drivers/qe/uec_phy.c

   1 /*
   2  * Copyright (C) 2005,2010-2011 Freescale Semiconductor, Inc.
   3  *
   4  * Author: Shlomi Gridish
   5  *
   6  * Description: UCC GETH Driver -- PHY handling
   7  *              Driver for UEC on QE
   8  *              Based on 8260_io/fcc_enet.c
   9  *
  10  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <common.h>
  14 #include <net.h>
  15 #include <malloc.h>
  16 #include <linux/errno.h>
  17 #include <linux/immap_qe.h>
  18 #include <asm/io.h>
  19 #include "uccf.h"
  20 #include "uec.h"
  21 #include "uec_phy.h"
  22 #include "miiphy.h"
  23 #include <fsl_qe.h>
  24 #include <phy.h>
  25
  26 #define ugphy_printk(format, arg...)  \
  27         printf(format "\n", ## arg)
  28
  29 #define ugphy_dbg(format, arg...)            \
  30         ugphy_printk(format , ## arg)
  31 #define ugphy_err(format, arg...)            \
  32         ugphy_printk(format , ## arg)
  33 #define ugphy_info(format, arg...)           \
  34         ugphy_printk(format , ## arg)
  35 #define ugphy_warn(format, arg...)           \
  36         ugphy_printk(format , ## arg)
  37
  38 #ifdef UEC_VERBOSE_DEBUG
  39 #define ugphy_vdbg ugphy_dbg
  40 #else
  41 #define ugphy_vdbg(ugeth, fmt, args...) do { } while (0)
  42 #endif /* UEC_VERBOSE_DEBUG */
  43
  44 /*--------------------------------------------------------------------+
  45  * Fixed PHY (PHY-less) support for Ethernet Ports.
  46  *
  47  * Copied from arch/powerpc/cpu/ppc4xx/4xx_enet.c
  48  *--------------------------------------------------------------------*/
  49
  50 /*
  51  * Some boards do not have a PHY for each ethernet port. These ports are known
  52  * as Fixed PHY (or PHY-less) ports. For such ports, set the appropriate
  53  * CONFIG_SYS_UECx_PHY_ADDR equal to CONFIG_FIXED_PHY_ADDR (an unused address)
  54  * When the drver tries to identify the PHYs, CONFIG_FIXED_PHY will be returned
  55  * and the driver will search CONFIG_SYS_FIXED_PHY_PORTS to find what network
  56  * speed and duplex should be for the port.
  57  *
  58  * Example board header configuration file:
  59  *     #define CONFIG_FIXED_PHY   0xFFFFFFFF
  60  *     #define CONFIG_SYS_FIXED_PHY_ADDR 0x1E (pick an unused phy address)
  61  *
  62  *     #define CONFIG_SYS_UEC1_PHY_ADDR CONFIG_SYS_FIXED_PHY_ADDR
  63  *     #define CONFIG_SYS_UEC2_PHY_ADDR 0x02
  64  *     #define CONFIG_SYS_UEC3_PHY_ADDR CONFIG_SYS_FIXED_PHY_ADDR
  65  *     #define CONFIG_SYS_UEC4_PHY_ADDR 0x04
  66  *
  67  *     #define CONFIG_SYS_FIXED_PHY_PORT(name,speed,duplex) \
  68  *                 {name, speed, duplex},
  69  *
  70  *     #define CONFIG_SYS_FIXED_PHY_PORTS \
  71  *                 CONFIG_SYS_FIXED_PHY_PORT("UEC0",SPEED_100,DUPLEX_FULL) \
  72  *                 CONFIG_SYS_FIXED_PHY_PORT("UEC2",SPEED_100,DUPLEX_HALF)
  73  */
  74
  75 #ifndef CONFIG_FIXED_PHY
  76 #define CONFIG_FIXED_PHY        0xFFFFFFFF /* Fixed PHY (PHY-less) */
  77 #endif
  78
  79 #ifndef CONFIG_SYS_FIXED_PHY_PORTS
  80 #define CONFIG_SYS_FIXED_PHY_PORTS      /* default is an empty array */
  81 #endif
  82
  83 struct fixed_phy_port {
  84         char name[16];  /* ethernet port name */
  85         unsigned int speed;     /* specified speed 10,100 or 1000 */
  86         unsigned int duplex;    /* specified duplex FULL or HALF */
  87 };
  88
  89 static const struct fixed_phy_port fixed_phy_port[] = {
  90         CONFIG_SYS_FIXED_PHY_PORTS /* defined in board configuration file */
  91 };
  92
  93 /*--------------------------------------------------------------------+
  94  * BitBang MII support for ethernet ports
  95  *
  96  * Based from MPC8560ADS implementation
  97  *--------------------------------------------------------------------*/
  98 /*
  99  * Example board header file to define bitbang ethernet ports:
 100  *
 101  * #define CONFIG_SYS_BITBANG_PHY_PORT(name) name,
 102  * #define CONFIG_SYS_BITBANG_PHY_PORTS CONFIG_SYS_BITBANG_PHY_PORT("UEC0")
 103 */
 104 #ifndef CONFIG_SYS_BITBANG_PHY_PORTS
 105 #define CONFIG_SYS_BITBANG_PHY_PORTS    /* default is an empty array */
 106 #endif
 107
 108 #if defined(CONFIG_BITBANGMII)
 109 static const char *bitbang_phy_port[] = {
 110         CONFIG_SYS_BITBANG_PHY_PORTS /* defined in board configuration file */
 111 };
 112 #endif /* CONFIG_BITBANGMII */
 113
 114 static void config_genmii_advert (struct uec_mii_info *mii_info);
 115 static void genmii_setup_forced (struct uec_mii_info *mii_info);
 116 static void genmii_restart_aneg (struct uec_mii_info *mii_info);
 117 static int gbit_config_aneg (struct uec_mii_info *mii_info);
 118 static int genmii_config_aneg (struct uec_mii_info *mii_info);
 119 static int genmii_update_link (struct uec_mii_info *mii_info);
 120 static int genmii_read_status (struct uec_mii_info *mii_info);
 121 u16 uec_phy_read(struct uec_mii_info *mii_info, u16 regnum);
 122 void uec_phy_write(struct uec_mii_info *mii_info, u16 regnum, u16 val);
 123
 124 /* Write value to the PHY for this device to the register at regnum, */
 125 /* waiting until the write is done before it returns.  All PHY */
 126 /* configuration has to be done through the TSEC1 MIIM regs */
 127 void uec_write_phy_reg (struct eth_device *dev, int mii_id, int regnum, int value)
 128 {
 129         uec_private_t *ugeth = (uec_private_t *) dev->priv;
 130         uec_mii_t *ug_regs;
 131         enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum;
 132         u32 tmp_reg;
 133
 134
 135 #if defined(CONFIG_BITBANGMII)
 136         u32 i = 0;
 137
 138         for (i = 0; i < ARRAY_SIZE(bitbang_phy_port); i++) {
 139                 if (strncmp(dev->name, bitbang_phy_port[i],
 140                         sizeof(dev->name)) == 0) {
 141                         (void)bb_miiphy_write(NULL, mii_id, regnum, value);
 142                         return;
 143                 }
 144         }
 145 #endif /* CONFIG_BITBANGMII */
 146
 147         ug_regs = ugeth->uec_mii_regs;
 148
 149         /* Stop the MII management read cycle */
 150         out_be32 (&ug_regs->miimcom, 0);
 151         /* Setting up the MII Mangement Address Register */
 152         tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
 153         out_be32 (&ug_regs->miimadd, tmp_reg);
 154
 155         /* Setting up the MII Mangement Control Register with the value */
 156         out_be32 (&ug_regs->miimcon, (u32) value);
 157         sync();
 158
 159         /* Wait till MII management write is complete */
 160         while ((in_be32 (&ug_regs->miimind)) & MIIMIND_BUSY);
 161 }
 162
 163 /* Reads from register regnum in the PHY for device dev, */
 164 /* returning the value.  Clears miimcom first.  All PHY */
 165 /* configuration has to be done through the TSEC1 MIIM regs */
 166 int uec_read_phy_reg (struct eth_device *dev, int mii_id, int regnum)
 167 {
 168         uec_private_t *ugeth = (uec_private_t *) dev->priv;
 169         uec_mii_t *ug_regs;
 170         enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum;
 171         u32 tmp_reg;
 172         u16 value;
 173
 174
 175 #if defined(CONFIG_BITBANGMII)
 176         u32 i = 0;
 177
 178         for (i = 0; i < ARRAY_SIZE(bitbang_phy_port); i++) {
 179                 if (strncmp(dev->name, bitbang_phy_port[i],
 180                         sizeof(dev->name)) == 0) {
 181                         (void)bb_miiphy_read(NULL, mii_id, regnum, &value);
 182                         return (value);
 183                 }
 184         }
 185 #endif /* CONFIG_BITBANGMII */
 186
 187         ug_regs = ugeth->uec_mii_regs;
 188
 189         /* Setting up the MII Mangement Address Register */
 190         tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
 191         out_be32 (&ug_regs->miimadd, tmp_reg);
 192
 193         /* clear MII management command cycle */
 194         out_be32 (&ug_regs->miimcom, 0);
 195         sync();
 196
 197         /* Perform an MII management read cycle */
 198         out_be32 (&ug_regs->miimcom, MIIMCOM_READ_CYCLE);
 199
 200         /* Wait till MII management write is complete */
 201         while ((in_be32 (&ug_regs->miimind)) &
 202                (MIIMIND_NOT_VALID | MIIMIND_BUSY));
 203
 204         /* Read MII management status  */
 205         value = (u16) in_be32 (&ug_regs->miimstat);
 206         if (value == 0xffff)
 207                 ugphy_vdbg
 208                         ("read wrong value : mii_id %d,mii_reg %d, base %08x",
 209                          mii_id, mii_reg, (u32) & (ug_regs->miimcfg));
 210
 211         return (value);
 212 }
 213
 214 void mii_clear_phy_interrupt (struct uec_mii_info *mii_info)
 215 {
 216         if (mii_info->phyinfo->ack_interrupt)
 217                 mii_info->phyinfo->ack_interrupt (mii_info);
 218 }
 219
 220 void mii_configure_phy_interrupt (struct uec_mii_info *mii_info,
 221                                   u32 interrupts)
 222 {
 223         mii_info->interrupts = interrupts;
 224         if (mii_info->phyinfo->config_intr)
 225                 mii_info->phyinfo->config_intr (mii_info);
 226 }
 227
 228 /* Writes MII_ADVERTISE with the appropriate values, after
 229  * sanitizing advertise to make sure only supported features
 230  * are advertised
 231  */
 232 static void config_genmii_advert (struct uec_mii_info *mii_info)
 233 {
 234         u32 advertise;
 235         u16 adv;
 236
 237         /* Only allow advertising what this PHY supports */
 238         mii_info->advertising &= mii_info->phyinfo->features;
 239         advertise = mii_info->advertising;
 240
 241         /* Setup standard advertisement */
 242         adv = uec_phy_read(mii_info, MII_ADVERTISE);
 243         adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
 244         if (advertise & ADVERTISED_10baseT_Half)
 245                 adv |= ADVERTISE_10HALF;
 246         if (advertise & ADVERTISED_10baseT_Full)
 247                 adv |= ADVERTISE_10FULL;
 248         if (advertise & ADVERTISED_100baseT_Half)
 249                 adv |= ADVERTISE_100HALF;
 250         if (advertise & ADVERTISED_100baseT_Full)
 251                 adv |= ADVERTISE_100FULL;
 252         uec_phy_write(mii_info, MII_ADVERTISE, adv);
 253 }
 254
 255 static void genmii_setup_forced (struct uec_mii_info *mii_info)
 256 {
 257         u16 ctrl;
 258         u32 features = mii_info->phyinfo->features;
 259
 260         ctrl = uec_phy_read(mii_info, MII_BMCR);
 261
 262         ctrl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 |
 263                   BMCR_SPEED1000 | BMCR_ANENABLE);
 264         ctrl |= BMCR_RESET;
 265
 266         switch (mii_info->speed) {
 267         case SPEED_1000:
 268                 if (features & (SUPPORTED_1000baseT_Half
 269                                 | SUPPORTED_1000baseT_Full)) {
 270                         ctrl |= BMCR_SPEED1000;
 271                         break;
 272                 }
 273                 mii_info->speed = SPEED_100;
 274         case SPEED_100:
 275                 if (features & (SUPPORTED_100baseT_Half
 276                                 | SUPPORTED_100baseT_Full)) {
 277                         ctrl |= BMCR_SPEED100;
 278                         break;
 279                 }
 280                 mii_info->speed = SPEED_10;
 281         case SPEED_10:
 282                 if (features & (SUPPORTED_10baseT_Half
 283                                 | SUPPORTED_10baseT_Full))
 284                         break;
 285         default:                /* Unsupported speed! */
 286                 ugphy_err ("%s: Bad speed!", mii_info->dev->name);
 287                 break;
 288         }
 289
 290         uec_phy_write(mii_info, MII_BMCR, ctrl);
 291 }
 292
 293 /* Enable and Restart Autonegotiation */
 294 static void genmii_restart_aneg (struct uec_mii_info *mii_info)
 295 {
 296         u16 ctl;
 297
 298         ctl = uec_phy_read(mii_info, MII_BMCR);
 299         ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
 300         uec_phy_write(mii_info, MII_BMCR, ctl);
 301 }
 302
 303 static int gbit_config_aneg (struct uec_mii_info *mii_info)
 304 {
 305         u16 adv;
 306         u32 advertise;
 307
 308         if (mii_info->autoneg) {
 309                 /* Configure the ADVERTISE register */
 310                 config_genmii_advert (mii_info);
 311                 advertise = mii_info->advertising;
 312
 313                 adv = uec_phy_read(mii_info, MII_CTRL1000);
 314                 adv &= ~(ADVERTISE_1000FULL |
 315                          ADVERTISE_1000HALF);
 316                 if (advertise & SUPPORTED_1000baseT_Half)
 317                         adv |= ADVERTISE_1000HALF;
 318                 if (advertise & SUPPORTED_1000baseT_Full)
 319                         adv |= ADVERTISE_1000FULL;
 320                 uec_phy_write(mii_info, MII_CTRL1000, adv);
 321
 322                 /* Start/Restart aneg */
 323                 genmii_restart_aneg (mii_info);
 324         } else
 325                 genmii_setup_forced (mii_info);
 326
 327         return 0;
 328 }
 329
 330 static int marvell_config_aneg (struct uec_mii_info *mii_info)
 331 {
 332         /* The Marvell PHY has an errata which requires
 333          * that certain registers get written in order
 334          * to restart autonegotiation */
 335         uec_phy_write(mii_info, MII_BMCR, BMCR_RESET);
 336
 337         uec_phy_write(mii_info, 0x1d, 0x1f);
 338         uec_phy_write(mii_info, 0x1e, 0x200c);
 339         uec_phy_write(mii_info, 0x1d, 0x5);
 340         uec_phy_write(mii_info, 0x1e, 0);
 341         uec_phy_write(mii_info, 0x1e, 0x100);
 342
 343         gbit_config_aneg (mii_info);
 344
 345         return 0;
 346 }
 347
 348 static int genmii_config_aneg (struct uec_mii_info *mii_info)
 349 {
 350         if (mii_info->autoneg) {
 351                 /* Speed up the common case, if link is already up, speed and
 352                    duplex match, skip auto neg as it already matches */
 353                 if (!genmii_read_status(mii_info) && mii_info->link)
 354                         if (mii_info->duplex == DUPLEX_FULL &&
 355                             mii_info->speed == SPEED_100)
 356                                 if (mii_info->advertising &
 357                                     ADVERTISED_100baseT_Full)
 358                                         return 0;
 359
 360                 config_genmii_advert (mii_info);
 361                 genmii_restart_aneg (mii_info);
 362         } else
 363                 genmii_setup_forced (mii_info);
 364
 365         return 0;
 366 }
 367
 368 static int genmii_update_link (struct uec_mii_info *mii_info)
 369 {
 370         u16 status;
 371
 372         /* Status is read once to clear old link state */
 373         uec_phy_read(mii_info, MII_BMSR);
 374
 375         /*
 376          * Wait if the link is up, and autonegotiation is in progress
 377          * (ie - we're capable and it's not done)
 378          */
 379         status = uec_phy_read(mii_info, MII_BMSR);
 380         if ((status & BMSR_LSTATUS) && (status & BMSR_ANEGCAPABLE)
 381             && !(status & BMSR_ANEGCOMPLETE)) {
 382                 int i = 0;
 383
 384                 while (!(status & BMSR_ANEGCOMPLETE)) {
 385                         /*
 386                          * Timeout reached ?
 387                          */
 388                         if (i > UGETH_AN_TIMEOUT) {
 389                                 mii_info->link = 0;
 390                                 return 0;
 391                         }
 392
 393                         i++;
 394                         udelay(1000);   /* 1 ms */
 395                         status = uec_phy_read(mii_info, MII_BMSR);
 396                 }
 397                 mii_info->link = 1;
 398         } else {
 399                 if (status & BMSR_LSTATUS)
 400                         mii_info->link = 1;
 401                 else
 402                         mii_info->link = 0;
 403         }
 404
 405         return 0;
 406 }
 407
 408 static int genmii_read_status (struct uec_mii_info *mii_info)
 409 {
 410         u16 status;
 411         int err;
 412
 413         /* Update the link, but return if there
 414          * was an error */
 415         err = genmii_update_link (mii_info);
 416         if (err)
 417                 return err;
 418
 419         if (mii_info->autoneg) {
 420                 status = uec_phy_read(mii_info, MII_STAT1000);
 421
 422                 if (status & (LPA_1000FULL | LPA_1000HALF)) {
 423                         mii_info->speed = SPEED_1000;
 424                         if (status & LPA_1000FULL)
 425                                 mii_info->duplex = DUPLEX_FULL;
 426                         else
 427                                 mii_info->duplex = DUPLEX_HALF;
 428                 } else {
 429                         status = uec_phy_read(mii_info, MII_LPA);
 430
 431                         if (status & (LPA_10FULL | LPA_100FULL))
 432                                 mii_info->duplex = DUPLEX_FULL;
 433                         else
 434                                 mii_info->duplex = DUPLEX_HALF;
 435                         if (status & (LPA_100FULL | LPA_100HALF))
 436                                 mii_info->speed = SPEED_100;
 437                         else
 438                                 mii_info->speed = SPEED_10;
 439                 }
 440                 mii_info->pause = 0;
 441         }
 442         /* On non-aneg, we assume what we put in BMCR is the speed,
 443          * though magic-aneg shouldn't prevent this case from occurring
 444          */
 445
 446         return 0;
 447 }
 448
 449 static int bcm_init(struct uec_mii_info *mii_info)
 450 {
 451         struct eth_device *edev = mii_info->dev;
 452         uec_private_t *uec = edev->priv;
 453
 454         gbit_config_aneg(mii_info);
 455
 456         if ((uec->uec_info->enet_interface_type ==
 457                                 PHY_INTERFACE_MODE_RGMII_RXID) &&
 458                         (uec->uec_info->speed == SPEED_1000)) {
 459                 u16 val;
 460                 int cnt = 50;
 461
 462                 /* Wait for aneg to complete. */
 463                 do
 464                         val = uec_phy_read(mii_info, MII_BMSR);
 465                 while (--cnt && !(val & BMSR_ANEGCOMPLETE));
 466
 467                 /* Set RDX clk delay. */
 468                 uec_phy_write(mii_info, 0x18, 0x7 | (7 << 12));
 469
 470                 val = uec_phy_read(mii_info, 0x18);
 471                 /* Set RDX-RXC skew. */
 472                 val |= (1 << 8);
 473                 val |= (7 | (7 << 12));
 474                 /* Write bits 14:0. */
 475                 val |= (1 << 15);
 476                 uec_phy_write(mii_info, 0x18, val);
 477         }
 478
 479          return 0;
 480 }
 481
 482 static int uec_marvell_init(struct uec_mii_info *mii_info)
 483 {
 484         struct eth_device *edev = mii_info->dev;
 485         uec_private_t *uec = edev->priv;
 486         phy_interface_t iface = uec->uec_info->enet_interface_type;
 487         int     speed = uec->uec_info->speed;
 488
 489         if ((speed == SPEED_1000) &&
 490            (iface == PHY_INTERFACE_MODE_RGMII_ID ||
 491             iface == PHY_INTERFACE_MODE_RGMII_RXID ||
 492             iface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 493                 int temp;
 494
 495                 temp = uec_phy_read(mii_info, MII_M1111_PHY_EXT_CR);
 496                 if (iface == PHY_INTERFACE_MODE_RGMII_ID) {
 497                         temp |= MII_M1111_RX_DELAY | MII_M1111_TX_DELAY;
 498                 } else if (iface == PHY_INTERFACE_MODE_RGMII_RXID) {
 499                         temp &= ~MII_M1111_TX_DELAY;
 500                         temp |= MII_M1111_RX_DELAY;
 501                 } else if (iface == PHY_INTERFACE_MODE_RGMII_TXID) {
 502                         temp &= ~MII_M1111_RX_DELAY;
 503                         temp |= MII_M1111_TX_DELAY;
 504                 }
 505                 uec_phy_write(mii_info, MII_M1111_PHY_EXT_CR, temp);
 506
 507                 temp = uec_phy_read(mii_info, MII_M1111_PHY_EXT_SR);
 508                 temp &= ~MII_M1111_HWCFG_MODE_MASK;
 509                 temp |= MII_M1111_HWCFG_MODE_RGMII;
 510                 uec_phy_write(mii_info, MII_M1111_PHY_EXT_SR, temp);
 511
 512                 uec_phy_write(mii_info, MII_BMCR, BMCR_RESET);
 513         }
 514
 515         return 0;
 516 }
 517
 518 static int marvell_read_status (struct uec_mii_info *mii_info)
 519 {
 520         u16 status;
 521         int err;
 522
 523         /* Update the link, but return if there
 524          * was an error */
 525         err = genmii_update_link (mii_info);
 526         if (err)
 527                 return err;
 528
 529         /* If the link is up, read the speed and duplex */
 530         /* If we aren't autonegotiating, assume speeds
 531          * are as set */
 532         if (mii_info->autoneg && mii_info->link) {
 533                 int speed;
 534
 535                 status = uec_phy_read(mii_info, MII_M1011_PHY_SPEC_STATUS);
 536
 537                 /* Get the duplexity */
 538                 if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX)
 539                         mii_info->duplex = DUPLEX_FULL;
 540                 else
 541                         mii_info->duplex = DUPLEX_HALF;
 542
 543                 /* Get the speed */
 544                 speed = status & MII_M1011_PHY_SPEC_STATUS_SPD_MASK;
 545                 switch (speed) {
 546                 case MII_M1011_PHY_SPEC_STATUS_1000:
 547                         mii_info->speed = SPEED_1000;
 548                         break;
 549                 case MII_M1011_PHY_SPEC_STATUS_100:
 550                         mii_info->speed = SPEED_100;
 551                         break;
 552                 default:
 553                         mii_info->speed = SPEED_10;
 554                         break;
 555                 }
 556                 mii_info->pause = 0;
 557         }
 558
 559         return 0;
 560 }
 561
 562 static int marvell_ack_interrupt (struct uec_mii_info *mii_info)
 563 {
 564         /* Clear the interrupts by reading the reg */
 565         uec_phy_read(mii_info, MII_M1011_IEVENT);
 566
 567         return 0;
 568 }
 569
 570 static int marvell_config_intr (struct uec_mii_info *mii_info)
 571 {
 572         if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
 573                 uec_phy_write(mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
 574         else
 575                 uec_phy_write(mii_info, MII_M1011_IMASK,
 576                                 MII_M1011_IMASK_CLEAR);
 577
 578         return 0;
 579 }
 580
 581 static int dm9161_init (struct uec_mii_info *mii_info)
 582 {
 583         /* Reset the PHY */
 584         uec_phy_write(mii_info, MII_BMCR, uec_phy_read(mii_info, MII_BMCR) |
 585                    BMCR_RESET);
 586         /* PHY and MAC connect */
 587         uec_phy_write(mii_info, MII_BMCR, uec_phy_read(mii_info, MII_BMCR) &
 588                    ~BMCR_ISOLATE);
 589
 590         uec_phy_write(mii_info, MII_DM9161_SCR, MII_DM9161_SCR_INIT);
 591
 592         config_genmii_advert (mii_info);
 593         /* Start/restart aneg */
 594         genmii_config_aneg (mii_info);
 595
 596         return 0;
 597 }
 598
 599 static int dm9161_config_aneg (struct uec_mii_info *mii_info)
 600 {
 601         return 0;
 602 }
 603
 604 static int dm9161_read_status (struct uec_mii_info *mii_info)
 605 {
 606         u16 status;
 607         int err;
 608
 609         /* Update the link, but return if there was an error */
 610         err = genmii_update_link (mii_info);
 611         if (err)
 612                 return err;
 613         /* If the link is up, read the speed and duplex
 614            If we aren't autonegotiating assume speeds are as set */
 615         if (mii_info->autoneg && mii_info->link) {
 616                 status = uec_phy_read(mii_info, MII_DM9161_SCSR);
 617                 if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_100H))
 618                         mii_info->speed = SPEED_100;
 619                 else
 620                         mii_info->speed = SPEED_10;
 621
 622                 if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_10F))
 623                         mii_info->duplex = DUPLEX_FULL;
 624                 else
 625                         mii_info->duplex = DUPLEX_HALF;
 626         }
 627
 628         return 0;
 629 }
 630
 631 static int dm9161_ack_interrupt (struct uec_mii_info *mii_info)
 632 {
 633         /* Clear the interrupt by reading the reg */
 634         uec_phy_read(mii_info, MII_DM9161_INTR);
 635
 636         return 0;
 637 }
 638
 639 static int dm9161_config_intr (struct uec_mii_info *mii_info)
 640 {
 641         if (mii_info->interrupts == MII_INTERRUPT_ENABLED)
 642                 uec_phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_INIT);
 643         else
 644                 uec_phy_write(mii_info, MII_DM9161_INTR, MII_DM9161_INTR_STOP);
 645
 646         return 0;
 647 }
 648
 649 static void dm9161_close (struct uec_mii_info *mii_info)
 650 {
 651 }
 652
 653 static int fixed_phy_aneg (struct uec_mii_info *mii_info)
 654 {
 655         mii_info->autoneg = 0; /* Turn off auto negotiation for fixed phy */
 656         return 0;
 657 }
 658
 659 static int fixed_phy_read_status (struct uec_mii_info *mii_info)
 660 {
 661         int i = 0;
 662
 663         for (i = 0; i < ARRAY_SIZE(fixed_phy_port); i++) {
 664                 if (strncmp(mii_info->dev->name, fixed_phy_port[i].name,
 665                                 strlen(mii_info->dev->name)) == 0) {
 666                         mii_info->speed = fixed_phy_port[i].speed;
 667                         mii_info->duplex = fixed_phy_port[i].duplex;
 668                         mii_info->link = 1; /* Link is always UP */
 669                         mii_info->pause = 0;
 670                         break;
 671                 }
 672         }
 673         return 0;
 674 }
 675
 676 static int smsc_config_aneg (struct uec_mii_info *mii_info)
 677 {
 678         return 0;
 679 }
 680
 681 static int smsc_read_status (struct uec_mii_info *mii_info)
 682 {
 683         u16 status;
 684         int err;
 685
 686         /* Update the link, but return if there
 687          * was an error */
 688         err = genmii_update_link (mii_info);
 689         if (err)
 690                 return err;
 691
 692         /* If the link is up, read the speed and duplex */
 693         /* If we aren't autonegotiating, assume speeds
 694          * are as set */
 695         if (mii_info->autoneg && mii_info->link) {
 696                 int     val;
 697
 698                 status = uec_phy_read(mii_info, 0x1f);
 699                 val = (status & 0x1c) >> 2;
 700
 701                 switch (val) {
 702                         case 1:
 703                                 mii_info->duplex = DUPLEX_HALF;
 704                                 mii_info->speed = SPEED_10;
 705                                 break;
 706                         case 5:
 707                                 mii_info->duplex = DUPLEX_FULL;
 708                                 mii_info->speed = SPEED_10;
 709                                 break;
 710                         case 2:
 711                                 mii_info->duplex = DUPLEX_HALF;
 712                                 mii_info->speed = SPEED_100;
 713                                 break;
 714                         case 6:
 715                                 mii_info->duplex = DUPLEX_FULL;
 716                                 mii_info->speed = SPEED_100;
 717                                 break;
 718                 }
 719                 mii_info->pause = 0;
 720         }
 721
 722         return 0;
 723 }
 724
 725 static struct phy_info phy_info_dm9161 = {
 726         .phy_id = 0x0181b880,
 727         .phy_id_mask = 0x0ffffff0,
 728         .name = "Davicom DM9161E",
 729         .init = dm9161_init,
 730         .config_aneg = dm9161_config_aneg,
 731         .read_status = dm9161_read_status,
 732         .close = dm9161_close,
 733 };
 734
 735 static struct phy_info phy_info_dm9161a = {
 736         .phy_id = 0x0181b8a0,
 737         .phy_id_mask = 0x0ffffff0,
 738         .name = "Davicom DM9161A",
 739         .features = MII_BASIC_FEATURES,
 740         .init = dm9161_init,
 741         .config_aneg = dm9161_config_aneg,
 742         .read_status = dm9161_read_status,
 743         .ack_interrupt = dm9161_ack_interrupt,
 744         .config_intr = dm9161_config_intr,
 745         .close = dm9161_close,
 746 };
 747
 748 static struct phy_info phy_info_marvell = {
 749         .phy_id = 0x01410c00,
 750         .phy_id_mask = 0xffffff00,
 751         .name = "Marvell 88E11x1",
 752         .features = MII_GBIT_FEATURES,
 753         .init = &uec_marvell_init,
 754         .config_aneg = &marvell_config_aneg,
 755         .read_status = &marvell_read_status,
 756         .ack_interrupt = &marvell_ack_interrupt,
 757         .config_intr = &marvell_config_intr,
 758 };
 759
 760 static struct phy_info phy_info_bcm5481 = {
 761         .phy_id = 0x0143bca0,
 762         .phy_id_mask = 0xffffff0,
 763         .name = "Broadcom 5481",
 764         .features = MII_GBIT_FEATURES,
 765         .read_status = genmii_read_status,
 766         .init = bcm_init,
 767 };
 768
 769 static struct phy_info phy_info_fixedphy = {
 770         .phy_id = CONFIG_FIXED_PHY,
 771         .phy_id_mask = CONFIG_FIXED_PHY,
 772         .name = "Fixed PHY",
 773         .config_aneg = fixed_phy_aneg,
 774         .read_status = fixed_phy_read_status,
 775 };
 776
 777 static struct phy_info phy_info_smsclan8700 = {
 778         .phy_id = 0x0007c0c0,
 779         .phy_id_mask = 0xfffffff0,
 780         .name = "SMSC LAN8700",
 781         .features = MII_BASIC_FEATURES,
 782         .config_aneg = smsc_config_aneg,
 783         .read_status = smsc_read_status,
 784 };
 785
 786 static struct phy_info phy_info_genmii = {
 787         .phy_id = 0x00000000,
 788         .phy_id_mask = 0x00000000,
 789         .name = "Generic MII",
 790         .features = MII_BASIC_FEATURES,
 791         .config_aneg = genmii_config_aneg,
 792         .read_status = genmii_read_status,
 793 };
 794
 795 static struct phy_info *phy_info[] = {
 796         &phy_info_dm9161,
 797         &phy_info_dm9161a,
 798         &phy_info_marvell,
 799         &phy_info_bcm5481,
 800         &phy_info_smsclan8700,
 801         &phy_info_fixedphy,
 802         &phy_info_genmii,
 803         NULL
 804 };
 805
 806 u16 uec_phy_read(struct uec_mii_info *mii_info, u16 regnum)
 807 {
 808         return mii_info->mdio_read (mii_info->dev, mii_info->mii_id, regnum);
 809 }
 810
 811 void uec_phy_write(struct uec_mii_info *mii_info, u16 regnum, u16 val)
 812 {
 813         mii_info->mdio_write (mii_info->dev, mii_info->mii_id, regnum, val);
 814 }
 815
 816 /* Use the PHY ID registers to determine what type of PHY is attached
 817  * to device dev.  return a struct phy_info structure describing that PHY
 818  */
 819 struct phy_info *uec_get_phy_info (struct uec_mii_info *mii_info)
 820 {
 821         u16 phy_reg;
 822         u32 phy_ID;
 823         int i;
 824         struct phy_info *theInfo = NULL;
 825
 826         /* Grab the bits from PHYIR1, and put them in the upper half */
 827         phy_reg = uec_phy_read(mii_info, MII_PHYSID1);
 828         phy_ID = (phy_reg & 0xffff) << 16;
 829
 830         /* Grab the bits from PHYIR2, and put them in the lower half */
 831         phy_reg = uec_phy_read(mii_info, MII_PHYSID2);
 832         phy_ID |= (phy_reg & 0xffff);
 833
 834         /* loop through all the known PHY types, and find one that */
 835         /* matches the ID we read from the PHY. */
 836         for (i = 0; phy_info[i]; i++)
 837                 if (phy_info[i]->phy_id ==
 838                     (phy_ID & phy_info[i]->phy_id_mask)) {
 839                         theInfo = phy_info[i];
 840                         break;
 841                 }
 842
 843         /* This shouldn't happen, as we have generic PHY support */
 844         if (theInfo == NULL) {
 845                 ugphy_info ("UEC: PHY id %x is not supported!", phy_ID);
 846                 return NULL;
 847         } else {
 848                 ugphy_info ("UEC: PHY is %s (%x)", theInfo->name, phy_ID);
 849         }
 850
 851         return theInfo;
 852 }
 853
 854 void marvell_phy_interface_mode(struct eth_device *dev, phy_interface_t type,
 855                 int speed)
 856 {
 857         uec_private_t *uec = (uec_private_t *) dev->priv;
 858         struct uec_mii_info *mii_info;
 859         u16 status;
 860
 861         if (!uec->mii_info) {
 862                 printf ("%s: the PHY not initialized\n", __FUNCTION__);
 863                 return;
 864         }
 865         mii_info = uec->mii_info;
 866
 867         if (type == PHY_INTERFACE_MODE_RGMII) {
 868                 if (speed == SPEED_100) {
 869                         uec_phy_write(mii_info, 0x00, 0x9140);
 870                         uec_phy_write(mii_info, 0x1d, 0x001f);
 871                         uec_phy_write(mii_info, 0x1e, 0x200c);
 872                         uec_phy_write(mii_info, 0x1d, 0x0005);
 873                         uec_phy_write(mii_info, 0x1e, 0x0000);
 874                         uec_phy_write(mii_info, 0x1e, 0x0100);
 875                         uec_phy_write(mii_info, 0x09, 0x0e00);
 876                         uec_phy_write(mii_info, 0x04, 0x01e1);
 877                         uec_phy_write(mii_info, 0x00, 0x9140);
 878                         uec_phy_write(mii_info, 0x00, 0x1000);
 879                         udelay (100000);
 880                         uec_phy_write(mii_info, 0x00, 0x2900);
 881                         uec_phy_write(mii_info, 0x14, 0x0cd2);
 882                         uec_phy_write(mii_info, 0x00, 0xa100);
 883                         uec_phy_write(mii_info, 0x09, 0x0000);
 884                         uec_phy_write(mii_info, 0x1b, 0x800b);
 885                         uec_phy_write(mii_info, 0x04, 0x05e1);
 886                         uec_phy_write(mii_info, 0x00, 0xa100);
 887                         uec_phy_write(mii_info, 0x00, 0x2100);
 888                         udelay (1000000);
 889                 } else if (speed == SPEED_10) {
 890                         uec_phy_write(mii_info, 0x14, 0x8e40);
 891                         uec_phy_write(mii_info, 0x1b, 0x800b);
 892                         uec_phy_write(mii_info, 0x14, 0x0c82);
 893                         uec_phy_write(mii_info, 0x00, 0x8100);
 894                         udelay (1000000);
 895                 }
 896         }
 897
 898         /* handle 88e1111 rev.B2 erratum 5.6 */
 899         if (mii_info->autoneg) {
 900                 status = uec_phy_read(mii_info, MII_BMCR);
 901                 uec_phy_write(mii_info, MII_BMCR, status | BMCR_ANENABLE);
 902         }
 903         /* now the B2 will correctly report autoneg completion status */
 904 }
 905
 906 void change_phy_interface_mode (struct eth_device *dev,
 907                                 phy_interface_t type, int speed)
 908 {
 909 #ifdef CONFIG_PHY_MODE_NEED_CHANGE
 910         marvell_phy_interface_mode (dev, type, speed);
 911 #endif
 912 }