LXR uboot/drivers/net/fsl

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2000-2004
   4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5 *
   6 * (C) Copyright 2007 Freescale Semiconductor, Inc.
   7 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
   8 */
   9
  10#include <common.h>
  11#include <env.h>
  12#include <malloc.h>
  13#include <command.h>
  14#include <config.h>
  15#include <net.h>
  16#include <miiphy.h>
  17#include <linux/mii.h>
  18
  19#undef  ET_DEBUG
  20#undef  MII_DEBUG
  21
  22/* Ethernet Transmit and Receive Buffers */
  23#define DBUF_LENGTH             1520
  24#define PKT_MAXBUF_SIZE         1518
  25#define PKT_MINBUF_SIZE         64
  26#define PKT_MAXBLR_SIZE         1536
  27#define LAST_PKTBUFSRX          PKTBUFSRX - 1
  28#define BD_ENET_RX_W_E          (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
  29#define BD_ENET_TX_RDY_LST      (BD_ENET_TX_READY | BD_ENET_TX_LAST)
  30#define FIFO_ERRSTAT            (FIFO_STAT_RXW | FIFO_STAT_UF | FIFO_STAT_OF)
  31
  32/* RxBD bits definitions */
  33#define BD_ENET_RX_ERR  (BD_ENET_RX_LG | BD_ENET_RX_NO | BD_ENET_RX_CR | \
  34                         BD_ENET_RX_OV | BD_ENET_RX_TR)
  35
  36#include <asm/immap.h>
  37#include <asm/fsl_mcdmafec.h>
  38
  39#include "MCD_dma.h"
  40
  41struct fec_info_dma fec_info[] = {
  42#ifdef CONFIG_SYS_FEC0_IOBASE
  43        {
  44         0,                     /* index */
  45         CONFIG_SYS_FEC0_IOBASE,        /* io base */
  46         CONFIG_SYS_FEC0_PINMUX,        /* gpio pin muxing */
  47         CONFIG_SYS_FEC0_MIIBASE,       /* mii base */
  48         -1,                    /* phy_addr */
  49         0,                     /* duplex and speed */
  50         0,                     /* phy name */
  51         0,                     /* phyname init */
  52         0,                     /* RX BD */
  53         0,                     /* TX BD */
  54         0,                     /* rx Index */
  55         0,                     /* tx Index */
  56         0,                     /* tx buffer */
  57         0,                     /* initialized flag */
  58         (struct fec_info_dma *)-1,     /* next */
  59         FEC0_RX_TASK,          /* rxTask */
  60         FEC0_TX_TASK,          /* txTask */
  61         FEC0_RX_PRIORITY,      /* rxPri */
  62         FEC0_TX_PRIORITY,      /* txPri */
  63         FEC0_RX_INIT,          /* rxInit */
  64         FEC0_TX_INIT,          /* txInit */
  65         0,                     /* usedTbdIndex */
  66         0,                     /* cleanTbdNum */
  67         },
  68#endif
  69#ifdef CONFIG_SYS_FEC1_IOBASE
  70        {
  71         1,                     /* index */
  72         CONFIG_SYS_FEC1_IOBASE,        /* io base */
  73         CONFIG_SYS_FEC1_PINMUX,        /* gpio pin muxing */
  74         CONFIG_SYS_FEC1_MIIBASE,       /* mii base */
  75         -1,                    /* phy_addr */
  76         0,                     /* duplex and speed */
  77         0,                     /* phy name */
  78         0,                     /* phy name init */
  79#ifdef CONFIG_SYS_DMA_USE_INTSRAM
  80         (cbd_t *)DBUF_LENGTH,  /* RX BD */
  81#else
  82         0,                     /* RX BD */
  83#endif
  84         0,                     /* TX BD */
  85         0,                     /* rx Index */
  86         0,                     /* tx Index */
  87         0,                     /* tx buffer */
  88         0,                     /* initialized flag */
  89         (struct fec_info_dma *)-1,     /* next */
  90         FEC1_RX_TASK,          /* rxTask */
  91         FEC1_TX_TASK,          /* txTask */
  92         FEC1_RX_PRIORITY,      /* rxPri */
  93         FEC1_TX_PRIORITY,      /* txPri */
  94         FEC1_RX_INIT,          /* rxInit */
  95         FEC1_TX_INIT,          /* txInit */
  96         0,                     /* usedTbdIndex */
  97         0,                     /* cleanTbdNum */
  98         }
  99#endif
 100};
 101
 102static int fec_send(struct eth_device *dev, void *packet, int length);
 103static int fec_recv(struct eth_device *dev);
 104static int fec_init(struct eth_device *dev, bd_t * bd);
 105static void fec_halt(struct eth_device *dev);
 106
 107#ifdef ET_DEBUG
 108static void dbg_fec_regs(struct eth_device *dev)
 109{
 110        struct fec_info_dma *info = dev->priv;
 111        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 112
 113        printf("=====\n");
 114        printf("ievent       %x - %x\n", (int)&fecp->eir, fecp->eir);
 115        printf("imask        %x - %x\n", (int)&fecp->eimr, fecp->eimr);
 116        printf("ecntrl       %x - %x\n", (int)&fecp->ecr, fecp->ecr);
 117        printf("mii_mframe   %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
 118        printf("mii_speed    %x - %x\n", (int)&fecp->mscr, fecp->mscr);
 119        printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
 120        printf("r_cntrl      %x - %x\n", (int)&fecp->rcr, fecp->rcr);
 121        printf("r hash       %x - %x\n", (int)&fecp->rhr, fecp->rhr);
 122        printf("x_cntrl      %x - %x\n", (int)&fecp->tcr, fecp->tcr);
 123        printf("padr_l       %x - %x\n", (int)&fecp->palr, fecp->palr);
 124        printf("padr_u       %x - %x\n", (int)&fecp->paur, fecp->paur);
 125        printf("op_pause     %x - %x\n", (int)&fecp->opd, fecp->opd);
 126        printf("iadr_u       %x - %x\n", (int)&fecp->iaur, fecp->iaur);
 127        printf("iadr_l       %x - %x\n", (int)&fecp->ialr, fecp->ialr);
 128        printf("gadr_u       %x - %x\n", (int)&fecp->gaur, fecp->gaur);
 129        printf("gadr_l       %x - %x\n", (int)&fecp->galr, fecp->galr);
 130        printf("x_wmrk       %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
 131        printf("r_fdata      %x - %x\n", (int)&fecp->rfdr, fecp->rfdr);
 132        printf("r_fstat      %x - %x\n", (int)&fecp->rfsr, fecp->rfsr);
 133        printf("r_fctrl      %x - %x\n", (int)&fecp->rfcr, fecp->rfcr);
 134        printf("r_flrfp      %x - %x\n", (int)&fecp->rlrfp, fecp->rlrfp);
 135        printf("r_flwfp      %x - %x\n", (int)&fecp->rlwfp, fecp->rlwfp);
 136        printf("r_frfar      %x - %x\n", (int)&fecp->rfar, fecp->rfar);
 137        printf("r_frfrp      %x - %x\n", (int)&fecp->rfrp, fecp->rfrp);
 138        printf("r_frfwp      %x - %x\n", (int)&fecp->rfwp, fecp->rfwp);
 139        printf("t_fdata      %x - %x\n", (int)&fecp->tfdr, fecp->tfdr);
 140        printf("t_fstat      %x - %x\n", (int)&fecp->tfsr, fecp->tfsr);
 141        printf("t_fctrl      %x - %x\n", (int)&fecp->tfcr, fecp->tfcr);
 142        printf("t_flrfp      %x - %x\n", (int)&fecp->tlrfp, fecp->tlrfp);
 143        printf("t_flwfp      %x - %x\n", (int)&fecp->tlwfp, fecp->tlwfp);
 144        printf("t_ftfar      %x - %x\n", (int)&fecp->tfar, fecp->tfar);
 145        printf("t_ftfrp      %x - %x\n", (int)&fecp->tfrp, fecp->tfrp);
 146        printf("t_ftfwp      %x - %x\n", (int)&fecp->tfwp, fecp->tfwp);
 147        printf("frst         %x - %x\n", (int)&fecp->frst, fecp->frst);
 148        printf("ctcwr        %x - %x\n", (int)&fecp->ctcwr, fecp->ctcwr);
 149}
 150#endif
 151
 152static void set_fec_duplex_speed(volatile fecdma_t * fecp, bd_t * bd,
 153                                 int dup_spd)
 154{
 155        if ((dup_spd >> 16) == FULL) {
 156                /* Set maximum frame length */
 157                fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
 158                    FEC_RCR_PROM | 0x100;
 159                fecp->tcr = FEC_TCR_FDEN;
 160        } else {
 161                /* Half duplex mode */
 162                fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
 163                    FEC_RCR_MII_MODE | FEC_RCR_DRT;
 164                fecp->tcr &= ~FEC_TCR_FDEN;
 165        }
 166
 167        if ((dup_spd & 0xFFFF) == _100BASET) {
 168#ifdef MII_DEBUG
 169                printf("100Mbps\n");
 170#endif
 171                bd->bi_ethspeed = 100;
 172        } else {
 173#ifdef MII_DEBUG
 174                printf("10Mbps\n");
 175#endif
 176                bd->bi_ethspeed = 10;
 177        }
 178}
 179
 180static int fec_send(struct eth_device *dev, void *packet, int length)
 181{
 182        struct fec_info_dma *info = dev->priv;
 183        cbd_t *pTbd, *pUsedTbd;
 184        u16 phyStatus;
 185
 186        miiphy_read(dev->name, info->phy_addr, MII_BMSR, &phyStatus);
 187
 188        /* process all the consumed TBDs */
 189        while (info->cleanTbdNum < CONFIG_SYS_TX_ETH_BUFFER) {
 190                pUsedTbd = &info->txbd[info->usedTbdIdx];
 191                if (pUsedTbd->cbd_sc & BD_ENET_TX_READY) {
 192#ifdef ET_DEBUG
 193                        printf("Cannot clean TBD %d, in use\n",
 194                               info->cleanTbdNum);
 195#endif
 196                        return 0;
 197                }
 198
 199                /* clean this buffer descriptor */
 200                if (info->usedTbdIdx == (CONFIG_SYS_TX_ETH_BUFFER - 1))
 201                        pUsedTbd->cbd_sc = BD_ENET_TX_WRAP;
 202                else
 203                        pUsedTbd->cbd_sc = 0;
 204
 205                /* update some indeces for a correct handling of the TBD ring */
 206                info->cleanTbdNum++;
 207                info->usedTbdIdx = (info->usedTbdIdx + 1) % CONFIG_SYS_TX_ETH_BUFFER;
 208        }
 209
 210        /* Check for valid length of data. */
 211        if ((length > 1500) || (length <= 0)) {
 212                return -1;
 213        }
 214
 215        /* Check the number of vacant TxBDs. */
 216        if (info->cleanTbdNum < 1) {
 217                printf("No available TxBDs ...\n");
 218                return -1;
 219        }
 220
 221        /* Get the first TxBD to send the mac header */
 222        pTbd = &info->txbd[info->txIdx];
 223        pTbd->cbd_datlen = length;
 224        pTbd->cbd_bufaddr = (u32) packet;
 225        pTbd->cbd_sc |= BD_ENET_TX_LAST | BD_ENET_TX_TC | BD_ENET_TX_READY;
 226        info->txIdx = (info->txIdx + 1) % CONFIG_SYS_TX_ETH_BUFFER;
 227
 228        /* Enable DMA transmit task */
 229        MCD_continDma(info->txTask);
 230
 231        info->cleanTbdNum -= 1;
 232
 233        /* wait until frame is sent . */
 234        while (pTbd->cbd_sc & BD_ENET_TX_READY) {
 235                udelay(10);
 236        }
 237
 238        return (int)(info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
 239}
 240
 241static int fec_recv(struct eth_device *dev)
 242{
 243        struct fec_info_dma *info = dev->priv;
 244        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 245
 246        cbd_t *prbd = &info->rxbd[info->rxIdx];
 247        u32 ievent;
 248        int frame_length, len = 0;
 249
 250        /* Check if any critical events have happened */
 251        ievent = fecp->eir;
 252        if (ievent != 0) {
 253                fecp->eir = ievent;
 254
 255                if (ievent & (FEC_EIR_BABT | FEC_EIR_TXERR | FEC_EIR_RXERR)) {
 256                        printf("fec_recv: error\n");
 257                        fec_halt(dev);
 258                        fec_init(dev, NULL);
 259                        return 0;
 260                }
 261
 262                if (ievent & FEC_EIR_HBERR) {
 263                        /* Heartbeat error */
 264                        fecp->tcr |= FEC_TCR_GTS;
 265                }
 266
 267                if (ievent & FEC_EIR_GRA) {
 268                        /* Graceful stop complete */
 269                        if (fecp->tcr & FEC_TCR_GTS) {
 270                                printf("fec_recv: tcr_gts\n");
 271                                fec_halt(dev);
 272                                fecp->tcr &= ~FEC_TCR_GTS;
 273                                fec_init(dev, NULL);
 274                        }
 275                }
 276        }
 277
 278        if (!(prbd->cbd_sc & BD_ENET_RX_EMPTY)) {
 279                if ((prbd->cbd_sc & BD_ENET_RX_LAST) &&
 280                    !(prbd->cbd_sc & BD_ENET_RX_ERR) &&
 281                    ((prbd->cbd_datlen - 4) > 14)) {
 282
 283                        /* Get buffer address and size */
 284                        frame_length = prbd->cbd_datlen - 4;
 285
 286                        /* Fill the buffer and pass it to upper layers */
 287                        net_process_received_packet((uchar *)prbd->cbd_bufaddr,
 288                                                    frame_length);
 289                        len = frame_length;
 290                }
 291
 292                /* Reset buffer descriptor as empty */
 293                if ((info->rxIdx) == (PKTBUFSRX - 1))
 294                        prbd->cbd_sc = (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY);
 295                else
 296                        prbd->cbd_sc = BD_ENET_RX_EMPTY;
 297
 298                prbd->cbd_datlen = PKTSIZE_ALIGN;
 299
 300                /* Now, we have an empty RxBD, restart the DMA receive task */
 301                MCD_continDma(info->rxTask);
 302
 303                /* Increment BD count */
 304                info->rxIdx = (info->rxIdx + 1) % PKTBUFSRX;
 305        }
 306
 307        return len;
 308}
 309
 310static void fec_set_hwaddr(volatile fecdma_t * fecp, u8 * mac)
 311{
 312        u8 currByte;            /* byte for which to compute the CRC */
 313        int byte;               /* loop - counter */
 314        int bit;                /* loop - counter */
 315        u32 crc = 0xffffffff;   /* initial value */
 316
 317        for (byte = 0; byte < 6; byte++) {
 318                currByte = mac[byte];
 319                for (bit = 0; bit < 8; bit++) {
 320                        if ((currByte & 0x01) ^ (crc & 0x01)) {
 321                                crc >>= 1;
 322                                crc = crc ^ 0xedb88320;
 323                        } else {
 324                                crc >>= 1;
 325                        }
 326                        currByte >>= 1;
 327                }
 328        }
 329
 330        crc = crc >> 26;
 331
 332        /* Set individual hash table register */
 333        if (crc >= 32) {
 334                fecp->ialr = (1 << (crc - 32));
 335                fecp->iaur = 0;
 336        } else {
 337                fecp->ialr = 0;
 338                fecp->iaur = (1 << crc);
 339        }
 340
 341        /* Set physical address */
 342        fecp->palr = (mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3];
 343        fecp->paur = (mac[4] << 24) + (mac[5] << 16) + 0x8808;
 344
 345        /* Clear multicast address hash table */
 346        fecp->gaur = 0;
 347        fecp->galr = 0;
 348}
 349
 350static int fec_init(struct eth_device *dev, bd_t * bd)
 351{
 352        struct fec_info_dma *info = dev->priv;
 353        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 354        int i;
 355        uchar enetaddr[6];
 356
 357#ifdef ET_DEBUG
 358        printf("fec_init: iobase 0x%08x ...\n", info->iobase);
 359#endif
 360
 361        fecpin_setclear(dev, 1);
 362
 363        fec_halt(dev);
 364
 365#if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \
 366        defined (CONFIG_SYS_DISCOVER_PHY)
 367
 368        mii_init();
 369
 370        set_fec_duplex_speed(fecp, bd, info->dup_spd);
 371#else
 372#ifndef CONFIG_SYS_DISCOVER_PHY
 373        set_fec_duplex_speed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
 374#endif                          /* ifndef CONFIG_SYS_DISCOVER_PHY */
 375#endif                          /* CONFIG_CMD_MII || CONFIG_MII */
 376
 377        /* We use strictly polling mode only */
 378        fecp->eimr = 0;
 379
 380        /* Clear any pending interrupt */
 381        fecp->eir = 0xffffffff;
 382
 383        /* Set station address   */
 384        if ((u32) fecp == CONFIG_SYS_FEC0_IOBASE)
 385                eth_env_get_enetaddr("ethaddr", enetaddr);
 386        else
 387                eth_env_get_enetaddr("eth1addr", enetaddr);
 388        fec_set_hwaddr(fecp, enetaddr);
 389
 390        /* Set Opcode/Pause Duration Register */
 391        fecp->opd = 0x00010020;
 392
 393        /* Setup Buffers and Buffer Descriptors */
 394        info->rxIdx = 0;
 395        info->txIdx = 0;
 396
 397        /* Setup Receiver Buffer Descriptors (13.14.24.18)
 398         * Settings:     Empty, Wrap */
 399        for (i = 0; i < PKTBUFSRX; i++) {
 400                info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
 401                info->rxbd[i].cbd_datlen = PKTSIZE_ALIGN;
 402                info->rxbd[i].cbd_bufaddr = (uint) net_rx_packets[i];
 403        }
 404        info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
 405
 406        /* Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
 407         * Settings:    Last, Tx CRC */
 408        for (i = 0; i < CONFIG_SYS_TX_ETH_BUFFER; i++) {
 409                info->txbd[i].cbd_sc = 0;
 410                info->txbd[i].cbd_datlen = 0;
 411                info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
 412        }
 413        info->txbd[CONFIG_SYS_TX_ETH_BUFFER - 1].cbd_sc |= BD_ENET_TX_WRAP;
 414
 415        info->usedTbdIdx = 0;
 416        info->cleanTbdNum = CONFIG_SYS_TX_ETH_BUFFER;
 417
 418        /* Set Rx FIFO alarm and granularity value */
 419        fecp->rfcr = 0x0c000000;
 420        fecp->rfar = 0x0000030c;
 421
 422        /* Set Tx FIFO granularity value */
 423        fecp->tfcr = FIFO_CTRL_FRAME | FIFO_CTRL_GR(6) | 0x00040000;
 424        fecp->tfar = 0x00000080;
 425
 426        fecp->tfwr = 0x2;
 427        fecp->ctcwr = 0x03000000;
 428
 429        /* Enable DMA receive task */
 430        MCD_startDma(info->rxTask,      /* Dma channel */
 431                     (s8 *) info->rxbd, /*Source Address */
 432                     0,         /* Source increment */
 433                     (s8 *) (&fecp->rfdr),      /* dest */
 434                     4,         /* dest increment */
 435                     0,         /* DMA size */
 436                     4,         /* xfer size */
 437                     info->rxInit,      /* initiator */
 438                     info->rxPri,       /* priority */
 439                     (MCD_FECRX_DMA | MCD_TT_FLAGS_DEF),        /* Flags */
 440                     (MCD_NO_CSUM | MCD_NO_BYTE_SWAP)   /* Function description */
 441            );
 442
 443        /* Enable DMA tx task with no ready buffer descriptors */
 444        MCD_startDma(info->txTask,      /* Dma channel */
 445                     (s8 *) info->txbd, /*Source Address */
 446                     0,         /* Source increment */
 447                     (s8 *) (&fecp->tfdr),      /* dest */
 448                     4,         /* dest incr */
 449                     0,         /* DMA size */
 450                     4,         /* xfer size */
 451                     info->txInit,      /* initiator */
 452                     info->txPri,       /* priority */
 453                     (MCD_FECTX_DMA | MCD_TT_FLAGS_DEF),        /* Flags */
 454                     (MCD_NO_CSUM | MCD_NO_BYTE_SWAP)   /* Function description */
 455            );
 456
 457        /* Now enable the transmit and receive processing */
 458        fecp->ecr |= FEC_ECR_ETHER_EN;
 459
 460        return 1;
 461}
 462
 463static void fec_halt(struct eth_device *dev)
 464{
 465        struct fec_info_dma *info = dev->priv;
 466        volatile fecdma_t *fecp = (fecdma_t *) (info->iobase);
 467        int counter = 0xffff;
 468
 469        /* issue graceful stop command to the FEC transmitter if necessary */
 470        fecp->tcr |= FEC_TCR_GTS;
 471
 472        /* wait for graceful stop to register */
 473        while ((counter--) && (!(fecp->eir & FEC_EIR_GRA))) ;
 474
 475        /* Disable DMA tasks */
 476        MCD_killDma(info->txTask);
 477        MCD_killDma(info->rxTask);
 478
 479        /* Disable the Ethernet Controller */
 480        fecp->ecr &= ~FEC_ECR_ETHER_EN;
 481
 482        /* Clear FIFO status registers */
 483        fecp->rfsr &= FIFO_ERRSTAT;
 484        fecp->tfsr &= FIFO_ERRSTAT;
 485
 486        fecp->frst = 0x01000000;
 487
 488        /* Issue a reset command to the FEC chip */
 489        fecp->ecr |= FEC_ECR_RESET;
 490
 491        /* wait at least 20 clock cycles */
 492        udelay(10000);
 493
 494#ifdef ET_DEBUG
 495        printf("Ethernet task stopped\n");
 496#endif
 497}
 498
 499int mcdmafec_initialize(bd_t * bis)
 500{
 501        struct eth_device *dev;
 502        int i;
 503#ifdef CONFIG_SYS_DMA_USE_INTSRAM
 504        u32 tmp = CONFIG_SYS_INTSRAM + 0x2000;
 505#endif
 506
 507        for (i = 0; i < ARRAY_SIZE(fec_info); i++) {
 508
 509                dev =
 510                    (struct eth_device *)memalign(CONFIG_SYS_CACHELINE_SIZE,
 511                                                  sizeof *dev);
 512                if (dev == NULL)
 513                        hang();
 514
 515                memset(dev, 0, sizeof(*dev));
 516
 517                sprintf(dev->name, "FEC%d", fec_info[i].index);
 518
 519                dev->priv = &fec_info[i];
 520                dev->init = fec_init;
 521                dev->halt = fec_halt;
 522                dev->send = fec_send;
 523                dev->recv = fec_recv;
 524
 525                /* setup Receive and Transmit buffer descriptor */
 526#ifdef CONFIG_SYS_DMA_USE_INTSRAM
 527                fec_info[i].rxbd = (cbd_t *)((u32)fec_info[i].rxbd + tmp);
 528                tmp = (u32)fec_info[i].rxbd;
 529                fec_info[i].txbd =
 530                    (cbd_t *)((u32)fec_info[i].txbd + tmp +
 531                    (PKTBUFSRX * sizeof(cbd_t)));
 532                tmp = (u32)fec_info[i].txbd;
 533                fec_info[i].txbuf =
 534                    (char *)((u32)fec_info[i].txbuf + tmp +
 535                    (CONFIG_SYS_TX_ETH_BUFFER * sizeof(cbd_t)));
 536                tmp = (u32)fec_info[i].txbuf;
 537#else
 538                fec_info[i].rxbd =
 539                    (cbd_t *) memalign(CONFIG_SYS_CACHELINE_SIZE,
 540                                       (PKTBUFSRX * sizeof(cbd_t)));
 541                fec_info[i].txbd =
 542                    (cbd_t *) memalign(CONFIG_SYS_CACHELINE_SIZE,
 543                                       (CONFIG_SYS_TX_ETH_BUFFER * sizeof(cbd_t)));
 544                fec_info[i].txbuf =
 545                    (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, DBUF_LENGTH);
 546#endif
 547
 548#ifdef ET_DEBUG
 549                printf("rxbd %x txbd %x\n",
 550                       (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
 551#endif
 552
 553                fec_info[i].phy_name = (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, 32);
 554
 555                eth_register(dev);
 556
 557#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 558                int retval;
 559                struct mii_dev *mdiodev = mdio_alloc();
 560                if (!mdiodev)
 561                        return -ENOMEM;
 562                strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
 563                mdiodev->read = mcffec_miiphy_read;
 564                mdiodev->write = mcffec_miiphy_write;
 565
 566                retval = mdio_register(mdiodev);
 567                if (retval < 0)
 568                        return retval;
 569#endif
 570
 571                if (i > 0)
 572                        fec_info[i - 1].next = &fec_info[i];
 573        }
 574        fec_info[i - 1].next = &fec_info[0];
 575
 576        /* default speed */
 577        bis->bi_ethspeed = 10;
 578
 579        return 0;
 580}
 581