Pileus Git - ~andy/linux/blob - drivers/net/phy/marvell.c

   1 /*
   2  * drivers/net/phy/marvell.c
   3  *
   4  * Driver for Marvell PHYs
   5  *
   6  * Author: Andy Fleming
   7  *
   8  * Copyright (c) 2004 Freescale Semiconductor, Inc.
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  *
  15  */
  16 #include <linux/kernel.h>
  17 #include <linux/string.h>
  18 #include <linux/errno.h>
  19 #include <linux/unistd.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/init.h>
  22 #include <linux/delay.h>
  23 #include <linux/netdevice.h>
  24 #include <linux/etherdevice.h>
  25 #include <linux/skbuff.h>
  26 #include <linux/spinlock.h>
  27 #include <linux/mm.h>
  28 #include <linux/module.h>
  29 #include <linux/mii.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/phy.h>
  32 #include <linux/marvell_phy.h>
  33 #include <linux/of.h>
  34
  35 #include <asm/io.h>
  36 #include <asm/irq.h>
  37 #include <asm/uaccess.h>
  38
  39 #define MII_MARVELL_PHY_PAGE            22
  40
  41 #define MII_M1011_IEVENT                0x13
  42 #define MII_M1011_IEVENT_CLEAR          0x0000
  43
  44 #define MII_M1011_IMASK                 0x12
  45 #define MII_M1011_IMASK_INIT            0x6400
  46 #define MII_M1011_IMASK_CLEAR           0x0000
  47
  48 #define MII_M1011_PHY_SCR               0x10
  49 #define MII_M1011_PHY_SCR_AUTO_CROSS    0x0060
  50
  51 #define MII_M1145_PHY_EXT_CR            0x14
  52 #define MII_M1145_RGMII_RX_DELAY        0x0080
  53 #define MII_M1145_RGMII_TX_DELAY        0x0002
  54
  55 #define MII_M1111_PHY_LED_CONTROL       0x18
  56 #define MII_M1111_PHY_LED_DIRECT        0x4100
  57 #define MII_M1111_PHY_LED_COMBINE       0x411c
  58 #define MII_M1111_PHY_EXT_CR            0x14
  59 #define MII_M1111_RX_DELAY              0x80
  60 #define MII_M1111_TX_DELAY              0x2
  61 #define MII_M1111_PHY_EXT_SR            0x1b
  62
  63 #define MII_M1111_HWCFG_MODE_MASK               0xf
  64 #define MII_M1111_HWCFG_MODE_COPPER_RGMII       0xb
  65 #define MII_M1111_HWCFG_MODE_FIBER_RGMII        0x3
  66 #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK       0x4
  67 #define MII_M1111_HWCFG_MODE_COPPER_RTBI        0x9
  68 #define MII_M1111_HWCFG_FIBER_COPPER_AUTO       0x8000
  69 #define MII_M1111_HWCFG_FIBER_COPPER_RES        0x2000
  70
  71 #define MII_M1111_COPPER                0
  72 #define MII_M1111_FIBER                 1
  73
  74 #define MII_88E1121_PHY_MSCR_PAGE       2
  75 #define MII_88E1121_PHY_MSCR_REG        21
  76 #define MII_88E1121_PHY_MSCR_RX_DELAY   BIT(5)
  77 #define MII_88E1121_PHY_MSCR_TX_DELAY   BIT(4)
  78 #define MII_88E1121_PHY_MSCR_DELAY_MASK (~(0x3 << 4))
  79
  80 #define MII_88E1318S_PHY_MSCR1_REG      16
  81 #define MII_88E1318S_PHY_MSCR1_PAD_ODD  BIT(6)
  82
  83 #define MII_88E1121_PHY_LED_CTRL        16
  84 #define MII_88E1121_PHY_LED_PAGE        3
  85 #define MII_88E1121_PHY_LED_DEF         0x0030
  86
  87 #define MII_M1011_PHY_STATUS            0x11
  88 #define MII_M1011_PHY_STATUS_1000       0x8000
  89 #define MII_M1011_PHY_STATUS_100        0x4000
  90 #define MII_M1011_PHY_STATUS_SPD_MASK   0xc000
  91 #define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
  92 #define MII_M1011_PHY_STATUS_RESOLVED   0x0800
  93 #define MII_M1011_PHY_STATUS_LINK       0x0400
  94
  95
  96 MODULE_DESCRIPTION("Marvell PHY driver");
  97 MODULE_AUTHOR("Andy Fleming");
  98 MODULE_LICENSE("GPL");
  99
 100 static int marvell_ack_interrupt(struct phy_device *phydev)
 101 {
 102         int err;
 103
 104         /* Clear the interrupts by reading the reg */
 105         err = phy_read(phydev, MII_M1011_IEVENT);
 106
 107         if (err < 0)
 108                 return err;
 109
 110         return 0;
 111 }
 112
 113 static int marvell_config_intr(struct phy_device *phydev)
 114 {
 115         int err;
 116
 117         if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 118                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
 119         else
 120                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
 121
 122         return err;
 123 }
 124
 125 static int marvell_config_aneg(struct phy_device *phydev)
 126 {
 127         int err;
 128
 129         /* The Marvell PHY has an errata which requires
 130          * that certain registers get written in order
 131          * to restart autonegotiation */
 132         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 133
 134         if (err < 0)
 135                 return err;
 136
 137         err = phy_write(phydev, 0x1d, 0x1f);
 138         if (err < 0)
 139                 return err;
 140
 141         err = phy_write(phydev, 0x1e, 0x200c);
 142         if (err < 0)
 143                 return err;
 144
 145         err = phy_write(phydev, 0x1d, 0x5);
 146         if (err < 0)
 147                 return err;
 148
 149         err = phy_write(phydev, 0x1e, 0);
 150         if (err < 0)
 151                 return err;
 152
 153         err = phy_write(phydev, 0x1e, 0x100);
 154         if (err < 0)
 155                 return err;
 156
 157         err = phy_write(phydev, MII_M1011_PHY_SCR,
 158                         MII_M1011_PHY_SCR_AUTO_CROSS);
 159         if (err < 0)
 160                 return err;
 161
 162         err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
 163                         MII_M1111_PHY_LED_DIRECT);
 164         if (err < 0)
 165                 return err;
 166
 167         err = genphy_config_aneg(phydev);
 168         if (err < 0)
 169                 return err;
 170
 171         if (phydev->autoneg != AUTONEG_ENABLE) {
 172                 int bmcr;
 173
 174                 /*
 175                  * A write to speed/duplex bits (that is performed by
 176                  * genphy_config_aneg() call above) must be followed by
 177                  * a software reset. Otherwise, the write has no effect.
 178                  */
 179                 bmcr = phy_read(phydev, MII_BMCR);
 180                 if (bmcr < 0)
 181                         return bmcr;
 182
 183                 err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
 184                 if (err < 0)
 185                         return err;
 186         }
 187
 188         return 0;
 189 }
 190
 191 #ifdef CONFIG_OF_MDIO
 192 /*
 193  * Set and/or override some configuration registers based on the
 194  * marvell,reg-init property stored in the of_node for the phydev.
 195  *
 196  * marvell,reg-init = <reg-page reg mask value>,...;
 197  *
 198  * There may be one or more sets of <reg-page reg mask value>:
 199  *
 200  * reg-page: which register bank to use.
 201  * reg: the register.
 202  * mask: if non-zero, ANDed with existing register value.
 203  * value: ORed with the masked value and written to the regiser.
 204  *
 205  */
 206 static int marvell_of_reg_init(struct phy_device *phydev)
 207 {
 208         const __be32 *paddr;
 209         int len, i, saved_page, current_page, page_changed, ret;
 210
 211         if (!phydev->dev.of_node)
 212                 return 0;
 213
 214         paddr = of_get_property(phydev->dev.of_node, "marvell,reg-init", &len);
 215         if (!paddr || len < (4 * sizeof(*paddr)))
 216                 return 0;
 217
 218         saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 219         if (saved_page < 0)
 220                 return saved_page;
 221         page_changed = 0;
 222         current_page = saved_page;
 223
 224         ret = 0;
 225         len /= sizeof(*paddr);
 226         for (i = 0; i < len - 3; i += 4) {
 227                 u16 reg_page = be32_to_cpup(paddr + i);
 228                 u16 reg = be32_to_cpup(paddr + i + 1);
 229                 u16 mask = be32_to_cpup(paddr + i + 2);
 230                 u16 val_bits = be32_to_cpup(paddr + i + 3);
 231                 int val;
 232
 233                 if (reg_page != current_page) {
 234                         current_page = reg_page;
 235                         page_changed = 1;
 236                         ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
 237                         if (ret < 0)
 238                                 goto err;
 239                 }
 240
 241                 val = 0;
 242                 if (mask) {
 243                         val = phy_read(phydev, reg);
 244                         if (val < 0) {
 245                                 ret = val;
 246                                 goto err;
 247                         }
 248                         val &= mask;
 249                 }
 250                 val |= val_bits;
 251
 252                 ret = phy_write(phydev, reg, val);
 253                 if (ret < 0)
 254                         goto err;
 255
 256         }
 257 err:
 258         if (page_changed) {
 259                 i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
 260                 if (ret == 0)
 261                         ret = i;
 262         }
 263         return ret;
 264 }
 265 #else
 266 static int marvell_of_reg_init(struct phy_device *phydev)
 267 {
 268         return 0;
 269 }
 270 #endif /* CONFIG_OF_MDIO */
 271
 272 static int m88e1121_config_aneg(struct phy_device *phydev)
 273 {
 274         int err, oldpage, mscr;
 275
 276         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 277
 278         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 279                         MII_88E1121_PHY_MSCR_PAGE);
 280         if (err < 0)
 281                 return err;
 282
 283         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
 284             (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
 285             (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
 286             (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 287
 288                 mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
 289                         MII_88E1121_PHY_MSCR_DELAY_MASK;
 290
 291                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
 292                         mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
 293                                  MII_88E1121_PHY_MSCR_TX_DELAY);
 294                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
 295                         mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
 296                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
 297                         mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
 298
 299                 err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
 300                 if (err < 0)
 301                         return err;
 302         }
 303
 304         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 305
 306         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 307         if (err < 0)
 308                 return err;
 309
 310         err = phy_write(phydev, MII_M1011_PHY_SCR,
 311                         MII_M1011_PHY_SCR_AUTO_CROSS);
 312         if (err < 0)
 313                 return err;
 314
 315         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 316
 317         phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_88E1121_PHY_LED_PAGE);
 318         phy_write(phydev, MII_88E1121_PHY_LED_CTRL, MII_88E1121_PHY_LED_DEF);
 319         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 320
 321         err = genphy_config_aneg(phydev);
 322
 323         return err;
 324 }
 325
 326 static int m88e1318_config_aneg(struct phy_device *phydev)
 327 {
 328         int err, oldpage, mscr;
 329
 330         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 331
 332         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 333                         MII_88E1121_PHY_MSCR_PAGE);
 334         if (err < 0)
 335                 return err;
 336
 337         mscr = phy_read(phydev, MII_88E1318S_PHY_MSCR1_REG);
 338         mscr |= MII_88E1318S_PHY_MSCR1_PAD_ODD;
 339
 340         err = phy_write(phydev, MII_88E1318S_PHY_MSCR1_REG, mscr);
 341         if (err < 0)
 342                 return err;
 343
 344         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 345         if (err < 0)
 346                 return err;
 347
 348         return m88e1121_config_aneg(phydev);
 349 }
 350
 351 static int m88e1111_config_init(struct phy_device *phydev)
 352 {
 353         int err;
 354         int temp;
 355
 356         /* Enable Fiber/Copper auto selection */
 357         temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 358         temp &= ~MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 359         phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 360
 361         temp = phy_read(phydev, MII_BMCR);
 362         temp |= BMCR_RESET;
 363         phy_write(phydev, MII_BMCR, temp);
 364
 365         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
 366             (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
 367             (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
 368             (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 369
 370                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 371                 if (temp < 0)
 372                         return temp;
 373
 374                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 375                         temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 376                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 377                         temp &= ~MII_M1111_TX_DELAY;
 378                         temp |= MII_M1111_RX_DELAY;
 379                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 380                         temp &= ~MII_M1111_RX_DELAY;
 381                         temp |= MII_M1111_TX_DELAY;
 382                 }
 383
 384                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 385                 if (err < 0)
 386                         return err;
 387
 388                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 389                 if (temp < 0)
 390                         return temp;
 391
 392                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 393
 394                 if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
 395                         temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
 396                 else
 397                         temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
 398
 399                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 400                 if (err < 0)
 401                         return err;
 402         }
 403
 404         if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
 405                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 406                 if (temp < 0)
 407                         return temp;
 408
 409                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 410                 temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
 411                 temp |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 412
 413                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 414                 if (err < 0)
 415                         return err;
 416         }
 417
 418         if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
 419                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 420                 if (temp < 0)
 421                         return temp;
 422                 temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 423                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 424                 if (err < 0)
 425                         return err;
 426
 427                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 428                 if (temp < 0)
 429                         return temp;
 430                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 431                 temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 432                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 433                 if (err < 0)
 434                         return err;
 435
 436                 /* soft reset */
 437                 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 438                 if (err < 0)
 439                         return err;
 440                 do
 441                         temp = phy_read(phydev, MII_BMCR);
 442                 while (temp & BMCR_RESET);
 443
 444                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 445                 if (temp < 0)
 446                         return temp;
 447                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 448                 temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 449                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 450                 if (err < 0)
 451                         return err;
 452         }
 453
 454         err = marvell_of_reg_init(phydev);
 455         if (err < 0)
 456                 return err;
 457
 458         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 459 }
 460
 461 static int m88e1118_config_aneg(struct phy_device *phydev)
 462 {
 463         int err;
 464
 465         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 466         if (err < 0)
 467                 return err;
 468
 469         err = phy_write(phydev, MII_M1011_PHY_SCR,
 470                         MII_M1011_PHY_SCR_AUTO_CROSS);
 471         if (err < 0)
 472                 return err;
 473
 474         err = genphy_config_aneg(phydev);
 475         return 0;
 476 }
 477
 478 static int m88e1118_config_init(struct phy_device *phydev)
 479 {
 480         int err;
 481
 482         /* Change address */
 483         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 484         if (err < 0)
 485                 return err;
 486
 487         /* Enable 1000 Mbit */
 488         err = phy_write(phydev, 0x15, 0x1070);
 489         if (err < 0)
 490                 return err;
 491
 492         /* Change address */
 493         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0003);
 494         if (err < 0)
 495                 return err;
 496
 497         /* Adjust LED Control */
 498         if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
 499                 err = phy_write(phydev, 0x10, 0x1100);
 500         else
 501                 err = phy_write(phydev, 0x10, 0x021e);
 502         if (err < 0)
 503                 return err;
 504
 505         err = marvell_of_reg_init(phydev);
 506         if (err < 0)
 507                 return err;
 508
 509         /* Reset address */
 510         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 511         if (err < 0)
 512                 return err;
 513
 514         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 515 }
 516
 517 static int m88e1149_config_init(struct phy_device *phydev)
 518 {
 519         int err;
 520
 521         /* Change address */
 522         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 523         if (err < 0)
 524                 return err;
 525
 526         /* Enable 1000 Mbit */
 527         err = phy_write(phydev, 0x15, 0x1048);
 528         if (err < 0)
 529                 return err;
 530
 531         err = marvell_of_reg_init(phydev);
 532         if (err < 0)
 533                 return err;
 534
 535         /* Reset address */
 536         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 537         if (err < 0)
 538                 return err;
 539
 540         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 541 }
 542
 543 static int m88e1145_config_init(struct phy_device *phydev)
 544 {
 545         int err;
 546
 547         /* Take care of errata E0 & E1 */
 548         err = phy_write(phydev, 0x1d, 0x001b);
 549         if (err < 0)
 550                 return err;
 551
 552         err = phy_write(phydev, 0x1e, 0x418f);
 553         if (err < 0)
 554                 return err;
 555
 556         err = phy_write(phydev, 0x1d, 0x0016);
 557         if (err < 0)
 558                 return err;
 559
 560         err = phy_write(phydev, 0x1e, 0xa2da);
 561         if (err < 0)
 562                 return err;
 563
 564         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 565                 int temp = phy_read(phydev, MII_M1145_PHY_EXT_CR);
 566                 if (temp < 0)
 567                         return temp;
 568
 569                 temp |= (MII_M1145_RGMII_RX_DELAY | MII_M1145_RGMII_TX_DELAY);
 570
 571                 err = phy_write(phydev, MII_M1145_PHY_EXT_CR, temp);
 572                 if (err < 0)
 573                         return err;
 574
 575                 if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
 576                         err = phy_write(phydev, 0x1d, 0x0012);
 577                         if (err < 0)
 578                                 return err;
 579
 580                         temp = phy_read(phydev, 0x1e);
 581                         if (temp < 0)
 582                                 return temp;
 583
 584                         temp &= 0xf03f;
 585                         temp |= 2 << 9; /* 36 ohm */
 586                         temp |= 2 << 6; /* 39 ohm */
 587
 588                         err = phy_write(phydev, 0x1e, temp);
 589                         if (err < 0)
 590                                 return err;
 591
 592                         err = phy_write(phydev, 0x1d, 0x3);
 593                         if (err < 0)
 594                                 return err;
 595
 596                         err = phy_write(phydev, 0x1e, 0x8000);
 597                         if (err < 0)
 598                                 return err;
 599                 }
 600         }
 601
 602         err = marvell_of_reg_init(phydev);
 603         if (err < 0)
 604                 return err;
 605
 606         return 0;
 607 }
 608
 609 /* marvell_read_status
 610  *
 611  * Generic status code does not detect Fiber correctly!
 612  * Description:
 613  *   Check the link, then figure out the current state
 614  *   by comparing what we advertise with what the link partner
 615  *   advertises.  Start by checking the gigabit possibilities,
 616  *   then move on to 10/100.
 617  */
 618 static int marvell_read_status(struct phy_device *phydev)
 619 {
 620         int adv;
 621         int err;
 622         int lpa;
 623         int status = 0;
 624
 625         /* Update the link, but return if there
 626          * was an error */
 627         err = genphy_update_link(phydev);
 628         if (err)
 629                 return err;
 630
 631         if (AUTONEG_ENABLE == phydev->autoneg) {
 632                 status = phy_read(phydev, MII_M1011_PHY_STATUS);
 633                 if (status < 0)
 634                         return status;
 635
 636                 lpa = phy_read(phydev, MII_LPA);
 637                 if (lpa < 0)
 638                         return lpa;
 639
 640                 adv = phy_read(phydev, MII_ADVERTISE);
 641                 if (adv < 0)
 642                         return adv;
 643
 644                 lpa &= adv;
 645
 646                 if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
 647                         phydev->duplex = DUPLEX_FULL;
 648                 else
 649                         phydev->duplex = DUPLEX_HALF;
 650
 651                 status = status & MII_M1011_PHY_STATUS_SPD_MASK;
 652                 phydev->pause = phydev->asym_pause = 0;
 653
 654                 switch (status) {
 655                 case MII_M1011_PHY_STATUS_1000:
 656                         phydev->speed = SPEED_1000;
 657                         break;
 658
 659                 case MII_M1011_PHY_STATUS_100:
 660                         phydev->speed = SPEED_100;
 661                         break;
 662
 663                 default:
 664                         phydev->speed = SPEED_10;
 665                         break;
 666                 }
 667
 668                 if (phydev->duplex == DUPLEX_FULL) {
 669                         phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
 670                         phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
 671                 }
 672         } else {
 673                 int bmcr = phy_read(phydev, MII_BMCR);
 674
 675                 if (bmcr < 0)
 676                         return bmcr;
 677
 678                 if (bmcr & BMCR_FULLDPLX)
 679                         phydev->duplex = DUPLEX_FULL;
 680                 else
 681                         phydev->duplex = DUPLEX_HALF;
 682
 683                 if (bmcr & BMCR_SPEED1000)
 684                         phydev->speed = SPEED_1000;
 685                 else if (bmcr & BMCR_SPEED100)
 686                         phydev->speed = SPEED_100;
 687                 else
 688                         phydev->speed = SPEED_10;
 689
 690                 phydev->pause = phydev->asym_pause = 0;
 691         }
 692
 693         return 0;
 694 }
 695
 696 static int m88e1121_did_interrupt(struct phy_device *phydev)
 697 {
 698         int imask;
 699
 700         imask = phy_read(phydev, MII_M1011_IEVENT);
 701
 702         if (imask & MII_M1011_IMASK_INIT)
 703                 return 1;
 704
 705         return 0;
 706 }
 707
 708 static struct phy_driver marvell_drivers[] = {
 709         {
 710                 .phy_id = MARVELL_PHY_ID_88E1101,
 711                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 712                 .name = "Marvell 88E1101",
 713                 .features = PHY_GBIT_FEATURES,
 714                 .flags = PHY_HAS_INTERRUPT,
 715                 .config_aneg = &marvell_config_aneg,
 716                 .read_status = &genphy_read_status,
 717                 .ack_interrupt = &marvell_ack_interrupt,
 718                 .config_intr = &marvell_config_intr,
 719                 .driver = { .owner = THIS_MODULE },
 720         },
 721         {
 722                 .phy_id = MARVELL_PHY_ID_88E1112,
 723                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 724                 .name = "Marvell 88E1112",
 725                 .features = PHY_GBIT_FEATURES,
 726                 .flags = PHY_HAS_INTERRUPT,
 727                 .config_init = &m88e1111_config_init,
 728                 .config_aneg = &marvell_config_aneg,
 729                 .read_status = &genphy_read_status,
 730                 .ack_interrupt = &marvell_ack_interrupt,
 731                 .config_intr = &marvell_config_intr,
 732                 .driver = { .owner = THIS_MODULE },
 733         },
 734         {
 735                 .phy_id = MARVELL_PHY_ID_88E1111,
 736                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 737                 .name = "Marvell 88E1111",
 738                 .features = PHY_GBIT_FEATURES,
 739                 .flags = PHY_HAS_INTERRUPT,
 740                 .config_init = &m88e1111_config_init,
 741                 .config_aneg = &marvell_config_aneg,
 742                 .read_status = &marvell_read_status,
 743                 .ack_interrupt = &marvell_ack_interrupt,
 744                 .config_intr = &marvell_config_intr,
 745                 .driver = { .owner = THIS_MODULE },
 746         },
 747         {
 748                 .phy_id = MARVELL_PHY_ID_88E1118,
 749                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 750                 .name = "Marvell 88E1118",
 751                 .features = PHY_GBIT_FEATURES,
 752                 .flags = PHY_HAS_INTERRUPT,
 753                 .config_init = &m88e1118_config_init,
 754                 .config_aneg = &m88e1118_config_aneg,
 755                 .read_status = &genphy_read_status,
 756                 .ack_interrupt = &marvell_ack_interrupt,
 757                 .config_intr = &marvell_config_intr,
 758                 .driver = {.owner = THIS_MODULE,},
 759         },
 760         {
 761                 .phy_id = MARVELL_PHY_ID_88E1121R,
 762                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 763                 .name = "Marvell 88E1121R",
 764                 .features = PHY_GBIT_FEATURES,
 765                 .flags = PHY_HAS_INTERRUPT,
 766                 .config_aneg = &m88e1121_config_aneg,
 767                 .read_status = &marvell_read_status,
 768                 .ack_interrupt = &marvell_ack_interrupt,
 769                 .config_intr = &marvell_config_intr,
 770                 .did_interrupt = &m88e1121_did_interrupt,
 771                 .driver = { .owner = THIS_MODULE },
 772         },
 773         {
 774                 .phy_id = MARVELL_PHY_ID_88E1318S,
 775                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 776                 .name = "Marvell 88E1318S",
 777                 .features = PHY_GBIT_FEATURES,
 778                 .flags = PHY_HAS_INTERRUPT,
 779                 .config_aneg = &m88e1318_config_aneg,
 780                 .read_status = &marvell_read_status,
 781                 .ack_interrupt = &marvell_ack_interrupt,
 782                 .config_intr = &marvell_config_intr,
 783                 .did_interrupt = &m88e1121_did_interrupt,
 784                 .driver = { .owner = THIS_MODULE },
 785         },
 786         {
 787                 .phy_id = MARVELL_PHY_ID_88E1145,
 788                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 789                 .name = "Marvell 88E1145",
 790                 .features = PHY_GBIT_FEATURES,
 791                 .flags = PHY_HAS_INTERRUPT,
 792                 .config_init = &m88e1145_config_init,
 793                 .config_aneg = &marvell_config_aneg,
 794                 .read_status = &genphy_read_status,
 795                 .ack_interrupt = &marvell_ack_interrupt,
 796                 .config_intr = &marvell_config_intr,
 797                 .driver = { .owner = THIS_MODULE },
 798         },
 799         {
 800                 .phy_id = MARVELL_PHY_ID_88E1149R,
 801                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 802                 .name = "Marvell 88E1149R",
 803                 .features = PHY_GBIT_FEATURES,
 804                 .flags = PHY_HAS_INTERRUPT,
 805                 .config_init = &m88e1149_config_init,
 806                 .config_aneg = &m88e1118_config_aneg,
 807                 .read_status = &genphy_read_status,
 808                 .ack_interrupt = &marvell_ack_interrupt,
 809                 .config_intr = &marvell_config_intr,
 810                 .driver = { .owner = THIS_MODULE },
 811         },
 812         {
 813                 .phy_id = MARVELL_PHY_ID_88E1240,
 814                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 815                 .name = "Marvell 88E1240",
 816                 .features = PHY_GBIT_FEATURES,
 817                 .flags = PHY_HAS_INTERRUPT,
 818                 .config_init = &m88e1111_config_init,
 819                 .config_aneg = &marvell_config_aneg,
 820                 .read_status = &genphy_read_status,
 821                 .ack_interrupt = &marvell_ack_interrupt,
 822                 .config_intr = &marvell_config_intr,
 823                 .driver = { .owner = THIS_MODULE },
 824         },
 825 };
 826
 827 static int __init marvell_init(void)
 828 {
 829         return phy_drivers_register(marvell_drivers,
 830                  ARRAY_SIZE(marvell_drivers));
 831 }
 832
 833 static void __exit marvell_exit(void)
 834 {
 835         phy_drivers_unregister(marvell_drivers,
 836                  ARRAY_SIZE(marvell_drivers));
 837 }
 838
 839 module_init(marvell_init);
 840 module_exit(marvell_exit);
 841
 842 static struct mdio_device_id __maybe_unused marvell_tbl[] = {
 843         { 0x01410c60, 0xfffffff0 },
 844         { 0x01410c90, 0xfffffff0 },
 845         { 0x01410cc0, 0xfffffff0 },
 846         { 0x01410e10, 0xfffffff0 },
 847         { 0x01410cb0, 0xfffffff0 },
 848         { 0x01410cd0, 0xfffffff0 },
 849         { 0x01410e50, 0xfffffff0 },
 850         { 0x01410e30, 0xfffffff0 },
 851         { 0x01410e90, 0xfffffff0 },
 852         { }
 853 };
 854
 855 MODULE_DEVICE_TABLE(mdio, marvell_tbl);