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/kernel.h> 24 #include <linux/module.h> 25 #include <linux/phy.h> 26 #include <linux/micrel_phy.h> 27 #include <linux/of.h> 28 #include <linux/clk.h> 29 #include <linux/delay.h> 30 31 /* Operation Mode Strap Override */ 32 #define MII_KSZPHY_OMSO 0x16 33 #define KSZPHY_OMSO_FACTORY_TEST BIT(15) 34 #define KSZPHY_OMSO_B_CAST_OFF BIT(9) 35 #define KSZPHY_OMSO_NAND_TREE_ON BIT(5) 36 #define KSZPHY_OMSO_RMII_OVERRIDE BIT(1) 37 #define KSZPHY_OMSO_MII_OVERRIDE BIT(0) 38 39 /* general Interrupt control/status reg in vendor specific block. */ 40 #define MII_KSZPHY_INTCS 0x1B 41 #define KSZPHY_INTCS_JABBER BIT(15) 42 #define KSZPHY_INTCS_RECEIVE_ERR BIT(14) 43 #define KSZPHY_INTCS_PAGE_RECEIVE BIT(13) 44 #define KSZPHY_INTCS_PARELLEL BIT(12) 45 #define KSZPHY_INTCS_LINK_PARTNER_ACK BIT(11) 46 #define KSZPHY_INTCS_LINK_DOWN BIT(10) 47 #define KSZPHY_INTCS_REMOTE_FAULT BIT(9) 48 #define KSZPHY_INTCS_LINK_UP BIT(8) 49 #define KSZPHY_INTCS_ALL (KSZPHY_INTCS_LINK_UP |\ 50 KSZPHY_INTCS_LINK_DOWN) 51 52 /* PHY Control 1 */ 53 #define MII_KSZPHY_CTRL_1 0x1e 54 55 /* PHY Control 2 / PHY Control (if no PHY Control 1) */ 56 #define MII_KSZPHY_CTRL_2 0x1f 57 #define MII_KSZPHY_CTRL MII_KSZPHY_CTRL_2 58 /* bitmap of PHY register to set interrupt mode */ 59 #define KSZPHY_CTRL_INT_ACTIVE_HIGH BIT(9) 60 #define KSZPHY_RMII_REF_CLK_SEL BIT(7) 61 62 /* Write/read to/from extended registers */ 63 #define MII_KSZPHY_EXTREG 0x0b 64 #define KSZPHY_EXTREG_WRITE 0x8000 65 66 #define MII_KSZPHY_EXTREG_WRITE 0x0c 67 #define MII_KSZPHY_EXTREG_READ 0x0d 68 69 /* Extended registers */ 70 #define MII_KSZPHY_CLK_CONTROL_PAD_SKEW 0x104 71 #define MII_KSZPHY_RX_DATA_PAD_SKEW 0x105 72 #define MII_KSZPHY_TX_DATA_PAD_SKEW 0x106 73 74 #define PS_TO_REG 200 75 76 struct kszphy_hw_stat { 77 const char *string; 78 u8 reg; 79 u8 bits; 80 }; 81 82 static struct kszphy_hw_stat kszphy_hw_stats[] = { 83 { "phy_receive_errors", 21, 16}, 84 { "phy_idle_errors", 10, 8 }, 85 }; 86 87 struct kszphy_type { 88 u32 led_mode_reg; 89 u16 interrupt_level_mask; 90 bool has_broadcast_disable; 91 bool has_nand_tree_disable; 92 bool has_rmii_ref_clk_sel; 93 }; 94 95 struct kszphy_priv { 96 const struct kszphy_type *type; 97 int led_mode; 98 bool rmii_ref_clk_sel; 99 bool rmii_ref_clk_sel_val; 100 u64 stats[ARRAY_SIZE(kszphy_hw_stats)]; 101 }; 102 103 static const struct kszphy_type ksz8021_type = { 104 .led_mode_reg = MII_KSZPHY_CTRL_2, 105 .has_broadcast_disable = true, 106 .has_nand_tree_disable = true, 107 .has_rmii_ref_clk_sel = true, 108 }; 109 110 static const struct kszphy_type ksz8041_type = { 111 .led_mode_reg = MII_KSZPHY_CTRL_1, 112 }; 113 114 static const struct kszphy_type ksz8051_type = { 115 .led_mode_reg = MII_KSZPHY_CTRL_2, 116 .has_nand_tree_disable = true, 117 }; 118 119 static const struct kszphy_type ksz8081_type = { 120 .led_mode_reg = MII_KSZPHY_CTRL_2, 121 .has_broadcast_disable = true, 122 .has_nand_tree_disable = true, 123 .has_rmii_ref_clk_sel = true, 124 }; 125 126 static const struct kszphy_type ks8737_type = { 127 .interrupt_level_mask = BIT(14), 128 }; 129 130 static const struct kszphy_type ksz9021_type = { 131 .interrupt_level_mask = BIT(14), 132 }; 133 134 static int kszphy_extended_write(struct phy_device *phydev, 135 u32 regnum, u16 val) 136 { 137 phy_write(phydev, MII_KSZPHY_EXTREG, KSZPHY_EXTREG_WRITE | regnum); 138 return phy_write(phydev, MII_KSZPHY_EXTREG_WRITE, val); 139 } 140 141 static int kszphy_extended_read(struct phy_device *phydev, 142 u32 regnum) 143 { 144 phy_write(phydev, MII_KSZPHY_EXTREG, regnum); 145 return phy_read(phydev, MII_KSZPHY_EXTREG_READ); 146 } 147 148 static int kszphy_ack_interrupt(struct phy_device *phydev) 149 { 150 /* bit[7..0] int status, which is a read and clear register. */ 151 int rc; 152 153 rc = phy_read(phydev, MII_KSZPHY_INTCS); 154 155 return (rc < 0) ? rc : 0; 156 } 157 158 static int kszphy_config_intr(struct phy_device *phydev) 159 { 160 const struct kszphy_type *type = phydev->drv->driver_data; 161 int temp; 162 u16 mask; 163 164 if (type && type->interrupt_level_mask) 165 mask = type->interrupt_level_mask; 166 else 167 mask = KSZPHY_CTRL_INT_ACTIVE_HIGH; 168 169 /* set the interrupt pin active low */ 170 temp = phy_read(phydev, MII_KSZPHY_CTRL); 171 if (temp < 0) 172 return temp; 173 temp &= ~mask; 174 phy_write(phydev, MII_KSZPHY_CTRL, temp); 175 176 /* enable / disable interrupts */ 177 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) 178 temp = KSZPHY_INTCS_ALL; 179 else 180 temp = 0; 181 182 return phy_write(phydev, MII_KSZPHY_INTCS, temp); 183 } 184 185 static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val) 186 { 187 int ctrl; 188 189 ctrl = phy_read(phydev, MII_KSZPHY_CTRL); 190 if (ctrl < 0) 191 return ctrl; 192 193 if (val) 194 ctrl |= KSZPHY_RMII_REF_CLK_SEL; 195 else 196 ctrl &= ~KSZPHY_RMII_REF_CLK_SEL; 197 198 return phy_write(phydev, MII_KSZPHY_CTRL, ctrl); 199 } 200 201 static int kszphy_setup_led(struct phy_device *phydev, u32 reg, int val) 202 { 203 int rc, temp, shift; 204 205 switch (reg) { 206 case MII_KSZPHY_CTRL_1: 207 shift = 14; 208 break; 209 case MII_KSZPHY_CTRL_2: 210 shift = 4; 211 break; 212 default: 213 return -EINVAL; 214 } 215 216 temp = phy_read(phydev, reg); 217 if (temp < 0) { 218 rc = temp; 219 goto out; 220 } 221 222 temp &= ~(3 << shift); 223 temp |= val << shift; 224 rc = phy_write(phydev, reg, temp); 225 out: 226 if (rc < 0) 227 phydev_err(phydev, "failed to set led mode\n"); 228 229 return rc; 230 } 231 232 /* Disable PHY address 0 as the broadcast address, so that it can be used as a 233 * unique (non-broadcast) address on a shared bus. 234 */ 235 static int kszphy_broadcast_disable(struct phy_device *phydev) 236 { 237 int ret; 238 239 ret = phy_read(phydev, MII_KSZPHY_OMSO); 240 if (ret < 0) 241 goto out; 242 243 ret = phy_write(phydev, MII_KSZPHY_OMSO, ret | KSZPHY_OMSO_B_CAST_OFF); 244 out: 245 if (ret) 246 phydev_err(phydev, "failed to disable broadcast address\n"); 247 248 return ret; 249 } 250 251 static int kszphy_nand_tree_disable(struct phy_device *phydev) 252 { 253 int ret; 254 255 ret = phy_read(phydev, MII_KSZPHY_OMSO); 256 if (ret < 0) 257 goto out; 258 259 if (!(ret & KSZPHY_OMSO_NAND_TREE_ON)) 260 return 0; 261 262 ret = phy_write(phydev, MII_KSZPHY_OMSO, 263 ret & ~KSZPHY_OMSO_NAND_TREE_ON); 264 out: 265 if (ret) 266 phydev_err(phydev, "failed to disable NAND tree mode\n"); 267 268 return ret; 269 } 270 271 /* Some config bits need to be set again on resume, handle them here. */ 272 static int kszphy_config_reset(struct phy_device *phydev) 273 { 274 struct kszphy_priv *priv = phydev->priv; 275 int ret; 276 277 if (priv->rmii_ref_clk_sel) { 278 ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val); 279 if (ret) { 280 phydev_err(phydev, 281 "failed to set rmii reference clock\n"); 282 return ret; 283 } 284 } 285 286 if (priv->led_mode >= 0) 287 kszphy_setup_led(phydev, priv->type->led_mode_reg, priv->led_mode); 288 289 return 0; 290 } 291 292 static int kszphy_config_init(struct phy_device *phydev) 293 { 294 struct kszphy_priv *priv = phydev->priv; 295 const struct kszphy_type *type; 296 297 if (!priv) 298 return 0; 299 300 type = priv->type; 301 302 if (type->has_broadcast_disable) 303 kszphy_broadcast_disable(phydev); 304 305 if (type->has_nand_tree_disable) 306 kszphy_nand_tree_disable(phydev); 307 308 return kszphy_config_reset(phydev); 309 } 310 311 static int ksz8041_config_init(struct phy_device *phydev) 312 { 313 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; 314 315 struct device_node *of_node = phydev->mdio.dev.of_node; 316 317 /* Limit supported and advertised modes in fiber mode */ 318 if (of_property_read_bool(of_node, "micrel,fiber-mode")) { 319 phydev->dev_flags |= MICREL_PHY_FXEN; 320 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, mask); 321 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, mask); 322 323 linkmode_and(phydev->supported, phydev->supported, mask); 324 linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, 325 phydev->supported); 326 linkmode_and(phydev->advertising, phydev->advertising, mask); 327 linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, 328 phydev->advertising); 329 phydev->autoneg = AUTONEG_DISABLE; 330 } 331 332 return kszphy_config_init(phydev); 333 } 334 335 static int ksz8041_config_aneg(struct phy_device *phydev) 336 { 337 /* Skip auto-negotiation in fiber mode */ 338 if (phydev->dev_flags & MICREL_PHY_FXEN) { 339 phydev->speed = SPEED_100; 340 return 0; 341 } 342 343 return genphy_config_aneg(phydev); 344 } 345 346 static int ksz8051_ksz8795_match_phy_device(struct phy_device *phydev, 347 const u32 ksz_phy_id) 348 { 349 int ret; 350 351 if ((phydev->phy_id & MICREL_PHY_ID_MASK) != ksz_phy_id) 352 return 0; 353 354 ret = phy_read(phydev, MII_BMSR); 355 if (ret < 0) 356 return ret; 357 358 /* KSZ8051 PHY and KSZ8794/KSZ8795/KSZ8765 switch share the same 359 * exact PHY ID. However, they can be told apart by the extended 360 * capability registers presence. The KSZ8051 PHY has them while 361 * the switch does not. 362 */ 363 ret &= BMSR_ERCAP; 364 if (ksz_phy_id == PHY_ID_KSZ8051) 365 return ret; 366 else 367 return !ret; 368 } 369 370 static int ksz8051_match_phy_device(struct phy_device *phydev) 371 { 372 return ksz8051_ksz8795_match_phy_device(phydev, PHY_ID_KSZ8051); 373 } 374 375 static int ksz8081_config_init(struct phy_device *phydev) 376 { 377 /* KSZPHY_OMSO_FACTORY_TEST is set at de-assertion of the reset line 378 * based on the RXER (KSZ8081RNA/RND) or TXC (KSZ8081MNX/RNB) pin. If a 379 * pull-down is missing, the factory test mode should be cleared by 380 * manually writing a 0. 381 */ 382 phy_clear_bits(phydev, MII_KSZPHY_OMSO, KSZPHY_OMSO_FACTORY_TEST); 383 384 return kszphy_config_init(phydev); 385 } 386 387 static int ksz8061_config_init(struct phy_device *phydev) 388 { 389 int ret; 390 391 ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_DEVID1, 0xB61A); 392 if (ret) 393 return ret; 394 395 return kszphy_config_init(phydev); 396 } 397 398 static int ksz8795_match_phy_device(struct phy_device *phydev) 399 { 400 return ksz8051_ksz8795_match_phy_device(phydev, PHY_ID_KSZ87XX); 401 } 402 403 static int ksz9021_load_values_from_of(struct phy_device *phydev, 404 const struct device_node *of_node, 405 u16 reg, 406 const char *field1, const char *field2, 407 const char *field3, const char *field4) 408 { 409 int val1 = -1; 410 int val2 = -2; 411 int val3 = -3; 412 int val4 = -4; 413 int newval; 414 int matches = 0; 415 416 if (!of_property_read_u32(of_node, field1, &val1)) 417 matches++; 418 419 if (!of_property_read_u32(of_node, field2, &val2)) 420 matches++; 421 422 if (!of_property_read_u32(of_node, field3, &val3)) 423 matches++; 424 425 if (!of_property_read_u32(of_node, field4, &val4)) 426 matches++; 427 428 if (!matches) 429 return 0; 430 431 if (matches < 4) 432 newval = kszphy_extended_read(phydev, reg); 433 else 434 newval = 0; 435 436 if (val1 != -1) 437 newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0); 438 439 if (val2 != -2) 440 newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4); 441 442 if (val3 != -3) 443 newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8); 444 445 if (val4 != -4) 446 newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12); 447 448 return kszphy_extended_write(phydev, reg, newval); 449 } 450 451 static int ksz9021_config_init(struct phy_device *phydev) 452 { 453 const struct device *dev = &phydev->mdio.dev; 454 const struct device_node *of_node = dev->of_node; 455 const struct device *dev_walker; 456 457 /* The Micrel driver has a deprecated option to place phy OF 458 * properties in the MAC node. Walk up the tree of devices to 459 * find a device with an OF node. 460 */ 461 dev_walker = &phydev->mdio.dev; 462 do { 463 of_node = dev_walker->of_node; 464 dev_walker = dev_walker->parent; 465 466 } while (!of_node && dev_walker); 467 468 if (of_node) { 469 ksz9021_load_values_from_of(phydev, of_node, 470 MII_KSZPHY_CLK_CONTROL_PAD_SKEW, 471 "txen-skew-ps", "txc-skew-ps", 472 "rxdv-skew-ps", "rxc-skew-ps"); 473 ksz9021_load_values_from_of(phydev, of_node, 474 MII_KSZPHY_RX_DATA_PAD_SKEW, 475 "rxd0-skew-ps", "rxd1-skew-ps", 476 "rxd2-skew-ps", "rxd3-skew-ps"); 477 ksz9021_load_values_from_of(phydev, of_node, 478 MII_KSZPHY_TX_DATA_PAD_SKEW, 479 "txd0-skew-ps", "txd1-skew-ps", 480 "txd2-skew-ps", "txd3-skew-ps"); 481 } 482 return 0; 483 } 484 485 #define KSZ9031_PS_TO_REG 60 486 487 /* Extended registers */ 488 /* MMD Address 0x0 */ 489 #define MII_KSZ9031RN_FLP_BURST_TX_LO 3 490 #define MII_KSZ9031RN_FLP_BURST_TX_HI 4 491 492 /* MMD Address 0x2 */ 493 #define MII_KSZ9031RN_CONTROL_PAD_SKEW 4 494 #define MII_KSZ9031RN_RX_CTL_M GENMASK(7, 4) 495 #define MII_KSZ9031RN_TX_CTL_M GENMASK(3, 0) 496 497 #define MII_KSZ9031RN_RX_DATA_PAD_SKEW 5 498 #define MII_KSZ9031RN_RXD3 GENMASK(15, 12) 499 #define MII_KSZ9031RN_RXD2 GENMASK(11, 8) 500 #define MII_KSZ9031RN_RXD1 GENMASK(7, 4) 501 #define MII_KSZ9031RN_RXD0 GENMASK(3, 0) 502 503 #define MII_KSZ9031RN_TX_DATA_PAD_SKEW 6 504 #define MII_KSZ9031RN_TXD3 GENMASK(15, 12) 505 #define MII_KSZ9031RN_TXD2 GENMASK(11, 8) 506 #define MII_KSZ9031RN_TXD1 GENMASK(7, 4) 507 #define MII_KSZ9031RN_TXD0 GENMASK(3, 0) 508 509 #define MII_KSZ9031RN_CLK_PAD_SKEW 8 510 #define MII_KSZ9031RN_GTX_CLK GENMASK(9, 5) 511 #define MII_KSZ9031RN_RX_CLK GENMASK(4, 0) 512 513 /* KSZ9031 has internal RGMII_IDRX = 1.2ns and RGMII_IDTX = 0ns. To 514 * provide different RGMII options we need to configure delay offset 515 * for each pad relative to build in delay. 516 */ 517 /* keep rx as "No delay adjustment" and set rx_clk to +0.60ns to get delays of 518 * 1.80ns 519 */ 520 #define RX_ID 0x7 521 #define RX_CLK_ID 0x19 522 523 /* set rx to +0.30ns and rx_clk to -0.90ns to compensate the 524 * internal 1.2ns delay. 525 */ 526 #define RX_ND 0xc 527 #define RX_CLK_ND 0x0 528 529 /* set tx to -0.42ns and tx_clk to +0.96ns to get 1.38ns delay */ 530 #define TX_ID 0x0 531 #define TX_CLK_ID 0x1f 532 533 /* set tx and tx_clk to "No delay adjustment" to keep 0ns 534 * dealy 535 */ 536 #define TX_ND 0x7 537 #define TX_CLK_ND 0xf 538 539 /* MMD Address 0x1C */ 540 #define MII_KSZ9031RN_EDPD 0x23 541 #define MII_KSZ9031RN_EDPD_ENABLE BIT(0) 542 543 static int ksz9031_of_load_skew_values(struct phy_device *phydev, 544 const struct device_node *of_node, 545 u16 reg, size_t field_sz, 546 const char *field[], u8 numfields, 547 bool *update) 548 { 549 int val[4] = {-1, -2, -3, -4}; 550 int matches = 0; 551 u16 mask; 552 u16 maxval; 553 u16 newval; 554 int i; 555 556 for (i = 0; i < numfields; i++) 557 if (!of_property_read_u32(of_node, field[i], val + i)) 558 matches++; 559 560 if (!matches) 561 return 0; 562 563 *update |= true; 564 565 if (matches < numfields) 566 newval = phy_read_mmd(phydev, 2, reg); 567 else 568 newval = 0; 569 570 maxval = (field_sz == 4) ? 0xf : 0x1f; 571 for (i = 0; i < numfields; i++) 572 if (val[i] != -(i + 1)) { 573 mask = 0xffff; 574 mask ^= maxval << (field_sz * i); 575 newval = (newval & mask) | 576 (((val[i] / KSZ9031_PS_TO_REG) & maxval) 577 << (field_sz * i)); 578 } 579 580 return phy_write_mmd(phydev, 2, reg, newval); 581 } 582 583 /* Center KSZ9031RNX FLP timing at 16ms. */ 584 static int ksz9031_center_flp_timing(struct phy_device *phydev) 585 { 586 int result; 587 588 result = phy_write_mmd(phydev, 0, MII_KSZ9031RN_FLP_BURST_TX_HI, 589 0x0006); 590 if (result) 591 return result; 592 593 result = phy_write_mmd(phydev, 0, MII_KSZ9031RN_FLP_BURST_TX_LO, 594 0x1A80); 595 if (result) 596 return result; 597 598 return genphy_restart_aneg(phydev); 599 } 600 601 /* Enable energy-detect power-down mode */ 602 static int ksz9031_enable_edpd(struct phy_device *phydev) 603 { 604 int reg; 605 606 reg = phy_read_mmd(phydev, 0x1C, MII_KSZ9031RN_EDPD); 607 if (reg < 0) 608 return reg; 609 return phy_write_mmd(phydev, 0x1C, MII_KSZ9031RN_EDPD, 610 reg | MII_KSZ9031RN_EDPD_ENABLE); 611 } 612 613 static int ksz9031_config_rgmii_delay(struct phy_device *phydev) 614 { 615 u16 rx, tx, rx_clk, tx_clk; 616 int ret; 617 618 switch (phydev->interface) { 619 case PHY_INTERFACE_MODE_RGMII: 620 tx = TX_ND; 621 tx_clk = TX_CLK_ND; 622 rx = RX_ND; 623 rx_clk = RX_CLK_ND; 624 break; 625 case PHY_INTERFACE_MODE_RGMII_ID: 626 tx = TX_ID; 627 tx_clk = TX_CLK_ID; 628 rx = RX_ID; 629 rx_clk = RX_CLK_ID; 630 break; 631 case PHY_INTERFACE_MODE_RGMII_RXID: 632 tx = TX_ND; 633 tx_clk = TX_CLK_ND; 634 rx = RX_ID; 635 rx_clk = RX_CLK_ID; 636 break; 637 case PHY_INTERFACE_MODE_RGMII_TXID: 638 tx = TX_ID; 639 tx_clk = TX_CLK_ID; 640 rx = RX_ND; 641 rx_clk = RX_CLK_ND; 642 break; 643 default: 644 return 0; 645 } 646 647 ret = phy_write_mmd(phydev, 2, MII_KSZ9031RN_CONTROL_PAD_SKEW, 648 FIELD_PREP(MII_KSZ9031RN_RX_CTL_M, rx) | 649 FIELD_PREP(MII_KSZ9031RN_TX_CTL_M, tx)); 650 if (ret < 0) 651 return ret; 652 653 ret = phy_write_mmd(phydev, 2, MII_KSZ9031RN_RX_DATA_PAD_SKEW, 654 FIELD_PREP(MII_KSZ9031RN_RXD3, rx) | 655 FIELD_PREP(MII_KSZ9031RN_RXD2, rx) | 656 FIELD_PREP(MII_KSZ9031RN_RXD1, rx) | 657 FIELD_PREP(MII_KSZ9031RN_RXD0, rx)); 658 if (ret < 0) 659 return ret; 660 661 ret = phy_write_mmd(phydev, 2, MII_KSZ9031RN_TX_DATA_PAD_SKEW, 662 FIELD_PREP(MII_KSZ9031RN_TXD3, tx) | 663 FIELD_PREP(MII_KSZ9031RN_TXD2, tx) | 664 FIELD_PREP(MII_KSZ9031RN_TXD1, tx) | 665 FIELD_PREP(MII_KSZ9031RN_TXD0, tx)); 666 if (ret < 0) 667 return ret; 668 669 return phy_write_mmd(phydev, 2, MII_KSZ9031RN_CLK_PAD_SKEW, 670 FIELD_PREP(MII_KSZ9031RN_GTX_CLK, tx_clk) | 671 FIELD_PREP(MII_KSZ9031RN_RX_CLK, rx_clk)); 672 } 673 674 static int ksz9031_config_init(struct phy_device *phydev) 675 { 676 const struct device *dev = &phydev->mdio.dev; 677 const struct device_node *of_node = dev->of_node; 678 static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"}; 679 static const char *rx_data_skews[4] = { 680 "rxd0-skew-ps", "rxd1-skew-ps", 681 "rxd2-skew-ps", "rxd3-skew-ps" 682 }; 683 static const char *tx_data_skews[4] = { 684 "txd0-skew-ps", "txd1-skew-ps", 685 "txd2-skew-ps", "txd3-skew-ps" 686 }; 687 static const char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"}; 688 const struct device *dev_walker; 689 int result; 690 691 result = ksz9031_enable_edpd(phydev); 692 if (result < 0) 693 return result; 694 695 /* The Micrel driver has a deprecated option to place phy OF 696 * properties in the MAC node. Walk up the tree of devices to 697 * find a device with an OF node. 698 */ 699 dev_walker = &phydev->mdio.dev; 700 do { 701 of_node = dev_walker->of_node; 702 dev_walker = dev_walker->parent; 703 } while (!of_node && dev_walker); 704 705 if (of_node) { 706 bool update = false; 707 708 if (phy_interface_is_rgmii(phydev)) { 709 result = ksz9031_config_rgmii_delay(phydev); 710 if (result < 0) 711 return result; 712 } 713 714 ksz9031_of_load_skew_values(phydev, of_node, 715 MII_KSZ9031RN_CLK_PAD_SKEW, 5, 716 clk_skews, 2, &update); 717 718 ksz9031_of_load_skew_values(phydev, of_node, 719 MII_KSZ9031RN_CONTROL_PAD_SKEW, 4, 720 control_skews, 2, &update); 721 722 ksz9031_of_load_skew_values(phydev, of_node, 723 MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4, 724 rx_data_skews, 4, &update); 725 726 ksz9031_of_load_skew_values(phydev, of_node, 727 MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4, 728 tx_data_skews, 4, &update); 729 730 if (update && phydev->interface != PHY_INTERFACE_MODE_RGMII) 731 phydev_warn(phydev, 732 "*-skew-ps values should be used only with phy-mode = \"rgmii\"\n"); 733 734 /* Silicon Errata Sheet (DS80000691D or DS80000692D): 735 * When the device links in the 1000BASE-T slave mode only, 736 * the optional 125MHz reference output clock (CLK125_NDO) 737 * has wide duty cycle variation. 738 * 739 * The optional CLK125_NDO clock does not meet the RGMII 740 * 45/55 percent (min/max) duty cycle requirement and therefore 741 * cannot be used directly by the MAC side for clocking 742 * applications that have setup/hold time requirements on 743 * rising and falling clock edges. 744 * 745 * Workaround: 746 * Force the phy to be the master to receive a stable clock 747 * which meets the duty cycle requirement. 748 */ 749 if (of_property_read_bool(of_node, "micrel,force-master")) { 750 result = phy_read(phydev, MII_CTRL1000); 751 if (result < 0) 752 goto err_force_master; 753 754 /* enable master mode, config & prefer master */ 755 result |= CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER; 756 result = phy_write(phydev, MII_CTRL1000, result); 757 if (result < 0) 758 goto err_force_master; 759 } 760 } 761 762 return ksz9031_center_flp_timing(phydev); 763 764 err_force_master: 765 phydev_err(phydev, "failed to force the phy to master mode\n"); 766 return result; 767 } 768 769 #define KSZ9131_SKEW_5BIT_MAX 2400 770 #define KSZ9131_SKEW_4BIT_MAX 800 771 #define KSZ9131_OFFSET 700 772 #define KSZ9131_STEP 100 773 774 static int ksz9131_of_load_skew_values(struct phy_device *phydev, 775 struct device_node *of_node, 776 u16 reg, size_t field_sz, 777 char *field[], u8 numfields) 778 { 779 int val[4] = {-(1 + KSZ9131_OFFSET), -(2 + KSZ9131_OFFSET), 780 -(3 + KSZ9131_OFFSET), -(4 + KSZ9131_OFFSET)}; 781 int skewval, skewmax = 0; 782 int matches = 0; 783 u16 maxval; 784 u16 newval; 785 u16 mask; 786 int i; 787 788 /* psec properties in dts should mean x pico seconds */ 789 if (field_sz == 5) 790 skewmax = KSZ9131_SKEW_5BIT_MAX; 791 else 792 skewmax = KSZ9131_SKEW_4BIT_MAX; 793 794 for (i = 0; i < numfields; i++) 795 if (!of_property_read_s32(of_node, field[i], &skewval)) { 796 if (skewval < -KSZ9131_OFFSET) 797 skewval = -KSZ9131_OFFSET; 798 else if (skewval > skewmax) 799 skewval = skewmax; 800 801 val[i] = skewval + KSZ9131_OFFSET; 802 matches++; 803 } 804 805 if (!matches) 806 return 0; 807 808 if (matches < numfields) 809 newval = phy_read_mmd(phydev, 2, reg); 810 else 811 newval = 0; 812 813 maxval = (field_sz == 4) ? 0xf : 0x1f; 814 for (i = 0; i < numfields; i++) 815 if (val[i] != -(i + 1 + KSZ9131_OFFSET)) { 816 mask = 0xffff; 817 mask ^= maxval << (field_sz * i); 818 newval = (newval & mask) | 819 (((val[i] / KSZ9131_STEP) & maxval) 820 << (field_sz * i)); 821 } 822 823 return phy_write_mmd(phydev, 2, reg, newval); 824 } 825 826 #define KSZ9131RN_MMD_COMMON_CTRL_REG 2 827 #define KSZ9131RN_RXC_DLL_CTRL 76 828 #define KSZ9131RN_TXC_DLL_CTRL 77 829 #define KSZ9131RN_DLL_CTRL_BYPASS BIT_MASK(12) 830 #define KSZ9131RN_DLL_ENABLE_DELAY 0 831 #define KSZ9131RN_DLL_DISABLE_DELAY BIT(12) 832 833 static int ksz9131_config_rgmii_delay(struct phy_device *phydev) 834 { 835 u16 rxcdll_val, txcdll_val; 836 int ret; 837 838 switch (phydev->interface) { 839 case PHY_INTERFACE_MODE_RGMII: 840 rxcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 841 txcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 842 break; 843 case PHY_INTERFACE_MODE_RGMII_ID: 844 rxcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 845 txcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 846 break; 847 case PHY_INTERFACE_MODE_RGMII_RXID: 848 rxcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 849 txcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 850 break; 851 case PHY_INTERFACE_MODE_RGMII_TXID: 852 rxcdll_val = KSZ9131RN_DLL_DISABLE_DELAY; 853 txcdll_val = KSZ9131RN_DLL_ENABLE_DELAY; 854 break; 855 default: 856 return 0; 857 } 858 859 ret = phy_modify_mmd(phydev, KSZ9131RN_MMD_COMMON_CTRL_REG, 860 KSZ9131RN_RXC_DLL_CTRL, KSZ9131RN_DLL_CTRL_BYPASS, 861 rxcdll_val); 862 if (ret < 0) 863 return ret; 864 865 return phy_modify_mmd(phydev, KSZ9131RN_MMD_COMMON_CTRL_REG, 866 KSZ9131RN_TXC_DLL_CTRL, KSZ9131RN_DLL_CTRL_BYPASS, 867 txcdll_val); 868 } 869 870 static int ksz9131_config_init(struct phy_device *phydev) 871 { 872 const struct device *dev = &phydev->mdio.dev; 873 struct device_node *of_node = dev->of_node; 874 char *clk_skews[2] = {"rxc-skew-psec", "txc-skew-psec"}; 875 char *rx_data_skews[4] = { 876 "rxd0-skew-psec", "rxd1-skew-psec", 877 "rxd2-skew-psec", "rxd3-skew-psec" 878 }; 879 char *tx_data_skews[4] = { 880 "txd0-skew-psec", "txd1-skew-psec", 881 "txd2-skew-psec", "txd3-skew-psec" 882 }; 883 char *control_skews[2] = {"txen-skew-psec", "rxdv-skew-psec"}; 884 const struct device *dev_walker; 885 int ret; 886 887 dev_walker = &phydev->mdio.dev; 888 do { 889 of_node = dev_walker->of_node; 890 dev_walker = dev_walker->parent; 891 } while (!of_node && dev_walker); 892 893 if (!of_node) 894 return 0; 895 896 if (phy_interface_is_rgmii(phydev)) { 897 ret = ksz9131_config_rgmii_delay(phydev); 898 if (ret < 0) 899 return ret; 900 } 901 902 ret = ksz9131_of_load_skew_values(phydev, of_node, 903 MII_KSZ9031RN_CLK_PAD_SKEW, 5, 904 clk_skews, 2); 905 if (ret < 0) 906 return ret; 907 908 ret = ksz9131_of_load_skew_values(phydev, of_node, 909 MII_KSZ9031RN_CONTROL_PAD_SKEW, 4, 910 control_skews, 2); 911 if (ret < 0) 912 return ret; 913 914 ret = ksz9131_of_load_skew_values(phydev, of_node, 915 MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4, 916 rx_data_skews, 4); 917 if (ret < 0) 918 return ret; 919 920 ret = ksz9131_of_load_skew_values(phydev, of_node, 921 MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4, 922 tx_data_skews, 4); 923 if (ret < 0) 924 return ret; 925 926 return 0; 927 } 928 929 #define KSZ8873MLL_GLOBAL_CONTROL_4 0x06 930 #define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX BIT(6) 931 #define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED BIT(4) 932 static int ksz8873mll_read_status(struct phy_device *phydev) 933 { 934 int regval; 935 936 /* dummy read */ 937 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4); 938 939 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4); 940 941 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX) 942 phydev->duplex = DUPLEX_HALF; 943 else 944 phydev->duplex = DUPLEX_FULL; 945 946 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED) 947 phydev->speed = SPEED_10; 948 else 949 phydev->speed = SPEED_100; 950 951 phydev->link = 1; 952 phydev->pause = phydev->asym_pause = 0; 953 954 return 0; 955 } 956 957 static int ksz9031_get_features(struct phy_device *phydev) 958 { 959 int ret; 960 961 ret = genphy_read_abilities(phydev); 962 if (ret < 0) 963 return ret; 964 965 /* Silicon Errata Sheet (DS80000691D or DS80000692D): 966 * Whenever the device's Asymmetric Pause capability is set to 1, 967 * link-up may fail after a link-up to link-down transition. 968 * 969 * The Errata Sheet is for ksz9031, but ksz9021 has the same issue 970 * 971 * Workaround: 972 * Do not enable the Asymmetric Pause capability bit. 973 */ 974 linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported); 975 976 /* We force setting the Pause capability as the core will force the 977 * Asymmetric Pause capability to 1 otherwise. 978 */ 979 linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported); 980 981 return 0; 982 } 983 984 static int ksz9031_read_status(struct phy_device *phydev) 985 { 986 int err; 987 int regval; 988 989 err = genphy_read_status(phydev); 990 if (err) 991 return err; 992 993 /* Make sure the PHY is not broken. Read idle error count, 994 * and reset the PHY if it is maxed out. 995 */ 996 regval = phy_read(phydev, MII_STAT1000); 997 if ((regval & 0xFF) == 0xFF) { 998 phy_init_hw(phydev); 999 phydev->link = 0; 1000 if (phydev->drv->config_intr && phy_interrupt_is_valid(phydev)) 1001 phydev->drv->config_intr(phydev); 1002 return genphy_config_aneg(phydev); 1003 } 1004 1005 return 0; 1006 } 1007 1008 static int ksz8873mll_config_aneg(struct phy_device *phydev) 1009 { 1010 return 0; 1011 } 1012 1013 static int kszphy_get_sset_count(struct phy_device *phydev) 1014 { 1015 return ARRAY_SIZE(kszphy_hw_stats); 1016 } 1017 1018 static void kszphy_get_strings(struct phy_device *phydev, u8 *data) 1019 { 1020 int i; 1021 1022 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) { 1023 strlcpy(data + i * ETH_GSTRING_LEN, 1024 kszphy_hw_stats[i].string, ETH_GSTRING_LEN); 1025 } 1026 } 1027 1028 static u64 kszphy_get_stat(struct phy_device *phydev, int i) 1029 { 1030 struct kszphy_hw_stat stat = kszphy_hw_stats[i]; 1031 struct kszphy_priv *priv = phydev->priv; 1032 int val; 1033 u64 ret; 1034 1035 val = phy_read(phydev, stat.reg); 1036 if (val < 0) { 1037 ret = U64_MAX; 1038 } else { 1039 val = val & ((1 << stat.bits) - 1); 1040 priv->stats[i] += val; 1041 ret = priv->stats[i]; 1042 } 1043 1044 return ret; 1045 } 1046 1047 static void kszphy_get_stats(struct phy_device *phydev, 1048 struct ethtool_stats *stats, u64 *data) 1049 { 1050 int i; 1051 1052 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) 1053 data[i] = kszphy_get_stat(phydev, i); 1054 } 1055 1056 static int kszphy_suspend(struct phy_device *phydev) 1057 { 1058 /* Disable PHY Interrupts */ 1059 if (phy_interrupt_is_valid(phydev)) { 1060 phydev->interrupts = PHY_INTERRUPT_DISABLED; 1061 if (phydev->drv->config_intr) 1062 phydev->drv->config_intr(phydev); 1063 } 1064 1065 return genphy_suspend(phydev); 1066 } 1067 1068 static int kszphy_resume(struct phy_device *phydev) 1069 { 1070 int ret; 1071 1072 genphy_resume(phydev); 1073 1074 /* After switching from power-down to normal mode, an internal global 1075 * reset is automatically generated. Wait a minimum of 1 ms before 1076 * read/write access to the PHY registers. 1077 */ 1078 usleep_range(1000, 2000); 1079 1080 ret = kszphy_config_reset(phydev); 1081 if (ret) 1082 return ret; 1083 1084 /* Enable PHY Interrupts */ 1085 if (phy_interrupt_is_valid(phydev)) { 1086 phydev->interrupts = PHY_INTERRUPT_ENABLED; 1087 if (phydev->drv->config_intr) 1088 phydev->drv->config_intr(phydev); 1089 } 1090 1091 return 0; 1092 } 1093 1094 static int kszphy_probe(struct phy_device *phydev) 1095 { 1096 const struct kszphy_type *type = phydev->drv->driver_data; 1097 const struct device_node *np = phydev->mdio.dev.of_node; 1098 struct kszphy_priv *priv; 1099 struct clk *clk; 1100 int ret; 1101 1102 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); 1103 if (!priv) 1104 return -ENOMEM; 1105 1106 phydev->priv = priv; 1107 1108 priv->type = type; 1109 1110 if (type->led_mode_reg) { 1111 ret = of_property_read_u32(np, "micrel,led-mode", 1112 &priv->led_mode); 1113 if (ret) 1114 priv->led_mode = -1; 1115 1116 if (priv->led_mode > 3) { 1117 phydev_err(phydev, "invalid led mode: 0x%02x\n", 1118 priv->led_mode); 1119 priv->led_mode = -1; 1120 } 1121 } else { 1122 priv->led_mode = -1; 1123 } 1124 1125 clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref"); 1126 /* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */ 1127 if (!IS_ERR_OR_NULL(clk)) { 1128 unsigned long rate = clk_get_rate(clk); 1129 bool rmii_ref_clk_sel_25_mhz; 1130 1131 priv->rmii_ref_clk_sel = type->has_rmii_ref_clk_sel; 1132 rmii_ref_clk_sel_25_mhz = of_property_read_bool(np, 1133 "micrel,rmii-reference-clock-select-25-mhz"); 1134 1135 if (rate > 24500000 && rate < 25500000) { 1136 priv->rmii_ref_clk_sel_val = rmii_ref_clk_sel_25_mhz; 1137 } else if (rate > 49500000 && rate < 50500000) { 1138 priv->rmii_ref_clk_sel_val = !rmii_ref_clk_sel_25_mhz; 1139 } else { 1140 phydev_err(phydev, "Clock rate out of range: %ld\n", 1141 rate); 1142 return -EINVAL; 1143 } 1144 } 1145 1146 /* Support legacy board-file configuration */ 1147 if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) { 1148 priv->rmii_ref_clk_sel = true; 1149 priv->rmii_ref_clk_sel_val = true; 1150 } 1151 1152 return 0; 1153 } 1154 1155 static struct phy_driver ksphy_driver[] = { 1156 { 1157 .phy_id = PHY_ID_KS8737, 1158 .phy_id_mask = MICREL_PHY_ID_MASK, 1159 .name = "Micrel KS8737", 1160 /* PHY_BASIC_FEATURES */ 1161 .driver_data = &ks8737_type, 1162 .config_init = kszphy_config_init, 1163 .ack_interrupt = kszphy_ack_interrupt, 1164 .config_intr = kszphy_config_intr, 1165 .suspend = genphy_suspend, 1166 .resume = genphy_resume, 1167 }, { 1168 .phy_id = PHY_ID_KSZ8021, 1169 .phy_id_mask = 0x00ffffff, 1170 .name = "Micrel KSZ8021 or KSZ8031", 1171 /* PHY_BASIC_FEATURES */ 1172 .driver_data = &ksz8021_type, 1173 .probe = kszphy_probe, 1174 .config_init = kszphy_config_init, 1175 .ack_interrupt = kszphy_ack_interrupt, 1176 .config_intr = kszphy_config_intr, 1177 .get_sset_count = kszphy_get_sset_count, 1178 .get_strings = kszphy_get_strings, 1179 .get_stats = kszphy_get_stats, 1180 .suspend = genphy_suspend, 1181 .resume = genphy_resume, 1182 }, { 1183 .phy_id = PHY_ID_KSZ8031, 1184 .phy_id_mask = 0x00ffffff, 1185 .name = "Micrel KSZ8031", 1186 /* PHY_BASIC_FEATURES */ 1187 .driver_data = &ksz8021_type, 1188 .probe = kszphy_probe, 1189 .config_init = kszphy_config_init, 1190 .ack_interrupt = kszphy_ack_interrupt, 1191 .config_intr = kszphy_config_intr, 1192 .get_sset_count = kszphy_get_sset_count, 1193 .get_strings = kszphy_get_strings, 1194 .get_stats = kszphy_get_stats, 1195 .suspend = genphy_suspend, 1196 .resume = genphy_resume, 1197 }, { 1198 .phy_id = PHY_ID_KSZ8041, 1199 .phy_id_mask = MICREL_PHY_ID_MASK, 1200 .name = "Micrel KSZ8041", 1201 /* PHY_BASIC_FEATURES */ 1202 .driver_data = &ksz8041_type, 1203 .probe = kszphy_probe, 1204 .config_init = ksz8041_config_init, 1205 .config_aneg = ksz8041_config_aneg, 1206 .ack_interrupt = kszphy_ack_interrupt, 1207 .config_intr = kszphy_config_intr, 1208 .get_sset_count = kszphy_get_sset_count, 1209 .get_strings = kszphy_get_strings, 1210 .get_stats = kszphy_get_stats, 1211 .suspend = genphy_suspend, 1212 .resume = genphy_resume, 1213 }, { 1214 .phy_id = PHY_ID_KSZ8041RNLI, 1215 .phy_id_mask = MICREL_PHY_ID_MASK, 1216 .name = "Micrel KSZ8041RNLI", 1217 /* PHY_BASIC_FEATURES */ 1218 .driver_data = &ksz8041_type, 1219 .probe = kszphy_probe, 1220 .config_init = kszphy_config_init, 1221 .ack_interrupt = kszphy_ack_interrupt, 1222 .config_intr = kszphy_config_intr, 1223 .get_sset_count = kszphy_get_sset_count, 1224 .get_strings = kszphy_get_strings, 1225 .get_stats = kszphy_get_stats, 1226 .suspend = genphy_suspend, 1227 .resume = genphy_resume, 1228 }, { 1229 .name = "Micrel KSZ8051", 1230 /* PHY_BASIC_FEATURES */ 1231 .driver_data = &ksz8051_type, 1232 .probe = kszphy_probe, 1233 .config_init = kszphy_config_init, 1234 .ack_interrupt = kszphy_ack_interrupt, 1235 .config_intr = kszphy_config_intr, 1236 .get_sset_count = kszphy_get_sset_count, 1237 .get_strings = kszphy_get_strings, 1238 .get_stats = kszphy_get_stats, 1239 .match_phy_device = ksz8051_match_phy_device, 1240 .suspend = genphy_suspend, 1241 .resume = genphy_resume, 1242 }, { 1243 .phy_id = PHY_ID_KSZ8001, 1244 .name = "Micrel KSZ8001 or KS8721", 1245 .phy_id_mask = 0x00fffffc, 1246 /* PHY_BASIC_FEATURES */ 1247 .driver_data = &ksz8041_type, 1248 .probe = kszphy_probe, 1249 .config_init = kszphy_config_init, 1250 .ack_interrupt = kszphy_ack_interrupt, 1251 .config_intr = kszphy_config_intr, 1252 .get_sset_count = kszphy_get_sset_count, 1253 .get_strings = kszphy_get_strings, 1254 .get_stats = kszphy_get_stats, 1255 .suspend = genphy_suspend, 1256 .resume = genphy_resume, 1257 }, { 1258 .phy_id = PHY_ID_KSZ8081, 1259 .name = "Micrel KSZ8081 or KSZ8091", 1260 .phy_id_mask = MICREL_PHY_ID_MASK, 1261 /* PHY_BASIC_FEATURES */ 1262 .driver_data = &ksz8081_type, 1263 .probe = kszphy_probe, 1264 .config_init = ksz8081_config_init, 1265 .ack_interrupt = kszphy_ack_interrupt, 1266 .config_intr = kszphy_config_intr, 1267 .get_sset_count = kszphy_get_sset_count, 1268 .get_strings = kszphy_get_strings, 1269 .get_stats = kszphy_get_stats, 1270 .suspend = kszphy_suspend, 1271 .resume = kszphy_resume, 1272 }, { 1273 .phy_id = PHY_ID_KSZ8061, 1274 .name = "Micrel KSZ8061", 1275 .phy_id_mask = MICREL_PHY_ID_MASK, 1276 /* PHY_BASIC_FEATURES */ 1277 .config_init = ksz8061_config_init, 1278 .ack_interrupt = kszphy_ack_interrupt, 1279 .config_intr = kszphy_config_intr, 1280 .suspend = genphy_suspend, 1281 .resume = genphy_resume, 1282 }, { 1283 .phy_id = PHY_ID_KSZ9021, 1284 .phy_id_mask = 0x000ffffe, 1285 .name = "Micrel KSZ9021 Gigabit PHY", 1286 /* PHY_GBIT_FEATURES */ 1287 .driver_data = &ksz9021_type, 1288 .probe = kszphy_probe, 1289 .get_features = ksz9031_get_features, 1290 .config_init = ksz9021_config_init, 1291 .ack_interrupt = kszphy_ack_interrupt, 1292 .config_intr = kszphy_config_intr, 1293 .get_sset_count = kszphy_get_sset_count, 1294 .get_strings = kszphy_get_strings, 1295 .get_stats = kszphy_get_stats, 1296 .suspend = genphy_suspend, 1297 .resume = genphy_resume, 1298 .read_mmd = genphy_read_mmd_unsupported, 1299 .write_mmd = genphy_write_mmd_unsupported, 1300 }, { 1301 .phy_id = PHY_ID_KSZ9031, 1302 .phy_id_mask = MICREL_PHY_ID_MASK, 1303 .name = "Micrel KSZ9031 Gigabit PHY", 1304 .driver_data = &ksz9021_type, 1305 .probe = kszphy_probe, 1306 .get_features = ksz9031_get_features, 1307 .config_init = ksz9031_config_init, 1308 .soft_reset = genphy_soft_reset, 1309 .read_status = ksz9031_read_status, 1310 .ack_interrupt = kszphy_ack_interrupt, 1311 .config_intr = kszphy_config_intr, 1312 .get_sset_count = kszphy_get_sset_count, 1313 .get_strings = kszphy_get_strings, 1314 .get_stats = kszphy_get_stats, 1315 .suspend = genphy_suspend, 1316 .resume = kszphy_resume, 1317 }, { 1318 .phy_id = PHY_ID_KSZ9131, 1319 .phy_id_mask = MICREL_PHY_ID_MASK, 1320 .name = "Microchip KSZ9131 Gigabit PHY", 1321 /* PHY_GBIT_FEATURES */ 1322 .driver_data = &ksz9021_type, 1323 .probe = kszphy_probe, 1324 .config_init = ksz9131_config_init, 1325 .read_status = genphy_read_status, 1326 .ack_interrupt = kszphy_ack_interrupt, 1327 .config_intr = kszphy_config_intr, 1328 .get_sset_count = kszphy_get_sset_count, 1329 .get_strings = kszphy_get_strings, 1330 .get_stats = kszphy_get_stats, 1331 .suspend = genphy_suspend, 1332 .resume = kszphy_resume, 1333 }, { 1334 .phy_id = PHY_ID_KSZ8873MLL, 1335 .phy_id_mask = MICREL_PHY_ID_MASK, 1336 .name = "Micrel KSZ8873MLL Switch", 1337 /* PHY_BASIC_FEATURES */ 1338 .config_init = kszphy_config_init, 1339 .config_aneg = ksz8873mll_config_aneg, 1340 .read_status = ksz8873mll_read_status, 1341 .suspend = genphy_suspend, 1342 .resume = genphy_resume, 1343 }, { 1344 .phy_id = PHY_ID_KSZ886X, 1345 .phy_id_mask = MICREL_PHY_ID_MASK, 1346 .name = "Micrel KSZ886X Switch", 1347 /* PHY_BASIC_FEATURES */ 1348 .config_init = kszphy_config_init, 1349 .suspend = genphy_suspend, 1350 .resume = genphy_resume, 1351 }, { 1352 .name = "Micrel KSZ87XX Switch", 1353 /* PHY_BASIC_FEATURES */ 1354 .config_init = kszphy_config_init, 1355 .config_aneg = ksz8873mll_config_aneg, 1356 .read_status = ksz8873mll_read_status, 1357 .match_phy_device = ksz8795_match_phy_device, 1358 .suspend = genphy_suspend, 1359 .resume = genphy_resume, 1360 }, { 1361 .phy_id = PHY_ID_KSZ9477, 1362 .phy_id_mask = MICREL_PHY_ID_MASK, 1363 .name = "Microchip KSZ9477", 1364 /* PHY_GBIT_FEATURES */ 1365 .config_init = kszphy_config_init, 1366 .suspend = genphy_suspend, 1367 .resume = genphy_resume, 1368 } }; 1369 1370 module_phy_driver(ksphy_driver); 1371 1372 MODULE_DESCRIPTION("Micrel PHY driver"); 1373 MODULE_AUTHOR("David J. Choi"); 1374 MODULE_LICENSE("GPL"); 1375 1376 static struct mdio_device_id __maybe_unused micrel_tbl[] = { 1377 { PHY_ID_KSZ9021, 0x000ffffe }, 1378 { PHY_ID_KSZ9031, MICREL_PHY_ID_MASK }, 1379 { PHY_ID_KSZ9131, MICREL_PHY_ID_MASK }, 1380 { PHY_ID_KSZ8001, 0x00fffffc }, 1381 { PHY_ID_KS8737, MICREL_PHY_ID_MASK }, 1382 { PHY_ID_KSZ8021, 0x00ffffff }, 1383 { PHY_ID_KSZ8031, 0x00ffffff }, 1384 { PHY_ID_KSZ8041, MICREL_PHY_ID_MASK }, 1385 { PHY_ID_KSZ8051, MICREL_PHY_ID_MASK }, 1386 { PHY_ID_KSZ8061, MICREL_PHY_ID_MASK }, 1387 { PHY_ID_KSZ8081, MICREL_PHY_ID_MASK }, 1388 { PHY_ID_KSZ8873MLL, MICREL_PHY_ID_MASK }, 1389 { PHY_ID_KSZ886X, MICREL_PHY_ID_MASK }, 1390 { } 1391 }; 1392 1393 MODULE_DEVICE_TABLE(mdio, micrel_tbl); 1394