uboot/drivers/qe/uec.c
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   1/*
   2 * Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
   3 *
   4 * Dave Liu <daveliu@freescale.com>
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <common.h>
  10#include <net.h>
  11#include <malloc.h>
  12#include <linux/errno.h>
  13#include <asm/io.h>
  14#include <linux/immap_qe.h>
  15#include "uccf.h"
  16#include "uec.h"
  17#include "uec_phy.h"
  18#include "miiphy.h"
  19#include <fsl_qe.h>
  20#include <phy.h>
  21
  22/* Default UTBIPAR SMI address */
  23#ifndef CONFIG_UTBIPAR_INIT_TBIPA
  24#define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
  25#endif
  26
  27static uec_info_t uec_info[] = {
  28#ifdef CONFIG_UEC_ETH1
  29        STD_UEC_INFO(1),        /* UEC1 */
  30#endif
  31#ifdef CONFIG_UEC_ETH2
  32        STD_UEC_INFO(2),        /* UEC2 */
  33#endif
  34#ifdef CONFIG_UEC_ETH3
  35        STD_UEC_INFO(3),        /* UEC3 */
  36#endif
  37#ifdef CONFIG_UEC_ETH4
  38        STD_UEC_INFO(4),        /* UEC4 */
  39#endif
  40#ifdef CONFIG_UEC_ETH5
  41        STD_UEC_INFO(5),        /* UEC5 */
  42#endif
  43#ifdef CONFIG_UEC_ETH6
  44        STD_UEC_INFO(6),        /* UEC6 */
  45#endif
  46#ifdef CONFIG_UEC_ETH7
  47        STD_UEC_INFO(7),        /* UEC7 */
  48#endif
  49#ifdef CONFIG_UEC_ETH8
  50        STD_UEC_INFO(8),        /* UEC8 */
  51#endif
  52};
  53
  54#define MAXCONTROLLERS  (8)
  55
  56static struct eth_device *devlist[MAXCONTROLLERS];
  57
  58static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  59{
  60        uec_t           *uec_regs;
  61        u32             maccfg1;
  62
  63        if (!uec) {
  64                printf("%s: uec not initial\n", __FUNCTION__);
  65                return -EINVAL;
  66        }
  67        uec_regs = uec->uec_regs;
  68
  69        maccfg1 = in_be32(&uec_regs->maccfg1);
  70
  71        if (mode & COMM_DIR_TX) {
  72                maccfg1 |= MACCFG1_ENABLE_TX;
  73                out_be32(&uec_regs->maccfg1, maccfg1);
  74                uec->mac_tx_enabled = 1;
  75        }
  76
  77        if (mode & COMM_DIR_RX) {
  78                maccfg1 |= MACCFG1_ENABLE_RX;
  79                out_be32(&uec_regs->maccfg1, maccfg1);
  80                uec->mac_rx_enabled = 1;
  81        }
  82
  83        return 0;
  84}
  85
  86static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
  87{
  88        uec_t           *uec_regs;
  89        u32             maccfg1;
  90
  91        if (!uec) {
  92                printf("%s: uec not initial\n", __FUNCTION__);
  93                return -EINVAL;
  94        }
  95        uec_regs = uec->uec_regs;
  96
  97        maccfg1 = in_be32(&uec_regs->maccfg1);
  98
  99        if (mode & COMM_DIR_TX) {
 100                maccfg1 &= ~MACCFG1_ENABLE_TX;
 101                out_be32(&uec_regs->maccfg1, maccfg1);
 102                uec->mac_tx_enabled = 0;
 103        }
 104
 105        if (mode & COMM_DIR_RX) {
 106                maccfg1 &= ~MACCFG1_ENABLE_RX;
 107                out_be32(&uec_regs->maccfg1, maccfg1);
 108                uec->mac_rx_enabled = 0;
 109        }
 110
 111        return 0;
 112}
 113
 114static int uec_graceful_stop_tx(uec_private_t *uec)
 115{
 116        ucc_fast_t              *uf_regs;
 117        u32                     cecr_subblock;
 118        u32                     ucce;
 119
 120        if (!uec || !uec->uccf) {
 121                printf("%s: No handle passed.\n", __FUNCTION__);
 122                return -EINVAL;
 123        }
 124
 125        uf_regs = uec->uccf->uf_regs;
 126
 127        /* Clear the grace stop event */
 128        out_be32(&uf_regs->ucce, UCCE_GRA);
 129
 130        /* Issue host command */
 131        cecr_subblock =
 132                 ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 133        qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
 134                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 135
 136        /* Wait for command to complete */
 137        do {
 138                ucce = in_be32(&uf_regs->ucce);
 139        } while (! (ucce & UCCE_GRA));
 140
 141        uec->grace_stopped_tx = 1;
 142
 143        return 0;
 144}
 145
 146static int uec_graceful_stop_rx(uec_private_t *uec)
 147{
 148        u32             cecr_subblock;
 149        u8              ack;
 150
 151        if (!uec) {
 152                printf("%s: No handle passed.\n", __FUNCTION__);
 153                return -EINVAL;
 154        }
 155
 156        if (!uec->p_rx_glbl_pram) {
 157                printf("%s: No init rx global parameter\n", __FUNCTION__);
 158                return -EINVAL;
 159        }
 160
 161        /* Clear acknowledge bit */
 162        ack = uec->p_rx_glbl_pram->rxgstpack;
 163        ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
 164        uec->p_rx_glbl_pram->rxgstpack = ack;
 165
 166        /* Keep issuing cmd and checking ack bit until it is asserted */
 167        do {
 168                /* Issue host command */
 169                cecr_subblock =
 170                 ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 171                qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
 172                                 (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 173                ack = uec->p_rx_glbl_pram->rxgstpack;
 174        } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
 175
 176        uec->grace_stopped_rx = 1;
 177
 178        return 0;
 179}
 180
 181static int uec_restart_tx(uec_private_t *uec)
 182{
 183        u32             cecr_subblock;
 184
 185        if (!uec || !uec->uec_info) {
 186                printf("%s: No handle passed.\n", __FUNCTION__);
 187                return -EINVAL;
 188        }
 189
 190        cecr_subblock =
 191         ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 192        qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
 193                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 194
 195        uec->grace_stopped_tx = 0;
 196
 197        return 0;
 198}
 199
 200static int uec_restart_rx(uec_private_t *uec)
 201{
 202        u32             cecr_subblock;
 203
 204        if (!uec || !uec->uec_info) {
 205                printf("%s: No handle passed.\n", __FUNCTION__);
 206                return -EINVAL;
 207        }
 208
 209        cecr_subblock =
 210         ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 211        qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
 212                         (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 213
 214        uec->grace_stopped_rx = 0;
 215
 216        return 0;
 217}
 218
 219static int uec_open(uec_private_t *uec, comm_dir_e mode)
 220{
 221        ucc_fast_private_t      *uccf;
 222
 223        if (!uec || !uec->uccf) {
 224                printf("%s: No handle passed.\n", __FUNCTION__);
 225                return -EINVAL;
 226        }
 227        uccf = uec->uccf;
 228
 229        /* check if the UCC number is in range. */
 230        if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 231                printf("%s: ucc_num out of range.\n", __FUNCTION__);
 232                return -EINVAL;
 233        }
 234
 235        /* Enable MAC */
 236        uec_mac_enable(uec, mode);
 237
 238        /* Enable UCC fast */
 239        ucc_fast_enable(uccf, mode);
 240
 241        /* RISC microcode start */
 242        if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
 243                uec_restart_tx(uec);
 244        }
 245        if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
 246                uec_restart_rx(uec);
 247        }
 248
 249        return 0;
 250}
 251
 252static int uec_stop(uec_private_t *uec, comm_dir_e mode)
 253{
 254        if (!uec || !uec->uccf) {
 255                printf("%s: No handle passed.\n", __FUNCTION__);
 256                return -EINVAL;
 257        }
 258
 259        /* check if the UCC number is in range. */
 260        if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 261                printf("%s: ucc_num out of range.\n", __FUNCTION__);
 262                return -EINVAL;
 263        }
 264        /* Stop any transmissions */
 265        if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
 266                uec_graceful_stop_tx(uec);
 267        }
 268        /* Stop any receptions */
 269        if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
 270                uec_graceful_stop_rx(uec);
 271        }
 272
 273        /* Disable the UCC fast */
 274        ucc_fast_disable(uec->uccf, mode);
 275
 276        /* Disable the MAC */
 277        uec_mac_disable(uec, mode);
 278
 279        return 0;
 280}
 281
 282static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
 283{
 284        uec_t           *uec_regs;
 285        u32             maccfg2;
 286
 287        if (!uec) {
 288                printf("%s: uec not initial\n", __FUNCTION__);
 289                return -EINVAL;
 290        }
 291        uec_regs = uec->uec_regs;
 292
 293        if (duplex == DUPLEX_HALF) {
 294                maccfg2 = in_be32(&uec_regs->maccfg2);
 295                maccfg2 &= ~MACCFG2_FDX;
 296                out_be32(&uec_regs->maccfg2, maccfg2);
 297        }
 298
 299        if (duplex == DUPLEX_FULL) {
 300                maccfg2 = in_be32(&uec_regs->maccfg2);
 301                maccfg2 |= MACCFG2_FDX;
 302                out_be32(&uec_regs->maccfg2, maccfg2);
 303        }
 304
 305        return 0;
 306}
 307
 308static int uec_set_mac_if_mode(uec_private_t *uec,
 309                phy_interface_t if_mode, int speed)
 310{
 311        phy_interface_t         enet_if_mode;
 312        uec_t                   *uec_regs;
 313        u32                     upsmr;
 314        u32                     maccfg2;
 315
 316        if (!uec) {
 317                printf("%s: uec not initial\n", __FUNCTION__);
 318                return -EINVAL;
 319        }
 320
 321        uec_regs = uec->uec_regs;
 322        enet_if_mode = if_mode;
 323
 324        maccfg2 = in_be32(&uec_regs->maccfg2);
 325        maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
 326
 327        upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
 328        upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
 329
 330        switch (speed) {
 331                case SPEED_10:
 332                        maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 333                        switch (enet_if_mode) {
 334                                case PHY_INTERFACE_MODE_MII:
 335                                        break;
 336                                case PHY_INTERFACE_MODE_RGMII:
 337                                        upsmr |= (UPSMR_RPM | UPSMR_R10M);
 338                                        break;
 339                                case PHY_INTERFACE_MODE_RMII:
 340                                        upsmr |= (UPSMR_R10M | UPSMR_RMM);
 341                                        break;
 342                                default:
 343                                        return -EINVAL;
 344                                        break;
 345                        }
 346                        break;
 347                case SPEED_100:
 348                        maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 349                        switch (enet_if_mode) {
 350                                case PHY_INTERFACE_MODE_MII:
 351                                        break;
 352                                case PHY_INTERFACE_MODE_RGMII:
 353                                        upsmr |= UPSMR_RPM;
 354                                        break;
 355                                case PHY_INTERFACE_MODE_RMII:
 356                                        upsmr |= UPSMR_RMM;
 357                                        break;
 358                                default:
 359                                        return -EINVAL;
 360                                        break;
 361                        }
 362                        break;
 363                case SPEED_1000:
 364                        maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 365                        switch (enet_if_mode) {
 366                                case PHY_INTERFACE_MODE_GMII:
 367                                        break;
 368                                case PHY_INTERFACE_MODE_TBI:
 369                                        upsmr |= UPSMR_TBIM;
 370                                        break;
 371                                case PHY_INTERFACE_MODE_RTBI:
 372                                        upsmr |= (UPSMR_RPM | UPSMR_TBIM);
 373                                        break;
 374                                case PHY_INTERFACE_MODE_RGMII_RXID:
 375                                case PHY_INTERFACE_MODE_RGMII_TXID:
 376                                case PHY_INTERFACE_MODE_RGMII_ID:
 377                                case PHY_INTERFACE_MODE_RGMII:
 378                                        upsmr |= UPSMR_RPM;
 379                                        break;
 380                                case PHY_INTERFACE_MODE_SGMII:
 381                                        upsmr |= UPSMR_SGMM;
 382                                        break;
 383                                default:
 384                                        return -EINVAL;
 385                                        break;
 386                        }
 387                        break;
 388                default:
 389                        return -EINVAL;
 390                        break;
 391        }
 392
 393        out_be32(&uec_regs->maccfg2, maccfg2);
 394        out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
 395
 396        return 0;
 397}
 398
 399static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
 400{
 401        uint            timeout = 0x1000;
 402        u32             miimcfg = 0;
 403
 404        miimcfg = in_be32(&uec_mii_regs->miimcfg);
 405        miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
 406        out_be32(&uec_mii_regs->miimcfg, miimcfg);
 407
 408        /* Wait until the bus is free */
 409        while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
 410        if (timeout <= 0) {
 411                printf("%s: The MII Bus is stuck!", __FUNCTION__);
 412                return -ETIMEDOUT;
 413        }
 414
 415        return 0;
 416}
 417
 418static int init_phy(struct eth_device *dev)
 419{
 420        uec_private_t           *uec;
 421        uec_mii_t               *umii_regs;
 422        struct uec_mii_info     *mii_info;
 423        struct phy_info         *curphy;
 424        int                     err;
 425
 426        uec = (uec_private_t *)dev->priv;
 427        umii_regs = uec->uec_mii_regs;
 428
 429        uec->oldlink = 0;
 430        uec->oldspeed = 0;
 431        uec->oldduplex = -1;
 432
 433        mii_info = malloc(sizeof(*mii_info));
 434        if (!mii_info) {
 435                printf("%s: Could not allocate mii_info", dev->name);
 436                return -ENOMEM;
 437        }
 438        memset(mii_info, 0, sizeof(*mii_info));
 439
 440        if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 441                mii_info->speed = SPEED_1000;
 442        } else {
 443                mii_info->speed = SPEED_100;
 444        }
 445
 446        mii_info->duplex = DUPLEX_FULL;
 447        mii_info->pause = 0;
 448        mii_info->link = 1;
 449
 450        mii_info->advertising = (ADVERTISED_10baseT_Half |
 451                                ADVERTISED_10baseT_Full |
 452                                ADVERTISED_100baseT_Half |
 453                                ADVERTISED_100baseT_Full |
 454                                ADVERTISED_1000baseT_Full);
 455        mii_info->autoneg = 1;
 456        mii_info->mii_id = uec->uec_info->phy_address;
 457        mii_info->dev = dev;
 458
 459        mii_info->mdio_read = &uec_read_phy_reg;
 460        mii_info->mdio_write = &uec_write_phy_reg;
 461
 462        uec->mii_info = mii_info;
 463
 464        qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
 465
 466        if (init_mii_management_configuration(umii_regs)) {
 467                printf("%s: The MII Bus is stuck!", dev->name);
 468                err = -1;
 469                goto bus_fail;
 470        }
 471
 472        /* get info for this PHY */
 473        curphy = uec_get_phy_info(uec->mii_info);
 474        if (!curphy) {
 475                printf("%s: No PHY found", dev->name);
 476                err = -1;
 477                goto no_phy;
 478        }
 479
 480        mii_info->phyinfo = curphy;
 481
 482        /* Run the commands which initialize the PHY */
 483        if (curphy->init) {
 484                err = curphy->init(uec->mii_info);
 485                if (err)
 486                        goto phy_init_fail;
 487        }
 488
 489        return 0;
 490
 491phy_init_fail:
 492no_phy:
 493bus_fail:
 494        free(mii_info);
 495        return err;
 496}
 497
 498static void adjust_link(struct eth_device *dev)
 499{
 500        uec_private_t           *uec = (uec_private_t *)dev->priv;
 501        struct uec_mii_info     *mii_info = uec->mii_info;
 502
 503        extern void change_phy_interface_mode(struct eth_device *dev,
 504                                 phy_interface_t mode, int speed);
 505
 506        if (mii_info->link) {
 507                /* Now we make sure that we can be in full duplex mode.
 508                * If not, we operate in half-duplex mode. */
 509                if (mii_info->duplex != uec->oldduplex) {
 510                        if (!(mii_info->duplex)) {
 511                                uec_set_mac_duplex(uec, DUPLEX_HALF);
 512                                printf("%s: Half Duplex\n", dev->name);
 513                        } else {
 514                                uec_set_mac_duplex(uec, DUPLEX_FULL);
 515                                printf("%s: Full Duplex\n", dev->name);
 516                        }
 517                        uec->oldduplex = mii_info->duplex;
 518                }
 519
 520                if (mii_info->speed != uec->oldspeed) {
 521                        phy_interface_t mode =
 522                                uec->uec_info->enet_interface_type;
 523                        if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 524                                switch (mii_info->speed) {
 525                                case SPEED_1000:
 526                                        break;
 527                                case SPEED_100:
 528                                        printf ("switching to rgmii 100\n");
 529                                        mode = PHY_INTERFACE_MODE_RGMII;
 530                                        break;
 531                                case SPEED_10:
 532                                        printf ("switching to rgmii 10\n");
 533                                        mode = PHY_INTERFACE_MODE_RGMII;
 534                                        break;
 535                                default:
 536                                        printf("%s: Ack,Speed(%d)is illegal\n",
 537                                                dev->name, mii_info->speed);
 538                                        break;
 539                                }
 540                        }
 541
 542                        /* change phy */
 543                        change_phy_interface_mode(dev, mode, mii_info->speed);
 544                        /* change the MAC interface mode */
 545                        uec_set_mac_if_mode(uec, mode, mii_info->speed);
 546
 547                        printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
 548                        uec->oldspeed = mii_info->speed;
 549                }
 550
 551                if (!uec->oldlink) {
 552                        printf("%s: Link is up\n", dev->name);
 553                        uec->oldlink = 1;
 554                }
 555
 556        } else { /* if (mii_info->link) */
 557                if (uec->oldlink) {
 558                        printf("%s: Link is down\n", dev->name);
 559                        uec->oldlink = 0;
 560                        uec->oldspeed = 0;
 561                        uec->oldduplex = -1;
 562                }
 563        }
 564}
 565
 566static void phy_change(struct eth_device *dev)
 567{
 568        uec_private_t   *uec = (uec_private_t *)dev->priv;
 569
 570#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
 571        ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 572
 573        /* QE9 and QE12 need to be set for enabling QE MII managment signals */
 574        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
 575        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
 576#endif
 577
 578        /* Update the link, speed, duplex */
 579        uec->mii_info->phyinfo->read_status(uec->mii_info);
 580
 581#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
 582        /*
 583         * QE12 is muxed with LBCTL, it needs to be released for enabling
 584         * LBCTL signal for LBC usage.
 585         */
 586        clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
 587#endif
 588
 589        /* Adjust the interface according to speed */
 590        adjust_link(dev);
 591}
 592
 593#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 594
 595/*
 596 * Find a device index from the devlist by name
 597 *
 598 * Returns:
 599 *  The index where the device is located, -1 on error
 600 */
 601static int uec_miiphy_find_dev_by_name(const char *devname)
 602{
 603        int i;
 604
 605        for (i = 0; i < MAXCONTROLLERS; i++) {
 606                if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
 607                        break;
 608                }
 609        }
 610
 611        /* If device cannot be found, returns -1 */
 612        if (i == MAXCONTROLLERS) {
 613                debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
 614                i = -1;
 615        }
 616
 617        return i;
 618}
 619
 620/*
 621 * Read a MII PHY register.
 622 *
 623 * Returns:
 624 *  0 on success
 625 */
 626static int uec_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg)
 627{
 628        unsigned short value = 0;
 629        int devindex = 0;
 630
 631        if (bus->name == NULL) {
 632                debug("%s: NULL pointer given\n", __FUNCTION__);
 633        } else {
 634                devindex = uec_miiphy_find_dev_by_name(bus->name);
 635                if (devindex >= 0) {
 636                        value = uec_read_phy_reg(devlist[devindex], addr, reg);
 637                }
 638        }
 639        return value;
 640}
 641
 642/*
 643 * Write a MII PHY register.
 644 *
 645 * Returns:
 646 *  0 on success
 647 */
 648static int uec_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
 649                            u16 value)
 650{
 651        int devindex = 0;
 652
 653        if (bus->name == NULL) {
 654                debug("%s: NULL pointer given\n", __FUNCTION__);
 655        } else {
 656                devindex = uec_miiphy_find_dev_by_name(bus->name);
 657                if (devindex >= 0) {
 658                        uec_write_phy_reg(devlist[devindex], addr, reg, value);
 659                }
 660        }
 661        return 0;
 662}
 663#endif
 664
 665static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
 666{
 667        uec_t           *uec_regs;
 668        u32             mac_addr1;
 669        u32             mac_addr2;
 670
 671        if (!uec) {
 672                printf("%s: uec not initial\n", __FUNCTION__);
 673                return -EINVAL;
 674        }
 675
 676        uec_regs = uec->uec_regs;
 677
 678        /* if a station address of 0x12345678ABCD, perform a write to
 679        MACSTNADDR1 of 0xCDAB7856,
 680        MACSTNADDR2 of 0x34120000 */
 681
 682        mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
 683                        (mac_addr[3] << 8)  | (mac_addr[2]);
 684        out_be32(&uec_regs->macstnaddr1, mac_addr1);
 685
 686        mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
 687        out_be32(&uec_regs->macstnaddr2, mac_addr2);
 688
 689        return 0;
 690}
 691
 692static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
 693                                         int *threads_num_ret)
 694{
 695        int     num_threads_numerica;
 696
 697        switch (threads_num) {
 698                case UEC_NUM_OF_THREADS_1:
 699                        num_threads_numerica = 1;
 700                        break;
 701                case UEC_NUM_OF_THREADS_2:
 702                        num_threads_numerica = 2;
 703                        break;
 704                case UEC_NUM_OF_THREADS_4:
 705                        num_threads_numerica = 4;
 706                        break;
 707                case UEC_NUM_OF_THREADS_6:
 708                        num_threads_numerica = 6;
 709                        break;
 710                case UEC_NUM_OF_THREADS_8:
 711                        num_threads_numerica = 8;
 712                        break;
 713                default:
 714                        printf("%s: Bad number of threads value.",
 715                                 __FUNCTION__);
 716                        return -EINVAL;
 717        }
 718
 719        *threads_num_ret = num_threads_numerica;
 720
 721        return 0;
 722}
 723
 724static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
 725{
 726        uec_info_t      *uec_info;
 727        u32             end_bd;
 728        u8              bmrx = 0;
 729        int             i;
 730
 731        uec_info = uec->uec_info;
 732
 733        /* Alloc global Tx parameter RAM page */
 734        uec->tx_glbl_pram_offset = qe_muram_alloc(
 735                                sizeof(uec_tx_global_pram_t),
 736                                 UEC_TX_GLOBAL_PRAM_ALIGNMENT);
 737        uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
 738                                qe_muram_addr(uec->tx_glbl_pram_offset);
 739
 740        /* Zero the global Tx prameter RAM */
 741        memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
 742
 743        /* Init global Tx parameter RAM */
 744
 745        /* TEMODER, RMON statistics disable, one Tx queue */
 746        out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
 747
 748        /* SQPTR */
 749        uec->send_q_mem_reg_offset = qe_muram_alloc(
 750                                sizeof(uec_send_queue_qd_t),
 751                                 UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
 752        uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
 753                                qe_muram_addr(uec->send_q_mem_reg_offset);
 754        out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
 755
 756        /* Setup the table with TxBDs ring */
 757        end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
 758                                         * SIZEOFBD;
 759        out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
 760                                 (u32)(uec->p_tx_bd_ring));
 761        out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
 762                                                 end_bd);
 763
 764        /* Scheduler Base Pointer, we have only one Tx queue, no need it */
 765        out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
 766
 767        /* TxRMON Base Pointer, TxRMON disable, we don't need it */
 768        out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
 769
 770        /* TSTATE, global snooping, big endian, the CSB bus selected */
 771        bmrx = BMR_INIT_VALUE;
 772        out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
 773
 774        /* IPH_Offset */
 775        for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
 776                out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
 777        }
 778
 779        /* VTAG table */
 780        for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
 781                out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
 782        }
 783
 784        /* TQPTR */
 785        uec->thread_dat_tx_offset = qe_muram_alloc(
 786                num_threads_tx * sizeof(uec_thread_data_tx_t) +
 787                 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
 788
 789        uec->p_thread_data_tx = (uec_thread_data_tx_t *)
 790                                qe_muram_addr(uec->thread_dat_tx_offset);
 791        out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
 792}
 793
 794static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
 795{
 796        u8      bmrx = 0;
 797        int     i;
 798        uec_82xx_address_filtering_pram_t       *p_af_pram;
 799
 800        /* Allocate global Rx parameter RAM page */
 801        uec->rx_glbl_pram_offset = qe_muram_alloc(
 802                sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
 803        uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
 804                                qe_muram_addr(uec->rx_glbl_pram_offset);
 805
 806        /* Zero Global Rx parameter RAM */
 807        memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
 808
 809        /* Init global Rx parameter RAM */
 810        /* REMODER, Extended feature mode disable, VLAN disable,
 811         LossLess flow control disable, Receive firmware statisic disable,
 812         Extended address parsing mode disable, One Rx queues,
 813         Dynamic maximum/minimum frame length disable, IP checksum check
 814         disable, IP address alignment disable
 815        */
 816        out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
 817
 818        /* RQPTR */
 819        uec->thread_dat_rx_offset = qe_muram_alloc(
 820                        num_threads_rx * sizeof(uec_thread_data_rx_t),
 821                         UEC_THREAD_DATA_ALIGNMENT);
 822        uec->p_thread_data_rx = (uec_thread_data_rx_t *)
 823                                qe_muram_addr(uec->thread_dat_rx_offset);
 824        out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
 825
 826        /* Type_or_Len */
 827        out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
 828
 829        /* RxRMON base pointer, we don't need it */
 830        out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
 831
 832        /* IntCoalescingPTR, we don't need it, no interrupt */
 833        out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
 834
 835        /* RSTATE, global snooping, big endian, the CSB bus selected */
 836        bmrx = BMR_INIT_VALUE;
 837        out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
 838
 839        /* MRBLR */
 840        out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
 841
 842        /* RBDQPTR */
 843        uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
 844                                sizeof(uec_rx_bd_queues_entry_t) + \
 845                                sizeof(uec_rx_prefetched_bds_t),
 846                                 UEC_RX_BD_QUEUES_ALIGNMENT);
 847        uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
 848                                qe_muram_addr(uec->rx_bd_qs_tbl_offset);
 849
 850        /* Zero it */
 851        memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
 852                                        sizeof(uec_rx_prefetched_bds_t));
 853        out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
 854        out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
 855                 (u32)uec->p_rx_bd_ring);
 856
 857        /* MFLR */
 858        out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
 859        /* MINFLR */
 860        out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
 861        /* MAXD1 */
 862        out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
 863        /* MAXD2 */
 864        out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
 865        /* ECAM_PTR */
 866        out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
 867        /* L2QT */
 868        out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
 869        /* L3QT */
 870        for (i = 0; i < 8; i++) {
 871                out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
 872        }
 873
 874        /* VLAN_TYPE */
 875        out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
 876        /* TCI */
 877        out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
 878
 879        /* Clear PQ2 style address filtering hash table */
 880        p_af_pram = (uec_82xx_address_filtering_pram_t *) \
 881                        uec->p_rx_glbl_pram->addressfiltering;
 882
 883        p_af_pram->iaddr_h = 0;
 884        p_af_pram->iaddr_l = 0;
 885        p_af_pram->gaddr_h = 0;
 886        p_af_pram->gaddr_l = 0;
 887}
 888
 889static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
 890                                         int thread_tx, int thread_rx)
 891{
 892        uec_init_cmd_pram_t             *p_init_enet_param;
 893        u32                             init_enet_param_offset;
 894        uec_info_t                      *uec_info;
 895        int                             i;
 896        int                             snum;
 897        u32                             init_enet_offset;
 898        u32                             entry_val;
 899        u32                             command;
 900        u32                             cecr_subblock;
 901
 902        uec_info = uec->uec_info;
 903
 904        /* Allocate init enet command parameter */
 905        uec->init_enet_param_offset = qe_muram_alloc(
 906                                        sizeof(uec_init_cmd_pram_t), 4);
 907        init_enet_param_offset = uec->init_enet_param_offset;
 908        uec->p_init_enet_param = (uec_init_cmd_pram_t *)
 909                                qe_muram_addr(uec->init_enet_param_offset);
 910
 911        /* Zero init enet command struct */
 912        memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
 913
 914        /* Init the command struct */
 915        p_init_enet_param = uec->p_init_enet_param;
 916        p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
 917        p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
 918        p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
 919        p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
 920        p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
 921        p_init_enet_param->largestexternallookupkeysize = 0;
 922
 923        p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
 924                                         << ENET_INIT_PARAM_RGF_SHIFT;
 925        p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
 926                                         << ENET_INIT_PARAM_TGF_SHIFT;
 927
 928        /* Init Rx global parameter pointer */
 929        p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
 930                                                 (u32)uec_info->risc_rx;
 931
 932        /* Init Rx threads */
 933        for (i = 0; i < (thread_rx + 1); i++) {
 934                if ((snum = qe_get_snum()) < 0) {
 935                        printf("%s can not get snum\n", __FUNCTION__);
 936                        return -ENOMEM;
 937                }
 938
 939                if (i==0) {
 940                        init_enet_offset = 0;
 941                } else {
 942                        init_enet_offset = qe_muram_alloc(
 943                                        sizeof(uec_thread_rx_pram_t),
 944                                         UEC_THREAD_RX_PRAM_ALIGNMENT);
 945                }
 946
 947                entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 948                                 init_enet_offset | (u32)uec_info->risc_rx;
 949                p_init_enet_param->rxthread[i] = entry_val;
 950        }
 951
 952        /* Init Tx global parameter pointer */
 953        p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
 954                                         (u32)uec_info->risc_tx;
 955
 956        /* Init Tx threads */
 957        for (i = 0; i < thread_tx; i++) {
 958                if ((snum = qe_get_snum()) < 0) {
 959                        printf("%s can not get snum\n", __FUNCTION__);
 960                        return -ENOMEM;
 961                }
 962
 963                init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
 964                                                 UEC_THREAD_TX_PRAM_ALIGNMENT);
 965
 966                entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 967                                 init_enet_offset | (u32)uec_info->risc_tx;
 968                p_init_enet_param->txthread[i] = entry_val;
 969        }
 970
 971        __asm__ __volatile__("sync");
 972
 973        /* Issue QE command */
 974        command = QE_INIT_TX_RX;
 975        cecr_subblock = ucc_fast_get_qe_cr_subblock(
 976                                uec->uec_info->uf_info.ucc_num);
 977        qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
 978                                                 init_enet_param_offset);
 979
 980        return 0;
 981}
 982
 983static int uec_startup(uec_private_t *uec)
 984{
 985        uec_info_t                      *uec_info;
 986        ucc_fast_info_t                 *uf_info;
 987        ucc_fast_private_t              *uccf;
 988        ucc_fast_t                      *uf_regs;
 989        uec_t                           *uec_regs;
 990        int                             num_threads_tx;
 991        int                             num_threads_rx;
 992        u32                             utbipar;
 993        u32                             length;
 994        u32                             align;
 995        qe_bd_t                         *bd;
 996        u8                              *buf;
 997        int                             i;
 998
 999        if (!uec || !uec->uec_info) {
1000                printf("%s: uec or uec_info not initial\n", __FUNCTION__);
1001                return -EINVAL;
1002        }
1003
1004        uec_info = uec->uec_info;
1005        uf_info = &(uec_info->uf_info);
1006
1007        /* Check if Rx BD ring len is illegal */
1008        if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
1009                (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
1010                printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
1011                         __FUNCTION__);
1012                return -EINVAL;
1013        }
1014
1015        /* Check if Tx BD ring len is illegal */
1016        if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
1017                printf("%s: Tx BD ring length must not be smaller than 2.\n",
1018                         __FUNCTION__);
1019                return -EINVAL;
1020        }
1021
1022        /* Check if MRBLR is illegal */
1023        if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN  % UEC_MRBLR_ALIGNMENT)) {
1024                printf("%s: max rx buffer length must be mutliple of 128.\n",
1025                         __FUNCTION__);
1026                return -EINVAL;
1027        }
1028
1029        /* Both Rx and Tx are stopped */
1030        uec->grace_stopped_rx = 1;
1031        uec->grace_stopped_tx = 1;
1032
1033        /* Init UCC fast */
1034        if (ucc_fast_init(uf_info, &uccf)) {
1035                printf("%s: failed to init ucc fast\n", __FUNCTION__);
1036                return -ENOMEM;
1037        }
1038
1039        /* Save uccf */
1040        uec->uccf = uccf;
1041
1042        /* Convert the Tx threads number */
1043        if (uec_convert_threads_num(uec_info->num_threads_tx,
1044                                         &num_threads_tx)) {
1045                return -EINVAL;
1046        }
1047
1048        /* Convert the Rx threads number */
1049        if (uec_convert_threads_num(uec_info->num_threads_rx,
1050                                         &num_threads_rx)) {
1051                return -EINVAL;
1052        }
1053
1054        uf_regs = uccf->uf_regs;
1055
1056        /* UEC register is following UCC fast registers */
1057        uec_regs = (uec_t *)(&uf_regs->ucc_eth);
1058
1059        /* Save the UEC register pointer to UEC private struct */
1060        uec->uec_regs = uec_regs;
1061
1062        /* Init UPSMR, enable hardware statistics (UCC) */
1063        out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
1064
1065        /* Init MACCFG1, flow control disable, disable Tx and Rx */
1066        out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
1067
1068        /* Init MACCFG2, length check, MAC PAD and CRC enable */
1069        out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
1070
1071        /* Setup MAC interface mode */
1072        uec_set_mac_if_mode(uec, uec_info->enet_interface_type, uec_info->speed);
1073
1074        /* Setup MII management base */
1075#ifndef CONFIG_eTSEC_MDIO_BUS
1076        uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
1077#else
1078        uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
1079#endif
1080
1081        /* Setup MII master clock source */
1082        qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
1083
1084        /* Setup UTBIPAR */
1085        utbipar = in_be32(&uec_regs->utbipar);
1086        utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1087
1088        /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC.
1089         * This frees up the remaining SMI addresses for use.
1090         */
1091        utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << UTBIPAR_PHY_ADDRESS_SHIFT;
1092        out_be32(&uec_regs->utbipar, utbipar);
1093
1094        /* Configure the TBI for SGMII operation */
1095        if ((uec->uec_info->enet_interface_type == PHY_INTERFACE_MODE_SGMII) &&
1096           (uec->uec_info->speed == SPEED_1000)) {
1097                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1098                        ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1099
1100                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1101                        ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1102
1103                uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1104                        ENET_TBI_MII_CR, TBICR_SETTINGS);
1105        }
1106
1107        /* Allocate Tx BDs */
1108        length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
1109                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
1110                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1111        if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
1112                 UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
1113                length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1114        }
1115
1116        align = UEC_TX_BD_RING_ALIGNMENT;
1117        uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
1118        if (uec->tx_bd_ring_offset != 0) {
1119                uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
1120                                                 & ~(align - 1));
1121        }
1122
1123        /* Zero all of Tx BDs */
1124        memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
1125
1126        /* Allocate Rx BDs */
1127        length = uec_info->rx_bd_ring_len * SIZEOFBD;
1128        align = UEC_RX_BD_RING_ALIGNMENT;
1129        uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
1130        if (uec->rx_bd_ring_offset != 0) {
1131                uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
1132                                                         & ~(align - 1));
1133        }
1134
1135        /* Zero all of Rx BDs */
1136        memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
1137
1138        /* Allocate Rx buffer */
1139        length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
1140        align = UEC_RX_DATA_BUF_ALIGNMENT;
1141        uec->rx_buf_offset = (u32)malloc(length + align);
1142        if (uec->rx_buf_offset != 0) {
1143                uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
1144                                                 & ~(align - 1));
1145        }
1146
1147        /* Zero all of the Rx buffer */
1148        memset((void *)(uec->rx_buf_offset), 0, length + align);
1149
1150        /* Init TxBD ring */
1151        bd = (qe_bd_t *)uec->p_tx_bd_ring;
1152        uec->txBd = bd;
1153
1154        for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
1155                BD_DATA_CLEAR(bd);
1156                BD_STATUS_SET(bd, 0);
1157                BD_LENGTH_SET(bd, 0);
1158                bd ++;
1159        }
1160        BD_STATUS_SET((--bd), TxBD_WRAP);
1161
1162        /* Init RxBD ring */
1163        bd = (qe_bd_t *)uec->p_rx_bd_ring;
1164        uec->rxBd = bd;
1165        buf = uec->p_rx_buf;
1166        for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
1167                BD_DATA_SET(bd, buf);
1168                BD_LENGTH_SET(bd, 0);
1169                BD_STATUS_SET(bd, RxBD_EMPTY);
1170                buf += MAX_RXBUF_LEN;
1171                bd ++;
1172        }
1173        BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
1174
1175        /* Init global Tx parameter RAM */
1176        uec_init_tx_parameter(uec, num_threads_tx);
1177
1178        /* Init global Rx parameter RAM */
1179        uec_init_rx_parameter(uec, num_threads_rx);
1180
1181        /* Init ethernet Tx and Rx parameter command */
1182        if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
1183                                         num_threads_rx)) {
1184                printf("%s issue init enet cmd failed\n", __FUNCTION__);
1185                return -ENOMEM;
1186        }
1187
1188        return 0;
1189}
1190
1191static int uec_init(struct eth_device* dev, bd_t *bd)
1192{
1193        uec_private_t           *uec;
1194        int                     err, i;
1195        struct phy_info         *curphy;
1196#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
1197        ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
1198#endif
1199
1200        uec = (uec_private_t *)dev->priv;
1201
1202        if (uec->the_first_run == 0) {
1203#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
1204        /* QE9 and QE12 need to be set for enabling QE MII managment signals */
1205        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
1206        setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
1207#endif
1208
1209                err = init_phy(dev);
1210                if (err) {
1211                        printf("%s: Cannot initialize PHY, aborting.\n",
1212                               dev->name);
1213                        return err;
1214                }
1215
1216                curphy = uec->mii_info->phyinfo;
1217
1218                if (curphy->config_aneg) {
1219                        err = curphy->config_aneg(uec->mii_info);
1220                        if (err) {
1221                                printf("%s: Can't negotiate PHY\n", dev->name);
1222                                return err;
1223                        }
1224                }
1225
1226                /* Give PHYs up to 5 sec to report a link */
1227                i = 50;
1228                do {
1229                        err = curphy->read_status(uec->mii_info);
1230                        if (!(((i-- > 0) && !uec->mii_info->link) || err))
1231                                break;
1232                        udelay(100000);
1233                } while (1);
1234
1235#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
1236                /* QE12 needs to be released for enabling LBCTL signal*/
1237                clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
1238#endif
1239
1240                if (err || i <= 0)
1241                        printf("warning: %s: timeout on PHY link\n", dev->name);
1242
1243                adjust_link(dev);
1244                uec->the_first_run = 1;
1245        }
1246
1247        /* Set up the MAC address */
1248        if (dev->enetaddr[0] & 0x01) {
1249                printf("%s: MacAddress is multcast address\n",
1250                         __FUNCTION__);
1251                return -1;
1252        }
1253        uec_set_mac_address(uec, dev->enetaddr);
1254
1255
1256        err = uec_open(uec, COMM_DIR_RX_AND_TX);
1257        if (err) {
1258                printf("%s: cannot enable UEC device\n", dev->name);
1259                return -1;
1260        }
1261
1262        phy_change(dev);
1263
1264        return (uec->mii_info->link ? 0 : -1);
1265}
1266
1267static void uec_halt(struct eth_device* dev)
1268{
1269        uec_private_t   *uec = (uec_private_t *)dev->priv;
1270        uec_stop(uec, COMM_DIR_RX_AND_TX);
1271}
1272
1273static int uec_send(struct eth_device *dev, void *buf, int len)
1274{
1275        uec_private_t           *uec;
1276        ucc_fast_private_t      *uccf;
1277        volatile qe_bd_t        *bd;
1278        u16                     status;
1279        int                     i;
1280        int                     result = 0;
1281
1282        uec = (uec_private_t *)dev->priv;
1283        uccf = uec->uccf;
1284        bd = uec->txBd;
1285
1286        /* Find an empty TxBD */
1287        for (i = 0; bd->status & TxBD_READY; i++) {
1288                if (i > 0x100000) {
1289                        printf("%s: tx buffer not ready\n", dev->name);
1290                        return result;
1291                }
1292        }
1293
1294        /* Init TxBD */
1295        BD_DATA_SET(bd, buf);
1296        BD_LENGTH_SET(bd, len);
1297        status = bd->status;
1298        status &= BD_WRAP;
1299        status |= (TxBD_READY | TxBD_LAST);
1300        BD_STATUS_SET(bd, status);
1301
1302        /* Tell UCC to transmit the buffer */
1303        ucc_fast_transmit_on_demand(uccf);
1304
1305        /* Wait for buffer to be transmitted */
1306        for (i = 0; bd->status & TxBD_READY; i++) {
1307                if (i > 0x100000) {
1308                        printf("%s: tx error\n", dev->name);
1309                        return result;
1310                }
1311        }
1312
1313        /* Ok, the buffer be transimitted */
1314        BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
1315        uec->txBd = bd;
1316        result = 1;
1317
1318        return result;
1319}
1320
1321static int uec_recv(struct eth_device* dev)
1322{
1323        uec_private_t           *uec = dev->priv;
1324        volatile qe_bd_t        *bd;
1325        u16                     status;
1326        u16                     len;
1327        u8                      *data;
1328
1329        bd = uec->rxBd;
1330        status = bd->status;
1331
1332        while (!(status & RxBD_EMPTY)) {
1333                if (!(status & RxBD_ERROR)) {
1334                        data = BD_DATA(bd);
1335                        len = BD_LENGTH(bd);
1336                        net_process_received_packet(data, len);
1337                } else {
1338                        printf("%s: Rx error\n", dev->name);
1339                }
1340                status &= BD_CLEAN;
1341                BD_LENGTH_SET(bd, 0);
1342                BD_STATUS_SET(bd, status | RxBD_EMPTY);
1343                BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
1344                status = bd->status;
1345        }
1346        uec->rxBd = bd;
1347
1348        return 1;
1349}
1350
1351int uec_initialize(bd_t *bis, uec_info_t *uec_info)
1352{
1353        struct eth_device       *dev;
1354        int                     i;
1355        uec_private_t           *uec;
1356        int                     err;
1357
1358        dev = (struct eth_device *)malloc(sizeof(struct eth_device));
1359        if (!dev)
1360                return 0;
1361        memset(dev, 0, sizeof(struct eth_device));
1362
1363        /* Allocate the UEC private struct */
1364        uec = (uec_private_t *)malloc(sizeof(uec_private_t));
1365        if (!uec) {
1366                return -ENOMEM;
1367        }
1368        memset(uec, 0, sizeof(uec_private_t));
1369
1370        /* Adjust uec_info */
1371#if (MAX_QE_RISC == 4)
1372        uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
1373        uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
1374#endif
1375
1376        devlist[uec_info->uf_info.ucc_num] = dev;
1377
1378        uec->uec_info = uec_info;
1379        uec->dev = dev;
1380
1381        sprintf(dev->name, "UEC%d", uec_info->uf_info.ucc_num);
1382        dev->iobase = 0;
1383        dev->priv = (void *)uec;
1384        dev->init = uec_init;
1385        dev->halt = uec_halt;
1386        dev->send = uec_send;
1387        dev->recv = uec_recv;
1388
1389        /* Clear the ethnet address */
1390        for (i = 0; i < 6; i++)
1391                dev->enetaddr[i] = 0;
1392
1393        eth_register(dev);
1394
1395        err = uec_startup(uec);
1396        if (err) {
1397                printf("%s: Cannot configure net device, aborting.",dev->name);
1398                return err;
1399        }
1400
1401#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
1402        int retval;
1403        struct mii_dev *mdiodev = mdio_alloc();
1404        if (!mdiodev)
1405                return -ENOMEM;
1406        strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
1407        mdiodev->read = uec_miiphy_read;
1408        mdiodev->write = uec_miiphy_write;
1409
1410        retval = mdio_register(mdiodev);
1411        if (retval < 0)
1412                return retval;
1413#endif
1414
1415        return 1;
1416}
1417
1418int uec_eth_init(bd_t *bis, uec_info_t *uecs, int num)
1419{
1420        int i;
1421
1422        for (i = 0; i < num; i++)
1423                uec_initialize(bis, &uecs[i]);
1424
1425        return 0;
1426}
1427
1428int uec_standard_init(bd_t *bis)
1429{
1430        return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
1431}
1432