drivers/net/saa9730.c

   1 /*
   2  * Copyright (C) 2000, 2005  MIPS Technologies, Inc.  All rights reserved.
   3  *      Authors: Carsten Langgaard <carstenl@mips.com>
   4  *               Maciej W. Rozycki <macro@mips.com>
   5  * Copyright (C) 2004 Ralf Baechle <ralf@linux-mips.org>
   6  *
   7  *  This program is free software; you can distribute it and/or modify it
   8  *  under the terms of the GNU General Public License (Version 2) as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope it will be useful, but WITHOUT
  12  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  *  for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  19  *
  20  * SAA9730 ethernet driver.
  21  *
  22  * Changes:
  23  * Angelo Dell'Aera <buffer@antifork.org> :     Conversion to the new PCI API
  24  *                                              (pci_driver).
  25  *                                              Conversion to spinlocks.
  26  *                                              Error handling fixes.
  27  */
  28
  29 #include <linux/init.h>
  30 #include <linux/netdevice.h>
  31 #include <linux/delay.h>
  32 #include <linux/etherdevice.h>
  33 #include <linux/module.h>
  34 #include <linux/skbuff.h>
  35 #include <linux/pci.h>
  36 #include <linux/spinlock.h>
  37 #include <linux/types.h>
  38
  39 #include <asm/addrspace.h>
  40 #include <asm/io.h>
  41
  42 #include <asm/mips-boards/prom.h>
  43
  44 #include "saa9730.h"
  45
  46 #ifdef LAN_SAA9730_DEBUG
  47 int lan_saa9730_debug = LAN_SAA9730_DEBUG;
  48 #else
  49 int lan_saa9730_debug;
  50 #endif
  51
  52 #define DRV_MODULE_NAME "saa9730"
  53
  54 static struct pci_device_id saa9730_pci_tbl[] = {
  55         { PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA9730,
  56           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
  57         { 0, }
  58 };
  59
  60 MODULE_DEVICE_TABLE(pci, saa9730_pci_tbl);
  61
  62 /* Non-zero only if the current card is a PCI with BIOS-set IRQ. */
  63 static unsigned int pci_irq_line;
  64
  65 static void evm_saa9730_enable_lan_int(struct lan_saa9730_private *lp)
  66 {
  67         outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) | EVM_LAN_INT,
  68              &lp->evm_saa9730_regs->InterruptBlock1);
  69         outl(readl(&lp->evm_saa9730_regs->InterruptStatus1) | EVM_LAN_INT,
  70              &lp->evm_saa9730_regs->InterruptStatus1);
  71         outl(readl(&lp->evm_saa9730_regs->InterruptEnable1) | EVM_LAN_INT |
  72              EVM_MASTER_EN, &lp->evm_saa9730_regs->InterruptEnable1);
  73 }
  74
  75 static void evm_saa9730_disable_lan_int(struct lan_saa9730_private *lp)
  76 {
  77         outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) & ~EVM_LAN_INT,
  78              &lp->evm_saa9730_regs->InterruptBlock1);
  79         outl(readl(&lp->evm_saa9730_regs->InterruptEnable1) & ~EVM_LAN_INT,
  80              &lp->evm_saa9730_regs->InterruptEnable1);
  81 }
  82
  83 static void evm_saa9730_clear_lan_int(struct lan_saa9730_private *lp)
  84 {
  85         outl(EVM_LAN_INT, &lp->evm_saa9730_regs->InterruptStatus1);
  86 }
  87
  88 static void evm_saa9730_block_lan_int(struct lan_saa9730_private *lp)
  89 {
  90         outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) & ~EVM_LAN_INT,
  91              &lp->evm_saa9730_regs->InterruptBlock1);
  92 }
  93
  94 static void evm_saa9730_unblock_lan_int(struct lan_saa9730_private *lp)
  95 {
  96         outl(readl(&lp->evm_saa9730_regs->InterruptBlock1) | EVM_LAN_INT,
  97              &lp->evm_saa9730_regs->InterruptBlock1);
  98 }
  99
 100 static void __attribute_used__ show_saa9730_regs(struct lan_saa9730_private *lp)
 101 {
 102         int i, j;
 103         printk("TxmBufferA = %p\n", lp->TxmBuffer[0][0]);
 104         printk("TxmBufferB = %p\n", lp->TxmBuffer[1][0]);
 105         printk("RcvBufferA = %p\n", lp->RcvBuffer[0][0]);
 106         printk("RcvBufferB = %p\n", lp->RcvBuffer[1][0]);
 107         for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
 108                 for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
 109                         printk("TxmBuffer[%d][%d] = %x\n", i, j,
 110                                le32_to_cpu(*(unsigned int *)
 111                                            lp->TxmBuffer[i][j]));
 112                 }
 113         }
 114         for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
 115                 for (j = 0; j < LAN_SAA9730_RCV_Q_SIZE; j++) {
 116                         printk("RcvBuffer[%d][%d] = %x\n", i, j,
 117                                le32_to_cpu(*(unsigned int *)
 118                                            lp->RcvBuffer[i][j]));
 119                 }
 120         }
 121         printk("lp->evm_saa9730_regs->InterruptBlock1 = %x\n",
 122                readl(&lp->evm_saa9730_regs->InterruptBlock1));
 123         printk("lp->evm_saa9730_regs->InterruptStatus1 = %x\n",
 124                readl(&lp->evm_saa9730_regs->InterruptStatus1));
 125         printk("lp->evm_saa9730_regs->InterruptEnable1 = %x\n",
 126                readl(&lp->evm_saa9730_regs->InterruptEnable1));
 127         printk("lp->lan_saa9730_regs->Ok2Use = %x\n",
 128                readl(&lp->lan_saa9730_regs->Ok2Use));
 129         printk("lp->NextTxmBufferIndex = %x\n", lp->NextTxmBufferIndex);
 130         printk("lp->NextTxmPacketIndex = %x\n", lp->NextTxmPacketIndex);
 131         printk("lp->PendingTxmBufferIndex = %x\n",
 132                lp->PendingTxmBufferIndex);
 133         printk("lp->PendingTxmPacketIndex = %x\n",
 134                lp->PendingTxmPacketIndex);
 135         printk("lp->lan_saa9730_regs->LanDmaCtl = %x\n",
 136                readl(&lp->lan_saa9730_regs->LanDmaCtl));
 137         printk("lp->lan_saa9730_regs->DmaStatus = %x\n",
 138                readl(&lp->lan_saa9730_regs->DmaStatus));
 139         printk("lp->lan_saa9730_regs->CamCtl = %x\n",
 140                readl(&lp->lan_saa9730_regs->CamCtl));
 141         printk("lp->lan_saa9730_regs->TxCtl = %x\n",
 142                readl(&lp->lan_saa9730_regs->TxCtl));
 143         printk("lp->lan_saa9730_regs->TxStatus = %x\n",
 144                readl(&lp->lan_saa9730_regs->TxStatus));
 145         printk("lp->lan_saa9730_regs->RxCtl = %x\n",
 146                readl(&lp->lan_saa9730_regs->RxCtl));
 147         printk("lp->lan_saa9730_regs->RxStatus = %x\n",
 148                readl(&lp->lan_saa9730_regs->RxStatus));
 149         for (i = 0; i < LAN_SAA9730_CAM_DWORDS; i++) {
 150                 outl(i, &lp->lan_saa9730_regs->CamAddress);
 151                 printk("lp->lan_saa9730_regs->CamData = %x\n",
 152                        readl(&lp->lan_saa9730_regs->CamData));
 153         }
 154         printk("lp->stats.tx_packets = %lx\n", lp->stats.tx_packets);
 155         printk("lp->stats.tx_errors = %lx\n", lp->stats.tx_errors);
 156         printk("lp->stats.tx_aborted_errors = %lx\n",
 157                lp->stats.tx_aborted_errors);
 158         printk("lp->stats.tx_window_errors = %lx\n",
 159                lp->stats.tx_window_errors);
 160         printk("lp->stats.tx_carrier_errors = %lx\n",
 161                lp->stats.tx_carrier_errors);
 162         printk("lp->stats.tx_fifo_errors = %lx\n",
 163                lp->stats.tx_fifo_errors);
 164         printk("lp->stats.tx_heartbeat_errors = %lx\n",
 165                lp->stats.tx_heartbeat_errors);
 166         printk("lp->stats.collisions = %lx\n", lp->stats.collisions);
 167
 168         printk("lp->stats.rx_packets = %lx\n", lp->stats.rx_packets);
 169         printk("lp->stats.rx_errors = %lx\n", lp->stats.rx_errors);
 170         printk("lp->stats.rx_dropped = %lx\n", lp->stats.rx_dropped);
 171         printk("lp->stats.rx_crc_errors = %lx\n", lp->stats.rx_crc_errors);
 172         printk("lp->stats.rx_frame_errors = %lx\n",
 173                lp->stats.rx_frame_errors);
 174         printk("lp->stats.rx_fifo_errors = %lx\n",
 175                lp->stats.rx_fifo_errors);
 176         printk("lp->stats.rx_length_errors = %lx\n",
 177                lp->stats.rx_length_errors);
 178
 179         printk("lp->lan_saa9730_regs->DebugPCIMasterAddr = %x\n",
 180                readl(&lp->lan_saa9730_regs->DebugPCIMasterAddr));
 181         printk("lp->lan_saa9730_regs->DebugLanTxStateMachine = %x\n",
 182                readl(&lp->lan_saa9730_regs->DebugLanTxStateMachine));
 183         printk("lp->lan_saa9730_regs->DebugLanRxStateMachine = %x\n",
 184                readl(&lp->lan_saa9730_regs->DebugLanRxStateMachine));
 185         printk("lp->lan_saa9730_regs->DebugLanTxFifoPointers = %x\n",
 186                readl(&lp->lan_saa9730_regs->DebugLanTxFifoPointers));
 187         printk("lp->lan_saa9730_regs->DebugLanRxFifoPointers = %x\n",
 188                readl(&lp->lan_saa9730_regs->DebugLanRxFifoPointers));
 189         printk("lp->lan_saa9730_regs->DebugLanCtlStateMachine = %x\n",
 190                readl(&lp->lan_saa9730_regs->DebugLanCtlStateMachine));
 191 }
 192
 193 static void lan_saa9730_buffer_init(struct lan_saa9730_private *lp)
 194 {
 195         int i, j;
 196
 197         /* Init RX buffers */
 198         for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
 199                 for (j = 0; j < LAN_SAA9730_RCV_Q_SIZE; j++) {
 200                         *(unsigned int *) lp->RcvBuffer[i][j] =
 201                             cpu_to_le32(RXSF_READY <<
 202                                         RX_STAT_CTL_OWNER_SHF);
 203                 }
 204         }
 205
 206         /* Init TX buffers */
 207         for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
 208                 for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
 209                         *(unsigned int *) lp->TxmBuffer[i][j] =
 210                             cpu_to_le32(TXSF_EMPTY <<
 211                                         TX_STAT_CTL_OWNER_SHF);
 212                 }
 213         }
 214 }
 215
 216 static void lan_saa9730_free_buffers(struct pci_dev *pdev,
 217                                      struct lan_saa9730_private *lp)
 218 {
 219         pci_free_consistent(pdev, lp->buffer_size, lp->buffer_start,
 220                             lp->dma_addr);
 221 }
 222
 223 static int lan_saa9730_allocate_buffers(struct pci_dev *pdev,
 224                                         struct lan_saa9730_private *lp)
 225 {
 226         void *Pa;
 227         unsigned int i, j, rxoffset, txoffset;
 228         int ret;
 229
 230         /* Initialize buffer space */
 231         lp->DmaRcvPackets = LAN_SAA9730_RCV_Q_SIZE;
 232         lp->DmaTxmPackets = LAN_SAA9730_TXM_Q_SIZE;
 233
 234         /* Initialize Rx Buffer Index */
 235         lp->NextRcvPacketIndex = 0;
 236         lp->NextRcvBufferIndex = 0;
 237
 238         /* Set current buffer index & next available packet index */
 239         lp->NextTxmPacketIndex = 0;
 240         lp->NextTxmBufferIndex = 0;
 241         lp->PendingTxmPacketIndex = 0;
 242         lp->PendingTxmBufferIndex = 0;
 243
 244         /*
 245          * Allocate all RX and TX packets in one chunk.
 246          * The Rx and Tx packets must be PACKET_SIZE aligned.
 247          */
 248         lp->buffer_size = ((LAN_SAA9730_RCV_Q_SIZE + LAN_SAA9730_TXM_Q_SIZE) *
 249                            LAN_SAA9730_PACKET_SIZE * LAN_SAA9730_BUFFERS) +
 250                           LAN_SAA9730_PACKET_SIZE;
 251         lp->buffer_start = pci_alloc_consistent(pdev, lp->buffer_size,
 252                                                 &lp->dma_addr);
 253         if (!lp->buffer_start) {
 254                 ret = -ENOMEM;
 255                 goto out;
 256         }
 257
 258         Pa = (void *)ALIGN((unsigned long)lp->buffer_start,
 259                            LAN_SAA9730_PACKET_SIZE);
 260
 261         rxoffset = Pa - lp->buffer_start;
 262
 263         /* Init RX buffers */
 264         for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
 265                 for (j = 0; j < LAN_SAA9730_RCV_Q_SIZE; j++) {
 266                         *(unsigned int *) Pa =
 267                             cpu_to_le32(RXSF_READY <<
 268                                         RX_STAT_CTL_OWNER_SHF);
 269                         lp->RcvBuffer[i][j] = Pa;
 270                         Pa += LAN_SAA9730_PACKET_SIZE;
 271                 }
 272         }
 273
 274         txoffset = Pa - lp->buffer_start;
 275
 276         /* Init TX buffers */
 277         for (i = 0; i < LAN_SAA9730_BUFFERS; i++) {
 278                 for (j = 0; j < LAN_SAA9730_TXM_Q_SIZE; j++) {
 279                         *(unsigned int *) Pa =
 280                             cpu_to_le32(TXSF_EMPTY <<
 281                                         TX_STAT_CTL_OWNER_SHF);
 282                         lp->TxmBuffer[i][j] = Pa;
 283                         Pa += LAN_SAA9730_PACKET_SIZE;
 284                 }
 285         }
 286
 287         /*
 288          * Set rx buffer A and rx buffer B to point to the first two buffer
 289          * spaces.
 290          */
 291         outl(lp->dma_addr + rxoffset,
 292              &lp->lan_saa9730_regs->RxBuffA);
 293         outl(lp->dma_addr + rxoffset +
 294              LAN_SAA9730_PACKET_SIZE * LAN_SAA9730_RCV_Q_SIZE,
 295              &lp->lan_saa9730_regs->RxBuffB);
 296
 297         /*
 298          * Set txm_buf_a and txm_buf_b to point to the first two buffer
 299          * space
 300          */
 301         outl(lp->dma_addr + txoffset,
 302              &lp->lan_saa9730_regs->TxBuffA);
 303         outl(lp->dma_addr + txoffset +
 304              LAN_SAA9730_PACKET_SIZE * LAN_SAA9730_TXM_Q_SIZE,
 305              &lp->lan_saa9730_regs->TxBuffB);
 306
 307         /* Set packet number */
 308         outl((lp->DmaRcvPackets << PK_COUNT_RX_A_SHF) |
 309              (lp->DmaRcvPackets << PK_COUNT_RX_B_SHF) |
 310              (lp->DmaTxmPackets << PK_COUNT_TX_A_SHF) |
 311              (lp->DmaTxmPackets << PK_COUNT_TX_B_SHF),
 312              &lp->lan_saa9730_regs->PacketCount);
 313
 314         return 0;
 315
 316 out:
 317         return ret;
 318 }
 319
 320 static int lan_saa9730_cam_load(struct lan_saa9730_private *lp)
 321 {
 322         unsigned int i;
 323         unsigned char *NetworkAddress;
 324
 325         NetworkAddress = (unsigned char *) &lp->PhysicalAddress[0][0];
 326
 327         for (i = 0; i < LAN_SAA9730_CAM_DWORDS; i++) {
 328                 /* First set address to where data is written */
 329                 outl(i, &lp->lan_saa9730_regs->CamAddress);
 330                 outl((NetworkAddress[0] << 24) | (NetworkAddress[1] << 16)
 331                      | (NetworkAddress[2] << 8) | NetworkAddress[3],
 332                      &lp->lan_saa9730_regs->CamData);
 333                 NetworkAddress += 4;
 334         }
 335         return 0;
 336 }
 337
 338 static int lan_saa9730_cam_init(struct net_device *dev)
 339 {
 340         struct lan_saa9730_private *lp = netdev_priv(dev);
 341         unsigned int i;
 342
 343         /* Copy MAC-address into all entries. */
 344         for (i = 0; i < LAN_SAA9730_CAM_ENTRIES; i++) {
 345                 memcpy((unsigned char *) lp->PhysicalAddress[i],
 346                        (unsigned char *) dev->dev_addr, 6);
 347         }
 348
 349         return 0;
 350 }
 351
 352 static int lan_saa9730_mii_init(struct lan_saa9730_private *lp)
 353 {
 354         int i, l;
 355
 356         /* Check link status, spin here till station is not busy. */
 357         i = 0;
 358         while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) & MD_CA_BUSY) {
 359                 i++;
 360                 if (i > 100) {
 361                         printk("Error: lan_saa9730_mii_init: timeout\n");
 362                         return -1;
 363                 }
 364                 mdelay(1);      /* wait 1 ms. */
 365         }
 366
 367         /* Now set the control and address register. */
 368         outl(MD_CA_BUSY | PHY_STATUS | PHY_ADDRESS << MD_CA_PHY_SHF,
 369              &lp->lan_saa9730_regs->StationMgmtCtl);
 370
 371         /* check link status, spin here till station is not busy */
 372         i = 0;
 373         while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) & MD_CA_BUSY) {
 374                 i++;
 375                 if (i > 100) {
 376                         printk("Error: lan_saa9730_mii_init: timeout\n");
 377                         return -1;
 378                 }
 379                 mdelay(1);      /* wait 1 ms. */
 380         }
 381
 382         /* Wait for 1 ms. */
 383         mdelay(1);
 384
 385         /* Check the link status. */
 386         if (readl(&lp->lan_saa9730_regs->StationMgmtData) &
 387             PHY_STATUS_LINK_UP) {
 388                 /* Link is up. */
 389                 return 0;
 390         } else {
 391                 /* Link is down, reset the PHY first. */
 392
 393                 /* set PHY address = 'CONTROL' */
 394                 outl(PHY_ADDRESS << MD_CA_PHY_SHF | MD_CA_WR | PHY_CONTROL,
 395                      &lp->lan_saa9730_regs->StationMgmtCtl);
 396
 397                 /* Wait for 1 ms. */
 398                 mdelay(1);
 399
 400                 /* set 'CONTROL' = force reset and renegotiate */
 401                 outl(PHY_CONTROL_RESET | PHY_CONTROL_AUTO_NEG |
 402                      PHY_CONTROL_RESTART_AUTO_NEG,
 403                      &lp->lan_saa9730_regs->StationMgmtData);
 404
 405                 /* Wait for 50 ms. */
 406                 mdelay(50);
 407
 408                 /* set 'BUSY' to start operation */
 409                 outl(MD_CA_BUSY | PHY_ADDRESS << MD_CA_PHY_SHF | MD_CA_WR |
 410                      PHY_CONTROL, &lp->lan_saa9730_regs->StationMgmtCtl);
 411
 412                 /* await completion */
 413                 i = 0;
 414                 while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) &
 415                        MD_CA_BUSY) {
 416                         i++;
 417                         if (i > 100) {
 418                                 printk
 419                                     ("Error: lan_saa9730_mii_init: timeout\n");
 420                                 return -1;
 421                         }
 422                         mdelay(1);      /* wait 1 ms. */
 423                 }
 424
 425                 /* Wait for 1 ms. */
 426                 mdelay(1);
 427
 428                 for (l = 0; l < 2; l++) {
 429                         /* set PHY address = 'STATUS' */
 430                         outl(MD_CA_BUSY | PHY_ADDRESS << MD_CA_PHY_SHF |
 431                              PHY_STATUS,
 432                              &lp->lan_saa9730_regs->StationMgmtCtl);
 433
 434                         /* await completion */
 435                         i = 0;
 436                         while (readl(&lp->lan_saa9730_regs->StationMgmtCtl) &
 437                                MD_CA_BUSY) {
 438                                 i++;
 439                                 if (i > 100) {
 440                                         printk
 441                                             ("Error: lan_saa9730_mii_init: timeout\n");
 442                                         return -1;
 443                                 }
 444                                 mdelay(1);      /* wait 1 ms. */
 445                         }
 446
 447                         /* wait for 3 sec. */
 448                         mdelay(3000);
 449
 450                         /* check the link status */
 451                         if (readl(&lp->lan_saa9730_regs->StationMgmtData) &
 452                             PHY_STATUS_LINK_UP) {
 453                                 /* link is up */
 454                                 break;
 455                         }
 456                 }
 457         }
 458
 459         return 0;
 460 }
 461
 462 static int lan_saa9730_control_init(struct lan_saa9730_private *lp)
 463 {
 464         /* Initialize DMA control register. */
 465         outl((LANMB_ANY << DMA_CTL_MAX_XFER_SHF) |
 466              (LANEND_LITTLE << DMA_CTL_ENDIAN_SHF) |
 467              (LAN_SAA9730_RCV_Q_INT_THRESHOLD << DMA_CTL_RX_INT_COUNT_SHF)
 468              | DMA_CTL_RX_INT_TO_EN | DMA_CTL_RX_INT_EN |
 469              DMA_CTL_MAC_RX_INT_EN | DMA_CTL_MAC_TX_INT_EN,
 470              &lp->lan_saa9730_regs->LanDmaCtl);
 471
 472         /* Initial MAC control register. */
 473         outl((MACCM_MII << MAC_CONTROL_CONN_SHF) | MAC_CONTROL_FULL_DUP,
 474              &lp->lan_saa9730_regs->MacCtl);
 475
 476         /* Initialize CAM control register. */
 477         outl(CAM_CONTROL_COMP_EN | CAM_CONTROL_BROAD_ACC,
 478              &lp->lan_saa9730_regs->CamCtl);
 479
 480         /*
 481          * Initialize CAM enable register, only turn on first entry, should
 482          * contain own addr.
 483          */
 484         outl(0x0001, &lp->lan_saa9730_regs->CamEnable);
 485
 486         /* Initialize Tx control register */
 487         outl(TX_CTL_EN_COMP, &lp->lan_saa9730_regs->TxCtl);
 488
 489         /* Initialize Rcv control register */
 490         outl(RX_CTL_STRIP_CRC, &lp->lan_saa9730_regs->RxCtl);
 491
 492         /* Reset DMA engine */
 493         outl(DMA_TEST_SW_RESET, &lp->lan_saa9730_regs->DmaTest);
 494
 495         return 0;
 496 }
 497
 498 static int lan_saa9730_stop(struct lan_saa9730_private *lp)
 499 {
 500         int i;
 501
 502         /* Stop DMA first */
 503         outl(readl(&lp->lan_saa9730_regs->LanDmaCtl) &
 504              ~(DMA_CTL_EN_TX_DMA | DMA_CTL_EN_RX_DMA),
 505              &lp->lan_saa9730_regs->LanDmaCtl);
 506
 507         /* Set the SW Reset bits in DMA and MAC control registers */
 508         outl(DMA_TEST_SW_RESET, &lp->lan_saa9730_regs->DmaTest);
 509         outl(readl(&lp->lan_saa9730_regs->MacCtl) | MAC_CONTROL_RESET,
 510              &lp->lan_saa9730_regs->MacCtl);
 511
 512         /*
 513          * Wait for MAC reset to have finished. The reset bit is auto cleared
 514          * when the reset is done.
 515          */
 516         i = 0;
 517         while (readl(&lp->lan_saa9730_regs->MacCtl) & MAC_CONTROL_RESET) {
 518                 i++;
 519                 if (i > 100) {
 520                         printk
 521                             ("Error: lan_sa9730_stop: MAC reset timeout\n");
 522                         return -1;
 523                 }
 524                 mdelay(1);      /* wait 1 ms. */
 525         }
 526
 527         return 0;
 528 }
 529
 530 static int lan_saa9730_dma_init(struct lan_saa9730_private *lp)
 531 {
 532         /* Stop lan controller. */
 533         lan_saa9730_stop(lp);
 534
 535         outl(LAN_SAA9730_DEFAULT_TIME_OUT_CNT,
 536              &lp->lan_saa9730_regs->Timeout);
 537
 538         return 0;
 539 }
 540
 541 static int lan_saa9730_start(struct lan_saa9730_private *lp)
 542 {
 543         lan_saa9730_buffer_init(lp);
 544
 545         /* Initialize Rx Buffer Index */
 546         lp->NextRcvPacketIndex = 0;
 547         lp->NextRcvBufferIndex = 0;
 548
 549         /* Set current buffer index & next available packet index */
 550         lp->NextTxmPacketIndex = 0;
 551         lp->NextTxmBufferIndex = 0;
 552         lp->PendingTxmPacketIndex = 0;
 553         lp->PendingTxmBufferIndex = 0;
 554
 555         outl(readl(&lp->lan_saa9730_regs->LanDmaCtl) | DMA_CTL_EN_TX_DMA |
 556              DMA_CTL_EN_RX_DMA, &lp->lan_saa9730_regs->LanDmaCtl);
 557
 558         /* For Tx, turn on MAC then DMA */
 559         outl(readl(&lp->lan_saa9730_regs->TxCtl) | TX_CTL_TX_EN,
 560              &lp->lan_saa9730_regs->TxCtl);
 561
 562         /* For Rx, turn on DMA then MAC */
 563         outl(readl(&lp->lan_saa9730_regs->RxCtl) | RX_CTL_RX_EN,
 564              &lp->lan_saa9730_regs->RxCtl);
 565
 566         /* Set Ok2Use to let hardware own the buffers.  */
 567         outl(OK2USE_RX_A | OK2USE_RX_B, &lp->lan_saa9730_regs->Ok2Use);
 568
 569         return 0;
 570 }
 571
 572 static int lan_saa9730_restart(struct lan_saa9730_private *lp)
 573 {
 574         lan_saa9730_stop(lp);
 575         lan_saa9730_start(lp);
 576
 577         return 0;
 578 }
 579
 580 static int lan_saa9730_tx(struct net_device *dev)
 581 {
 582         struct lan_saa9730_private *lp = netdev_priv(dev);
 583         unsigned int *pPacket;
 584         unsigned int tx_status;
 585
 586         if (lan_saa9730_debug > 5)
 587                 printk("lan_saa9730_tx interrupt\n");
 588
 589         /* Clear interrupt. */
 590         outl(DMA_STATUS_MAC_TX_INT, &lp->lan_saa9730_regs->DmaStatus);
 591
 592         while (1) {
 593                 pPacket = lp->TxmBuffer[lp->PendingTxmBufferIndex]
 594                                        [lp->PendingTxmPacketIndex];
 595
 596                 /* Get status of first packet transmitted. */
 597                 tx_status = le32_to_cpu(*pPacket);
 598
 599                 /* Check ownership. */
 600                 if ((tx_status & TX_STAT_CTL_OWNER_MSK) !=
 601                     (TXSF_HWDONE << TX_STAT_CTL_OWNER_SHF)) break;
 602
 603                 /* Check for error. */
 604                 if (tx_status & TX_STAT_CTL_ERROR_MSK) {
 605                         if (lan_saa9730_debug > 1)
 606                                 printk("lan_saa9730_tx: tx error = %x\n",
 607                                        tx_status);
 608
 609                         lp->stats.tx_errors++;
 610                         if (tx_status &
 611                             (TX_STATUS_EX_COLL << TX_STAT_CTL_STATUS_SHF))
 612                                 lp->stats.tx_aborted_errors++;
 613                         if (tx_status &
 614                             (TX_STATUS_LATE_COLL << TX_STAT_CTL_STATUS_SHF))
 615                                 lp->stats.tx_window_errors++;
 616                         if (tx_status &
 617                             (TX_STATUS_L_CARR << TX_STAT_CTL_STATUS_SHF))
 618                                 lp->stats.tx_carrier_errors++;
 619                         if (tx_status &
 620                             (TX_STATUS_UNDER << TX_STAT_CTL_STATUS_SHF))
 621                                 lp->stats.tx_fifo_errors++;
 622                         if (tx_status &
 623                             (TX_STATUS_SQ_ERR << TX_STAT_CTL_STATUS_SHF))
 624                                 lp->stats.tx_heartbeat_errors++;
 625
 626                         lp->stats.collisions +=
 627                                 tx_status & TX_STATUS_TX_COLL_MSK;
 628                 }
 629
 630                 /* Free buffer. */
 631                 *pPacket =
 632                     cpu_to_le32(TXSF_EMPTY << TX_STAT_CTL_OWNER_SHF);
 633
 634                 /* Update pending index pointer. */
 635                 lp->PendingTxmPacketIndex++;
 636                 if (lp->PendingTxmPacketIndex >= LAN_SAA9730_TXM_Q_SIZE) {
 637                         lp->PendingTxmPacketIndex = 0;
 638                         lp->PendingTxmBufferIndex ^= 1;
 639                 }
 640         }
 641
 642         /* The tx buffer is no longer full. */
 643         netif_wake_queue(dev);
 644
 645         return 0;
 646 }
 647
 648 static int lan_saa9730_rx(struct net_device *dev)
 649 {
 650         struct lan_saa9730_private *lp = netdev_priv(dev);
 651         int len = 0;
 652         struct sk_buff *skb = 0;
 653         unsigned int rx_status;
 654         int BufferIndex;
 655         int PacketIndex;
 656         unsigned int *pPacket;
 657         unsigned char *pData;
 658
 659         if (lan_saa9730_debug > 5)
 660                 printk("lan_saa9730_rx interrupt\n");
 661
 662         /* Clear receive interrupts. */
 663         outl(DMA_STATUS_MAC_RX_INT | DMA_STATUS_RX_INT |
 664              DMA_STATUS_RX_TO_INT, &lp->lan_saa9730_regs->DmaStatus);
 665
 666         /* Address next packet */
 667         BufferIndex = lp->NextRcvBufferIndex;
 668         PacketIndex = lp->NextRcvPacketIndex;
 669         pPacket = lp->RcvBuffer[BufferIndex][PacketIndex];
 670         rx_status = le32_to_cpu(*pPacket);
 671
 672         /* Process each packet. */
 673         while ((rx_status & RX_STAT_CTL_OWNER_MSK) ==
 674                (RXSF_HWDONE << RX_STAT_CTL_OWNER_SHF)) {
 675                 /* Check the rx status. */
 676                 if (rx_status & (RX_STATUS_GOOD << RX_STAT_CTL_STATUS_SHF)) {
 677                         /* Received packet is good. */
 678                         len = (rx_status & RX_STAT_CTL_LENGTH_MSK) >>
 679                             RX_STAT_CTL_LENGTH_SHF;
 680
 681                         pData = (unsigned char *) pPacket;
 682                         pData += 4;
 683                         skb = dev_alloc_skb(len + 2);
 684                         if (skb == 0) {
 685                                 printk
 686                                     ("%s: Memory squeeze, deferring packet.\n",
 687                                      dev->name);
 688                                 lp->stats.rx_dropped++;
 689                         } else {
 690                                 lp->stats.rx_bytes += len;
 691                                 lp->stats.rx_packets++;
 692                                 skb->dev = dev;
 693                                 skb_reserve(skb, 2);    /* 16 byte align */
 694                                 skb_put(skb, len);      /* make room */
 695                                 eth_copy_and_sum(skb,
 696                                                  (unsigned char *) pData,
 697                                                  len, 0);
 698                                 skb->protocol = eth_type_trans(skb, dev);
 699                                 netif_rx(skb);
 700                                 dev->last_rx = jiffies;
 701                         }
 702                 } else {
 703                         /* We got an error packet. */
 704                         if (lan_saa9730_debug > 2)
 705                                 printk
 706                                     ("lan_saa9730_rx: We got an error packet = %x\n",
 707                                      rx_status);
 708
 709                         lp->stats.rx_errors++;
 710                         if (rx_status &
 711                             (RX_STATUS_CRC_ERR << RX_STAT_CTL_STATUS_SHF))
 712                                 lp->stats.rx_crc_errors++;
 713                         if (rx_status &
 714                             (RX_STATUS_ALIGN_ERR << RX_STAT_CTL_STATUS_SHF))
 715                                 lp->stats.rx_frame_errors++;
 716                         if (rx_status &
 717                             (RX_STATUS_OVERFLOW << RX_STAT_CTL_STATUS_SHF))
 718                                 lp->stats.rx_fifo_errors++;
 719                         if (rx_status &
 720                             (RX_STATUS_LONG_ERR << RX_STAT_CTL_STATUS_SHF))
 721                                 lp->stats.rx_length_errors++;
 722                 }
 723
 724                 /* Indicate we have processed the buffer. */
 725                 *pPacket = cpu_to_le32(RXSF_READY << RX_STAT_CTL_OWNER_SHF);
 726
 727                 /* Make sure A or B is available to hardware as appropriate. */
 728                 outl(BufferIndex ? OK2USE_RX_B : OK2USE_RX_A,
 729                      &lp->lan_saa9730_regs->Ok2Use);
 730
 731                 /* Go to next packet in sequence. */
 732                 lp->NextRcvPacketIndex++;
 733                 if (lp->NextRcvPacketIndex >= LAN_SAA9730_RCV_Q_SIZE) {
 734                         lp->NextRcvPacketIndex = 0;
 735                         lp->NextRcvBufferIndex ^= 1;
 736                 }
 737
 738                 /* Address next packet */
 739                 BufferIndex = lp->NextRcvBufferIndex;
 740                 PacketIndex = lp->NextRcvPacketIndex;
 741                 pPacket = lp->RcvBuffer[BufferIndex][PacketIndex];
 742                 rx_status = le32_to_cpu(*pPacket);
 743         }
 744
 745         return 0;
 746 }
 747
 748 static irqreturn_t lan_saa9730_interrupt(const int irq, void *dev_id)
 749 {
 750         struct net_device *dev = dev_id;
 751         struct lan_saa9730_private *lp = netdev_priv(dev);
 752
 753         if (lan_saa9730_debug > 5)
 754                 printk("lan_saa9730_interrupt\n");
 755
 756         /* Disable the EVM LAN interrupt. */
 757         evm_saa9730_block_lan_int(lp);
 758
 759         /* Clear the EVM LAN interrupt. */
 760         evm_saa9730_clear_lan_int(lp);
 761
 762         /* Service pending transmit interrupts. */
 763         if (readl(&lp->lan_saa9730_regs->DmaStatus) & DMA_STATUS_MAC_TX_INT)
 764                 lan_saa9730_tx(dev);
 765
 766         /* Service pending receive interrupts. */
 767         if (readl(&lp->lan_saa9730_regs->DmaStatus) &
 768             (DMA_STATUS_MAC_RX_INT | DMA_STATUS_RX_INT |
 769              DMA_STATUS_RX_TO_INT)) lan_saa9730_rx(dev);
 770
 771         /* Enable the EVM LAN interrupt. */
 772         evm_saa9730_unblock_lan_int(lp);
 773
 774         return IRQ_HANDLED;
 775 }
 776
 777 static int lan_saa9730_open(struct net_device *dev)
 778 {
 779         struct lan_saa9730_private *lp = netdev_priv(dev);
 780
 781         /* Associate IRQ with lan_saa9730_interrupt */
 782         if (request_irq(dev->irq, &lan_saa9730_interrupt, 0, "SAA9730 Eth",
 783                         dev)) {
 784                 printk("lan_saa9730_open: Can't get irq %d\n", dev->irq);
 785                 return -EAGAIN;
 786         }
 787
 788         /* Enable the Lan interrupt in the event manager. */
 789         evm_saa9730_enable_lan_int(lp);
 790
 791         /* Start the LAN controller */
 792         if (lan_saa9730_start(lp))
 793                 return -1;
 794
 795         netif_start_queue(dev);
 796
 797         return 0;
 798 }
 799
 800 static int lan_saa9730_write(struct lan_saa9730_private *lp,
 801                              struct sk_buff *skb, int skblen)
 802 {
 803         unsigned char *pbData = skb->data;
 804         unsigned int len = skblen;
 805         unsigned char *pbPacketData;
 806         unsigned int tx_status;
 807         int BufferIndex;
 808         int PacketIndex;
 809
 810         if (lan_saa9730_debug > 5)
 811                 printk("lan_saa9730_write: skb=%p\n", skb);
 812
 813         BufferIndex = lp->NextTxmBufferIndex;
 814         PacketIndex = lp->NextTxmPacketIndex;
 815
 816         tx_status = le32_to_cpu(*(unsigned int *)lp->TxmBuffer[BufferIndex]
 817                                                               [PacketIndex]);
 818         if ((tx_status & TX_STAT_CTL_OWNER_MSK) !=
 819             (TXSF_EMPTY << TX_STAT_CTL_OWNER_SHF)) {
 820                 if (lan_saa9730_debug > 4)
 821                         printk
 822                             ("lan_saa9730_write: Tx buffer not available: tx_status = %x\n",
 823                              tx_status);
 824                 return -1;
 825         }
 826
 827         lp->NextTxmPacketIndex++;
 828         if (lp->NextTxmPacketIndex >= LAN_SAA9730_TXM_Q_SIZE) {
 829                 lp->NextTxmPacketIndex = 0;
 830                 lp->NextTxmBufferIndex ^= 1;
 831         }
 832
 833         pbPacketData = lp->TxmBuffer[BufferIndex][PacketIndex];
 834         pbPacketData += 4;
 835
 836         /* copy the bits */
 837         memcpy(pbPacketData, pbData, len);
 838
 839         /* Set transmit status for hardware */
 840         *(unsigned int *)lp->TxmBuffer[BufferIndex][PacketIndex] =
 841                 cpu_to_le32((TXSF_READY << TX_STAT_CTL_OWNER_SHF) |
 842                             (TX_STAT_CTL_INT_AFTER_TX <<
 843                              TX_STAT_CTL_FRAME_SHF) |
 844                             (len << TX_STAT_CTL_LENGTH_SHF));
 845
 846         /* Make sure A or B is available to hardware as appropriate. */
 847         outl(BufferIndex ? OK2USE_TX_B : OK2USE_TX_A,
 848              &lp->lan_saa9730_regs->Ok2Use);
 849
 850         return 0;
 851 }
 852
 853 static void lan_saa9730_tx_timeout(struct net_device *dev)
 854 {
 855         struct lan_saa9730_private *lp = netdev_priv(dev);
 856
 857         /* Transmitter timeout, serious problems */
 858         lp->stats.tx_errors++;
 859         printk("%s: transmit timed out, reset\n", dev->name);
 860         /*show_saa9730_regs(lp); */
 861         lan_saa9730_restart(lp);
 862
 863         dev->trans_start = jiffies;
 864         netif_wake_queue(dev);
 865 }
 866
 867 static int lan_saa9730_start_xmit(struct sk_buff *skb,
 868                                   struct net_device *dev)
 869 {
 870         struct lan_saa9730_private *lp = netdev_priv(dev);
 871         unsigned long flags;
 872         int skblen;
 873         int len;
 874
 875         if (lan_saa9730_debug > 4)
 876                 printk("Send packet: skb=%p\n", skb);
 877
 878         skblen = skb->len;
 879
 880         spin_lock_irqsave(&lp->lock, flags);
 881
 882         len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
 883
 884         if (lan_saa9730_write(lp, skb, skblen)) {
 885                 spin_unlock_irqrestore(&lp->lock, flags);
 886                 printk("Error when writing packet to controller: skb=%p\n", skb);
 887                 netif_stop_queue(dev);
 888                 return -1;
 889         }
 890
 891         lp->stats.tx_bytes += len;
 892         lp->stats.tx_packets++;
 893
 894         dev->trans_start = jiffies;
 895         netif_wake_queue(dev);
 896         dev_kfree_skb(skb);
 897
 898         spin_unlock_irqrestore(&lp->lock, flags);
 899
 900         return 0;
 901 }
 902
 903 static int lan_saa9730_close(struct net_device *dev)
 904 {
 905         struct lan_saa9730_private *lp = netdev_priv(dev);
 906
 907         if (lan_saa9730_debug > 1)
 908                 printk("lan_saa9730_close:\n");
 909
 910         netif_stop_queue(dev);
 911
 912         /* Disable the Lan interrupt in the event manager. */
 913         evm_saa9730_disable_lan_int(lp);
 914
 915         /* Stop the controller */
 916         if (lan_saa9730_stop(lp))
 917                 return -1;
 918
 919         free_irq(dev->irq, (void *) dev);
 920
 921         return 0;
 922 }
 923
 924 static struct net_device_stats *lan_saa9730_get_stats(struct net_device
 925                                                       *dev)
 926 {
 927         struct lan_saa9730_private *lp = netdev_priv(dev);
 928
 929         return &lp->stats;
 930 }
 931
 932 static void lan_saa9730_set_multicast(struct net_device *dev)
 933 {
 934         struct lan_saa9730_private *lp = netdev_priv(dev);
 935
 936         /* Stop the controller */
 937         lan_saa9730_stop(lp);
 938
 939         if (dev->flags & IFF_PROMISC) {
 940                 /* accept all packets */
 941                 outl(CAM_CONTROL_COMP_EN | CAM_CONTROL_STATION_ACC |
 942                      CAM_CONTROL_GROUP_ACC | CAM_CONTROL_BROAD_ACC,
 943                      &lp->lan_saa9730_regs->CamCtl);
 944         } else {
 945                 if (dev->flags & IFF_ALLMULTI) {
 946                         /* accept all multicast packets */
 947                         outl(CAM_CONTROL_COMP_EN | CAM_CONTROL_GROUP_ACC |
 948                              CAM_CONTROL_BROAD_ACC,
 949                              &lp->lan_saa9730_regs->CamCtl);
 950                 } else {
 951                         /*
 952                          * Will handle the multicast stuff later. -carstenl
 953                          */
 954                 }
 955         }
 956
 957         lan_saa9730_restart(lp);
 958 }
 959
 960
 961 static void __devexit saa9730_remove_one(struct pci_dev *pdev)
 962 {
 963         struct net_device *dev = pci_get_drvdata(pdev);
 964         struct lan_saa9730_private *lp = netdev_priv(dev);
 965
 966         if (dev) {
 967                 unregister_netdev(dev);
 968                 lan_saa9730_free_buffers(pdev, lp);
 969                 iounmap(lp->lan_saa9730_regs);
 970                 iounmap(lp->evm_saa9730_regs);
 971                 free_netdev(dev);
 972                 pci_release_regions(pdev);
 973                 pci_disable_device(pdev);
 974                 pci_set_drvdata(pdev, NULL);
 975         }
 976 }
 977
 978
 979 static int lan_saa9730_init(struct net_device *dev, struct pci_dev *pdev,
 980         unsigned long ioaddr, int irq)
 981 {
 982         struct lan_saa9730_private *lp = netdev_priv(dev);
 983         unsigned char ethernet_addr[6];
 984         int ret;
 985
 986         if (get_ethernet_addr(ethernet_addr)) {
 987                 ret = -ENODEV;
 988                 goto out;
 989         }
 990
 991         memcpy(dev->dev_addr, ethernet_addr, 6);
 992         dev->base_addr = ioaddr;
 993         dev->irq = irq;
 994
 995         lp->pci_dev = pdev;
 996
 997         /* Set SAA9730 LAN base address. */
 998         lp->lan_saa9730_regs = ioremap(ioaddr + SAA9730_LAN_REGS_ADDR,
 999                                        SAA9730_LAN_REGS_SIZE);
1000         if (!lp->lan_saa9730_regs) {
1001                 ret = -ENOMEM;
1002                 goto out;
1003         }
1004
1005         /* Set SAA9730 EVM base address. */
1006         lp->evm_saa9730_regs = ioremap(ioaddr + SAA9730_EVM_REGS_ADDR,
1007                                        SAA9730_EVM_REGS_SIZE);
1008         if (!lp->evm_saa9730_regs) {
1009                 ret = -ENOMEM;
1010                 goto out_iounmap_lan;
1011         }
1012
1013         /* Allocate LAN RX/TX frame buffer space. */
1014         if ((ret = lan_saa9730_allocate_buffers(pdev, lp)))
1015                 goto out_iounmap;
1016
1017         /* Stop LAN controller. */
1018         if ((ret = lan_saa9730_stop(lp)))
1019                 goto out_free_consistent;
1020
1021         /* Initialize CAM registers. */
1022         if ((ret = lan_saa9730_cam_init(dev)))
1023                 goto out_free_consistent;
1024
1025         /* Initialize MII registers. */
1026         if ((ret = lan_saa9730_mii_init(lp)))
1027                 goto out_free_consistent;
1028
1029         /* Initialize control registers. */
1030         if ((ret = lan_saa9730_control_init(lp)))
1031                 goto out_free_consistent;
1032
1033         /* Load CAM registers. */
1034         if ((ret = lan_saa9730_cam_load(lp)))
1035                 goto out_free_consistent;
1036
1037         /* Initialize DMA context registers. */
1038         if ((ret = lan_saa9730_dma_init(lp)))
1039                 goto out_free_consistent;
1040
1041         spin_lock_init(&lp->lock);
1042
1043         dev->open = lan_saa9730_open;
1044         dev->hard_start_xmit = lan_saa9730_start_xmit;
1045         dev->stop = lan_saa9730_close;
1046         dev->get_stats = lan_saa9730_get_stats;
1047         dev->set_multicast_list = lan_saa9730_set_multicast;
1048         dev->tx_timeout = lan_saa9730_tx_timeout;
1049         dev->watchdog_timeo = (HZ >> 1);
1050         dev->dma = 0;
1051
1052         ret = register_netdev (dev);
1053         if (ret)
1054                 goto out_free_consistent;
1055
1056         return 0;
1057
1058 out_free_consistent:
1059         lan_saa9730_free_buffers(pdev, lp);
1060 out_iounmap:
1061         iounmap(lp->evm_saa9730_regs);
1062 out_iounmap_lan:
1063         iounmap(lp->lan_saa9730_regs);
1064 out:
1065         return ret;
1066 }
1067
1068
1069 static int __devinit saa9730_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1070 {
1071         struct net_device *dev = NULL;
1072         unsigned long pci_ioaddr;
1073         int err;
1074
1075         if (lan_saa9730_debug > 1)
1076                 printk("saa9730.c: PCI bios is present, checking for devices...\n");
1077
1078         err = pci_enable_device(pdev);
1079         if (err) {
1080                 printk(KERN_ERR "Cannot enable PCI device, aborting.\n");
1081                 goto out;
1082         }
1083
1084         err = pci_request_regions(pdev, DRV_MODULE_NAME);
1085         if (err) {
1086                 printk(KERN_ERR "Cannot obtain PCI resources, aborting.\n");
1087                 goto out_disable_pdev;
1088         }
1089
1090         pci_irq_line = pdev->irq;
1091         /* LAN base address in located at BAR 1. */
1092
1093         pci_ioaddr = pci_resource_start(pdev, 1);
1094         pci_set_master(pdev);
1095
1096         printk("Found SAA9730 (PCI) at %lx, irq %d.\n",
1097                pci_ioaddr, pci_irq_line);
1098
1099         dev = alloc_etherdev(sizeof(struct lan_saa9730_private));
1100         if (!dev)
1101                 goto out_disable_pdev;
1102
1103         err = lan_saa9730_init(dev, pdev, pci_ioaddr, pci_irq_line);
1104         if (err) {
1105                 printk("LAN init failed");
1106                 goto out_free_netdev;
1107         }
1108
1109         pci_set_drvdata(pdev, dev);
1110         SET_NETDEV_DEV(dev, &pdev->dev);
1111         return 0;
1112
1113 out_free_netdev:
1114         free_netdev(dev);
1115 out_disable_pdev:
1116         pci_disable_device(pdev);
1117 out:
1118         pci_set_drvdata(pdev, NULL);
1119         return err;
1120 }
1121
1122
1123 static struct pci_driver saa9730_driver = {
1124         .name           = DRV_MODULE_NAME,
1125         .id_table       = saa9730_pci_tbl,
1126         .probe          = saa9730_init_one,
1127         .remove         = __devexit_p(saa9730_remove_one),
1128 };
1129
1130
1131 static int __init saa9730_init(void)
1132 {
1133         return pci_register_driver(&saa9730_driver);
1134 }
1135
1136 static void __exit saa9730_cleanup(void)
1137 {
1138         pci_unregister_driver(&saa9730_driver);
1139 }
1140
1141 module_init(saa9730_init);
1142 module_exit(saa9730_cleanup);
1143
1144 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
1145 MODULE_DESCRIPTION("Philips SAA9730 ethernet driver");
1146 MODULE_LICENSE("GPL");