drivers/ide/via82cxxx.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * VIA IDE driver for Linux. Supported southbridges:
   4  *
   5  *   vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b,
   6  *   vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a,
   7  *   vt8235, vt8237, vt8237a
   8  *
   9  * Copyright (c) 2000-2002 Vojtech Pavlik
  10  * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz
  11  *
  12  * Based on the work of:
  13  *      Michel Aubry
  14  *      Jeff Garzik
  15  *      Andre Hedrick
  16  *
  17  * Documentation:
  18  *      Obsolete device documentation publicly available from via.com.tw
  19  *      Current device documentation available under NDA only
  20  */
  21
  22
  23 #include <linux/module.h>
  24 #include <linux/kernel.h>
  25 #include <linux/slab.h>
  26 #include <linux/pci.h>
  27 #include <linux/init.h>
  28 #include <linux/ide.h>
  29 #include <linux/dmi.h>
  30
  31 #ifdef CONFIG_PPC_CHRP
  32 #include <asm/processor.h>
  33 #endif
  34
  35 #define DRV_NAME "via82cxxx"
  36
  37 #define VIA_IDE_ENABLE          0x40
  38 #define VIA_IDE_CONFIG          0x41
  39 #define VIA_FIFO_CONFIG         0x43
  40 #define VIA_MISC_1              0x44
  41 #define VIA_MISC_2              0x45
  42 #define VIA_MISC_3              0x46
  43 #define VIA_DRIVE_TIMING        0x48
  44 #define VIA_8BIT_TIMING         0x4e
  45 #define VIA_ADDRESS_SETUP       0x4c
  46 #define VIA_UDMA_TIMING         0x50
  47
  48 #define VIA_BAD_PREQ            0x01 /* Crashes if PREQ# till DDACK# set */
  49 #define VIA_BAD_CLK66           0x02 /* 66 MHz clock doesn't work correctly */
  50 #define VIA_SET_FIFO            0x04 /* Needs to have FIFO split set */
  51 #define VIA_NO_UNMASK           0x08 /* Doesn't work with IRQ unmasking on */
  52 #define VIA_BAD_ID              0x10 /* Has wrong vendor ID (0x1107) */
  53 #define VIA_BAD_AST             0x20 /* Don't touch Address Setup Timing */
  54 #define VIA_SATA_PATA           0x80 /* SATA/PATA combined configuration */
  55
  56 enum {
  57         VIA_IDFLAG_SINGLE = (1 << 1), /* single channel controller */
  58 };
  59
  60 /*
  61  * VIA SouthBridge chips.
  62  */
  63
  64 static struct via_isa_bridge {
  65         char *name;
  66         u16 id;
  67         u8 rev_min;
  68         u8 rev_max;
  69         u8 udma_mask;
  70         u8 flags;
  71 } via_isa_bridges[] = {
  72         { "vx855",      PCI_DEVICE_ID_VIA_VX855,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA },
  73         { "vx800",      PCI_DEVICE_ID_VIA_VX800,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA },
  74         { "cx700",      PCI_DEVICE_ID_VIA_CX700,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA },
  75         { "vt8261",     PCI_DEVICE_ID_VIA_8261,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  76         { "vt8237s",    PCI_DEVICE_ID_VIA_8237S,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  77         { "vt6410",     PCI_DEVICE_ID_VIA_6410,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  78         { "vt6415",     PCI_DEVICE_ID_VIA_6415,     0x00, 0xff, ATA_UDMA6, VIA_BAD_AST },
  79         { "vt8251",     PCI_DEVICE_ID_VIA_8251,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  80         { "vt8237",     PCI_DEVICE_ID_VIA_8237,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  81         { "vt8237a",    PCI_DEVICE_ID_VIA_8237A,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  82         { "vt8235",     PCI_DEVICE_ID_VIA_8235,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  83         { "vt8233a",    PCI_DEVICE_ID_VIA_8233A,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
  84         { "vt8233c",    PCI_DEVICE_ID_VIA_8233C_0,  0x00, 0x2f, ATA_UDMA5, },
  85         { "vt8233",     PCI_DEVICE_ID_VIA_8233_0,   0x00, 0x2f, ATA_UDMA5, },
  86         { "vt8231",     PCI_DEVICE_ID_VIA_8231,     0x00, 0x2f, ATA_UDMA5, },
  87         { "vt82c686b",  PCI_DEVICE_ID_VIA_82C686,   0x40, 0x4f, ATA_UDMA5, },
  88         { "vt82c686a",  PCI_DEVICE_ID_VIA_82C686,   0x10, 0x2f, ATA_UDMA4, },
  89         { "vt82c686",   PCI_DEVICE_ID_VIA_82C686,   0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
  90         { "vt82c596b",  PCI_DEVICE_ID_VIA_82C596,   0x10, 0x2f, ATA_UDMA4, },
  91         { "vt82c596a",  PCI_DEVICE_ID_VIA_82C596,   0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
  92         { "vt82c586b",  PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, ATA_UDMA2, VIA_SET_FIFO },
  93         { "vt82c586b",  PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, ATA_UDMA2, VIA_SET_FIFO | VIA_BAD_PREQ },
  94         { "vt82c586b",  PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, ATA_UDMA2, VIA_SET_FIFO },
  95         { "vt82c586a",  PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, ATA_UDMA2, VIA_SET_FIFO },
  96         { "vt82c586",   PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f,      0x00, VIA_SET_FIFO },
  97         { "vt82c576",   PCI_DEVICE_ID_VIA_82C576,   0x00, 0x2f,      0x00, VIA_SET_FIFO | VIA_NO_UNMASK },
  98         { "vt82c576",   PCI_DEVICE_ID_VIA_82C576,   0x00, 0x2f,      0x00, VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
  99         { "vtxxxx",     PCI_DEVICE_ID_VIA_ANON,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
 100         { NULL }
 101 };
 102
 103 static unsigned int via_clock;
 104 static char *via_dma[] = { "16", "25", "33", "44", "66", "100", "133" };
 105
 106 struct via82cxxx_dev
 107 {
 108         struct via_isa_bridge *via_config;
 109         unsigned int via_80w;
 110 };
 111
 112 /**
 113  *      via_set_speed                   -       write timing registers
 114  *      @dev: PCI device
 115  *      @dn: device
 116  *      @timing: IDE timing data to use
 117  *
 118  *      via_set_speed writes timing values to the chipset registers
 119  */
 120
 121 static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing)
 122 {
 123         struct pci_dev *dev = to_pci_dev(hwif->dev);
 124         struct ide_host *host = pci_get_drvdata(dev);
 125         struct via82cxxx_dev *vdev = host->host_priv;
 126         u8 t;
 127
 128         if (~vdev->via_config->flags & VIA_BAD_AST) {
 129                 pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
 130                 t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
 131                 pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t);
 132         }
 133
 134         pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)),
 135                 ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1));
 136
 137         pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn),
 138                 ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1));
 139
 140         switch (vdev->via_config->udma_mask) {
 141         case ATA_UDMA2: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break;
 142         case ATA_UDMA4: t = timing->udma ? (0xe8 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x0f; break;
 143         case ATA_UDMA5: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break;
 144         case ATA_UDMA6: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break;
 145         }
 146
 147         /* Set UDMA unless device is not UDMA capable */
 148         if (vdev->via_config->udma_mask) {
 149                 u8 udma_etc;
 150
 151                 pci_read_config_byte(dev, VIA_UDMA_TIMING + 3 - dn, &udma_etc);
 152
 153                 /* clear transfer mode bit */
 154                 udma_etc &= ~0x20;
 155
 156                 if (timing->udma) {
 157                         /* preserve 80-wire cable detection bit */
 158                         udma_etc &= 0x10;
 159                         udma_etc |= t;
 160                 }
 161
 162                 pci_write_config_byte(dev, VIA_UDMA_TIMING + 3 - dn, udma_etc);
 163         }
 164 }
 165
 166 /**
 167  *      via_set_drive           -       configure transfer mode
 168  *      @hwif: port
 169  *      @drive: Drive to set up
 170  *
 171  *      via_set_drive() computes timing values configures the chipset to
 172  *      a desired transfer mode.  It also can be called by upper layers.
 173  */
 174
 175 static void via_set_drive(ide_hwif_t *hwif, ide_drive_t *drive)
 176 {
 177         ide_drive_t *peer = ide_get_pair_dev(drive);
 178         struct ide_host *host = dev_get_drvdata(hwif->dev);
 179         struct via82cxxx_dev *vdev = host->host_priv;
 180         struct ide_timing t, p;
 181         unsigned int T, UT;
 182         const u8 speed = drive->dma_mode;
 183
 184         T = 1000000000 / via_clock;
 185
 186         switch (vdev->via_config->udma_mask) {
 187         case ATA_UDMA2: UT = T;   break;
 188         case ATA_UDMA4: UT = T/2; break;
 189         case ATA_UDMA5: UT = T/3; break;
 190         case ATA_UDMA6: UT = T/4; break;
 191         default:        UT = T;
 192         }
 193
 194         ide_timing_compute(drive, speed, &t, T, UT);
 195
 196         if (peer) {
 197                 ide_timing_compute(peer, peer->pio_mode, &p, T, UT);
 198                 ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
 199         }
 200
 201         via_set_speed(hwif, drive->dn, &t);
 202 }
 203
 204 /**
 205  *      via_set_pio_mode        -       set host controller for PIO mode
 206  *      @hwif: port
 207  *      @drive: drive
 208  *
 209  *      A callback from the upper layers for PIO-only tuning.
 210  */
 211
 212 static void via_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
 213 {
 214         drive->dma_mode = drive->pio_mode;
 215         via_set_drive(hwif, drive);
 216 }
 217
 218 static struct via_isa_bridge *via_config_find(struct pci_dev **isa)
 219 {
 220         struct via_isa_bridge *via_config;
 221
 222         for (via_config = via_isa_bridges;
 223              via_config->id != PCI_DEVICE_ID_VIA_ANON; via_config++)
 224                 if ((*isa = pci_get_device(PCI_VENDOR_ID_VIA +
 225                         !!(via_config->flags & VIA_BAD_ID),
 226                         via_config->id, NULL))) {
 227
 228                         if ((*isa)->revision >= via_config->rev_min &&
 229                             (*isa)->revision <= via_config->rev_max)
 230                                 break;
 231                         pci_dev_put(*isa);
 232                 }
 233
 234         return via_config;
 235 }
 236
 237 /*
 238  * Check and handle 80-wire cable presence
 239  */
 240 static void via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
 241 {
 242         int i;
 243
 244         switch (vdev->via_config->udma_mask) {
 245                 case ATA_UDMA4:
 246                         for (i = 24; i >= 0; i -= 8)
 247                                 if (((u >> (i & 16)) & 8) &&
 248                                     ((u >> i) & 0x20) &&
 249                                      (((u >> i) & 7) < 2)) {
 250                                         /*
 251                                          * 2x PCI clock and
 252                                          * UDMA w/ < 3T/cycle
 253                                          */
 254                                         vdev->via_80w |= (1 << (1 - (i >> 4)));
 255                                 }
 256                         break;
 257
 258                 case ATA_UDMA5:
 259                         for (i = 24; i >= 0; i -= 8)
 260                                 if (((u >> i) & 0x10) ||
 261                                     (((u >> i) & 0x20) &&
 262                                      (((u >> i) & 7) < 4))) {
 263                                         /* BIOS 80-wire bit or
 264                                          * UDMA w/ < 60ns/cycle
 265                                          */
 266                                         vdev->via_80w |= (1 << (1 - (i >> 4)));
 267                                 }
 268                         break;
 269
 270                 case ATA_UDMA6:
 271                         for (i = 24; i >= 0; i -= 8)
 272                                 if (((u >> i) & 0x10) ||
 273                                     (((u >> i) & 0x20) &&
 274                                      (((u >> i) & 7) < 6))) {
 275                                         /* BIOS 80-wire bit or
 276                                          * UDMA w/ < 60ns/cycle
 277                                          */
 278                                         vdev->via_80w |= (1 << (1 - (i >> 4)));
 279                                 }
 280                         break;
 281         }
 282 }
 283
 284 /**
 285  *      init_chipset_via82cxxx  -       initialization handler
 286  *      @dev: PCI device
 287  *
 288  *      The initialization callback. Here we determine the IDE chip type
 289  *      and initialize its drive independent registers.
 290  */
 291
 292 static int init_chipset_via82cxxx(struct pci_dev *dev)
 293 {
 294         struct ide_host *host = pci_get_drvdata(dev);
 295         struct via82cxxx_dev *vdev = host->host_priv;
 296         struct via_isa_bridge *via_config = vdev->via_config;
 297         u8 t, v;
 298         u32 u;
 299
 300         /*
 301          * Detect cable and configure Clk66
 302          */
 303         pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
 304
 305         via_cable_detect(vdev, u);
 306
 307         if (via_config->udma_mask == ATA_UDMA4) {
 308                 /* Enable Clk66 */
 309                 pci_write_config_dword(dev, VIA_UDMA_TIMING, u|0x80008);
 310         } else if (via_config->flags & VIA_BAD_CLK66) {
 311                 /* Would cause trouble on 596a and 686 */
 312                 pci_write_config_dword(dev, VIA_UDMA_TIMING, u & ~0x80008);
 313         }
 314
 315         /*
 316          * Check whether interfaces are enabled.
 317          */
 318
 319         pci_read_config_byte(dev, VIA_IDE_ENABLE, &v);
 320
 321         /*
 322          * Set up FIFO sizes and thresholds.
 323          */
 324
 325         pci_read_config_byte(dev, VIA_FIFO_CONFIG, &t);
 326
 327         /* Disable PREQ# till DDACK# */
 328         if (via_config->flags & VIA_BAD_PREQ) {
 329                 /* Would crash on 586b rev 41 */
 330                 t &= 0x7f;
 331         }
 332
 333         /* Fix FIFO split between channels */
 334         if (via_config->flags & VIA_SET_FIFO) {
 335                 t &= (t & 0x9f);
 336                 switch (v & 3) {
 337                         case 2: t |= 0x00; break;       /* 16 on primary */
 338                         case 1: t |= 0x60; break;       /* 16 on secondary */
 339                         case 3: t |= 0x20; break;       /* 8 pri 8 sec */
 340                 }
 341         }
 342
 343         pci_write_config_byte(dev, VIA_FIFO_CONFIG, t);
 344
 345         return 0;
 346 }
 347
 348 /*
 349  *      Cable special cases
 350  */
 351
 352 static const struct dmi_system_id cable_dmi_table[] = {
 353         {
 354                 .ident = "Acer Ferrari 3400",
 355                 .matches = {
 356                         DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."),
 357                         DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"),
 358                 },
 359         },
 360         { }
 361 };
 362
 363 static int via_cable_override(struct pci_dev *pdev)
 364 {
 365         /* Systems by DMI */
 366         if (dmi_check_system(cable_dmi_table))
 367                 return 1;
 368
 369         /* Arima W730-K8/Targa Visionary 811/... */
 370         if (pdev->subsystem_vendor == 0x161F &&
 371             pdev->subsystem_device == 0x2032)
 372                 return 1;
 373
 374         return 0;
 375 }
 376
 377 static u8 via82cxxx_cable_detect(ide_hwif_t *hwif)
 378 {
 379         struct pci_dev *pdev = to_pci_dev(hwif->dev);
 380         struct ide_host *host = pci_get_drvdata(pdev);
 381         struct via82cxxx_dev *vdev = host->host_priv;
 382
 383         if (via_cable_override(pdev))
 384                 return ATA_CBL_PATA40_SHORT;
 385
 386         if ((vdev->via_config->flags & VIA_SATA_PATA) && hwif->channel == 0)
 387                 return ATA_CBL_SATA;
 388
 389         if ((vdev->via_80w >> hwif->channel) & 1)
 390                 return ATA_CBL_PATA80;
 391         else
 392                 return ATA_CBL_PATA40;
 393 }
 394
 395 static const struct ide_port_ops via_port_ops = {
 396         .set_pio_mode           = via_set_pio_mode,
 397         .set_dma_mode           = via_set_drive,
 398         .cable_detect           = via82cxxx_cable_detect,
 399 };
 400
 401 static const struct ide_port_info via82cxxx_chipset = {
 402         .name           = DRV_NAME,
 403         .init_chipset   = init_chipset_via82cxxx,
 404         .enablebits     = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } },
 405         .port_ops       = &via_port_ops,
 406         .host_flags     = IDE_HFLAG_PIO_NO_BLACKLIST |
 407                           IDE_HFLAG_POST_SET_MODE |
 408                           IDE_HFLAG_IO_32BIT,
 409         .pio_mask       = ATA_PIO5,
 410         .swdma_mask     = ATA_SWDMA2,
 411         .mwdma_mask     = ATA_MWDMA2,
 412 };
 413
 414 static int via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 415 {
 416         struct pci_dev *isa = NULL;
 417         struct via_isa_bridge *via_config;
 418         struct via82cxxx_dev *vdev;
 419         int rc;
 420         u8 idx = id->driver_data;
 421         struct ide_port_info d;
 422
 423         d = via82cxxx_chipset;
 424
 425         /*
 426          * Find the ISA bridge and check we know what it is.
 427          */
 428         via_config = via_config_find(&isa);
 429
 430         /*
 431          * Print the boot message.
 432          */
 433         printk(KERN_INFO DRV_NAME " %s: VIA %s (rev %02x) IDE %sDMA%s\n",
 434                 pci_name(dev), via_config->name, isa->revision,
 435                 via_config->udma_mask ? "U" : "MW",
 436                 via_dma[via_config->udma_mask ?
 437                         (fls(via_config->udma_mask) - 1) : 0]);
 438
 439         pci_dev_put(isa);
 440
 441         /*
 442          * Determine system bus clock.
 443          */
 444         via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000;
 445
 446         switch (via_clock) {
 447         case 33000: via_clock = 33333; break;
 448         case 37000: via_clock = 37500; break;
 449         case 41000: via_clock = 41666; break;
 450         }
 451
 452         if (via_clock < 20000 || via_clock > 50000) {
 453                 printk(KERN_WARNING DRV_NAME ": User given PCI clock speed "
 454                         "impossible (%d), using 33 MHz instead.\n", via_clock);
 455                 via_clock = 33333;
 456         }
 457
 458         if (idx == 1)
 459                 d.enablebits[1].reg = d.enablebits[0].reg = 0;
 460         else
 461                 d.host_flags |= IDE_HFLAG_NO_AUTODMA;
 462
 463         if (idx == VIA_IDFLAG_SINGLE)
 464                 d.host_flags |= IDE_HFLAG_SINGLE;
 465
 466         if ((via_config->flags & VIA_NO_UNMASK) == 0)
 467                 d.host_flags |= IDE_HFLAG_UNMASK_IRQS;
 468
 469         d.udma_mask = via_config->udma_mask;
 470
 471         vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
 472         if (!vdev) {
 473                 printk(KERN_ERR DRV_NAME " %s: out of memory :(\n",
 474                         pci_name(dev));
 475                 return -ENOMEM;
 476         }
 477
 478         vdev->via_config = via_config;
 479
 480         rc = ide_pci_init_one(dev, &d, vdev);
 481         if (rc)
 482                 kfree(vdev);
 483
 484         return rc;
 485 }
 486
 487 static void via_remove(struct pci_dev *dev)
 488 {
 489         struct ide_host *host = pci_get_drvdata(dev);
 490         struct via82cxxx_dev *vdev = host->host_priv;
 491
 492         ide_pci_remove(dev);
 493         kfree(vdev);
 494 }
 495
 496 static const struct pci_device_id via_pci_tbl[] = {
 497         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C576_1),  0 },
 498         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C586_1),  0 },
 499         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_CX700_IDE), 0 },
 500         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_VX855_IDE), VIA_IDFLAG_SINGLE },
 501         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6410),      1 },
 502         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6415),      1 },
 503         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_SATA_EIDE), 1 },
 504         { 0, },
 505 };
 506 MODULE_DEVICE_TABLE(pci, via_pci_tbl);
 507
 508 static struct pci_driver via_pci_driver = {
 509         .name           = "VIA_IDE",
 510         .id_table       = via_pci_tbl,
 511         .probe          = via_init_one,
 512         .remove         = via_remove,
 513         .suspend        = ide_pci_suspend,
 514         .resume         = ide_pci_resume,
 515 };
 516
 517 static int __init via_ide_init(void)
 518 {
 519         return ide_pci_register_driver(&via_pci_driver);
 520 }
 521
 522 static void __exit via_ide_exit(void)
 523 {
 524         pci_unregister_driver(&via_pci_driver);
 525 }
 526
 527 module_init(via_ide_init);
 528 module_exit(via_ide_exit);
 529
 530 MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz, Michel Aubry, Jeff Garzik, Andre Hedrick");
 531 MODULE_DESCRIPTION("PCI driver module for VIA IDE");
 532 MODULE_LICENSE("GPL");