drivers/qe/uec.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
   4  *
   5  * Dave Liu <[email protected]>
   6  */
   7
   8 #include <common.h>
   9 #include <log.h>
  10 #include <net.h>
  11 #include <malloc.h>
  12 #include <linux/delay.h>
  13 #include <linux/errno.h>
  14 #include <asm/io.h>
  15 #include <linux/immap_qe.h>
  16 #include "uccf.h"
  17 #include "uec.h"
  18 #include "uec_phy.h"
  19 #include "miiphy.h"
  20 #include <fsl_qe.h>
  21 #include <phy.h>
  22
  23 /* Default UTBIPAR SMI address */
  24 #ifndef CONFIG_UTBIPAR_INIT_TBIPA
  25 #define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
  26 #endif
  27
  28 static uec_info_t uec_info[] = {
  29 #ifdef CONFIG_UEC_ETH1
  30         STD_UEC_INFO(1),        /* UEC1 */
  31 #endif
  32 #ifdef CONFIG_UEC_ETH2
  33         STD_UEC_INFO(2),        /* UEC2 */
  34 #endif
  35 #ifdef CONFIG_UEC_ETH3
  36         STD_UEC_INFO(3),        /* UEC3 */
  37 #endif
  38 #ifdef CONFIG_UEC_ETH4
  39         STD_UEC_INFO(4),        /* UEC4 */
  40 #endif
  41 #ifdef CONFIG_UEC_ETH5
  42         STD_UEC_INFO(5),        /* UEC5 */
  43 #endif
  44 #ifdef CONFIG_UEC_ETH6
  45         STD_UEC_INFO(6),        /* UEC6 */
  46 #endif
  47 #ifdef CONFIG_UEC_ETH7
  48         STD_UEC_INFO(7),        /* UEC7 */
  49 #endif
  50 #ifdef CONFIG_UEC_ETH8
  51         STD_UEC_INFO(8),        /* UEC8 */
  52 #endif
  53 };
  54
  55 #define MAXCONTROLLERS  (8)
  56
  57 static struct eth_device *devlist[MAXCONTROLLERS];
  58
  59 static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  60 {
  61         uec_t           *uec_regs;
  62         u32             maccfg1;
  63
  64         if (!uec) {
  65                 printf("%s: uec not initial\n", __FUNCTION__);
  66                 return -EINVAL;
  67         }
  68         uec_regs = uec->uec_regs;
  69
  70         maccfg1 = in_be32(&uec_regs->maccfg1);
  71
  72         if (mode & COMM_DIR_TX) {
  73                 maccfg1 |= MACCFG1_ENABLE_TX;
  74                 out_be32(&uec_regs->maccfg1, maccfg1);
  75                 uec->mac_tx_enabled = 1;
  76         }
  77
  78         if (mode & COMM_DIR_RX) {
  79                 maccfg1 |= MACCFG1_ENABLE_RX;
  80                 out_be32(&uec_regs->maccfg1, maccfg1);
  81                 uec->mac_rx_enabled = 1;
  82         }
  83
  84         return 0;
  85 }
  86
  87 static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
  88 {
  89         uec_t           *uec_regs;
  90         u32             maccfg1;
  91
  92         if (!uec) {
  93                 printf("%s: uec not initial\n", __FUNCTION__);
  94                 return -EINVAL;
  95         }
  96         uec_regs = uec->uec_regs;
  97
  98         maccfg1 = in_be32(&uec_regs->maccfg1);
  99
 100         if (mode & COMM_DIR_TX) {
 101                 maccfg1 &= ~MACCFG1_ENABLE_TX;
 102                 out_be32(&uec_regs->maccfg1, maccfg1);
 103                 uec->mac_tx_enabled = 0;
 104         }
 105
 106         if (mode & COMM_DIR_RX) {
 107                 maccfg1 &= ~MACCFG1_ENABLE_RX;
 108                 out_be32(&uec_regs->maccfg1, maccfg1);
 109                 uec->mac_rx_enabled = 0;
 110         }
 111
 112         return 0;
 113 }
 114
 115 static int uec_graceful_stop_tx(uec_private_t *uec)
 116 {
 117         ucc_fast_t              *uf_regs;
 118         u32                     cecr_subblock;
 119         u32                     ucce;
 120
 121         if (!uec || !uec->uccf) {
 122                 printf("%s: No handle passed.\n", __FUNCTION__);
 123                 return -EINVAL;
 124         }
 125
 126         uf_regs = uec->uccf->uf_regs;
 127
 128         /* Clear the grace stop event */
 129         out_be32(&uf_regs->ucce, UCCE_GRA);
 130
 131         /* Issue host command */
 132         cecr_subblock =
 133                  ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 134         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
 135                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 136
 137         /* Wait for command to complete */
 138         do {
 139                 ucce = in_be32(&uf_regs->ucce);
 140         } while (! (ucce & UCCE_GRA));
 141
 142         uec->grace_stopped_tx = 1;
 143
 144         return 0;
 145 }
 146
 147 static int uec_graceful_stop_rx(uec_private_t *uec)
 148 {
 149         u32             cecr_subblock;
 150         u8              ack;
 151
 152         if (!uec) {
 153                 printf("%s: No handle passed.\n", __FUNCTION__);
 154                 return -EINVAL;
 155         }
 156
 157         if (!uec->p_rx_glbl_pram) {
 158                 printf("%s: No init rx global parameter\n", __FUNCTION__);
 159                 return -EINVAL;
 160         }
 161
 162         /* Clear acknowledge bit */
 163         ack = uec->p_rx_glbl_pram->rxgstpack;
 164         ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
 165         uec->p_rx_glbl_pram->rxgstpack = ack;
 166
 167         /* Keep issuing cmd and checking ack bit until it is asserted */
 168         do {
 169                 /* Issue host command */
 170                 cecr_subblock =
 171                  ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 172                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
 173                                  (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 174                 ack = uec->p_rx_glbl_pram->rxgstpack;
 175         } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
 176
 177         uec->grace_stopped_rx = 1;
 178
 179         return 0;
 180 }
 181
 182 static int uec_restart_tx(uec_private_t *uec)
 183 {
 184         u32             cecr_subblock;
 185
 186         if (!uec || !uec->uec_info) {
 187                 printf("%s: No handle passed.\n", __FUNCTION__);
 188                 return -EINVAL;
 189         }
 190
 191         cecr_subblock =
 192          ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 193         qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
 194                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 195
 196         uec->grace_stopped_tx = 0;
 197
 198         return 0;
 199 }
 200
 201 static int uec_restart_rx(uec_private_t *uec)
 202 {
 203         u32             cecr_subblock;
 204
 205         if (!uec || !uec->uec_info) {
 206                 printf("%s: No handle passed.\n", __FUNCTION__);
 207                 return -EINVAL;
 208         }
 209
 210         cecr_subblock =
 211          ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 212         qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
 213                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 214
 215         uec->grace_stopped_rx = 0;
 216
 217         return 0;
 218 }
 219
 220 static int uec_open(uec_private_t *uec, comm_dir_e mode)
 221 {
 222         ucc_fast_private_t      *uccf;
 223
 224         if (!uec || !uec->uccf) {
 225                 printf("%s: No handle passed.\n", __FUNCTION__);
 226                 return -EINVAL;
 227         }
 228         uccf = uec->uccf;
 229
 230         /* check if the UCC number is in range. */
 231         if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 232                 printf("%s: ucc_num out of range.\n", __FUNCTION__);
 233                 return -EINVAL;
 234         }
 235
 236         /* Enable MAC */
 237         uec_mac_enable(uec, mode);
 238
 239         /* Enable UCC fast */
 240         ucc_fast_enable(uccf, mode);
 241
 242         /* RISC microcode start */
 243         if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
 244                 uec_restart_tx(uec);
 245         }
 246         if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
 247                 uec_restart_rx(uec);
 248         }
 249
 250         return 0;
 251 }
 252
 253 static int uec_stop(uec_private_t *uec, comm_dir_e mode)
 254 {
 255         if (!uec || !uec->uccf) {
 256                 printf("%s: No handle passed.\n", __FUNCTION__);
 257                 return -EINVAL;
 258         }
 259
 260         /* check if the UCC number is in range. */
 261         if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 262                 printf("%s: ucc_num out of range.\n", __FUNCTION__);
 263                 return -EINVAL;
 264         }
 265         /* Stop any transmissions */
 266         if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
 267                 uec_graceful_stop_tx(uec);
 268         }
 269         /* Stop any receptions */
 270         if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
 271                 uec_graceful_stop_rx(uec);
 272         }
 273
 274         /* Disable the UCC fast */
 275         ucc_fast_disable(uec->uccf, mode);
 276
 277         /* Disable the MAC */
 278         uec_mac_disable(uec, mode);
 279
 280         return 0;
 281 }
 282
 283 static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
 284 {
 285         uec_t           *uec_regs;
 286         u32             maccfg2;
 287
 288         if (!uec) {
 289                 printf("%s: uec not initial\n", __FUNCTION__);
 290                 return -EINVAL;
 291         }
 292         uec_regs = uec->uec_regs;
 293
 294         if (duplex == DUPLEX_HALF) {
 295                 maccfg2 = in_be32(&uec_regs->maccfg2);
 296                 maccfg2 &= ~MACCFG2_FDX;
 297                 out_be32(&uec_regs->maccfg2, maccfg2);
 298         }
 299
 300         if (duplex == DUPLEX_FULL) {
 301                 maccfg2 = in_be32(&uec_regs->maccfg2);
 302                 maccfg2 |= MACCFG2_FDX;
 303                 out_be32(&uec_regs->maccfg2, maccfg2);
 304         }
 305
 306         return 0;
 307 }
 308
 309 static int uec_set_mac_if_mode(uec_private_t *uec,
 310                 phy_interface_t if_mode, int speed)
 311 {
 312         phy_interface_t         enet_if_mode;
 313         uec_t                   *uec_regs;
 314         u32                     upsmr;
 315         u32                     maccfg2;
 316
 317         if (!uec) {
 318                 printf("%s: uec not initial\n", __FUNCTION__);
 319                 return -EINVAL;
 320         }
 321
 322         uec_regs = uec->uec_regs;
 323         enet_if_mode = if_mode;
 324
 325         maccfg2 = in_be32(&uec_regs->maccfg2);
 326         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
 327
 328         upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
 329         upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
 330
 331         switch (speed) {
 332                 case SPEED_10:
 333                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 334                         switch (enet_if_mode) {
 335                                 case PHY_INTERFACE_MODE_MII:
 336                                         break;
 337                                 case PHY_INTERFACE_MODE_RGMII:
 338                                         upsmr |= (UPSMR_RPM | UPSMR_R10M);
 339                                         break;
 340                                 case PHY_INTERFACE_MODE_RMII:
 341                                         upsmr |= (UPSMR_R10M | UPSMR_RMM);
 342                                         break;
 343                                 default:
 344                                         return -EINVAL;
 345                                         break;
 346                         }
 347                         break;
 348                 case SPEED_100:
 349                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 350                         switch (enet_if_mode) {
 351                                 case PHY_INTERFACE_MODE_MII:
 352                                         break;
 353                                 case PHY_INTERFACE_MODE_RGMII:
 354                                         upsmr |= UPSMR_RPM;
 355                                         break;
 356                                 case PHY_INTERFACE_MODE_RMII:
 357                                         upsmr |= UPSMR_RMM;
 358                                         break;
 359                                 default:
 360                                         return -EINVAL;
 361                                         break;
 362                         }
 363                         break;
 364                 case SPEED_1000:
 365                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 366                         switch (enet_if_mode) {
 367                                 case PHY_INTERFACE_MODE_GMII:
 368                                         break;
 369                                 case PHY_INTERFACE_MODE_TBI:
 370                                         upsmr |= UPSMR_TBIM;
 371                                         break;
 372                                 case PHY_INTERFACE_MODE_RTBI:
 373                                         upsmr |= (UPSMR_RPM | UPSMR_TBIM);
 374                                         break;
 375                                 case PHY_INTERFACE_MODE_RGMII_RXID:
 376                                 case PHY_INTERFACE_MODE_RGMII_TXID:
 377                                 case PHY_INTERFACE_MODE_RGMII_ID:
 378                                 case PHY_INTERFACE_MODE_RGMII:
 379                                         upsmr |= UPSMR_RPM;
 380                                         break;
 381                                 case PHY_INTERFACE_MODE_SGMII:
 382                                         upsmr |= UPSMR_SGMM;
 383                                         break;
 384                                 default:
 385                                         return -EINVAL;
 386                                         break;
 387                         }
 388                         break;
 389                 default:
 390                         return -EINVAL;
 391                         break;
 392         }
 393
 394         out_be32(&uec_regs->maccfg2, maccfg2);
 395         out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
 396
 397         return 0;
 398 }
 399
 400 static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
 401 {
 402         uint            timeout = 0x1000;
 403         u32             miimcfg = 0;
 404
 405         miimcfg = in_be32(&uec_mii_regs->miimcfg);
 406         miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
 407         out_be32(&uec_mii_regs->miimcfg, miimcfg);
 408
 409         /* Wait until the bus is free */
 410         while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
 411         if (timeout <= 0) {
 412                 printf("%s: The MII Bus is stuck!", __FUNCTION__);
 413                 return -ETIMEDOUT;
 414         }
 415
 416         return 0;
 417 }
 418
 419 static int init_phy(struct eth_device *dev)
 420 {
 421         uec_private_t           *uec;
 422         uec_mii_t               *umii_regs;
 423         struct uec_mii_info     *mii_info;
 424         struct phy_info         *curphy;
 425         int                     err;
 426
 427         uec = (uec_private_t *)dev->priv;
 428         umii_regs = uec->uec_mii_regs;
 429
 430         uec->oldlink = 0;
 431         uec->oldspeed = 0;
 432         uec->oldduplex = -1;
 433
 434         mii_info = malloc(sizeof(*mii_info));
 435         if (!mii_info) {
 436                 printf("%s: Could not allocate mii_info", dev->name);
 437                 return -ENOMEM;
 438         }
 439         memset(mii_info, 0, sizeof(*mii_info));
 440
 441         if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 442                 mii_info->speed = SPEED_1000;
 443         } else {
 444                 mii_info->speed = SPEED_100;
 445         }
 446
 447         mii_info->duplex = DUPLEX_FULL;
 448         mii_info->pause = 0;
 449         mii_info->link = 1;
 450
 451         mii_info->advertising = (ADVERTISED_10baseT_Half |
 452                                 ADVERTISED_10baseT_Full |
 453                                 ADVERTISED_100baseT_Half |
 454                                 ADVERTISED_100baseT_Full |
 455                                 ADVERTISED_1000baseT_Full);
 456         mii_info->autoneg = 1;
 457         mii_info->mii_id = uec->uec_info->phy_address;
 458         mii_info->dev = dev;
 459
 460         mii_info->mdio_read = &uec_read_phy_reg;
 461         mii_info->mdio_write = &uec_write_phy_reg;
 462
 463         uec->mii_info = mii_info;
 464
 465         qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
 466
 467         if (init_mii_management_configuration(umii_regs)) {
 468                 printf("%s: The MII Bus is stuck!", dev->name);
 469                 err = -1;
 470                 goto bus_fail;
 471         }
 472
 473         /* get info for this PHY */
 474         curphy = uec_get_phy_info(uec->mii_info);
 475         if (!curphy) {
 476                 printf("%s: No PHY found", dev->name);
 477                 err = -1;
 478                 goto no_phy;
 479         }
 480
 481         mii_info->phyinfo = curphy;
 482
 483         /* Run the commands which initialize the PHY */
 484         if (curphy->init) {
 485                 err = curphy->init(uec->mii_info);
 486                 if (err)
 487                         goto phy_init_fail;
 488         }
 489
 490         return 0;
 491
 492 phy_init_fail:
 493 no_phy:
 494 bus_fail:
 495         free(mii_info);
 496         return err;
 497 }
 498
 499 static void adjust_link(struct eth_device *dev)
 500 {
 501         uec_private_t           *uec = (uec_private_t *)dev->priv;
 502         struct uec_mii_info     *mii_info = uec->mii_info;
 503
 504         extern void change_phy_interface_mode(struct eth_device *dev,
 505                                  phy_interface_t mode, int speed);
 506
 507         if (mii_info->link) {
 508                 /* Now we make sure that we can be in full duplex mode.
 509                 * If not, we operate in half-duplex mode. */
 510                 if (mii_info->duplex != uec->oldduplex) {
 511                         if (!(mii_info->duplex)) {
 512                                 uec_set_mac_duplex(uec, DUPLEX_HALF);
 513                                 printf("%s: Half Duplex\n", dev->name);
 514                         } else {
 515                                 uec_set_mac_duplex(uec, DUPLEX_FULL);
 516                                 printf("%s: Full Duplex\n", dev->name);
 517                         }
 518                         uec->oldduplex = mii_info->duplex;
 519                 }
 520
 521                 if (mii_info->speed != uec->oldspeed) {
 522                         phy_interface_t mode =
 523                                 uec->uec_info->enet_interface_type;
 524                         if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 525                                 switch (mii_info->speed) {
 526                                 case SPEED_1000:
 527                                         break;
 528                                 case SPEED_100:
 529                                         printf ("switching to rgmii 100\n");
 530                                         mode = PHY_INTERFACE_MODE_RGMII;
 531                                         break;
 532                                 case SPEED_10:
 533                                         printf ("switching to rgmii 10\n");
 534                                         mode = PHY_INTERFACE_MODE_RGMII;
 535                                         break;
 536                                 default:
 537                                         printf("%s: Ack,Speed(%d)is illegal\n",
 538                                                 dev->name, mii_info->speed);
 539                                         break;
 540                                 }
 541                         }
 542
 543                         /* change phy */
 544                         change_phy_interface_mode(dev, mode, mii_info->speed);
 545                         /* change the MAC interface mode */
 546                         uec_set_mac_if_mode(uec, mode, mii_info->speed);
 547
 548                         printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
 549                         uec->oldspeed = mii_info->speed;
 550                 }
 551
 552                 if (!uec->oldlink) {
 553                         printf("%s: Link is up\n", dev->name);
 554                         uec->oldlink = 1;
 555                 }
 556
 557         } else { /* if (mii_info->link) */
 558                 if (uec->oldlink) {
 559                         printf("%s: Link is down\n", dev->name);
 560                         uec->oldlink = 0;
 561                         uec->oldspeed = 0;
 562                         uec->oldduplex = -1;
 563                 }
 564         }
 565 }
 566
 567 static void phy_change(struct eth_device *dev)
 568 {
 569         uec_private_t   *uec = (uec_private_t *)dev->priv;
 570
 571 #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
 572         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 573
 574         /* QE9 and QE12 need to be set for enabling QE MII managment signals */
 575         setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
 576         setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
 577 #endif
 578
 579         /* Update the link, speed, duplex */
 580         uec->mii_info->phyinfo->read_status(uec->mii_info);
 581
 582 #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
 583         /*
 584          * QE12 is muxed with LBCTL, it needs to be released for enabling
 585          * LBCTL signal for LBC usage.
 586          */
 587         clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
 588 #endif
 589
 590         /* Adjust the interface according to speed */
 591         adjust_link(dev);
 592 }
 593
 594 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 595
 596 /*
 597  * Find a device index from the devlist by name
 598  *
 599  * Returns:
 600  *  The index where the device is located, -1 on error
 601  */
 602 static int uec_miiphy_find_dev_by_name(const char *devname)
 603 {
 604         int i;
 605
 606         for (i = 0; i < MAXCONTROLLERS; i++) {
 607                 if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
 608                         break;
 609                 }
 610         }
 611
 612         /* If device cannot be found, returns -1 */
 613         if (i == MAXCONTROLLERS) {
 614                 debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
 615                 i = -1;
 616         }
 617
 618         return i;
 619 }
 620
 621 /*
 622  * Read a MII PHY register.
 623  *
 624  * Returns:
 625  *  0 on success
 626  */
 627 static int uec_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg)
 628 {
 629         unsigned short value = 0;
 630         int devindex = 0;
 631
 632         if (bus->name == NULL) {
 633                 debug("%s: NULL pointer given\n", __FUNCTION__);
 634         } else {
 635                 devindex = uec_miiphy_find_dev_by_name(bus->name);
 636                 if (devindex >= 0) {
 637                         value = uec_read_phy_reg(devlist[devindex], addr, reg);
 638                 }
 639         }
 640         return value;
 641 }
 642
 643 /*
 644  * Write a MII PHY register.
 645  *
 646  * Returns:
 647  *  0 on success
 648  */
 649 static int uec_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
 650                             u16 value)
 651 {
 652         int devindex = 0;
 653
 654         if (bus->name == NULL) {
 655                 debug("%s: NULL pointer given\n", __FUNCTION__);
 656         } else {
 657                 devindex = uec_miiphy_find_dev_by_name(bus->name);
 658                 if (devindex >= 0) {
 659                         uec_write_phy_reg(devlist[devindex], addr, reg, value);
 660                 }
 661         }
 662         return 0;
 663 }
 664 #endif
 665
 666 static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
 667 {
 668         uec_t           *uec_regs;
 669         u32             mac_addr1;
 670         u32             mac_addr2;
 671
 672         if (!uec) {
 673                 printf("%s: uec not initial\n", __FUNCTION__);
 674                 return -EINVAL;
 675         }
 676
 677         uec_regs = uec->uec_regs;
 678
 679         /* if a station address of 0x12345678ABCD, perform a write to
 680         MACSTNADDR1 of 0xCDAB7856,
 681         MACSTNADDR2 of 0x34120000 */
 682
 683         mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
 684                         (mac_addr[3] << 8)  | (mac_addr[2]);
 685         out_be32(&uec_regs->macstnaddr1, mac_addr1);
 686
 687         mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
 688         out_be32(&uec_regs->macstnaddr2, mac_addr2);
 689
 690         return 0;
 691 }
 692
 693 static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
 694                                          int *threads_num_ret)
 695 {
 696         int     num_threads_numerica;
 697
 698         switch (threads_num) {
 699                 case UEC_NUM_OF_THREADS_1:
 700                         num_threads_numerica = 1;
 701                         break;
 702                 case UEC_NUM_OF_THREADS_2:
 703                         num_threads_numerica = 2;
 704                         break;
 705                 case UEC_NUM_OF_THREADS_4:
 706                         num_threads_numerica = 4;
 707                         break;
 708                 case UEC_NUM_OF_THREADS_6:
 709                         num_threads_numerica = 6;
 710                         break;
 711                 case UEC_NUM_OF_THREADS_8:
 712                         num_threads_numerica = 8;
 713                         break;
 714                 default:
 715                         printf("%s: Bad number of threads value.",
 716                                  __FUNCTION__);
 717                         return -EINVAL;
 718         }
 719
 720         *threads_num_ret = num_threads_numerica;
 721
 722         return 0;
 723 }
 724
 725 static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
 726 {
 727         uec_info_t      *uec_info;
 728         u32             end_bd;
 729         u8              bmrx = 0;
 730         int             i;
 731
 732         uec_info = uec->uec_info;
 733
 734         /* Alloc global Tx parameter RAM page */
 735         uec->tx_glbl_pram_offset = qe_muram_alloc(
 736                                 sizeof(uec_tx_global_pram_t),
 737                                  UEC_TX_GLOBAL_PRAM_ALIGNMENT);
 738         uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
 739                                 qe_muram_addr(uec->tx_glbl_pram_offset);
 740
 741         /* Zero the global Tx prameter RAM */
 742         memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
 743
 744         /* Init global Tx parameter RAM */
 745
 746         /* TEMODER, RMON statistics disable, one Tx queue */
 747         out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
 748
 749         /* SQPTR */
 750         uec->send_q_mem_reg_offset = qe_muram_alloc(
 751                                 sizeof(uec_send_queue_qd_t),
 752                                  UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
 753         uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
 754                                 qe_muram_addr(uec->send_q_mem_reg_offset);
 755         out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
 756
 757         /* Setup the table with TxBDs ring */
 758         end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
 759                                          * SIZEOFBD;
 760         out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
 761                                  (u32)(uec->p_tx_bd_ring));
 762         out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
 763                                                  end_bd);
 764
 765         /* Scheduler Base Pointer, we have only one Tx queue, no need it */
 766         out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
 767
 768         /* TxRMON Base Pointer, TxRMON disable, we don't need it */
 769         out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
 770
 771         /* TSTATE, global snooping, big endian, the CSB bus selected */
 772         bmrx = BMR_INIT_VALUE;
 773         out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
 774
 775         /* IPH_Offset */
 776         for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
 777                 out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
 778         }
 779
 780         /* VTAG table */
 781         for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
 782                 out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
 783         }
 784
 785         /* TQPTR */
 786         uec->thread_dat_tx_offset = qe_muram_alloc(
 787                 num_threads_tx * sizeof(uec_thread_data_tx_t) +
 788                  32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
 789
 790         uec->p_thread_data_tx = (uec_thread_data_tx_t *)
 791                                 qe_muram_addr(uec->thread_dat_tx_offset);
 792         out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
 793 }
 794
 795 static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
 796 {
 797         u8      bmrx = 0;
 798         int     i;
 799         uec_82xx_address_filtering_pram_t       *p_af_pram;
 800
 801         /* Allocate global Rx parameter RAM page */
 802         uec->rx_glbl_pram_offset = qe_muram_alloc(
 803                 sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
 804         uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
 805                                 qe_muram_addr(uec->rx_glbl_pram_offset);
 806
 807         /* Zero Global Rx parameter RAM */
 808         memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
 809
 810         /* Init global Rx parameter RAM */
 811         /* REMODER, Extended feature mode disable, VLAN disable,
 812          LossLess flow control disable, Receive firmware statisic disable,
 813          Extended address parsing mode disable, One Rx queues,
 814          Dynamic maximum/minimum frame length disable, IP checksum check
 815          disable, IP address alignment disable
 816         */
 817         out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
 818
 819         /* RQPTR */
 820         uec->thread_dat_rx_offset = qe_muram_alloc(
 821                         num_threads_rx * sizeof(uec_thread_data_rx_t),
 822                          UEC_THREAD_DATA_ALIGNMENT);
 823         uec->p_thread_data_rx = (uec_thread_data_rx_t *)
 824                                 qe_muram_addr(uec->thread_dat_rx_offset);
 825         out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
 826
 827         /* Type_or_Len */
 828         out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
 829
 830         /* RxRMON base pointer, we don't need it */
 831         out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
 832
 833         /* IntCoalescingPTR, we don't need it, no interrupt */
 834         out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
 835
 836         /* RSTATE, global snooping, big endian, the CSB bus selected */
 837         bmrx = BMR_INIT_VALUE;
 838         out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
 839
 840         /* MRBLR */
 841         out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
 842
 843         /* RBDQPTR */
 844         uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
 845                                 sizeof(uec_rx_bd_queues_entry_t) + \
 846                                 sizeof(uec_rx_prefetched_bds_t),
 847                                  UEC_RX_BD_QUEUES_ALIGNMENT);
 848         uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
 849                                 qe_muram_addr(uec->rx_bd_qs_tbl_offset);
 850
 851         /* Zero it */
 852         memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
 853                                         sizeof(uec_rx_prefetched_bds_t));
 854         out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
 855         out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
 856                  (u32)uec->p_rx_bd_ring);
 857
 858         /* MFLR */
 859         out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
 860         /* MINFLR */
 861         out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
 862         /* MAXD1 */
 863         out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
 864         /* MAXD2 */
 865         out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
 866         /* ECAM_PTR */
 867         out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
 868         /* L2QT */
 869         out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
 870         /* L3QT */
 871         for (i = 0; i < 8; i++) {
 872                 out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
 873         }
 874
 875         /* VLAN_TYPE */
 876         out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
 877         /* TCI */
 878         out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
 879
 880         /* Clear PQ2 style address filtering hash table */
 881         p_af_pram = (uec_82xx_address_filtering_pram_t *) \
 882                         uec->p_rx_glbl_pram->addressfiltering;
 883
 884         p_af_pram->iaddr_h = 0;
 885         p_af_pram->iaddr_l = 0;
 886         p_af_pram->gaddr_h = 0;
 887         p_af_pram->gaddr_l = 0;
 888 }
 889
 890 static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
 891                                          int thread_tx, int thread_rx)
 892 {
 893         uec_init_cmd_pram_t             *p_init_enet_param;
 894         u32                             init_enet_param_offset;
 895         uec_info_t                      *uec_info;
 896         int                             i;
 897         int                             snum;
 898         u32                             init_enet_offset;
 899         u32                             entry_val;
 900         u32                             command;
 901         u32                             cecr_subblock;
 902
 903         uec_info = uec->uec_info;
 904
 905         /* Allocate init enet command parameter */
 906         uec->init_enet_param_offset = qe_muram_alloc(
 907                                         sizeof(uec_init_cmd_pram_t), 4);
 908         init_enet_param_offset = uec->init_enet_param_offset;
 909         uec->p_init_enet_param = (uec_init_cmd_pram_t *)
 910                                 qe_muram_addr(uec->init_enet_param_offset);
 911
 912         /* Zero init enet command struct */
 913         memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
 914
 915         /* Init the command struct */
 916         p_init_enet_param = uec->p_init_enet_param;
 917         p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
 918         p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
 919         p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
 920         p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
 921         p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
 922         p_init_enet_param->largestexternallookupkeysize = 0;
 923
 924         p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
 925                                          << ENET_INIT_PARAM_RGF_SHIFT;
 926         p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
 927                                          << ENET_INIT_PARAM_TGF_SHIFT;
 928
 929         /* Init Rx global parameter pointer */
 930         p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
 931                                                  (u32)uec_info->risc_rx;
 932
 933         /* Init Rx threads */
 934         for (i = 0; i < (thread_rx + 1); i++) {
 935                 if ((snum = qe_get_snum()) < 0) {
 936                         printf("%s can not get snum\n", __FUNCTION__);
 937                         return -ENOMEM;
 938                 }
 939
 940                 if (i==0) {
 941                         init_enet_offset = 0;
 942                 } else {
 943                         init_enet_offset = qe_muram_alloc(
 944                                         sizeof(uec_thread_rx_pram_t),
 945                                          UEC_THREAD_RX_PRAM_ALIGNMENT);
 946                 }
 947
 948                 entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 949                                  init_enet_offset | (u32)uec_info->risc_rx;
 950                 p_init_enet_param->rxthread[i] = entry_val;
 951         }
 952
 953         /* Init Tx global parameter pointer */
 954         p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
 955                                          (u32)uec_info->risc_tx;
 956
 957         /* Init Tx threads */
 958         for (i = 0; i < thread_tx; i++) {
 959                 if ((snum = qe_get_snum()) < 0) {
 960                         printf("%s can not get snum\n", __FUNCTION__);
 961                         return -ENOMEM;
 962                 }
 963
 964                 init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
 965                                                  UEC_THREAD_TX_PRAM_ALIGNMENT);
 966
 967                 entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 968                                  init_enet_offset | (u32)uec_info->risc_tx;
 969                 p_init_enet_param->txthread[i] = entry_val;
 970         }
 971
 972         __asm__ __volatile__("sync");
 973
 974         /* Issue QE command */
 975         command = QE_INIT_TX_RX;
 976         cecr_subblock = ucc_fast_get_qe_cr_subblock(
 977                                 uec->uec_info->uf_info.ucc_num);
 978         qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
 979                                                  init_enet_param_offset);
 980
 981         return 0;
 982 }
 983
 984 static int uec_startup(uec_private_t *uec)
 985 {
 986         uec_info_t                      *uec_info;
 987         ucc_fast_info_t                 *uf_info;
 988         ucc_fast_private_t              *uccf;
 989         ucc_fast_t                      *uf_regs;
 990         uec_t                           *uec_regs;
 991         int                             num_threads_tx;
 992         int                             num_threads_rx;
 993         u32                             utbipar;
 994         u32                             length;
 995         u32                             align;
 996         qe_bd_t                         *bd;
 997         u8                              *buf;
 998         int                             i;
 999
1000         if (!uec || !uec->uec_info) {
1001                 printf("%s: uec or uec_info not initial\n", __FUNCTION__);
1002                 return -EINVAL;
1003         }
1004
1005         uec_info = uec->uec_info;
1006         uf_info = &(uec_info->uf_info);
1007
1008         /* Check if Rx BD ring len is illegal */
1009         if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
1010                 (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
1011                 printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
1012                          __FUNCTION__);
1013                 return -EINVAL;
1014         }
1015
1016         /* Check if Tx BD ring len is illegal */
1017         if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
1018                 printf("%s: Tx BD ring length must not be smaller than 2.\n",
1019                          __FUNCTION__);
1020                 return -EINVAL;
1021         }
1022
1023         /* Check if MRBLR is illegal */
1024         if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN  % UEC_MRBLR_ALIGNMENT)) {
1025                 printf("%s: max rx buffer length must be mutliple of 128.\n",
1026                          __FUNCTION__);
1027                 return -EINVAL;
1028         }
1029
1030         /* Both Rx and Tx are stopped */
1031         uec->grace_stopped_rx = 1;
1032         uec->grace_stopped_tx = 1;
1033
1034         /* Init UCC fast */
1035         if (ucc_fast_init(uf_info, &uccf)) {
1036                 printf("%s: failed to init ucc fast\n", __FUNCTION__);
1037                 return -ENOMEM;
1038         }
1039
1040         /* Save uccf */
1041         uec->uccf = uccf;
1042
1043         /* Convert the Tx threads number */
1044         if (uec_convert_threads_num(uec_info->num_threads_tx,
1045                                          &num_threads_tx)) {
1046                 return -EINVAL;
1047         }
1048
1049         /* Convert the Rx threads number */
1050         if (uec_convert_threads_num(uec_info->num_threads_rx,
1051                                          &num_threads_rx)) {
1052                 return -EINVAL;
1053         }
1054
1055         uf_regs = uccf->uf_regs;
1056
1057         /* UEC register is following UCC fast registers */
1058         uec_regs = (uec_t *)(&uf_regs->ucc_eth);
1059
1060         /* Save the UEC register pointer to UEC private struct */
1061         uec->uec_regs = uec_regs;
1062
1063         /* Init UPSMR, enable hardware statistics (UCC) */
1064         out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
1065
1066         /* Init MACCFG1, flow control disable, disable Tx and Rx */
1067         out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
1068
1069         /* Init MACCFG2, length check, MAC PAD and CRC enable */
1070         out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
1071
1072         /* Setup MAC interface mode */
1073         uec_set_mac_if_mode(uec, uec_info->enet_interface_type, uec_info->speed);
1074
1075         /* Setup MII management base */
1076 #ifndef CONFIG_eTSEC_MDIO_BUS
1077         uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
1078 #else
1079         uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
1080 #endif
1081
1082         /* Setup MII master clock source */
1083         qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
1084
1085         /* Setup UTBIPAR */
1086         utbipar = in_be32(&uec_regs->utbipar);
1087         utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1088
1089         /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC.
1090          * This frees up the remaining SMI addresses for use.
1091          */
1092         utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << UTBIPAR_PHY_ADDRESS_SHIFT;
1093         out_be32(&uec_regs->utbipar, utbipar);
1094
1095         /* Configure the TBI for SGMII operation */
1096         if ((uec->uec_info->enet_interface_type == PHY_INTERFACE_MODE_SGMII) &&
1097            (uec->uec_info->speed == SPEED_1000)) {
1098                 uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1099                         ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1100
1101                 uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1102                         ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1103
1104                 uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1105                         ENET_TBI_MII_CR, TBICR_SETTINGS);
1106         }
1107
1108         /* Allocate Tx BDs */
1109         length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
1110                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
1111                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1112         if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
1113                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
1114                 length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1115         }
1116
1117         align = UEC_TX_BD_RING_ALIGNMENT;
1118         uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
1119         if (uec->tx_bd_ring_offset != 0) {
1120                 uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
1121                                                  & ~(align - 1));
1122         }
1123
1124         /* Zero all of Tx BDs */
1125         memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
1126
1127         /* Allocate Rx BDs */
1128         length = uec_info->rx_bd_ring_len * SIZEOFBD;
1129         align = UEC_RX_BD_RING_ALIGNMENT;
1130         uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
1131         if (uec->rx_bd_ring_offset != 0) {
1132                 uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
1133                                                          & ~(align - 1));
1134         }
1135
1136         /* Zero all of Rx BDs */
1137         memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
1138
1139         /* Allocate Rx buffer */
1140         length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
1141         align = UEC_RX_DATA_BUF_ALIGNMENT;
1142         uec->rx_buf_offset = (u32)malloc(length + align);
1143         if (uec->rx_buf_offset != 0) {
1144                 uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
1145                                                  & ~(align - 1));
1146         }
1147
1148         /* Zero all of the Rx buffer */
1149         memset((void *)(uec->rx_buf_offset), 0, length + align);
1150
1151         /* Init TxBD ring */
1152         bd = (qe_bd_t *)uec->p_tx_bd_ring;
1153         uec->txBd = bd;
1154
1155         for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
1156                 BD_DATA_CLEAR(bd);
1157                 BD_STATUS_SET(bd, 0);
1158                 BD_LENGTH_SET(bd, 0);
1159                 bd ++;
1160         }
1161         BD_STATUS_SET((--bd), TxBD_WRAP);
1162
1163         /* Init RxBD ring */
1164         bd = (qe_bd_t *)uec->p_rx_bd_ring;
1165         uec->rxBd = bd;
1166         buf = uec->p_rx_buf;
1167         for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
1168                 BD_DATA_SET(bd, buf);
1169                 BD_LENGTH_SET(bd, 0);
1170                 BD_STATUS_SET(bd, RxBD_EMPTY);
1171                 buf += MAX_RXBUF_LEN;
1172                 bd ++;
1173         }
1174         BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
1175
1176         /* Init global Tx parameter RAM */
1177         uec_init_tx_parameter(uec, num_threads_tx);
1178
1179         /* Init global Rx parameter RAM */
1180         uec_init_rx_parameter(uec, num_threads_rx);
1181
1182         /* Init ethernet Tx and Rx parameter command */
1183         if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
1184                                          num_threads_rx)) {
1185                 printf("%s issue init enet cmd failed\n", __FUNCTION__);
1186                 return -ENOMEM;
1187         }
1188
1189         return 0;
1190 }
1191
1192 static int uec_init(struct eth_device* dev, struct bd_info *bd)
1193 {
1194         uec_private_t           *uec;
1195         int                     err, i;
1196         struct phy_info         *curphy;
1197 #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
1198         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
1199 #endif
1200
1201         uec = (uec_private_t *)dev->priv;
1202
1203         if (uec->the_first_run == 0) {
1204 #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
1205         /* QE9 and QE12 need to be set for enabling QE MII managment signals */
1206         setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
1207         setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
1208 #endif
1209
1210                 err = init_phy(dev);
1211                 if (err) {
1212                         printf("%s: Cannot initialize PHY, aborting.\n",
1213                                dev->name);
1214                         return err;
1215                 }
1216
1217                 curphy = uec->mii_info->phyinfo;
1218
1219                 if (curphy->config_aneg) {
1220                         err = curphy->config_aneg(uec->mii_info);
1221                         if (err) {
1222                                 printf("%s: Can't negotiate PHY\n", dev->name);
1223                                 return err;
1224                         }
1225                 }
1226
1227                 /* Give PHYs up to 5 sec to report a link */
1228                 i = 50;
1229                 do {
1230                         err = curphy->read_status(uec->mii_info);
1231                         if (!(((i-- > 0) && !uec->mii_info->link) || err))
1232                                 break;
1233                         udelay(100000);
1234                 } while (1);
1235
1236 #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
1237                 /* QE12 needs to be released for enabling LBCTL signal*/
1238                 clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
1239 #endif
1240
1241                 if (err || i <= 0)
1242                         printf("warning: %s: timeout on PHY link\n", dev->name);
1243
1244                 adjust_link(dev);
1245                 uec->the_first_run = 1;
1246         }
1247
1248         /* Set up the MAC address */
1249         if (dev->enetaddr[0] & 0x01) {
1250                 printf("%s: MacAddress is multcast address\n",
1251                          __FUNCTION__);
1252                 return -1;
1253         }
1254         uec_set_mac_address(uec, dev->enetaddr);
1255
1256
1257         err = uec_open(uec, COMM_DIR_RX_AND_TX);
1258         if (err) {
1259                 printf("%s: cannot enable UEC device\n", dev->name);
1260                 return -1;
1261         }
1262
1263         phy_change(dev);
1264
1265         return (uec->mii_info->link ? 0 : -1);
1266 }
1267
1268 static void uec_halt(struct eth_device* dev)
1269 {
1270         uec_private_t   *uec = (uec_private_t *)dev->priv;
1271         uec_stop(uec, COMM_DIR_RX_AND_TX);
1272 }
1273
1274 static int uec_send(struct eth_device *dev, void *buf, int len)
1275 {
1276         uec_private_t           *uec;
1277         ucc_fast_private_t      *uccf;
1278         volatile qe_bd_t        *bd;
1279         u16                     status;
1280         int                     i;
1281         int                     result = 0;
1282
1283         uec = (uec_private_t *)dev->priv;
1284         uccf = uec->uccf;
1285         bd = uec->txBd;
1286
1287         /* Find an empty TxBD */
1288         for (i = 0; bd->status & TxBD_READY; i++) {
1289                 if (i > 0x100000) {
1290                         printf("%s: tx buffer not ready\n", dev->name);
1291                         return result;
1292                 }
1293         }
1294
1295         /* Init TxBD */
1296         BD_DATA_SET(bd, buf);
1297         BD_LENGTH_SET(bd, len);
1298         status = bd->status;
1299         status &= BD_WRAP;
1300         status |= (TxBD_READY | TxBD_LAST);
1301         BD_STATUS_SET(bd, status);
1302
1303         /* Tell UCC to transmit the buffer */
1304         ucc_fast_transmit_on_demand(uccf);
1305
1306         /* Wait for buffer to be transmitted */
1307         for (i = 0; bd->status & TxBD_READY; i++) {
1308                 if (i > 0x100000) {
1309                         printf("%s: tx error\n", dev->name);
1310                         return result;
1311                 }
1312         }
1313
1314         /* Ok, the buffer be transimitted */
1315         BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
1316         uec->txBd = bd;
1317         result = 1;
1318
1319         return result;
1320 }
1321
1322 static int uec_recv(struct eth_device* dev)
1323 {
1324         uec_private_t           *uec = dev->priv;
1325         volatile qe_bd_t        *bd;
1326         u16                     status;
1327         u16                     len;
1328         u8                      *data;
1329
1330         bd = uec->rxBd;
1331         status = bd->status;
1332
1333         while (!(status & RxBD_EMPTY)) {
1334                 if (!(status & RxBD_ERROR)) {
1335                         data = BD_DATA(bd);
1336                         len = BD_LENGTH(bd);
1337                         net_process_received_packet(data, len);
1338                 } else {
1339                         printf("%s: Rx error\n", dev->name);
1340                 }
1341                 status &= BD_CLEAN;
1342                 BD_LENGTH_SET(bd, 0);
1343                 BD_STATUS_SET(bd, status | RxBD_EMPTY);
1344                 BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
1345                 status = bd->status;
1346         }
1347         uec->rxBd = bd;
1348
1349         return 1;
1350 }
1351
1352 int uec_initialize(struct bd_info *bis, uec_info_t *uec_info)
1353 {
1354         struct eth_device       *dev;
1355         int                     i;
1356         uec_private_t           *uec;
1357         int                     err;
1358
1359         dev = (struct eth_device *)malloc(sizeof(struct eth_device));
1360         if (!dev)
1361                 return 0;
1362         memset(dev, 0, sizeof(struct eth_device));
1363
1364         /* Allocate the UEC private struct */
1365         uec = (uec_private_t *)malloc(sizeof(uec_private_t));
1366         if (!uec) {
1367                 return -ENOMEM;
1368         }
1369         memset(uec, 0, sizeof(uec_private_t));
1370
1371         /* Adjust uec_info */
1372 #if (MAX_QE_RISC == 4)
1373         uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
1374         uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
1375 #endif
1376
1377         devlist[uec_info->uf_info.ucc_num] = dev;
1378
1379         uec->uec_info = uec_info;
1380         uec->dev = dev;
1381
1382         sprintf(dev->name, "UEC%d", uec_info->uf_info.ucc_num);
1383         dev->iobase = 0;
1384         dev->priv = (void *)uec;
1385         dev->init = uec_init;
1386         dev->halt = uec_halt;
1387         dev->send = uec_send;
1388         dev->recv = uec_recv;
1389
1390         /* Clear the ethnet address */
1391         for (i = 0; i < 6; i++)
1392                 dev->enetaddr[i] = 0;
1393
1394         eth_register(dev);
1395
1396         err = uec_startup(uec);
1397         if (err) {
1398                 printf("%s: Cannot configure net device, aborting.",dev->name);
1399                 return err;
1400         }
1401
1402 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
1403         int retval;
1404         struct mii_dev *mdiodev = mdio_alloc();
1405         if (!mdiodev)
1406                 return -ENOMEM;
1407         strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
1408         mdiodev->read = uec_miiphy_read;
1409         mdiodev->write = uec_miiphy_write;
1410
1411         retval = mdio_register(mdiodev);
1412         if (retval < 0)
1413                 return retval;
1414 #endif
1415
1416         return 1;
1417 }
1418
1419 int uec_eth_init(struct bd_info *bis, uec_info_t *uecs, int num)
1420 {
1421         int i;
1422
1423         for (i = 0; i < num; i++)
1424                 uec_initialize(bis, &uecs[i]);
1425
1426         return 0;
1427 }
1428
1429 int uec_standard_init(struct bd_info *bis)
1430 {
1431         return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
1432 }