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;
 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 /* Initialized required registers to appropriate values, zeroing
 678  * those we don't care about (unless zero is bad, in which case,
 679  * choose a more appropriate value)
 680  */
 681 static void init_registers(volatile tsec_t * regs)
 682 {
 683         /* Clear IEVENT */
 684         regs->ievent = IEVENT_INIT_CLEAR;
 685
 686         regs->imask = IMASK_INIT_CLEAR;
 687
 688         regs->hash.iaddr0 = 0;
 689         regs->hash.iaddr1 = 0;
 690         regs->hash.iaddr2 = 0;
 691         regs->hash.iaddr3 = 0;
 692         regs->hash.iaddr4 = 0;
 693         regs->hash.iaddr5 = 0;
 694         regs->hash.iaddr6 = 0;
 695         regs->hash.iaddr7 = 0;
 696
 697         regs->hash.gaddr0 = 0;
 698         regs->hash.gaddr1 = 0;
 699         regs->hash.gaddr2 = 0;
 700         regs->hash.gaddr3 = 0;
 701         regs->hash.gaddr4 = 0;
 702         regs->hash.gaddr5 = 0;
 703         regs->hash.gaddr6 = 0;
 704         regs->hash.gaddr7 = 0;
 705
 706         regs->rctrl = 0x00000000;
 707
 708         /* Init RMON mib registers */
 709         memset((void *)&(regs->rmon), 0, sizeof(rmon_mib_t));
 710
 711         regs->rmon.cam1 = 0xffffffff;
 712         regs->rmon.cam2 = 0xffffffff;
 713
 714         regs->mrblr = MRBLR_INIT_SETTINGS;
 715
 716         regs->minflr = MINFLR_INIT_SETTINGS;
 717
 718         regs->attr = ATTR_INIT_SETTINGS;
 719         regs->attreli = ATTRELI_INIT_SETTINGS;
 720
 721 }
 722
 723 /* Configure maccfg2 based on negotiated speed and duplex
 724  * reported by PHY handling code
 725  */
 726 static void adjust_link(struct eth_device *dev)
 727 {
 728         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 729         volatile tsec_t *regs = priv->regs;
 730
 731         if (priv->link) {
 732                 if (priv->duplexity != 0)
 733                         regs->maccfg2 |= MACCFG2_FULL_DUPLEX;
 734                 else
 735                         regs->maccfg2 &= ~(MACCFG2_FULL_DUPLEX);
 736
 737                 switch (priv->speed) {
 738                 case 1000:
 739                         regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
 740                                          | MACCFG2_GMII);
 741                         break;
 742                 case 100:
 743                 case 10:
 744                         regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
 745                                          | MACCFG2_MII);
 746
 747                         /* Set R100 bit in all modes although
 748                          * it is only used in RGMII mode
 749                          */
 750                         if (priv->speed == 100)
 751                                 regs->ecntrl |= ECNTRL_R100;
 752                         else
 753                                 regs->ecntrl &= ~(ECNTRL_R100);
 754                         break;
 755                 default:
 756                         printf("%s: Speed was bad\n", dev->name);
 757                         break;
 758                 }
 759
 760                 printf("Speed: %d, %s duplex\n", priv->speed,
 761                        (priv->duplexity) ? "full" : "half");
 762
 763         } else {
 764                 printf("%s: No link.\n", dev->name);
 765         }
 766 }
 767
 768 /* Set up the buffers and their descriptors, and bring up the
 769  * interface
 770  */
 771 static void startup_tsec(struct eth_device *dev)
 772 {
 773         int i;
 774         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 775         volatile tsec_t *regs = priv->regs;
 776
 777         /* Point to the buffer descriptors */
 778         regs->tbase = (unsigned int)(&rtx.txbd[txIdx]);
 779         regs->rbase = (unsigned int)(&rtx.rxbd[rxIdx]);
 780
 781         /* Initialize the Rx Buffer descriptors */
 782         for (i = 0; i < PKTBUFSRX; i++) {
 783                 rtx.rxbd[i].status = RXBD_EMPTY;
 784                 rtx.rxbd[i].length = 0;
 785                 rtx.rxbd[i].bufPtr = (uint) NetRxPackets[i];
 786         }
 787         rtx.rxbd[PKTBUFSRX - 1].status |= RXBD_WRAP;
 788
 789         /* Initialize the TX Buffer Descriptors */
 790         for (i = 0; i < TX_BUF_CNT; i++) {
 791                 rtx.txbd[i].status = 0;
 792                 rtx.txbd[i].length = 0;
 793                 rtx.txbd[i].bufPtr = 0;
 794         }
 795         rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP;
 796
 797         /* Start up the PHY */
 798         if(priv->phyinfo)
 799                 phy_run_commands(priv, priv->phyinfo->startup);
 800
 801         adjust_link(dev);
 802
 803         /* Enable Transmit and Receive */
 804         regs->maccfg1 |= (MACCFG1_RX_EN | MACCFG1_TX_EN);
 805
 806         /* Tell the DMA it is clear to go */
 807         regs->dmactrl |= DMACTRL_INIT_SETTINGS;
 808         regs->tstat = TSTAT_CLEAR_THALT;
 809         regs->rstat = RSTAT_CLEAR_RHALT;
 810         regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
 811 }
 812
 813 /* This returns the status bits of the device.  The return value
 814  * is never checked, and this is what the 8260 driver did, so we
 815  * do the same.  Presumably, this would be zero if there were no
 816  * errors
 817  */
 818 static int tsec_send(struct eth_device *dev, volatile void *packet, int length)
 819 {
 820         int i;
 821         int result = 0;
 822         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 823         volatile tsec_t *regs = priv->regs;
 824
 825         /* Find an empty buffer descriptor */
 826         for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
 827                 if (i >= TOUT_LOOP) {
 828                         debug("%s: tsec: tx buffers full\n", dev->name);
 829                         return result;
 830                 }
 831         }
 832
 833         rtx.txbd[txIdx].bufPtr = (uint) packet;
 834         rtx.txbd[txIdx].length = length;
 835         rtx.txbd[txIdx].status |=
 836             (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT);
 837
 838         /* Tell the DMA to go */
 839         regs->tstat = TSTAT_CLEAR_THALT;
 840
 841         /* Wait for buffer to be transmitted */
 842         for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
 843                 if (i >= TOUT_LOOP) {
 844                         debug("%s: tsec: tx error\n", dev->name);
 845                         return result;
 846                 }
 847         }
 848
 849         txIdx = (txIdx + 1) % TX_BUF_CNT;
 850         result = rtx.txbd[txIdx].status & TXBD_STATS;
 851
 852         return result;
 853 }
 854
 855 static int tsec_recv(struct eth_device *dev)
 856 {
 857         int length;
 858         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 859         volatile tsec_t *regs = priv->regs;
 860
 861         while (!(rtx.rxbd[rxIdx].status & RXBD_EMPTY)) {
 862
 863                 length = rtx.rxbd[rxIdx].length;
 864
 865                 /* Send the packet up if there were no errors */
 866                 if (!(rtx.rxbd[rxIdx].status & RXBD_STATS)) {
 867                         NetReceive(NetRxPackets[rxIdx], length - 4);
 868                 } else {
 869                         printf("Got error %x\n",
 870                                (rtx.rxbd[rxIdx].status & RXBD_STATS));
 871                 }
 872
 873                 rtx.rxbd[rxIdx].length = 0;
 874
 875                 /* Set the wrap bit if this is the last element in the list */
 876                 rtx.rxbd[rxIdx].status =
 877                     RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0);
 878
 879                 rxIdx = (rxIdx + 1) % PKTBUFSRX;
 880         }
 881
 882         if (regs->ievent & IEVENT_BSY) {
 883                 regs->ievent = IEVENT_BSY;
 884                 regs->rstat = RSTAT_CLEAR_RHALT;
 885         }
 886
 887         return -1;
 888
 889 }
 890
 891 /* Stop the interface */
 892 static void tsec_halt(struct eth_device *dev)
 893 {
 894         struct tsec_private *priv = (struct tsec_private *)dev->priv;
 895         volatile tsec_t *regs = priv->regs;
 896
 897         regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
 898         regs->dmactrl |= (DMACTRL_GRS | DMACTRL_GTS);
 899
 900         while (!(regs->ievent & (IEVENT_GRSC | IEVENT_GTSC))) ;
 901
 902         regs->maccfg1 &= ~(MACCFG1_TX_EN | MACCFG1_RX_EN);
 903
 904         /* Shut down the PHY, as needed */
 905         if(priv->phyinfo)
 906                 phy_run_commands(priv, priv->phyinfo->shutdown);
 907 }
 908
 909 struct phy_info phy_info_M88E1149S = {
 910         0x1410ca,
 911         "Marvell 88E1149S",
 912         4,
 913         (struct phy_cmd[]){     /* config */
 914                 /* Reset and configure the PHY */
 915                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 916                 {0x1d, 0x1f, NULL},
 917                 {0x1e, 0x200c, NULL},
 918                 {0x1d, 0x5, NULL},
 919                 {0x1e, 0x0, NULL},
 920                 {0x1e, 0x100, NULL},
 921                 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 922                 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 923                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 924                 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 925                 {miim_end,}
 926         },
 927         (struct phy_cmd[]){     /* startup */
 928                 /* Status is read once to clear old link state */
 929                 {MIIM_STATUS, miim_read, NULL},
 930                 /* Auto-negotiate */
 931                 {MIIM_STATUS, miim_read, &mii_parse_sr},
 932                 /* Read the status */
 933                 {MIIM_88E1011_PHY_STATUS, miim_read,
 934                  &mii_parse_88E1011_psr},
 935                 {miim_end,}
 936         },
 937         (struct phy_cmd[]){     /* shutdown */
 938                 {miim_end,}
 939         },
 940 };
 941
 942 /* The 5411 id is 0x206070, the 5421 is 0x2060e0 */
 943 struct phy_info phy_info_BCM5461S = {
 944         0x02060c1,      /* 5461 ID */
 945         "Broadcom BCM5461S",
 946         0, /* not clear to me what minor revisions we can shift away */
 947         (struct phy_cmd[]) { /* config */
 948                 /* Reset and configure the PHY */
 949                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 950                 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 951                 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 952                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 953                 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 954                 {miim_end,}
 955         },
 956         (struct phy_cmd[]) { /* startup */
 957                 /* Status is read once to clear old link state */
 958                 {MIIM_STATUS, miim_read, NULL},
 959                 /* Auto-negotiate */
 960                 {MIIM_STATUS, miim_read, &mii_parse_sr},
 961                 /* Read the status */
 962                 {MIIM_BCM54xx_AUXSTATUS, miim_read, &mii_parse_BCM54xx_sr},
 963                 {miim_end,}
 964         },
 965         (struct phy_cmd[]) { /* shutdown */
 966                 {miim_end,}
 967         },
 968 };
 969
 970 struct phy_info phy_info_BCM5464S = {
 971         0x02060b1,      /* 5464 ID */
 972         "Broadcom BCM5464S",
 973         0, /* not clear to me what minor revisions we can shift away */
 974         (struct phy_cmd[]) { /* config */
 975                 /* Reset and configure the PHY */
 976                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 977                 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
 978                 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
 979                 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
 980                 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
 981                 {miim_end,}
 982         },
 983         (struct phy_cmd[]) { /* startup */
 984                 /* Status is read once to clear old link state */
 985                 {MIIM_STATUS, miim_read, NULL},
 986                 /* Auto-negotiate */
 987                 {MIIM_STATUS, miim_read, &mii_parse_sr},
 988                 /* Read the status */
 989                 {MIIM_BCM54xx_AUXSTATUS, miim_read, &mii_parse_BCM54xx_sr},
 990                 {miim_end,}
 991         },
 992         (struct phy_cmd[]) { /* shutdown */
 993                 {miim_end,}
 994         },
 995 };
 996
 997 struct phy_info phy_info_M88E1011S = {
 998         0x01410c6,
 999         "Marvell 88E1011S",
1000         4,
1001         (struct phy_cmd[]){     /* config */
1002                            /* Reset and configure the PHY */
1003                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1004                            {0x1d, 0x1f, NULL},
1005                            {0x1e, 0x200c, NULL},
1006                            {0x1d, 0x5, NULL},
1007                            {0x1e, 0x0, NULL},
1008                            {0x1e, 0x100, NULL},
1009                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
1010                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
1011                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1012                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1013                            {miim_end,}
1014                            },
1015         (struct phy_cmd[]){     /* startup */
1016                            /* Status is read once to clear old link state */
1017                            {MIIM_STATUS, miim_read, NULL},
1018                            /* Auto-negotiate */
1019                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1020                            /* Read the status */
1021                            {MIIM_88E1011_PHY_STATUS, miim_read,
1022                             &mii_parse_88E1011_psr},
1023                            {miim_end,}
1024                            },
1025         (struct phy_cmd[]){     /* shutdown */
1026                            {miim_end,}
1027                            },
1028 };
1029
1030 struct phy_info phy_info_M88E1111S = {
1031         0x01410cc,
1032         "Marvell 88E1111S",
1033         4,
1034         (struct phy_cmd[]){     /* config */
1035                            /* Reset and configure the PHY */
1036                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1037                            {0x14, 0x0cd2, NULL}, /* Delay RGMII TX and RX */
1038                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
1039                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
1040                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1041                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1042                            {miim_end,}
1043                            },
1044         (struct phy_cmd[]){     /* startup */
1045                            /* Status is read once to clear old link state */
1046                            {MIIM_STATUS, miim_read, NULL},
1047                            /* Auto-negotiate */
1048                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1049                            /* Read the status */
1050                            {MIIM_88E1011_PHY_STATUS, miim_read,
1051                             &mii_parse_88E1011_psr},
1052                            {miim_end,}
1053                            },
1054         (struct phy_cmd[]){     /* shutdown */
1055                            {miim_end,}
1056                            },
1057 };
1058
1059 static unsigned int m88e1145_setmode(uint mii_reg, struct tsec_private *priv)
1060 {
1061         uint mii_data = read_phy_reg(priv, mii_reg);
1062
1063         /* Setting MIIM_88E1145_PHY_EXT_CR */
1064         if (priv->flags & TSEC_REDUCED)
1065                 return mii_data |
1066                     MIIM_M88E1145_RGMII_RX_DELAY | MIIM_M88E1145_RGMII_TX_DELAY;
1067         else
1068                 return mii_data;
1069 }
1070
1071 static struct phy_info phy_info_M88E1145 = {
1072         0x01410cd,
1073         "Marvell 88E1145",
1074         4,
1075         (struct phy_cmd[]){     /* config */
1076                            /* Reset the PHY */
1077                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1078
1079                            /* Errata E0, E1 */
1080                            {29, 0x001b, NULL},
1081                            {30, 0x418f, NULL},
1082                            {29, 0x0016, NULL},
1083                            {30, 0xa2da, NULL},
1084
1085                            /* Configure the PHY */
1086                            {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
1087                            {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
1088                            {MIIM_88E1011_PHY_SCR, MIIM_88E1011_PHY_MDI_X_AUTO,
1089                             NULL},
1090                            {MIIM_88E1145_PHY_EXT_CR, 0, &m88e1145_setmode},
1091                            {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
1092                            {MIIM_CONTROL, MIIM_CONTROL_INIT, NULL},
1093                            {miim_end,}
1094                            },
1095         (struct phy_cmd[]){     /* startup */
1096                            /* Status is read once to clear old link state */
1097                            {MIIM_STATUS, miim_read, NULL},
1098                            /* Auto-negotiate */
1099                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1100                            {MIIM_88E1111_PHY_LED_CONTROL,
1101                             MIIM_88E1111_PHY_LED_DIRECT, NULL},
1102                            /* Read the Status */
1103                            {MIIM_88E1011_PHY_STATUS, miim_read,
1104                             &mii_parse_88E1011_psr},
1105                            {miim_end,}
1106                            },
1107         (struct phy_cmd[]){     /* shutdown */
1108                            {miim_end,}
1109                            },
1110 };
1111
1112 struct phy_info phy_info_cis8204 = {
1113         0x3f11,
1114         "Cicada Cis8204",
1115         6,
1116         (struct phy_cmd[]){     /* config */
1117                            /* Override PHY config settings */
1118                            {MIIM_CIS8201_AUX_CONSTAT,
1119                             MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
1120                            /* Configure some basic stuff */
1121                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1122                            {MIIM_CIS8204_SLED_CON, MIIM_CIS8204_SLEDCON_INIT,
1123                             &mii_cis8204_fixled},
1124                            {MIIM_CIS8204_EPHY_CON, MIIM_CIS8204_EPHYCON_INIT,
1125                             &mii_cis8204_setmode},
1126                            {miim_end,}
1127                            },
1128         (struct phy_cmd[]){     /* startup */
1129                            /* Read the Status (2x to make sure link is right) */
1130                            {MIIM_STATUS, miim_read, NULL},
1131                            /* Auto-negotiate */
1132                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1133                            /* Read the status */
1134                            {MIIM_CIS8201_AUX_CONSTAT, miim_read,
1135                             &mii_parse_cis8201},
1136                            {miim_end,}
1137                            },
1138         (struct phy_cmd[]){     /* shutdown */
1139                            {miim_end,}
1140                            },
1141 };
1142
1143 /* Cicada 8201 */
1144 struct phy_info phy_info_cis8201 = {
1145         0xfc41,
1146         "CIS8201",
1147         4,
1148         (struct phy_cmd[]){     /* config */
1149                            /* Override PHY config settings */
1150                            {MIIM_CIS8201_AUX_CONSTAT,
1151                             MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
1152                            /* Set up the interface mode */
1153                            {MIIM_CIS8201_EXT_CON1, MIIM_CIS8201_EXTCON1_INIT,
1154                             NULL},
1155                            /* Configure some basic stuff */
1156                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1157                            {miim_end,}
1158                            },
1159         (struct phy_cmd[]){     /* startup */
1160                            /* Read the Status (2x to make sure link is right) */
1161                            {MIIM_STATUS, miim_read, NULL},
1162                            /* Auto-negotiate */
1163                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1164                            /* Read the status */
1165                            {MIIM_CIS8201_AUX_CONSTAT, miim_read,
1166                             &mii_parse_cis8201},
1167                            {miim_end,}
1168                            },
1169         (struct phy_cmd[]){     /* shutdown */
1170                            {miim_end,}
1171                            },
1172 };
1173 struct phy_info phy_info_VSC8244 = {
1174         0x3f1b,
1175         "Vitesse VSC8244",
1176         6,
1177         (struct phy_cmd[]){     /* config */
1178                            /* Override PHY config settings */
1179                            /* Configure some basic stuff */
1180                            {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
1181                            {miim_end,}
1182                            },
1183         (struct phy_cmd[]){     /* startup */
1184                            /* Read the Status (2x to make sure link is right) */
1185                            {MIIM_STATUS, miim_read, NULL},
1186                            /* Auto-negotiate */
1187                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1188                            /* Read the status */
1189                            {MIIM_VSC8244_AUX_CONSTAT, miim_read,
1190                             &mii_parse_vsc8244},
1191                            {miim_end,}
1192                            },
1193         (struct phy_cmd[]){     /* shutdown */
1194                            {miim_end,}
1195                            },
1196 };
1197
1198 struct phy_info phy_info_dm9161 = {
1199         0x0181b88,
1200         "Davicom DM9161E",
1201         4,
1202         (struct phy_cmd[]){     /* config */
1203                            {MIIM_CONTROL, MIIM_DM9161_CR_STOP, NULL},
1204                            /* Do not bypass the scrambler/descrambler */
1205                            {MIIM_DM9161_SCR, MIIM_DM9161_SCR_INIT, NULL},
1206                            /* Clear 10BTCSR to default */
1207                            {MIIM_DM9161_10BTCSR, MIIM_DM9161_10BTCSR_INIT,
1208                             NULL},
1209                            /* Configure some basic stuff */
1210                            {MIIM_CONTROL, MIIM_CR_INIT, NULL},
1211                            /* Restart Auto Negotiation */
1212                            {MIIM_CONTROL, MIIM_DM9161_CR_RSTAN, NULL},
1213                            {miim_end,}
1214                            },
1215         (struct phy_cmd[]){     /* startup */
1216                            /* Status is read once to clear old link state */
1217                            {MIIM_STATUS, miim_read, NULL},
1218                            /* Auto-negotiate */
1219                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1220                            /* Read the status */
1221                            {MIIM_DM9161_SCSR, miim_read,
1222                             &mii_parse_dm9161_scsr},
1223                            {miim_end,}
1224                            },
1225         (struct phy_cmd[]){     /* shutdown */
1226                            {miim_end,}
1227                            },
1228 };
1229 /* a generic flavor.  */
1230 struct phy_info phy_info_generic =  {
1231         0,
1232         "Unknown/Generic PHY",
1233         32,
1234         (struct phy_cmd[]) { /* config */
1235                 {PHY_BMCR, PHY_BMCR_RESET, NULL},
1236                 {PHY_BMCR, PHY_BMCR_AUTON|PHY_BMCR_RST_NEG, NULL},
1237                 {miim_end,}
1238         },
1239         (struct phy_cmd[]) { /* startup */
1240                 {PHY_BMSR, miim_read, NULL},
1241                 {PHY_BMSR, miim_read, &mii_parse_sr},
1242                 {PHY_BMSR, miim_read, &mii_parse_link},
1243                 {miim_end,}
1244         },
1245         (struct phy_cmd[]) { /* shutdown */
1246                 {miim_end,}
1247         }
1248 };
1249
1250
1251 uint mii_parse_lxt971_sr2(uint mii_reg, struct tsec_private *priv)
1252 {
1253         unsigned int speed;
1254         if (priv->link) {
1255                 speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
1256
1257                 switch (speed) {
1258                 case MIIM_LXT971_SR2_10HDX:
1259                         priv->speed = 10;
1260                         priv->duplexity = 0;
1261                         break;
1262                 case MIIM_LXT971_SR2_10FDX:
1263                         priv->speed = 10;
1264                         priv->duplexity = 1;
1265                         break;
1266                 case MIIM_LXT971_SR2_100HDX:
1267                         priv->speed = 100;
1268                         priv->duplexity = 0;
1269                         break;
1270                 default:
1271                         priv->speed = 100;
1272                         priv->duplexity = 1;
1273                 }
1274         } else {
1275                 priv->speed = 0;
1276                 priv->duplexity = 0;
1277         }
1278
1279         return 0;
1280 }
1281
1282 static struct phy_info phy_info_lxt971 = {
1283         0x0001378e,
1284         "LXT971",
1285         4,
1286         (struct phy_cmd[]){     /* config */
1287                            {MIIM_CR, MIIM_CR_INIT, mii_cr_init},        /* autonegotiate */
1288                            {miim_end,}
1289                            },
1290         (struct phy_cmd[]){     /* startup - enable interrupts */
1291                            /* { 0x12, 0x00f2, NULL }, */
1292                            {MIIM_STATUS, miim_read, NULL},
1293                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1294                            {MIIM_LXT971_SR2, miim_read, &mii_parse_lxt971_sr2},
1295                            {miim_end,}
1296                            },
1297         (struct phy_cmd[]){     /* shutdown - disable interrupts */
1298                            {miim_end,}
1299                            },
1300 };
1301
1302 /* Parse the DP83865's link and auto-neg status register for speed and duplex
1303  * information
1304  */
1305 uint mii_parse_dp83865_lanr(uint mii_reg, struct tsec_private *priv)
1306 {
1307         switch (mii_reg & MIIM_DP83865_SPD_MASK) {
1308
1309         case MIIM_DP83865_SPD_1000:
1310                 priv->speed = 1000;
1311                 break;
1312
1313         case MIIM_DP83865_SPD_100:
1314                 priv->speed = 100;
1315                 break;
1316
1317         default:
1318                 priv->speed = 10;
1319                 break;
1320
1321         }
1322
1323         if (mii_reg & MIIM_DP83865_DPX_FULL)
1324                 priv->duplexity = 1;
1325         else
1326                 priv->duplexity = 0;
1327
1328         return 0;
1329 }
1330
1331 struct phy_info phy_info_dp83865 = {
1332         0x20005c7,
1333         "NatSemi DP83865",
1334         4,
1335         (struct phy_cmd[]){     /* config */
1336                            {MIIM_CONTROL, MIIM_DP83865_CR_INIT, NULL},
1337                            {miim_end,}
1338                            },
1339         (struct phy_cmd[]){     /* startup */
1340                            /* Status is read once to clear old link state */
1341                            {MIIM_STATUS, miim_read, NULL},
1342                            /* Auto-negotiate */
1343                            {MIIM_STATUS, miim_read, &mii_parse_sr},
1344                            /* Read the link and auto-neg status */
1345                            {MIIM_DP83865_LANR, miim_read,
1346                             &mii_parse_dp83865_lanr},
1347                            {miim_end,}
1348                            },
1349         (struct phy_cmd[]){     /* shutdown */
1350                            {miim_end,}
1351                            },
1352 };
1353
1354 struct phy_info *phy_info[] = {
1355         &phy_info_cis8204,
1356         &phy_info_cis8201,
1357         &phy_info_BCM5461S,
1358         &phy_info_BCM5464S,
1359         &phy_info_M88E1011S,
1360         &phy_info_M88E1111S,
1361         &phy_info_M88E1145,
1362         &phy_info_M88E1149S,
1363         &phy_info_dm9161,
1364         &phy_info_lxt971,
1365         &phy_info_VSC8244,
1366         &phy_info_dp83865,
1367         &phy_info_generic,
1368         NULL
1369 };
1370
1371 /* Grab the identifier of the device's PHY, and search through
1372  * all of the known PHYs to see if one matches.  If so, return
1373  * it, if not, return NULL
1374  */
1375 struct phy_info *get_phy_info(struct eth_device *dev)
1376 {
1377         struct tsec_private *priv = (struct tsec_private *)dev->priv;
1378         uint phy_reg, phy_ID;
1379         int i;
1380         struct phy_info *theInfo = NULL;
1381
1382         /* Grab the bits from PHYIR1, and put them in the upper half */
1383         phy_reg = read_phy_reg(priv, MIIM_PHYIR1);
1384         phy_ID = (phy_reg & 0xffff) << 16;
1385
1386         /* Grab the bits from PHYIR2, and put them in the lower half */
1387         phy_reg = read_phy_reg(priv, MIIM_PHYIR2);
1388         phy_ID |= (phy_reg & 0xffff);
1389
1390         /* loop through all the known PHY types, and find one that */
1391         /* matches the ID we read from the PHY. */
1392         for (i = 0; phy_info[i]; i++) {
1393                 if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift)) {
1394                         theInfo = phy_info[i];
1395                         break;
1396                 }
1397         }
1398
1399         if (theInfo == NULL) {
1400                 printf("%s: PHY id %x is not supported!\n", dev->name, phy_ID);
1401                 return NULL;
1402         } else {
1403                 debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
1404         }
1405
1406         return theInfo;
1407 }
1408
1409 /* Execute the given series of commands on the given device's
1410  * PHY, running functions as necessary
1411  */
1412 void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd)
1413 {
1414         int i;
1415         uint result;
1416         volatile tsec_t *phyregs = priv->phyregs;
1417
1418         phyregs->miimcfg = MIIMCFG_RESET;
1419
1420         phyregs->miimcfg = MIIMCFG_INIT_VALUE;
1421
1422         while (phyregs->miimind & MIIMIND_BUSY) ;
1423
1424         for (i = 0; cmd->mii_reg != miim_end; i++) {
1425                 if (cmd->mii_data == miim_read) {
1426                         result = read_phy_reg(priv, cmd->mii_reg);
1427
1428                         if (cmd->funct != NULL)
1429                                 (*(cmd->funct)) (result, priv);
1430
1431                 } else {
1432                         if (cmd->funct != NULL)
1433                                 result = (*(cmd->funct)) (cmd->mii_reg, priv);
1434                         else
1435                                 result = cmd->mii_data;
1436
1437                         write_phy_reg(priv, cmd->mii_reg, result);
1438
1439                 }
1440                 cmd++;
1441         }
1442 }
1443
1444 /* Relocate the function pointers in the phy cmd lists */
1445 static void relocate_cmds(void)
1446 {
1447         struct phy_cmd **cmdlistptr;
1448         struct phy_cmd *cmd;
1449         int i, j, k;
1450
1451         for (i = 0; phy_info[i]; i++) {
1452                 /* First thing's first: relocate the pointers to the
1453                  * PHY command structures (the structs were done) */
1454                 phy_info[i] = (struct phy_info *)((uint) phy_info[i]
1455                                                   + gd->reloc_off);
1456                 phy_info[i]->name += gd->reloc_off;
1457                 phy_info[i]->config =
1458                     (struct phy_cmd *)((uint) phy_info[i]->config
1459                                        + gd->reloc_off);
1460                 phy_info[i]->startup =
1461                     (struct phy_cmd *)((uint) phy_info[i]->startup
1462                                        + gd->reloc_off);
1463                 phy_info[i]->shutdown =
1464                     (struct phy_cmd *)((uint) phy_info[i]->shutdown
1465                                        + gd->reloc_off);
1466
1467                 cmdlistptr = &phy_info[i]->config;
1468                 j = 0;
1469                 for (; cmdlistptr <= &phy_info[i]->shutdown; cmdlistptr++) {
1470                         k = 0;
1471                         for (cmd = *cmdlistptr;
1472                              cmd->mii_reg != miim_end;
1473                              cmd++) {
1474                                 /* Only relocate non-NULL pointers */
1475                                 if (cmd->funct)
1476                                         cmd->funct += gd->reloc_off;
1477
1478                                 k++;
1479                         }
1480                         j++;
1481                 }
1482         }
1483
1484         relocated = 1;
1485 }
1486
1487 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
1488         && !defined(BITBANGMII)
1489
1490 struct tsec_private *get_priv_for_phy(unsigned char phyaddr)
1491 {
1492         int i;
1493
1494         for (i = 0; i < MAXCONTROLLERS; i++) {
1495                 if (privlist[i]->phyaddr == phyaddr)
1496                         return privlist[i];
1497         }
1498
1499         return NULL;
1500 }
1501
1502 /*
1503  * Read a MII PHY register.
1504  *
1505  * Returns:
1506  *  0 on success
1507  */
1508 static int tsec_miiphy_read(char *devname, unsigned char addr,
1509                             unsigned char reg, unsigned short *value)
1510 {
1511         unsigned short ret;
1512         struct tsec_private *priv = get_priv_for_phy(addr);
1513
1514         if (NULL == priv) {
1515                 printf("Can't read PHY at address %d\n", addr);
1516                 return -1;
1517         }
1518
1519         ret = (unsigned short)read_phy_reg(priv, reg);
1520         *value = ret;
1521
1522         return 0;
1523 }
1524
1525 /*
1526  * Write a MII PHY register.
1527  *
1528  * Returns:
1529  *  0 on success
1530  */
1531 static int tsec_miiphy_write(char *devname, unsigned char addr,
1532                              unsigned char reg, unsigned short value)
1533 {
1534         struct tsec_private *priv = get_priv_for_phy(addr);
1535
1536         if (NULL == priv) {
1537                 printf("Can't write PHY at address %d\n", addr);
1538                 return -1;
1539         }
1540
1541         write_phy_reg(priv, reg, value);
1542
1543         return 0;
1544 }
1545
1546 #endif
1547
1548 #ifdef CONFIG_MCAST_TFTP
1549
1550 /* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
1551
1552 /* Set the appropriate hash bit for the given addr */
1553
1554 /* The algorithm works like so:
1555  * 1) Take the Destination Address (ie the multicast address), and
1556  * do a CRC on it (little endian), and reverse the bits of the
1557  * result.
1558  * 2) Use the 8 most significant bits as a hash into a 256-entry
1559  * table.  The table is controlled through 8 32-bit registers:
1560  * gaddr0-7.  gaddr0's MSB is entry 0, and gaddr7's LSB is
1561  * gaddr7.  This means that the 3 most significant bits in the
1562  * hash index which gaddr register to use, and the 5 other bits
1563  * indicate which bit (assuming an IBM numbering scheme, which
1564  * for PowerPC (tm) is usually the case) in the tregister holds
1565  * the entry. */
1566 static int
1567 tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set)
1568 {
1569  struct tsec_private *priv = privlist[1];
1570  volatile tsec_t *regs = priv->regs;
1571  volatile u32  *reg_array, value;
1572  u8 result, whichbit, whichreg;
1573
1574         result = (u8)((ether_crc(MAC_ADDR_LEN,mcast_mac) >> 24) & 0xff);
1575         whichbit = result & 0x1f;       /* the 5 LSB = which bit to set */
1576         whichreg = result >> 5;         /* the 3 MSB = which reg to set it in */
1577         value = (1 << (31-whichbit));
1578
1579         reg_array = &(regs->hash.gaddr0);
1580
1581         if (set) {
1582                 reg_array[whichreg] |= value;
1583         } else {
1584                 reg_array[whichreg] &= ~value;
1585         }
1586         return 0;
1587 }
1588 #endif /* Multicast TFTP ? */
1589
1590 #endif /* CONFIG_TSEC_ENET */