uboot/drivers/qe/uec.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
   4 *
   5 * Dave Liu <daveliu@freescale.com>
   6 */
   7
   8#include <common.h>
   9#include <net.h>
  10#include <malloc.h>
  11#include <linux/errno.h>
  12#include <asm/io.h>
  13#include <linux/immap_qe.h>
  14#include "uccf.h"
  15#include "uec.h"
  16#include "uec_phy.h"
  17#include "miiphy.h"
  18#include <fsl_qe.h>
  19#include <phy.h>
  20
  21/* Default UTBIPAR SMI address */
  22#ifndef CONFIG_UTBIPAR_INIT_TBIPA
  23#define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
  24#endif
  25
  26static uec_info_t uec_info[] = {
  27#ifdef CONFIG_UEC_ETH1
  28        STD_UEC_INFO(1),        /* UEC1 */
  29#endif
  30#ifdef CONFIG_UEC_ETH2
  31        STD_UEC_INFO(2),        /* UEC2 */
  32#endif
  33#ifdef CONFIG_UEC_ETH3
  34        STD_UEC_INFO(3),        /* UEC3 */
  35#endif
  36#ifdef CONFIG_UEC_ETH4
  37        STD_UEC_INFO(4),        /* UEC4 */
  38#endif
  39#ifdef CONFIG_UEC_ETH5
  40        STD_UEC_INFO(5),        /* UEC5 */
  41#endif
  42#ifdef CONFIG_UEC_ETH6
  43        STD_UEC_INFO(6),        /* UEC6 */
  44#endif
  45#ifdef CONFIG_UEC_ETH7
  46        STD_UEC_INFO(7),        /* UEC7 */
  47#endif
  48#ifdef CONFIG_UEC_ETH8
  49        STD_UEC_INFO(8),        /* UEC8 */
  50#endif
  51};
  52
  53#define MAXCONTROLLERS  (8)
  54
  55static struct eth_device *devlist[MAXCONTROLLERS];
  56
  57static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  58{
  59        uec_t           *uec_regs;
  60        u32             maccfg1;
  61
  62        if (!uec) {
  63                printf("%s: uec not initial\n", __FUNCTION__);
  64                return -EINVAL;
  65        }
  66        uec_regs = uec->uec_regs;
  67
  68        maccfg1 = in_be32(&uec_regs->maccfg1);
  69
  70        if (mode & COMM_DIR_TX) {
  71                maccfg1 |= MACCFG1_ENABLE_TX;
  72                out_be32(&uec_regs->maccfg1, maccfg1);
  73                uec->mac_tx_enabled = 1;
  74        }
  75
  76        if (mode & COMM_DIR_RX) {
  77                maccfg1 |= MACCFG1_ENABLE_RX;
  78                out_be32(&uec_regs->maccfg1, maccfg1);
  79                uec->mac_rx_enabled = 1;
  80        }
  81
  82        return 0;
  83}
  84
  85static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
  86{
  87        uec_t           *uec_regs;
  88        u32             maccfg1;
  89
  90        if (!uec) {
  91                printf("%s: uec not initial\n", __FUNCTION__);
  92                return -EINVAL;
  93        }
  94        uec_regs = uec->uec_regs;
  95
  96        maccfg1 = in_be32(&uec_regs->maccfg1);
  97
  98        if (mode & COMM_DIR_TX) {
  99                maccfg1 &= ~MACCFG1_ENABLE_TX;
 100                out_be32(&uec_regs->maccfg1, maccfg1);
 101                uec->mac_tx_enabled = 0;
 102        }
 103
 104        if (mode & COMM_DIR_RX) {
 105                maccfg1 &= ~MACCFG1_ENABLE_RX;
 106                out_be32(&uec_regs->maccfg1, maccfg1);
 107                uec->mac_rx_enabled = 0;
 108        }
 109
 110        return 0;
 111}
 112
 113static int uec_graceful_stop_tx(uec_private_t *uec)
 114{
 115        ucc_fast_t              *uf_regs;
 116        u32                     cecr_subblock;
 117        u32                     ucce;
 118
 119        if (!uec || !uec->uccf) {
 120                printf("%s: No handle passed.\n", __FUNCTION__);
 121                return -EINVAL;
 122        }
 123
 124        uf_regs = uec->uccf->uf_regs;
 125
 126        /* Clear the grace stop event */
 127        out_be32(&uf_regs->ucce, UCCE_GRA);
 128
 129        /* Issue host command */
 130        cecr_subblock =
 131                 ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 132        qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
 133                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 134
 135        /* Wait for command to complete */
 136        do {
 137                ucce = in_be32(&uf_regs->ucce);
 138        } while (! (ucce & UCCE_GRA));
 139
 140        uec->grace_stopped_tx = 1;
 141
 142        return 0;
 143}
 144
 145static int uec_graceful_stop_rx(uec_private_t *uec)
 146{
 147        u32             cecr_subblock;
 148        u8              ack;
 149
 150        if (!uec) {
 151                printf("%s: No handle passed.\n", __FUNCTION__);
 152                return -EINVAL;
 153        }
 154
 155        if (!uec->p_rx_glbl_pram) {
 156                printf("%s: No init rx global parameter\n", __FUNCTION__);
 157                return -EINVAL;
 158        }
 159
 160        /* Clear acknowledge bit */
 161        ack = uec->p_rx_glbl_pram->rxgstpack;
 162        ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
 163        uec->p_rx_glbl_pram->rxgstpack = ack;
 164
 165        /* Keep issuing cmd and checking ack bit until it is asserted */
 166        do {
 167                /* Issue host command */
 168                cecr_subblock =
 169                 ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 170                qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
 171                                 (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 172                ack = uec->p_rx_glbl_pram->rxgstpack;
 173        } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
 174
 175        uec->grace_stopped_rx = 1;
 176
 177        return 0;
 178}
 179
 180static int uec_restart_tx(uec_private_t *uec)
 181{
 182        u32             cecr_subblock;
 183
 184        if (!uec || !uec->uec_info) {
 185                printf("%s: No handle passed.\n", __FUNCTION__);
 186                return -EINVAL;
 187        }
 188
 189        cecr_subblock =
 190         ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 191        qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
 192                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 193
 194        uec->grace_stopped_tx = 0;
 195
 196        return 0;
 197}
 198
 199static int uec_restart_rx(uec_private_t *uec)
 200{
 201        u32             cecr_subblock;
 202
 203        if (!uec || !uec->uec_info) {
 204                printf("%s: No handle passed.\n", __FUNCTION__);
 205                return -EINVAL;
 206        }
 207
 208        cecr_subblock =
 209         ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 210        qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
 211                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 212
 213        uec->grace_stopped_rx = 0;
 214
 215        return 0;
 216}
 217
 218static int uec_open(uec_private_t *uec, comm_dir_e mode)
 219{
 220        ucc_fast_private_t      *uccf;
 221
 222        if (!uec || !uec->uccf) {
 223                printf("%s: No handle passed.\n", __FUNCTION__);
 224                return -EINVAL;
 225        }
 226        uccf = uec->uccf;
 227
 228        /* check if the UCC number is in range. */
 229        if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 230                printf("%s: ucc_num out of range.\n", __FUNCTION__);
 231                return -EINVAL;
 232        }
 233
 234        /* Enable MAC */
 235        uec_mac_enable(uec, mode);
 236
 237        /* Enable UCC fast */
 238        ucc_fast_enable(uccf, mode);
 239
 240        /* RISC microcode start */
 241        if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
 242                uec_restart_tx(uec);
 243        }
 244        if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
 245                uec_restart_rx(uec);
 246        }
 247
 248        return 0;
 249}
 250
 251static int uec_stop(uec_private_t *uec, comm_dir_e mode)
 252{
 253        if (!uec || !uec->uccf) {
 254                printf("%s: No handle passed.\n", __FUNCTION__);
 255                return -EINVAL;
 256        }
 257
 258        /* check if the UCC number is in range. */
 259        if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 260                printf("%s: ucc_num out of range.\n", __FUNCTION__);
 261                return -EINVAL;
 262        }
 263        /* Stop any transmissions */
 264        if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
 265                uec_graceful_stop_tx(uec);
 266        }
 267        /* Stop any receptions */
 268        if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
 269                uec_graceful_stop_rx(uec);
 270        }
 271
 272        /* Disable the UCC fast */
 273        ucc_fast_disable(uec->uccf, mode);
 274
 275        /* Disable the MAC */
 276        uec_mac_disable(uec, mode);
 277
 278        return 0;
 279}
 280
 281static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
 282{
 283        uec_t           *uec_regs;
 284        u32             maccfg2;
 285
 286        if (!uec) {
 287                printf("%s: uec not initial\n", __FUNCTION__);
 288                return -EINVAL;
 289        }
 290        uec_regs = uec->uec_regs;
 291
 292        if (duplex == DUPLEX_HALF) {
 293                maccfg2 = in_be32(&uec_regs->maccfg2);
 294                maccfg2 &= ~MACCFG2_FDX;
 295                out_be32(&uec_regs->maccfg2, maccfg2);
 296        }
 297
 298        if (duplex == DUPLEX_FULL) {
 299                maccfg2 = in_be32(&uec_regs->maccfg2);
 300                maccfg2 |= MACCFG2_FDX;
 301                out_be32(&uec_regs->maccfg2, maccfg2);
 302        }
 303
 304        return 0;
 305}
 306
 307static int uec_set_mac_if_mode(uec_private_t *uec,
 308                phy_interface_t if_mode, int speed)
 309{
 310        phy_interface_t         enet_if_mode;
 311        uec_t                   *uec_regs;
 312        u32                     upsmr;
 313        u32                     maccfg2;
 314
 315        if (!uec) {
 316                printf("%s: uec not initial\n", __FUNCTION__);
 317                return -EINVAL;
 318        }
 319
 320        uec_regs = uec->uec_regs;
 321        enet_if_mode = if_mode;
 322
 323        maccfg2 = in_be32(&uec_regs->maccfg2);
 324        maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
 325
 326        upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
 327        upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
 328
 329        switch (speed) {
 330                case SPEED_10:
 331                        maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 332                        switch (enet_if_mode) {
 333                                case PHY_INTERFACE_MODE_MII:
 334                                        break;
 335                                case PHY_INTERFACE_MODE_RGMII:
 336                                        upsmr |= (UPSMR_RPM | UPSMR_R10M);
 337                                        break;
 338                                case PHY_INTERFACE_MODE_RMII:
 339                                        upsmr |= (UPSMR_R10M | UPSMR_RMM);
 340                                        break;
 341                                default:
 342                                        return -EINVAL;
 343                                        break;
 344                        }
 345                        break;
 346                case SPEED_100:
 347                        maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 348                        switch (enet_if_mode) {
 349                                case PHY_INTERFACE_MODE_MII:
 350                                        break;
 351                                case PHY_INTERFACE_MODE_RGMII:
 352                                        upsmr |= UPSMR_RPM;
 353                                        break;
 354                                case PHY_INTERFACE_MODE_RMII:
 355                                        upsmr |= UPSMR_RMM;
 356                                        break;
 357                                default:
 358                                        return -EINVAL;
 359                                        break;
 360                        }
 361                        break;
 362                case SPEED_1000:
 363                        maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 364                        switch (enet_if_mode) {
 365                                case PHY_INTERFACE_MODE_GMII:
 366                                        break;
 367                                case PHY_INTERFACE_MODE_TBI:
 368                                        upsmr |= UPSMR_TBIM;
 369                                        break;
 370                                case PHY_INTERFACE_MODE_RTBI:
 371                                        upsmr |= (UPSMR_RPM | UPSMR_TBIM);
 372                                        break;
 373                                case PHY_INTERFACE_MODE_RGMII_RXID:
 374                                case PHY_INTERFACE_MODE_RGMII_TXID:
 375                                case PHY_INTERFACE_MODE_RGMII_ID:
 376                                case PHY_INTERFACE_MODE_RGMII:
 377                                        upsmr |= UPSMR_RPM;
 378                                        break;
 379                                case PHY_INTERFACE_MODE_SGMII:
 380                                        upsmr |= UPSMR_SGMM;
 381                                        break;
 382                                default:
 383                                        return -EINVAL;
 384                                        break;
 385                        }
 386                        break;
 387                default:
 388                        return -EINVAL;
 389                        break;
 390        }
 391
 392        out_be32(&uec_regs->maccfg2, maccfg2);
 393        out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
 394
 395        return 0;
 396}
 397
 398static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
 399{
 400        uint            timeout = 0x1000;
 401        u32             miimcfg = 0;
 402
 403        miimcfg = in_be32(&uec_mii_regs->miimcfg);
 404        miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
 405        out_be32(&uec_mii_regs->miimcfg, miimcfg);
 406
 407        /* Wait until the bus is free */
 408        while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
 409        if (timeout <= 0) {
 410                printf("%s: The MII Bus is stuck!", __FUNCTION__);
 411                return -ETIMEDOUT;
 412        }
 413
 414        return 0;
 415}
 416
 417static int init_phy(struct eth_device *dev)
 418{
 419        uec_private_t           *uec;
 420        uec_mii_t               *umii_regs;
 421        struct uec_mii_info     *mii_info;
 422        struct phy_info         *curphy;
 423        int                     err;
 424
 425        uec = (uec_private_t *)dev->priv;
 426        umii_regs = uec->uec_mii_regs;
 427
 428        uec->oldlink = 0;
 429        uec->oldspeed = 0;
 430        uec->oldduplex = -1;
 431
 432        mii_info = malloc(sizeof(*mii_info));
 433        if (!mii_info) {
 434                printf("%s: Could not allocate mii_info", dev->name);
 435                return -ENOMEM;
 436        }
 437        memset(mii_info, 0, sizeof(*mii_info));
 438
 439        if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 440                mii_info->speed = SPEED_1000;
 441        } else {
 442                mii_info->speed = SPEED_100;
 443        }
 444
 445        mii_info->duplex = DUPLEX_FULL;
 446        mii_info->pause = 0;
 447        mii_info->link = 1;
 448
 449        mii_info->advertising = (ADVERTISED_10baseT_Half |
 450                                ADVERTISED_10baseT_Full |
 451                                ADVERTISED_100baseT_Half |
 452                                ADVERTISED_100baseT_Full |
 453                                ADVERTISED_1000baseT_Full);
 454        mii_info->autoneg = 1;
 455        mii_info->mii_id = uec->uec_info->phy_address;
 456        mii_info->dev = dev;
 457
 458        mii_info->mdio_read = &uec_read_phy_reg;
 459        mii_info->mdio_write = &uec_write_phy_reg;
 460
 461        uec->mii_info = mii_info;
 462
 463        qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
 464
 465        if (init_mii_management_configuration(umii_regs)) {
 466                printf("%s: The MII Bus is stuck!", dev->name);
 467                err = -1;
 468                goto bus_fail;
 469        }
 470
 471        /* get info for this PHY */
 472        curphy = uec_get_phy_info(uec->mii_info);
 473        if (!curphy) {
 474                printf("%s: No PHY found", dev->name);
 475                err = -1;
 476                goto no_phy;
 477        }
 478
 479        mii_info->phyinfo = curphy;
 480
 481        /* Run the commands which initialize the PHY */
 482        if (curphy->init) {
 483                err = curphy->init(uec->mii_info);
 484                if (err)
 485                        goto phy_init_fail;
 486        }
 487
 488        return 0;
 489
 490phy_init_fail:
 491no_phy:
 492bus_fail:
 493        free(mii_info);
 494        return err;
 495}
 496
 497static void adjust_link(struct eth_device *dev)
 498{
 499        uec_private_t           *uec = (uec_private_t *)dev->priv;
 500        struct uec_mii_info     *mii_info = uec->mii_info;
 501
 502        extern void change_phy_interface_mode(struct eth_device *dev,
 503                                 phy_interface_t mode, int speed);
 504
 505        if (mii_info->link) {
 506                /* Now we make sure that we can be in full duplex mode.
 507                * If not, we operate in half-duplex mode. */
 508                if (mii_info->duplex != uec->oldduplex) {
 509                        if (!(mii_info->duplex)) {
 510                                uec_set_mac_duplex(uec, DUPLEX_HALF);
 511                                printf("%s: Half Duplex\n", dev->name);
 512                        } else {
 513                                uec_set_mac_duplex(uec, DUPLEX_FULL);
 514                                printf("%s: Full Duplex\n", dev->name);
 515                        }
 516                        uec->oldduplex = mii_info->duplex;
 517                }
 518
 519                if (mii_info->speed != uec->oldspeed) {
 520                        phy_interface_t mode =
 521                                uec->uec_info->enet_interface_type;
 522                        if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 523                                switch (mii_info->speed) {
 524                                case SPEED_1000:
 525                                        break;
 526                                case SPEED_100:
 527                                        printf ("switching to rgmii 100\n");
 528                                        mode = PHY_INTERFACE_MODE_RGMII;
 529                                        break;
 530                                case SPEED_10:
 531                                        printf ("switching to rgmii 10\n");
 532                                        mode = PHY_INTERFACE_MODE_RGMII;
 533                                        break;
 534                                default:
 535                                        printf("%s: Ack,Speed(%d)is illegal\n",
 536                                                dev->name, mii_info->speed);
 537                                        break;
 538                                }
 539                        }
 540
 541                        /* change phy */
 542                        change_phy_interface_mode(dev, mode, mii_info->speed);
 543                        /* change the MAC interface mode */
 544                        uec_set_mac_if_mode(uec, mode, mii_info->speed);
 545
 546                        printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
 547                        uec->oldspeed = mii_info->speed;
 548                }
 549
 550                if (!uec->oldlink) {
 551                        printf("%s: Link is up\n", dev->name);
 552                        uec->oldlink = 1;
 553                }
 554
 555        } else { /* if (mii_info->link) */
 556                if (uec->oldlink) {
 557                        printf("%s: Link is down\n", dev->name);
 558                        uec->oldlink = 0;
 559                        uec->oldspeed = 0;
 560                        uec->oldduplex = -1;
 561                }
 562        }
 563}
 564
 565static void phy_change(struct eth_device *dev)
 566{
 567        uec_private_t   *uec = (uec_private_t *)dev->priv;
 568
 569#if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
 570        ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 571
 572        /* QE9 and QE12 need to be set for enabling QE MII managment signals */
 573        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
 574        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
 575#endif
 576
 577        /* Update the link, speed, duplex */
 578        uec->mii_info->phyinfo->read_status(uec->mii_info);
 579
 580#if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
 581        /*
 582         * QE12 is muxed with LBCTL, it needs to be released for enabling
 583         * LBCTL signal for LBC usage.
 584         */
 585        clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
 586#endif
 587
 588        /* Adjust the interface according to speed */
 589        adjust_link(dev);
 590}
 591
 592#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 593
 594/*
 595 * Find a device index from the devlist by name
 596 *
 597 * Returns:
 598 *  The index where the device is located, -1 on error
 599 */
 600static int uec_miiphy_find_dev_by_name(const char *devname)
 601{
 602        int i;
 603
 604        for (i = 0; i < MAXCONTROLLERS; i++) {
 605                if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
 606                        break;
 607                }
 608        }
 609
 610        /* If device cannot be found, returns -1 */
 611        if (i == MAXCONTROLLERS) {
 612                debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
 613                i = -1;
 614        }
 615
 616        return i;
 617}
 618
 619/*
 620 * Read a MII PHY register.
 621 *
 622 * Returns:
 623 *  0 on success
 624 */
 625static int uec_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg)
 626{
 627        unsigned short value = 0;
 628        int devindex = 0;
 629
 630        if (bus->name == NULL) {
 631                debug("%s: NULL pointer given\n", __FUNCTION__);
 632        } else {
 633                devindex = uec_miiphy_find_dev_by_name(bus->name);
 634                if (devindex >= 0) {
 635                        value = uec_read_phy_reg(devlist[devindex], addr, reg);
 636                }
 637        }
 638        return value;
 639}
 640
 641/*
 642 * Write a MII PHY register.
 643 *
 644 * Returns:
 645 *  0 on success
 646 */
 647static int uec_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
 648                            u16 value)
 649{
 650        int devindex = 0;
 651
 652        if (bus->name == NULL) {
 653                debug("%s: NULL pointer given\n", __FUNCTION__);
 654        } else {
 655                devindex = uec_miiphy_find_dev_by_name(bus->name);
 656                if (devindex >= 0) {
 657                        uec_write_phy_reg(devlist[devindex], addr, reg, value);
 658                }
 659        }
 660        return 0;
 661}
 662#endif
 663
 664static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
 665{
 666        uec_t           *uec_regs;
 667        u32             mac_addr1;
 668        u32             mac_addr2;
 669
 670        if (!uec) {
 671                printf("%s: uec not initial\n", __FUNCTION__);
 672                return -EINVAL;
 673        }
 674
 675        uec_regs = uec->uec_regs;
 676
 677        /* if a station address of 0x12345678ABCD, perform a write to
 678        MACSTNADDR1 of 0xCDAB7856,
 679        MACSTNADDR2 of 0x34120000 */
 680
 681        mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
 682                        (mac_addr[3] << 8)  | (mac_addr[2]);
 683        out_be32(&uec_regs->macstnaddr1, mac_addr1);
 684
 685        mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
 686        out_be32(&uec_regs->macstnaddr2, mac_addr2);
 687
 688        return 0;
 689}
 690
 691static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
 692                                         int *threads_num_ret)
 693{
 694        int     num_threads_numerica;
 695
 696        switch (threads_num) {
 697                case UEC_NUM_OF_THREADS_1:
 698                        num_threads_numerica = 1;
 699                        break;
 700                case UEC_NUM_OF_THREADS_2:
 701                        num_threads_numerica = 2;
 702                        break;
 703                case UEC_NUM_OF_THREADS_4:
 704                        num_threads_numerica = 4;
 705                        break;
 706                case UEC_NUM_OF_THREADS_6:
 707                        num_threads_numerica = 6;
 708                        break;
 709                case UEC_NUM_OF_THREADS_8:
 710                        num_threads_numerica = 8;
 711                        break;
 712                default:
 713                        printf("%s: Bad number of threads value.",
 714                                 __FUNCTION__);
 715                        return -EINVAL;
 716        }
 717
 718        *threads_num_ret = num_threads_numerica;
 719
 720        return 0;
 721}
 722
 723static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
 724{
 725        uec_info_t      *uec_info;
 726        u32             end_bd;
 727        u8              bmrx = 0;
 728        int             i;
 729
 730        uec_info = uec->uec_info;
 731
 732        /* Alloc global Tx parameter RAM page */
 733        uec->tx_glbl_pram_offset = qe_muram_alloc(
 734                                sizeof(uec_tx_global_pram_t),
 735                                 UEC_TX_GLOBAL_PRAM_ALIGNMENT);
 736        uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
 737                                qe_muram_addr(uec->tx_glbl_pram_offset);
 738
 739        /* Zero the global Tx prameter RAM */
 740        memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
 741
 742        /* Init global Tx parameter RAM */
 743
 744        /* TEMODER, RMON statistics disable, one Tx queue */
 745        out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
 746
 747        /* SQPTR */
 748        uec->send_q_mem_reg_offset = qe_muram_alloc(
 749                                sizeof(uec_send_queue_qd_t),
 750                                 UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
 751        uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
 752                                qe_muram_addr(uec->send_q_mem_reg_offset);
 753        out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
 754
 755        /* Setup the table with TxBDs ring */
 756        end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
 757                                         * SIZEOFBD;
 758        out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
 759                                 (u32)(uec->p_tx_bd_ring));
 760        out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
 761                                                 end_bd);
 762
 763        /* Scheduler Base Pointer, we have only one Tx queue, no need it */
 764        out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
 765
 766        /* TxRMON Base Pointer, TxRMON disable, we don't need it */
 767        out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
 768
 769        /* TSTATE, global snooping, big endian, the CSB bus selected */
 770        bmrx = BMR_INIT_VALUE;
 771        out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
 772
 773        /* IPH_Offset */
 774        for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
 775                out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
 776        }
 777
 778        /* VTAG table */
 779        for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
 780                out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
 781        }
 782
 783        /* TQPTR */
 784        uec->thread_dat_tx_offset = qe_muram_alloc(
 785                num_threads_tx * sizeof(uec_thread_data_tx_t) +
 786                 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
 787
 788        uec->p_thread_data_tx = (uec_thread_data_tx_t *)
 789                                qe_muram_addr(uec->thread_dat_tx_offset);
 790        out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
 791}
 792
 793static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
 794{
 795        u8      bmrx = 0;
 796        int     i;
 797        uec_82xx_address_filtering_pram_t       *p_af_pram;
 798
 799        /* Allocate global Rx parameter RAM page */
 800        uec->rx_glbl_pram_offset = qe_muram_alloc(
 801                sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
 802        uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
 803                                qe_muram_addr(uec->rx_glbl_pram_offset);
 804
 805        /* Zero Global Rx parameter RAM */
 806        memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
 807
 808        /* Init global Rx parameter RAM */
 809        /* REMODER, Extended feature mode disable, VLAN disable,
 810         LossLess flow control disable, Receive firmware statisic disable,
 811         Extended address parsing mode disable, One Rx queues,
 812         Dynamic maximum/minimum frame length disable, IP checksum check
 813         disable, IP address alignment disable
 814        */
 815        out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
 816
 817        /* RQPTR */
 818        uec->thread_dat_rx_offset = qe_muram_alloc(
 819                        num_threads_rx * sizeof(uec_thread_data_rx_t),
 820                         UEC_THREAD_DATA_ALIGNMENT);
 821        uec->p_thread_data_rx = (uec_thread_data_rx_t *)
 822                                qe_muram_addr(uec->thread_dat_rx_offset);
 823        out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
 824
 825        /* Type_or_Len */
 826        out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
 827
 828        /* RxRMON base pointer, we don't need it */
 829        out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
 830
 831        /* IntCoalescingPTR, we don't need it, no interrupt */
 832        out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
 833
 834        /* RSTATE, global snooping, big endian, the CSB bus selected */
 835        bmrx = BMR_INIT_VALUE;
 836        out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
 837
 838        /* MRBLR */
 839        out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
 840
 841        /* RBDQPTR */
 842        uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
 843                                sizeof(uec_rx_bd_queues_entry_t) + \
 844                                sizeof(uec_rx_prefetched_bds_t),
 845                                 UEC_RX_BD_QUEUES_ALIGNMENT);
 846        uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
 847                                qe_muram_addr(uec->rx_bd_qs_tbl_offset);
 848
 849        /* Zero it */
 850        memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
 851                                        sizeof(uec_rx_prefetched_bds_t));
 852        out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
 853        out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
 854                 (u32)uec->p_rx_bd_ring);
 855
 856        /* MFLR */
 857        out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
 858        /* MINFLR */
 859        out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
 860        /* MAXD1 */
 861        out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
 862        /* MAXD2 */
 863        out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
 864        /* ECAM_PTR */
 865        out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
 866        /* L2QT */
 867        out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
 868        /* L3QT */
 869        for (i = 0; i < 8; i++) {
 870                out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
 871        }
 872
 873        /* VLAN_TYPE */
 874        out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
 875        /* TCI */
 876        out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
 877
 878        /* Clear PQ2 style address filtering hash table */
 879        p_af_pram = (uec_82xx_address_filtering_pram_t *) \
 880                        uec->p_rx_glbl_pram->addressfiltering;
 881
 882        p_af_pram->iaddr_h = 0;
 883        p_af_pram->iaddr_l = 0;
 884        p_af_pram->gaddr_h = 0;
 885        p_af_pram->gaddr_l = 0;
 886}
 887
 888static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
 889                                         int thread_tx, int thread_rx)
 890{
 891        uec_init_cmd_pram_t             *p_init_enet_param;
 892        u32                             init_enet_param_offset;
 893        uec_info_t                      *uec_info;
 894        int                             i;
 895        int                             snum;
 896        u32                             init_enet_offset;
 897        u32                             entry_val;
 898        u32                             command;
 899        u32                             cecr_subblock;
 900
 901        uec_info = uec->uec_info;
 902
 903        /* Allocate init enet command parameter */
 904        uec->init_enet_param_offset = qe_muram_alloc(
 905                                        sizeof(uec_init_cmd_pram_t), 4);
 906        init_enet_param_offset = uec->init_enet_param_offset;
 907        uec->p_init_enet_param = (uec_init_cmd_pram_t *)
 908                                qe_muram_addr(uec->init_enet_param_offset);
 909
 910        /* Zero init enet command struct */
 911        memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
 912
 913        /* Init the command struct */
 914        p_init_enet_param = uec->p_init_enet_param;
 915        p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
 916        p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
 917        p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
 918        p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
 919        p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
 920        p_init_enet_param->largestexternallookupkeysize = 0;
 921
 922        p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
 923                                         << ENET_INIT_PARAM_RGF_SHIFT;
 924        p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
 925                                         << ENET_INIT_PARAM_TGF_SHIFT;
 926
 927        /* Init Rx global parameter pointer */
 928        p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
 929                                                 (u32)uec_info->risc_rx;
 930
 931        /* Init Rx threads */
 932        for (i = 0; i < (thread_rx + 1); i++) {
 933                if ((snum = qe_get_snum()) < 0) {
 934                        printf("%s can not get snum\n", __FUNCTION__);
 935                        return -ENOMEM;
 936                }
 937
 938                if (i==0) {
 939                        init_enet_offset = 0;
 940                } else {
 941                        init_enet_offset = qe_muram_alloc(
 942                                        sizeof(uec_thread_rx_pram_t),
 943                                         UEC_THREAD_RX_PRAM_ALIGNMENT);
 944                }
 945
 946                entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 947                                 init_enet_offset | (u32)uec_info->risc_rx;
 948                p_init_enet_param->rxthread[i] = entry_val;
 949        }
 950
 951        /* Init Tx global parameter pointer */
 952        p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
 953                                         (u32)uec_info->risc_tx;
 954
 955        /* Init Tx threads */
 956        for (i = 0; i < thread_tx; i++) {
 957                if ((snum = qe_get_snum()) < 0) {
 958                        printf("%s can not get snum\n", __FUNCTION__);
 959                        return -ENOMEM;
 960                }
 961
 962                init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
 963                                                 UEC_THREAD_TX_PRAM_ALIGNMENT);
 964
 965                entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 966                                 init_enet_offset | (u32)uec_info->risc_tx;
 967                p_init_enet_param->txthread[i] = entry_val;
 968        }
 969
 970        __asm__ __volatile__("sync");
 971
 972        /* Issue QE command */
 973        command = QE_INIT_TX_RX;
 974        cecr_subblock = ucc_fast_get_qe_cr_subblock(
 975                                uec->uec_info->uf_info.ucc_num);
 976        qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
 977                                                 init_enet_param_offset);
 978
 979        return 0;
 980}
 981
 982static int uec_startup(uec_private_t *uec)
 983{
 984        uec_info_t                      *uec_info;
 985        ucc_fast_info_t                 *uf_info;
 986        ucc_fast_private_t              *uccf;
 987        ucc_fast_t                      *uf_regs;
 988        uec_t                           *uec_regs;
 989        int                             num_threads_tx;
 990        int                             num_threads_rx;
 991        u32                             utbipar;
 992        u32                             length;
 993        u32                             align;
 994        qe_bd_t                         *bd;
 995        u8                              *buf;
 996        int                             i;
 997
 998        if (!uec || !uec->uec_info) {
 999                printf("%s: uec or uec_info not initial\n", __FUNCTION__);
1000                return -EINVAL;
1001        }
1002
1003        uec_info = uec->uec_info;
1004        uf_info = &(uec_info->uf_info);
1005
1006        /* Check if Rx BD ring len is illegal */
1007        if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
1008                (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
1009                printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
1010                         __FUNCTION__);
1011                return -EINVAL;
1012        }
1013
1014        /* Check if Tx BD ring len is illegal */
1015        if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
1016                printf("%s: Tx BD ring length must not be smaller than 2.\n",
1017                         __FUNCTION__);
1018                return -EINVAL;
1019        }
1020
1021        /* Check if MRBLR is illegal */
1022        if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN  % UEC_MRBLR_ALIGNMENT)) {
1023                printf("%s: max rx buffer length must be mutliple of 128.\n",
1024                         __FUNCTION__);
1025                return -EINVAL;
1026        }
1027
1028        /* Both Rx and Tx are stopped */
1029        uec->grace_stopped_rx = 1;
1030        uec->grace_stopped_tx = 1;
1031
1032        /* Init UCC fast */
1033        if (ucc_fast_init(uf_info, &uccf)) {
1034                printf("%s: failed to init ucc fast\n", __FUNCTION__);
1035                return -ENOMEM;
1036        }
1037
1038        /* Save uccf */
1039        uec->uccf = uccf;
1040
1041        /* Convert the Tx threads number */
1042        if (uec_convert_threads_num(uec_info->num_threads_tx,
1043                                         &num_threads_tx)) {
1044                return -EINVAL;
1045        }
1046
1047        /* Convert the Rx threads number */
1048        if (uec_convert_threads_num(uec_info->num_threads_rx,
1049                                         &num_threads_rx)) {
1050                return -EINVAL;
1051        }
1052
1053        uf_regs = uccf->uf_regs;
1054
1055        /* UEC register is following UCC fast registers */
1056        uec_regs = (uec_t *)(&uf_regs->ucc_eth);
1057
1058        /* Save the UEC register pointer to UEC private struct */
1059        uec->uec_regs = uec_regs;
1060
1061        /* Init UPSMR, enable hardware statistics (UCC) */
1062        out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
1063
1064        /* Init MACCFG1, flow control disable, disable Tx and Rx */
1065        out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
1066
1067        /* Init MACCFG2, length check, MAC PAD and CRC enable */
1068        out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
1069
1070        /* Setup MAC interface mode */
1071        uec_set_mac_if_mode(uec, uec_info->enet_interface_type, uec_info->speed);
1072
1073        /* Setup MII management base */
1074#ifndef CONFIG_eTSEC_MDIO_BUS
1075        uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
1076#else
1077        uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
1078#endif
1079
1080        /* Setup MII master clock source */
1081        qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
1082
1083        /* Setup UTBIPAR */
1084        utbipar = in_be32(&uec_regs->utbipar);
1085        utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1086
1087        /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC.
1088         * This frees up the remaining SMI addresses for use.
1089         */
1090        utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << UTBIPAR_PHY_ADDRESS_SHIFT;
1091        out_be32(&uec_regs->utbipar, utbipar);
1092
1093        /* Configure the TBI for SGMII operation */
1094        if ((uec->uec_info->enet_interface_type == PHY_INTERFACE_MODE_SGMII) &&
1095           (uec->uec_info->speed == SPEED_1000)) {
1096                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1097                        ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1098
1099                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1100                        ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1101
1102                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1103                        ENET_TBI_MII_CR, TBICR_SETTINGS);
1104        }
1105
1106        /* Allocate Tx BDs */
1107        length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
1108                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
1109                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1110        if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
1111                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
1112                length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1113        }
1114
1115        align = UEC_TX_BD_RING_ALIGNMENT;
1116        uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
1117        if (uec->tx_bd_ring_offset != 0) {
1118                uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
1119                                                 & ~(align - 1));
1120        }
1121
1122        /* Zero all of Tx BDs */
1123        memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
1124
1125        /* Allocate Rx BDs */
1126        length = uec_info->rx_bd_ring_len * SIZEOFBD;
1127        align = UEC_RX_BD_RING_ALIGNMENT;
1128        uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
1129        if (uec->rx_bd_ring_offset != 0) {
1130                uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
1131                                                         & ~(align - 1));
1132        }
1133
1134        /* Zero all of Rx BDs */
1135        memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
1136
1137        /* Allocate Rx buffer */
1138        length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
1139        align = UEC_RX_DATA_BUF_ALIGNMENT;
1140        uec->rx_buf_offset = (u32)malloc(length + align);
1141        if (uec->rx_buf_offset != 0) {
1142                uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
1143                                                 & ~(align - 1));
1144        }
1145
1146        /* Zero all of the Rx buffer */
1147        memset((void *)(uec->rx_buf_offset), 0, length + align);
1148
1149        /* Init TxBD ring */
1150        bd = (qe_bd_t *)uec->p_tx_bd_ring;
1151        uec->txBd = bd;
1152
1153        for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
1154                BD_DATA_CLEAR(bd);
1155                BD_STATUS_SET(bd, 0);
1156                BD_LENGTH_SET(bd, 0);
1157                bd ++;
1158        }
1159        BD_STATUS_SET((--bd), TxBD_WRAP);
1160
1161        /* Init RxBD ring */
1162        bd = (qe_bd_t *)uec->p_rx_bd_ring;
1163        uec->rxBd = bd;
1164        buf = uec->p_rx_buf;
1165        for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
1166                BD_DATA_SET(bd, buf);
1167                BD_LENGTH_SET(bd, 0);
1168                BD_STATUS_SET(bd, RxBD_EMPTY);
1169                buf += MAX_RXBUF_LEN;
1170                bd ++;
1171        }
1172        BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
1173
1174        /* Init global Tx parameter RAM */
1175        uec_init_tx_parameter(uec, num_threads_tx);
1176
1177        /* Init global Rx parameter RAM */
1178        uec_init_rx_parameter(uec, num_threads_rx);
1179
1180        /* Init ethernet Tx and Rx parameter command */
1181        if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
1182                                         num_threads_rx)) {
1183                printf("%s issue init enet cmd failed\n", __FUNCTION__);
1184                return -ENOMEM;
1185        }
1186
1187        return 0;
1188}
1189
1190static int uec_init(struct eth_device* dev, bd_t *bd)
1191{
1192        uec_private_t           *uec;
1193        int                     err, i;
1194        struct phy_info         *curphy;
1195#if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
1196        ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
1197#endif
1198
1199        uec = (uec_private_t *)dev->priv;
1200
1201        if (uec->the_first_run == 0) {
1202#if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
1203        /* QE9 and QE12 need to be set for enabling QE MII managment signals */
1204        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
1205        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
1206#endif
1207
1208                err = init_phy(dev);
1209                if (err) {
1210                        printf("%s: Cannot initialize PHY, aborting.\n",
1211                               dev->name);
1212                        return err;
1213                }
1214
1215                curphy = uec->mii_info->phyinfo;
1216
1217                if (curphy->config_aneg) {
1218                        err = curphy->config_aneg(uec->mii_info);
1219                        if (err) {
1220                                printf("%s: Can't negotiate PHY\n", dev->name);
1221                                return err;
1222                        }
1223                }
1224
1225                /* Give PHYs up to 5 sec to report a link */
1226                i = 50;
1227                do {
1228                        err = curphy->read_status(uec->mii_info);
1229                        if (!(((i-- > 0) && !uec->mii_info->link) || err))
1230                                break;
1231                        udelay(100000);
1232                } while (1);
1233
1234#if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
1235                /* QE12 needs to be released for enabling LBCTL signal*/
1236                clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
1237#endif
1238
1239                if (err || i <= 0)
1240                        printf("warning: %s: timeout on PHY link\n", dev->name);
1241
1242                adjust_link(dev);
1243                uec->the_first_run = 1;
1244        }
1245
1246        /* Set up the MAC address */
1247        if (dev->enetaddr[0] & 0x01) {
1248                printf("%s: MacAddress is multcast address\n",
1249                         __FUNCTION__);
1250                return -1;
1251        }
1252        uec_set_mac_address(uec, dev->enetaddr);
1253
1254
1255        err = uec_open(uec, COMM_DIR_RX_AND_TX);
1256        if (err) {
1257                printf("%s: cannot enable UEC device\n", dev->name);
1258                return -1;
1259        }
1260
1261        phy_change(dev);
1262
1263        return (uec->mii_info->link ? 0 : -1);
1264}
1265
1266static void uec_halt(struct eth_device* dev)
1267{
1268        uec_private_t   *uec = (uec_private_t *)dev->priv;
1269        uec_stop(uec, COMM_DIR_RX_AND_TX);
1270}
1271
1272static int uec_send(struct eth_device *dev, void *buf, int len)
1273{
1274        uec_private_t           *uec;
1275        ucc_fast_private_t      *uccf;
1276        volatile qe_bd_t        *bd;
1277        u16                     status;
1278        int                     i;
1279        int                     result = 0;
1280
1281        uec = (uec_private_t *)dev->priv;
1282        uccf = uec->uccf;
1283        bd = uec->txBd;
1284
1285        /* Find an empty TxBD */
1286        for (i = 0; bd->status & TxBD_READY; i++) {
1287                if (i > 0x100000) {
1288                        printf("%s: tx buffer not ready\n", dev->name);
1289                        return result;
1290                }
1291        }
1292
1293        /* Init TxBD */
1294        BD_DATA_SET(bd, buf);
1295        BD_LENGTH_SET(bd, len);
1296        status = bd->status;
1297        status &= BD_WRAP;
1298        status |= (TxBD_READY | TxBD_LAST);
1299        BD_STATUS_SET(bd, status);
1300
1301        /* Tell UCC to transmit the buffer */
1302        ucc_fast_transmit_on_demand(uccf);
1303
1304        /* Wait for buffer to be transmitted */
1305        for (i = 0; bd->status & TxBD_READY; i++) {
1306                if (i > 0x100000) {
1307                        printf("%s: tx error\n", dev->name);
1308                        return result;
1309                }
1310        }
1311
1312        /* Ok, the buffer be transimitted */
1313        BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
1314        uec->txBd = bd;
1315        result = 1;
1316
1317        return result;
1318}
1319
1320static int uec_recv(struct eth_device* dev)
1321{
1322        uec_private_t           *uec = dev->priv;
1323        volatile qe_bd_t        *bd;
1324        u16                     status;
1325        u16                     len;
1326        u8                      *data;
1327
1328        bd = uec->rxBd;
1329        status = bd->status;
1330
1331        while (!(status & RxBD_EMPTY)) {
1332                if (!(status & RxBD_ERROR)) {
1333                        data = BD_DATA(bd);
1334                        len = BD_LENGTH(bd);
1335                        net_process_received_packet(data, len);
1336                } else {
1337                        printf("%s: Rx error\n", dev->name);
1338                }
1339                status &= BD_CLEAN;
1340                BD_LENGTH_SET(bd, 0);
1341                BD_STATUS_SET(bd, status | RxBD_EMPTY);
1342                BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
1343                status = bd->status;
1344        }
1345        uec->rxBd = bd;
1346
1347        return 1;
1348}
1349
1350int uec_initialize(bd_t *bis, uec_info_t *uec_info)
1351{
1352        struct eth_device       *dev;
1353        int                     i;
1354        uec_private_t           *uec;
1355        int                     err;
1356
1357        dev = (struct eth_device *)malloc(sizeof(struct eth_device));
1358        if (!dev)
1359                return 0;
1360        memset(dev, 0, sizeof(struct eth_device));
1361
1362        /* Allocate the UEC private struct */
1363        uec = (uec_private_t *)malloc(sizeof(uec_private_t));
1364        if (!uec) {
1365                return -ENOMEM;
1366        }
1367        memset(uec, 0, sizeof(uec_private_t));
1368
1369        /* Adjust uec_info */
1370#if (MAX_QE_RISC == 4)
1371        uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
1372        uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
1373#endif
1374
1375        devlist[uec_info->uf_info.ucc_num] = dev;
1376
1377        uec->uec_info = uec_info;
1378        uec->dev = dev;
1379
1380        sprintf(dev->name, "UEC%d", uec_info->uf_info.ucc_num);
1381        dev->iobase = 0;
1382        dev->priv = (void *)uec;
1383        dev->init = uec_init;
1384        dev->halt = uec_halt;
1385        dev->send = uec_send;
1386        dev->recv = uec_recv;
1387
1388        /* Clear the ethnet address */
1389        for (i = 0; i < 6; i++)
1390                dev->enetaddr[i] = 0;
1391
1392        eth_register(dev);
1393
1394        err = uec_startup(uec);
1395        if (err) {
1396                printf("%s: Cannot configure net device, aborting.",dev->name);
1397                return err;
1398        }
1399
1400#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
1401        int retval;
1402        struct mii_dev *mdiodev = mdio_alloc();
1403        if (!mdiodev)
1404                return -ENOMEM;
1405        strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
1406        mdiodev->read = uec_miiphy_read;
1407        mdiodev->write = uec_miiphy_write;
1408
1409        retval = mdio_register(mdiodev);
1410        if (retval < 0)
1411                return retval;
1412#endif
1413
1414        return 1;
1415}
1416
1417int uec_eth_init(bd_t *bis, uec_info_t *uecs, int num)
1418{
1419        int i;
1420
1421        for (i = 0; i < num; i++)
1422                uec_initialize(bis, &uecs[i]);
1423
1424        return 0;
1425}
1426
1427int uec_standard_init(bd_t *bis)
1428{
1429        return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
1430}
1431