drivers/qe/uec.c

   1 /*
   2  * Copyright (C) 2006 Freescale Semiconductor, Inc.
   3  *
   4  * Dave Liu <daveliu@freescale.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21
  22 #include "common.h"
  23 #include "net.h"
  24 #include "malloc.h"
  25 #include "asm/errno.h"
  26 #include "asm/io.h"
  27 #include "asm/immap_qe.h"
  28 #include "qe.h"
  29 #include "uccf.h"
  30 #include "uec.h"
  31 #include "uec_phy.h"
  32
  33 #if defined(CONFIG_QE)
  34
  35 #ifdef CONFIG_UEC_ETH1
  36 static uec_info_t eth1_uec_info = {
  37         .uf_info                = {
  38                 .ucc_num        = CFG_UEC1_UCC_NUM,
  39                 .rx_clock       = CFG_UEC1_RX_CLK,
  40                 .tx_clock       = CFG_UEC1_TX_CLK,
  41                 .eth_type       = CFG_UEC1_ETH_TYPE,
  42         },
  43         .num_threads_tx         = UEC_NUM_OF_THREADS_4,
  44         .num_threads_rx         = UEC_NUM_OF_THREADS_4,
  45         .riscTx                 = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  46         .riscRx                 = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  47         .tx_bd_ring_len         = 16,
  48         .rx_bd_ring_len         = 16,
  49         .phy_address            = CFG_UEC1_PHY_ADDR,
  50         .enet_interface         = CFG_UEC1_INTERFACE_MODE,
  51 };
  52 #endif
  53 #ifdef CONFIG_UEC_ETH2
  54 static uec_info_t eth2_uec_info = {
  55         .uf_info                = {
  56                 .ucc_num        = CFG_UEC2_UCC_NUM,
  57                 .rx_clock       = CFG_UEC2_RX_CLK,
  58                 .tx_clock       = CFG_UEC2_TX_CLK,
  59                 .eth_type       = CFG_UEC2_ETH_TYPE,
  60         },
  61         .num_threads_tx         = UEC_NUM_OF_THREADS_4,
  62         .num_threads_rx         = UEC_NUM_OF_THREADS_4,
  63         .riscTx                 = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  64         .riscRx                 = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  65         .tx_bd_ring_len         = 16,
  66         .rx_bd_ring_len         = 16,
  67         .phy_address            = CFG_UEC2_PHY_ADDR,
  68         .enet_interface         = CFG_UEC2_INTERFACE_MODE,
  69 };
  70 #endif
  71
  72 #ifdef CONFIG_UEC_ETH3
  73 static uec_info_t eth3_uec_info = {
  74         .uf_info                = {
  75                 .ucc_num        = CFG_UEC3_UCC_NUM,
  76                 .rx_clock       = CFG_UEC3_RX_CLK,
  77                 .tx_clock       = CFG_UEC3_TX_CLK,
  78                 .eth_type       = CFG_UEC3_ETH_TYPE,
  79         },
  80         .num_threads_tx         = UEC_NUM_OF_THREADS_4,
  81         .num_threads_rx         = UEC_NUM_OF_THREADS_4,
  82         .riscTx                 = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  83         .riscRx                 = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  84         .tx_bd_ring_len         = 16,
  85         .rx_bd_ring_len         = 16,
  86         .phy_address            = CFG_UEC3_PHY_ADDR,
  87         .enet_interface         = CFG_UEC3_INTERFACE_MODE,
  88 };
  89 #endif
  90
  91 static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  92 {
  93         uec_t           *uec_regs;
  94         u32             maccfg1;
  95
  96         if (!uec) {
  97                 printf("%s: uec not initial\n", __FUNCTION__);
  98                 return -EINVAL;
  99         }
 100         uec_regs = uec->uec_regs;
 101
 102         maccfg1 = in_be32(&uec_regs->maccfg1);
 103
 104         if (mode & COMM_DIR_TX) {
 105                 maccfg1 |= MACCFG1_ENABLE_TX;
 106                 out_be32(&uec_regs->maccfg1, maccfg1);
 107                 uec->mac_tx_enabled = 1;
 108         }
 109
 110         if (mode & COMM_DIR_RX) {
 111                 maccfg1 |= MACCFG1_ENABLE_RX;
 112                 out_be32(&uec_regs->maccfg1, maccfg1);
 113                 uec->mac_rx_enabled = 1;
 114         }
 115
 116         return 0;
 117 }
 118
 119 static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
 120 {
 121         uec_t           *uec_regs;
 122         u32             maccfg1;
 123
 124         if (!uec) {
 125                 printf("%s: uec not initial\n", __FUNCTION__);
 126                 return -EINVAL;
 127         }
 128         uec_regs = uec->uec_regs;
 129
 130         maccfg1 = in_be32(&uec_regs->maccfg1);
 131
 132         if (mode & COMM_DIR_TX) {
 133                 maccfg1 &= ~MACCFG1_ENABLE_TX;
 134                 out_be32(&uec_regs->maccfg1, maccfg1);
 135                 uec->mac_tx_enabled = 0;
 136         }
 137
 138         if (mode & COMM_DIR_RX) {
 139                 maccfg1 &= ~MACCFG1_ENABLE_RX;
 140                 out_be32(&uec_regs->maccfg1, maccfg1);
 141                 uec->mac_rx_enabled = 0;
 142         }
 143
 144         return 0;
 145 }
 146
 147 static int uec_graceful_stop_tx(uec_private_t *uec)
 148 {
 149         ucc_fast_t              *uf_regs;
 150         u32                     cecr_subblock;
 151         u32                     ucce;
 152
 153         if (!uec || !uec->uccf) {
 154                 printf("%s: No handle passed.\n", __FUNCTION__);
 155                 return -EINVAL;
 156         }
 157
 158         uf_regs = uec->uccf->uf_regs;
 159
 160         /* Clear the grace stop event */
 161         out_be32(&uf_regs->ucce, UCCE_GRA);
 162
 163         /* Issue host command */
 164         cecr_subblock =
 165                  ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 166         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
 167                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 168
 169         /* Wait for command to complete */
 170         do {
 171                 ucce = in_be32(&uf_regs->ucce);
 172         } while (! (ucce & UCCE_GRA));
 173
 174         uec->grace_stopped_tx = 1;
 175
 176         return 0;
 177 }
 178
 179 static int uec_graceful_stop_rx(uec_private_t *uec)
 180 {
 181         u32             cecr_subblock;
 182         u8              ack;
 183
 184         if (!uec) {
 185                 printf("%s: No handle passed.\n", __FUNCTION__);
 186                 return -EINVAL;
 187         }
 188
 189         if (!uec->p_rx_glbl_pram) {
 190                 printf("%s: No init rx global parameter\n", __FUNCTION__);
 191                 return -EINVAL;
 192         }
 193
 194         /* Clear acknowledge bit */
 195         ack = uec->p_rx_glbl_pram->rxgstpack;
 196         ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
 197         uec->p_rx_glbl_pram->rxgstpack = ack;
 198
 199         /* Keep issuing cmd and checking ack bit until it is asserted */
 200         do {
 201                 /* Issue host command */
 202                 cecr_subblock =
 203                  ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 204                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
 205                                  (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 206                 ack = uec->p_rx_glbl_pram->rxgstpack;
 207         } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
 208
 209         uec->grace_stopped_rx = 1;
 210
 211         return 0;
 212 }
 213
 214 static int uec_restart_tx(uec_private_t *uec)
 215 {
 216         u32             cecr_subblock;
 217
 218         if (!uec || !uec->uec_info) {
 219                 printf("%s: No handle passed.\n", __FUNCTION__);
 220                 return -EINVAL;
 221         }
 222
 223         cecr_subblock =
 224          ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 225         qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
 226                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 227
 228         uec->grace_stopped_tx = 0;
 229
 230         return 0;
 231 }
 232
 233 static int uec_restart_rx(uec_private_t *uec)
 234 {
 235         u32             cecr_subblock;
 236
 237         if (!uec || !uec->uec_info) {
 238                 printf("%s: No handle passed.\n", __FUNCTION__);
 239                 return -EINVAL;
 240         }
 241
 242         cecr_subblock =
 243          ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 244         qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
 245                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 246
 247         uec->grace_stopped_rx = 0;
 248
 249         return 0;
 250 }
 251
 252 static int uec_open(uec_private_t *uec, comm_dir_e mode)
 253 {
 254         ucc_fast_private_t      *uccf;
 255
 256         if (!uec || !uec->uccf) {
 257                 printf("%s: No handle passed.\n", __FUNCTION__);
 258                 return -EINVAL;
 259         }
 260         uccf = uec->uccf;
 261
 262         /* check if the UCC number is in range. */
 263         if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 264                 printf("%s: ucc_num out of range.\n", __FUNCTION__);
 265                 return -EINVAL;
 266         }
 267
 268         /* Enable MAC */
 269         uec_mac_enable(uec, mode);
 270
 271         /* Enable UCC fast */
 272         ucc_fast_enable(uccf, mode);
 273
 274         /* RISC microcode start */
 275         if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
 276                 uec_restart_tx(uec);
 277         }
 278         if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
 279                 uec_restart_rx(uec);
 280         }
 281
 282         return 0;
 283 }
 284
 285 static int uec_stop(uec_private_t *uec, comm_dir_e mode)
 286 {
 287         ucc_fast_private_t      *uccf;
 288
 289         if (!uec || !uec->uccf) {
 290                 printf("%s: No handle passed.\n", __FUNCTION__);
 291                 return -EINVAL;
 292         }
 293         uccf = uec->uccf;
 294
 295         /* check if the UCC number is in range. */
 296         if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 297                 printf("%s: ucc_num out of range.\n", __FUNCTION__);
 298                 return -EINVAL;
 299         }
 300         /* Stop any transmissions */
 301         if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
 302                 uec_graceful_stop_tx(uec);
 303         }
 304         /* Stop any receptions */
 305         if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
 306                 uec_graceful_stop_rx(uec);
 307         }
 308
 309         /* Disable the UCC fast */
 310         ucc_fast_disable(uec->uccf, mode);
 311
 312         /* Disable the MAC */
 313         uec_mac_disable(uec, mode);
 314
 315         return 0;
 316 }
 317
 318 static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
 319 {
 320         uec_t           *uec_regs;
 321         u32             maccfg2;
 322
 323         if (!uec) {
 324                 printf("%s: uec not initial\n", __FUNCTION__);
 325                 return -EINVAL;
 326         }
 327         uec_regs = uec->uec_regs;
 328
 329         if (duplex == DUPLEX_HALF) {
 330                 maccfg2 = in_be32(&uec_regs->maccfg2);
 331                 maccfg2 &= ~MACCFG2_FDX;
 332                 out_be32(&uec_regs->maccfg2, maccfg2);
 333         }
 334
 335         if (duplex == DUPLEX_FULL) {
 336                 maccfg2 = in_be32(&uec_regs->maccfg2);
 337                 maccfg2 |= MACCFG2_FDX;
 338                 out_be32(&uec_regs->maccfg2, maccfg2);
 339         }
 340
 341         return 0;
 342 }
 343
 344 static int uec_set_mac_if_mode(uec_private_t *uec, enet_interface_e if_mode)
 345 {
 346         enet_interface_e        enet_if_mode;
 347         uec_info_t              *uec_info;
 348         uec_t                   *uec_regs;
 349         u32                     upsmr;
 350         u32                     maccfg2;
 351
 352         if (!uec) {
 353                 printf("%s: uec not initial\n", __FUNCTION__);
 354                 return -EINVAL;
 355         }
 356
 357         uec_info = uec->uec_info;
 358         uec_regs = uec->uec_regs;
 359         enet_if_mode = if_mode;
 360
 361         maccfg2 = in_be32(&uec_regs->maccfg2);
 362         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
 363
 364         upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
 365         upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
 366
 367         switch (enet_if_mode) {
 368                 case ENET_100_MII:
 369                 case ENET_10_MII:
 370                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 371                         break;
 372                 case ENET_1000_GMII:
 373                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 374                         break;
 375                 case ENET_1000_TBI:
 376                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 377                         upsmr |= UPSMR_TBIM;
 378                         break;
 379                 case ENET_1000_RTBI:
 380                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 381                         upsmr |= (UPSMR_RPM | UPSMR_TBIM);
 382                         break;
 383                 case ENET_1000_RGMII:
 384                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 385                         upsmr |= UPSMR_RPM;
 386                         break;
 387                 case ENET_100_RGMII:
 388                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 389                         upsmr |= UPSMR_RPM;
 390                         break;
 391                 case ENET_10_RGMII:
 392                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 393                         upsmr |= (UPSMR_RPM | UPSMR_R10M);
 394                         break;
 395                 case ENET_100_RMII:
 396                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 397                         upsmr |= UPSMR_RMM;
 398                         break;
 399                 case ENET_10_RMII:
 400                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 401                         upsmr |= (UPSMR_R10M | UPSMR_RMM);
 402                         break;
 403                 default:
 404                         return -EINVAL;
 405                         break;
 406         }
 407         out_be32(&uec_regs->maccfg2, maccfg2);
 408         out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
 409
 410         return 0;
 411 }
 412
 413 static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
 414 {
 415         uint            timeout = 0x1000;
 416         u32             miimcfg = 0;
 417
 418         miimcfg = in_be32(&uec_mii_regs->miimcfg);
 419         miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
 420         out_be32(&uec_mii_regs->miimcfg, miimcfg);
 421
 422         /* Wait until the bus is free */
 423         while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
 424         if (timeout <= 0) {
 425                 printf("%s: The MII Bus is stuck!", __FUNCTION__);
 426                 return -ETIMEDOUT;
 427         }
 428
 429         return 0;
 430 }
 431
 432 static int init_phy(struct eth_device *dev)
 433 {
 434         uec_private_t           *uec;
 435         uec_mii_t               *umii_regs;
 436         struct uec_mii_info     *mii_info;
 437         struct phy_info         *curphy;
 438         int                     err;
 439
 440         uec = (uec_private_t *)dev->priv;
 441         umii_regs = uec->uec_mii_regs;
 442
 443         uec->oldlink = 0;
 444         uec->oldspeed = 0;
 445         uec->oldduplex = -1;
 446
 447         mii_info = malloc(sizeof(*mii_info));
 448         if (!mii_info) {
 449                 printf("%s: Could not allocate mii_info", dev->name);
 450                 return -ENOMEM;
 451         }
 452         memset(mii_info, 0, sizeof(*mii_info));
 453
 454         if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 455                 mii_info->speed = SPEED_1000;
 456         } else {
 457                 mii_info->speed = SPEED_100;
 458         }
 459
 460         mii_info->duplex = DUPLEX_FULL;
 461         mii_info->pause = 0;
 462         mii_info->link = 1;
 463
 464         mii_info->advertising = (ADVERTISED_10baseT_Half |
 465                                 ADVERTISED_10baseT_Full |
 466                                 ADVERTISED_100baseT_Half |
 467                                 ADVERTISED_100baseT_Full |
 468                                 ADVERTISED_1000baseT_Full);
 469         mii_info->autoneg = 1;
 470         mii_info->mii_id = uec->uec_info->phy_address;
 471         mii_info->dev = dev;
 472
 473         mii_info->mdio_read = &uec_read_phy_reg;
 474         mii_info->mdio_write = &uec_write_phy_reg;
 475
 476         uec->mii_info = mii_info;
 477
 478         if (init_mii_management_configuration(umii_regs)) {
 479                 printf("%s: The MII Bus is stuck!", dev->name);
 480                 err = -1;
 481                 goto bus_fail;
 482         }
 483
 484         /* get info for this PHY */
 485         curphy = uec_get_phy_info(uec->mii_info);
 486         if (!curphy) {
 487                 printf("%s: No PHY found", dev->name);
 488                 err = -1;
 489                 goto no_phy;
 490         }
 491
 492         mii_info->phyinfo = curphy;
 493
 494         /* Run the commands which initialize the PHY */
 495         if (curphy->init) {
 496                 err = curphy->init(uec->mii_info);
 497                 if (err)
 498                         goto phy_init_fail;
 499         }
 500
 501         return 0;
 502
 503 phy_init_fail:
 504 no_phy:
 505 bus_fail:
 506         free(mii_info);
 507         return err;
 508 }
 509
 510 static void adjust_link(struct eth_device *dev)
 511 {
 512         uec_private_t           *uec = (uec_private_t *)dev->priv;
 513         uec_t                   *uec_regs;
 514         struct uec_mii_info     *mii_info = uec->mii_info;
 515
 516         extern void change_phy_interface_mode(struct eth_device *dev,
 517                                          enet_interface_e mode);
 518         uec_regs = uec->uec_regs;
 519
 520         if (mii_info->link) {
 521                 /* Now we make sure that we can be in full duplex mode.
 522                 * If not, we operate in half-duplex mode. */
 523                 if (mii_info->duplex != uec->oldduplex) {
 524                         if (!(mii_info->duplex)) {
 525                                 uec_set_mac_duplex(uec, DUPLEX_HALF);
 526                                 printf("%s: Half Duplex\n", dev->name);
 527                         } else {
 528                                 uec_set_mac_duplex(uec, DUPLEX_FULL);
 529                                 printf("%s: Full Duplex\n", dev->name);
 530                         }
 531                         uec->oldduplex = mii_info->duplex;
 532                 }
 533
 534                 if (mii_info->speed != uec->oldspeed) {
 535                         if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 536                                 switch (mii_info->speed) {
 537                                 case 1000:
 538                                         break;
 539                                 case 100:
 540                                         printf ("switching to rgmii 100\n");
 541                                         /* change phy to rgmii 100 */
 542                                         change_phy_interface_mode(dev,
 543                                                                 ENET_100_RGMII);
 544                                         /* change the MAC interface mode */
 545                                         uec_set_mac_if_mode(uec,ENET_100_RGMII);
 546                                         break;
 547                                 case 10:
 548                                         printf ("switching to rgmii 10\n");
 549                                         /* change phy to rgmii 10 */
 550                                         change_phy_interface_mode(dev,
 551                                                                 ENET_10_RGMII);
 552                                         /* change the MAC interface mode */
 553                                         uec_set_mac_if_mode(uec,ENET_10_RGMII);
 554                                         break;
 555                                 default:
 556                                         printf("%s: Ack,Speed(%d)is illegal\n",
 557                                                 dev->name, mii_info->speed);
 558                                         break;
 559                                 }
 560                         }
 561
 562                         printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
 563                         uec->oldspeed = mii_info->speed;
 564                 }
 565
 566                 if (!uec->oldlink) {
 567                         printf("%s: Link is up\n", dev->name);
 568                         uec->oldlink = 1;
 569                 }
 570
 571         } else { /* if (mii_info->link) */
 572                 if (uec->oldlink) {
 573                         printf("%s: Link is down\n", dev->name);
 574                         uec->oldlink = 0;
 575                         uec->oldspeed = 0;
 576                         uec->oldduplex = -1;
 577                 }
 578         }
 579 }
 580
 581 static void phy_change(struct eth_device *dev)
 582 {
 583         uec_private_t   *uec = (uec_private_t *)dev->priv;
 584         uec_t           *uec_regs;
 585         int             result = 0;
 586
 587         uec_regs = uec->uec_regs;
 588
 589         /* Delay 5s to give the PHY a chance to change the register state */
 590         udelay(5000000);
 591
 592         /* Update the link, speed, duplex */
 593         result = uec->mii_info->phyinfo->read_status(uec->mii_info);
 594
 595         /* Adjust the interface according to speed */
 596         if ((0 == result) || (uec->mii_info->link == 0)) {
 597                 adjust_link(dev);
 598         }
 599 }
 600
 601 static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
 602 {
 603         uec_t           *uec_regs;
 604         u32             mac_addr1;
 605         u32             mac_addr2;
 606
 607         if (!uec) {
 608                 printf("%s: uec not initial\n", __FUNCTION__);
 609                 return -EINVAL;
 610         }
 611
 612         uec_regs = uec->uec_regs;
 613
 614         /* if a station address of 0x12345678ABCD, perform a write to
 615         MACSTNADDR1 of 0xCDAB7856,
 616         MACSTNADDR2 of 0x34120000 */
 617
 618         mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
 619                         (mac_addr[3] << 8)  | (mac_addr[2]);
 620         out_be32(&uec_regs->macstnaddr1, mac_addr1);
 621
 622         mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
 623         out_be32(&uec_regs->macstnaddr2, mac_addr2);
 624
 625         return 0;
 626 }
 627
 628 static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
 629                                          int *threads_num_ret)
 630 {
 631         int     num_threads_numerica;
 632
 633         switch (threads_num) {
 634                 case UEC_NUM_OF_THREADS_1:
 635                         num_threads_numerica = 1;
 636                         break;
 637                 case UEC_NUM_OF_THREADS_2:
 638                         num_threads_numerica = 2;
 639                         break;
 640                 case UEC_NUM_OF_THREADS_4:
 641                         num_threads_numerica = 4;
 642                         break;
 643                 case UEC_NUM_OF_THREADS_6:
 644                         num_threads_numerica = 6;
 645                         break;
 646                 case UEC_NUM_OF_THREADS_8:
 647                         num_threads_numerica = 8;
 648                         break;
 649                 default:
 650                         printf("%s: Bad number of threads value.",
 651                                  __FUNCTION__);
 652                         return -EINVAL;
 653         }
 654
 655         *threads_num_ret = num_threads_numerica;
 656
 657         return 0;
 658 }
 659
 660 static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
 661 {
 662         uec_info_t      *uec_info;
 663         u32             end_bd;
 664         u8              bmrx = 0;
 665         int             i;
 666
 667         uec_info = uec->uec_info;
 668
 669         /* Alloc global Tx parameter RAM page */
 670         uec->tx_glbl_pram_offset = qe_muram_alloc(
 671                                 sizeof(uec_tx_global_pram_t),
 672                                  UEC_TX_GLOBAL_PRAM_ALIGNMENT);
 673         uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
 674                                 qe_muram_addr(uec->tx_glbl_pram_offset);
 675
 676         /* Zero the global Tx prameter RAM */
 677         memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
 678
 679         /* Init global Tx parameter RAM */
 680
 681         /* TEMODER, RMON statistics disable, one Tx queue */
 682         out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
 683
 684         /* SQPTR */
 685         uec->send_q_mem_reg_offset = qe_muram_alloc(
 686                                 sizeof(uec_send_queue_qd_t),
 687                                  UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
 688         uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
 689                                 qe_muram_addr(uec->send_q_mem_reg_offset);
 690         out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
 691
 692         /* Setup the table with TxBDs ring */
 693         end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
 694                                          * SIZEOFBD;
 695         out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
 696                                  (u32)(uec->p_tx_bd_ring));
 697         out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
 698                                                  end_bd);
 699
 700         /* Scheduler Base Pointer, we have only one Tx queue, no need it */
 701         out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
 702
 703         /* TxRMON Base Pointer, TxRMON disable, we don't need it */
 704         out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
 705
 706         /* TSTATE, global snooping, big endian, the CSB bus selected */
 707         bmrx = BMR_INIT_VALUE;
 708         out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
 709
 710         /* IPH_Offset */
 711         for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
 712                 out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
 713         }
 714
 715         /* VTAG table */
 716         for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
 717                 out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
 718         }
 719
 720         /* TQPTR */
 721         uec->thread_dat_tx_offset = qe_muram_alloc(
 722                 num_threads_tx * sizeof(uec_thread_data_tx_t) +
 723                  32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
 724
 725         uec->p_thread_data_tx = (uec_thread_data_tx_t *)
 726                                 qe_muram_addr(uec->thread_dat_tx_offset);
 727         out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
 728 }
 729
 730 static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
 731 {
 732         u8      bmrx = 0;
 733         int     i;
 734         uec_82xx_address_filtering_pram_t       *p_af_pram;
 735
 736         /* Allocate global Rx parameter RAM page */
 737         uec->rx_glbl_pram_offset = qe_muram_alloc(
 738                 sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
 739         uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
 740                                 qe_muram_addr(uec->rx_glbl_pram_offset);
 741
 742         /* Zero Global Rx parameter RAM */
 743         memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
 744
 745         /* Init global Rx parameter RAM */
 746         /* REMODER, Extended feature mode disable, VLAN disable,
 747          LossLess flow control disable, Receive firmware statisic disable,
 748          Extended address parsing mode disable, One Rx queues,
 749          Dynamic maximum/minimum frame length disable, IP checksum check
 750          disable, IP address alignment disable
 751         */
 752         out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
 753
 754         /* RQPTR */
 755         uec->thread_dat_rx_offset = qe_muram_alloc(
 756                         num_threads_rx * sizeof(uec_thread_data_rx_t),
 757                          UEC_THREAD_DATA_ALIGNMENT);
 758         uec->p_thread_data_rx = (uec_thread_data_rx_t *)
 759                                 qe_muram_addr(uec->thread_dat_rx_offset);
 760         out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
 761
 762         /* Type_or_Len */
 763         out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
 764
 765         /* RxRMON base pointer, we don't need it */
 766         out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
 767
 768         /* IntCoalescingPTR, we don't need it, no interrupt */
 769         out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
 770
 771         /* RSTATE, global snooping, big endian, the CSB bus selected */
 772         bmrx = BMR_INIT_VALUE;
 773         out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
 774
 775         /* MRBLR */
 776         out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
 777
 778         /* RBDQPTR */
 779         uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
 780                                 sizeof(uec_rx_bd_queues_entry_t) + \
 781                                 sizeof(uec_rx_prefetched_bds_t),
 782                                  UEC_RX_BD_QUEUES_ALIGNMENT);
 783         uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
 784                                 qe_muram_addr(uec->rx_bd_qs_tbl_offset);
 785
 786         /* Zero it */
 787         memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
 788                                         sizeof(uec_rx_prefetched_bds_t));
 789         out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
 790         out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
 791                  (u32)uec->p_rx_bd_ring);
 792
 793         /* MFLR */
 794         out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
 795         /* MINFLR */
 796         out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
 797         /* MAXD1 */
 798         out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
 799         /* MAXD2 */
 800         out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
 801         /* ECAM_PTR */
 802         out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
 803         /* L2QT */
 804         out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
 805         /* L3QT */
 806         for (i = 0; i < 8; i++) {
 807                 out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
 808         }
 809
 810         /* VLAN_TYPE */
 811         out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
 812         /* TCI */
 813         out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
 814
 815         /* Clear PQ2 style address filtering hash table */
 816         p_af_pram = (uec_82xx_address_filtering_pram_t *) \
 817                         uec->p_rx_glbl_pram->addressfiltering;
 818
 819         p_af_pram->iaddr_h = 0;
 820         p_af_pram->iaddr_l = 0;
 821         p_af_pram->gaddr_h = 0;
 822         p_af_pram->gaddr_l = 0;
 823 }
 824
 825 static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
 826                                          int thread_tx, int thread_rx)
 827 {
 828         uec_init_cmd_pram_t             *p_init_enet_param;
 829         u32                             init_enet_param_offset;
 830         uec_info_t                      *uec_info;
 831         int                             i;
 832         int                             snum;
 833         u32                             init_enet_offset;
 834         u32                             entry_val;
 835         u32                             command;
 836         u32                             cecr_subblock;
 837
 838         uec_info = uec->uec_info;
 839
 840         /* Allocate init enet command parameter */
 841         uec->init_enet_param_offset = qe_muram_alloc(
 842                                         sizeof(uec_init_cmd_pram_t), 4);
 843         init_enet_param_offset = uec->init_enet_param_offset;
 844         uec->p_init_enet_param = (uec_init_cmd_pram_t *)
 845                                 qe_muram_addr(uec->init_enet_param_offset);
 846
 847         /* Zero init enet command struct */
 848         memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
 849
 850         /* Init the command struct */
 851         p_init_enet_param = uec->p_init_enet_param;
 852         p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
 853         p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
 854         p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
 855         p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
 856         p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
 857         p_init_enet_param->largestexternallookupkeysize = 0;
 858
 859         p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
 860                                          << ENET_INIT_PARAM_RGF_SHIFT;
 861         p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
 862                                          << ENET_INIT_PARAM_TGF_SHIFT;
 863
 864         /* Init Rx global parameter pointer */
 865         p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
 866                                                  (u32)uec_info->riscRx;
 867
 868         /* Init Rx threads */
 869         for (i = 0; i < (thread_rx + 1); i++) {
 870                 if ((snum = qe_get_snum()) < 0) {
 871                         printf("%s can not get snum\n", __FUNCTION__);
 872                         return -ENOMEM;
 873                 }
 874
 875                 if (i==0) {
 876                         init_enet_offset = 0;
 877                 } else {
 878                         init_enet_offset = qe_muram_alloc(
 879                                         sizeof(uec_thread_rx_pram_t),
 880                                          UEC_THREAD_RX_PRAM_ALIGNMENT);
 881                 }
 882
 883                 entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 884                                  init_enet_offset | (u32)uec_info->riscRx;
 885                 p_init_enet_param->rxthread[i] = entry_val;
 886         }
 887
 888         /* Init Tx global parameter pointer */
 889         p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
 890                                          (u32)uec_info->riscTx;
 891
 892         /* Init Tx threads */
 893         for (i = 0; i < thread_tx; i++) {
 894                 if ((snum = qe_get_snum()) < 0) {
 895                         printf("%s can not get snum\n", __FUNCTION__);
 896                         return -ENOMEM;
 897                 }
 898
 899                 init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
 900                                                  UEC_THREAD_TX_PRAM_ALIGNMENT);
 901
 902                 entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 903                                  init_enet_offset | (u32)uec_info->riscTx;
 904                 p_init_enet_param->txthread[i] = entry_val;
 905         }
 906
 907         __asm__ __volatile__("sync");
 908
 909         /* Issue QE command */
 910         command = QE_INIT_TX_RX;
 911         cecr_subblock = ucc_fast_get_qe_cr_subblock(
 912                                 uec->uec_info->uf_info.ucc_num);
 913         qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
 914                                                  init_enet_param_offset);
 915
 916         return 0;
 917 }
 918
 919 static int uec_startup(uec_private_t *uec)
 920 {
 921         uec_info_t                      *uec_info;
 922         ucc_fast_info_t                 *uf_info;
 923         ucc_fast_private_t              *uccf;
 924         ucc_fast_t                      *uf_regs;
 925         uec_t                           *uec_regs;
 926         int                             num_threads_tx;
 927         int                             num_threads_rx;
 928         u32                             utbipar;
 929         enet_interface_e                enet_interface;
 930         u32                             length;
 931         u32                             align;
 932         qe_bd_t                         *bd;
 933         u8                              *buf;
 934         int                             i;
 935
 936         if (!uec || !uec->uec_info) {
 937                 printf("%s: uec or uec_info not initial\n", __FUNCTION__);
 938                 return -EINVAL;
 939         }
 940
 941         uec_info = uec->uec_info;
 942         uf_info = &(uec_info->uf_info);
 943
 944         /* Check if Rx BD ring len is illegal */
 945         if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
 946                 (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
 947                 printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
 948                          __FUNCTION__);
 949                 return -EINVAL;
 950         }
 951
 952         /* Check if Tx BD ring len is illegal */
 953         if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
 954                 printf("%s: Tx BD ring length must not be smaller than 2.\n",
 955                          __FUNCTION__);
 956                 return -EINVAL;
 957         }
 958
 959         /* Check if MRBLR is illegal */
 960         if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN  % UEC_MRBLR_ALIGNMENT)) {
 961                 printf("%s: max rx buffer length must be mutliple of 128.\n",
 962                          __FUNCTION__);
 963                 return -EINVAL;
 964         }
 965
 966         /* Both Rx and Tx are stopped */
 967         uec->grace_stopped_rx = 1;
 968         uec->grace_stopped_tx = 1;
 969
 970         /* Init UCC fast */
 971         if (ucc_fast_init(uf_info, &uccf)) {
 972                 printf("%s: failed to init ucc fast\n", __FUNCTION__);
 973                 return -ENOMEM;
 974         }
 975
 976         /* Save uccf */
 977         uec->uccf = uccf;
 978
 979         /* Convert the Tx threads number */
 980         if (uec_convert_threads_num(uec_info->num_threads_tx,
 981                                          &num_threads_tx)) {
 982                 return -EINVAL;
 983         }
 984
 985         /* Convert the Rx threads number */
 986         if (uec_convert_threads_num(uec_info->num_threads_rx,
 987                                          &num_threads_rx)) {
 988                 return -EINVAL;
 989         }
 990
 991         uf_regs = uccf->uf_regs;
 992
 993         /* UEC register is following UCC fast registers */
 994         uec_regs = (uec_t *)(&uf_regs->ucc_eth);
 995
 996         /* Save the UEC register pointer to UEC private struct */
 997         uec->uec_regs = uec_regs;
 998
 999         /* Init UPSMR, enable hardware statistics (UCC) */
1000         out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
1001
1002         /* Init MACCFG1, flow control disable, disable Tx and Rx */
1003         out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
1004
1005         /* Init MACCFG2, length check, MAC PAD and CRC enable */
1006         out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
1007
1008         /* Setup MAC interface mode */
1009         uec_set_mac_if_mode(uec, uec_info->enet_interface);
1010
1011         /* Setup MII management base */
1012 #ifndef CONFIG_eTSEC_MDIO_BUS
1013         uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
1014 #else
1015         uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
1016 #endif
1017
1018         /* Setup MII master clock source */
1019         qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
1020
1021         /* Setup UTBIPAR */
1022         utbipar = in_be32(&uec_regs->utbipar);
1023         utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1024         enet_interface = uec->uec_info->enet_interface;
1025         if (enet_interface == ENET_1000_TBI ||
1026                  enet_interface == ENET_1000_RTBI) {
1027                 utbipar |=  (uec_info->phy_address + uec_info->uf_info.ucc_num)
1028                                                  << UTBIPAR_PHY_ADDRESS_SHIFT;
1029         } else {
1030                 utbipar |=  (0x10 + uec_info->uf_info.ucc_num)
1031                                                  << UTBIPAR_PHY_ADDRESS_SHIFT;
1032         }
1033
1034         out_be32(&uec_regs->utbipar, utbipar);
1035
1036         /* Allocate Tx BDs */
1037         length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
1038                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
1039                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1040         if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
1041                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
1042                 length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1043         }
1044
1045         align = UEC_TX_BD_RING_ALIGNMENT;
1046         uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
1047         if (uec->tx_bd_ring_offset != 0) {
1048                 uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
1049                                                  & ~(align - 1));
1050         }
1051
1052         /* Zero all of Tx BDs */
1053         memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
1054
1055         /* Allocate Rx BDs */
1056         length = uec_info->rx_bd_ring_len * SIZEOFBD;
1057         align = UEC_RX_BD_RING_ALIGNMENT;
1058         uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
1059         if (uec->rx_bd_ring_offset != 0) {
1060                 uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
1061                                                          & ~(align - 1));
1062         }
1063
1064         /* Zero all of Rx BDs */
1065         memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
1066
1067         /* Allocate Rx buffer */
1068         length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
1069         align = UEC_RX_DATA_BUF_ALIGNMENT;
1070         uec->rx_buf_offset = (u32)malloc(length + align);
1071         if (uec->rx_buf_offset != 0) {
1072                 uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
1073                                                  & ~(align - 1));
1074         }
1075
1076         /* Zero all of the Rx buffer */
1077         memset((void *)(uec->rx_buf_offset), 0, length + align);
1078
1079         /* Init TxBD ring */
1080         bd = (qe_bd_t *)uec->p_tx_bd_ring;
1081         uec->txBd = bd;
1082
1083         for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
1084                 BD_DATA_CLEAR(bd);
1085                 BD_STATUS_SET(bd, 0);
1086                 BD_LENGTH_SET(bd, 0);
1087                 bd ++;
1088         }
1089         BD_STATUS_SET((--bd), TxBD_WRAP);
1090
1091         /* Init RxBD ring */
1092         bd = (qe_bd_t *)uec->p_rx_bd_ring;
1093         uec->rxBd = bd;
1094         buf = uec->p_rx_buf;
1095         for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
1096                 BD_DATA_SET(bd, buf);
1097                 BD_LENGTH_SET(bd, 0);
1098                 BD_STATUS_SET(bd, RxBD_EMPTY);
1099                 buf += MAX_RXBUF_LEN;
1100                 bd ++;
1101         }
1102         BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
1103
1104         /* Init global Tx parameter RAM */
1105         uec_init_tx_parameter(uec, num_threads_tx);
1106
1107         /* Init global Rx parameter RAM */
1108         uec_init_rx_parameter(uec, num_threads_rx);
1109
1110         /* Init ethernet Tx and Rx parameter command */
1111         if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
1112                                          num_threads_rx)) {
1113                 printf("%s issue init enet cmd failed\n", __FUNCTION__);
1114                 return -ENOMEM;
1115         }
1116
1117         return 0;
1118 }
1119
1120 static int uec_init(struct eth_device* dev, bd_t *bd)
1121 {
1122         uec_private_t           *uec;
1123         int                     err;
1124
1125         uec = (uec_private_t *)dev->priv;
1126
1127         if (uec->the_first_run == 0) {
1128                 /* Set up the MAC address */
1129                 if (dev->enetaddr[0] & 0x01) {
1130                         printf("%s: MacAddress is multcast address\n",
1131                                  __FUNCTION__);
1132                         return -1;
1133                 }
1134                 uec_set_mac_address(uec, dev->enetaddr);
1135                 uec->the_first_run = 1;
1136         }
1137
1138         err = uec_open(uec, COMM_DIR_RX_AND_TX);
1139         if (err) {
1140                 printf("%s: cannot enable UEC device\n", dev->name);
1141                 return -1;
1142         }
1143
1144         return (uec->mii_info->link ? 0 : -1);
1145 }
1146
1147 static void uec_halt(struct eth_device* dev)
1148 {
1149         uec_private_t   *uec = (uec_private_t *)dev->priv;
1150         uec_stop(uec, COMM_DIR_RX_AND_TX);
1151 }
1152
1153 static int uec_send(struct eth_device* dev, volatile void *buf, int len)
1154 {
1155         uec_private_t           *uec;
1156         ucc_fast_private_t      *uccf;
1157         volatile qe_bd_t        *bd;
1158         u16                     status;
1159         int                     i;
1160         int                     result = 0;
1161
1162         uec = (uec_private_t *)dev->priv;
1163         uccf = uec->uccf;
1164         bd = uec->txBd;
1165
1166         /* Find an empty TxBD */
1167         for (i = 0; bd->status & TxBD_READY; i++) {
1168                 if (i > 0x100000) {
1169                         printf("%s: tx buffer not ready\n", dev->name);
1170                         return result;
1171                 }
1172         }
1173
1174         /* Init TxBD */
1175         BD_DATA_SET(bd, buf);
1176         BD_LENGTH_SET(bd, len);
1177         status = bd->status;
1178         status &= BD_WRAP;
1179         status |= (TxBD_READY | TxBD_LAST);
1180         BD_STATUS_SET(bd, status);
1181
1182         /* Tell UCC to transmit the buffer */
1183         ucc_fast_transmit_on_demand(uccf);
1184
1185         /* Wait for buffer to be transmitted */
1186         for (i = 0; bd->status & TxBD_READY; i++) {
1187                 if (i > 0x100000) {
1188                         printf("%s: tx error\n", dev->name);
1189                         return result;
1190                 }
1191         }
1192
1193         /* Ok, the buffer be transimitted */
1194         BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
1195         uec->txBd = bd;
1196         result = 1;
1197
1198         return result;
1199 }
1200
1201 static int uec_recv(struct eth_device* dev)
1202 {
1203         uec_private_t           *uec = dev->priv;
1204         volatile qe_bd_t        *bd;
1205         u16                     status;
1206         u16                     len;
1207         u8                      *data;
1208
1209         bd = uec->rxBd;
1210         status = bd->status;
1211
1212         while (!(status & RxBD_EMPTY)) {
1213                 if (!(status & RxBD_ERROR)) {
1214                         data = BD_DATA(bd);
1215                         len = BD_LENGTH(bd);
1216                         NetReceive(data, len);
1217                 } else {
1218                         printf("%s: Rx error\n", dev->name);
1219                 }
1220                 status &= BD_CLEAN;
1221                 BD_LENGTH_SET(bd, 0);
1222                 BD_STATUS_SET(bd, status | RxBD_EMPTY);
1223                 BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
1224                 status = bd->status;
1225         }
1226         uec->rxBd = bd;
1227
1228         return 1;
1229 }
1230
1231 int uec_initialize(int index)
1232 {
1233         struct eth_device       *dev;
1234         int                     i;
1235         uec_private_t           *uec;
1236         uec_info_t              *uec_info;
1237         int                     err;
1238
1239         dev = (struct eth_device *)malloc(sizeof(struct eth_device));
1240         if (!dev)
1241                 return 0;
1242         memset(dev, 0, sizeof(struct eth_device));
1243
1244         /* Allocate the UEC private struct */
1245         uec = (uec_private_t *)malloc(sizeof(uec_private_t));
1246         if (!uec) {
1247                 return -ENOMEM;
1248         }
1249         memset(uec, 0, sizeof(uec_private_t));
1250
1251         /* Init UEC private struct, they come from board.h */
1252         if (index == 0) {
1253 #ifdef CONFIG_UEC_ETH1
1254                 uec_info = &eth1_uec_info;
1255 #endif
1256         } else if (index == 1) {
1257 #ifdef CONFIG_UEC_ETH2
1258                 uec_info = &eth2_uec_info;
1259 #endif
1260         } else if (index == 2) {
1261 #ifdef CONFIG_UEC_ETH3
1262                 uec_info = &eth3_uec_info;
1263 #endif
1264         } else {
1265                 printf("%s: index is illegal.\n", __FUNCTION__);
1266                 return -EINVAL;
1267         }
1268
1269         uec->uec_info = uec_info;
1270
1271         sprintf(dev->name, "FSL UEC%d", index);
1272         dev->iobase = 0;
1273         dev->priv = (void *)uec;
1274         dev->init = uec_init;
1275         dev->halt = uec_halt;
1276         dev->send = uec_send;
1277         dev->recv = uec_recv;
1278
1279         /* Clear the ethnet address */
1280         for (i = 0; i < 6; i++)
1281                 dev->enetaddr[i] = 0;
1282
1283         eth_register(dev);
1284
1285         err = uec_startup(uec);
1286         if (err) {
1287                 printf("%s: Cannot configure net device, aborting.",dev->name);
1288                 return err;
1289         }
1290
1291         err = init_phy(dev);
1292         if (err) {
1293                 printf("%s: Cannot initialize PHY, aborting.\n", dev->name);
1294                 return err;
1295         }
1296
1297         phy_change(dev);
1298
1299         return 1;
1300 }
1301 #endif /* CONFIG_QE */