LXR uboot/drivers/net/fsl

   1/*
   2 * (C) Copyright 2000-2004
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * (C) Copyright 2007 Freescale Semiconductor, Inc.
   6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
   7 *
   8 * See file CREDITS for list of people who contributed to this
   9 * project.
  10 *
  11 * This program is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License as
  13 * published by the Free Software Foundation; either version 2 of
  14 * the License, or (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24 * MA 02111-1307 USA
  25 */
  26
  27#include <common.h>
  28#include <malloc.h>
  29#include <command.h>
  30#include <config.h>
  31#include <net.h>
  32#include <miiphy.h>
  33
  34#undef  ET_DEBUG
  35#undef  MII_DEBUG
  36
  37/* Ethernet Transmit and Receive Buffers */
  38#define DBUF_LENGTH             1520
  39#define PKT_MAXBUF_SIZE         1518
  40#define PKT_MINBUF_SIZE         64
  41#define PKT_MAXBLR_SIZE         1536
  42#define LAST_PKTBUFSRX          PKTBUFSRX - 1
  43#define BD_ENET_RX_W_E          (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
  44#define BD_ENET_TX_RDY_LST      (BD_ENET_TX_READY | BD_ENET_TX_LAST)
  45#define FIFO_ERRSTAT            (FIFO_STAT_RXW | FIFO_STAT_UF | FIFO_STAT_OF)
  46
  47/* RxBD bits definitions */
  48#define BD_ENET_RX_ERR  (BD_ENET_RX_LG | BD_ENET_RX_NO | BD_ENET_RX_CR | \
  49                         BD_ENET_RX_OV | BD_ENET_RX_TR)
  50
  51#include <asm/immap.h>
  52#include <asm/fsl_mcdmafec.h>
  53
  54#include "MCD_dma.h"
  55
  56DECLARE_GLOBAL_DATA_PTR;
  57
  58struct fec_info_dma fec_info[] = {
  59#ifdef CONFIG_SYS_FEC0_IOBASE
  60        {
  61         0,                     /* index */
  62         CONFIG_SYS_FEC0_IOBASE,        /* io base */
  63         CONFIG_SYS_FEC0_PINMUX,        /* gpio pin muxing */
  64         CONFIG_SYS_FEC0_MIIBASE,       /* mii base */
  65         -1,                    /* phy_addr */
  66         0,                     /* duplex and speed */
  67         0,                     /* phy name */
  68         0,                     /* phyname init */
  69         0,                     /* RX BD */
  70         0,                     /* TX BD */
  71         0,                     /* rx Index */
  72         0,                     /* tx Index */
  73         0,                     /* tx buffer */
  74         0,                     /* initialized flag */
  75         (struct fec_info_dma *)-1,     /* next */
  76         FEC0_RX_TASK,          /* rxTask */
  77         FEC0_TX_TASK,          /* txTask */
  78         FEC0_RX_PRIORITY,      /* rxPri */
  79         FEC0_TX_PRIORITY,      /* txPri */
  80         FEC0_RX_INIT,          /* rxInit */
  81         FEC0_TX_INIT,          /* txInit */
  82         0,                     /* usedTbdIndex */
  83         0,                     /* cleanTbdNum */
  84         },
  85#endif
  86#ifdef CONFIG_SYS_FEC1_IOBASE
  87        {
  88         1,                     /* index */
  89         CONFIG_SYS_FEC1_IOBASE,        /* io base */
  90         CONFIG_SYS_FEC1_PINMUX,        /* gpio pin muxing */
  91         CONFIG_SYS_FEC1_MIIBASE,       /* mii base */
  92         -1,                    /* phy_addr */
  93         0,                     /* duplex and speed */
  94         0,                     /* phy name */
  95         0,                     /* phy name init */
  96#ifdef CONFIG_SYS_DMA_USE_INTSRAM
  97         (cbd_t *)DBUF_LENGTH,  /* RX BD */
  98#else
  99         0,                     /* RX BD */
 100#endif
 101         0,                     /* TX BD */
 102         0,                     /* rx Index */
 103         0,                     /* tx Index */
 104         0,                     /* tx buffer */
 105         0,                     /* initialized flag */
 106         (struct fec_info_dma *)-1,     /* next */
 107         FEC1_RX_TASK,          /* rxTask */
 108         FEC1_TX_TASK,          /* txTask */
 109         FEC1_RX_PRIORITY,      /* rxPri */
 110         FEC1_TX_PRIORITY,      /* txPri */
 111         FEC1_RX_INIT,          /* rxInit */
 112         FEC1_TX_INIT,          /* txInit */
 113         0,                     /* usedTbdIndex */
 114         0,                     /* cleanTbdNum */
 115         }
 116#endif
 117};
 118
 119static int fec_send(struct eth_device *dev, volatile void *packet, int length);
 120static int fec_recv(struct eth_device *dev);
 121static int fec_init(struct eth_device *dev, bd_t * bd);
 122static void fec_halt(struct eth_device *dev);
 123
 124#ifdef ET_DEBUG
 125static void dbg_fec_regs(struct eth_device *dev)
 126{
 127        struct fec_info_dma *info = dev->priv;
 128        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 129
 130        printf("=====\n");
 131        printf("ievent       %x - %x\n", (int)&fecp->eir, fecp->eir);
 132        printf("imask        %x - %x\n", (int)&fecp->eimr, fecp->eimr);
 133        printf("ecntrl       %x - %x\n", (int)&fecp->ecr, fecp->ecr);
 134        printf("mii_mframe   %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
 135        printf("mii_speed    %x - %x\n", (int)&fecp->mscr, fecp->mscr);
 136        printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
 137        printf("r_cntrl      %x - %x\n", (int)&fecp->rcr, fecp->rcr);
 138        printf("r hash       %x - %x\n", (int)&fecp->rhr, fecp->rhr);
 139        printf("x_cntrl      %x - %x\n", (int)&fecp->tcr, fecp->tcr);
 140        printf("padr_l       %x - %x\n", (int)&fecp->palr, fecp->palr);
 141        printf("padr_u       %x - %x\n", (int)&fecp->paur, fecp->paur);
 142        printf("op_pause     %x - %x\n", (int)&fecp->opd, fecp->opd);
 143        printf("iadr_u       %x - %x\n", (int)&fecp->iaur, fecp->iaur);
 144        printf("iadr_l       %x - %x\n", (int)&fecp->ialr, fecp->ialr);
 145        printf("gadr_u       %x - %x\n", (int)&fecp->gaur, fecp->gaur);
 146        printf("gadr_l       %x - %x\n", (int)&fecp->galr, fecp->galr);
 147        printf("x_wmrk       %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
 148        printf("r_fdata      %x - %x\n", (int)&fecp->rfdr, fecp->rfdr);
 149        printf("r_fstat      %x - %x\n", (int)&fecp->rfsr, fecp->rfsr);
 150        printf("r_fctrl      %x - %x\n", (int)&fecp->rfcr, fecp->rfcr);
 151        printf("r_flrfp      %x - %x\n", (int)&fecp->rlrfp, fecp->rlrfp);
 152        printf("r_flwfp      %x - %x\n", (int)&fecp->rlwfp, fecp->rlwfp);
 153        printf("r_frfar      %x - %x\n", (int)&fecp->rfar, fecp->rfar);
 154        printf("r_frfrp      %x - %x\n", (int)&fecp->rfrp, fecp->rfrp);
 155        printf("r_frfwp      %x - %x\n", (int)&fecp->rfwp, fecp->rfwp);
 156        printf("t_fdata      %x - %x\n", (int)&fecp->tfdr, fecp->tfdr);
 157        printf("t_fstat      %x - %x\n", (int)&fecp->tfsr, fecp->tfsr);
 158        printf("t_fctrl      %x - %x\n", (int)&fecp->tfcr, fecp->tfcr);
 159        printf("t_flrfp      %x - %x\n", (int)&fecp->tlrfp, fecp->tlrfp);
 160        printf("t_flwfp      %x - %x\n", (int)&fecp->tlwfp, fecp->tlwfp);
 161        printf("t_ftfar      %x - %x\n", (int)&fecp->tfar, fecp->tfar);
 162        printf("t_ftfrp      %x - %x\n", (int)&fecp->tfrp, fecp->tfrp);
 163        printf("t_ftfwp      %x - %x\n", (int)&fecp->tfwp, fecp->tfwp);
 164        printf("frst         %x - %x\n", (int)&fecp->frst, fecp->frst);
 165        printf("ctcwr        %x - %x\n", (int)&fecp->ctcwr, fecp->ctcwr);
 166}
 167#endif
 168
 169static void set_fec_duplex_speed(volatile fecdma_t * fecp, bd_t * bd,
 170                                 int dup_spd)
 171{
 172        if ((dup_spd >> 16) == FULL) {
 173                /* Set maximum frame length */
 174                fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
 175                    FEC_RCR_PROM | 0x100;
 176                fecp->tcr = FEC_TCR_FDEN;
 177        } else {
 178                /* Half duplex mode */
 179                fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
 180                    FEC_RCR_MII_MODE | FEC_RCR_DRT;
 181                fecp->tcr &= ~FEC_TCR_FDEN;
 182        }
 183
 184        if ((dup_spd & 0xFFFF) == _100BASET) {
 185#ifdef MII_DEBUG
 186                printf("100Mbps\n");
 187#endif
 188                bd->bi_ethspeed = 100;
 189        } else {
 190#ifdef MII_DEBUG
 191                printf("10Mbps\n");
 192#endif
 193                bd->bi_ethspeed = 10;
 194        }
 195}
 196
 197static int fec_send(struct eth_device *dev, volatile void *packet, int length)
 198{
 199        struct fec_info_dma *info = dev->priv;
 200        cbd_t *pTbd, *pUsedTbd;
 201        u16 phyStatus;
 202
 203        miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &phyStatus);
 204
 205        /* process all the consumed TBDs */
 206        while (info->cleanTbdNum < CONFIG_SYS_TX_ETH_BUFFER) {
 207                pUsedTbd = &info->txbd[info->usedTbdIdx];
 208                if (pUsedTbd->cbd_sc & BD_ENET_TX_READY) {
 209#ifdef ET_DEBUG
 210                        printf("Cannot clean TBD %d, in use\n",
 211                               info->cleanTbdNum);
 212#endif
 213                        return 0;
 214                }
 215
 216                /* clean this buffer descriptor */
 217                if (info->usedTbdIdx == (CONFIG_SYS_TX_ETH_BUFFER - 1))
 218                        pUsedTbd->cbd_sc = BD_ENET_TX_WRAP;
 219                else
 220                        pUsedTbd->cbd_sc = 0;
 221
 222                /* update some indeces for a correct handling of the TBD ring */
 223                info->cleanTbdNum++;
 224                info->usedTbdIdx = (info->usedTbdIdx + 1) % CONFIG_SYS_TX_ETH_BUFFER;
 225        }
 226
 227        /* Check for valid length of data. */
 228        if ((length > 1500) || (length <= 0)) {
 229                return -1;
 230        }
 231
 232        /* Check the number of vacant TxBDs. */
 233        if (info->cleanTbdNum < 1) {
 234                printf("No available TxBDs ...\n");
 235                return -1;
 236        }
 237
 238        /* Get the first TxBD to send the mac header */
 239        pTbd = &info->txbd[info->txIdx];
 240        pTbd->cbd_datlen = length;
 241        pTbd->cbd_bufaddr = (u32) packet;
 242        pTbd->cbd_sc |= BD_ENET_TX_LAST | BD_ENET_TX_TC | BD_ENET_TX_READY;
 243        info->txIdx = (info->txIdx + 1) % CONFIG_SYS_TX_ETH_BUFFER;
 244
 245        /* Enable DMA transmit task */
 246        MCD_continDma(info->txTask);
 247
 248        info->cleanTbdNum -= 1;
 249
 250        /* wait until frame is sent . */
 251        while (pTbd->cbd_sc & BD_ENET_TX_READY) {
 252                udelay(10);
 253        }
 254
 255        return (int)(info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
 256}
 257
 258static int fec_recv(struct eth_device *dev)
 259{
 260        struct fec_info_dma *info = dev->priv;
 261        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 262
 263        cbd_t *pRbd = &info->rxbd[info->rxIdx];
 264        u32 ievent;
 265        int frame_length, len = 0;
 266
 267        /* Check if any critical events have happened */
 268        ievent = fecp->eir;
 269        if (ievent != 0) {
 270                fecp->eir = ievent;
 271
 272                if (ievent & (FEC_EIR_BABT | FEC_EIR_TXERR | FEC_EIR_RXERR)) {
 273                        printf("fec_recv: error\n");
 274                        fec_halt(dev);
 275                        fec_init(dev, NULL);
 276                        return 0;
 277                }
 278
 279                if (ievent & FEC_EIR_HBERR) {
 280                        /* Heartbeat error */
 281                        fecp->tcr |= FEC_TCR_GTS;
 282                }
 283
 284                if (ievent & FEC_EIR_GRA) {
 285                        /* Graceful stop complete */
 286                        if (fecp->tcr & FEC_TCR_GTS) {
 287                                printf("fec_recv: tcr_gts\n");
 288                                fec_halt(dev);
 289                                fecp->tcr &= ~FEC_TCR_GTS;
 290                                fec_init(dev, NULL);
 291                        }
 292                }
 293        }
 294
 295        if (!(pRbd->cbd_sc & BD_ENET_RX_EMPTY)) {
 296                if ((pRbd->cbd_sc & BD_ENET_RX_LAST)
 297                    && !(pRbd->cbd_sc & BD_ENET_RX_ERR)
 298                    && ((pRbd->cbd_datlen - 4) > 14)) {
 299
 300                        /* Get buffer address and size */
 301                        frame_length = pRbd->cbd_datlen - 4;
 302
 303                        /* Fill the buffer and pass it to upper layers */
 304                        NetReceive((volatile uchar *)pRbd->cbd_bufaddr,
 305                                   frame_length);
 306                        len = frame_length;
 307                }
 308
 309                /* Reset buffer descriptor as empty */
 310                if ((info->rxIdx) == (PKTBUFSRX - 1))
 311                        pRbd->cbd_sc = (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY);
 312                else
 313                        pRbd->cbd_sc = BD_ENET_RX_EMPTY;
 314
 315                pRbd->cbd_datlen = PKTSIZE_ALIGN;
 316
 317                /* Now, we have an empty RxBD, restart the DMA receive task */
 318                MCD_continDma(info->rxTask);
 319
 320                /* Increment BD count */
 321                info->rxIdx = (info->rxIdx + 1) % PKTBUFSRX;
 322        }
 323
 324        return len;
 325}
 326
 327static void fec_set_hwaddr(volatile fecdma_t * fecp, u8 * mac)
 328{
 329        u8 currByte;            /* byte for which to compute the CRC */
 330        int byte;               /* loop - counter */
 331        int bit;                /* loop - counter */
 332        u32 crc = 0xffffffff;   /* initial value */
 333
 334        for (byte = 0; byte < 6; byte++) {
 335                currByte = mac[byte];
 336                for (bit = 0; bit < 8; bit++) {
 337                        if ((currByte & 0x01) ^ (crc & 0x01)) {
 338                                crc >>= 1;
 339                                crc = crc ^ 0xedb88320;
 340                        } else {
 341                                crc >>= 1;
 342                        }
 343                        currByte >>= 1;
 344                }
 345        }
 346
 347        crc = crc >> 26;
 348
 349        /* Set individual hash table register */
 350        if (crc >= 32) {
 351                fecp->ialr = (1 << (crc - 32));
 352                fecp->iaur = 0;
 353        } else {
 354                fecp->ialr = 0;
 355                fecp->iaur = (1 << crc);
 356        }
 357
 358        /* Set physical address */
 359        fecp->palr = (mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3];
 360        fecp->paur = (mac[4] << 24) + (mac[5] << 16) + 0x8808;
 361
 362        /* Clear multicast address hash table */
 363        fecp->gaur = 0;
 364        fecp->galr = 0;
 365}
 366
 367static int fec_init(struct eth_device *dev, bd_t * bd)
 368{
 369        struct fec_info_dma *info = dev->priv;
 370        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 371        int i;
 372
 373#ifdef ET_DEBUG
 374        printf("fec_init: iobase 0x%08x ...\n", info->iobase);
 375#endif
 376
 377        fecpin_setclear(dev, 1);
 378
 379        fec_halt(dev);
 380
 381#if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \
 382        defined (CONFIG_SYS_DISCOVER_PHY)
 383
 384        mii_init();
 385
 386        set_fec_duplex_speed(fecp, bd, info->dup_spd);
 387#else
 388#ifndef CONFIG_SYS_DISCOVER_PHY
 389        set_fec_duplex_speed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
 390#endif                          /* ifndef CONFIG_SYS_DISCOVER_PHY */
 391#endif                          /* CONFIG_CMD_MII || CONFIG_MII */
 392
 393        /* We use strictly polling mode only */
 394        fecp->eimr = 0;
 395
 396        /* Clear any pending interrupt */
 397        fecp->eir = 0xffffffff;
 398
 399        /* Set station address   */
 400        if ((u32) fecp == CONFIG_SYS_FEC0_IOBASE) {
 401                fec_set_hwaddr(fecp, bd->bi_enetaddr);
 402        } else {
 403                fec_set_hwaddr(fecp, bd->bi_enet1addr);
 404        }
 405
 406        /* Set Opcode/Pause Duration Register */
 407        fecp->opd = 0x00010020;
 408
 409        /* Setup Buffers and Buffer Desriptors */
 410        info->rxIdx = 0;
 411        info->txIdx = 0;
 412
 413        /* Setup Receiver Buffer Descriptors (13.14.24.18)
 414         * Settings:     Empty, Wrap */
 415        for (i = 0; i < PKTBUFSRX; i++) {
 416                info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
 417                info->rxbd[i].cbd_datlen = PKTSIZE_ALIGN;
 418                info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
 419        }
 420        info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
 421
 422        /* Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
 423         * Settings:    Last, Tx CRC */
 424        for (i = 0; i < CONFIG_SYS_TX_ETH_BUFFER; i++) {
 425                info->txbd[i].cbd_sc = 0;
 426                info->txbd[i].cbd_datlen = 0;
 427                info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
 428        }
 429        info->txbd[CONFIG_SYS_TX_ETH_BUFFER - 1].cbd_sc |= BD_ENET_TX_WRAP;
 430
 431        info->usedTbdIdx = 0;
 432        info->cleanTbdNum = CONFIG_SYS_TX_ETH_BUFFER;
 433
 434        /* Set Rx FIFO alarm and granularity value */
 435        fecp->rfcr = 0x0c000000;
 436        fecp->rfar = 0x0000030c;
 437
 438        /* Set Tx FIFO granularity value */
 439        fecp->tfcr = FIFO_CTRL_FRAME | FIFO_CTRL_GR(6) | 0x00040000;
 440        fecp->tfar = 0x00000080;
 441
 442        fecp->tfwr = 0x2;
 443        fecp->ctcwr = 0x03000000;
 444
 445        /* Enable DMA receive task */
 446        MCD_startDma(info->rxTask,      /* Dma channel */
 447                     (s8 *) info->rxbd, /*Source Address */
 448                     0,         /* Source increment */
 449                     (s8 *) (&fecp->rfdr),      /* dest */
 450                     4,         /* dest increment */
 451                     0,         /* DMA size */
 452                     4,         /* xfer size */
 453                     info->rxInit,      /* initiator */
 454                     info->rxPri,       /* priority */
 455                     (MCD_FECRX_DMA | MCD_TT_FLAGS_DEF),        /* Flags */
 456                     (MCD_NO_CSUM | MCD_NO_BYTE_SWAP)   /* Function description */
 457            );
 458
 459        /* Enable DMA tx task with no ready buffer descriptors */
 460        MCD_startDma(info->txTask,      /* Dma channel */
 461                     (s8 *) info->txbd, /*Source Address */
 462                     0,         /* Source increment */
 463                     (s8 *) (&fecp->tfdr),      /* dest */
 464                     4,         /* dest incr */
 465                     0,         /* DMA size */
 466                     4,         /* xfer size */
 467                     info->txInit,      /* initiator */
 468                     info->txPri,       /* priority */
 469                     (MCD_FECTX_DMA | MCD_TT_FLAGS_DEF),        /* Flags */
 470                     (MCD_NO_CSUM | MCD_NO_BYTE_SWAP)   /* Function description */
 471            );
 472
 473        /* Now enable the transmit and receive processing */
 474        fecp->ecr |= FEC_ECR_ETHER_EN;
 475
 476        return 1;
 477}
 478
 479static void fec_halt(struct eth_device *dev)
 480{
 481        struct fec_info_dma *info = dev->priv;
 482        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 483        int counter = 0xffff;
 484
 485        /* issue graceful stop command to the FEC transmitter if necessary */
 486        fecp->tcr |= FEC_TCR_GTS;
 487
 488        /* wait for graceful stop to register */
 489        while ((counter--) && (!(fecp->eir & FEC_EIR_GRA))) ;
 490
 491        /* Disable DMA tasks */
 492        MCD_killDma(info->txTask);
 493        MCD_killDma(info->rxTask);;
 494
 495        /* Disable the Ethernet Controller */
 496        fecp->ecr &= ~FEC_ECR_ETHER_EN;
 497
 498        /* Clear FIFO status registers */
 499        fecp->rfsr &= FIFO_ERRSTAT;
 500        fecp->tfsr &= FIFO_ERRSTAT;
 501
 502        fecp->frst = 0x01000000;
 503
 504        /* Issue a reset command to the FEC chip */
 505        fecp->ecr |= FEC_ECR_RESET;
 506
 507        /* wait at least 20 clock cycles */
 508        udelay(10000);
 509
 510#ifdef ET_DEBUG
 511        printf("Ethernet task stopped\n");
 512#endif
 513}
 514
 515int mcdmafec_initialize(bd_t * bis)
 516{
 517        struct eth_device *dev;
 518        int i;
 519#ifdef CONFIG_SYS_DMA_USE_INTSRAM
 520        u32 tmp = CONFIG_SYS_INTSRAM + 0x2000;
 521#endif
 522
 523        for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
 524
 525                dev =
 526                    (struct eth_device *)memalign(CONFIG_SYS_CACHELINE_SIZE,
 527                                                  sizeof *dev);
 528                if (dev == NULL)
 529                        hang();
 530
 531                memset(dev, 0, sizeof(*dev));
 532
 533                sprintf(dev->name, "FEC%d", fec_info[i].index);
 534
 535                dev->priv = &fec_info[i];
 536                dev->init = fec_init;
 537                dev->halt = fec_halt;
 538                dev->send = fec_send;
 539                dev->recv = fec_recv;
 540
 541                /* setup Receive and Transmit buffer descriptor */
 542#ifdef CONFIG_SYS_DMA_USE_INTSRAM
 543                fec_info[i].rxbd = (cbd_t *)((u32)fec_info[i].rxbd + tmp);
 544                tmp = (u32)fec_info[i].rxbd;
 545                fec_info[i].txbd =
 546                    (cbd_t *)((u32)fec_info[i].txbd + tmp +
 547                    (PKTBUFSRX * sizeof(cbd_t)));
 548                tmp = (u32)fec_info[i].txbd;
 549                fec_info[i].txbuf =
 550                    (char *)((u32)fec_info[i].txbuf + tmp +
 551                    (CONFIG_SYS_TX_ETH_BUFFER * sizeof(cbd_t)));
 552                tmp = (u32)fec_info[i].txbuf;
 553#else
 554                fec_info[i].rxbd =
 555                    (cbd_t *) memalign(CONFIG_SYS_CACHELINE_SIZE,
 556                                       (PKTBUFSRX * sizeof(cbd_t)));
 557                fec_info[i].txbd =
 558                    (cbd_t *) memalign(CONFIG_SYS_CACHELINE_SIZE,
 559                                       (CONFIG_SYS_TX_ETH_BUFFER * sizeof(cbd_t)));
 560                fec_info[i].txbuf =
 561                    (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, DBUF_LENGTH);
 562#endif
 563
 564#ifdef ET_DEBUG
 565                printf("rxbd %x txbd %x\n",
 566                       (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
 567#endif
 568
 569                fec_info[i].phy_name = (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, 32);
 570
 571                eth_register(dev);
 572
 573#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 574                miiphy_register(dev->name,
 575                                mcffec_miiphy_read, mcffec_miiphy_write);
 576#endif
 577
 578                if (i > 0)
 579                        fec_info[i - 1].next = &fec_info[i];
 580        }
 581        fec_info[i - 1].next = &fec_info[0];
 582
 583        /* default speed */
 584        bis->bi_ethspeed = 10;
 585
 586        return 0;
 587}
 588