uboot/drivers/qe/uec.c
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   1/*
   2 * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
   3 *
   4 * Dave Liu <daveliu@freescale.com>
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License as
   8 * published by the Free Software Foundation; either version 2 of
   9 * the License, or (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19 * MA 02111-1307 USA
  20 */
  21
  22#include "common.h"
  23#include "net.h"
  24#include "malloc.h"
  25#include "asm/errno.h"
  26#include "asm/io.h"
  27#include "asm/immap_qe.h"
  28#include "qe.h"
  29#include "uccf.h"
  30#include "uec.h"
  31#include "uec_phy.h"
  32#include "miiphy.h"
  33
  34/* Default UTBIPAR SMI address */
  35#ifndef CONFIG_UTBIPAR_INIT_TBIPA
  36#define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
  37#endif
  38
  39static uec_info_t uec_info[] = {
  40#ifdef CONFIG_UEC_ETH1
  41        STD_UEC_INFO(1),        /* UEC1 */
  42#endif
  43#ifdef CONFIG_UEC_ETH2
  44        STD_UEC_INFO(2),        /* UEC2 */
  45#endif
  46#ifdef CONFIG_UEC_ETH3
  47        STD_UEC_INFO(3),        /* UEC3 */
  48#endif
  49#ifdef CONFIG_UEC_ETH4
  50        STD_UEC_INFO(4),        /* UEC4 */
  51#endif
  52#ifdef CONFIG_UEC_ETH5
  53        STD_UEC_INFO(5),        /* UEC5 */
  54#endif
  55#ifdef CONFIG_UEC_ETH6
  56        STD_UEC_INFO(6),        /* UEC6 */
  57#endif
  58#ifdef CONFIG_UEC_ETH7
  59        STD_UEC_INFO(7),        /* UEC7 */
  60#endif
  61#ifdef CONFIG_UEC_ETH8
  62        STD_UEC_INFO(8),        /* UEC8 */
  63#endif
  64};
  65
  66#define MAXCONTROLLERS  (8)
  67
  68static struct eth_device *devlist[MAXCONTROLLERS];
  69
  70u16 phy_read (struct uec_mii_info *mii_info, u16 regnum);
  71void phy_write (struct uec_mii_info *mii_info, u16 regnum, u16 val);
  72
  73static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  74{
  75        uec_t           *uec_regs;
  76        u32             maccfg1;
  77
  78        if (!uec) {
  79                printf("%s: uec not initial\n", __FUNCTION__);
  80                return -EINVAL;
  81        }
  82        uec_regs = uec->uec_regs;
  83
  84        maccfg1 = in_be32(&uec_regs->maccfg1);
  85
  86        if (mode & COMM_DIR_TX) {
  87                maccfg1 |= MACCFG1_ENABLE_TX;
  88                out_be32(&uec_regs->maccfg1, maccfg1);
  89                uec->mac_tx_enabled = 1;
  90        }
  91
  92        if (mode & COMM_DIR_RX) {
  93                maccfg1 |= MACCFG1_ENABLE_RX;
  94                out_be32(&uec_regs->maccfg1, maccfg1);
  95                uec->mac_rx_enabled = 1;
  96        }
  97
  98        return 0;
  99}
 100
 101static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
 102{
 103        uec_t           *uec_regs;
 104        u32             maccfg1;
 105
 106        if (!uec) {
 107                printf("%s: uec not initial\n", __FUNCTION__);
 108                return -EINVAL;
 109        }
 110        uec_regs = uec->uec_regs;
 111
 112        maccfg1 = in_be32(&uec_regs->maccfg1);
 113
 114        if (mode & COMM_DIR_TX) {
 115                maccfg1 &= ~MACCFG1_ENABLE_TX;
 116                out_be32(&uec_regs->maccfg1, maccfg1);
 117                uec->mac_tx_enabled = 0;
 118        }
 119
 120        if (mode & COMM_DIR_RX) {
 121                maccfg1 &= ~MACCFG1_ENABLE_RX;
 122                out_be32(&uec_regs->maccfg1, maccfg1);
 123                uec->mac_rx_enabled = 0;
 124        }
 125
 126        return 0;
 127}
 128
 129static int uec_graceful_stop_tx(uec_private_t *uec)
 130{
 131        ucc_fast_t              *uf_regs;
 132        u32                     cecr_subblock;
 133        u32                     ucce;
 134
 135        if (!uec || !uec->uccf) {
 136                printf("%s: No handle passed.\n", __FUNCTION__);
 137                return -EINVAL;
 138        }
 139
 140        uf_regs = uec->uccf->uf_regs;
 141
 142        /* Clear the grace stop event */
 143        out_be32(&uf_regs->ucce, UCCE_GRA);
 144
 145        /* Issue host command */
 146        cecr_subblock =
 147                 ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 148        qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
 149                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 150
 151        /* Wait for command to complete */
 152        do {
 153                ucce = in_be32(&uf_regs->ucce);
 154        } while (! (ucce & UCCE_GRA));
 155
 156        uec->grace_stopped_tx = 1;
 157
 158        return 0;
 159}
 160
 161static int uec_graceful_stop_rx(uec_private_t *uec)
 162{
 163        u32             cecr_subblock;
 164        u8              ack;
 165
 166        if (!uec) {
 167                printf("%s: No handle passed.\n", __FUNCTION__);
 168                return -EINVAL;
 169        }
 170
 171        if (!uec->p_rx_glbl_pram) {
 172                printf("%s: No init rx global parameter\n", __FUNCTION__);
 173                return -EINVAL;
 174        }
 175
 176        /* Clear acknowledge bit */
 177        ack = uec->p_rx_glbl_pram->rxgstpack;
 178        ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
 179        uec->p_rx_glbl_pram->rxgstpack = ack;
 180
 181        /* Keep issuing cmd and checking ack bit until it is asserted */
 182        do {
 183                /* Issue host command */
 184                cecr_subblock =
 185                 ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 186                qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
 187                                 (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 188                ack = uec->p_rx_glbl_pram->rxgstpack;
 189        } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
 190
 191        uec->grace_stopped_rx = 1;
 192
 193        return 0;
 194}
 195
 196static int uec_restart_tx(uec_private_t *uec)
 197{
 198        u32             cecr_subblock;
 199
 200        if (!uec || !uec->uec_info) {
 201                printf("%s: No handle passed.\n", __FUNCTION__);
 202                return -EINVAL;
 203        }
 204
 205        cecr_subblock =
 206         ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 207        qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
 208                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 209
 210        uec->grace_stopped_tx = 0;
 211
 212        return 0;
 213}
 214
 215static int uec_restart_rx(uec_private_t *uec)
 216{
 217        u32             cecr_subblock;
 218
 219        if (!uec || !uec->uec_info) {
 220                printf("%s: No handle passed.\n", __FUNCTION__);
 221                return -EINVAL;
 222        }
 223
 224        cecr_subblock =
 225         ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 226        qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
 227                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 228
 229        uec->grace_stopped_rx = 0;
 230
 231        return 0;
 232}
 233
 234static int uec_open(uec_private_t *uec, comm_dir_e mode)
 235{
 236        ucc_fast_private_t      *uccf;
 237
 238        if (!uec || !uec->uccf) {
 239                printf("%s: No handle passed.\n", __FUNCTION__);
 240                return -EINVAL;
 241        }
 242        uccf = uec->uccf;
 243
 244        /* check if the UCC number is in range. */
 245        if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 246                printf("%s: ucc_num out of range.\n", __FUNCTION__);
 247                return -EINVAL;
 248        }
 249
 250        /* Enable MAC */
 251        uec_mac_enable(uec, mode);
 252
 253        /* Enable UCC fast */
 254        ucc_fast_enable(uccf, mode);
 255
 256        /* RISC microcode start */
 257        if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
 258                uec_restart_tx(uec);
 259        }
 260        if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
 261                uec_restart_rx(uec);
 262        }
 263
 264        return 0;
 265}
 266
 267static int uec_stop(uec_private_t *uec, comm_dir_e mode)
 268{
 269        ucc_fast_private_t      *uccf;
 270
 271        if (!uec || !uec->uccf) {
 272                printf("%s: No handle passed.\n", __FUNCTION__);
 273                return -EINVAL;
 274        }
 275        uccf = uec->uccf;
 276
 277        /* check if the UCC number is in range. */
 278        if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 279                printf("%s: ucc_num out of range.\n", __FUNCTION__);
 280                return -EINVAL;
 281        }
 282        /* Stop any transmissions */
 283        if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
 284                uec_graceful_stop_tx(uec);
 285        }
 286        /* Stop any receptions */
 287        if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
 288                uec_graceful_stop_rx(uec);
 289        }
 290
 291        /* Disable the UCC fast */
 292        ucc_fast_disable(uec->uccf, mode);
 293
 294        /* Disable the MAC */
 295        uec_mac_disable(uec, mode);
 296
 297        return 0;
 298}
 299
 300static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
 301{
 302        uec_t           *uec_regs;
 303        u32             maccfg2;
 304
 305        if (!uec) {
 306                printf("%s: uec not initial\n", __FUNCTION__);
 307                return -EINVAL;
 308        }
 309        uec_regs = uec->uec_regs;
 310
 311        if (duplex == DUPLEX_HALF) {
 312                maccfg2 = in_be32(&uec_regs->maccfg2);
 313                maccfg2 &= ~MACCFG2_FDX;
 314                out_be32(&uec_regs->maccfg2, maccfg2);
 315        }
 316
 317        if (duplex == DUPLEX_FULL) {
 318                maccfg2 = in_be32(&uec_regs->maccfg2);
 319                maccfg2 |= MACCFG2_FDX;
 320                out_be32(&uec_regs->maccfg2, maccfg2);
 321        }
 322
 323        return 0;
 324}
 325
 326static int uec_set_mac_if_mode(uec_private_t *uec,
 327                enet_interface_type_e if_mode, int speed)
 328{
 329        enet_interface_type_e   enet_if_mode;
 330        uec_info_t              *uec_info;
 331        uec_t                   *uec_regs;
 332        u32                     upsmr;
 333        u32                     maccfg2;
 334
 335        if (!uec) {
 336                printf("%s: uec not initial\n", __FUNCTION__);
 337                return -EINVAL;
 338        }
 339
 340        uec_info = uec->uec_info;
 341        uec_regs = uec->uec_regs;
 342        enet_if_mode = if_mode;
 343
 344        maccfg2 = in_be32(&uec_regs->maccfg2);
 345        maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
 346
 347        upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
 348        upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
 349
 350        switch (speed) {
 351                case 10:
 352                        maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 353                        switch (enet_if_mode) {
 354                                case MII:
 355                                        break;
 356                                case RGMII:
 357                                        upsmr |= (UPSMR_RPM | UPSMR_R10M);
 358                                        break;
 359                                case RMII:
 360                                        upsmr |= (UPSMR_R10M | UPSMR_RMM);
 361                                        break;
 362                                default:
 363                                        return -EINVAL;
 364                                        break;
 365                        }
 366                        break;
 367                case 100:
 368                        maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 369                        switch (enet_if_mode) {
 370                                case MII:
 371                                        break;
 372                                case RGMII:
 373                                        upsmr |= UPSMR_RPM;
 374                                        break;
 375                                case RMII:
 376                                        upsmr |= UPSMR_RMM;
 377                                        break;
 378                                default:
 379                                        return -EINVAL;
 380                                        break;
 381                        }
 382                        break;
 383                case 1000:
 384                        maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 385                        switch (enet_if_mode) {
 386                                case GMII:
 387                                        break;
 388                                case TBI:
 389                                        upsmr |= UPSMR_TBIM;
 390                                        break;
 391                                case RTBI:
 392                                        upsmr |= (UPSMR_RPM | UPSMR_TBIM);
 393                                        break;
 394                                case RGMII_RXID:
 395                                case RGMII_ID:
 396                                case RGMII:
 397                                        upsmr |= UPSMR_RPM;
 398                                        break;
 399                                case SGMII:
 400                                        upsmr |= UPSMR_SGMM;
 401                                        break;
 402                                default:
 403                                        return -EINVAL;
 404                                        break;
 405                        }
 406                        break;
 407                default:
 408                        return -EINVAL;
 409                        break;
 410        }
 411
 412        out_be32(&uec_regs->maccfg2, maccfg2);
 413        out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
 414
 415        return 0;
 416}
 417
 418static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
 419{
 420        uint            timeout = 0x1000;
 421        u32             miimcfg = 0;
 422
 423        miimcfg = in_be32(&uec_mii_regs->miimcfg);
 424        miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
 425        out_be32(&uec_mii_regs->miimcfg, miimcfg);
 426
 427        /* Wait until the bus is free */
 428        while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
 429        if (timeout <= 0) {
 430                printf("%s: The MII Bus is stuck!", __FUNCTION__);
 431                return -ETIMEDOUT;
 432        }
 433
 434        return 0;
 435}
 436
 437static int init_phy(struct eth_device *dev)
 438{
 439        uec_private_t           *uec;
 440        uec_mii_t               *umii_regs;
 441        struct uec_mii_info     *mii_info;
 442        struct phy_info         *curphy;
 443        int                     err;
 444
 445        uec = (uec_private_t *)dev->priv;
 446        umii_regs = uec->uec_mii_regs;
 447
 448        uec->oldlink = 0;
 449        uec->oldspeed = 0;
 450        uec->oldduplex = -1;
 451
 452        mii_info = malloc(sizeof(*mii_info));
 453        if (!mii_info) {
 454                printf("%s: Could not allocate mii_info", dev->name);
 455                return -ENOMEM;
 456        }
 457        memset(mii_info, 0, sizeof(*mii_info));
 458
 459        if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 460                mii_info->speed = SPEED_1000;
 461        } else {
 462                mii_info->speed = SPEED_100;
 463        }
 464
 465        mii_info->duplex = DUPLEX_FULL;
 466        mii_info->pause = 0;
 467        mii_info->link = 1;
 468
 469        mii_info->advertising = (ADVERTISED_10baseT_Half |
 470                                ADVERTISED_10baseT_Full |
 471                                ADVERTISED_100baseT_Half |
 472                                ADVERTISED_100baseT_Full |
 473                                ADVERTISED_1000baseT_Full);
 474        mii_info->autoneg = 1;
 475        mii_info->mii_id = uec->uec_info->phy_address;
 476        mii_info->dev = dev;
 477
 478        mii_info->mdio_read = &uec_read_phy_reg;
 479        mii_info->mdio_write = &uec_write_phy_reg;
 480
 481        uec->mii_info = mii_info;
 482
 483        qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
 484
 485        if (init_mii_management_configuration(umii_regs)) {
 486                printf("%s: The MII Bus is stuck!", dev->name);
 487                err = -1;
 488                goto bus_fail;
 489        }
 490
 491        /* get info for this PHY */
 492        curphy = uec_get_phy_info(uec->mii_info);
 493        if (!curphy) {
 494                printf("%s: No PHY found", dev->name);
 495                err = -1;
 496                goto no_phy;
 497        }
 498
 499        mii_info->phyinfo = curphy;
 500
 501        /* Run the commands which initialize the PHY */
 502        if (curphy->init) {
 503                err = curphy->init(uec->mii_info);
 504                if (err)
 505                        goto phy_init_fail;
 506        }
 507
 508        return 0;
 509
 510phy_init_fail:
 511no_phy:
 512bus_fail:
 513        free(mii_info);
 514        return err;
 515}
 516
 517static void adjust_link(struct eth_device *dev)
 518{
 519        uec_private_t           *uec = (uec_private_t *)dev->priv;
 520        uec_t                   *uec_regs;
 521        struct uec_mii_info     *mii_info = uec->mii_info;
 522
 523        extern void change_phy_interface_mode(struct eth_device *dev,
 524                                 enet_interface_type_e mode, int speed);
 525        uec_regs = uec->uec_regs;
 526
 527        if (mii_info->link) {
 528                /* Now we make sure that we can be in full duplex mode.
 529                * If not, we operate in half-duplex mode. */
 530                if (mii_info->duplex != uec->oldduplex) {
 531                        if (!(mii_info->duplex)) {
 532                                uec_set_mac_duplex(uec, DUPLEX_HALF);
 533                                printf("%s: Half Duplex\n", dev->name);
 534                        } else {
 535                                uec_set_mac_duplex(uec, DUPLEX_FULL);
 536                                printf("%s: Full Duplex\n", dev->name);
 537                        }
 538                        uec->oldduplex = mii_info->duplex;
 539                }
 540
 541                if (mii_info->speed != uec->oldspeed) {
 542                        enet_interface_type_e   mode = \
 543                                uec->uec_info->enet_interface_type;
 544                        if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 545                                switch (mii_info->speed) {
 546                                case 1000:
 547                                        break;
 548                                case 100:
 549                                        printf ("switching to rgmii 100\n");
 550                                        mode = RGMII;
 551                                        break;
 552                                case 10:
 553                                        printf ("switching to rgmii 10\n");
 554                                        mode = RGMII;
 555                                        break;
 556                                default:
 557                                        printf("%s: Ack,Speed(%d)is illegal\n",
 558                                                dev->name, mii_info->speed);
 559                                        break;
 560                                }
 561                        }
 562
 563                        /* change phy */
 564                        change_phy_interface_mode(dev, mode, mii_info->speed);
 565                        /* change the MAC interface mode */
 566                        uec_set_mac_if_mode(uec, mode, mii_info->speed);
 567
 568                        printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
 569                        uec->oldspeed = mii_info->speed;
 570                }
 571
 572                if (!uec->oldlink) {
 573                        printf("%s: Link is up\n", dev->name);
 574                        uec->oldlink = 1;
 575                }
 576
 577        } else { /* if (mii_info->link) */
 578                if (uec->oldlink) {
 579                        printf("%s: Link is down\n", dev->name);
 580                        uec->oldlink = 0;
 581                        uec->oldspeed = 0;
 582                        uec->oldduplex = -1;
 583                }
 584        }
 585}
 586
 587static void phy_change(struct eth_device *dev)
 588{
 589        uec_private_t   *uec = (uec_private_t *)dev->priv;
 590
 591        /* Update the link, speed, duplex */
 592        uec->mii_info->phyinfo->read_status(uec->mii_info);
 593
 594        /* Adjust the interface according to speed */
 595        adjust_link(dev);
 596}
 597
 598#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
 599        && !defined(BITBANGMII)
 600
 601/*
 602 * Find a device index from the devlist by name
 603 *
 604 * Returns:
 605 *  The index where the device is located, -1 on error
 606 */
 607static int uec_miiphy_find_dev_by_name(char *devname)
 608{
 609        int i;
 610
 611        for (i = 0; i < MAXCONTROLLERS; i++) {
 612                if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
 613                        break;
 614                }
 615        }
 616
 617        /* If device cannot be found, returns -1 */
 618        if (i == MAXCONTROLLERS) {
 619                debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
 620                i = -1;
 621        }
 622
 623        return i;
 624}
 625
 626/*
 627 * Read a MII PHY register.
 628 *
 629 * Returns:
 630 *  0 on success
 631 */
 632static int uec_miiphy_read(char *devname, unsigned char addr,
 633                            unsigned char reg, unsigned short *value)
 634{
 635        int devindex = 0;
 636
 637        if (devname == NULL || value == NULL) {
 638                debug("%s: NULL pointer given\n", __FUNCTION__);
 639        } else {
 640                devindex = uec_miiphy_find_dev_by_name(devname);
 641                if (devindex >= 0) {
 642                        *value = uec_read_phy_reg(devlist[devindex], addr, reg);
 643                }
 644        }
 645        return 0;
 646}
 647
 648/*
 649 * Write a MII PHY register.
 650 *
 651 * Returns:
 652 *  0 on success
 653 */
 654static int uec_miiphy_write(char *devname, unsigned char addr,
 655                             unsigned char reg, unsigned short value)
 656{
 657        int devindex = 0;
 658
 659        if (devname == NULL) {
 660                debug("%s: NULL pointer given\n", __FUNCTION__);
 661        } else {
 662                devindex = uec_miiphy_find_dev_by_name(devname);
 663                if (devindex >= 0) {
 664                        uec_write_phy_reg(devlist[devindex], addr, reg, value);
 665                }
 666        }
 667        return 0;
 668}
 669#endif
 670
 671static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
 672{
 673        uec_t           *uec_regs;
 674        u32             mac_addr1;
 675        u32             mac_addr2;
 676
 677        if (!uec) {
 678                printf("%s: uec not initial\n", __FUNCTION__);
 679                return -EINVAL;
 680        }
 681
 682        uec_regs = uec->uec_regs;
 683
 684        /* if a station address of 0x12345678ABCD, perform a write to
 685        MACSTNADDR1 of 0xCDAB7856,
 686        MACSTNADDR2 of 0x34120000 */
 687
 688        mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
 689                        (mac_addr[3] << 8)  | (mac_addr[2]);
 690        out_be32(&uec_regs->macstnaddr1, mac_addr1);
 691
 692        mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
 693        out_be32(&uec_regs->macstnaddr2, mac_addr2);
 694
 695        return 0;
 696}
 697
 698static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
 699                                         int *threads_num_ret)
 700{
 701        int     num_threads_numerica;
 702
 703        switch (threads_num) {
 704                case UEC_NUM_OF_THREADS_1:
 705                        num_threads_numerica = 1;
 706                        break;
 707                case UEC_NUM_OF_THREADS_2:
 708                        num_threads_numerica = 2;
 709                        break;
 710                case UEC_NUM_OF_THREADS_4:
 711                        num_threads_numerica = 4;
 712                        break;
 713                case UEC_NUM_OF_THREADS_6:
 714                        num_threads_numerica = 6;
 715                        break;
 716                case UEC_NUM_OF_THREADS_8:
 717                        num_threads_numerica = 8;
 718                        break;
 719                default:
 720                        printf("%s: Bad number of threads value.",
 721                                 __FUNCTION__);
 722                        return -EINVAL;
 723        }
 724
 725        *threads_num_ret = num_threads_numerica;
 726
 727        return 0;
 728}
 729
 730static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
 731{
 732        uec_info_t      *uec_info;
 733        u32             end_bd;
 734        u8              bmrx = 0;
 735        int             i;
 736
 737        uec_info = uec->uec_info;
 738
 739        /* Alloc global Tx parameter RAM page */
 740        uec->tx_glbl_pram_offset = qe_muram_alloc(
 741                                sizeof(uec_tx_global_pram_t),
 742                                 UEC_TX_GLOBAL_PRAM_ALIGNMENT);
 743        uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
 744                                qe_muram_addr(uec->tx_glbl_pram_offset);
 745
 746        /* Zero the global Tx prameter RAM */
 747        memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
 748
 749        /* Init global Tx parameter RAM */
 750
 751        /* TEMODER, RMON statistics disable, one Tx queue */
 752        out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
 753
 754        /* SQPTR */
 755        uec->send_q_mem_reg_offset = qe_muram_alloc(
 756                                sizeof(uec_send_queue_qd_t),
 757                                 UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
 758        uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
 759                                qe_muram_addr(uec->send_q_mem_reg_offset);
 760        out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
 761
 762        /* Setup the table with TxBDs ring */
 763        end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
 764                                         * SIZEOFBD;
 765        out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
 766                                 (u32)(uec->p_tx_bd_ring));
 767        out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
 768                                                 end_bd);
 769
 770        /* Scheduler Base Pointer, we have only one Tx queue, no need it */
 771        out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
 772
 773        /* TxRMON Base Pointer, TxRMON disable, we don't need it */
 774        out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
 775
 776        /* TSTATE, global snooping, big endian, the CSB bus selected */
 777        bmrx = BMR_INIT_VALUE;
 778        out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
 779
 780        /* IPH_Offset */
 781        for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
 782                out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
 783        }
 784
 785        /* VTAG table */
 786        for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
 787                out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
 788        }
 789
 790        /* TQPTR */
 791        uec->thread_dat_tx_offset = qe_muram_alloc(
 792                num_threads_tx * sizeof(uec_thread_data_tx_t) +
 793                 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
 794
 795        uec->p_thread_data_tx = (uec_thread_data_tx_t *)
 796                                qe_muram_addr(uec->thread_dat_tx_offset);
 797        out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
 798}
 799
 800static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
 801{
 802        u8      bmrx = 0;
 803        int     i;
 804        uec_82xx_address_filtering_pram_t       *p_af_pram;
 805
 806        /* Allocate global Rx parameter RAM page */
 807        uec->rx_glbl_pram_offset = qe_muram_alloc(
 808                sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
 809        uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
 810                                qe_muram_addr(uec->rx_glbl_pram_offset);
 811
 812        /* Zero Global Rx parameter RAM */
 813        memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
 814
 815        /* Init global Rx parameter RAM */
 816        /* REMODER, Extended feature mode disable, VLAN disable,
 817         LossLess flow control disable, Receive firmware statisic disable,
 818         Extended address parsing mode disable, One Rx queues,
 819         Dynamic maximum/minimum frame length disable, IP checksum check
 820         disable, IP address alignment disable
 821        */
 822        out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
 823
 824        /* RQPTR */
 825        uec->thread_dat_rx_offset = qe_muram_alloc(
 826                        num_threads_rx * sizeof(uec_thread_data_rx_t),
 827                         UEC_THREAD_DATA_ALIGNMENT);
 828        uec->p_thread_data_rx = (uec_thread_data_rx_t *)
 829                                qe_muram_addr(uec->thread_dat_rx_offset);
 830        out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
 831
 832        /* Type_or_Len */
 833        out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
 834
 835        /* RxRMON base pointer, we don't need it */
 836        out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
 837
 838        /* IntCoalescingPTR, we don't need it, no interrupt */
 839        out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
 840
 841        /* RSTATE, global snooping, big endian, the CSB bus selected */
 842        bmrx = BMR_INIT_VALUE;
 843        out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
 844
 845        /* MRBLR */
 846        out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
 847
 848        /* RBDQPTR */
 849        uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
 850                                sizeof(uec_rx_bd_queues_entry_t) + \
 851                                sizeof(uec_rx_prefetched_bds_t),
 852                                 UEC_RX_BD_QUEUES_ALIGNMENT);
 853        uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
 854                                qe_muram_addr(uec->rx_bd_qs_tbl_offset);
 855
 856        /* Zero it */
 857        memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
 858                                        sizeof(uec_rx_prefetched_bds_t));
 859        out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
 860        out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
 861                 (u32)uec->p_rx_bd_ring);
 862
 863        /* MFLR */
 864        out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
 865        /* MINFLR */
 866        out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
 867        /* MAXD1 */
 868        out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
 869        /* MAXD2 */
 870        out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
 871        /* ECAM_PTR */
 872        out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
 873        /* L2QT */
 874        out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
 875        /* L3QT */
 876        for (i = 0; i < 8; i++) {
 877                out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
 878        }
 879
 880        /* VLAN_TYPE */
 881        out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
 882        /* TCI */
 883        out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
 884
 885        /* Clear PQ2 style address filtering hash table */
 886        p_af_pram = (uec_82xx_address_filtering_pram_t *) \
 887                        uec->p_rx_glbl_pram->addressfiltering;
 888
 889        p_af_pram->iaddr_h = 0;
 890        p_af_pram->iaddr_l = 0;
 891        p_af_pram->gaddr_h = 0;
 892        p_af_pram->gaddr_l = 0;
 893}
 894
 895static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
 896                                         int thread_tx, int thread_rx)
 897{
 898        uec_init_cmd_pram_t             *p_init_enet_param;
 899        u32                             init_enet_param_offset;
 900        uec_info_t                      *uec_info;
 901        int                             i;
 902        int                             snum;
 903        u32                             init_enet_offset;
 904        u32                             entry_val;
 905        u32                             command;
 906        u32                             cecr_subblock;
 907
 908        uec_info = uec->uec_info;
 909
 910        /* Allocate init enet command parameter */
 911        uec->init_enet_param_offset = qe_muram_alloc(
 912                                        sizeof(uec_init_cmd_pram_t), 4);
 913        init_enet_param_offset = uec->init_enet_param_offset;
 914        uec->p_init_enet_param = (uec_init_cmd_pram_t *)
 915                                qe_muram_addr(uec->init_enet_param_offset);
 916
 917        /* Zero init enet command struct */
 918        memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
 919
 920        /* Init the command struct */
 921        p_init_enet_param = uec->p_init_enet_param;
 922        p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
 923        p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
 924        p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
 925        p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
 926        p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
 927        p_init_enet_param->largestexternallookupkeysize = 0;
 928
 929        p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
 930                                         << ENET_INIT_PARAM_RGF_SHIFT;
 931        p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
 932                                         << ENET_INIT_PARAM_TGF_SHIFT;
 933
 934        /* Init Rx global parameter pointer */
 935        p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
 936                                                 (u32)uec_info->risc_rx;
 937
 938        /* Init Rx threads */
 939        for (i = 0; i < (thread_rx + 1); i++) {
 940                if ((snum = qe_get_snum()) < 0) {
 941                        printf("%s can not get snum\n", __FUNCTION__);
 942                        return -ENOMEM;
 943                }
 944
 945                if (i==0) {
 946                        init_enet_offset = 0;
 947                } else {
 948                        init_enet_offset = qe_muram_alloc(
 949                                        sizeof(uec_thread_rx_pram_t),
 950                                         UEC_THREAD_RX_PRAM_ALIGNMENT);
 951                }
 952
 953                entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 954                                 init_enet_offset | (u32)uec_info->risc_rx;
 955                p_init_enet_param->rxthread[i] = entry_val;
 956        }
 957
 958        /* Init Tx global parameter pointer */
 959        p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
 960                                         (u32)uec_info->risc_tx;
 961
 962        /* Init Tx threads */
 963        for (i = 0; i < thread_tx; i++) {
 964                if ((snum = qe_get_snum()) < 0) {
 965                        printf("%s can not get snum\n", __FUNCTION__);
 966                        return -ENOMEM;
 967                }
 968
 969                init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
 970                                                 UEC_THREAD_TX_PRAM_ALIGNMENT);
 971
 972                entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 973                                 init_enet_offset | (u32)uec_info->risc_tx;
 974                p_init_enet_param->txthread[i] = entry_val;
 975        }
 976
 977        __asm__ __volatile__("sync");
 978
 979        /* Issue QE command */
 980        command = QE_INIT_TX_RX;
 981        cecr_subblock = ucc_fast_get_qe_cr_subblock(
 982                                uec->uec_info->uf_info.ucc_num);
 983        qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
 984                                                 init_enet_param_offset);
 985
 986        return 0;
 987}
 988
 989static int uec_startup(uec_private_t *uec)
 990{
 991        uec_info_t                      *uec_info;
 992        ucc_fast_info_t                 *uf_info;
 993        ucc_fast_private_t              *uccf;
 994        ucc_fast_t                      *uf_regs;
 995        uec_t                           *uec_regs;
 996        int                             num_threads_tx;
 997        int                             num_threads_rx;
 998        u32                             utbipar;
 999        u32                             length;
1000        u32                             align;
1001        qe_bd_t                         *bd;
1002        u8                              *buf;
1003        int                             i;
1004
1005        if (!uec || !uec->uec_info) {
1006                printf("%s: uec or uec_info not initial\n", __FUNCTION__);
1007                return -EINVAL;
1008        }
1009
1010        uec_info = uec->uec_info;
1011        uf_info = &(uec_info->uf_info);
1012
1013        /* Check if Rx BD ring len is illegal */
1014        if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
1015                (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
1016                printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
1017                         __FUNCTION__);
1018                return -EINVAL;
1019        }
1020
1021        /* Check if Tx BD ring len is illegal */
1022        if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
1023                printf("%s: Tx BD ring length must not be smaller than 2.\n",
1024                         __FUNCTION__);
1025                return -EINVAL;
1026        }
1027
1028        /* Check if MRBLR is illegal */
1029        if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN  % UEC_MRBLR_ALIGNMENT)) {
1030                printf("%s: max rx buffer length must be mutliple of 128.\n",
1031                         __FUNCTION__);
1032                return -EINVAL;
1033        }
1034
1035        /* Both Rx and Tx are stopped */
1036        uec->grace_stopped_rx = 1;
1037        uec->grace_stopped_tx = 1;
1038
1039        /* Init UCC fast */
1040        if (ucc_fast_init(uf_info, &uccf)) {
1041                printf("%s: failed to init ucc fast\n", __FUNCTION__);
1042                return -ENOMEM;
1043        }
1044
1045        /* Save uccf */
1046        uec->uccf = uccf;
1047
1048        /* Convert the Tx threads number */
1049        if (uec_convert_threads_num(uec_info->num_threads_tx,
1050                                         &num_threads_tx)) {
1051                return -EINVAL;
1052        }
1053
1054        /* Convert the Rx threads number */
1055        if (uec_convert_threads_num(uec_info->num_threads_rx,
1056                                         &num_threads_rx)) {
1057                return -EINVAL;
1058        }
1059
1060        uf_regs = uccf->uf_regs;
1061
1062        /* UEC register is following UCC fast registers */
1063        uec_regs = (uec_t *)(&uf_regs->ucc_eth);
1064
1065        /* Save the UEC register pointer to UEC private struct */
1066        uec->uec_regs = uec_regs;
1067
1068        /* Init UPSMR, enable hardware statistics (UCC) */
1069        out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
1070
1071        /* Init MACCFG1, flow control disable, disable Tx and Rx */
1072        out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
1073
1074        /* Init MACCFG2, length check, MAC PAD and CRC enable */
1075        out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
1076
1077        /* Setup MAC interface mode */
1078        uec_set_mac_if_mode(uec, uec_info->enet_interface_type, uec_info->speed);
1079
1080        /* Setup MII management base */
1081#ifndef CONFIG_eTSEC_MDIO_BUS
1082        uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
1083#else
1084        uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
1085#endif
1086
1087        /* Setup MII master clock source */
1088        qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
1089
1090        /* Setup UTBIPAR */
1091        utbipar = in_be32(&uec_regs->utbipar);
1092        utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1093
1094        /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC.
1095         * This frees up the remaining SMI addresses for use.
1096         */
1097        utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << UTBIPAR_PHY_ADDRESS_SHIFT;
1098        out_be32(&uec_regs->utbipar, utbipar);
1099
1100        /* Configure the TBI for SGMII operation */
1101        if ((uec->uec_info->enet_interface_type == SGMII) &&
1102           (uec->uec_info->speed == 1000)) {
1103                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1104                        ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1105
1106                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1107                        ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1108
1109                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1110                        ENET_TBI_MII_CR, TBICR_SETTINGS);
1111        }
1112
1113        /* Allocate Tx BDs */
1114        length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
1115                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
1116                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1117        if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
1118                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
1119                length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1120        }
1121
1122        align = UEC_TX_BD_RING_ALIGNMENT;
1123        uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
1124        if (uec->tx_bd_ring_offset != 0) {
1125                uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
1126                                                 & ~(align - 1));
1127        }
1128
1129        /* Zero all of Tx BDs */
1130        memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
1131
1132        /* Allocate Rx BDs */
1133        length = uec_info->rx_bd_ring_len * SIZEOFBD;
1134        align = UEC_RX_BD_RING_ALIGNMENT;
1135        uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
1136        if (uec->rx_bd_ring_offset != 0) {
1137                uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
1138                                                         & ~(align - 1));
1139        }
1140
1141        /* Zero all of Rx BDs */
1142        memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
1143
1144        /* Allocate Rx buffer */
1145        length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
1146        align = UEC_RX_DATA_BUF_ALIGNMENT;
1147        uec->rx_buf_offset = (u32)malloc(length + align);
1148        if (uec->rx_buf_offset != 0) {
1149                uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
1150                                                 & ~(align - 1));
1151        }
1152
1153        /* Zero all of the Rx buffer */
1154        memset((void *)(uec->rx_buf_offset), 0, length + align);
1155
1156        /* Init TxBD ring */
1157        bd = (qe_bd_t *)uec->p_tx_bd_ring;
1158        uec->txBd = bd;
1159
1160        for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
1161                BD_DATA_CLEAR(bd);
1162                BD_STATUS_SET(bd, 0);
1163                BD_LENGTH_SET(bd, 0);
1164                bd ++;
1165        }
1166        BD_STATUS_SET((--bd), TxBD_WRAP);
1167
1168        /* Init RxBD ring */
1169        bd = (qe_bd_t *)uec->p_rx_bd_ring;
1170        uec->rxBd = bd;
1171        buf = uec->p_rx_buf;
1172        for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
1173                BD_DATA_SET(bd, buf);
1174                BD_LENGTH_SET(bd, 0);
1175                BD_STATUS_SET(bd, RxBD_EMPTY);
1176                buf += MAX_RXBUF_LEN;
1177                bd ++;
1178        }
1179        BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
1180
1181        /* Init global Tx parameter RAM */
1182        uec_init_tx_parameter(uec, num_threads_tx);
1183
1184        /* Init global Rx parameter RAM */
1185        uec_init_rx_parameter(uec, num_threads_rx);
1186
1187        /* Init ethernet Tx and Rx parameter command */
1188        if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
1189                                         num_threads_rx)) {
1190                printf("%s issue init enet cmd failed\n", __FUNCTION__);
1191                return -ENOMEM;
1192        }
1193
1194        return 0;
1195}
1196
1197static int uec_init(struct eth_device* dev, bd_t *bd)
1198{
1199        uec_private_t           *uec;
1200        int                     err, i;
1201        struct phy_info         *curphy;
1202
1203        uec = (uec_private_t *)dev->priv;
1204
1205        if (uec->the_first_run == 0) {
1206                err = init_phy(dev);
1207                if (err) {
1208                        printf("%s: Cannot initialize PHY, aborting.\n",
1209                               dev->name);
1210                        return err;
1211                }
1212
1213                curphy = uec->mii_info->phyinfo;
1214
1215                if (curphy->config_aneg) {
1216                        err = curphy->config_aneg(uec->mii_info);
1217                        if (err) {
1218                                printf("%s: Can't negotiate PHY\n", dev->name);
1219                                return err;
1220                        }
1221                }
1222
1223                /* Give PHYs up to 5 sec to report a link */
1224                i = 50;
1225                do {
1226                        err = curphy->read_status(uec->mii_info);
1227                        udelay(100000);
1228                } while (((i-- > 0) && !uec->mii_info->link) || err);
1229
1230                if (err || i <= 0)
1231                        printf("warning: %s: timeout on PHY link\n", dev->name);
1232
1233                adjust_link(dev);
1234                uec->the_first_run = 1;
1235        }
1236
1237        /* Set up the MAC address */
1238        if (dev->enetaddr[0] & 0x01) {
1239                printf("%s: MacAddress is multcast address\n",
1240                         __FUNCTION__);
1241                return -1;
1242        }
1243        uec_set_mac_address(uec, dev->enetaddr);
1244
1245
1246        err = uec_open(uec, COMM_DIR_RX_AND_TX);
1247        if (err) {
1248                printf("%s: cannot enable UEC device\n", dev->name);
1249                return -1;
1250        }
1251
1252        phy_change(dev);
1253
1254        return (uec->mii_info->link ? 0 : -1);
1255}
1256
1257static void uec_halt(struct eth_device* dev)
1258{
1259        uec_private_t   *uec = (uec_private_t *)dev->priv;
1260        uec_stop(uec, COMM_DIR_RX_AND_TX);
1261}
1262
1263static int uec_send(struct eth_device* dev, volatile void *buf, int len)
1264{
1265        uec_private_t           *uec;
1266        ucc_fast_private_t      *uccf;
1267        volatile qe_bd_t        *bd;
1268        u16                     status;
1269        int                     i;
1270        int                     result = 0;
1271
1272        uec = (uec_private_t *)dev->priv;
1273        uccf = uec->uccf;
1274        bd = uec->txBd;
1275
1276        /* Find an empty TxBD */
1277        for (i = 0; bd->status & TxBD_READY; i++) {
1278                if (i > 0x100000) {
1279                        printf("%s: tx buffer not ready\n", dev->name);
1280                        return result;
1281                }
1282        }
1283
1284        /* Init TxBD */
1285        BD_DATA_SET(bd, buf);
1286        BD_LENGTH_SET(bd, len);
1287        status = bd->status;
1288        status &= BD_WRAP;
1289        status |= (TxBD_READY | TxBD_LAST);
1290        BD_STATUS_SET(bd, status);
1291
1292        /* Tell UCC to transmit the buffer */
1293        ucc_fast_transmit_on_demand(uccf);
1294
1295        /* Wait for buffer to be transmitted */
1296        for (i = 0; bd->status & TxBD_READY; i++) {
1297                if (i > 0x100000) {
1298                        printf("%s: tx error\n", dev->name);
1299                        return result;
1300                }
1301        }
1302
1303        /* Ok, the buffer be transimitted */
1304        BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
1305        uec->txBd = bd;
1306        result = 1;
1307
1308        return result;
1309}
1310
1311static int uec_recv(struct eth_device* dev)
1312{
1313        uec_private_t           *uec = dev->priv;
1314        volatile qe_bd_t        *bd;
1315        u16                     status;
1316        u16                     len;
1317        u8                      *data;
1318
1319        bd = uec->rxBd;
1320        status = bd->status;
1321
1322        while (!(status & RxBD_EMPTY)) {
1323                if (!(status & RxBD_ERROR)) {
1324                        data = BD_DATA(bd);
1325                        len = BD_LENGTH(bd);
1326                        NetReceive(data, len);
1327                } else {
1328                        printf("%s: Rx error\n", dev->name);
1329                }
1330                status &= BD_CLEAN;
1331                BD_LENGTH_SET(bd, 0);
1332                BD_STATUS_SET(bd, status | RxBD_EMPTY);
1333                BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
1334                status = bd->status;
1335        }
1336        uec->rxBd = bd;
1337
1338        return 1;
1339}
1340
1341int uec_initialize(bd_t *bis, uec_info_t *uec_info)
1342{
1343        struct eth_device       *dev;
1344        int                     i;
1345        uec_private_t           *uec;
1346        int                     err;
1347
1348        dev = (struct eth_device *)malloc(sizeof(struct eth_device));
1349        if (!dev)
1350                return 0;
1351        memset(dev, 0, sizeof(struct eth_device));
1352
1353        /* Allocate the UEC private struct */
1354        uec = (uec_private_t *)malloc(sizeof(uec_private_t));
1355        if (!uec) {
1356                return -ENOMEM;
1357        }
1358        memset(uec, 0, sizeof(uec_private_t));
1359
1360        /* Adjust uec_info */
1361#if (MAX_QE_RISC == 4)
1362        uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
1363        uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
1364#endif
1365
1366        devlist[uec_info->uf_info.ucc_num] = dev;
1367
1368        uec->uec_info = uec_info;
1369        uec->dev = dev;
1370
1371        sprintf(dev->name, "FSL UEC%d", uec_info->uf_info.ucc_num);
1372        dev->iobase = 0;
1373        dev->priv = (void *)uec;
1374        dev->init = uec_init;
1375        dev->halt = uec_halt;
1376        dev->send = uec_send;
1377        dev->recv = uec_recv;
1378
1379        /* Clear the ethnet address */
1380        for (i = 0; i < 6; i++)
1381                dev->enetaddr[i] = 0;
1382
1383        eth_register(dev);
1384
1385        err = uec_startup(uec);
1386        if (err) {
1387                printf("%s: Cannot configure net device, aborting.",dev->name);
1388                return err;
1389        }
1390
1391#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
1392        && !defined(BITBANGMII)
1393        miiphy_register(dev->name, uec_miiphy_read, uec_miiphy_write);
1394#endif
1395
1396        return 1;
1397}
1398
1399int uec_eth_init(bd_t *bis, uec_info_t *uecs, int num)
1400{
1401        int i;
1402
1403        for (i = 0; i < num; i++)
1404                uec_initialize(bis, &uecs[i]);
1405
1406        return 0;
1407}
1408
1409int uec_standard_init(bd_t *bis)
1410{
1411        return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
1412}
1413