linux/drivers/net/phy/micrel.c
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   1/*
   2 * drivers/net/phy/micrel.c
   3 *
   4 * Driver for Micrel PHYs
   5 *
   6 * Author: David J. Choi
   7 *
   8 * Copyright (c) 2010-2013 Micrel, Inc.
   9 * Copyright (c) 2014 Johan Hovold <johan@kernel.org>
  10 *
  11 * This program is free software; you can redistribute  it and/or modify it
  12 * under  the terms of  the GNU General  Public License as published by the
  13 * Free Software Foundation;  either version 2 of the  License, or (at your
  14 * option) any later version.
  15 *
  16 * Support : Micrel Phys:
  17 *              Giga phys: ksz9021, ksz9031
  18 *              100/10 Phys : ksz8001, ksz8721, ksz8737, ksz8041
  19 *                         ksz8021, ksz8031, ksz8051,
  20 *                         ksz8081, ksz8091,
  21 *                         ksz8061,
  22 *              Switch : ksz8873, ksz886x
  23 */
  24
  25#include <linux/kernel.h>
  26#include <linux/module.h>
  27#include <linux/phy.h>
  28#include <linux/micrel_phy.h>
  29#include <linux/of.h>
  30#include <linux/clk.h>
  31
  32/* Operation Mode Strap Override */
  33#define MII_KSZPHY_OMSO                         0x16
  34#define KSZPHY_OMSO_B_CAST_OFF                  BIT(9)
  35#define KSZPHY_OMSO_NAND_TREE_ON                BIT(5)
  36#define KSZPHY_OMSO_RMII_OVERRIDE               BIT(1)
  37#define KSZPHY_OMSO_MII_OVERRIDE                BIT(0)
  38
  39/* general Interrupt control/status reg in vendor specific block. */
  40#define MII_KSZPHY_INTCS                        0x1B
  41#define KSZPHY_INTCS_JABBER                     BIT(15)
  42#define KSZPHY_INTCS_RECEIVE_ERR                BIT(14)
  43#define KSZPHY_INTCS_PAGE_RECEIVE               BIT(13)
  44#define KSZPHY_INTCS_PARELLEL                   BIT(12)
  45#define KSZPHY_INTCS_LINK_PARTNER_ACK           BIT(11)
  46#define KSZPHY_INTCS_LINK_DOWN                  BIT(10)
  47#define KSZPHY_INTCS_REMOTE_FAULT               BIT(9)
  48#define KSZPHY_INTCS_LINK_UP                    BIT(8)
  49#define KSZPHY_INTCS_ALL                        (KSZPHY_INTCS_LINK_UP |\
  50                                                KSZPHY_INTCS_LINK_DOWN)
  51
  52/* PHY Control 1 */
  53#define MII_KSZPHY_CTRL_1                       0x1e
  54
  55/* PHY Control 2 / PHY Control (if no PHY Control 1) */
  56#define MII_KSZPHY_CTRL_2                       0x1f
  57#define MII_KSZPHY_CTRL                         MII_KSZPHY_CTRL_2
  58/* bitmap of PHY register to set interrupt mode */
  59#define KSZPHY_CTRL_INT_ACTIVE_HIGH             BIT(9)
  60#define KSZPHY_RMII_REF_CLK_SEL                 BIT(7)
  61
  62/* Write/read to/from extended registers */
  63#define MII_KSZPHY_EXTREG                       0x0b
  64#define KSZPHY_EXTREG_WRITE                     0x8000
  65
  66#define MII_KSZPHY_EXTREG_WRITE                 0x0c
  67#define MII_KSZPHY_EXTREG_READ                  0x0d
  68
  69/* Extended registers */
  70#define MII_KSZPHY_CLK_CONTROL_PAD_SKEW         0x104
  71#define MII_KSZPHY_RX_DATA_PAD_SKEW             0x105
  72#define MII_KSZPHY_TX_DATA_PAD_SKEW             0x106
  73
  74#define PS_TO_REG                               200
  75
  76struct kszphy_type {
  77        u32 led_mode_reg;
  78        u16 interrupt_level_mask;
  79        bool has_broadcast_disable;
  80        bool has_nand_tree_disable;
  81        bool has_rmii_ref_clk_sel;
  82};
  83
  84struct kszphy_priv {
  85        const struct kszphy_type *type;
  86        int led_mode;
  87        bool rmii_ref_clk_sel;
  88        bool rmii_ref_clk_sel_val;
  89};
  90
  91static const struct kszphy_type ksz8021_type = {
  92        .led_mode_reg           = MII_KSZPHY_CTRL_2,
  93        .has_broadcast_disable  = true,
  94        .has_nand_tree_disable  = true,
  95        .has_rmii_ref_clk_sel   = true,
  96};
  97
  98static const struct kszphy_type ksz8041_type = {
  99        .led_mode_reg           = MII_KSZPHY_CTRL_1,
 100};
 101
 102static const struct kszphy_type ksz8051_type = {
 103        .led_mode_reg           = MII_KSZPHY_CTRL_2,
 104        .has_nand_tree_disable  = true,
 105};
 106
 107static const struct kszphy_type ksz8081_type = {
 108        .led_mode_reg           = MII_KSZPHY_CTRL_2,
 109        .has_broadcast_disable  = true,
 110        .has_nand_tree_disable  = true,
 111        .has_rmii_ref_clk_sel   = true,
 112};
 113
 114static const struct kszphy_type ks8737_type = {
 115        .interrupt_level_mask   = BIT(14),
 116};
 117
 118static const struct kszphy_type ksz9021_type = {
 119        .interrupt_level_mask   = BIT(14),
 120};
 121
 122static int kszphy_extended_write(struct phy_device *phydev,
 123                                u32 regnum, u16 val)
 124{
 125        phy_write(phydev, MII_KSZPHY_EXTREG, KSZPHY_EXTREG_WRITE | regnum);
 126        return phy_write(phydev, MII_KSZPHY_EXTREG_WRITE, val);
 127}
 128
 129static int kszphy_extended_read(struct phy_device *phydev,
 130                                u32 regnum)
 131{
 132        phy_write(phydev, MII_KSZPHY_EXTREG, regnum);
 133        return phy_read(phydev, MII_KSZPHY_EXTREG_READ);
 134}
 135
 136static int kszphy_ack_interrupt(struct phy_device *phydev)
 137{
 138        /* bit[7..0] int status, which is a read and clear register. */
 139        int rc;
 140
 141        rc = phy_read(phydev, MII_KSZPHY_INTCS);
 142
 143        return (rc < 0) ? rc : 0;
 144}
 145
 146static int kszphy_config_intr(struct phy_device *phydev)
 147{
 148        const struct kszphy_type *type = phydev->drv->driver_data;
 149        int temp;
 150        u16 mask;
 151
 152        if (type && type->interrupt_level_mask)
 153                mask = type->interrupt_level_mask;
 154        else
 155                mask = KSZPHY_CTRL_INT_ACTIVE_HIGH;
 156
 157        /* set the interrupt pin active low */
 158        temp = phy_read(phydev, MII_KSZPHY_CTRL);
 159        if (temp < 0)
 160                return temp;
 161        temp &= ~mask;
 162        phy_write(phydev, MII_KSZPHY_CTRL, temp);
 163
 164        /* enable / disable interrupts */
 165        if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 166                temp = KSZPHY_INTCS_ALL;
 167        else
 168                temp = 0;
 169
 170        return phy_write(phydev, MII_KSZPHY_INTCS, temp);
 171}
 172
 173static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val)
 174{
 175        int ctrl;
 176
 177        ctrl = phy_read(phydev, MII_KSZPHY_CTRL);
 178        if (ctrl < 0)
 179                return ctrl;
 180
 181        if (val)
 182                ctrl |= KSZPHY_RMII_REF_CLK_SEL;
 183        else
 184                ctrl &= ~KSZPHY_RMII_REF_CLK_SEL;
 185
 186        return phy_write(phydev, MII_KSZPHY_CTRL, ctrl);
 187}
 188
 189static int kszphy_setup_led(struct phy_device *phydev, u32 reg, int val)
 190{
 191        int rc, temp, shift;
 192
 193        switch (reg) {
 194        case MII_KSZPHY_CTRL_1:
 195                shift = 14;
 196                break;
 197        case MII_KSZPHY_CTRL_2:
 198                shift = 4;
 199                break;
 200        default:
 201                return -EINVAL;
 202        }
 203
 204        temp = phy_read(phydev, reg);
 205        if (temp < 0) {
 206                rc = temp;
 207                goto out;
 208        }
 209
 210        temp &= ~(3 << shift);
 211        temp |= val << shift;
 212        rc = phy_write(phydev, reg, temp);
 213out:
 214        if (rc < 0)
 215                dev_err(&phydev->dev, "failed to set led mode\n");
 216
 217        return rc;
 218}
 219
 220/* Disable PHY address 0 as the broadcast address, so that it can be used as a
 221 * unique (non-broadcast) address on a shared bus.
 222 */
 223static int kszphy_broadcast_disable(struct phy_device *phydev)
 224{
 225        int ret;
 226
 227        ret = phy_read(phydev, MII_KSZPHY_OMSO);
 228        if (ret < 0)
 229                goto out;
 230
 231        ret = phy_write(phydev, MII_KSZPHY_OMSO, ret | KSZPHY_OMSO_B_CAST_OFF);
 232out:
 233        if (ret)
 234                dev_err(&phydev->dev, "failed to disable broadcast address\n");
 235
 236        return ret;
 237}
 238
 239static int kszphy_nand_tree_disable(struct phy_device *phydev)
 240{
 241        int ret;
 242
 243        ret = phy_read(phydev, MII_KSZPHY_OMSO);
 244        if (ret < 0)
 245                goto out;
 246
 247        if (!(ret & KSZPHY_OMSO_NAND_TREE_ON))
 248                return 0;
 249
 250        ret = phy_write(phydev, MII_KSZPHY_OMSO,
 251                        ret & ~KSZPHY_OMSO_NAND_TREE_ON);
 252out:
 253        if (ret)
 254                dev_err(&phydev->dev, "failed to disable NAND tree mode\n");
 255
 256        return ret;
 257}
 258
 259static int kszphy_config_init(struct phy_device *phydev)
 260{
 261        struct kszphy_priv *priv = phydev->priv;
 262        const struct kszphy_type *type;
 263        int ret;
 264
 265        if (!priv)
 266                return 0;
 267
 268        type = priv->type;
 269
 270        if (type->has_broadcast_disable)
 271                kszphy_broadcast_disable(phydev);
 272
 273        if (type->has_nand_tree_disable)
 274                kszphy_nand_tree_disable(phydev);
 275
 276        if (priv->rmii_ref_clk_sel) {
 277                ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val);
 278                if (ret) {
 279                        dev_err(&phydev->dev, "failed to set rmii reference clock\n");
 280                        return ret;
 281                }
 282        }
 283
 284        if (priv->led_mode >= 0)
 285                kszphy_setup_led(phydev, type->led_mode_reg, priv->led_mode);
 286
 287        return 0;
 288}
 289
 290static int ksz9021_load_values_from_of(struct phy_device *phydev,
 291                                       const struct device_node *of_node,
 292                                       u16 reg,
 293                                       const char *field1, const char *field2,
 294                                       const char *field3, const char *field4)
 295{
 296        int val1 = -1;
 297        int val2 = -2;
 298        int val3 = -3;
 299        int val4 = -4;
 300        int newval;
 301        int matches = 0;
 302
 303        if (!of_property_read_u32(of_node, field1, &val1))
 304                matches++;
 305
 306        if (!of_property_read_u32(of_node, field2, &val2))
 307                matches++;
 308
 309        if (!of_property_read_u32(of_node, field3, &val3))
 310                matches++;
 311
 312        if (!of_property_read_u32(of_node, field4, &val4))
 313                matches++;
 314
 315        if (!matches)
 316                return 0;
 317
 318        if (matches < 4)
 319                newval = kszphy_extended_read(phydev, reg);
 320        else
 321                newval = 0;
 322
 323        if (val1 != -1)
 324                newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0);
 325
 326        if (val2 != -2)
 327                newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4);
 328
 329        if (val3 != -3)
 330                newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8);
 331
 332        if (val4 != -4)
 333                newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12);
 334
 335        return kszphy_extended_write(phydev, reg, newval);
 336}
 337
 338static int ksz9021_config_init(struct phy_device *phydev)
 339{
 340        const struct device *dev = &phydev->dev;
 341        const struct device_node *of_node = dev->of_node;
 342
 343        if (!of_node && dev->parent->of_node)
 344                of_node = dev->parent->of_node;
 345
 346        if (of_node) {
 347                ksz9021_load_values_from_of(phydev, of_node,
 348                                    MII_KSZPHY_CLK_CONTROL_PAD_SKEW,
 349                                    "txen-skew-ps", "txc-skew-ps",
 350                                    "rxdv-skew-ps", "rxc-skew-ps");
 351                ksz9021_load_values_from_of(phydev, of_node,
 352                                    MII_KSZPHY_RX_DATA_PAD_SKEW,
 353                                    "rxd0-skew-ps", "rxd1-skew-ps",
 354                                    "rxd2-skew-ps", "rxd3-skew-ps");
 355                ksz9021_load_values_from_of(phydev, of_node,
 356                                    MII_KSZPHY_TX_DATA_PAD_SKEW,
 357                                    "txd0-skew-ps", "txd1-skew-ps",
 358                                    "txd2-skew-ps", "txd3-skew-ps");
 359        }
 360        return 0;
 361}
 362
 363#define MII_KSZ9031RN_MMD_CTRL_REG      0x0d
 364#define MII_KSZ9031RN_MMD_REGDATA_REG   0x0e
 365#define OP_DATA                         1
 366#define KSZ9031_PS_TO_REG               60
 367
 368/* Extended registers */
 369/* MMD Address 0x0 */
 370#define MII_KSZ9031RN_FLP_BURST_TX_LO   3
 371#define MII_KSZ9031RN_FLP_BURST_TX_HI   4
 372
 373/* MMD Address 0x2 */
 374#define MII_KSZ9031RN_CONTROL_PAD_SKEW  4
 375#define MII_KSZ9031RN_RX_DATA_PAD_SKEW  5
 376#define MII_KSZ9031RN_TX_DATA_PAD_SKEW  6
 377#define MII_KSZ9031RN_CLK_PAD_SKEW      8
 378
 379static int ksz9031_extended_write(struct phy_device *phydev,
 380                                  u8 mode, u32 dev_addr, u32 regnum, u16 val)
 381{
 382        phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr);
 383        phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum);
 384        phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr);
 385        return phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, val);
 386}
 387
 388static int ksz9031_extended_read(struct phy_device *phydev,
 389                                 u8 mode, u32 dev_addr, u32 regnum)
 390{
 391        phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr);
 392        phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum);
 393        phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr);
 394        return phy_read(phydev, MII_KSZ9031RN_MMD_REGDATA_REG);
 395}
 396
 397static int ksz9031_of_load_skew_values(struct phy_device *phydev,
 398                                       const struct device_node *of_node,
 399                                       u16 reg, size_t field_sz,
 400                                       const char *field[], u8 numfields)
 401{
 402        int val[4] = {-1, -2, -3, -4};
 403        int matches = 0;
 404        u16 mask;
 405        u16 maxval;
 406        u16 newval;
 407        int i;
 408
 409        for (i = 0; i < numfields; i++)
 410                if (!of_property_read_u32(of_node, field[i], val + i))
 411                        matches++;
 412
 413        if (!matches)
 414                return 0;
 415
 416        if (matches < numfields)
 417                newval = ksz9031_extended_read(phydev, OP_DATA, 2, reg);
 418        else
 419                newval = 0;
 420
 421        maxval = (field_sz == 4) ? 0xf : 0x1f;
 422        for (i = 0; i < numfields; i++)
 423                if (val[i] != -(i + 1)) {
 424                        mask = 0xffff;
 425                        mask ^= maxval << (field_sz * i);
 426                        newval = (newval & mask) |
 427                                (((val[i] / KSZ9031_PS_TO_REG) & maxval)
 428                                        << (field_sz * i));
 429                }
 430
 431        return ksz9031_extended_write(phydev, OP_DATA, 2, reg, newval);
 432}
 433
 434static int ksz9031_center_flp_timing(struct phy_device *phydev)
 435{
 436        int result;
 437
 438        /* Center KSZ9031RNX FLP timing at 16ms. */
 439        result = ksz9031_extended_write(phydev, OP_DATA, 0,
 440                                        MII_KSZ9031RN_FLP_BURST_TX_HI, 0x0006);
 441        result = ksz9031_extended_write(phydev, OP_DATA, 0,
 442                                        MII_KSZ9031RN_FLP_BURST_TX_LO, 0x1A80);
 443
 444        if (result)
 445                return result;
 446
 447        return genphy_restart_aneg(phydev);
 448}
 449
 450static int ksz9031_config_init(struct phy_device *phydev)
 451{
 452        const struct device *dev = &phydev->dev;
 453        const struct device_node *of_node = dev->of_node;
 454        static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"};
 455        static const char *rx_data_skews[4] = {
 456                "rxd0-skew-ps", "rxd1-skew-ps",
 457                "rxd2-skew-ps", "rxd3-skew-ps"
 458        };
 459        static const char *tx_data_skews[4] = {
 460                "txd0-skew-ps", "txd1-skew-ps",
 461                "txd2-skew-ps", "txd3-skew-ps"
 462        };
 463        static const char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"};
 464
 465        if (!of_node && dev->parent->of_node)
 466                of_node = dev->parent->of_node;
 467
 468        if (of_node) {
 469                ksz9031_of_load_skew_values(phydev, of_node,
 470                                MII_KSZ9031RN_CLK_PAD_SKEW, 5,
 471                                clk_skews, 2);
 472
 473                ksz9031_of_load_skew_values(phydev, of_node,
 474                                MII_KSZ9031RN_CONTROL_PAD_SKEW, 4,
 475                                control_skews, 2);
 476
 477                ksz9031_of_load_skew_values(phydev, of_node,
 478                                MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4,
 479                                rx_data_skews, 4);
 480
 481                ksz9031_of_load_skew_values(phydev, of_node,
 482                                MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4,
 483                                tx_data_skews, 4);
 484        }
 485
 486        return ksz9031_center_flp_timing(phydev);
 487}
 488
 489#define KSZ8873MLL_GLOBAL_CONTROL_4     0x06
 490#define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX      BIT(6)
 491#define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED       BIT(4)
 492static int ksz8873mll_read_status(struct phy_device *phydev)
 493{
 494        int regval;
 495
 496        /* dummy read */
 497        regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);
 498
 499        regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);
 500
 501        if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX)
 502                phydev->duplex = DUPLEX_HALF;
 503        else
 504                phydev->duplex = DUPLEX_FULL;
 505
 506        if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED)
 507                phydev->speed = SPEED_10;
 508        else
 509                phydev->speed = SPEED_100;
 510
 511        phydev->link = 1;
 512        phydev->pause = phydev->asym_pause = 0;
 513
 514        return 0;
 515}
 516
 517static int ksz9031_read_status(struct phy_device *phydev)
 518{
 519        int err;
 520        int regval;
 521
 522        err = genphy_read_status(phydev);
 523        if (err)
 524                return err;
 525
 526        /* Make sure the PHY is not broken. Read idle error count,
 527         * and reset the PHY if it is maxed out.
 528         */
 529        regval = phy_read(phydev, MII_STAT1000);
 530        if ((regval & 0xFF) == 0xFF) {
 531                phy_init_hw(phydev);
 532                phydev->link = 0;
 533        }
 534
 535        return 0;
 536}
 537
 538static int ksz8873mll_config_aneg(struct phy_device *phydev)
 539{
 540        return 0;
 541}
 542
 543/* This routine returns -1 as an indication to the caller that the
 544 * Micrel ksz9021 10/100/1000 PHY does not support standard IEEE
 545 * MMD extended PHY registers.
 546 */
 547static int
 548ksz9021_rd_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
 549                      int regnum)
 550{
 551        return -1;
 552}
 553
 554/* This routine does nothing since the Micrel ksz9021 does not support
 555 * standard IEEE MMD extended PHY registers.
 556 */
 557static void
 558ksz9021_wr_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
 559                      int regnum, u32 val)
 560{
 561}
 562
 563static int kszphy_probe(struct phy_device *phydev)
 564{
 565        const struct kszphy_type *type = phydev->drv->driver_data;
 566        const struct device_node *np = phydev->dev.of_node;
 567        struct kszphy_priv *priv;
 568        struct clk *clk;
 569        int ret;
 570
 571        priv = devm_kzalloc(&phydev->dev, sizeof(*priv), GFP_KERNEL);
 572        if (!priv)
 573                return -ENOMEM;
 574
 575        phydev->priv = priv;
 576
 577        priv->type = type;
 578
 579        if (type->led_mode_reg) {
 580                ret = of_property_read_u32(np, "micrel,led-mode",
 581                                &priv->led_mode);
 582                if (ret)
 583                        priv->led_mode = -1;
 584
 585                if (priv->led_mode > 3) {
 586                        dev_err(&phydev->dev, "invalid led mode: 0x%02x\n",
 587                                        priv->led_mode);
 588                        priv->led_mode = -1;
 589                }
 590        } else {
 591                priv->led_mode = -1;
 592        }
 593
 594        clk = devm_clk_get(&phydev->dev, "rmii-ref");
 595        /* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */
 596        if (!IS_ERR_OR_NULL(clk)) {
 597                unsigned long rate = clk_get_rate(clk);
 598                bool rmii_ref_clk_sel_25_mhz;
 599
 600                priv->rmii_ref_clk_sel = type->has_rmii_ref_clk_sel;
 601                rmii_ref_clk_sel_25_mhz = of_property_read_bool(np,
 602                                "micrel,rmii-reference-clock-select-25-mhz");
 603
 604                if (rate > 24500000 && rate < 25500000) {
 605                        priv->rmii_ref_clk_sel_val = rmii_ref_clk_sel_25_mhz;
 606                } else if (rate > 49500000 && rate < 50500000) {
 607                        priv->rmii_ref_clk_sel_val = !rmii_ref_clk_sel_25_mhz;
 608                } else {
 609                        dev_err(&phydev->dev, "Clock rate out of range: %ld\n", rate);
 610                        return -EINVAL;
 611                }
 612        }
 613
 614        /* Support legacy board-file configuration */
 615        if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) {
 616                priv->rmii_ref_clk_sel = true;
 617                priv->rmii_ref_clk_sel_val = true;
 618        }
 619
 620        return 0;
 621}
 622
 623static struct phy_driver ksphy_driver[] = {
 624{
 625        .phy_id         = PHY_ID_KS8737,
 626        .phy_id_mask    = 0x00fffff0,
 627        .name           = "Micrel KS8737",
 628        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
 629        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 630        .driver_data    = &ks8737_type,
 631        .config_init    = kszphy_config_init,
 632        .config_aneg    = genphy_config_aneg,
 633        .read_status    = genphy_read_status,
 634        .ack_interrupt  = kszphy_ack_interrupt,
 635        .config_intr    = kszphy_config_intr,
 636        .suspend        = genphy_suspend,
 637        .resume         = genphy_resume,
 638        .driver         = { .owner = THIS_MODULE,},
 639}, {
 640        .phy_id         = PHY_ID_KSZ8021,
 641        .phy_id_mask    = 0x00ffffff,
 642        .name           = "Micrel KSZ8021 or KSZ8031",
 643        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause |
 644                           SUPPORTED_Asym_Pause),
 645        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 646        .driver_data    = &ksz8021_type,
 647        .probe          = kszphy_probe,
 648        .config_init    = kszphy_config_init,
 649        .config_aneg    = genphy_config_aneg,
 650        .read_status    = genphy_read_status,
 651        .ack_interrupt  = kszphy_ack_interrupt,
 652        .config_intr    = kszphy_config_intr,
 653        .suspend        = genphy_suspend,
 654        .resume         = genphy_resume,
 655        .driver         = { .owner = THIS_MODULE,},
 656}, {
 657        .phy_id         = PHY_ID_KSZ8031,
 658        .phy_id_mask    = 0x00ffffff,
 659        .name           = "Micrel KSZ8031",
 660        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause |
 661                           SUPPORTED_Asym_Pause),
 662        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 663        .driver_data    = &ksz8021_type,
 664        .probe          = kszphy_probe,
 665        .config_init    = kszphy_config_init,
 666        .config_aneg    = genphy_config_aneg,
 667        .read_status    = genphy_read_status,
 668        .ack_interrupt  = kszphy_ack_interrupt,
 669        .config_intr    = kszphy_config_intr,
 670        .suspend        = genphy_suspend,
 671        .resume         = genphy_resume,
 672        .driver         = { .owner = THIS_MODULE,},
 673}, {
 674        .phy_id         = PHY_ID_KSZ8041,
 675        .phy_id_mask    = 0x00fffff0,
 676        .name           = "Micrel KSZ8041",
 677        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 678                                | SUPPORTED_Asym_Pause),
 679        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 680        .driver_data    = &ksz8041_type,
 681        .probe          = kszphy_probe,
 682        .config_init    = kszphy_config_init,
 683        .config_aneg    = genphy_config_aneg,
 684        .read_status    = genphy_read_status,
 685        .ack_interrupt  = kszphy_ack_interrupt,
 686        .config_intr    = kszphy_config_intr,
 687        .suspend        = genphy_suspend,
 688        .resume         = genphy_resume,
 689        .driver         = { .owner = THIS_MODULE,},
 690}, {
 691        .phy_id         = PHY_ID_KSZ8041RNLI,
 692        .phy_id_mask    = 0x00fffff0,
 693        .name           = "Micrel KSZ8041RNLI",
 694        .features       = PHY_BASIC_FEATURES |
 695                          SUPPORTED_Pause | SUPPORTED_Asym_Pause,
 696        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 697        .driver_data    = &ksz8041_type,
 698        .probe          = kszphy_probe,
 699        .config_init    = kszphy_config_init,
 700        .config_aneg    = genphy_config_aneg,
 701        .read_status    = genphy_read_status,
 702        .ack_interrupt  = kszphy_ack_interrupt,
 703        .config_intr    = kszphy_config_intr,
 704        .suspend        = genphy_suspend,
 705        .resume         = genphy_resume,
 706        .driver         = { .owner = THIS_MODULE,},
 707}, {
 708        .phy_id         = PHY_ID_KSZ8051,
 709        .phy_id_mask    = 0x00fffff0,
 710        .name           = "Micrel KSZ8051",
 711        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 712                                | SUPPORTED_Asym_Pause),
 713        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 714        .driver_data    = &ksz8051_type,
 715        .probe          = kszphy_probe,
 716        .config_init    = kszphy_config_init,
 717        .config_aneg    = genphy_config_aneg,
 718        .read_status    = genphy_read_status,
 719        .ack_interrupt  = kszphy_ack_interrupt,
 720        .config_intr    = kszphy_config_intr,
 721        .suspend        = genphy_suspend,
 722        .resume         = genphy_resume,
 723        .driver         = { .owner = THIS_MODULE,},
 724}, {
 725        .phy_id         = PHY_ID_KSZ8001,
 726        .name           = "Micrel KSZ8001 or KS8721",
 727        .phy_id_mask    = 0x00ffffff,
 728        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
 729        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 730        .driver_data    = &ksz8041_type,
 731        .probe          = kszphy_probe,
 732        .config_init    = kszphy_config_init,
 733        .config_aneg    = genphy_config_aneg,
 734        .read_status    = genphy_read_status,
 735        .ack_interrupt  = kszphy_ack_interrupt,
 736        .config_intr    = kszphy_config_intr,
 737        .suspend        = genphy_suspend,
 738        .resume         = genphy_resume,
 739        .driver         = { .owner = THIS_MODULE,},
 740}, {
 741        .phy_id         = PHY_ID_KSZ8081,
 742        .name           = "Micrel KSZ8081 or KSZ8091",
 743        .phy_id_mask    = 0x00fffff0,
 744        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
 745        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 746        .driver_data    = &ksz8081_type,
 747        .probe          = kszphy_probe,
 748        .config_init    = kszphy_config_init,
 749        .config_aneg    = genphy_config_aneg,
 750        .read_status    = genphy_read_status,
 751        .ack_interrupt  = kszphy_ack_interrupt,
 752        .config_intr    = kszphy_config_intr,
 753        .suspend        = genphy_suspend,
 754        .resume         = genphy_resume,
 755        .driver         = { .owner = THIS_MODULE,},
 756}, {
 757        .phy_id         = PHY_ID_KSZ8061,
 758        .name           = "Micrel KSZ8061",
 759        .phy_id_mask    = 0x00fffff0,
 760        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
 761        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 762        .config_init    = kszphy_config_init,
 763        .config_aneg    = genphy_config_aneg,
 764        .read_status    = genphy_read_status,
 765        .ack_interrupt  = kszphy_ack_interrupt,
 766        .config_intr    = kszphy_config_intr,
 767        .suspend        = genphy_suspend,
 768        .resume         = genphy_resume,
 769        .driver         = { .owner = THIS_MODULE,},
 770}, {
 771        .phy_id         = PHY_ID_KSZ9021,
 772        .phy_id_mask    = 0x000ffffe,
 773        .name           = "Micrel KSZ9021 Gigabit PHY",
 774        .features       = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
 775        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 776        .driver_data    = &ksz9021_type,
 777        .config_init    = ksz9021_config_init,
 778        .config_aneg    = genphy_config_aneg,
 779        .read_status    = genphy_read_status,
 780        .ack_interrupt  = kszphy_ack_interrupt,
 781        .config_intr    = kszphy_config_intr,
 782        .suspend        = genphy_suspend,
 783        .resume         = genphy_resume,
 784        .read_mmd_indirect = ksz9021_rd_mmd_phyreg,
 785        .write_mmd_indirect = ksz9021_wr_mmd_phyreg,
 786        .driver         = { .owner = THIS_MODULE, },
 787}, {
 788        .phy_id         = PHY_ID_KSZ9031,
 789        .phy_id_mask    = 0x00fffff0,
 790        .name           = "Micrel KSZ9031 Gigabit PHY",
 791        .features       = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
 792        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 793        .driver_data    = &ksz9021_type,
 794        .config_init    = ksz9031_config_init,
 795        .config_aneg    = genphy_config_aneg,
 796        .read_status    = ksz9031_read_status,
 797        .ack_interrupt  = kszphy_ack_interrupt,
 798        .config_intr    = kszphy_config_intr,
 799        .suspend        = genphy_suspend,
 800        .resume         = genphy_resume,
 801        .driver         = { .owner = THIS_MODULE, },
 802}, {
 803        .phy_id         = PHY_ID_KSZ8873MLL,
 804        .phy_id_mask    = 0x00fffff0,
 805        .name           = "Micrel KSZ8873MLL Switch",
 806        .features       = (SUPPORTED_Pause | SUPPORTED_Asym_Pause),
 807        .flags          = PHY_HAS_MAGICANEG,
 808        .config_init    = kszphy_config_init,
 809        .config_aneg    = ksz8873mll_config_aneg,
 810        .read_status    = ksz8873mll_read_status,
 811        .suspend        = genphy_suspend,
 812        .resume         = genphy_resume,
 813        .driver         = { .owner = THIS_MODULE, },
 814}, {
 815        .phy_id         = PHY_ID_KSZ886X,
 816        .phy_id_mask    = 0x00fffff0,
 817        .name           = "Micrel KSZ886X Switch",
 818        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
 819        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 820        .config_init    = kszphy_config_init,
 821        .config_aneg    = genphy_config_aneg,
 822        .read_status    = genphy_read_status,
 823        .suspend        = genphy_suspend,
 824        .resume         = genphy_resume,
 825        .driver         = { .owner = THIS_MODULE, },
 826} };
 827
 828module_phy_driver(ksphy_driver);
 829
 830MODULE_DESCRIPTION("Micrel PHY driver");
 831MODULE_AUTHOR("David J. Choi");
 832MODULE_LICENSE("GPL");
 833
 834static struct mdio_device_id __maybe_unused micrel_tbl[] = {
 835        { PHY_ID_KSZ9021, 0x000ffffe },
 836        { PHY_ID_KSZ9031, 0x00fffff0 },
 837        { PHY_ID_KSZ8001, 0x00ffffff },
 838        { PHY_ID_KS8737, 0x00fffff0 },
 839        { PHY_ID_KSZ8021, 0x00ffffff },
 840        { PHY_ID_KSZ8031, 0x00ffffff },
 841        { PHY_ID_KSZ8041, 0x00fffff0 },
 842        { PHY_ID_KSZ8051, 0x00fffff0 },
 843        { PHY_ID_KSZ8061, 0x00fffff0 },
 844        { PHY_ID_KSZ8081, 0x00fffff0 },
 845        { PHY_ID_KSZ8873MLL, 0x00fffff0 },
 846        { PHY_ID_KSZ886X, 0x00fffff0 },
 847        { }
 848};
 849
 850MODULE_DEVICE_TABLE(mdio, micrel_tbl);
 851