneg = ksz8081_config_aneg, 1802 .read_status = ksz8081_read_status, 1803 .config_intr = kszphy_config_intr, 1804 .handle_interrupt = kszphy_handle_interrupt, 1805 .get_sset_count = kszphy_get_sset_count, 1806 .get_strings = kszphy_get_strings, 1807 .get_stats = kszphy_get_stats, 1808 .suspend = kszphy_suspend, 1809 .resume = kszphy_resume, 1810 .cable_test_start = ksz886x_cable_test_start, 1811 .cable_test_get_status = ksz886x_cable_test_get_status, 1812 }, { 1813 .phy_id = PHY_ID_KSZ8061, 1814 .name = "Micrel KSZ8061", 1815 .phy_id_mask = MICREL_PHY_ID_MASK, 1816 /* PHY_BASIC_FEATURES */ 1817 .config_init = ksz8061_config_init, 1818 .config_intr = kszphy_config_intr, 1819 .handle_interrupt = kszphy_handle_interrupt, 1820 .suspend = genphy_suspend, 1821 .resume = genphy_resume, 1822 }, { 1823 .phy_id = PHY_ID_KSZ9021, 1824 .phy_id_mask = 0x000ffffe, 1825 .name = "Micrel KSZ9021 Gigabit PHY", 1826 /* PHY_GBIT_FEATURES */ 1827 .driver_data = &ksz9021_type, 1828 .probe = kszphy_probe, 1829 .get_features = ksz9031_get_features, 1830 .config_init = ksz9021_config_init, 1831 .config_intr = kszphy_config_intr, 1832 .handle_interrupt = kszphy_handle_interrupt, 1833 .get_sset_count = kszphy_get_sset_count, 1834 .get_strings = kszphy_get_strings, 1835 .get_stats = kszphy_get_stats, 1836 .suspend = genphy_suspend, 1837 .resume = genphy_resume, 1838 .read_mmd = genphy_read_mmd_unsupported, 1839 .write_mmd = genphy_write_mmd_unsupported, 1840 }, { 1841 .phy_id = PHY_ID_KSZ9031, 1842 .phy_id_mask = MICREL_PHY_ID_MASK, 1843 .name = "Micrel KSZ9031 Gigabit PHY", 1844 .driver_data = &ksz9021_type, 1845 .probe = kszphy_probe, 1846 .get_features = ksz9031_get_features, 1847 .config_init = ksz9031_config_init, 1848 .soft_reset = genphy_soft_reset, 1849 .read_status = ksz9031_read_status, 1850 .config_intr = kszphy_config_intr, 1851 .handle_interrupt = kszphy_handle_interrupt, 1852 .get_sset_count = kszphy_get_sset_count, 1853 .get_strings = kszphy_get_strings, 1854 .get_stats = kszphy_get_stats, 1855 .suspend = genphy_suspend, 1856 .resume = kszphy_resume, 1857 }, { 1858 .phy_id = PHY_ID_LAN8814, 1859 .phy_id_mask = MICREL_PHY_ID_MASK, 1860 .name = "Microchip INDY Gigabit Quad PHY", 1861 .driver_data = &ksz9021_type, 1862 .probe = kszphy_probe, 1863 .soft_reset = genphy_soft_reset, 1864 .read_status = ksz9031_read_status, 1865 .get_sset_count = kszphy_get_sset_count, 1866 .get_strings = kszphy_get_strings, 1867 .get_stats = kszphy_get_stats, 1868 .suspend = genphy_suspend, 1869 .resume = kszphy_resume, 1870 .config_intr = lan8814_config_intr, 1871 .handle_interrupt = lan8814_handle_interrupt, 1872 }, { 1873 .phy_id = PHY_ID_LAN8804, 1874 .phy_id_mask = MICREL_PHY_ID_MASK, 1875 .name = "Microchip LAN966X Gigabit PHY", 1876 .config_init = lan8804_config_init, 1877 .driver_data = &ksz9021_type, 1878 .probe = kszphy_probe, 1879 .soft_reset = genphy_soft_reset, 1880 .read_status = ksz9031_read_status, 1881 .get_sset_count = kszphy_get_sset_count, 1882 .get_strings = kszphy_get_strings, 1883 .get_stats = kszphy_get_stats, 1884 .suspend = genphy_suspend, 1885 .resume = kszphy_resume, 1886 }, { 1887 .phy_id = PHY_ID_KSZ9131, 1888 .phy_id_mask = MICREL_PHY_ID_MASK, 1889 .name = "Microchip KSZ9131 Gigabit PHY", 1890 /* PHY_GBIT_FEATURES */ 1891 .driver_data = &ksz9021_type, 1892 .probe = kszphy_probe, 1893 .config_init = ksz9131_config_init, 1894 .config_intr = kszphy_config_intr, 1895 .handle_interrupt = kszphy_handle_interrupt, 1896 .get_sset_count = kszphy_get_sset_count, 1897 .get_strings = kszphy_get_strings, 1898 .get_stats = kszphy_get_stats, 1899 .suspend = genphy_suspend, 1900 .resume = kszphy_resume, 1901 }, { 1902 .phy_id = PHY_ID_KSZ8873MLL, 1903 .phy_id_mask = MICREL_PHY_ID_MASK, 1904 .name = "Micrel KSZ8873MLL Switch", 1905 /* PHY_BASIC_FEATURES */ 1906 .config_init = kszphy_config_init, 1907 .config_aneg = ksz8873mll_config_aneg, 1908 .read_status = ksz8873mll_read_status, 1909 .suspend = genphy_suspend, 1910 .resume = genphy_resume, 1911 }, { 1912 .phy_id = PHY_ID_KSZ886X, 1913 .phy_id_mask = MICREL_PHY_ID_MASK, 1914 .name = "Micrel KSZ8851 Ethernet MAC or KSZ886X Switch", 1915 /* PHY_BASIC_FEATURES */ 1916 .flags = PHY_POLL_CABLE_TEST, 1917 .config_init = kszphy_config_init, 1918 .config_aneg = ksz886x_config_aneg, 1919 .read_status = ksz886x_read_status, 1920 .suspend = genphy_suspend, 1921 .resume = genphy_resume, 1922 .cable_test_start = ksz886x_cable_test_start, 1923 .cable_test_get_status = ksz886x_cable_test_get_status, 1924 }, { 1925 .name = "Micrel KSZ87XX Switch", 1926 /* PHY_BASIC_FEATURES */ 1927 .config_init = kszphy_config_init, 1928 .match_phy_device = ksz8795_match_phy_device, 1929 .suspend = genphy_suspend, 1930 .resume = genphy_resume, 1931 }, { 1932 .phy_id = PHY_ID_KSZ9477, 1933 .phy_id_mask = MICREL_PHY_ID_MASK, 1934 .name = "Microchip KSZ9477", 1935 /* PHY_GBIT_FEATURES */ 1936 .config_init = kszphy_config_init, 1937 .suspend = genphy_suspend, 1938 .resume = genphy_resume, 1939 } }; 1940 1941 module_phy_driver(ksphy_driver); 1942 1943 MODULE_DESCRIPTION("Micrel PHY driver"); 1944 MODULE_AUTHOR("David J. Choi"); 1945 MODULE_LICENSE("GPL"); 1946 1947 static struct mdio_device_id __maybe_unused micrel_tbl[] = { 1948 { PHY_ID_KSZ9021, 0x000ffffe }, 1949 { PHY_ID_KSZ9031, MICREL_PHY_ID_MASK }, 1950 { PHY_ID_KSZ9131, MICREL_PHY_ID_MASK }, 1951 { PHY_ID_KSZ8001, 0x00fffffc }, 1952 { PHY_ID_KS8737, MICREL_PHY_ID_MASK }, 1953 { PHY_ID_KSZ8021, 0x00ffffff }, 1954 { PHY_ID_KSZ8031, 0x00ffffff }, 1955 { PHY_ID_KSZ8041, MICREL_PHY_ID_MASK }, 1956 { PHY_ID_KSZ8051, MICREL_PHY_ID_MASK }, 1957 { PHY_ID_KSZ8061, MICREL_PHY_ID_MASK }, 1958 { PHY_ID_KSZ8081, MICREL_PHY_ID_MASK }, 1959 { PHY_ID_KSZ8873MLL, MICREL_PHY_ID_MASK }, 1960 { PHY_ID_KSZ886X, MICREL_PHY_ID_MASK }, 1961 { PHY_ID_LAN8814, MICREL_PHY_ID_MASK }, 1962 { PHY_ID_LAN8804, MICREL_PHY_ID_MASK }, 1963 { } 1964 }; 1965 1966 MODULE_DEVICE_TABLE(mdio, micrel_tbl); 1967