drivers/net/phy/marvell.c

   1 /*
   2  * drivers/net/phy/marvell.c
   3  *
   4  * Driver for Marvell PHYs
   5  *
   6  * Author: Andy Fleming
   7  *
   8  * Copyright (c) 2004 Freescale Semiconductor, Inc.
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  *
  15  */
  16 #include <linux/kernel.h>
  17 #include <linux/string.h>
  18 #include <linux/errno.h>
  19 #include <linux/unistd.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/init.h>
  22 #include <linux/delay.h>
  23 #include <linux/netdevice.h>
  24 #include <linux/etherdevice.h>
  25 #include <linux/skbuff.h>
  26 #include <linux/spinlock.h>
  27 #include <linux/mm.h>
  28 #include <linux/module.h>
  29 #include <linux/mii.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/phy.h>
  32 #include <linux/marvell_phy.h>
  33 #include <linux/of.h>
  34
  35 #include <asm/io.h>
  36 #include <asm/irq.h>
  37 #include <asm/uaccess.h>
  38
  39 #define MII_MARVELL_PHY_PAGE            22
  40
  41 #define MII_M1011_IEVENT                0x13
  42 #define MII_M1011_IEVENT_CLEAR          0x0000
  43
  44 #define MII_M1011_IMASK                 0x12
  45 #define MII_M1011_IMASK_INIT            0x6400
  46 #define MII_M1011_IMASK_CLEAR           0x0000
  47
  48 #define MII_M1011_PHY_SCR               0x10
  49 #define MII_M1011_PHY_SCR_AUTO_CROSS    0x0060
  50
  51 #define MII_M1145_PHY_EXT_CR            0x14
  52 #define MII_M1145_RGMII_RX_DELAY        0x0080
  53 #define MII_M1145_RGMII_TX_DELAY        0x0002
  54
  55 #define MII_M1111_PHY_LED_CONTROL       0x18
  56 #define MII_M1111_PHY_LED_DIRECT        0x4100
  57 #define MII_M1111_PHY_LED_COMBINE       0x411c
  58 #define MII_M1111_PHY_EXT_CR            0x14
  59 #define MII_M1111_RX_DELAY              0x80
  60 #define MII_M1111_TX_DELAY              0x2
  61 #define MII_M1111_PHY_EXT_SR            0x1b
  62
  63 #define MII_M1111_HWCFG_MODE_MASK               0xf
  64 #define MII_M1111_HWCFG_MODE_COPPER_RGMII       0xb
  65 #define MII_M1111_HWCFG_MODE_FIBER_RGMII        0x3
  66 #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK       0x4
  67 #define MII_M1111_HWCFG_MODE_COPPER_RTBI        0x9
  68 #define MII_M1111_HWCFG_FIBER_COPPER_AUTO       0x8000
  69 #define MII_M1111_HWCFG_FIBER_COPPER_RES        0x2000
  70
  71 #define MII_M1111_COPPER                0
  72 #define MII_M1111_FIBER                 1
  73
  74 #define MII_88E1121_PHY_MSCR_PAGE       2
  75 #define MII_88E1121_PHY_MSCR_REG        21
  76 #define MII_88E1121_PHY_MSCR_RX_DELAY   BIT(5)
  77 #define MII_88E1121_PHY_MSCR_TX_DELAY   BIT(4)
  78 #define MII_88E1121_PHY_MSCR_DELAY_MASK (~(0x3 << 4))
  79
  80 #define MII_88E1318S_PHY_MSCR1_REG      16
  81 #define MII_88E1318S_PHY_MSCR1_PAD_ODD  BIT(6)
  82
  83 #define MII_88E1121_PHY_LED_CTRL        16
  84 #define MII_88E1121_PHY_LED_PAGE        3
  85 #define MII_88E1121_PHY_LED_DEF         0x0030
  86
  87 #define MII_M1011_PHY_STATUS            0x11
  88 #define MII_M1011_PHY_STATUS_1000       0x8000
  89 #define MII_M1011_PHY_STATUS_100        0x4000
  90 #define MII_M1011_PHY_STATUS_SPD_MASK   0xc000
  91 #define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
  92 #define MII_M1011_PHY_STATUS_RESOLVED   0x0800
  93 #define MII_M1011_PHY_STATUS_LINK       0x0400
  94
  95
  96 MODULE_DESCRIPTION("Marvell PHY driver");
  97 MODULE_AUTHOR("Andy Fleming");
  98 MODULE_LICENSE("GPL");
  99
 100 static int marvell_ack_interrupt(struct phy_device *phydev)
 101 {
 102         int err;
 103
 104         /* Clear the interrupts by reading the reg */
 105         err = phy_read(phydev, MII_M1011_IEVENT);
 106
 107         if (err < 0)
 108                 return err;
 109
 110         return 0;
 111 }
 112
 113 static int marvell_config_intr(struct phy_device *phydev)
 114 {
 115         int err;
 116
 117         if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 118                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
 119         else
 120                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
 121
 122         return err;
 123 }
 124
 125 static int marvell_config_aneg(struct phy_device *phydev)
 126 {
 127         int err;
 128
 129         /* The Marvell PHY has an errata which requires
 130          * that certain registers get written in order
 131          * to restart autonegotiation */
 132         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 133
 134         if (err < 0)
 135                 return err;
 136
 137         err = phy_write(phydev, 0x1d, 0x1f);
 138         if (err < 0)
 139                 return err;
 140
 141         err = phy_write(phydev, 0x1e, 0x200c);
 142         if (err < 0)
 143                 return err;
 144
 145         err = phy_write(phydev, 0x1d, 0x5);
 146         if (err < 0)
 147                 return err;
 148
 149         err = phy_write(phydev, 0x1e, 0);
 150         if (err < 0)
 151                 return err;
 152
 153         err = phy_write(phydev, 0x1e, 0x100);
 154         if (err < 0)
 155                 return err;
 156
 157         err = phy_write(phydev, MII_M1011_PHY_SCR,
 158                         MII_M1011_PHY_SCR_AUTO_CROSS);
 159         if (err < 0)
 160                 return err;
 161
 162         err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
 163                         MII_M1111_PHY_LED_DIRECT);
 164         if (err < 0)
 165                 return err;
 166
 167         err = genphy_config_aneg(phydev);
 168         if (err < 0)
 169                 return err;
 170
 171         if (phydev->autoneg != AUTONEG_ENABLE) {
 172                 int bmcr;
 173
 174                 /*
 175                  * A write to speed/duplex bits (that is performed by
 176                  * genphy_config_aneg() call above) must be followed by
 177                  * a software reset. Otherwise, the write has no effect.
 178                  */
 179                 bmcr = phy_read(phydev, MII_BMCR);
 180                 if (bmcr < 0)
 181                         return bmcr;
 182
 183                 err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
 184                 if (err < 0)
 185                         return err;
 186         }
 187
 188         return 0;
 189 }
 190
 191 #ifdef CONFIG_OF_MDIO
 192 /*
 193  * Set and/or override some configuration registers based on the
 194  * marvell,reg-init property stored in the of_node for the phydev.
 195  *
 196  * marvell,reg-init = <reg-page reg mask value>,...;
 197  *
 198  * There may be one or more sets of <reg-page reg mask value>:
 199  *
 200  * reg-page: which register bank to use.
 201  * reg: the register.
 202  * mask: if non-zero, ANDed with existing register value.
 203  * value: ORed with the masked value and written to the regiser.
 204  *
 205  */
 206 static int marvell_of_reg_init(struct phy_device *phydev)
 207 {
 208         const __be32 *paddr;
 209         int len, i, saved_page, current_page, page_changed, ret;
 210
 211         if (!phydev->dev.of_node)
 212                 return 0;
 213
 214         paddr = of_get_property(phydev->dev.of_node, "marvell,reg-init", &len);
 215         if (!paddr || len < (4 * sizeof(*paddr)))
 216                 return 0;
 217
 218         saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 219         if (saved_page < 0)
 220                 return saved_page;
 221         page_changed = 0;
 222         current_page = saved_page;
 223
 224         ret = 0;
 225         len /= sizeof(*paddr);
 226         for (i = 0; i < len - 3; i += 4) {
 227                 u16 reg_page = be32_to_cpup(paddr + i);
 228                 u16 reg = be32_to_cpup(paddr + i + 1);
 229                 u16 mask = be32_to_cpup(paddr + i + 2);
 230                 u16 val_bits = be32_to_cpup(paddr + i + 3);
 231                 int val;
 232
 233                 if (reg_page != current_page) {
 234                         current_page = reg_page;
 235                         page_changed = 1;
 236                         ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
 237                         if (ret < 0)
 238                                 goto err;
 239                 }
 240
 241                 val = 0;
 242                 if (mask) {
 243                         val = phy_read(phydev, reg);
 244                         if (val < 0) {
 245                                 ret = val;
 246                                 goto err;
 247                         }
 248                         val &= mask;
 249                 }
 250                 val |= val_bits;
 251
 252                 ret = phy_write(phydev, reg, val);
 253                 if (ret < 0)
 254                         goto err;
 255
 256         }
 257 err:
 258         if (page_changed) {
 259                 i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
 260                 if (ret == 0)
 261                         ret = i;
 262         }
 263         return ret;
 264 }
 265 #else
 266 static int marvell_of_reg_init(struct phy_device *phydev)
 267 {
 268         return 0;
 269 }
 270 #endif /* CONFIG_OF_MDIO */
 271
 272 static int m88e1121_config_aneg(struct phy_device *phydev)
 273 {
 274         int err, oldpage, mscr;
 275
 276         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 277
 278         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 279                         MII_88E1121_PHY_MSCR_PAGE);
 280         if (err < 0)
 281                 return err;
 282
 283         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
 284             (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
 285             (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
 286             (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 287
 288                 mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
 289                         MII_88E1121_PHY_MSCR_DELAY_MASK;
 290
 291                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
 292                         mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
 293                                  MII_88E1121_PHY_MSCR_TX_DELAY);
 294                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
 295                         mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
 296                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
 297                         mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
 298
 299                 err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
 300                 if (err < 0)
 301                         return err;
 302         }
 303
 304         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 305
 306         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 307         if (err < 0)
 308                 return err;
 309
 310         err = phy_write(phydev, MII_M1011_PHY_SCR,
 311                         MII_M1011_PHY_SCR_AUTO_CROSS);
 312         if (err < 0)
 313                 return err;
 314
 315         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 316
 317         phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_88E1121_PHY_LED_PAGE);
 318         phy_write(phydev, MII_88E1121_PHY_LED_CTRL, MII_88E1121_PHY_LED_DEF);
 319         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 320
 321         err = genphy_config_aneg(phydev);
 322
 323         return err;
 324 }
 325
 326 static int m88e1318_config_aneg(struct phy_device *phydev)
 327 {
 328         int err, oldpage, mscr;
 329
 330         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 331
 332         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 333                         MII_88E1121_PHY_MSCR_PAGE);
 334         if (err < 0)
 335                 return err;
 336
 337         mscr = phy_read(phydev, MII_88E1318S_PHY_MSCR1_REG);
 338         mscr |= MII_88E1318S_PHY_MSCR1_PAD_ODD;
 339
 340         err = phy_write(phydev, MII_88E1318S_PHY_MSCR1_REG, mscr);
 341         if (err < 0)
 342                 return err;
 343
 344         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 345         if (err < 0)
 346                 return err;
 347
 348         return m88e1121_config_aneg(phydev);
 349 }
 350
 351 static int m88e1111_config_init(struct phy_device *phydev)
 352 {
 353         int err;
 354         int temp;
 355
 356         /* Enable Fiber/Copper auto selection */
 357         temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 358         temp &= ~MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 359         phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 360
 361         temp = phy_read(phydev, MII_BMCR);
 362         temp |= BMCR_RESET;
 363         phy_write(phydev, MII_BMCR, temp);
 364
 365         if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
 366             (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
 367             (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
 368             (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 369
 370                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 371                 if (temp < 0)
 372                         return temp;
 373
 374                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 375                         temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 376                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 377                         temp &= ~MII_M1111_TX_DELAY;
 378                         temp |= MII_M1111_RX_DELAY;
 379                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 380                         temp &= ~MII_M1111_RX_DELAY;
 381                         temp |= MII_M1111_TX_DELAY;
 382                 }
 383
 384                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 385                 if (err < 0)
 386                         return err;
 387
 388                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 389                 if (temp < 0)
 390                         return temp;
 391
 392                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 393
 394                 if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
 395                         temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
 396                 else
 397                         temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
 398
 399                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 400                 if (err < 0)
 401                         return err;
 402         }
 403
 404         if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
 405                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 406                 if (temp < 0)
 407                         return temp;
 408
 409                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 410                 temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
 411                 temp |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 412
 413                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 414                 if (err < 0)
 415                         return err;
 416         }
 417
 418         if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
 419                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 420                 if (temp < 0)
 421                         return temp;
 422                 temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 423                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 424                 if (err < 0)
 425                         return err;
 426
 427                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 428                 if (temp < 0)
 429                         return temp;
 430                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 431                 temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 432                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 433                 if (err < 0)
 434                         return err;
 435
 436                 /* soft reset */
 437                 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 438                 if (err < 0)
 439                         return err;
 440                 do
 441                         temp = phy_read(phydev, MII_BMCR);
 442                 while (temp & BMCR_RESET);
 443
 444                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 445                 if (temp < 0)
 446                         return temp;
 447                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 448                 temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 449                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 450                 if (err < 0)
 451                         return err;
 452         }
 453
 454         err = marvell_of_reg_init(phydev);
 455         if (err < 0)
 456                 return err;
 457
 458         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 459         if (err < 0)
 460                 return err;
 461
 462         return 0;
 463 }
 464
 465 static int m88e1118_config_aneg(struct phy_device *phydev)
 466 {
 467         int err;
 468
 469         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 470         if (err < 0)
 471                 return err;
 472
 473         err = phy_write(phydev, MII_M1011_PHY_SCR,
 474                         MII_M1011_PHY_SCR_AUTO_CROSS);
 475         if (err < 0)
 476                 return err;
 477
 478         err = genphy_config_aneg(phydev);
 479         return 0;
 480 }
 481
 482 static int m88e1118_config_init(struct phy_device *phydev)
 483 {
 484         int err;
 485
 486         /* Change address */
 487         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 488         if (err < 0)
 489                 return err;
 490
 491         /* Enable 1000 Mbit */
 492         err = phy_write(phydev, 0x15, 0x1070);
 493         if (err < 0)
 494                 return err;
 495
 496         /* Change address */
 497         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0003);
 498         if (err < 0)
 499                 return err;
 500
 501         /* Adjust LED Control */
 502         if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
 503                 err = phy_write(phydev, 0x10, 0x1100);
 504         else
 505                 err = phy_write(phydev, 0x10, 0x021e);
 506         if (err < 0)
 507                 return err;
 508
 509         err = marvell_of_reg_init(phydev);
 510         if (err < 0)
 511                 return err;
 512
 513         /* Reset address */
 514         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 515         if (err < 0)
 516                 return err;
 517
 518         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 519         if (err < 0)
 520                 return err;
 521
 522         return 0;
 523 }
 524
 525 static int m88e1149_config_init(struct phy_device *phydev)
 526 {
 527         int err;
 528
 529         /* Change address */
 530         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 531         if (err < 0)
 532                 return err;
 533
 534         /* Enable 1000 Mbit */
 535         err = phy_write(phydev, 0x15, 0x1048);
 536         if (err < 0)
 537                 return err;
 538
 539         err = marvell_of_reg_init(phydev);
 540         if (err < 0)
 541                 return err;
 542
 543         /* Reset address */
 544         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 545         if (err < 0)
 546                 return err;
 547
 548         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 549         if (err < 0)
 550                 return err;
 551
 552         return 0;
 553 }
 554
 555 static int m88e1145_config_init(struct phy_device *phydev)
 556 {
 557         int err;
 558
 559         /* Take care of errata E0 & E1 */
 560         err = phy_write(phydev, 0x1d, 0x001b);
 561         if (err < 0)
 562                 return err;
 563
 564         err = phy_write(phydev, 0x1e, 0x418f);
 565         if (err < 0)
 566                 return err;
 567
 568         err = phy_write(phydev, 0x1d, 0x0016);
 569         if (err < 0)
 570                 return err;
 571
 572         err = phy_write(phydev, 0x1e, 0xa2da);
 573         if (err < 0)
 574                 return err;
 575
 576         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 577                 int temp = phy_read(phydev, MII_M1145_PHY_EXT_CR);
 578                 if (temp < 0)
 579                         return temp;
 580
 581                 temp |= (MII_M1145_RGMII_RX_DELAY | MII_M1145_RGMII_TX_DELAY);
 582
 583                 err = phy_write(phydev, MII_M1145_PHY_EXT_CR, temp);
 584                 if (err < 0)
 585                         return err;
 586
 587                 if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
 588                         err = phy_write(phydev, 0x1d, 0x0012);
 589                         if (err < 0)
 590                                 return err;
 591
 592                         temp = phy_read(phydev, 0x1e);
 593                         if (temp < 0)
 594                                 return temp;
 595
 596                         temp &= 0xf03f;
 597                         temp |= 2 << 9; /* 36 ohm */
 598                         temp |= 2 << 6; /* 39 ohm */
 599
 600                         err = phy_write(phydev, 0x1e, temp);
 601                         if (err < 0)
 602                                 return err;
 603
 604                         err = phy_write(phydev, 0x1d, 0x3);
 605                         if (err < 0)
 606                                 return err;
 607
 608                         err = phy_write(phydev, 0x1e, 0x8000);
 609                         if (err < 0)
 610                                 return err;
 611                 }
 612         }
 613
 614         err = marvell_of_reg_init(phydev);
 615         if (err < 0)
 616                 return err;
 617
 618         return 0;
 619 }
 620
 621 /* marvell_read_status
 622  *
 623  * Generic status code does not detect Fiber correctly!
 624  * Description:
 625  *   Check the link, then figure out the current state
 626  *   by comparing what we advertise with what the link partner
 627  *   advertises.  Start by checking the gigabit possibilities,
 628  *   then move on to 10/100.
 629  */
 630 static int marvell_read_status(struct phy_device *phydev)
 631 {
 632         int adv;
 633         int err;
 634         int lpa;
 635         int status = 0;
 636
 637         /* Update the link, but return if there
 638          * was an error */
 639         err = genphy_update_link(phydev);
 640         if (err)
 641                 return err;
 642
 643         if (AUTONEG_ENABLE == phydev->autoneg) {
 644                 status = phy_read(phydev, MII_M1011_PHY_STATUS);
 645                 if (status < 0)
 646                         return status;
 647
 648                 lpa = phy_read(phydev, MII_LPA);
 649                 if (lpa < 0)
 650                         return lpa;
 651
 652                 adv = phy_read(phydev, MII_ADVERTISE);
 653                 if (adv < 0)
 654                         return adv;
 655
 656                 lpa &= adv;
 657
 658                 if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
 659                         phydev->duplex = DUPLEX_FULL;
 660                 else
 661                         phydev->duplex = DUPLEX_HALF;
 662
 663                 status = status & MII_M1011_PHY_STATUS_SPD_MASK;
 664                 phydev->pause = phydev->asym_pause = 0;
 665
 666                 switch (status) {
 667                 case MII_M1011_PHY_STATUS_1000:
 668                         phydev->speed = SPEED_1000;
 669                         break;
 670
 671                 case MII_M1011_PHY_STATUS_100:
 672                         phydev->speed = SPEED_100;
 673                         break;
 674
 675                 default:
 676                         phydev->speed = SPEED_10;
 677                         break;
 678                 }
 679
 680                 if (phydev->duplex == DUPLEX_FULL) {
 681                         phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
 682                         phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
 683                 }
 684         } else {
 685                 int bmcr = phy_read(phydev, MII_BMCR);
 686
 687                 if (bmcr < 0)
 688                         return bmcr;
 689
 690                 if (bmcr & BMCR_FULLDPLX)
 691                         phydev->duplex = DUPLEX_FULL;
 692                 else
 693                         phydev->duplex = DUPLEX_HALF;
 694
 695                 if (bmcr & BMCR_SPEED1000)
 696                         phydev->speed = SPEED_1000;
 697                 else if (bmcr & BMCR_SPEED100)
 698                         phydev->speed = SPEED_100;
 699                 else
 700                         phydev->speed = SPEED_10;
 701
 702                 phydev->pause = phydev->asym_pause = 0;
 703         }
 704
 705         return 0;
 706 }
 707
 708 static int m88e1121_did_interrupt(struct phy_device *phydev)
 709 {
 710         int imask;
 711
 712         imask = phy_read(phydev, MII_M1011_IEVENT);
 713
 714         if (imask & MII_M1011_IMASK_INIT)
 715                 return 1;
 716
 717         return 0;
 718 }
 719
 720 static struct phy_driver marvell_drivers[] = {
 721         {
 722                 .phy_id = MARVELL_PHY_ID_88E1101,
 723                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 724                 .name = "Marvell 88E1101",
 725                 .features = PHY_GBIT_FEATURES,
 726                 .flags = PHY_HAS_INTERRUPT,
 727                 .config_aneg = &marvell_config_aneg,
 728                 .read_status = &genphy_read_status,
 729                 .ack_interrupt = &marvell_ack_interrupt,
 730                 .config_intr = &marvell_config_intr,
 731                 .driver = { .owner = THIS_MODULE },
 732         },
 733         {
 734                 .phy_id = MARVELL_PHY_ID_88E1112,
 735                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 736                 .name = "Marvell 88E1112",
 737                 .features = PHY_GBIT_FEATURES,
 738                 .flags = PHY_HAS_INTERRUPT,
 739                 .config_init = &m88e1111_config_init,
 740                 .config_aneg = &marvell_config_aneg,
 741                 .read_status = &genphy_read_status,
 742                 .ack_interrupt = &marvell_ack_interrupt,
 743                 .config_intr = &marvell_config_intr,
 744                 .driver = { .owner = THIS_MODULE },
 745         },
 746         {
 747                 .phy_id = MARVELL_PHY_ID_88E1111,
 748                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 749                 .name = "Marvell 88E1111",
 750                 .features = PHY_GBIT_FEATURES,
 751                 .flags = PHY_HAS_INTERRUPT,
 752                 .config_init = &m88e1111_config_init,
 753                 .config_aneg = &marvell_config_aneg,
 754                 .read_status = &marvell_read_status,
 755                 .ack_interrupt = &marvell_ack_interrupt,
 756                 .config_intr = &marvell_config_intr,
 757                 .driver = { .owner = THIS_MODULE },
 758         },
 759         {
 760                 .phy_id = MARVELL_PHY_ID_88E1118,
 761                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 762                 .name = "Marvell 88E1118",
 763                 .features = PHY_GBIT_FEATURES,
 764                 .flags = PHY_HAS_INTERRUPT,
 765                 .config_init = &m88e1118_config_init,
 766                 .config_aneg = &m88e1118_config_aneg,
 767                 .read_status = &genphy_read_status,
 768                 .ack_interrupt = &marvell_ack_interrupt,
 769                 .config_intr = &marvell_config_intr,
 770                 .driver = {.owner = THIS_MODULE,},
 771         },
 772         {
 773                 .phy_id = MARVELL_PHY_ID_88E1121R,
 774                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 775                 .name = "Marvell 88E1121R",
 776                 .features = PHY_GBIT_FEATURES,
 777                 .flags = PHY_HAS_INTERRUPT,
 778                 .config_aneg = &m88e1121_config_aneg,
 779                 .read_status = &marvell_read_status,
 780                 .ack_interrupt = &marvell_ack_interrupt,
 781                 .config_intr = &marvell_config_intr,
 782                 .did_interrupt = &m88e1121_did_interrupt,
 783                 .driver = { .owner = THIS_MODULE },
 784         },
 785         {
 786                 .phy_id = MARVELL_PHY_ID_88E1318S,
 787                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 788                 .name = "Marvell 88E1318S",
 789                 .features = PHY_GBIT_FEATURES,
 790                 .flags = PHY_HAS_INTERRUPT,
 791                 .config_aneg = &m88e1318_config_aneg,
 792                 .read_status = &marvell_read_status,
 793                 .ack_interrupt = &marvell_ack_interrupt,
 794                 .config_intr = &marvell_config_intr,
 795                 .did_interrupt = &m88e1121_did_interrupt,
 796                 .driver = { .owner = THIS_MODULE },
 797         },
 798         {
 799                 .phy_id = MARVELL_PHY_ID_88E1145,
 800                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 801                 .name = "Marvell 88E1145",
 802                 .features = PHY_GBIT_FEATURES,
 803                 .flags = PHY_HAS_INTERRUPT,
 804                 .config_init = &m88e1145_config_init,
 805                 .config_aneg = &marvell_config_aneg,
 806                 .read_status = &genphy_read_status,
 807                 .ack_interrupt = &marvell_ack_interrupt,
 808                 .config_intr = &marvell_config_intr,
 809                 .driver = { .owner = THIS_MODULE },
 810         },
 811         {
 812                 .phy_id = MARVELL_PHY_ID_88E1149R,
 813                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 814                 .name = "Marvell 88E1149R",
 815                 .features = PHY_GBIT_FEATURES,
 816                 .flags = PHY_HAS_INTERRUPT,
 817                 .config_init = &m88e1149_config_init,
 818                 .config_aneg = &m88e1118_config_aneg,
 819                 .read_status = &genphy_read_status,
 820                 .ack_interrupt = &marvell_ack_interrupt,
 821                 .config_intr = &marvell_config_intr,
 822                 .driver = { .owner = THIS_MODULE },
 823         },
 824         {
 825                 .phy_id = MARVELL_PHY_ID_88E1240,
 826                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 827                 .name = "Marvell 88E1240",
 828                 .features = PHY_GBIT_FEATURES,
 829                 .flags = PHY_HAS_INTERRUPT,
 830                 .config_init = &m88e1111_config_init,
 831                 .config_aneg = &marvell_config_aneg,
 832                 .read_status = &genphy_read_status,
 833                 .ack_interrupt = &marvell_ack_interrupt,
 834                 .config_intr = &marvell_config_intr,
 835                 .driver = { .owner = THIS_MODULE },
 836         },
 837 };
 838
 839 static int __init marvell_init(void)
 840 {
 841         int ret;
 842         int i;
 843
 844         for (i = 0; i < ARRAY_SIZE(marvell_drivers); i++) {
 845                 ret = phy_driver_register(&marvell_drivers[i]);
 846
 847                 if (ret) {
 848                         while (i-- > 0)
 849                                 phy_driver_unregister(&marvell_drivers[i]);
 850                         return ret;
 851                 }
 852         }
 853
 854         return 0;
 855 }
 856
 857 static void __exit marvell_exit(void)
 858 {
 859         int i;
 860
 861         for (i = 0; i < ARRAY_SIZE(marvell_drivers); i++)
 862                 phy_driver_unregister(&marvell_drivers[i]);
 863 }
 864
 865 module_init(marvell_init);
 866 module_exit(marvell_exit);
 867
 868 static struct mdio_device_id __maybe_unused marvell_tbl[] = {
 869         { 0x01410c60, 0xfffffff0 },
 870         { 0x01410c90, 0xfffffff0 },
 871         { 0x01410cc0, 0xfffffff0 },
 872         { 0x01410e10, 0xfffffff0 },
 873         { 0x01410cb0, 0xfffffff0 },
 874         { 0x01410cd0, 0xfffffff0 },
 875         { 0x01410e50, 0xfffffff0 },
 876         { 0x01410e30, 0xfffffff0 },
 877         { 0x01410e90, 0xfffffff0 },
 878         { }
 879 };
 880
 881 MODULE_DEVICE_TABLE(mdio, marvell_tbl);