drivers/tsec.c

   1 /*
   2  * Freescale Three Speed Ethernet Controller driver
   3  *
   4  * This software may be used and distributed according to the
   5  * terms of the GNU Public License, Version 2, incorporated
   6  * herein by reference.
   7  *
   8  * Copyright 2004 Freescale Semiconductor.
   9  * (C) Copyright 2003, Motorola, Inc.
  10  * author Andy Fleming
  11  *
  12  */
  13
  14 #include <config.h>
  15 #include <common.h>
  16 #include <malloc.h>
  17 #include <net.h>
  18 #include <command.h>
  19
  20 #if defined(CONFIG_TSEC_ENET)
  21 #include "tsec.h"
  22 #include "miiphy.h"
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 #define TX_BUF_CNT              2
  27
  28 static uint rxIdx;              /* index of the current RX buffer */
  29 static uint txIdx;              /* index of the current TX buffer */
  30
  31 typedef volatile struct rtxbd {
  32         txbd8_t txbd[TX_BUF_CNT];
  33         rxbd8_t rxbd[PKTBUFSRX];
  34 } RTXBD;
  35
  36 struct tsec_info_struct {
  37         unsigned int phyaddr;
  38         u32 flags;
  39         unsigned int phyregidx;
  40 };
  41
  42 /* The tsec_info structure contains 3 values which the
  43  * driver uses to determine how to operate a given ethernet
  44  * device. The information needed is:
  45  *  phyaddr - The address of the PHY which is attached to
  46  *      the given device.
  47  *
  48  *  flags - This variable indicates whether the device
  49  *      supports gigabit speed ethernet, and whether it should be
  50  *      in reduced mode.
  51  *
  52  *  phyregidx - This variable specifies which ethernet device
  53  *      controls the MII Management registers which are connected
  54  *      to the PHY.  For now, only TSEC1 (index 0) has
  55  *      access to the PHYs, so all of the entries have "0".
  56  *
  57  * The values specified in the table are taken from the board's
  58  * config file in include/configs/.  When implementing a new
  59  * board with ethernet capability, it is necessary to define:
  60  *   TSECn_PHY_ADDR
  61  *   TSECn_PHYIDX
  62  *
  63  * for n = 1,2,3, etc.  And for FEC:
  64  *   FEC_PHY_ADDR
  65  *   FEC_PHYIDX
  66  */
  67 static struct tsec_info_struct tsec_info[] = {
  68 #if defined(CONFIG_MPC85XX_TSEC1) || defined(CONFIG_MPC83XX_TSEC1)
  69         {TSEC1_PHY_ADDR, TSEC_GIGABIT, TSEC1_PHYIDX},
  70 #elif defined(CONFIG_MPC86XX_TSEC1)
  71         {TSEC1_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC1_PHYIDX},
  72 #else
  73         {0, 0, 0},
  74 #endif
  75 #if defined(CONFIG_MPC85XX_TSEC2) || defined(CONFIG_MPC83XX_TSEC2)
  76         {TSEC2_PHY_ADDR, TSEC_GIGABIT, TSEC2_PHYIDX},
  77 #elif defined(CONFIG_MPC86XX_TSEC2)
  78         {TSEC2_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC2_PHYIDX},
  79 #else
  80         {0, 0, 0},
  81 #endif
  82 #ifdef CONFIG_MPC85XX_FEC
  83         {FEC_PHY_ADDR, 0, FEC_PHYIDX},
  84 #else
  85 #if defined(CONFIG_MPC85XX_TSEC3) || defined(CONFIG_MPC83XX_TSEC3) || defined(CONFIG_MPC86XX_TSEC3)
  86         {TSEC3_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC3_PHYIDX},
  87 #else
  88         {0, 0, 0},
  89 #endif
  90 #if defined(CONFIG_MPC85XX_TSEC4) || defined(CONFIG_MPC83XX_TSEC4) || defined(CONFIG_MPC86XX_TSEC4)
  91         {TSEC4_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC4_PHYIDX},
  92 #else
  93         {0, 0, 0},
  94 #endif
  95 #endif
  96 };
  97
  98 #define MAXCONTROLLERS  (4)
  99
 100 static int relocated = 0;
 101
 102 static struct tsec_private *privlist[MAXCONTROLLERS];
 103
 104 #ifdef __GNUC__
 105 static RTXBD rtx __attribute__ ((aligned(8)));
 106 #else
 107 #error "rtx must be 64-bit aligned"
 108 #endif
 109
 110 static int tsec_send(struct eth_device *dev,
 111                      volatile void *packet, int length);
 112 static int tsec_recv(struct eth_device *dev);
 113 static int tsec_init(struct eth_device *dev, bd_t * bd);
 114 static void tsec_halt(struct eth_device *dev);
 115 static void init_registers(volatile tsec_t * regs);
 116 static void startup_tsec(struct eth_device *dev);
 117 static int init_phy(struct eth_device *dev);
 118 void write_phy_reg(struct tsec_private *priv, uint regnum, uint value);
 119 uint read_phy_reg(struct tsec_private *priv, uint regnum);
 120 struct phy_info *get_phy_info(struct eth_device *dev);
 121 void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd);
 122 static void adjust_link(struct eth_device *dev);
 123 static void relocate_cmds(void);
 124 static int tsec_miiphy_write(char *devname, unsigned char addr,
 125                              unsigned char reg, unsigned short value);
 126 static int tsec_miiphy_read(char *devname, unsigned char addr,
 127                             unsigned char reg, unsigned short *value);
 128
 129 /* Initialize device structure. Returns success if PHY
 130  * initialization succeeded (i.e. if it recognizes the PHY)
 131  */
 132 int tsec_initialize(bd_t * bis, int index, char *devname)
 133 {
 134         struct eth_device *dev;
 135         int i;
 136         struct tsec_private *priv;
 137
 138         dev = (struct eth_device *)malloc(sizeof *dev);
 139
 140         if (NULL == dev)
 141                 return 0;
 142
 143         memset(dev, 0, sizeof *dev);
 144
 145         priv = (struct tsec_private *)malloc(sizeof(*priv));
 146
 147         if (NULL == priv)
 148                 return 0;
 149
 150         privlist[index] = priv;
 151         priv->regs = (volatile tsec_t *)(TSEC_BASE_ADDR + index * TSEC_SIZE);
 152         priv->phyregs = (volatile tsec_t *)(TSEC_BASE_ADDR +
 153                                             tsec_info[index].phyregidx *
 154                                             TSEC_SIZE);
 155
 156         priv->phyaddr = tsec_info[index].phyaddr;
 157         priv->flags = tsec_info[index].flags;
 158
 159         sprintf(dev->name, devname);
 160         dev->iobase = 0;
 161         dev->priv = priv;
 162         dev->init = tsec_init;
 163         dev->halt = tsec_halt;
 164         dev->send = tsec_send;
 165         dev->recv = tsec_recv;
 166
 167         /* Tell u-boot to get the addr from the env */
 168         for (i = 0; i < 6; i++)
 169                 dev->enetaddr[i] = 0;
 170
 171         eth_register(dev);
 172
 173         /* Reset the MAC */
 174         priv->regs->maccfg1 |= MACCFG1_SOFT_RESET;
 175         priv->regs->maccfg1 &= ~(MACCFG1_SOFT_RESET);
 176
 177 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) \
 178         && !defined(BITBANGMII)
 179         miiphy_register(dev->name, tsec_miiphy_read, tsec_miiphy_write);
 180 #endif
 181
 182         /* Try to initialize PHY here, and return */
 183         return init_phy(dev);
 184 }
 185
 186 /* Initializes data structures and registers for the controller,
 187  * and brings the interface up.  Returns the link status, meaning
 188  * that it returns success if the link is up, failure otherwise.
 189  * This allows u-boot to find the first active controller.
 190  */
 191 int tsec_init(struct eth_device *dev, bd_t * bd)
 192 {
 193         uint tempval;
 194         char tmpbuf[MAC_ADDR_LEN];
 195         int i;
 196         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 197         volatile tsec_t *regs = priv->regs;
 198
 199         /* Make sure the controller is stopped */
 200         tsec_halt(dev);
 201
 202         /* Init MACCFG2.  Defaults to GMII */
 203         regs->maccfg2 = MACCFG2_INIT_SETTINGS;
 204
 205         /* Init ECNTRL */
 206         regs->ecntrl = ECNTRL_INIT_SETTINGS;
 207
 208         /* Copy the station address into the address registers.
 209          * Backwards, because little endian MACS are dumb */
 210         for (i = 0; i < MAC_ADDR_LEN; i++) {
 211                 tmpbuf[MAC_ADDR_LEN - 1 - i] = dev->enetaddr[i];
 212         }
 213         regs->macstnaddr1 = *((uint *) (tmpbuf));
 214
 215         tempval = *((uint *) (tmpbuf + 4));
 216
 217         regs->macstnaddr2 = tempval;
 218
 219         /* reset the indices to zero */
 220         rxIdx = 0;
 221         txIdx = 0;
 222
 223         /* Clear out (for the most part) the other registers */
 224         init_registers(regs);
 225
 226         /* Ready the device for tx/rx */
 227         startup_tsec(dev);
 228
 229         /* If there's no link, fail */
 230         return priv->link;
 231
 232 }
 233
 234 /* Write value to the device's PHY through the registers
 235  * specified in priv, modifying the register specified in regnum.
 236  * It will wait for the write to be done (or for a timeout to
 237  * expire) before exiting
 238  */
 239 void write_phy_reg(struct tsec_private *priv, uint regnum, uint value)
 240 {
 241         volatile tsec_t *regbase = priv->phyregs;
 242         uint phyid = priv->phyaddr;
 243         int timeout = 1000000;
 244
 245         regbase->miimadd = (phyid << 8) | regnum;
 246         regbase->miimcon = value;
 247         asm("sync");
 248
 249         timeout = 1000000;
 250         while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
 251 }
 252
 253 /* Reads register regnum on the device's PHY through the
 254  * registers specified in priv.  It lowers and raises the read
 255  * command, and waits for the data to become valid (miimind
 256  * notvalid bit cleared), and the bus to cease activity (miimind
 257  * busy bit cleared), and then returns the value
 258  */
 259 uint read_phy_reg(struct tsec_private *priv, uint regnum)
 260 {
 261         uint value;
 262         volatile tsec_t *regbase = priv->phyregs;
 263         uint phyid = priv->phyaddr;
 264
 265         /* Put the address of the phy, and the register
 266          * number into MIIMADD */
 267         regbase->miimadd = (phyid << 8) | regnum;
 268
 269         /* Clear the command register, and wait */
 270         regbase->miimcom = 0;
 271         asm("sync");
 272
 273         /* Initiate a read command, and wait */
 274         regbase->miimcom = MIIM_READ_COMMAND;
 275         asm("sync");
 276
 277         /* Wait for the the indication that the read is done */
 278         while ((regbase->miimind & (MIIMIND_NOTVALID | MIIMIND_BUSY))) ;
 279
 280         /* Grab the value read from the PHY */
 281         value = regbase->miimstat;
 282
 283         return value;
 284 }
 285
 286 /* Discover which PHY is attached to the device, and configure it
 287  * properly.  If the PHY is not recognized, then return 0
 288  * (failure).  Otherwise, return 1
 289  */
 290 static int init_phy(struct eth_device *dev)
 291 {
 292         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 293         struct phy_info *curphy;
 294         volatile tsec_t *regs = (volatile tsec_t *)(TSEC_BASE_ADDR);
 295
 296         /* Assign a Physical address to the TBI */
 297         regs->tbipa = TBIPA_VALUE;
 298         regs = (volatile tsec_t *)(TSEC_BASE_ADDR + TSEC_SIZE);
 299         regs->tbipa = TBIPA_VALUE;
 300         asm("sync");
 301
 302         /* Reset MII (due to new addresses) */
 303         priv->phyregs->miimcfg = MIIMCFG_RESET;
 304         asm("sync");
 305         priv->phyregs->miimcfg = MIIMCFG_INIT_VALUE;
 306         asm("sync");
 307         while (priv->phyregs->miimind & MIIMIND_BUSY) ;
 308
 309         if (0 == relocated)
 310                 relocate_cmds();
 311
 312         /* Get the cmd structure corresponding to the attached
 313          * PHY */
 314         curphy = get_phy_info(dev);
 315
 316         if (curphy == NULL) {
 317                 priv->phyinfo = NULL;
 318                 printf("%s: No PHY found\n", dev->name);
 319
 320                 return 0;
 321         }
 322
 323         priv->phyinfo = curphy;
 324
 325         phy_run_commands(priv, priv->phyinfo->config);
 326
 327         return 1;
 328 }
 329
 330 /*
 331  * Returns which value to write to the control register.
 332  * For 10/100, the value is slightly different
 333  */
 334 uint mii_cr_init(uint mii_reg, struct tsec_private * priv)
 335 {
 336         if (priv->flags & TSEC_GIGABIT)
 337                 return MIIM_CONTROL_INIT;
 338         else
 339                 return MIIM_CR_INIT;
 340 }
 341
 342 /* Parse the status register for link, and then do
 343  * auto-negotiation
 344  */
 345 uint mii_parse_sr(uint mii_reg, struct tsec_private * priv)
 346 {
 347         /*
 348          * Wait if PHY is capable of autonegotiation and autonegotiation
 349          * is not complete.
 350          */
 351         mii_reg = read_phy_reg(priv, MIIM_STATUS);
 352         if ((mii_reg & PHY_BMSR_AUTN_ABLE)
 353             && !(mii_reg & PHY_BMSR_AUTN_COMP)) {
 354                 int i = 0;
 355
 356                 puts("Waiting for PHY auto negotiation to complete");
 357                 while (!((mii_reg & PHY_BMSR_AUTN_COMP)
 358                          && (mii_reg & MIIM_STATUS_LINK))) {
 359                         /*
 360                          * Timeout reached ?
 361                          */
 362                         if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 363                                 puts(" TIMEOUT !\n");
 364                                 priv->link = 0;
 365                                 return 0;
 366                         }
 367
 368                         if ((i++ % 1000) == 0) {
 369                                 putc('.');
 370                         }
 371                         udelay(1000);   /* 1 ms */
 372                         mii_reg = read_phy_reg(priv, MIIM_STATUS);
 373                 }
 374                 puts(" done\n");
 375                 priv->link = 1;
 376                 udelay(500000); /* another 500 ms (results in faster booting) */
 377         } else {
 378                 priv->link = 1;
 379         }
 380
 381         return 0;
 382 }
 383
 384 /* Parse the 88E1011's status register for speed and duplex
 385  * information
 386  */
 387 uint mii_parse_88E1011_psr(uint mii_reg, struct tsec_private * priv)
 388 {
 389         uint speed;
 390
 391         mii_reg = read_phy_reg(priv, MIIM_88E1011_PHY_STATUS);
 392
 393         if (!((mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE) &&
 394               (mii_reg & MIIM_88E1011_PHYSTAT_LINK))) {
 395                 int i = 0;
 396
 397                 puts("Waiting for PHY realtime link");
 398                 while (!((mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE) &&
 399                          (mii_reg & MIIM_88E1011_PHYSTAT_LINK))) {
 400                         /*
 401                          * Timeout reached ?
 402                          */
 403                         if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 404                                 puts(" TIMEOUT !\n");
 405                                 priv->link = 0;
 406                                 break;
 407                         }
 408
 409                         if ((i++ % 1000) == 0) {
 410                                 putc('.');
 411                         }
 412                         udelay(1000);   /* 1 ms */
 413                         mii_reg = read_phy_reg(priv, MIIM_88E1011_PHY_STATUS);
 414                 }
 415                 puts(" done\n");
 416                 udelay(500000); /* another 500 ms (results in faster booting) */
 417         }
 418
 419         if (mii_reg & MIIM_88E1011_PHYSTAT_DUPLEX)
 420                 priv->duplexity = 1;
 421         else
 422                 priv->duplexity = 0;
 423
 424         speed = (mii_reg & MIIM_88E1011_PHYSTAT_SPEED);
 425
 426         switch (speed) {
 427         case MIIM_88E1011_PHYSTAT_GBIT:
 428                 priv->speed = 1000;
 429                 break;
 430         case MIIM_88E1011_PHYSTAT_100:
 431                 priv->speed = 100;
 432                 break;
 433         default:
 434                 priv->speed = 10;
 435         }
 436
 437         return 0;
 438 }
 439
 440 /* Parse the cis8201's status register for speed and duplex
 441  * information
 442  */
 443 uint mii_parse_cis8201(uint mii_reg, struct tsec_private * priv)
 444 {
 445         uint speed;
 446
 447         if (mii_reg & MIIM_CIS8201_AUXCONSTAT_DUPLEX)
 448                 priv->duplexity = 1;
 449         else
 450                 priv->duplexity = 0;
 451
 452         speed = mii_reg & MIIM_CIS8201_AUXCONSTAT_SPEED;
 453         switch (speed) {
 454         case MIIM_CIS8201_AUXCONSTAT_GBIT:
 455                 priv->speed = 1000;
 456                 break;
 457         case MIIM_CIS8201_AUXCONSTAT_100:
 458                 priv->speed = 100;
 459                 break;
 460         default:
 461                 priv->speed = 10;
 462                 break;
 463         }
 464
 465         return 0;
 466 }
 467
 468 /* Parse the vsc8244's status register for speed and duplex
 469  * information
 470  */
 471 uint mii_parse_vsc8244(uint mii_reg, struct tsec_private * priv)
 472 {
 473         uint speed;
 474
 475         if (mii_reg & MIIM_VSC8244_AUXCONSTAT_DUPLEX)
 476                 priv->duplexity = 1;
 477         else
 478                 priv->duplexity = 0;
 479
 480         speed = mii_reg & MIIM_VSC8244_AUXCONSTAT_SPEED;
 481         switch (speed) {
 482         case MIIM_VSC8244_AUXCONSTAT_GBIT:
 483                 priv->speed = 1000;
 484                 break;
 485         case MIIM_VSC8244_AUXCONSTAT_100:
 486                 priv->speed = 100;
 487                 break;
 488         default:
 489                 priv->speed = 10;
 490                 break;
 491         }
 492
 493         return 0;
 494 }
 495
 496 /* Parse the DM9161's status register for speed and duplex
 497  * information
 498  */
 499 uint mii_parse_dm9161_scsr(uint mii_reg, struct tsec_private * priv)
 500 {
 501         if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_100H))
 502                 priv->speed = 100;
 503         else
 504                 priv->speed = 10;
 505
 506         if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_10F))
 507                 priv->duplexity = 1;
 508         else
 509                 priv->duplexity = 0;
 510
 511         return 0;
 512 }
 513
 514 /*
 515  * Hack to write all 4 PHYs with the LED values
 516  */
 517 uint mii_cis8204_fixled(uint mii_reg, struct tsec_private * priv)
 518 {
 519         uint phyid;
 520         volatile tsec_t *regbase = priv->phyregs;
 521         int timeout = 1000000;
 522
 523         for (phyid = 0; phyid < 4; phyid++) {
 524                 regbase->miimadd = (phyid << 8) | mii_reg;
 525                 regbase->miimcon = MIIM_CIS8204_SLEDCON_INIT;
 526                 asm("sync");
 527
 528                 timeout = 1000000;
 529                 while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
 530         }
 531
 532         return MIIM_CIS8204_SLEDCON_INIT;
 533 }
 534
 535 uint mii_cis8204_setmode(uint mii_reg, struct tsec_private * priv)
 536 {
 537         if (priv->flags & TSEC_REDUCED)
 538                 return MIIM_CIS8204_EPHYCON_INIT | MIIM_CIS8204_EPHYCON_RGMII;
 539         else
 540                 return MIIM_CIS8204_EPHYCON_INIT;
 541 }
 542
 543 /* Initialized required registers to appropriate values, zeroing
 544  * those we don't care about (unless zero is bad, in which case,
 545  * choose a more appropriate value)
 546  */
 547 static void init_registers(volatile tsec_t * regs)
 548 {
 549         /* Clear IEVENT */
 550         regs->ievent = IEVENT_INIT_CLEAR;
 551
 552         regs->imask = IMASK_INIT_CLEAR;
 553
 554         regs->hash.iaddr0 = 0;
 555         regs->hash.iaddr1 = 0;
 556         regs->hash.iaddr2 = 0;
 557         regs->hash.iaddr3 = 0;
 558         regs->hash.iaddr4 = 0;
 559         regs->hash.iaddr5 = 0;
 560         regs->hash.iaddr6 = 0;
 561         regs->hash.iaddr7 = 0;
 562
 563         regs->hash.gaddr0 = 0;
 564         regs->hash.gaddr1 = 0;
 565         regs->hash.gaddr2 = 0;
 566         regs->hash.gaddr3 = 0;
 567         regs->hash.gaddr4 = 0;
 568         regs->hash.gaddr5 = 0;
 569         regs->hash.gaddr6 = 0;
 570         regs->hash.gaddr7 = 0;
 571
 572         regs->rctrl = 0x00000000;
 573
 574         /* Init RMON mib registers */
 575         memset((void *)&(regs->rmon), 0, sizeof(rmon_mib_t));
 576
 577         regs->rmon.cam1 = 0xffffffff;
 578         regs->rmon.cam2 = 0xffffffff;
 579
 580         regs->mrblr = MRBLR_INIT_SETTINGS;
 581
 582         regs->minflr = MINFLR_INIT_SETTINGS;
 583
 584         regs->attr = ATTR_INIT_SETTINGS;
 585         regs->attreli = ATTRELI_INIT_SETTINGS;
 586
 587 }
 588
 589 /* Configure maccfg2 based on negotiated speed and duplex
 590  * reported by PHY handling code
 591  */
 592 static void adjust_link(struct eth_device *dev)
 593 {
 594         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 595         volatile tsec_t *regs = priv->regs;
 596
 597         if (priv->link) {
 598                 if (priv->duplexity != 0)
 599                         regs->maccfg2 |= MACCFG2_FULL_DUPLEX;
 600                 else
 601                         regs->maccfg2 &= ~(MACCFG2_FULL_DUPLEX);
 602
 603                 switch (priv->speed) {
 604                 case 1000:
 605                         regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
 606                                          | MACCFG2_GMII);
 607                         break;
 608                 case 100:
 609                 case 10:
 610                         regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
 611                                          | MACCFG2_MII);
 612
 613                         /* Set R100 bit in all modes although
 614                          * it is only used in RGMII mode
 615                          */
 616                         if (priv->speed == 100)
 617                                 regs->ecntrl |= ECNTRL_R100;
 618                         else
 619                                 regs->ecntrl &= ~(ECNTRL_R100);
 620                         break;
 621                 default:
 622                         printf("%s: Speed was bad\n", dev->name);
 623                         break;
 624                 }
 625
 626                 printf("Speed: %d, %s duplex\n", priv->speed,
 627                        (priv->duplexity) ? "full" : "half");
 628
 629         } else {
 630                 printf("%s: No link.\n", dev->name);
 631         }
 632 }
 633
 634 /* Set up the buffers and their descriptors, and bring up the
 635  * interface
 636  */
 637 static void startup_tsec(struct eth_device *dev)
 638 {
 639         int i;
 640         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 641         volatile tsec_t *regs = priv->regs;
 642
 643         /* Point to the buffer descriptors */
 644         regs->tbase = (unsigned int)(&rtx.txbd[txIdx]);
 645         regs->rbase = (unsigned int)(&rtx.rxbd[rxIdx]);
 646
 647         /* Initialize the Rx Buffer descriptors */
 648         for (i = 0; i < PKTBUFSRX; i++) {
 649                 rtx.rxbd[i].status = RXBD_EMPTY;
 650                 rtx.rxbd[i].length = 0;
 651                 rtx.rxbd[i].bufPtr = (uint) NetRxPackets[i];
 652         }
 653         rtx.rxbd[PKTBUFSRX - 1].status |= RXBD_WRAP;
 654
 655         /* Initialize the TX Buffer Descriptors */
 656         for (i = 0; i < TX_BUF_CNT; i++) {
 657                 rtx.txbd[i].status = 0;
 658                 rtx.txbd[i].length = 0;
 659                 rtx.txbd[i].bufPtr = 0;
 660         }
 661         rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP;
 662
 663         /* Start up the PHY */
 664         if(priv->phyinfo)
 665                 phy_run_commands(priv, priv->phyinfo->startup);
 666         adjust_link(dev);
 667
 668         /* Enable Transmit and Receive */
 669         regs->maccfg1 |= (MACCFG1_RX_EN | MACCFG1_TX_EN);
 670
 671         /* Tell the DMA it is clear to go */
 672         regs->dmactrl |= DMACTRL_INIT_SETTINGS;
 673         regs->tstat = TSTAT_CLEAR_THALT;
 674         regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
 675 }
 676
 677 /* This returns the status bits of the device.  The return value
 678  * is never checked, and this is what the 8260 driver did, so we
 679  * do the same.  Presumably, this would be zero if there were no
 680  * errors
 681  */
 682 static int tsec_send(struct eth_device *dev, volatile void *packet, int length)
 683 {
 684         int i;
 685         int result = 0;
 686         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 687         volatile tsec_t *regs = priv->regs;
 688
 689         /* Find an empty buffer descriptor */
 690         for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
 691                 if (i >= TOUT_LOOP) {
 692                         debug("%s: tsec: tx buffers full\n", dev->name);
 693                         return result;
 694                 }
 695         }
 696
 697         rtx.txbd[txIdx].bufPtr = (uint) packet;
 698         rtx.txbd[txIdx].length = length;
 699         rtx.txbd[txIdx].status |=
 700             (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT);
 701
 702         /* Tell the DMA to go */
 703         regs->tstat = TSTAT_CLEAR_THALT;
 704
 705         /* Wait for buffer to be transmitted */
 706         for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
 707                 if (i >= TOUT_LOOP) {
 708                         debug("%s: tsec: tx error\n", dev->name);
 709                         return result;
 710                 }
 711         }
 712
 713         txIdx = (txIdx + 1) % TX_BUF_CNT;
 714         result = rtx.txbd[txIdx].status & TXBD_STATS;
 715
 716         return result;
 717 }
 718
 719 static int tsec_recv(struct eth_device *dev)
 720 {
 721         int length;
 722         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 723         volatile tsec_t *regs = priv->regs;
 724
 725         while (!(rtx.rxbd[rxIdx].status & RXBD_EMPTY)) {
 726
 727                 length = rtx.rxbd[rxIdx].length;
 728
 729                 /* Send the packet up if there were no errors */
 730                 if (!(rtx.rxbd[rxIdx].status & RXBD_STATS)) {
 731                         NetReceive(NetRxPackets[rxIdx], length - 4);
 732                 } else {
 733                         printf("Got error %x\n",
 734                                (rtx.rxbd[rxIdx].status & RXBD_STATS));
 735                 }
 736
 737                 rtx.rxbd[rxIdx].length = 0;
 738
 739                 /* Set the wrap bit if this is the last element in the list */
 740                 rtx.rxbd[rxIdx].status =
 741                     RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0);
 742
 743                 rxIdx = (rxIdx + 1) % PKTBUFSRX;
 744         }
 745
 746         if (regs->ievent & IEVENT_BSY) {
 747                 regs->ievent = IEVENT_BSY;
 748                 regs->rstat = RSTAT_CLEAR_RHALT;
 749         }
 750
 751         return -1;
 752
 753 }
 754
 755 /* Stop the interface */
 756 static void tsec_halt(struct eth_device *dev)
 757 {
 758         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 759         volatile tsec_t *regs = priv->regs;
 760
 761         regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
 762         regs->dmactrl |= (DMACTRL_GRS | DMACTRL_GTS);
 763
 764         while (!(regs->ievent & (IEVENT_GRSC | IEVENT_GTSC))) ;
 765
 766         regs->maccfg1 &= ~(MACCFG1_TX_EN | MACCFG1_RX_EN);
 767
 768         /* Shut down the PHY, as needed */
 769         if(priv->phyinfo)
 770                 phy_run_commands(priv, priv->phyinfo->shutdown);
 771 }
 772
 773 struct phy_info phy_info_M88E1011S = {
 774         0x01410c6,
 775         "Marvell 88E1011S",
 776         4,
 777         (struct phy_cmd[]){     /* config */
 778                            /* Reset and configure the PHY */
 779                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 780                            {0x1d, 0x1f, NULL},
 781                            {0x1e, 0x200c, NULL},
 782                            {0x1d, 0x5, NULL},
 783                            {0x1e, 0x0, NULL},
 784                            {0x1e, 0x100, NULL},
 785                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 786                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 787                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 788                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 789                            {miim_end,}
 790                            },
 791         (struct phy_cmd[]){     /* startup */
 792                            /* Status is read once to clear old link state */
 793                            {MIIM_STATUS, miim_read, NULL},
 794                            /* Auto-negotiate */
 795                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 796                            /* Read the status */
 797                            {MIIM_88E1011_PHY_STATUS, miim_read,
 798                             &mii_parse_88E1011_psr},
 799                            {miim_end,}
 800                            },
 801         (struct phy_cmd[]){     /* shutdown */
 802                            {miim_end,}
 803                            },
 804 };
 805
 806 struct phy_info phy_info_M88E1111S = {
 807         0x01410cc,
 808         "Marvell 88E1111S",
 809         4,
 810         (struct phy_cmd[]){     /* config */
 811                            /* Reset and configure the PHY */
 812                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 813                            {0x1d, 0x1f, NULL},
 814                            {0x1e, 0x200c, NULL},
 815                            {0x1d, 0x5, NULL},
 816                            {0x1e, 0x0, NULL},
 817                            {0x1e, 0x100, NULL},
 818                            {0x14, 0x0cd2, NULL}, /* Delay RGMII TX and RX */
 819                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 820                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 821                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 822                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 823                            {miim_end,}
 824                            },
 825         (struct phy_cmd[]){     /* startup */
 826                            /* Status is read once to clear old link state */
 827                            {MIIM_STATUS, miim_read, NULL},
 828                            /* Auto-negotiate */
 829                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 830                            /* Read the status */
 831                            {MIIM_88E1011_PHY_STATUS, miim_read,
 832                             &mii_parse_88E1011_psr},
 833                            {miim_end,}
 834                            },
 835         (struct phy_cmd[]){     /* shutdown */
 836                            {miim_end,}
 837                            },
 838 };
 839
 840 static unsigned int m88e1145_setmode(uint mii_reg, struct tsec_private *priv)
 841 {
 842         uint mii_data = read_phy_reg(priv, mii_reg);
 843
 844         /* Setting MIIM_88E1145_PHY_EXT_CR */
 845         if (priv->flags & TSEC_REDUCED)
 846                 return mii_data |
 847                     MIIM_M88E1145_RGMII_RX_DELAY | MIIM_M88E1145_RGMII_TX_DELAY;
 848         else
 849                 return mii_data;
 850 }
 851
 852 static struct phy_info phy_info_M88E1145 = {
 853         0x01410cd,
 854         "Marvell 88E1145",
 855         4,
 856         (struct phy_cmd[]){     /* config */
 857                            /* Errata E0, E1 */
 858                            {29, 0x001b, NULL},
 859                            {30, 0x418f, NULL},
 860                            {29, 0x0016, NULL},
 861                            {30, 0xa2da, NULL},
 862
 863                            /* Reset and configure the PHY */
 864                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 865                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 866                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 867                            {MIIM_88E1011_PHY_SCR, MIIM_88E1011_PHY_MDI_X_AUTO,
 868                             NULL},
 869                            {MIIM_88E1145_PHY_EXT_CR, 0, &m88e1145_setmode},
 870                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 871                            {MIIM_CONTROL, MIIM_CONTROL_INIT, NULL},
 872                            {miim_end,}
 873                            },
 874         (struct phy_cmd[]){     /* startup */
 875                            /* Status is read once to clear old link state */
 876                            {MIIM_STATUS, miim_read, NULL},
 877                            /* Auto-negotiate */
 878                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 879                            {MIIM_88E1111_PHY_LED_CONTROL,
 880                             MIIM_88E1111_PHY_LED_DIRECT, NULL},
 881                            /* Read the Status */
 882                            {MIIM_88E1011_PHY_STATUS, miim_read,
 883                             &mii_parse_88E1011_psr},
 884                            {miim_end,}
 885                            },
 886         (struct phy_cmd[]){     /* shutdown */
 887                            {miim_end,}
 888                            },
 889 };
 890
 891 struct phy_info phy_info_cis8204 = {
 892         0x3f11,
 893         "Cicada Cis8204",
 894         6,
 895         (struct phy_cmd[]){     /* config */
 896                            /* Override PHY config settings */
 897                            {MIIM_CIS8201_AUX_CONSTAT,
 898                             MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
 899                            /* Configure some basic stuff */
 900                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 901                            {MIIM_CIS8204_SLED_CON, MIIM_CIS8204_SLEDCON_INIT,
 902                             &mii_cis8204_fixled},
 903                            {MIIM_CIS8204_EPHY_CON, MIIM_CIS8204_EPHYCON_INIT,
 904                             &mii_cis8204_setmode},
 905                            {miim_end,}
 906                            },
 907         (struct phy_cmd[]){     /* startup */
 908                            /* Read the Status (2x to make sure link is right) */
 909                            {MIIM_STATUS, miim_read, NULL},
 910                            /* Auto-negotiate */
 911                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 912                            /* Read the status */
 913                            {MIIM_CIS8201_AUX_CONSTAT, miim_read,
 914                             &mii_parse_cis8201},
 915                            {miim_end,}
 916                            },
 917         (struct phy_cmd[]){     /* shutdown */
 918                            {miim_end,}
 919                            },
 920 };
 921
 922 /* Cicada 8201 */
 923 struct phy_info phy_info_cis8201 = {
 924         0xfc41,
 925         "CIS8201",
 926         4,
 927         (struct phy_cmd[]){     /* config */
 928                            /* Override PHY config settings */
 929                            {MIIM_CIS8201_AUX_CONSTAT,
 930                             MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
 931                            /* Set up the interface mode */
 932                            {MIIM_CIS8201_EXT_CON1, MIIM_CIS8201_EXTCON1_INIT,
 933                             NULL},
 934                            /* Configure some basic stuff */
 935                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 936                            {miim_end,}
 937                            },
 938         (struct phy_cmd[]){     /* startup */
 939                            /* Read the Status (2x to make sure link is right) */
 940                            {MIIM_STATUS, miim_read, NULL},
 941                            /* Auto-negotiate */
 942                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 943                            /* Read the status */
 944                            {MIIM_CIS8201_AUX_CONSTAT, miim_read,
 945                             &mii_parse_cis8201},
 946                            {miim_end,}
 947                            },
 948         (struct phy_cmd[]){     /* shutdown */
 949                            {miim_end,}
 950                            },
 951 };
 952 struct phy_info phy_info_VSC8244 = {
 953         0x3f1b,
 954         "Vitesse VSC8244",
 955         6,
 956         (struct phy_cmd[]){     /* config */
 957                            /* Override PHY config settings */
 958                            /* Configure some basic stuff */
 959                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 960                            {miim_end,}
 961                            },
 962         (struct phy_cmd[]){     /* startup */
 963                            /* Read the Status (2x to make sure link is right) */
 964                            {MIIM_STATUS, miim_read, NULL},
 965                            /* Auto-negotiate */
 966                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 967                            /* Read the status */
 968                            {MIIM_VSC8244_AUX_CONSTAT, miim_read,
 969                             &mii_parse_vsc8244},
 970                            {miim_end,}
 971                            },
 972         (struct phy_cmd[]){     /* shutdown */
 973                            {miim_end,}
 974                            },
 975 };
 976
 977 struct phy_info phy_info_dm9161 = {
 978         0x0181b88,
 979         "Davicom DM9161E",
 980         4,
 981         (struct phy_cmd[]){     /* config */
 982                            {MIIM_CONTROL, MIIM_DM9161_CR_STOP, NULL},
 983                            /* Do not bypass the scrambler/descrambler */
 984                            {MIIM_DM9161_SCR, MIIM_DM9161_SCR_INIT, NULL},
 985                            /* Clear 10BTCSR to default */
 986                            {MIIM_DM9161_10BTCSR, MIIM_DM9161_10BTCSR_INIT,
 987                             NULL},
 988                            /* Configure some basic stuff */
 989                            {MIIM_CONTROL, MIIM_CR_INIT, NULL},
 990                            /* Restart Auto Negotiation */
 991                            {MIIM_CONTROL, MIIM_DM9161_CR_RSTAN, NULL},
 992                            {miim_end,}
 993                            },
 994         (struct phy_cmd[]){     /* startup */
 995                            /* Status is read once to clear old link state */
 996                            {MIIM_STATUS, miim_read, NULL},
 997                            /* Auto-negotiate */
 998                            {MIIM_STATUS, miim_read, &mii_parse_sr},
 999                            /* Read the status */
1000                            {MIIM_DM9161_SCSR, miim_read,
1001                             &mii_parse_dm9161_scsr},
1002                            {miim_end,}
1003                            },
1004         (struct phy_cmd[]){     /* shutdown */
1005                            {miim_end,}
1006                            },
1007 };
1008
1009 uint mii_parse_lxt971_sr2(uint mii_reg, struct tsec_private *priv)
1010 {
1011         unsigned int speed;
1012         if (priv->link) {
1013                 speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
1014
1015                 switch (speed) {
1016                 case MIIM_LXT971_SR2_10HDX:
1017                         priv->speed = 10;
1018                         priv->duplexity = 0;
1019                         break;
1020                 case MIIM_LXT971_SR2_10FDX:
1021                         priv->speed = 10;
1022                         priv->duplexity = 1;
1023                         break;
1024                 case MIIM_LXT971_SR2_100HDX:
1025                         priv->speed = 100;
1026                         priv->duplexity = 0;
1027                 default:
1028                         priv->speed = 100;
1029                         priv->duplexity = 1;
1030                         break;
1031                 }
1032         } else {
1033                 priv->speed = 0;
1034                 priv->duplexity = 0;
1035         }
1036
1037         return 0;
1038 }
1039
1040 static struct phy_info phy_info_lxt971 = {
1041         0x0001378e,
1042         "LXT971",
1043         4,
1044         (struct phy_cmd[]){     /* config */
1045                            {MIIM_CR, MIIM_CR_INIT, mii_cr_init},        /* autonegotiate */
1046                            {miim_end,}
1047                            },
1048         (struct phy_cmd[]){     /* startup - enable interrupts */
1049                            /* { 0x12, 0x00f2, NULL }, */
1050                            {MIIM_STATUS, miim_read, NULL},
1051                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1052                            {MIIM_LXT971_SR2, miim_read, &mii_parse_lxt971_sr2},
1053                            {miim_end,}
1054                            },
1055         (struct phy_cmd[]){     /* shutdown - disable interrupts */
1056                            {miim_end,}
1057                            },
1058 };
1059
1060 /* Parse the DP83865's link and auto-neg status register for speed and duplex
1061  * information
1062  */
1063 uint mii_parse_dp83865_lanr(uint mii_reg, struct tsec_private *priv)
1064 {
1065         switch (mii_reg & MIIM_DP83865_SPD_MASK) {
1066
1067         case MIIM_DP83865_SPD_1000:
1068                 priv->speed = 1000;
1069                 break;
1070
1071         case MIIM_DP83865_SPD_100:
1072                 priv->speed = 100;
1073                 break;
1074
1075         default:
1076                 priv->speed = 10;
1077                 break;
1078
1079         }
1080
1081         if (mii_reg & MIIM_DP83865_DPX_FULL)
1082                 priv->duplexity = 1;
1083         else
1084                 priv->duplexity = 0;
1085
1086         return 0;
1087 }
1088
1089 struct phy_info phy_info_dp83865 = {
1090         0x20005c7,
1091         "NatSemi DP83865",
1092         4,
1093         (struct phy_cmd[]){     /* config */
1094                            {MIIM_CONTROL, MIIM_DP83865_CR_INIT, NULL},
1095                            {miim_end,}
1096                            },
1097         (struct phy_cmd[]){     /* startup */
1098                            /* Status is read once to clear old link state */
1099                            {MIIM_STATUS, miim_read, NULL},
1100                            /* Auto-negotiate */
1101                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1102                            /* Read the link and auto-neg status */
1103                            {MIIM_DP83865_LANR, miim_read,
1104                             &mii_parse_dp83865_lanr},
1105                            {miim_end,}
1106                            },
1107         (struct phy_cmd[]){     /* shutdown */
1108                            {miim_end,}
1109                            },
1110 };
1111
1112 struct phy_info *phy_info[] = {
1113         &phy_info_cis8204,
1114         &phy_info_cis8201,
1115         &phy_info_M88E1011S,
1116         &phy_info_M88E1111S,
1117         &phy_info_M88E1145,
1118         &phy_info_dm9161,
1119         &phy_info_lxt971,
1120         &phy_info_VSC8244,
1121         &phy_info_dp83865,
1122         NULL
1123 };
1124
1125 /* Grab the identifier of the device's PHY, and search through
1126  * all of the known PHYs to see if one matches.  If so, return
1127  * it, if not, return NULL
1128  */
1129 struct phy_info *get_phy_info(struct eth_device *dev)
1130 {
1131         struct tsec_private *priv = (struct tsec_private *)dev->priv;
1132         uint phy_reg, phy_ID;
1133         int i;
1134         struct phy_info *theInfo = NULL;
1135
1136         /* Grab the bits from PHYIR1, and put them in the upper half */
1137         phy_reg = read_phy_reg(priv, MIIM_PHYIR1);
1138         phy_ID = (phy_reg & 0xffff) << 16;
1139
1140         /* Grab the bits from PHYIR2, and put them in the lower half */
1141         phy_reg = read_phy_reg(priv, MIIM_PHYIR2);
1142         phy_ID |= (phy_reg & 0xffff);
1143
1144         /* loop through all the known PHY types, and find one that */
1145         /* matches the ID we read from the PHY. */
1146         for (i = 0; phy_info[i]; i++) {
1147                 if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift))
1148                         theInfo = phy_info[i];
1149         }
1150
1151         if (theInfo == NULL) {
1152                 printf("%s: PHY id %x is not supported!\n", dev->name, phy_ID);
1153                 return NULL;
1154         } else {
1155                 debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
1156         }
1157
1158         return theInfo;
1159 }
1160
1161 /* Execute the given series of commands on the given device's
1162  * PHY, running functions as necessary
1163  */
1164 void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd)
1165 {
1166         int i;
1167         uint result;
1168         volatile tsec_t *phyregs = priv->phyregs;
1169
1170         phyregs->miimcfg = MIIMCFG_RESET;
1171
1172         phyregs->miimcfg = MIIMCFG_INIT_VALUE;
1173
1174         while (phyregs->miimind & MIIMIND_BUSY) ;
1175
1176         for (i = 0; cmd->mii_reg != miim_end; i++) {
1177                 if (cmd->mii_data == miim_read) {
1178                         result = read_phy_reg(priv, cmd->mii_reg);
1179
1180                         if (cmd->funct != NULL)
1181                                 (*(cmd->funct)) (result, priv);
1182
1183                 } else {
1184                         if (cmd->funct != NULL)
1185                                 result = (*(cmd->funct)) (cmd->mii_reg, priv);
1186                         else
1187                                 result = cmd->mii_data;
1188
1189                         write_phy_reg(priv, cmd->mii_reg, result);
1190
1191                 }
1192                 cmd++;
1193         }
1194 }
1195
1196 /* Relocate the function pointers in the phy cmd lists */
1197 static void relocate_cmds(void)
1198 {
1199         struct phy_cmd **cmdlistptr;
1200         struct phy_cmd *cmd;
1201         int i, j, k;
1202
1203         for (i = 0; phy_info[i]; i++) {
1204                 /* First thing's first: relocate the pointers to the
1205                  * PHY command structures (the structs were done) */
1206                 phy_info[i] = (struct phy_info *)((uint) phy_info[i]
1207                                                   + gd->reloc_off);
1208                 phy_info[i]->name += gd->reloc_off;
1209                 phy_info[i]->config =
1210                     (struct phy_cmd *)((uint) phy_info[i]->config
1211                                        + gd->reloc_off);
1212                 phy_info[i]->startup =
1213                     (struct phy_cmd *)((uint) phy_info[i]->startup
1214                                        + gd->reloc_off);
1215                 phy_info[i]->shutdown =
1216                     (struct phy_cmd *)((uint) phy_info[i]->shutdown
1217                                        + gd->reloc_off);
1218
1219                 cmdlistptr = &phy_info[i]->config;
1220                 j = 0;
1221                 for (; cmdlistptr <= &phy_info[i]->shutdown; cmdlistptr++) {
1222                         k = 0;
1223                         for (cmd = *cmdlistptr;
1224                              cmd->mii_reg != miim_end;
1225                              cmd++) {
1226                                 /* Only relocate non-NULL pointers */
1227                                 if (cmd->funct)
1228                                         cmd->funct += gd->reloc_off;
1229
1230                                 k++;
1231                         }
1232                         j++;
1233                 }
1234         }
1235
1236         relocated = 1;
1237 }
1238
1239 #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) \
1240         && !defined(BITBANGMII)
1241
1242 struct tsec_private *get_priv_for_phy(unsigned char phyaddr)
1243 {
1244         int i;
1245
1246         for (i = 0; i < MAXCONTROLLERS; i++) {
1247                 if (privlist[i]->phyaddr == phyaddr)
1248                         return privlist[i];
1249         }
1250
1251         return NULL;
1252 }
1253
1254 /*
1255  * Read a MII PHY register.
1256  *
1257  * Returns:
1258  *  0 on success
1259  */
1260 static int tsec_miiphy_read(char *devname, unsigned char addr,
1261                             unsigned char reg, unsigned short *value)
1262 {
1263         unsigned short ret;
1264         struct tsec_private *priv = get_priv_for_phy(addr);
1265
1266         if (NULL == priv) {
1267                 printf("Can't read PHY at address %d\n", addr);
1268                 return -1;
1269         }
1270
1271         ret = (unsigned short)read_phy_reg(priv, reg);
1272         *value = ret;
1273
1274         return 0;
1275 }
1276
1277 /*
1278  * Write a MII PHY register.
1279  *
1280  * Returns:
1281  *  0 on success
1282  */
1283 static int tsec_miiphy_write(char *devname, unsigned char addr,
1284                              unsigned char reg, unsigned short value)
1285 {
1286         struct tsec_private *priv = get_priv_for_phy(addr);
1287
1288         if (NULL == priv) {
1289                 printf("Can't write PHY at address %d\n", addr);
1290                 return -1;
1291         }
1292
1293         write_phy_reg(priv, reg, value);
1294
1295         return 0;
1296 }
1297
1298 #endif /* defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
1299                 && !defined(BITBANGMII) */
1300
1301 #endif /* CONFIG_TSEC_ENET */