drivers/net/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, 2007 Freescale Semiconductor, Inc.
   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 #ifdef CONFIG_TSEC1
  69         {TSEC1_PHY_ADDR, TSEC1_FLAGS, TSEC1_PHYIDX},
  70 #else
  71         {0, 0, 0},
  72 #endif
  73 #ifdef CONFIG_TSEC2
  74         {TSEC2_PHY_ADDR, TSEC2_FLAGS, TSEC2_PHYIDX},
  75 #else
  76         {0, 0, 0},
  77 #endif
  78 #ifdef CONFIG_MPC85XX_FEC
  79         {FEC_PHY_ADDR, FEC_FLAGS, FEC_PHYIDX},
  80 #else
  81 #ifdef CONFIG_TSEC3
  82         {TSEC3_PHY_ADDR, TSEC3_FLAGS, TSEC3_PHYIDX},
  83 #else
  84         {0, 0, 0},
  85 #endif
  86 #ifdef CONFIG_TSEC4
  87         {TSEC4_PHY_ADDR, TSEC4_FLAGS, TSEC4_PHYIDX},
  88 #else
  89         {0, 0, 0},
  90 #endif  /* CONFIG_TSEC4 */
  91 #endif  /* CONFIG_MPC85XX_FEC */
  92 };
  93
  94 #define MAXCONTROLLERS  (4)
  95
  96 static int relocated = 0;
  97
  98 static struct tsec_private *privlist[MAXCONTROLLERS];
  99
 100 #ifdef __GNUC__
 101 static RTXBD rtx __attribute__ ((aligned(8)));
 102 #else
 103 #error "rtx must be 64-bit aligned"
 104 #endif
 105
 106 static int tsec_send(struct eth_device *dev,
 107                      volatile void *packet, int length);
 108 static int tsec_recv(struct eth_device *dev);
 109 static int tsec_init(struct eth_device *dev, bd_t * bd);
 110 static void tsec_halt(struct eth_device *dev);
 111 static void init_registers(volatile tsec_t * regs);
 112 static void startup_tsec(struct eth_device *dev);
 113 static int init_phy(struct eth_device *dev);
 114 void write_phy_reg(struct tsec_private *priv, uint regnum, uint value);
 115 uint read_phy_reg(struct tsec_private *priv, uint regnum);
 116 struct phy_info *get_phy_info(struct eth_device *dev);
 117 void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd);
 118 static void adjust_link(struct eth_device *dev);
 119 static void relocate_cmds(void);
 120 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
 121         && !defined(BITBANGMII)
 122 static int tsec_miiphy_write(char *devname, unsigned char addr,
 123                              unsigned char reg, unsigned short value);
 124 static int tsec_miiphy_read(char *devname, unsigned char addr,
 125                             unsigned char reg, unsigned short *value);
 126 #endif
 127 #ifdef CONFIG_MCAST_TFTP
 128 static int tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set);
 129 #endif
 130
 131 /* Initialize device structure. Returns success if PHY
 132  * initialization succeeded (i.e. if it recognizes the PHY)
 133  */
 134 int tsec_initialize(bd_t * bis, int index, char *devname)
 135 {
 136         struct eth_device *dev;
 137         int i;
 138         struct tsec_private *priv;
 139
 140         dev = (struct eth_device *)malloc(sizeof *dev);
 141
 142         if (NULL == dev)
 143                 return 0;
 144
 145         memset(dev, 0, sizeof *dev);
 146
 147         priv = (struct tsec_private *)malloc(sizeof(*priv));
 148
 149         if (NULL == priv)
 150                 return 0;
 151
 152         privlist[index] = priv;
 153         priv->regs = (volatile tsec_t *)(TSEC_BASE_ADDR + index * TSEC_SIZE);
 154         priv->phyregs = (volatile tsec_t *)(TSEC_BASE_ADDR +
 155                                             tsec_info[index].phyregidx *
 156                                             TSEC_SIZE);
 157
 158         priv->phyaddr = tsec_info[index].phyaddr;
 159         priv->flags = tsec_info[index].flags;
 160
 161         sprintf(dev->name, devname);
 162         dev->iobase = 0;
 163         dev->priv = priv;
 164         dev->init = tsec_init;
 165         dev->halt = tsec_halt;
 166         dev->send = tsec_send;
 167         dev->recv = tsec_recv;
 168 #ifdef CONFIG_MCAST_TFTP
 169         dev->mcast = tsec_mcast_addr;
 170 #endif
 171
 172         /* Tell u-boot to get the addr from the env */
 173         for (i = 0; i < 6; i++)
 174                 dev->enetaddr[i] = 0;
 175
 176         eth_register(dev);
 177
 178         /* Reset the MAC */
 179         priv->regs->maccfg1 |= MACCFG1_SOFT_RESET;
 180         priv->regs->maccfg1 &= ~(MACCFG1_SOFT_RESET);
 181
 182 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
 183         && !defined(BITBANGMII)
 184         miiphy_register(dev->name, tsec_miiphy_read, tsec_miiphy_write);
 185 #endif
 186
 187         /* Try to initialize PHY here, and return */
 188         return init_phy(dev);
 189 }
 190
 191 /* Initializes data structures and registers for the controller,
 192  * and brings the interface up.  Returns the link status, meaning
 193  * that it returns success if the link is up, failure otherwise.
 194  * This allows u-boot to find the first active controller.
 195  */
 196 int tsec_init(struct eth_device *dev, bd_t * bd)
 197 {
 198         uint tempval;
 199         char tmpbuf[MAC_ADDR_LEN];
 200         int i;
 201         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 202         volatile tsec_t *regs = priv->regs;
 203
 204         /* Make sure the controller is stopped */
 205         tsec_halt(dev);
 206
 207         /* Init MACCFG2.  Defaults to GMII */
 208         regs->maccfg2 = MACCFG2_INIT_SETTINGS;
 209
 210         /* Init ECNTRL */
 211         regs->ecntrl = ECNTRL_INIT_SETTINGS;
 212
 213         /* Copy the station address into the address registers.
 214          * Backwards, because little endian MACS are dumb */
 215         for (i = 0; i < MAC_ADDR_LEN; i++) {
 216                 tmpbuf[MAC_ADDR_LEN - 1 - i] = dev->enetaddr[i];
 217         }
 218         regs->macstnaddr1 = *((uint *) (tmpbuf));
 219
 220         tempval = *((uint *) (tmpbuf + 4));
 221
 222         regs->macstnaddr2 = tempval;
 223
 224         /* reset the indices to zero */
 225         rxIdx = 0;
 226         txIdx = 0;
 227
 228         /* Clear out (for the most part) the other registers */
 229         init_registers(regs);
 230
 231         /* Ready the device for tx/rx */
 232         startup_tsec(dev);
 233
 234         /* If there's no link, fail */
 235         return (priv->link ? 0 : -1);
 236
 237 }
 238
 239 /* Write value to the device's PHY through the registers
 240  * specified in priv, modifying the register specified in regnum.
 241  * It will wait for the write to be done (or for a timeout to
 242  * expire) before exiting
 243  */
 244 void write_phy_reg(struct tsec_private *priv, uint regnum, uint value)
 245 {
 246         volatile tsec_t *regbase = priv->phyregs;
 247         uint phyid = priv->phyaddr;
 248         int timeout = 1000000;
 249
 250         regbase->miimadd = (phyid << 8) | regnum;
 251         regbase->miimcon = value;
 252         asm("sync");
 253
 254         timeout = 1000000;
 255         while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
 256 }
 257
 258 /* Reads register regnum on the device's PHY through the
 259  * registers specified in priv.  It lowers and raises the read
 260  * command, and waits for the data to become valid (miimind
 261  * notvalid bit cleared), and the bus to cease activity (miimind
 262  * busy bit cleared), and then returns the value
 263  */
 264 uint read_phy_reg(struct tsec_private *priv, uint regnum)
 265 {
 266         uint value;
 267         volatile tsec_t *regbase = priv->phyregs;
 268         uint phyid = priv->phyaddr;
 269
 270         /* Put the address of the phy, and the register
 271          * number into MIIMADD */
 272         regbase->miimadd = (phyid << 8) | regnum;
 273
 274         /* Clear the command register, and wait */
 275         regbase->miimcom = 0;
 276         asm("sync");
 277
 278         /* Initiate a read command, and wait */
 279         regbase->miimcom = MIIM_READ_COMMAND;
 280         asm("sync");
 281
 282         /* Wait for the the indication that the read is done */
 283         while ((regbase->miimind & (MIIMIND_NOTVALID | MIIMIND_BUSY))) ;
 284
 285         /* Grab the value read from the PHY */
 286         value = regbase->miimstat;
 287
 288         return value;
 289 }
 290
 291 /* Discover which PHY is attached to the device, and configure it
 292  * properly.  If the PHY is not recognized, then return 0
 293  * (failure).  Otherwise, return 1
 294  */
 295 static int init_phy(struct eth_device *dev)
 296 {
 297         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 298         struct phy_info *curphy;
 299         volatile tsec_t *regs = (volatile tsec_t *)(TSEC_BASE_ADDR);
 300
 301         /* Assign a Physical address to the TBI */
 302         regs->tbipa = CFG_TBIPA_VALUE;
 303         regs = (volatile tsec_t *)(TSEC_BASE_ADDR + TSEC_SIZE);
 304         regs->tbipa = CFG_TBIPA_VALUE;
 305         asm("sync");
 306
 307         /* Reset MII (due to new addresses) */
 308         priv->phyregs->miimcfg = MIIMCFG_RESET;
 309         asm("sync");
 310         priv->phyregs->miimcfg = MIIMCFG_INIT_VALUE;
 311         asm("sync");
 312         while (priv->phyregs->miimind & MIIMIND_BUSY) ;
 313
 314         if (0 == relocated)
 315                 relocate_cmds();
 316
 317         /* Get the cmd structure corresponding to the attached
 318          * PHY */
 319         curphy = get_phy_info(dev);
 320
 321         if (curphy == NULL) {
 322                 priv->phyinfo = NULL;
 323                 printf("%s: No PHY found\n", dev->name);
 324
 325                 return 0;
 326         }
 327
 328         priv->phyinfo = curphy;
 329
 330         phy_run_commands(priv, priv->phyinfo->config);
 331
 332         return 1;
 333 }
 334
 335 /*
 336  * Returns which value to write to the control register.
 337  * For 10/100, the value is slightly different
 338  */
 339 uint mii_cr_init(uint mii_reg, struct tsec_private * priv)
 340 {
 341         if (priv->flags & TSEC_GIGABIT)
 342                 return MIIM_CONTROL_INIT;
 343         else
 344                 return MIIM_CR_INIT;
 345 }
 346
 347 /* Parse the status register for link, and then do
 348  * auto-negotiation
 349  */
 350 uint mii_parse_sr(uint mii_reg, struct tsec_private * priv)
 351 {
 352         /*
 353          * Wait if the link is up, and autonegotiation is in progress
 354          * (ie - we're capable and it's not done)
 355          */
 356         mii_reg = read_phy_reg(priv, MIIM_STATUS);
 357         if ((mii_reg & MIIM_STATUS_LINK) && (mii_reg & PHY_BMSR_AUTN_ABLE)
 358             && !(mii_reg & PHY_BMSR_AUTN_COMP)) {
 359                 int i = 0;
 360
 361                 puts("Waiting for PHY auto negotiation to complete");
 362                 while (!(mii_reg & PHY_BMSR_AUTN_COMP)) {
 363                         /*
 364                          * Timeout reached ?
 365                          */
 366                         if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 367                                 puts(" TIMEOUT !\n");
 368                                 priv->link = 0;
 369                                 return 0;
 370                         }
 371
 372                         if ((i++ % 1000) == 0) {
 373                                 putc('.');
 374                         }
 375                         udelay(1000);   /* 1 ms */
 376                         mii_reg = read_phy_reg(priv, MIIM_STATUS);
 377                 }
 378                 puts(" done\n");
 379                 priv->link = 1;
 380                 udelay(500000); /* another 500 ms (results in faster booting) */
 381         } else {
 382                 if (mii_reg & MIIM_STATUS_LINK)
 383                         priv->link = 1;
 384                 else
 385                         priv->link = 0;
 386         }
 387
 388         return 0;
 389 }
 390
 391 /* Generic function which updates the speed and duplex.  If
 392  * autonegotiation is enabled, it uses the AND of the link
 393  * partner's advertised capabilities and our advertised
 394  * capabilities.  If autonegotiation is disabled, we use the
 395  * appropriate bits in the control register.
 396  *
 397  * Stolen from Linux's mii.c and phy_device.c
 398  */
 399 uint mii_parse_link(uint mii_reg, struct tsec_private *priv)
 400 {
 401         /* We're using autonegotiation */
 402         if (mii_reg & PHY_BMSR_AUTN_ABLE) {
 403                 uint lpa = 0;
 404                 uint gblpa = 0;
 405
 406                 /* Check for gigabit capability */
 407                 if (mii_reg & PHY_BMSR_EXT) {
 408                         /* We want a list of states supported by
 409                          * both PHYs in the link
 410                          */
 411                         gblpa = read_phy_reg(priv, PHY_1000BTSR);
 412                         gblpa &= read_phy_reg(priv, PHY_1000BTCR) << 2;
 413                 }
 414
 415                 /* Set the baseline so we only have to set them
 416                  * if they're different
 417                  */
 418                 priv->speed = 10;
 419                 priv->duplexity = 0;
 420
 421                 /* Check the gigabit fields */
 422                 if (gblpa & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) {
 423                         priv->speed = 1000;
 424
 425                         if (gblpa & PHY_1000BTSR_1000FD)
 426                                 priv->duplexity = 1;
 427
 428                         /* We're done! */
 429                         return 0;
 430                 }
 431
 432                 lpa = read_phy_reg(priv, PHY_ANAR);
 433                 lpa &= read_phy_reg(priv, PHY_ANLPAR);
 434
 435                 if (lpa & (PHY_ANLPAR_TXFD | PHY_ANLPAR_TX)) {
 436                         priv->speed = 100;
 437
 438                         if (lpa & PHY_ANLPAR_TXFD)
 439                                 priv->duplexity = 1;
 440
 441                 } else if (lpa & PHY_ANLPAR_10FD)
 442                         priv->duplexity = 1;
 443         } else {
 444                 uint bmcr = read_phy_reg(priv, PHY_BMCR);
 445
 446                 priv->speed = 10;
 447                 priv->duplexity = 0;
 448
 449                 if (bmcr & PHY_BMCR_DPLX)
 450                         priv->duplexity = 1;
 451
 452                 if (bmcr & PHY_BMCR_1000_MBPS)
 453                         priv->speed = 1000;
 454                 else if (bmcr & PHY_BMCR_100_MBPS)
 455                         priv->speed = 100;
 456         }
 457
 458         return 0;
 459 }
 460
 461 /*
 462  * Parse the BCM54xx status register for speed and duplex information.
 463  * The linux sungem_phy has this information, but in a table format.
 464  */
 465 uint mii_parse_BCM54xx_sr(uint mii_reg, struct tsec_private *priv)
 466 {
 467
 468         switch((mii_reg & MIIM_BCM54xx_AUXSTATUS_LINKMODE_MASK) >> MIIM_BCM54xx_AUXSTATUS_LINKMODE_SHIFT){
 469
 470                 case 1:
 471                         printf("Enet starting in 10BT/HD\n");
 472                         priv->duplexity = 0;
 473                         priv->speed = 10;
 474                         break;
 475
 476                 case 2:
 477                         printf("Enet starting in 10BT/FD\n");
 478                         priv->duplexity = 1;
 479                         priv->speed = 10;
 480                         break;
 481
 482                 case 3:
 483                         printf("Enet starting in 100BT/HD\n");
 484                         priv->duplexity = 0;
 485                         priv->speed = 100;
 486                         break;
 487
 488                 case 5:
 489                         printf("Enet starting in 100BT/FD\n");
 490                         priv->duplexity = 1;
 491                         priv->speed = 100;
 492                         break;
 493
 494                 case 6:
 495                         printf("Enet starting in 1000BT/HD\n");
 496                         priv->duplexity = 0;
 497                         priv->speed = 1000;
 498                         break;
 499
 500                 case 7:
 501                         printf("Enet starting in 1000BT/FD\n");
 502                         priv->duplexity = 1;
 503                         priv->speed = 1000;
 504                         break;
 505
 506                 default:
 507                         printf("Auto-neg error, defaulting to 10BT/HD\n");
 508                         priv->duplexity = 0;
 509                         priv->speed = 10;
 510                         break;
 511         }
 512
 513         return 0;
 514
 515 }
 516 /* Parse the 88E1011's status register for speed and duplex
 517  * information
 518  */
 519 uint mii_parse_88E1011_psr(uint mii_reg, struct tsec_private * priv)
 520 {
 521         uint speed;
 522
 523         mii_reg = read_phy_reg(priv, MIIM_88E1011_PHY_STATUS);
 524
 525         if ((mii_reg & MIIM_88E1011_PHYSTAT_LINK) &&
 526                 !(mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE)) {
 527                 int i = 0;
 528
 529                 puts("Waiting for PHY realtime link");
 530                 while (!(mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE)) {
 531                         /* Timeout reached ? */
 532                         if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 533                                 puts(" TIMEOUT !\n");
 534                                 priv->link = 0;
 535                                 break;
 536                         }
 537
 538                         if ((i++ % 1000) == 0) {
 539                                 putc('.');
 540                         }
 541                         udelay(1000);   /* 1 ms */
 542                         mii_reg = read_phy_reg(priv, MIIM_88E1011_PHY_STATUS);
 543                 }
 544                 puts(" done\n");
 545                 udelay(500000); /* another 500 ms (results in faster booting) */
 546         } else {
 547                 if (mii_reg & MIIM_88E1011_PHYSTAT_LINK)
 548                         priv->link = 1;
 549                 else
 550                         priv->link = 0;
 551         }
 552
 553         if (mii_reg & MIIM_88E1011_PHYSTAT_DUPLEX)
 554                 priv->duplexity = 1;
 555         else
 556                 priv->duplexity = 0;
 557
 558         speed = (mii_reg & MIIM_88E1011_PHYSTAT_SPEED);
 559
 560         switch (speed) {
 561         case MIIM_88E1011_PHYSTAT_GBIT:
 562                 priv->speed = 1000;
 563                 break;
 564         case MIIM_88E1011_PHYSTAT_100:
 565                 priv->speed = 100;
 566                 break;
 567         default:
 568                 priv->speed = 10;
 569         }
 570
 571         return 0;
 572 }
 573
 574 /* Parse the cis8201's status register for speed and duplex
 575  * information
 576  */
 577 uint mii_parse_cis8201(uint mii_reg, struct tsec_private * priv)
 578 {
 579         uint speed;
 580
 581         if (mii_reg & MIIM_CIS8201_AUXCONSTAT_DUPLEX)
 582                 priv->duplexity = 1;
 583         else
 584                 priv->duplexity = 0;
 585
 586         speed = mii_reg & MIIM_CIS8201_AUXCONSTAT_SPEED;
 587         switch (speed) {
 588         case MIIM_CIS8201_AUXCONSTAT_GBIT:
 589                 priv->speed = 1000;
 590                 break;
 591         case MIIM_CIS8201_AUXCONSTAT_100:
 592                 priv->speed = 100;
 593                 break;
 594         default:
 595                 priv->speed = 10;
 596                 break;
 597         }
 598
 599         return 0;
 600 }
 601
 602 /* Parse the vsc8244's status register for speed and duplex
 603  * information
 604  */
 605 uint mii_parse_vsc8244(uint mii_reg, struct tsec_private * priv)
 606 {
 607         uint speed;
 608
 609         if (mii_reg & MIIM_VSC8244_AUXCONSTAT_DUPLEX)
 610                 priv->duplexity = 1;
 611         else
 612                 priv->duplexity = 0;
 613
 614         speed = mii_reg & MIIM_VSC8244_AUXCONSTAT_SPEED;
 615         switch (speed) {
 616         case MIIM_VSC8244_AUXCONSTAT_GBIT:
 617                 priv->speed = 1000;
 618                 break;
 619         case MIIM_VSC8244_AUXCONSTAT_100:
 620                 priv->speed = 100;
 621                 break;
 622         default:
 623                 priv->speed = 10;
 624                 break;
 625         }
 626
 627         return 0;
 628 }
 629
 630 /* Parse the DM9161's status register for speed and duplex
 631  * information
 632  */
 633 uint mii_parse_dm9161_scsr(uint mii_reg, struct tsec_private * priv)
 634 {
 635         if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_100H))
 636                 priv->speed = 100;
 637         else
 638                 priv->speed = 10;
 639
 640         if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_10F))
 641                 priv->duplexity = 1;
 642         else
 643                 priv->duplexity = 0;
 644
 645         return 0;
 646 }
 647
 648 /*
 649  * Hack to write all 4 PHYs with the LED values
 650  */
 651 uint mii_cis8204_fixled(uint mii_reg, struct tsec_private * priv)
 652 {
 653         uint phyid;
 654         volatile tsec_t *regbase = priv->phyregs;
 655         int timeout = 1000000;
 656
 657         for (phyid = 0; phyid < 4; phyid++) {
 658                 regbase->miimadd = (phyid << 8) | mii_reg;
 659                 regbase->miimcon = MIIM_CIS8204_SLEDCON_INIT;
 660                 asm("sync");
 661
 662                 timeout = 1000000;
 663                 while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
 664         }
 665
 666         return MIIM_CIS8204_SLEDCON_INIT;
 667 }
 668
 669 uint mii_cis8204_setmode(uint mii_reg, struct tsec_private * priv)
 670 {
 671         if (priv->flags & TSEC_REDUCED)
 672                 return MIIM_CIS8204_EPHYCON_INIT | MIIM_CIS8204_EPHYCON_RGMII;
 673         else
 674                 return MIIM_CIS8204_EPHYCON_INIT;
 675 }
 676
 677 uint mii_m88e1111s_setmode(uint mii_reg, struct tsec_private *priv)
 678 {
 679         uint mii_data = read_phy_reg(priv, mii_reg);
 680
 681         if (priv->flags & TSEC_REDUCED)
 682                 mii_data = (mii_data & 0xfff0) | 0x000b;
 683         return mii_data;
 684 }
 685
 686 /* Initialized required registers to appropriate values, zeroing
 687  * those we don't care about (unless zero is bad, in which case,
 688  * choose a more appropriate value)
 689  */
 690 static void init_registers(volatile tsec_t * regs)
 691 {
 692         /* Clear IEVENT */
 693         regs->ievent = IEVENT_INIT_CLEAR;
 694
 695         regs->imask = IMASK_INIT_CLEAR;
 696
 697         regs->hash.iaddr0 = 0;
 698         regs->hash.iaddr1 = 0;
 699         regs->hash.iaddr2 = 0;
 700         regs->hash.iaddr3 = 0;
 701         regs->hash.iaddr4 = 0;
 702         regs->hash.iaddr5 = 0;
 703         regs->hash.iaddr6 = 0;
 704         regs->hash.iaddr7 = 0;
 705
 706         regs->hash.gaddr0 = 0;
 707         regs->hash.gaddr1 = 0;
 708         regs->hash.gaddr2 = 0;
 709         regs->hash.gaddr3 = 0;
 710         regs->hash.gaddr4 = 0;
 711         regs->hash.gaddr5 = 0;
 712         regs->hash.gaddr6 = 0;
 713         regs->hash.gaddr7 = 0;
 714
 715         regs->rctrl = 0x00000000;
 716
 717         /* Init RMON mib registers */
 718         memset((void *)&(regs->rmon), 0, sizeof(rmon_mib_t));
 719
 720         regs->rmon.cam1 = 0xffffffff;
 721         regs->rmon.cam2 = 0xffffffff;
 722
 723         regs->mrblr = MRBLR_INIT_SETTINGS;
 724
 725         regs->minflr = MINFLR_INIT_SETTINGS;
 726
 727         regs->attr = ATTR_INIT_SETTINGS;
 728         regs->attreli = ATTRELI_INIT_SETTINGS;
 729
 730 }
 731
 732 /* Configure maccfg2 based on negotiated speed and duplex
 733  * reported by PHY handling code
 734  */
 735 static void adjust_link(struct eth_device *dev)
 736 {
 737         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 738         volatile tsec_t *regs = priv->regs;
 739
 740         if (priv->link) {
 741                 if (priv->duplexity != 0)
 742                         regs->maccfg2 |= MACCFG2_FULL_DUPLEX;
 743                 else
 744                         regs->maccfg2 &= ~(MACCFG2_FULL_DUPLEX);
 745
 746                 switch (priv->speed) {
 747                 case 1000:
 748                         regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
 749                                          | MACCFG2_GMII);
 750                         break;
 751                 case 100:
 752                 case 10:
 753                         regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
 754                                          | MACCFG2_MII);
 755
 756                         /* Set R100 bit in all modes although
 757                          * it is only used in RGMII mode
 758                          */
 759                         if (priv->speed == 100)
 760                                 regs->ecntrl |= ECNTRL_R100;
 761                         else
 762                                 regs->ecntrl &= ~(ECNTRL_R100);
 763                         break;
 764                 default:
 765                         printf("%s: Speed was bad\n", dev->name);
 766                         break;
 767                 }
 768
 769                 printf("Speed: %d, %s duplex\n", priv->speed,
 770                        (priv->duplexity) ? "full" : "half");
 771
 772         } else {
 773                 printf("%s: No link.\n", dev->name);
 774         }
 775 }
 776
 777 /* Set up the buffers and their descriptors, and bring up the
 778  * interface
 779  */
 780 static void startup_tsec(struct eth_device *dev)
 781 {
 782         int i;
 783         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 784         volatile tsec_t *regs = priv->regs;
 785
 786         /* Point to the buffer descriptors */
 787         regs->tbase = (unsigned int)(&rtx.txbd[txIdx]);
 788         regs->rbase = (unsigned int)(&rtx.rxbd[rxIdx]);
 789
 790         /* Initialize the Rx Buffer descriptors */
 791         for (i = 0; i < PKTBUFSRX; i++) {
 792                 rtx.rxbd[i].status = RXBD_EMPTY;
 793                 rtx.rxbd[i].length = 0;
 794                 rtx.rxbd[i].bufPtr = (uint) NetRxPackets[i];
 795         }
 796         rtx.rxbd[PKTBUFSRX - 1].status |= RXBD_WRAP;
 797
 798         /* Initialize the TX Buffer Descriptors */
 799         for (i = 0; i < TX_BUF_CNT; i++) {
 800                 rtx.txbd[i].status = 0;
 801                 rtx.txbd[i].length = 0;
 802                 rtx.txbd[i].bufPtr = 0;
 803         }
 804         rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP;
 805
 806         /* Start up the PHY */
 807         if(priv->phyinfo)
 808                 phy_run_commands(priv, priv->phyinfo->startup);
 809
 810         adjust_link(dev);
 811
 812         /* Enable Transmit and Receive */
 813         regs->maccfg1 |= (MACCFG1_RX_EN | MACCFG1_TX_EN);
 814
 815         /* Tell the DMA it is clear to go */
 816         regs->dmactrl |= DMACTRL_INIT_SETTINGS;
 817         regs->tstat = TSTAT_CLEAR_THALT;
 818         regs->rstat = RSTAT_CLEAR_RHALT;
 819         regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
 820 }
 821
 822 /* This returns the status bits of the device.  The return value
 823  * is never checked, and this is what the 8260 driver did, so we
 824  * do the same.  Presumably, this would be zero if there were no
 825  * errors
 826  */
 827 static int tsec_send(struct eth_device *dev, volatile void *packet, int length)
 828 {
 829         int i;
 830         int result = 0;
 831         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 832         volatile tsec_t *regs = priv->regs;
 833
 834         /* Find an empty buffer descriptor */
 835         for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
 836                 if (i >= TOUT_LOOP) {
 837                         debug("%s: tsec: tx buffers full\n", dev->name);
 838                         return result;
 839                 }
 840         }
 841
 842         rtx.txbd[txIdx].bufPtr = (uint) packet;
 843         rtx.txbd[txIdx].length = length;
 844         rtx.txbd[txIdx].status |=
 845             (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT);
 846
 847         /* Tell the DMA to go */
 848         regs->tstat = TSTAT_CLEAR_THALT;
 849
 850         /* Wait for buffer to be transmitted */
 851         for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
 852                 if (i >= TOUT_LOOP) {
 853                         debug("%s: tsec: tx error\n", dev->name);
 854                         return result;
 855                 }
 856         }
 857
 858         txIdx = (txIdx + 1) % TX_BUF_CNT;
 859         result = rtx.txbd[txIdx].status & TXBD_STATS;
 860
 861         return result;
 862 }
 863
 864 static int tsec_recv(struct eth_device *dev)
 865 {
 866         int length;
 867         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 868         volatile tsec_t *regs = priv->regs;
 869
 870         while (!(rtx.rxbd[rxIdx].status & RXBD_EMPTY)) {
 871
 872                 length = rtx.rxbd[rxIdx].length;
 873
 874                 /* Send the packet up if there were no errors */
 875                 if (!(rtx.rxbd[rxIdx].status & RXBD_STATS)) {
 876                         NetReceive(NetRxPackets[rxIdx], length - 4);
 877                 } else {
 878                         printf("Got error %x\n",
 879                                (rtx.rxbd[rxIdx].status & RXBD_STATS));
 880                 }
 881
 882                 rtx.rxbd[rxIdx].length = 0;
 883
 884                 /* Set the wrap bit if this is the last element in the list */
 885                 rtx.rxbd[rxIdx].status =
 886                     RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0);
 887
 888                 rxIdx = (rxIdx + 1) % PKTBUFSRX;
 889         }
 890
 891         if (regs->ievent & IEVENT_BSY) {
 892                 regs->ievent = IEVENT_BSY;
 893                 regs->rstat = RSTAT_CLEAR_RHALT;
 894         }
 895
 896         return -1;
 897
 898 }
 899
 900 /* Stop the interface */
 901 static void tsec_halt(struct eth_device *dev)
 902 {
 903         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 904         volatile tsec_t *regs = priv->regs;
 905
 906         regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
 907         regs->dmactrl |= (DMACTRL_GRS | DMACTRL_GTS);
 908
 909         while (!(regs->ievent & (IEVENT_GRSC | IEVENT_GTSC))) ;
 910
 911         regs->maccfg1 &= ~(MACCFG1_TX_EN | MACCFG1_RX_EN);
 912
 913         /* Shut down the PHY, as needed */
 914         if(priv->phyinfo)
 915                 phy_run_commands(priv, priv->phyinfo->shutdown);
 916 }
 917
 918 struct phy_info phy_info_M88E1149S = {
 919         0x1410ca,
 920         "Marvell 88E1149S",
 921         4,
 922         (struct phy_cmd[]){     /* config */
 923                 /* Reset and configure the PHY */
 924                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 925                 {0x1d, 0x1f, NULL},
 926                 {0x1e, 0x200c, NULL},
 927                 {0x1d, 0x5, NULL},
 928                 {0x1e, 0x0, NULL},
 929                 {0x1e, 0x100, NULL},
 930                 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 931                 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 932                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 933                 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 934                 {miim_end,}
 935         },
 936         (struct phy_cmd[]){     /* startup */
 937                 /* Status is read once to clear old link state */
 938                 {MIIM_STATUS, miim_read, NULL},
 939                 /* Auto-negotiate */
 940                 {MIIM_STATUS, miim_read, &mii_parse_sr},
 941                 /* Read the status */
 942                 {MIIM_88E1011_PHY_STATUS, miim_read,
 943                  &mii_parse_88E1011_psr},
 944                 {miim_end,}
 945         },
 946         (struct phy_cmd[]){     /* shutdown */
 947                 {miim_end,}
 948         },
 949 };
 950
 951 /* The 5411 id is 0x206070, the 5421 is 0x2060e0 */
 952 struct phy_info phy_info_BCM5461S = {
 953         0x02060c1,      /* 5461 ID */
 954         "Broadcom BCM5461S",
 955         0, /* not clear to me what minor revisions we can shift away */
 956         (struct phy_cmd[]) { /* config */
 957                 /* Reset and configure the PHY */
 958                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 959                 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 960                 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 961                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 962                 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 963                 {miim_end,}
 964         },
 965         (struct phy_cmd[]) { /* startup */
 966                 /* Status is read once to clear old link state */
 967                 {MIIM_STATUS, miim_read, NULL},
 968                 /* Auto-negotiate */
 969                 {MIIM_STATUS, miim_read, &mii_parse_sr},
 970                 /* Read the status */
 971                 {MIIM_BCM54xx_AUXSTATUS, miim_read, &mii_parse_BCM54xx_sr},
 972                 {miim_end,}
 973         },
 974         (struct phy_cmd[]) { /* shutdown */
 975                 {miim_end,}
 976         },
 977 };
 978
 979 struct phy_info phy_info_BCM5464S = {
 980         0x02060b1,      /* 5464 ID */
 981         "Broadcom BCM5464S",
 982         0, /* not clear to me what minor revisions we can shift away */
 983         (struct phy_cmd[]) { /* config */
 984                 /* Reset and configure the PHY */
 985                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 986                 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 987                 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 988                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 989                 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 990                 {miim_end,}
 991         },
 992         (struct phy_cmd[]) { /* startup */
 993                 /* Status is read once to clear old link state */
 994                 {MIIM_STATUS, miim_read, NULL},
 995                 /* Auto-negotiate */
 996                 {MIIM_STATUS, miim_read, &mii_parse_sr},
 997                 /* Read the status */
 998                 {MIIM_BCM54xx_AUXSTATUS, miim_read, &mii_parse_BCM54xx_sr},
 999                 {miim_end,}
1000         },
1001         (struct phy_cmd[]) { /* shutdown */
1002                 {miim_end,}
1003         },
1004 };
1005
1006 struct phy_info phy_info_M88E1011S = {
1007         0x01410c6,
1008         "Marvell 88E1011S",
1009         4,
1010         (struct phy_cmd[]){     /* config */
1011                            /* Reset and configure the PHY */
1012                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1013                            {0x1d, 0x1f, NULL},
1014                            {0x1e, 0x200c, NULL},
1015                            {0x1d, 0x5, NULL},
1016                            {0x1e, 0x0, NULL},
1017                            {0x1e, 0x100, NULL},
1018                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
1019                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
1020                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1021                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1022                            {miim_end,}
1023                            },
1024         (struct phy_cmd[]){     /* startup */
1025                            /* Status is read once to clear old link state */
1026                            {MIIM_STATUS, miim_read, NULL},
1027                            /* Auto-negotiate */
1028                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1029                            /* Read the status */
1030                            {MIIM_88E1011_PHY_STATUS, miim_read,
1031                             &mii_parse_88E1011_psr},
1032                            {miim_end,}
1033                            },
1034         (struct phy_cmd[]){     /* shutdown */
1035                            {miim_end,}
1036                            },
1037 };
1038
1039 struct phy_info phy_info_M88E1111S = {
1040         0x01410cc,
1041         "Marvell 88E1111S",
1042         4,
1043         (struct phy_cmd[]){     /* config */
1044                            /* Reset and configure the PHY */
1045                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1046                            {0x1b, 0x848f, &mii_m88e1111s_setmode},
1047                            {0x14, 0x0cd2, NULL}, /* Delay RGMII TX and RX */
1048                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
1049                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
1050                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1051                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1052                            {miim_end,}
1053                            },
1054         (struct phy_cmd[]){     /* startup */
1055                            /* Status is read once to clear old link state */
1056                            {MIIM_STATUS, miim_read, NULL},
1057                            /* Auto-negotiate */
1058                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1059                            /* Read the status */
1060                            {MIIM_88E1011_PHY_STATUS, miim_read,
1061                             &mii_parse_88E1011_psr},
1062                            {miim_end,}
1063                            },
1064         (struct phy_cmd[]){     /* shutdown */
1065                            {miim_end,}
1066                            },
1067 };
1068
1069 static unsigned int m88e1145_setmode(uint mii_reg, struct tsec_private *priv)
1070 {
1071         uint mii_data = read_phy_reg(priv, mii_reg);
1072
1073         /* Setting MIIM_88E1145_PHY_EXT_CR */
1074         if (priv->flags & TSEC_REDUCED)
1075                 return mii_data |
1076                     MIIM_M88E1145_RGMII_RX_DELAY | MIIM_M88E1145_RGMII_TX_DELAY;
1077         else
1078                 return mii_data;
1079 }
1080
1081 static struct phy_info phy_info_M88E1145 = {
1082         0x01410cd,
1083         "Marvell 88E1145",
1084         4,
1085         (struct phy_cmd[]){     /* config */
1086                            /* Reset the PHY */
1087                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1088
1089                            /* Errata E0, E1 */
1090                            {29, 0x001b, NULL},
1091                            {30, 0x418f, NULL},
1092                            {29, 0x0016, NULL},
1093                            {30, 0xa2da, NULL},
1094
1095                            /* Configure the PHY */
1096                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
1097                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
1098                            {MIIM_88E1011_PHY_SCR, MIIM_88E1011_PHY_MDI_X_AUTO,
1099                             NULL},
1100                            {MIIM_88E1145_PHY_EXT_CR, 0, &m88e1145_setmode},
1101                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1102                            {MIIM_CONTROL, MIIM_CONTROL_INIT, NULL},
1103                            {miim_end,}
1104                            },
1105         (struct phy_cmd[]){     /* startup */
1106                            /* Status is read once to clear old link state */
1107                            {MIIM_STATUS, miim_read, NULL},
1108                            /* Auto-negotiate */
1109                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1110                            {MIIM_88E1111_PHY_LED_CONTROL,
1111                             MIIM_88E1111_PHY_LED_DIRECT, NULL},
1112                            /* Read the Status */
1113                            {MIIM_88E1011_PHY_STATUS, miim_read,
1114                             &mii_parse_88E1011_psr},
1115                            {miim_end,}
1116                            },
1117         (struct phy_cmd[]){     /* shutdown */
1118                            {miim_end,}
1119                            },
1120 };
1121
1122 struct phy_info phy_info_cis8204 = {
1123         0x3f11,
1124         "Cicada Cis8204",
1125         6,
1126         (struct phy_cmd[]){     /* config */
1127                            /* Override PHY config settings */
1128                            {MIIM_CIS8201_AUX_CONSTAT,
1129                             MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
1130                            /* Configure some basic stuff */
1131                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1132                            {MIIM_CIS8204_SLED_CON, MIIM_CIS8204_SLEDCON_INIT,
1133                             &mii_cis8204_fixled},
1134                            {MIIM_CIS8204_EPHY_CON, MIIM_CIS8204_EPHYCON_INIT,
1135                             &mii_cis8204_setmode},
1136                            {miim_end,}
1137                            },
1138         (struct phy_cmd[]){     /* startup */
1139                            /* Read the Status (2x to make sure link is right) */
1140                            {MIIM_STATUS, miim_read, NULL},
1141                            /* Auto-negotiate */
1142                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1143                            /* Read the status */
1144                            {MIIM_CIS8201_AUX_CONSTAT, miim_read,
1145                             &mii_parse_cis8201},
1146                            {miim_end,}
1147                            },
1148         (struct phy_cmd[]){     /* shutdown */
1149                            {miim_end,}
1150                            },
1151 };
1152
1153 /* Cicada 8201 */
1154 struct phy_info phy_info_cis8201 = {
1155         0xfc41,
1156         "CIS8201",
1157         4,
1158         (struct phy_cmd[]){     /* config */
1159                            /* Override PHY config settings */
1160                            {MIIM_CIS8201_AUX_CONSTAT,
1161                             MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
1162                            /* Set up the interface mode */
1163                            {MIIM_CIS8201_EXT_CON1, MIIM_CIS8201_EXTCON1_INIT,
1164                             NULL},
1165                            /* Configure some basic stuff */
1166                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1167                            {miim_end,}
1168                            },
1169         (struct phy_cmd[]){     /* startup */
1170                            /* Read the Status (2x to make sure link is right) */
1171                            {MIIM_STATUS, miim_read, NULL},
1172                            /* Auto-negotiate */
1173                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1174                            /* Read the status */
1175                            {MIIM_CIS8201_AUX_CONSTAT, miim_read,
1176                             &mii_parse_cis8201},
1177                            {miim_end,}
1178                            },
1179         (struct phy_cmd[]){     /* shutdown */
1180                            {miim_end,}
1181                            },
1182 };
1183 struct phy_info phy_info_VSC8244 = {
1184         0x3f1b,
1185         "Vitesse VSC8244",
1186         6,
1187         (struct phy_cmd[]){     /* config */
1188                            /* Override PHY config settings */
1189                            /* Configure some basic stuff */
1190                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1191                            {miim_end,}
1192                            },
1193         (struct phy_cmd[]){     /* startup */
1194                            /* Read the Status (2x to make sure link is right) */
1195                            {MIIM_STATUS, miim_read, NULL},
1196                            /* Auto-negotiate */
1197                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1198                            /* Read the status */
1199                            {MIIM_VSC8244_AUX_CONSTAT, miim_read,
1200                             &mii_parse_vsc8244},
1201                            {miim_end,}
1202                            },
1203         (struct phy_cmd[]){     /* shutdown */
1204                            {miim_end,}
1205                            },
1206 };
1207
1208 struct phy_info phy_info_dm9161 = {
1209         0x0181b88,
1210         "Davicom DM9161E",
1211         4,
1212         (struct phy_cmd[]){     /* config */
1213                            {MIIM_CONTROL, MIIM_DM9161_CR_STOP, NULL},
1214                            /* Do not bypass the scrambler/descrambler */
1215                            {MIIM_DM9161_SCR, MIIM_DM9161_SCR_INIT, NULL},
1216                            /* Clear 10BTCSR to default */
1217                            {MIIM_DM9161_10BTCSR, MIIM_DM9161_10BTCSR_INIT,
1218                             NULL},
1219                            /* Configure some basic stuff */
1220                            {MIIM_CONTROL, MIIM_CR_INIT, NULL},
1221                            /* Restart Auto Negotiation */
1222                            {MIIM_CONTROL, MIIM_DM9161_CR_RSTAN, NULL},
1223                            {miim_end,}
1224                            },
1225         (struct phy_cmd[]){     /* startup */
1226                            /* Status is read once to clear old link state */
1227                            {MIIM_STATUS, miim_read, NULL},
1228                            /* Auto-negotiate */
1229                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1230                            /* Read the status */
1231                            {MIIM_DM9161_SCSR, miim_read,
1232                             &mii_parse_dm9161_scsr},
1233                            {miim_end,}
1234                            },
1235         (struct phy_cmd[]){     /* shutdown */
1236                            {miim_end,}
1237                            },
1238 };
1239 /* a generic flavor.  */
1240 struct phy_info phy_info_generic =  {
1241         0,
1242         "Unknown/Generic PHY",
1243         32,
1244         (struct phy_cmd[]) { /* config */
1245                 {PHY_BMCR, PHY_BMCR_RESET, NULL},
1246                 {PHY_BMCR, PHY_BMCR_AUTON|PHY_BMCR_RST_NEG, NULL},
1247                 {miim_end,}
1248         },
1249         (struct phy_cmd[]) { /* startup */
1250                 {PHY_BMSR, miim_read, NULL},
1251                 {PHY_BMSR, miim_read, &mii_parse_sr},
1252                 {PHY_BMSR, miim_read, &mii_parse_link},
1253                 {miim_end,}
1254         },
1255         (struct phy_cmd[]) { /* shutdown */
1256                 {miim_end,}
1257         }
1258 };
1259
1260
1261 uint mii_parse_lxt971_sr2(uint mii_reg, struct tsec_private *priv)
1262 {
1263         unsigned int speed;
1264         if (priv->link) {
1265                 speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
1266
1267                 switch (speed) {
1268                 case MIIM_LXT971_SR2_10HDX:
1269                         priv->speed = 10;
1270                         priv->duplexity = 0;
1271                         break;
1272                 case MIIM_LXT971_SR2_10FDX:
1273                         priv->speed = 10;
1274                         priv->duplexity = 1;
1275                         break;
1276                 case MIIM_LXT971_SR2_100HDX:
1277                         priv->speed = 100;
1278                         priv->duplexity = 0;
1279                         break;
1280                 default:
1281                         priv->speed = 100;
1282                         priv->duplexity = 1;
1283                 }
1284         } else {
1285                 priv->speed = 0;
1286                 priv->duplexity = 0;
1287         }
1288
1289         return 0;
1290 }
1291
1292 static struct phy_info phy_info_lxt971 = {
1293         0x0001378e,
1294         "LXT971",
1295         4,
1296         (struct phy_cmd[]){     /* config */
1297                            {MIIM_CR, MIIM_CR_INIT, mii_cr_init},        /* autonegotiate */
1298                            {miim_end,}
1299                            },
1300         (struct phy_cmd[]){     /* startup - enable interrupts */
1301                            /* { 0x12, 0x00f2, NULL }, */
1302                            {MIIM_STATUS, miim_read, NULL},
1303                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1304                            {MIIM_LXT971_SR2, miim_read, &mii_parse_lxt971_sr2},
1305                            {miim_end,}
1306                            },
1307         (struct phy_cmd[]){     /* shutdown - disable interrupts */
1308                            {miim_end,}
1309                            },
1310 };
1311
1312 /* Parse the DP83865's link and auto-neg status register for speed and duplex
1313  * information
1314  */
1315 uint mii_parse_dp83865_lanr(uint mii_reg, struct tsec_private *priv)
1316 {
1317         switch (mii_reg & MIIM_DP83865_SPD_MASK) {
1318
1319         case MIIM_DP83865_SPD_1000:
1320                 priv->speed = 1000;
1321                 break;
1322
1323         case MIIM_DP83865_SPD_100:
1324                 priv->speed = 100;
1325                 break;
1326
1327         default:
1328                 priv->speed = 10;
1329                 break;
1330
1331         }
1332
1333         if (mii_reg & MIIM_DP83865_DPX_FULL)
1334                 priv->duplexity = 1;
1335         else
1336                 priv->duplexity = 0;
1337
1338         return 0;
1339 }
1340
1341 struct phy_info phy_info_dp83865 = {
1342         0x20005c7,
1343         "NatSemi DP83865",
1344         4,
1345         (struct phy_cmd[]){     /* config */
1346                            {MIIM_CONTROL, MIIM_DP83865_CR_INIT, NULL},
1347                            {miim_end,}
1348                            },
1349         (struct phy_cmd[]){     /* startup */
1350                            /* Status is read once to clear old link state */
1351                            {MIIM_STATUS, miim_read, NULL},
1352                            /* Auto-negotiate */
1353                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1354                            /* Read the link and auto-neg status */
1355                            {MIIM_DP83865_LANR, miim_read,
1356                             &mii_parse_dp83865_lanr},
1357                            {miim_end,}
1358                            },
1359         (struct phy_cmd[]){     /* shutdown */
1360                            {miim_end,}
1361                            },
1362 };
1363
1364 struct phy_info *phy_info[] = {
1365         &phy_info_cis8204,
1366         &phy_info_cis8201,
1367         &phy_info_BCM5461S,
1368         &phy_info_BCM5464S,
1369         &phy_info_M88E1011S,
1370         &phy_info_M88E1111S,
1371         &phy_info_M88E1145,
1372         &phy_info_M88E1149S,
1373         &phy_info_dm9161,
1374         &phy_info_lxt971,
1375         &phy_info_VSC8244,
1376         &phy_info_dp83865,
1377         &phy_info_generic,
1378         NULL
1379 };
1380
1381 /* Grab the identifier of the device's PHY, and search through
1382  * all of the known PHYs to see if one matches.  If so, return
1383  * it, if not, return NULL
1384  */
1385 struct phy_info *get_phy_info(struct eth_device *dev)
1386 {
1387         struct tsec_private *priv = (struct tsec_private *)dev->priv;
1388         uint phy_reg, phy_ID;
1389         int i;
1390         struct phy_info *theInfo = NULL;
1391
1392         /* Grab the bits from PHYIR1, and put them in the upper half */
1393         phy_reg = read_phy_reg(priv, MIIM_PHYIR1);
1394         phy_ID = (phy_reg & 0xffff) << 16;
1395
1396         /* Grab the bits from PHYIR2, and put them in the lower half */
1397         phy_reg = read_phy_reg(priv, MIIM_PHYIR2);
1398         phy_ID |= (phy_reg & 0xffff);
1399
1400         /* loop through all the known PHY types, and find one that */
1401         /* matches the ID we read from the PHY. */
1402         for (i = 0; phy_info[i]; i++) {
1403                 if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift)) {
1404                         theInfo = phy_info[i];
1405                         break;
1406                 }
1407         }
1408
1409         if (theInfo == NULL) {
1410                 printf("%s: PHY id %x is not supported!\n", dev->name, phy_ID);
1411                 return NULL;
1412         } else {
1413                 debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
1414         }
1415
1416         return theInfo;
1417 }
1418
1419 /* Execute the given series of commands on the given device's
1420  * PHY, running functions as necessary
1421  */
1422 void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd)
1423 {
1424         int i;
1425         uint result;
1426         volatile tsec_t *phyregs = priv->phyregs;
1427
1428         phyregs->miimcfg = MIIMCFG_RESET;
1429
1430         phyregs->miimcfg = MIIMCFG_INIT_VALUE;
1431
1432         while (phyregs->miimind & MIIMIND_BUSY) ;
1433
1434         for (i = 0; cmd->mii_reg != miim_end; i++) {
1435                 if (cmd->mii_data == miim_read) {
1436                         result = read_phy_reg(priv, cmd->mii_reg);
1437
1438                         if (cmd->funct != NULL)
1439                                 (*(cmd->funct)) (result, priv);
1440
1441                 } else {
1442                         if (cmd->funct != NULL)
1443                                 result = (*(cmd->funct)) (cmd->mii_reg, priv);
1444                         else
1445                                 result = cmd->mii_data;
1446
1447                         write_phy_reg(priv, cmd->mii_reg, result);
1448
1449                 }
1450                 cmd++;
1451         }
1452 }
1453
1454 /* Relocate the function pointers in the phy cmd lists */
1455 static void relocate_cmds(void)
1456 {
1457         struct phy_cmd **cmdlistptr;
1458         struct phy_cmd *cmd;
1459         int i, j, k;
1460
1461         for (i = 0; phy_info[i]; i++) {
1462                 /* First thing's first: relocate the pointers to the
1463                  * PHY command structures (the structs were done) */
1464                 phy_info[i] = (struct phy_info *)((uint) phy_info[i]
1465                                                   + gd->reloc_off);
1466                 phy_info[i]->name += gd->reloc_off;
1467                 phy_info[i]->config =
1468                     (struct phy_cmd *)((uint) phy_info[i]->config
1469                                        + gd->reloc_off);
1470                 phy_info[i]->startup =
1471                     (struct phy_cmd *)((uint) phy_info[i]->startup
1472                                        + gd->reloc_off);
1473                 phy_info[i]->shutdown =
1474                     (struct phy_cmd *)((uint) phy_info[i]->shutdown
1475                                        + gd->reloc_off);
1476
1477                 cmdlistptr = &phy_info[i]->config;
1478                 j = 0;
1479                 for (; cmdlistptr <= &phy_info[i]->shutdown; cmdlistptr++) {
1480                         k = 0;
1481                         for (cmd = *cmdlistptr;
1482                              cmd->mii_reg != miim_end;
1483                              cmd++) {
1484                                 /* Only relocate non-NULL pointers */
1485                                 if (cmd->funct)
1486                                         cmd->funct += gd->reloc_off;
1487
1488                                 k++;
1489                         }
1490                         j++;
1491                 }
1492         }
1493
1494         relocated = 1;
1495 }
1496
1497 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
1498         && !defined(BITBANGMII)
1499
1500 struct tsec_private *get_priv_for_phy(unsigned char phyaddr)
1501 {
1502         int i;
1503
1504         for (i = 0; i < MAXCONTROLLERS; i++) {
1505                 if (privlist[i]->phyaddr == phyaddr)
1506                         return privlist[i];
1507         }
1508
1509         return NULL;
1510 }
1511
1512 /*
1513  * Read a MII PHY register.
1514  *
1515  * Returns:
1516  *  0 on success
1517  */
1518 static int tsec_miiphy_read(char *devname, unsigned char addr,
1519                             unsigned char reg, unsigned short *value)
1520 {
1521         unsigned short ret;
1522         struct tsec_private *priv = get_priv_for_phy(addr);
1523
1524         if (NULL == priv) {
1525                 printf("Can't read PHY at address %d\n", addr);
1526                 return -1;
1527         }
1528
1529         ret = (unsigned short)read_phy_reg(priv, reg);
1530         *value = ret;
1531
1532         return 0;
1533 }
1534
1535 /*
1536  * Write a MII PHY register.
1537  *
1538  * Returns:
1539  *  0 on success
1540  */
1541 static int tsec_miiphy_write(char *devname, unsigned char addr,
1542                              unsigned char reg, unsigned short value)
1543 {
1544         struct tsec_private *priv = get_priv_for_phy(addr);
1545
1546         if (NULL == priv) {
1547                 printf("Can't write PHY at address %d\n", addr);
1548                 return -1;
1549         }
1550
1551         write_phy_reg(priv, reg, value);
1552
1553         return 0;
1554 }
1555
1556 #endif
1557
1558 #ifdef CONFIG_MCAST_TFTP
1559
1560 /* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
1561
1562 /* Set the appropriate hash bit for the given addr */
1563
1564 /* The algorithm works like so:
1565  * 1) Take the Destination Address (ie the multicast address), and
1566  * do a CRC on it (little endian), and reverse the bits of the
1567  * result.
1568  * 2) Use the 8 most significant bits as a hash into a 256-entry
1569  * table.  The table is controlled through 8 32-bit registers:
1570  * gaddr0-7.  gaddr0's MSB is entry 0, and gaddr7's LSB is
1571  * gaddr7.  This means that the 3 most significant bits in the
1572  * hash index which gaddr register to use, and the 5 other bits
1573  * indicate which bit (assuming an IBM numbering scheme, which
1574  * for PowerPC (tm) is usually the case) in the tregister holds
1575  * the entry. */
1576 static int
1577 tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set)
1578 {
1579  struct tsec_private *priv = privlist[1];
1580  volatile tsec_t *regs = priv->regs;
1581  volatile u32  *reg_array, value;
1582  u8 result, whichbit, whichreg;
1583
1584         result = (u8)((ether_crc(MAC_ADDR_LEN,mcast_mac) >> 24) & 0xff);
1585         whichbit = result & 0x1f;       /* the 5 LSB = which bit to set */
1586         whichreg = result >> 5;         /* the 3 MSB = which reg to set it in */
1587         value = (1 << (31-whichbit));
1588
1589         reg_array = &(regs->hash.gaddr0);
1590
1591         if (set) {
1592                 reg_array[whichreg] |= value;
1593         } else {
1594                 reg_array[whichreg] &= ~value;
1595         }
1596         return 0;
1597 }
1598 #endif /* Multicast TFTP ? */
1599
1600 #endif /* CONFIG_TSEC_ENET */