linux/drivers/net/phy/marvell.c
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   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 <michael@stapelberg.de>
  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
 122MODULE_DESCRIPTION("Marvell PHY driver");
 123MODULE_AUTHOR("Andy Fleming");
 124MODULE_LICENSE("GPL");
 125
 126static 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
 139static 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
 151static 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 */
 232static 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        }
 283err:
 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
 292static int marvell_of_reg_init(struct phy_device *phydev)
 293{
 294        return 0;
 295}
 296#endif /* CONFIG_OF_MDIO */
 297
 298static 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
 352static 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
 377static 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
 388static 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
 437static 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
 538static 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
 555static 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
 594static 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
 620static 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 */
 695static 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
 773static 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
 785static 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
 802static 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
 886static 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                .resume = &genphy_resume,
 898                .suspend = &genphy_suspend,
 899                .driver = { .owner = THIS_MODULE },
 900        },
 901        {
 902                .phy_id = MARVELL_PHY_ID_88E1112,
 903                .phy_id_mask = MARVELL_PHY_ID_MASK,
 904                .name = "Marvell 88E1112",
 905                .features = PHY_GBIT_FEATURES,
 906                .flags = PHY_HAS_INTERRUPT,
 907                .config_init = &m88e1111_config_init,
 908                .config_aneg = &marvell_config_aneg,
 909                .read_status = &genphy_read_status,
 910                .ack_interrupt = &marvell_ack_interrupt,
 911                .config_intr = &marvell_config_intr,
 912                .resume = &genphy_resume,
 913                .suspend = &genphy_suspend,
 914                .driver = { .owner = THIS_MODULE },
 915        },
 916        {
 917                .phy_id = MARVELL_PHY_ID_88E1111,
 918                .phy_id_mask = MARVELL_PHY_ID_MASK,
 919                .name = "Marvell 88E1111",
 920                .features = PHY_GBIT_FEATURES,
 921                .flags = PHY_HAS_INTERRUPT,
 922                .config_init = &m88e1111_config_init,
 923                .config_aneg = &marvell_config_aneg,
 924                .read_status = &marvell_read_status,
 925                .ack_interrupt = &marvell_ack_interrupt,
 926                .config_intr = &marvell_config_intr,
 927                .resume = &genphy_resume,
 928                .suspend = &genphy_suspend,
 929                .driver = { .owner = THIS_MODULE },
 930        },
 931        {
 932                .phy_id = MARVELL_PHY_ID_88E1118,
 933                .phy_id_mask = MARVELL_PHY_ID_MASK,
 934                .name = "Marvell 88E1118",
 935                .features = PHY_GBIT_FEATURES,
 936                .flags = PHY_HAS_INTERRUPT,
 937                .config_init = &m88e1118_config_init,
 938                .config_aneg = &m88e1118_config_aneg,
 939                .read_status = &genphy_read_status,
 940                .ack_interrupt = &marvell_ack_interrupt,
 941                .config_intr = &marvell_config_intr,
 942                .resume = &genphy_resume,
 943                .suspend = &genphy_suspend,
 944                .driver = {.owner = THIS_MODULE,},
 945        },
 946        {
 947                .phy_id = MARVELL_PHY_ID_88E1121R,
 948                .phy_id_mask = MARVELL_PHY_ID_MASK,
 949                .name = "Marvell 88E1121R",
 950                .features = PHY_GBIT_FEATURES,
 951                .flags = PHY_HAS_INTERRUPT,
 952                .config_aneg = &m88e1121_config_aneg,
 953                .read_status = &marvell_read_status,
 954                .ack_interrupt = &marvell_ack_interrupt,
 955                .config_intr = &marvell_config_intr,
 956                .did_interrupt = &m88e1121_did_interrupt,
 957                .resume = &genphy_resume,
 958                .suspend = &genphy_suspend,
 959                .driver = { .owner = THIS_MODULE },
 960        },
 961        {
 962                .phy_id = MARVELL_PHY_ID_88E1318S,
 963                .phy_id_mask = MARVELL_PHY_ID_MASK,
 964                .name = "Marvell 88E1318S",
 965                .features = PHY_GBIT_FEATURES,
 966                .flags = PHY_HAS_INTERRUPT,
 967                .config_aneg = &m88e1318_config_aneg,
 968                .read_status = &marvell_read_status,
 969                .ack_interrupt = &marvell_ack_interrupt,
 970                .config_intr = &marvell_config_intr,
 971                .did_interrupt = &m88e1121_did_interrupt,
 972                .get_wol = &m88e1318_get_wol,
 973                .set_wol = &m88e1318_set_wol,
 974                .resume = &genphy_resume,
 975                .suspend = &genphy_suspend,
 976                .driver = { .owner = THIS_MODULE },
 977        },
 978        {
 979                .phy_id = MARVELL_PHY_ID_88E1145,
 980                .phy_id_mask = MARVELL_PHY_ID_MASK,
 981                .name = "Marvell 88E1145",
 982                .features = PHY_GBIT_FEATURES,
 983                .flags = PHY_HAS_INTERRUPT,
 984                .config_init = &m88e1145_config_init,
 985                .config_aneg = &marvell_config_aneg,
 986                .read_status = &genphy_read_status,
 987                .ack_interrupt = &marvell_ack_interrupt,
 988                .config_intr = &marvell_config_intr,
 989                .resume = &genphy_resume,
 990                .suspend = &genphy_suspend,
 991                .driver = { .owner = THIS_MODULE },
 992        },
 993        {
 994                .phy_id = MARVELL_PHY_ID_88E1149R,
 995                .phy_id_mask = MARVELL_PHY_ID_MASK,
 996                .name = "Marvell 88E1149R",
 997                .features = PHY_GBIT_FEATURES,
 998                .flags = PHY_HAS_INTERRUPT,
 999                .config_init = &m88e1149_config_init,
1000                .config_aneg = &m88e1118_config_aneg,
1001                .read_status = &genphy_read_status,
1002                .ack_interrupt = &marvell_ack_interrupt,
1003                .config_intr = &marvell_config_intr,
1004                .resume = &genphy_resume,
1005                .suspend = &genphy_suspend,
1006                .driver = { .owner = THIS_MODULE },
1007        },
1008        {
1009                .phy_id = MARVELL_PHY_ID_88E1240,
1010                .phy_id_mask = MARVELL_PHY_ID_MASK,
1011                .name = "Marvell 88E1240",
1012                .features = PHY_GBIT_FEATURES,
1013                .flags = PHY_HAS_INTERRUPT,
1014                .config_init = &m88e1111_config_init,
1015                .config_aneg = &marvell_config_aneg,
1016                .read_status = &genphy_read_status,
1017                .ack_interrupt = &marvell_ack_interrupt,
1018                .config_intr = &marvell_config_intr,
1019                .resume = &genphy_resume,
1020                .suspend = &genphy_suspend,
1021                .driver = { .owner = THIS_MODULE },
1022        },
1023        {
1024                .phy_id = MARVELL_PHY_ID_88E1116R,
1025                .phy_id_mask = MARVELL_PHY_ID_MASK,
1026                .name = "Marvell 88E1116R",
1027                .features = PHY_GBIT_FEATURES,
1028                .flags = PHY_HAS_INTERRUPT,
1029                .config_init = &m88e1116r_config_init,
1030                .config_aneg = &genphy_config_aneg,
1031                .read_status = &genphy_read_status,
1032                .ack_interrupt = &marvell_ack_interrupt,
1033                .config_intr = &marvell_config_intr,
1034                .resume = &genphy_resume,
1035                .suspend = &genphy_suspend,
1036                .driver = { .owner = THIS_MODULE },
1037        },
1038        {
1039                .phy_id = MARVELL_PHY_ID_88E1510,
1040                .phy_id_mask = MARVELL_PHY_ID_MASK,
1041                .name = "Marvell 88E1510",
1042                .features = PHY_GBIT_FEATURES,
1043                .flags = PHY_HAS_INTERRUPT,
1044                .config_aneg = &m88e1510_config_aneg,
1045                .read_status = &marvell_read_status,
1046                .ack_interrupt = &marvell_ack_interrupt,
1047                .config_intr = &marvell_config_intr,
1048                .did_interrupt = &m88e1121_did_interrupt,
1049                .resume = &genphy_resume,
1050                .suspend = &genphy_suspend,
1051                .driver = { .owner = THIS_MODULE },
1052        },
1053};
1054
1055static int __init marvell_init(void)
1056{
1057        return phy_drivers_register(marvell_drivers,
1058                 ARRAY_SIZE(marvell_drivers));
1059}
1060
1061static void __exit marvell_exit(void)
1062{
1063        phy_drivers_unregister(marvell_drivers,
1064                 ARRAY_SIZE(marvell_drivers));
1065}
1066
1067module_init(marvell_init);
1068module_exit(marvell_exit);
1069
1070static struct mdio_device_id __maybe_unused marvell_tbl[] = {
1071        { MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK },
1072        { MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK },
1073        { MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK },
1074        { MARVELL_PHY_ID_88E1118, MARVELL_PHY_ID_MASK },
1075        { MARVELL_PHY_ID_88E1121R, MARVELL_PHY_ID_MASK },
1076        { MARVELL_PHY_ID_88E1145, MARVELL_PHY_ID_MASK },
1077        { MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
1078        { MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
1079        { MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
1080        { MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
1081        { MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
1082        { }
1083};
1084
1085MODULE_DEVICE_TABLE(mdio, marvell_tbl);
1086