drivers/net/phy/marvell.c

   1 /*
   2  * drivers/net/phy/marvell.c
   3  *
   4  * Driver for Marvell PHYs
   5  *
   6  * Author: Andy Fleming
   7  *
   8  * Copyright (c) 2004 Freescale Semiconductor, Inc.
   9  *
  10  * Copyright (c) 2013 Michael Stapelberg <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_SR            0x1b
  54 #define MII_M1145_PHY_EXT_CR            0x14
  55 #define MII_M1145_RGMII_RX_DELAY        0x0080
  56 #define MII_M1145_RGMII_TX_DELAY        0x0002
  57 #define MII_M1145_HWCFG_MODE_SGMII_NO_CLK       0x4
  58 #define MII_M1145_HWCFG_MODE_MASK               0xf
  59 #define MII_M1145_HWCFG_FIBER_COPPER_AUTO       0x8000
  60
  61 #define MII_M1145_HWCFG_MODE_SGMII_NO_CLK       0x4
  62 #define MII_M1145_HWCFG_MODE_MASK               0xf
  63 #define MII_M1145_HWCFG_FIBER_COPPER_AUTO       0x8000
  64
  65 #define MII_M1111_PHY_LED_CONTROL       0x18
  66 #define MII_M1111_PHY_LED_DIRECT        0x4100
  67 #define MII_M1111_PHY_LED_COMBINE       0x411c
  68 #define MII_M1111_PHY_EXT_CR            0x14
  69 #define MII_M1111_RX_DELAY              0x80
  70 #define MII_M1111_TX_DELAY              0x2
  71 #define MII_M1111_PHY_EXT_SR            0x1b
  72
  73 #define MII_M1111_HWCFG_MODE_MASK               0xf
  74 #define MII_M1111_HWCFG_MODE_COPPER_RGMII       0xb
  75 #define MII_M1111_HWCFG_MODE_FIBER_RGMII        0x3
  76 #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK       0x4
  77 #define MII_M1111_HWCFG_MODE_COPPER_RTBI        0x9
  78 #define MII_M1111_HWCFG_FIBER_COPPER_AUTO       0x8000
  79 #define MII_M1111_HWCFG_FIBER_COPPER_RES        0x2000
  80
  81 #define MII_M1111_COPPER                0
  82 #define MII_M1111_FIBER                 1
  83
  84 #define MII_88E1121_PHY_MSCR_PAGE       2
  85 #define MII_88E1121_PHY_MSCR_REG        21
  86 #define MII_88E1121_PHY_MSCR_RX_DELAY   BIT(5)
  87 #define MII_88E1121_PHY_MSCR_TX_DELAY   BIT(4)
  88 #define MII_88E1121_PHY_MSCR_DELAY_MASK (~(0x3 << 4))
  89
  90 #define MII_88E1318S_PHY_MSCR1_REG      16
  91 #define MII_88E1318S_PHY_MSCR1_PAD_ODD  BIT(6)
  92
  93 /* Copper Specific Interrupt Enable Register */
  94 #define MII_88E1318S_PHY_CSIER                              0x12
  95 /* WOL Event Interrupt Enable */
  96 #define MII_88E1318S_PHY_CSIER_WOL_EIE                      BIT(7)
  97
  98 /* LED Timer Control Register */
  99 #define MII_88E1318S_PHY_LED_PAGE                           0x03
 100 #define MII_88E1318S_PHY_LED_TCR                            0x12
 101 #define MII_88E1318S_PHY_LED_TCR_FORCE_INT                  BIT(15)
 102 #define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE                BIT(7)
 103 #define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW             BIT(11)
 104
 105 /* Magic Packet MAC address registers */
 106 #define MII_88E1318S_PHY_MAGIC_PACKET_WORD2                 0x17
 107 #define MII_88E1318S_PHY_MAGIC_PACKET_WORD1                 0x18
 108 #define MII_88E1318S_PHY_MAGIC_PACKET_WORD0                 0x19
 109
 110 #define MII_88E1318S_PHY_WOL_PAGE                           0x11
 111 #define MII_88E1318S_PHY_WOL_CTRL                           0x10
 112 #define MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS          BIT(12)
 113 #define MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE BIT(14)
 114
 115 #define MII_88E1121_PHY_LED_CTRL        16
 116 #define MII_88E1121_PHY_LED_PAGE        3
 117 #define MII_88E1121_PHY_LED_DEF         0x0030
 118
 119 #define MII_M1011_PHY_STATUS            0x11
 120 #define MII_M1011_PHY_STATUS_1000       0x8000
 121 #define MII_M1011_PHY_STATUS_100        0x4000
 122 #define MII_M1011_PHY_STATUS_SPD_MASK   0xc000
 123 #define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
 124 #define MII_M1011_PHY_STATUS_RESOLVED   0x0800
 125 #define MII_M1011_PHY_STATUS_LINK       0x0400
 126
 127 #define MII_M1116R_CONTROL_REG_MAC      21
 128
 129 #define MII_88E3016_PHY_SPEC_CTRL       0x10
 130 #define MII_88E3016_DISABLE_SCRAMBLER   0x0200
 131 #define MII_88E3016_AUTO_MDIX_CROSSOVER 0x0030
 132
 133 MODULE_DESCRIPTION("Marvell PHY driver");
 134 MODULE_AUTHOR("Andy Fleming");
 135 MODULE_LICENSE("GPL");
 136
 137 static int marvell_ack_interrupt(struct phy_device *phydev)
 138 {
 139         int err;
 140
 141         /* Clear the interrupts by reading the reg */
 142         err = phy_read(phydev, MII_M1011_IEVENT);
 143
 144         if (err < 0)
 145                 return err;
 146
 147         return 0;
 148 }
 149
 150 static int marvell_config_intr(struct phy_device *phydev)
 151 {
 152         int err;
 153
 154         if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 155                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
 156         else
 157                 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
 158
 159         return err;
 160 }
 161
 162 static int marvell_config_aneg(struct phy_device *phydev)
 163 {
 164         int err;
 165
 166         /* The Marvell PHY has an errata which requires
 167          * that certain registers get written in order
 168          * to restart autonegotiation */
 169         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 170
 171         if (err < 0)
 172                 return err;
 173
 174         err = phy_write(phydev, 0x1d, 0x1f);
 175         if (err < 0)
 176                 return err;
 177
 178         err = phy_write(phydev, 0x1e, 0x200c);
 179         if (err < 0)
 180                 return err;
 181
 182         err = phy_write(phydev, 0x1d, 0x5);
 183         if (err < 0)
 184                 return err;
 185
 186         err = phy_write(phydev, 0x1e, 0);
 187         if (err < 0)
 188                 return err;
 189
 190         err = phy_write(phydev, 0x1e, 0x100);
 191         if (err < 0)
 192                 return err;
 193
 194         err = phy_write(phydev, MII_M1011_PHY_SCR,
 195                         MII_M1011_PHY_SCR_AUTO_CROSS);
 196         if (err < 0)
 197                 return err;
 198
 199         err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
 200                         MII_M1111_PHY_LED_DIRECT);
 201         if (err < 0)
 202                 return err;
 203
 204         err = genphy_config_aneg(phydev);
 205         if (err < 0)
 206                 return err;
 207
 208         if (phydev->autoneg != AUTONEG_ENABLE) {
 209                 int bmcr;
 210
 211                 /*
 212                  * A write to speed/duplex bits (that is performed by
 213                  * genphy_config_aneg() call above) must be followed by
 214                  * a software reset. Otherwise, the write has no effect.
 215                  */
 216                 bmcr = phy_read(phydev, MII_BMCR);
 217                 if (bmcr < 0)
 218                         return bmcr;
 219
 220                 err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
 221                 if (err < 0)
 222                         return err;
 223         }
 224
 225         return 0;
 226 }
 227
 228 #ifdef CONFIG_OF_MDIO
 229 /*
 230  * Set and/or override some configuration registers based on the
 231  * marvell,reg-init property stored in the of_node for the phydev.
 232  *
 233  * marvell,reg-init = <reg-page reg mask value>,...;
 234  *
 235  * There may be one or more sets of <reg-page reg mask value>:
 236  *
 237  * reg-page: which register bank to use.
 238  * reg: the register.
 239  * mask: if non-zero, ANDed with existing register value.
 240  * value: ORed with the masked value and written to the regiser.
 241  *
 242  */
 243 static int marvell_of_reg_init(struct phy_device *phydev)
 244 {
 245         const __be32 *paddr;
 246         int len, i, saved_page, current_page, page_changed, ret;
 247
 248         if (!phydev->dev.of_node)
 249                 return 0;
 250
 251         paddr = of_get_property(phydev->dev.of_node, "marvell,reg-init", &len);
 252         if (!paddr || len < (4 * sizeof(*paddr)))
 253                 return 0;
 254
 255         saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 256         if (saved_page < 0)
 257                 return saved_page;
 258         page_changed = 0;
 259         current_page = saved_page;
 260
 261         ret = 0;
 262         len /= sizeof(*paddr);
 263         for (i = 0; i < len - 3; i += 4) {
 264                 u16 reg_page = be32_to_cpup(paddr + i);
 265                 u16 reg = be32_to_cpup(paddr + i + 1);
 266                 u16 mask = be32_to_cpup(paddr + i + 2);
 267                 u16 val_bits = be32_to_cpup(paddr + i + 3);
 268                 int val;
 269
 270                 if (reg_page != current_page) {
 271                         current_page = reg_page;
 272                         page_changed = 1;
 273                         ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
 274                         if (ret < 0)
 275                                 goto err;
 276                 }
 277
 278                 val = 0;
 279                 if (mask) {
 280                         val = phy_read(phydev, reg);
 281                         if (val < 0) {
 282                                 ret = val;
 283                                 goto err;
 284                         }
 285                         val &= mask;
 286                 }
 287                 val |= val_bits;
 288
 289                 ret = phy_write(phydev, reg, val);
 290                 if (ret < 0)
 291                         goto err;
 292
 293         }
 294 err:
 295         if (page_changed) {
 296                 i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
 297                 if (ret == 0)
 298                         ret = i;
 299         }
 300         return ret;
 301 }
 302 #else
 303 static int marvell_of_reg_init(struct phy_device *phydev)
 304 {
 305         return 0;
 306 }
 307 #endif /* CONFIG_OF_MDIO */
 308
 309 static int m88e1121_config_aneg(struct phy_device *phydev)
 310 {
 311         int err, oldpage, mscr;
 312
 313         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 314
 315         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 316                         MII_88E1121_PHY_MSCR_PAGE);
 317         if (err < 0)
 318                 return err;
 319
 320         if (phy_interface_is_rgmii(phydev)) {
 321
 322                 mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
 323                         MII_88E1121_PHY_MSCR_DELAY_MASK;
 324
 325                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
 326                         mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
 327                                  MII_88E1121_PHY_MSCR_TX_DELAY);
 328                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
 329                         mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
 330                 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
 331                         mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
 332
 333                 err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
 334                 if (err < 0)
 335                         return err;
 336         }
 337
 338         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 339
 340         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 341         if (err < 0)
 342                 return err;
 343
 344         err = phy_write(phydev, MII_M1011_PHY_SCR,
 345                         MII_M1011_PHY_SCR_AUTO_CROSS);
 346         if (err < 0)
 347                 return err;
 348
 349         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 350
 351         phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_88E1121_PHY_LED_PAGE);
 352         phy_write(phydev, MII_88E1121_PHY_LED_CTRL, MII_88E1121_PHY_LED_DEF);
 353         phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 354
 355         err = genphy_config_aneg(phydev);
 356
 357         return err;
 358 }
 359
 360 static int m88e1318_config_aneg(struct phy_device *phydev)
 361 {
 362         int err, oldpage, mscr;
 363
 364         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 365
 366         err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 367                         MII_88E1121_PHY_MSCR_PAGE);
 368         if (err < 0)
 369                 return err;
 370
 371         mscr = phy_read(phydev, MII_88E1318S_PHY_MSCR1_REG);
 372         mscr |= MII_88E1318S_PHY_MSCR1_PAD_ODD;
 373
 374         err = phy_write(phydev, MII_88E1318S_PHY_MSCR1_REG, mscr);
 375         if (err < 0)
 376                 return err;
 377
 378         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 379         if (err < 0)
 380                 return err;
 381
 382         return m88e1121_config_aneg(phydev);
 383 }
 384
 385 static int m88e1510_config_aneg(struct phy_device *phydev)
 386 {
 387         int err;
 388
 389         err = m88e1318_config_aneg(phydev);
 390         if (err < 0)
 391                 return err;
 392
 393         return marvell_of_reg_init(phydev);
 394 }
 395
 396 static int m88e1116r_config_init(struct phy_device *phydev)
 397 {
 398         int temp;
 399         int err;
 400
 401         temp = phy_read(phydev, MII_BMCR);
 402         temp |= BMCR_RESET;
 403         err = phy_write(phydev, MII_BMCR, temp);
 404         if (err < 0)
 405                 return err;
 406
 407         mdelay(500);
 408
 409         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
 410         if (err < 0)
 411                 return err;
 412
 413         temp = phy_read(phydev, MII_M1011_PHY_SCR);
 414         temp |= (7 << 12);      /* max number of gigabit attempts */
 415         temp |= (1 << 11);      /* enable downshift */
 416         temp |= MII_M1011_PHY_SCR_AUTO_CROSS;
 417         err = phy_write(phydev, MII_M1011_PHY_SCR, temp);
 418         if (err < 0)
 419                 return err;
 420
 421         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 2);
 422         if (err < 0)
 423                 return err;
 424         temp = phy_read(phydev, MII_M1116R_CONTROL_REG_MAC);
 425         temp |= (1 << 5);
 426         temp |= (1 << 4);
 427         err = phy_write(phydev, MII_M1116R_CONTROL_REG_MAC, temp);
 428         if (err < 0)
 429                 return err;
 430         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
 431         if (err < 0)
 432                 return err;
 433
 434         temp = phy_read(phydev, MII_BMCR);
 435         temp |= BMCR_RESET;
 436         err = phy_write(phydev, MII_BMCR, temp);
 437         if (err < 0)
 438                 return err;
 439
 440         mdelay(500);
 441
 442         return 0;
 443 }
 444
 445 static int m88e3016_config_init(struct phy_device *phydev)
 446 {
 447         int reg;
 448
 449         /* Enable Scrambler and Auto-Crossover */
 450         reg = phy_read(phydev, MII_88E3016_PHY_SPEC_CTRL);
 451         if (reg < 0)
 452                 return reg;
 453
 454         reg &= ~MII_88E3016_DISABLE_SCRAMBLER;
 455         reg |= MII_88E3016_AUTO_MDIX_CROSSOVER;
 456
 457         reg = phy_write(phydev, MII_88E3016_PHY_SPEC_CTRL, reg);
 458         if (reg < 0)
 459                 return reg;
 460
 461         return 0;
 462 }
 463
 464 static int m88e1111_config_init(struct phy_device *phydev)
 465 {
 466         int err;
 467         int temp;
 468
 469         if (phy_interface_is_rgmii(phydev)) {
 470
 471                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 472                 if (temp < 0)
 473                         return temp;
 474
 475                 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 476                         temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 477                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 478                         temp &= ~MII_M1111_TX_DELAY;
 479                         temp |= MII_M1111_RX_DELAY;
 480                 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 481                         temp &= ~MII_M1111_RX_DELAY;
 482                         temp |= MII_M1111_TX_DELAY;
 483                 }
 484
 485                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 486                 if (err < 0)
 487                         return err;
 488
 489                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 490                 if (temp < 0)
 491                         return temp;
 492
 493                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 494
 495                 if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
 496                         temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
 497                 else
 498                         temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
 499
 500                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 501                 if (err < 0)
 502                         return err;
 503         }
 504
 505         if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
 506                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 507                 if (temp < 0)
 508                         return temp;
 509
 510                 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
 511                 temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
 512                 temp |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 513
 514                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 515                 if (err < 0)
 516                         return err;
 517         }
 518
 519         if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
 520                 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
 521                 if (temp < 0)
 522                         return temp;
 523                 temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
 524                 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
 525                 if (err < 0)
 526                         return err;
 527
 528                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 529                 if (temp < 0)
 530                         return temp;
 531                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 532                 temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 533                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 534                 if (err < 0)
 535                         return err;
 536
 537                 /* soft reset */
 538                 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 539                 if (err < 0)
 540                         return err;
 541                 do
 542                         temp = phy_read(phydev, MII_BMCR);
 543                 while (temp & BMCR_RESET);
 544
 545                 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 546                 if (temp < 0)
 547                         return temp;
 548                 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
 549                 temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
 550                 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
 551                 if (err < 0)
 552                         return err;
 553         }
 554
 555         err = marvell_of_reg_init(phydev);
 556         if (err < 0)
 557                 return err;
 558
 559         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 560 }
 561
 562 static int m88e1118_config_aneg(struct phy_device *phydev)
 563 {
 564         int err;
 565
 566         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 567         if (err < 0)
 568                 return err;
 569
 570         err = phy_write(phydev, MII_M1011_PHY_SCR,
 571                         MII_M1011_PHY_SCR_AUTO_CROSS);
 572         if (err < 0)
 573                 return err;
 574
 575         err = genphy_config_aneg(phydev);
 576         return 0;
 577 }
 578
 579 static int m88e1118_config_init(struct phy_device *phydev)
 580 {
 581         int err;
 582
 583         /* Change address */
 584         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 585         if (err < 0)
 586                 return err;
 587
 588         /* Enable 1000 Mbit */
 589         err = phy_write(phydev, 0x15, 0x1070);
 590         if (err < 0)
 591                 return err;
 592
 593         /* Change address */
 594         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0003);
 595         if (err < 0)
 596                 return err;
 597
 598         /* Adjust LED Control */
 599         if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
 600                 err = phy_write(phydev, 0x10, 0x1100);
 601         else
 602                 err = phy_write(phydev, 0x10, 0x021e);
 603         if (err < 0)
 604                 return err;
 605
 606         err = marvell_of_reg_init(phydev);
 607         if (err < 0)
 608                 return err;
 609
 610         /* Reset address */
 611         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 612         if (err < 0)
 613                 return err;
 614
 615         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 616 }
 617
 618 static int m88e1149_config_init(struct phy_device *phydev)
 619 {
 620         int err;
 621
 622         /* Change address */
 623         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
 624         if (err < 0)
 625                 return err;
 626
 627         /* Enable 1000 Mbit */
 628         err = phy_write(phydev, 0x15, 0x1048);
 629         if (err < 0)
 630                 return err;
 631
 632         err = marvell_of_reg_init(phydev);
 633         if (err < 0)
 634                 return err;
 635
 636         /* Reset address */
 637         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
 638         if (err < 0)
 639                 return err;
 640
 641         return phy_write(phydev, MII_BMCR, BMCR_RESET);
 642 }
 643
 644 static int m88e1145_config_init(struct phy_device *phydev)
 645 {
 646         int err;
 647         int temp;
 648
 649         /* Take care of errata E0 & E1 */
 650         err = phy_write(phydev, 0x1d, 0x001b);
 651         if (err < 0)
 652                 return err;
 653
 654         err = phy_write(phydev, 0x1e, 0x418f);
 655         if (err < 0)
 656                 return err;
 657
 658         err = phy_write(phydev, 0x1d, 0x0016);
 659         if (err < 0)
 660                 return err;
 661
 662         err = phy_write(phydev, 0x1e, 0xa2da);
 663         if (err < 0)
 664                 return err;
 665
 666         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 667                 int temp = phy_read(phydev, MII_M1145_PHY_EXT_CR);
 668                 if (temp < 0)
 669                         return temp;
 670
 671                 temp |= (MII_M1145_RGMII_RX_DELAY | MII_M1145_RGMII_TX_DELAY);
 672
 673                 err = phy_write(phydev, MII_M1145_PHY_EXT_CR, temp);
 674                 if (err < 0)
 675                         return err;
 676
 677                 if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
 678                         err = phy_write(phydev, 0x1d, 0x0012);
 679                         if (err < 0)
 680                                 return err;
 681
 682                         temp = phy_read(phydev, 0x1e);
 683                         if (temp < 0)
 684                                 return temp;
 685
 686                         temp &= 0xf03f;
 687                         temp |= 2 << 9; /* 36 ohm */
 688                         temp |= 2 << 6; /* 39 ohm */
 689
 690                         err = phy_write(phydev, 0x1e, temp);
 691                         if (err < 0)
 692                                 return err;
 693
 694                         err = phy_write(phydev, 0x1d, 0x3);
 695                         if (err < 0)
 696                                 return err;
 697
 698                         err = phy_write(phydev, 0x1e, 0x8000);
 699                         if (err < 0)
 700                                 return err;
 701                 }
 702         }
 703
 704         if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
 705                 temp = phy_read(phydev, MII_M1145_PHY_EXT_SR);
 706                 if (temp < 0)
 707                         return temp;
 708
 709                 temp &= ~MII_M1145_HWCFG_MODE_MASK;
 710                 temp |= MII_M1145_HWCFG_MODE_SGMII_NO_CLK;
 711                 temp |= MII_M1145_HWCFG_FIBER_COPPER_AUTO;
 712
 713                 err = phy_write(phydev, MII_M1145_PHY_EXT_SR, temp);
 714                 if (err < 0)
 715                         return err;
 716         }
 717
 718         err = marvell_of_reg_init(phydev);
 719         if (err < 0)
 720                 return err;
 721
 722         return 0;
 723 }
 724
 725 /* marvell_read_status
 726  *
 727  * Generic status code does not detect Fiber correctly!
 728  * Description:
 729  *   Check the link, then figure out the current state
 730  *   by comparing what we advertise with what the link partner
 731  *   advertises.  Start by checking the gigabit possibilities,
 732  *   then move on to 10/100.
 733  */
 734 static int marvell_read_status(struct phy_device *phydev)
 735 {
 736         int adv;
 737         int err;
 738         int lpa;
 739         int status = 0;
 740
 741         /* Update the link, but return if there
 742          * was an error */
 743         err = genphy_update_link(phydev);
 744         if (err)
 745                 return err;
 746
 747         if (AUTONEG_ENABLE == phydev->autoneg) {
 748                 status = phy_read(phydev, MII_M1011_PHY_STATUS);
 749                 if (status < 0)
 750                         return status;
 751
 752                 lpa = phy_read(phydev, MII_LPA);
 753                 if (lpa < 0)
 754                         return lpa;
 755
 756                 adv = phy_read(phydev, MII_ADVERTISE);
 757                 if (adv < 0)
 758                         return adv;
 759
 760                 lpa &= adv;
 761
 762                 if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
 763                         phydev->duplex = DUPLEX_FULL;
 764                 else
 765                         phydev->duplex = DUPLEX_HALF;
 766
 767                 status = status & MII_M1011_PHY_STATUS_SPD_MASK;
 768                 phydev->pause = phydev->asym_pause = 0;
 769
 770                 switch (status) {
 771                 case MII_M1011_PHY_STATUS_1000:
 772                         phydev->speed = SPEED_1000;
 773                         break;
 774
 775                 case MII_M1011_PHY_STATUS_100:
 776                         phydev->speed = SPEED_100;
 777                         break;
 778
 779                 default:
 780                         phydev->speed = SPEED_10;
 781                         break;
 782                 }
 783
 784                 if (phydev->duplex == DUPLEX_FULL) {
 785                         phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
 786                         phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
 787                 }
 788         } else {
 789                 int bmcr = phy_read(phydev, MII_BMCR);
 790
 791                 if (bmcr < 0)
 792                         return bmcr;
 793
 794                 if (bmcr & BMCR_FULLDPLX)
 795                         phydev->duplex = DUPLEX_FULL;
 796                 else
 797                         phydev->duplex = DUPLEX_HALF;
 798
 799                 if (bmcr & BMCR_SPEED1000)
 800                         phydev->speed = SPEED_1000;
 801                 else if (bmcr & BMCR_SPEED100)
 802                         phydev->speed = SPEED_100;
 803                 else
 804                         phydev->speed = SPEED_10;
 805
 806                 phydev->pause = phydev->asym_pause = 0;
 807         }
 808
 809         return 0;
 810 }
 811
 812 static int marvell_aneg_done(struct phy_device *phydev)
 813 {
 814         int retval = phy_read(phydev, MII_M1011_PHY_STATUS);
 815         return (retval < 0) ? retval : (retval & MII_M1011_PHY_STATUS_RESOLVED);
 816 }
 817
 818 static int m88e1121_did_interrupt(struct phy_device *phydev)
 819 {
 820         int imask;
 821
 822         imask = phy_read(phydev, MII_M1011_IEVENT);
 823
 824         if (imask & MII_M1011_IMASK_INIT)
 825                 return 1;
 826
 827         return 0;
 828 }
 829
 830 static void m88e1318_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
 831 {
 832         wol->supported = WAKE_MAGIC;
 833         wol->wolopts = 0;
 834
 835         if (phy_write(phydev, MII_MARVELL_PHY_PAGE,
 836                       MII_88E1318S_PHY_WOL_PAGE) < 0)
 837                 return;
 838
 839         if (phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL) &
 840             MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE)
 841                 wol->wolopts |= WAKE_MAGIC;
 842
 843         if (phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x00) < 0)
 844                 return;
 845 }
 846
 847 static int m88e1318_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
 848 {
 849         int err, oldpage, temp;
 850
 851         oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
 852
 853         if (wol->wolopts & WAKE_MAGIC) {
 854                 /* Explicitly switch to page 0x00, just to be sure */
 855                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x00);
 856                 if (err < 0)
 857                         return err;
 858
 859                 /* Enable the WOL interrupt */
 860                 temp = phy_read(phydev, MII_88E1318S_PHY_CSIER);
 861                 temp |= MII_88E1318S_PHY_CSIER_WOL_EIE;
 862                 err = phy_write(phydev, MII_88E1318S_PHY_CSIER, temp);
 863                 if (err < 0)
 864                         return err;
 865
 866                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 867                                 MII_88E1318S_PHY_LED_PAGE);
 868                 if (err < 0)
 869                         return err;
 870
 871                 /* Setup LED[2] as interrupt pin (active low) */
 872                 temp = phy_read(phydev, MII_88E1318S_PHY_LED_TCR);
 873                 temp &= ~MII_88E1318S_PHY_LED_TCR_FORCE_INT;
 874                 temp |= MII_88E1318S_PHY_LED_TCR_INTn_ENABLE;
 875                 temp |= MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW;
 876                 err = phy_write(phydev, MII_88E1318S_PHY_LED_TCR, temp);
 877                 if (err < 0)
 878                         return err;
 879
 880                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 881                                 MII_88E1318S_PHY_WOL_PAGE);
 882                 if (err < 0)
 883                         return err;
 884
 885                 /* Store the device address for the magic packet */
 886                 err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD2,
 887                                 ((phydev->attached_dev->dev_addr[5] << 8) |
 888                                  phydev->attached_dev->dev_addr[4]));
 889                 if (err < 0)
 890                         return err;
 891                 err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD1,
 892                                 ((phydev->attached_dev->dev_addr[3] << 8) |
 893                                  phydev->attached_dev->dev_addr[2]));
 894                 if (err < 0)
 895                         return err;
 896                 err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD0,
 897                                 ((phydev->attached_dev->dev_addr[1] << 8) |
 898                                  phydev->attached_dev->dev_addr[0]));
 899                 if (err < 0)
 900                         return err;
 901
 902                 /* Clear WOL status and enable magic packet matching */
 903                 temp = phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
 904                 temp |= MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS;
 905                 temp |= MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE;
 906                 err = phy_write(phydev, MII_88E1318S_PHY_WOL_CTRL, temp);
 907                 if (err < 0)
 908                         return err;
 909         } else {
 910                 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
 911                                 MII_88E1318S_PHY_WOL_PAGE);
 912                 if (err < 0)
 913                         return err;
 914
 915                 /* Clear WOL status and disable magic packet matching */
 916                 temp = phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
 917                 temp |= MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS;
 918                 temp &= ~MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE;
 919                 err = phy_write(phydev, MII_88E1318S_PHY_WOL_CTRL, temp);
 920                 if (err < 0)
 921                         return err;
 922         }
 923
 924         err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
 925         if (err < 0)
 926                 return err;
 927
 928         return 0;
 929 }
 930
 931 static struct phy_driver marvell_drivers[] = {
 932         {
 933                 .phy_id = MARVELL_PHY_ID_88E1101,
 934                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 935                 .name = "Marvell 88E1101",
 936                 .features = PHY_GBIT_FEATURES,
 937                 .flags = PHY_HAS_INTERRUPT,
 938                 .config_aneg = &marvell_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_88E1112,
 948                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 949                 .name = "Marvell 88E1112",
 950                 .features = PHY_GBIT_FEATURES,
 951                 .flags = PHY_HAS_INTERRUPT,
 952                 .config_init = &m88e1111_config_init,
 953                 .config_aneg = &marvell_config_aneg,
 954                 .read_status = &genphy_read_status,
 955                 .ack_interrupt = &marvell_ack_interrupt,
 956                 .config_intr = &marvell_config_intr,
 957                 .resume = &genphy_resume,
 958                 .suspend = &genphy_suspend,
 959                 .driver = { .owner = THIS_MODULE },
 960         },
 961         {
 962                 .phy_id = MARVELL_PHY_ID_88E1111,
 963                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 964                 .name = "Marvell 88E1111",
 965                 .features = PHY_GBIT_FEATURES,
 966                 .flags = PHY_HAS_INTERRUPT,
 967                 .config_init = &m88e1111_config_init,
 968                 .config_aneg = &marvell_config_aneg,
 969                 .read_status = &marvell_read_status,
 970                 .ack_interrupt = &marvell_ack_interrupt,
 971                 .config_intr = &marvell_config_intr,
 972                 .resume = &genphy_resume,
 973                 .suspend = &genphy_suspend,
 974                 .driver = { .owner = THIS_MODULE },
 975         },
 976         {
 977                 .phy_id = MARVELL_PHY_ID_88E1118,
 978                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 979                 .name = "Marvell 88E1118",
 980                 .features = PHY_GBIT_FEATURES,
 981                 .flags = PHY_HAS_INTERRUPT,
 982                 .config_init = &m88e1118_config_init,
 983                 .config_aneg = &m88e1118_config_aneg,
 984                 .read_status = &genphy_read_status,
 985                 .ack_interrupt = &marvell_ack_interrupt,
 986                 .config_intr = &marvell_config_intr,
 987                 .resume = &genphy_resume,
 988                 .suspend = &genphy_suspend,
 989                 .driver = {.owner = THIS_MODULE,},
 990         },
 991         {
 992                 .phy_id = MARVELL_PHY_ID_88E1121R,
 993                 .phy_id_mask = MARVELL_PHY_ID_MASK,
 994                 .name = "Marvell 88E1121R",
 995                 .features = PHY_GBIT_FEATURES,
 996                 .flags = PHY_HAS_INTERRUPT,
 997                 .config_aneg = &m88e1121_config_aneg,
 998                 .read_status = &marvell_read_status,
 999                 .ack_interrupt = &marvell_ack_interrupt,
1000                 .config_intr = &marvell_config_intr,
1001                 .did_interrupt = &m88e1121_did_interrupt,
1002                 .resume = &genphy_resume,
1003                 .suspend = &genphy_suspend,
1004                 .driver = { .owner = THIS_MODULE },
1005         },
1006         {
1007                 .phy_id = MARVELL_PHY_ID_88E1318S,
1008                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1009                 .name = "Marvell 88E1318S",
1010                 .features = PHY_GBIT_FEATURES,
1011                 .flags = PHY_HAS_INTERRUPT,
1012                 .config_aneg = &m88e1318_config_aneg,
1013                 .read_status = &marvell_read_status,
1014                 .ack_interrupt = &marvell_ack_interrupt,
1015                 .config_intr = &marvell_config_intr,
1016                 .did_interrupt = &m88e1121_did_interrupt,
1017                 .get_wol = &m88e1318_get_wol,
1018                 .set_wol = &m88e1318_set_wol,
1019                 .resume = &genphy_resume,
1020                 .suspend = &genphy_suspend,
1021                 .driver = { .owner = THIS_MODULE },
1022         },
1023         {
1024                 .phy_id = MARVELL_PHY_ID_88E1145,
1025                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1026                 .name = "Marvell 88E1145",
1027                 .features = PHY_GBIT_FEATURES,
1028                 .flags = PHY_HAS_INTERRUPT,
1029                 .config_init = &m88e1145_config_init,
1030                 .config_aneg = &marvell_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_88E1149R,
1040                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1041                 .name = "Marvell 88E1149R",
1042                 .features = PHY_GBIT_FEATURES,
1043                 .flags = PHY_HAS_INTERRUPT,
1044                 .config_init = &m88e1149_config_init,
1045                 .config_aneg = &m88e1118_config_aneg,
1046                 .read_status = &genphy_read_status,
1047                 .ack_interrupt = &marvell_ack_interrupt,
1048                 .config_intr = &marvell_config_intr,
1049                 .resume = &genphy_resume,
1050                 .suspend = &genphy_suspend,
1051                 .driver = { .owner = THIS_MODULE },
1052         },
1053         {
1054                 .phy_id = MARVELL_PHY_ID_88E1240,
1055                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1056                 .name = "Marvell 88E1240",
1057                 .features = PHY_GBIT_FEATURES,
1058                 .flags = PHY_HAS_INTERRUPT,
1059                 .config_init = &m88e1111_config_init,
1060                 .config_aneg = &marvell_config_aneg,
1061                 .read_status = &genphy_read_status,
1062                 .ack_interrupt = &marvell_ack_interrupt,
1063                 .config_intr = &marvell_config_intr,
1064                 .resume = &genphy_resume,
1065                 .suspend = &genphy_suspend,
1066                 .driver = { .owner = THIS_MODULE },
1067         },
1068         {
1069                 .phy_id = MARVELL_PHY_ID_88E1116R,
1070                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1071                 .name = "Marvell 88E1116R",
1072                 .features = PHY_GBIT_FEATURES,
1073                 .flags = PHY_HAS_INTERRUPT,
1074                 .config_init = &m88e1116r_config_init,
1075                 .config_aneg = &genphy_config_aneg,
1076                 .read_status = &genphy_read_status,
1077                 .ack_interrupt = &marvell_ack_interrupt,
1078                 .config_intr = &marvell_config_intr,
1079                 .resume = &genphy_resume,
1080                 .suspend = &genphy_suspend,
1081                 .driver = { .owner = THIS_MODULE },
1082         },
1083         {
1084                 .phy_id = MARVELL_PHY_ID_88E1510,
1085                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1086                 .name = "Marvell 88E1510",
1087                 .features = PHY_GBIT_FEATURES,
1088                 .flags = PHY_HAS_INTERRUPT,
1089                 .config_aneg = &m88e1510_config_aneg,
1090                 .read_status = &marvell_read_status,
1091                 .ack_interrupt = &marvell_ack_interrupt,
1092                 .config_intr = &marvell_config_intr,
1093                 .did_interrupt = &m88e1121_did_interrupt,
1094                 .resume = &genphy_resume,
1095                 .suspend = &genphy_suspend,
1096                 .driver = { .owner = THIS_MODULE },
1097         },
1098         {
1099                 .phy_id = MARVELL_PHY_ID_88E3016,
1100                 .phy_id_mask = MARVELL_PHY_ID_MASK,
1101                 .name = "Marvell 88E3016",
1102                 .features = PHY_BASIC_FEATURES,
1103                 .flags = PHY_HAS_INTERRUPT,
1104                 .config_aneg = &genphy_config_aneg,
1105                 .config_init = &m88e3016_config_init,
1106                 .aneg_done = &marvell_aneg_done,
1107                 .read_status = &marvell_read_status,
1108                 .ack_interrupt = &marvell_ack_interrupt,
1109                 .config_intr = &marvell_config_intr,
1110                 .did_interrupt = &m88e1121_did_interrupt,
1111                 .resume = &genphy_resume,
1112                 .suspend = &genphy_suspend,
1113                 .driver = { .owner = THIS_MODULE },
1114         },
1115 };
1116
1117 module_phy_driver(marvell_drivers);
1118
1119 static struct mdio_device_id __maybe_unused marvell_tbl[] = {
1120         { MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK },
1121         { MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK },
1122         { MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK },
1123         { MARVELL_PHY_ID_88E1118, MARVELL_PHY_ID_MASK },
1124         { MARVELL_PHY_ID_88E1121R, MARVELL_PHY_ID_MASK },
1125         { MARVELL_PHY_ID_88E1145, MARVELL_PHY_ID_MASK },
1126         { MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
1127         { MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
1128         { MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
1129         { MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
1130         { MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
1131         { MARVELL_PHY_ID_88E3016, MARVELL_PHY_ID_MASK },
1132         { }
1133 };
1134
1135 MODULE_DEVICE_TABLE(mdio, marvell_tbl);