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  * Copyright (c) 2013 Michael Stapelberg <[email protected]>
  11  *
  12  * This program is free software; you can redistribute  it and/or modify it
  13  * under  the terms of  the GNU General  Public License as published by the
  14  * Free Software Foundation;  either version 2 of the  License, or (at your
  15  * option) any later version.
  16  *
  17  */
  18 #include <linux/kernel.h>
  19 #include <linux/string.h>
  20 #include <linux/errno.h>
  21 #include <linux/unistd.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/init.h>
  24 #include <linux/delay.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/etherdevice.h>
  27 #include <linux/skbuff.h>
  28 #include <linux/spinlock.h>
  29 #include <linux/mm.h>
  30 #include <linux/module.h>
  31 #include <linux/mii.h>
  32 #include <linux/ethtool.h>
  33 #include <linux/phy.h>
  34 #include <linux/marvell_phy.h>
  35 #include <linux/of.h>
  36
  37 #include <linux/io.h>
  38 #include <asm/irq.h>
  39 #include <linux/uaccess.h>
  40
  41 #define MII_MARVELL_PHY_PAGE            22
  42
  43 #define MII_M1011_IEVENT                0x13
  44 #define MII_M1011_IEVENT_CLEAR          0x0000
  45
  46 #define MII_M1011_IMASK                 0x12
  47 #define MII_M1011_IMASK_INIT            0x6400
  48 #define MII_M1011_IMASK_CLEAR           0x0000
  49
  50 #define MII_M1011_PHY_SCR               0x10
  51 #define MII_M1011_PHY_SCR_AUTO_CROSS    0x0060
  52
  53 #define MII_M1145_PHY_EXT_CR            0x14
  54 #define MII_M1145_RGMII_RX_DELAY        0x0080
  55 #define MII_M1145_RGMII_TX_DELAY        0x0002
  56
  57 #define MII_M1111_PHY_LED_CONTROL       0x18
  58 #define MII_M1111_PHY_LED_DIRECT        0x4100
  59 #define MII_M1111_PHY_LED_COMBINE       0x411c
  60 #define MII_M1111_PHY_EXT_CR            0x14
  61 #define MII_M1111_RX_DELAY              0x80
  62 #define MII_M1111_TX_DELAY              0x2
  63 #define MII_M1111_PHY_EXT_SR            0x1b
  64
  65 #define MII_M1111_HWCFG_MODE_MASK               0xf
  66 #define MII_M1111_HWCFG_MODE_COPPER_RGMII       0xb
  67 #define MII_M1111_HWCFG_MODE_FIBER_RGMII        0x3
  68 #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK       0x4
  69 #define MII_M1111_HWCFG_MODE_COPPER_RTBI        0x9
  70 #define MII_M1111_HWCFG_FIBER_COPPER_AUTO       0x8000
  71 #define MII_M1111_HWCFG_FIBER_COPPER_RES        0x2000
  72
  73 #define MII_M1111_COPPER                0
  74 #define MII_M1111_FIBER                 1
  75
  76 #define MII_88E1121_PHY_MSCR_PAGE       2
  77 #define MII_88E1121_PHY_MSCR_REG        21
  78 #define MII_88E1121_PHY_MSCR_RX_DELAY   BIT(5)
  79 #define MII_88E1121_PHY_MSCR_TX_DELAY   BIT(4)
  80 #define MII_88E1121_PHY_MSCR_DELAY_MASK (~(0x3 << 4))
  81
  82 #define MII_88E1318S_PHY_MSCR1_REG      16
  83 #define MII_88E1318S_PHY_MSCR1_PAD_ODD  BIT(6)
  84
  85 /* Copper Specific Interrupt Enable Register */
  86 #define MII_88E1318S_PHY_CSIER                              0x12
  87 /* WOL Event Interrupt Enable */
  88 #define MII_88E1318S_PHY_CSIER_WOL_EIE                      BIT(7)
  89
  90 /* LED Timer Control Register */
  91 #define MII_88E1318S_PHY_LED_PAGE                           0x03
  92 #define MII_88E1318S_PHY_LED_TCR                            0x12
  93 #define MII_88E1318S_PHY_LED_TCR_FORCE_INT                  BIT(15)
  94 #define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE                BIT(7)
  95 #define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW             BIT(11)
  96
  97 /* Magic Packet MAC address registers */
  98 #define MII_88E1318S_PHY_MAGIC_PACKET_WORD2                 0x17
  99 #define MII_88E1318S_PHY_MAGIC_PACKET_WORD1                 0x18
 100 #define MII_88E1318S_PHY_MAGIC_PACKET_WORD0                 0x19
 101
 102 #define MII_88E1318S_PHY_WOL_PAGE                           0x11
 103 #define MII_88E1318S_PHY_WOL_CTRL                           0x10
 104 #define MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS          BIT(12)
 105 #define MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE BIT(14)
 106
 107 #define MII_88E1121_PHY_LED_CTRL        16
 108 #define MII_88E1121_PHY_LED_PAGE        3
 109 #define MII_88E1121_PHY_LED_DEF         0x0030
 110
 111 #define MII_M1011_PHY_STATUS            0x11
 112 #define MII_M1011_PHY_STATUS_1000       0x8000
 113 #define MII_M1011_PHY_STATUS_100        0x4000
 114 #define MII_M1011_PHY_STATUS_SPD_MASK   0xc000
 115 #define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
 116 #define MII_M1011_PHY_STATUS_RESOLVED   0x0800
 117 #define MII_M1011_PHY_STATUS_LINK       0x0400
 118
 119 #define MII_M1116R_CONTROL_REG_MAC      21
 120
 121
 122 MODULE_DESCRIPTION("Marvell PHY driver");
 123 MODULE_AUTHOR("Andy Fleming");
 124 MODULE_LICENSE("GPL");
 125
 126 static int marvell_ack_interrupt(struct phy_device *phydev)
 127 {
 128         int err;
 129
 130         /* Clear the interrupts by reading the reg */
 131         err = phy_read(phydev, MII_M1011_IEVENT);
 132
 133         if (err < 0)
 134                 return err;
 135
 136         return 0;
 137 }
 138
 139 static int marvell_config_intr(struct phy_device *phydev)
 140 {
 141         int err;
 142
 143         if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 144                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
 145         else
 146                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
 147
 148         return err;
 149 }
 150
 151 static int marvell_config_aneg(struct phy_device *phydev)
 152 {
 153         int err;
 154
 155         /* The Marvell PHY has an errata which requires
 156          * that certain registers get written in order
 157          * to restart autonegotiation */
 158         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 159
 160         if (err < 0)
 161                 return err;
 162
 163         err = phy_write(phydev, 0x1d, 0x1f);
 164         if (err < 0)
 165                 return err;
 166
 167         err = phy_write(phydev, 0x1e, 0x200c);
 168         if (err < 0)
 169                 return err;
 170
 171         err = phy_write(phydev, 0x1d, 0x5);
 172         if (err < 0)
 173                 return err;
 174
 175         err = phy_write(phydev, 0x1e, 0);
 176         if (err < 0)
 177                 return err;
 178
 179         err = phy_write(phydev, 0x1e, 0x100);
 180         if (err < 0)
 181                 return err;
 182
 183         err = phy_write(phydev, MII_M1011_PHY_SCR,
 184                         MII_M1011_PHY_SCR_AUTO_CROSS);
 185         if (err < 0)
 186                 return err;
 187
 188         err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
 189                         MII_M1111_PHY_LED_DIRECT);
 190         if (err < 0)
 191                 return err;
 192
 193         err = genphy_config_aneg(phydev);
 194         if (err < 0)
 195                 return err;
 196
 197         if (phydev->autoneg != AUTONEG_ENABLE) {
 198                 int bmcr;
 199
 200                 /*
 201                  * A write to speed/duplex bits (that is performed by
 202                  * genphy_config_aneg() call above) must be followed by
 203                  * a software reset. Otherwise, the write has no effect.
 204                  */
 205                 bmcr = phy_read(phydev, MII_BMCR);
 206                 if (bmcr < 0)
 207                         return bmcr;
 208
 209                 err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
 210                 if (err < 0)
 211                         return err;
 212         }
 213
 214         return 0;
 215 }
 216
 217 #ifdef CONFIG_OF_MDIO
 218 /*
 219  * Set and/or override some configuration registers based on the
 220  * marvell,reg-init property stored in the of_node for the phydev.
 221  *
 222  * marvell,reg-init = <reg-page reg mask value>,...;
 223  *
 224  * There may be one or more sets of <reg-page reg mask value>:
 225  *
 226  * reg-page: which register bank to use.
 227  * reg: the register.
 228  * mask: if non-zero, ANDed with existing register value.
 229  * value: ORed with the masked value and written to the regiser.
 230  *
 231  */
 232 static int marvell_of_reg_init(struct phy_device *phydev)
 233 {
 234         const __be32 *paddr;
 235         int len, i, saved_page, current_page, page_changed, ret;
 236
 237         if (!phydev->dev.of_node)
 238                 return 0;
 239
 240         paddr = of_get_property(phydev->dev.of_node, "marvell,reg-init", &len);
 241         if (!paddr || len < (4 * sizeof(*paddr)))
 242                 return 0;
 243
 244         saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 245         if (saved_page < 0)
 246                 return saved_page;
 247         page_changed = 0;
 248         current_page = saved_page;
 249
 250         ret = 0;
 251         len /= sizeof(*paddr);
 252         for (i = 0; i < len - 3; i += 4) {
 253                 u16 reg_page = be32_to_cpup(paddr + i);
 254                 u16 reg = be32_to_cpup(paddr + i + 1);
 255                 u16 mask = be32_to_cpup(paddr + i + 2);
 256                 u16 val_bits = be32_to_cpup(paddr + i + 3);
 257                 int val;
 258
 259                 if (reg_page != current_page) {
 260                         current_page = reg_page;
 261                         page_changed = 1;
 262                         ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
 263                         if (ret < 0)
 264                                 goto err;
 265                 }
 266
 267                 val = 0;
 268                 if (mask) {
 269                         val = phy_read(phydev, reg);
 270                         if (val < 0) {
 271                                 ret = val;
 272                                 goto err;
 273                         }
 274                         val &= mask;
 275                 }
 276                 val |= val_bits;
 277
 278                 ret = phy_write(phydev, reg, val);
 279                 if (ret < 0)
 280                         goto err;
 281
 282         }
 283 err:
 284         if (page_changed) {
 285                 i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
 286                 if (ret == 0)
 287                         ret = i;
 288         }
 289         return ret;
 290 }
 291 #else
 292 static int marvell_of_reg_init(struct phy_device *phydev)
 293 {
 294         return 0;
 295 }
 296 #endif /* CONFIG_OF_MDIO */
 297
 298 static int m88e1121_config_aneg(struct phy_device *phydev)
 299 {
 300         int err, oldpage, mscr;
 301
 302         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 303
 304         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 305                         MII_88E1121_PHY_MSCR_PAGE);
 306         if (err < 0)
 307                 return err;
 308
 309         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
 310             (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
 311             (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
 312             (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 313
 314                 mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
 315                         MII_88E1121_PHY_MSCR_DELAY_MASK;
 316
 317                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
 318                         mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
 319                                  MII_88E1121_PHY_MSCR_TX_DELAY);
 320                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
 321                         mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
 322                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
 323                         mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
 324
 325                 err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
 326                 if (err < 0)
 327                         return err;
 328         }
 329
 330         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 331
 332         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 333         if (err < 0)
 334                 return err;
 335
 336         err = phy_write(phydev, MII_M1011_PHY_SCR,
 337                         MII_M1011_PHY_SCR_AUTO_CROSS);
 338         if (err < 0)
 339                 return err;
 340
 341         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 342
 343         phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_88E1121_PHY_LED_PAGE);
 344         phy_write(phydev, MII_88E1121_PHY_LED_CTRL, MII_88E1121_PHY_LED_DEF);
 345         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 346
 347         err = genphy_config_aneg(phydev);
 348
 349         return err;
 350 }
 351
 352 static int m88e1318_config_aneg(struct phy_device *phydev)
 353 {
 354         int err, oldpage, mscr;
 355
 356         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 357
 358         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 359                         MII_88E1121_PHY_MSCR_PAGE);
 360         if (err < 0)
 361                 return err;
 362
 363         mscr = phy_read(phydev, MII_88E1318S_PHY_MSCR1_REG);
 364         mscr |= MII_88E1318S_PHY_MSCR1_PAD_ODD;
 365
 366         err = phy_write(phydev, MII_88E1318S_PHY_MSCR1_REG, mscr);
 367         if (err < 0)
 368                 return err;
 369
 370         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 371         if (err < 0)
 372                 return err;
 373
 374         return m88e1121_config_aneg(phydev);
 375 }
 376
 377 static int m88e1510_config_aneg(struct phy_device *phydev)
 378 {
 379         int err;
 380
 381         err = m88e1318_config_aneg(phydev);
 382         if (err < 0)
 383                 return err;
 384
 385         return marvell_of_reg_init(phydev);
 386 }
 387
 388 static int m88e1116r_config_init(struct phy_device *phydev)
 389 {
 390         int temp;
 391         int err;
 392
 393         temp = phy_read(phydev, MII_BMCR);
 394         temp |= BMCR_RESET;
 395         err = phy_write(phydev, MII_BMCR, temp);
 396         if (err < 0)
 397                 return err;
 398
 399         mdelay(500);
 400
 401         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
 402         if (err < 0)
 403                 return err;
 404
 405         temp = phy_read(phydev, MII_M1011_PHY_SCR);
 406         temp |= (7 << 12);      /* max number of gigabit attempts */
 407         temp |= (1 << 11);      /* enable downshift */
 408         temp |= MII_M1011_PHY_SCR_AUTO_CROSS;
 409         err = phy_write(phydev, MII_M1011_PHY_SCR, temp);
 410         if (err < 0)
 411                 return err;
 412
 413         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 2);
 414         if (err < 0)
 415                 return err;
 416         temp = phy_read(phydev, MII_M1116R_CONTROL_REG_MAC);
 417         temp |= (1 << 5);
 418         temp |= (1 << 4);
 419         err = phy_write(phydev, MII_M1116R_CONTROL_REG_MAC, temp);
 420         if (err < 0)
 421                 return err;
 422         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
 423         if (err < 0)
 424                 return err;
 425
 426         temp = phy_read(phydev, MII_BMCR);
 427         temp |= BMCR_RESET;
 428         err = phy_write(phydev, MII_BMCR, temp);
 429         if (err < 0)
 430                 return err;
 431
 432         mdelay(500);
 433
 434         return 0;
 435 }
 436
 437 static int m88e1111_config_init(struct phy_device *phydev)
 438 {
 439         int err;
 440         int temp;
 441
 442         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
 443             (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
 444             (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
 445             (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 446
 447                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 448                 if (temp < 0)
 449                         return temp;
 450
 451                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 452                         temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 453                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 454                         temp &= ~MII_M1111_TX_DELAY;
 455                         temp |= MII_M1111_RX_DELAY;
 456                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 457                         temp &= ~MII_M1111_RX_DELAY;
 458                         temp |= MII_M1111_TX_DELAY;
 459                 }
 460
 461                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 462                 if (err < 0)
 463                         return err;
 464
 465                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 466                 if (temp < 0)
 467                         return temp;
 468
 469                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 470
 471                 if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
 472                         temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
 473                 else
 474                         temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
 475
 476                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 477                 if (err < 0)
 478                         return err;
 479         }
 480
 481         if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
 482                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 483                 if (temp < 0)
 484                         return temp;
 485
 486                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 487                 temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
 488                 temp |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 489
 490                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 491                 if (err < 0)
 492                         return err;
 493         }
 494
 495         if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
 496                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 497                 if (temp < 0)
 498                         return temp;
 499                 temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 500                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 501                 if (err < 0)
 502                         return err;
 503
 504                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 505                 if (temp < 0)
 506                         return temp;
 507                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 508                 temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 509                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 510                 if (err < 0)
 511                         return err;
 512
 513                 /* soft reset */
 514                 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 515                 if (err < 0)
 516                         return err;
 517                 do
 518                         temp = phy_read(phydev, MII_BMCR);
 519                 while (temp & BMCR_RESET);
 520
 521                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 522                 if (temp < 0)
 523                         return temp;
 524                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 525                 temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 526                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 527                 if (err < 0)
 528                         return err;
 529         }
 530
 531         err = marvell_of_reg_init(phydev);
 532         if (err < 0)
 533                 return err;
 534
 535         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 536 }
 537
 538 static int m88e1118_config_aneg(struct phy_device *phydev)
 539 {
 540         int err;
 541
 542         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 543         if (err < 0)
 544                 return err;
 545
 546         err = phy_write(phydev, MII_M1011_PHY_SCR,
 547                         MII_M1011_PHY_SCR_AUTO_CROSS);
 548         if (err < 0)
 549                 return err;
 550
 551         err = genphy_config_aneg(phydev);
 552         return 0;
 553 }
 554
 555 static int m88e1118_config_init(struct phy_device *phydev)
 556 {
 557         int err;
 558
 559         /* Change address */
 560         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 561         if (err < 0)
 562                 return err;
 563
 564         /* Enable 1000 Mbit */
 565         err = phy_write(phydev, 0x15, 0x1070);
 566         if (err < 0)
 567                 return err;
 568
 569         /* Change address */
 570         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0003);
 571         if (err < 0)
 572                 return err;
 573
 574         /* Adjust LED Control */
 575         if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
 576                 err = phy_write(phydev, 0x10, 0x1100);
 577         else
 578                 err = phy_write(phydev, 0x10, 0x021e);
 579         if (err < 0)
 580                 return err;
 581
 582         err = marvell_of_reg_init(phydev);
 583         if (err < 0)
 584                 return err;
 585
 586         /* Reset address */
 587         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 588         if (err < 0)
 589                 return err;
 590
 591         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 592 }
 593
 594 static int m88e1149_config_init(struct phy_device *phydev)
 595 {
 596         int err;
 597
 598         /* Change address */
 599         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 600         if (err < 0)
 601                 return err;
 602
 603         /* Enable 1000 Mbit */
 604         err = phy_write(phydev, 0x15, 0x1048);
 605         if (err < 0)
 606                 return err;
 607
 608         err = marvell_of_reg_init(phydev);
 609         if (err < 0)
 610                 return err;
 611
 612         /* Reset address */
 613         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 614         if (err < 0)
 615                 return err;
 616
 617         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 618 }
 619
 620 static int m88e1145_config_init(struct phy_device *phydev)
 621 {
 622         int err;
 623
 624         /* Take care of errata E0 & E1 */
 625         err = phy_write(phydev, 0x1d, 0x001b);
 626         if (err < 0)
 627                 return err;
 628
 629         err = phy_write(phydev, 0x1e, 0x418f);
 630         if (err < 0)
 631                 return err;
 632
 633         err = phy_write(phydev, 0x1d, 0x0016);
 634         if (err < 0)
 635                 return err;
 636
 637         err = phy_write(phydev, 0x1e, 0xa2da);
 638         if (err < 0)
 639                 return err;
 640
 641         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 642                 int temp = phy_read(phydev, MII_M1145_PHY_EXT_CR);
 643                 if (temp < 0)
 644                         return temp;
 645
 646                 temp |= (MII_M1145_RGMII_RX_DELAY | MII_M1145_RGMII_TX_DELAY);
 647
 648                 err = phy_write(phydev, MII_M1145_PHY_EXT_CR, temp);
 649                 if (err < 0)
 650                         return err;
 651
 652                 if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
 653                         err = phy_write(phydev, 0x1d, 0x0012);
 654                         if (err < 0)
 655                                 return err;
 656
 657                         temp = phy_read(phydev, 0x1e);
 658                         if (temp < 0)
 659                                 return temp;
 660
 661                         temp &= 0xf03f;
 662                         temp |= 2 << 9; /* 36 ohm */
 663                         temp |= 2 << 6; /* 39 ohm */
 664
 665                         err = phy_write(phydev, 0x1e, temp);
 666                         if (err < 0)
 667                                 return err;
 668
 669                         err = phy_write(phydev, 0x1d, 0x3);
 670                         if (err < 0)
 671                                 return err;
 672
 673                         err = phy_write(phydev, 0x1e, 0x8000);
 674                         if (err < 0)
 675                                 return err;
 676                 }
 677         }
 678
 679         err = marvell_of_reg_init(phydev);
 680         if (err < 0)
 681                 return err;
 682
 683         return 0;
 684 }
 685
 686 /* marvell_read_status
 687  *
 688  * Generic status code does not detect Fiber correctly!
 689  * Description:
 690  *   Check the link, then figure out the current state
 691  *   by comparing what we advertise with what the link partner
 692  *   advertises.  Start by checking the gigabit possibilities,
 693  *   then move on to 10/100.
 694  */
 695 static int marvell_read_status(struct phy_device *phydev)
 696 {
 697         int adv;
 698         int err;
 699         int lpa;
 700         int status = 0;
 701
 702         /* Update the link, but return if there
 703          * was an error */
 704         err = genphy_update_link(phydev);
 705         if (err)
 706                 return err;
 707
 708         if (AUTONEG_ENABLE == phydev->autoneg) {
 709                 status = phy_read(phydev, MII_M1011_PHY_STATUS);
 710                 if (status < 0)
 711                         return status;
 712
 713                 lpa = phy_read(phydev, MII_LPA);
 714                 if (lpa < 0)
 715                         return lpa;
 716
 717                 adv = phy_read(phydev, MII_ADVERTISE);
 718                 if (adv < 0)
 719                         return adv;
 720
 721                 lpa &= adv;
 722
 723                 if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
 724                         phydev->duplex = DUPLEX_FULL;
 725                 else
 726                         phydev->duplex = DUPLEX_HALF;
 727
 728                 status = status & MII_M1011_PHY_STATUS_SPD_MASK;
 729                 phydev->pause = phydev->asym_pause = 0;
 730
 731                 switch (status) {
 732                 case MII_M1011_PHY_STATUS_1000:
 733                         phydev->speed = SPEED_1000;
 734                         break;
 735
 736                 case MII_M1011_PHY_STATUS_100:
 737                         phydev->speed = SPEED_100;
 738                         break;
 739
 740                 default:
 741                         phydev->speed = SPEED_10;
 742                         break;
 743                 }
 744
 745                 if (phydev->duplex == DUPLEX_FULL) {
 746                         phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
 747                         phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
 748                 }
 749         } else {
 750                 int bmcr = phy_read(phydev, MII_BMCR);
 751
 752                 if (bmcr < 0)
 753                         return bmcr;
 754
 755                 if (bmcr & BMCR_FULLDPLX)
 756                         phydev->duplex = DUPLEX_FULL;
 757                 else
 758                         phydev->duplex = DUPLEX_HALF;
 759
 760                 if (bmcr & BMCR_SPEED1000)
 761                         phydev->speed = SPEED_1000;
 762                 else if (bmcr & BMCR_SPEED100)
 763                         phydev->speed = SPEED_100;
 764                 else
 765                         phydev->speed = SPEED_10;
 766
 767                 phydev->pause = phydev->asym_pause = 0;
 768         }
 769
 770         return 0;
 771 }
 772
 773 static int m88e1121_did_interrupt(struct phy_device *phydev)
 774 {
 775         int imask;
 776
 777         imask = phy_read(phydev, MII_M1011_IEVENT);
 778
 779         if (imask & MII_M1011_IMASK_INIT)
 780                 return 1;
 781
 782         return 0;
 783 }
 784
 785 static void m88e1318_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
 786 {
 787         wol->supported = WAKE_MAGIC;
 788         wol->wolopts = 0;
 789
 790         if (phy_write(phydev, MII_MARVELL_PHY_PAGE,
 791                       MII_88E1318S_PHY_WOL_PAGE) < 0)
 792                 return;
 793
 794         if (phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL) &
 795             MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE)
 796                 wol->wolopts |= WAKE_MAGIC;
 797
 798         if (phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x00) < 0)
 799                 return;
 800 }
 801
 802 static int m88e1318_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
 803 {
 804         int err, oldpage, temp;
 805
 806         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 807
 808         if (wol->wolopts & WAKE_MAGIC) {
 809                 /* Explicitly switch to page 0x00, just to be sure */
 810                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x00);
 811                 if (err < 0)
 812                         return err;
 813
 814                 /* Enable the WOL interrupt */
 815                 temp = phy_read(phydev, MII_88E1318S_PHY_CSIER);
 816                 temp |= MII_88E1318S_PHY_CSIER_WOL_EIE;
 817                 err = phy_write(phydev, MII_88E1318S_PHY_CSIER, temp);
 818                 if (err < 0)
 819                         return err;
 820
 821                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 822                                 MII_88E1318S_PHY_LED_PAGE);
 823                 if (err < 0)
 824                         return err;
 825
 826                 /* Setup LED[2] as interrupt pin (active low) */
 827                 temp = phy_read(phydev, MII_88E1318S_PHY_LED_TCR);
 828                 temp &= ~MII_88E1318S_PHY_LED_TCR_FORCE_INT;
 829                 temp |= MII_88E1318S_PHY_LED_TCR_INTn_ENABLE;
 830                 temp |= MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW;
 831                 err = phy_write(phydev, MII_88E1318S_PHY_LED_TCR, temp);
 832                 if (err < 0)
 833                         return err;
 834
 835                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 836                                 MII_88E1318S_PHY_WOL_PAGE);
 837                 if (err < 0)
 838                         return err;
 839
 840                 /* Store the device address for the magic packet */
 841                 err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD2,
 842                                 ((phydev->attached_dev->dev_addr[5] << 8) |
 843                                  phydev->attached_dev->dev_addr[4]));
 844                 if (err < 0)
 845                         return err;
 846                 err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD1,
 847                                 ((phydev->attached_dev->dev_addr[3] << 8) |
 848                                  phydev->attached_dev->dev_addr[2]));
 849                 if (err < 0)
 850                         return err;
 851                 err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD0,
 852                                 ((phydev->attached_dev->dev_addr[1] << 8) |
 853                                  phydev->attached_dev->dev_addr[0]));
 854                 if (err < 0)
 855                         return err;
 856
 857                 /* Clear WOL status and enable magic packet matching */
 858                 temp = phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
 859                 temp |= MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS;
 860                 temp |= MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE;
 861                 err = phy_write(phydev, MII_88E1318S_PHY_WOL_CTRL, temp);
 862                 if (err < 0)
 863                         return err;
 864         } else {
 865                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 866                                 MII_88E1318S_PHY_WOL_PAGE);
 867                 if (err < 0)
 868                         return err;
 869
 870                 /* Clear WOL status and disable magic packet matching */
 871                 temp = phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
 872                 temp |= MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS;
 873                 temp &= ~MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE;
 874                 err = phy_write(phydev, MII_88E1318S_PHY_WOL_CTRL, temp);
 875                 if (err < 0)
 876                         return err;
 877         }
 878
 879         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 880         if (err < 0)
 881                 return err;
 882
 883         return 0;
 884 }
 885
 886 static struct phy_driver marvell_drivers[] = {
 887         {
 888                 .phy_id = MARVELL_PHY_ID_88E1101,
 889                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 890                 .name = "Marvell 88E1101",
 891                 .features = PHY_GBIT_FEATURES,
 892                 .flags = PHY_HAS_INTERRUPT,
 893                 .config_aneg = &marvell_config_aneg,
 894                 .read_status = &genphy_read_status,
 895                 .ack_interrupt = &marvell_ack_interrupt,
 896                 .config_intr = &marvell_config_intr,
 897                 .driver = { .owner = THIS_MODULE },
 898         },
 899         {
 900                 .phy_id = MARVELL_PHY_ID_88E1112,
 901                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 902                 .name = "Marvell 88E1112",
 903                 .features = PHY_GBIT_FEATURES,
 904                 .flags = PHY_HAS_INTERRUPT,
 905                 .config_init = &m88e1111_config_init,
 906                 .config_aneg = &marvell_config_aneg,
 907                 .read_status = &genphy_read_status,
 908                 .ack_interrupt = &marvell_ack_interrupt,
 909                 .config_intr = &marvell_config_intr,
 910                 .driver = { .owner = THIS_MODULE },
 911         },
 912         {
 913                 .phy_id = MARVELL_PHY_ID_88E1111,
 914                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 915                 .name = "Marvell 88E1111",
 916                 .features = PHY_GBIT_FEATURES,
 917                 .flags = PHY_HAS_INTERRUPT,
 918                 .config_init = &m88e1111_config_init,
 919                 .config_aneg = &marvell_config_aneg,
 920                 .read_status = &marvell_read_status,
 921                 .ack_interrupt = &marvell_ack_interrupt,
 922                 .config_intr = &marvell_config_intr,
 923                 .driver = { .owner = THIS_MODULE },
 924         },
 925         {
 926                 .phy_id = MARVELL_PHY_ID_88E1118,
 927                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 928                 .name = "Marvell 88E1118",
 929                 .features = PHY_GBIT_FEATURES,
 930                 .flags = PHY_HAS_INTERRUPT,
 931                 .config_init = &m88e1118_config_init,
 932                 .config_aneg = &m88e1118_config_aneg,
 933                 .read_status = &genphy_read_status,
 934                 .ack_interrupt = &marvell_ack_interrupt,
 935                 .config_intr = &marvell_config_intr,
 936                 .driver = {.owner = THIS_MODULE,},
 937         },
 938         {
 939                 .phy_id = MARVELL_PHY_ID_88E1121R,
 940                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 941                 .name = "Marvell 88E1121R",
 942                 .features = PHY_GBIT_FEATURES,
 943                 .flags = PHY_HAS_INTERRUPT,
 944                 .config_aneg = &m88e1121_config_aneg,
 945                 .read_status = &marvell_read_status,
 946                 .ack_interrupt = &marvell_ack_interrupt,
 947                 .config_intr = &marvell_config_intr,
 948                 .did_interrupt = &m88e1121_did_interrupt,
 949                 .driver = { .owner = THIS_MODULE },
 950         },
 951         {
 952                 .phy_id = MARVELL_PHY_ID_88E1318S,
 953                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 954                 .name = "Marvell 88E1318S",
 955                 .features = PHY_GBIT_FEATURES,
 956                 .flags = PHY_HAS_INTERRUPT,
 957                 .config_aneg = &m88e1318_config_aneg,
 958                 .read_status = &marvell_read_status,
 959                 .ack_interrupt = &marvell_ack_interrupt,
 960                 .config_intr = &marvell_config_intr,
 961                 .did_interrupt = &m88e1121_did_interrupt,
 962                 .get_wol = &m88e1318_get_wol,
 963                 .set_wol = &m88e1318_set_wol,
 964                 .driver = { .owner = THIS_MODULE },
 965         },
 966         {
 967                 .phy_id = MARVELL_PHY_ID_88E1145,
 968                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 969                 .name = "Marvell 88E1145",
 970                 .features = PHY_GBIT_FEATURES,
 971                 .flags = PHY_HAS_INTERRUPT,
 972                 .config_init = &m88e1145_config_init,
 973                 .config_aneg = &marvell_config_aneg,
 974                 .read_status = &genphy_read_status,
 975                 .ack_interrupt = &marvell_ack_interrupt,
 976                 .config_intr = &marvell_config_intr,
 977                 .driver = { .owner = THIS_MODULE },
 978         },
 979         {
 980                 .phy_id = MARVELL_PHY_ID_88E1149R,
 981                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 982                 .name = "Marvell 88E1149R",
 983                 .features = PHY_GBIT_FEATURES,
 984                 .flags = PHY_HAS_INTERRUPT,
 985                 .config_init = &m88e1149_config_init,
 986                 .config_aneg = &m88e1118_config_aneg,
 987                 .read_status = &genphy_read_status,
 988                 .ack_interrupt = &marvell_ack_interrupt,
 989                 .config_intr = &marvell_config_intr,
 990                 .driver = { .owner = THIS_MODULE },
 991         },
 992         {
 993                 .phy_id = MARVELL_PHY_ID_88E1240,
 994                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 995                 .name = "Marvell 88E1240",
 996                 .features = PHY_GBIT_FEATURES,
 997                 .flags = PHY_HAS_INTERRUPT,
 998                 .config_init = &m88e1111_config_init,
 999                 .config_aneg = &marvell_config_aneg,
1000                 .read_status = &genphy_read_status,
1001                 .ack_interrupt = &marvell_ack_interrupt,
1002                 .config_intr = &marvell_config_intr,
1003                 .driver = { .owner = THIS_MODULE },
1004         },
1005         {
1006                 .phy_id = MARVELL_PHY_ID_88E1116R,
1007                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1008                 .name = "Marvell 88E1116R",
1009                 .features = PHY_GBIT_FEATURES,
1010                 .flags = PHY_HAS_INTERRUPT,
1011                 .config_init = &m88e1116r_config_init,
1012                 .config_aneg = &genphy_config_aneg,
1013                 .read_status = &genphy_read_status,
1014                 .ack_interrupt = &marvell_ack_interrupt,
1015                 .config_intr = &marvell_config_intr,
1016                 .driver = { .owner = THIS_MODULE },
1017         },
1018         {
1019                 .phy_id = MARVELL_PHY_ID_88E1510,
1020                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1021                 .name = "Marvell 88E1510",
1022                 .features = PHY_GBIT_FEATURES,
1023                 .flags = PHY_HAS_INTERRUPT,
1024                 .config_aneg = &m88e1510_config_aneg,
1025                 .read_status = &marvell_read_status,
1026                 .ack_interrupt = &marvell_ack_interrupt,
1027                 .config_intr = &marvell_config_intr,
1028                 .did_interrupt = &m88e1121_did_interrupt,
1029                 .driver = { .owner = THIS_MODULE },
1030         },
1031 };
1032
1033 static int __init marvell_init(void)
1034 {
1035         return phy_drivers_register(marvell_drivers,
1036                  ARRAY_SIZE(marvell_drivers));
1037 }
1038
1039 static void __exit marvell_exit(void)
1040 {
1041         phy_drivers_unregister(marvell_drivers,
1042                  ARRAY_SIZE(marvell_drivers));
1043 }
1044
1045 module_init(marvell_init);
1046 module_exit(marvell_exit);
1047
1048 static struct mdio_device_id __maybe_unused marvell_tbl[] = {
1049         { MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK },
1050         { MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK },
1051         { MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK },
1052         { MARVELL_PHY_ID_88E1118, MARVELL_PHY_ID_MASK },
1053         { MARVELL_PHY_ID_88E1121R, MARVELL_PHY_ID_MASK },
1054         { MARVELL_PHY_ID_88E1145, MARVELL_PHY_ID_MASK },
1055         { MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
1056         { MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
1057         { MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
1058         { MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
1059         { MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
1060         { }
1061 };
1062
1063 MODULE_DEVICE_TABLE(mdio, marvell_tbl);