via82cxxx.c 14.7 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2
/*
 *
3
 * Version 3.46
Linus Torvalds's avatar
Linus Torvalds committed
4 5 6 7 8
 *
 * VIA IDE driver for Linux. Supported southbridges:
 *
 *   vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b,
 *   vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a,
9
 *   vt8235, vt8237, vt8237a
Linus Torvalds's avatar
Linus Torvalds committed
10 11
 *
 * Copyright (c) 2000-2002 Vojtech Pavlik
12
 * Copyright (c) 2007 Bartlomiej Zolnierkiewicz
Linus Torvalds's avatar
Linus Torvalds committed
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
 *
 * Based on the work of:
 *	Michel Aubry
 *	Jeff Garzik
 *	Andre Hedrick
 *
 * Documentation:
 *	Obsolete device documentation publically available from via.com.tw
 *	Current device documentation available under NDA only
 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
37 38
#include <linux/dmi.h>

Linus Torvalds's avatar
Linus Torvalds committed
39 40
#include <asm/io.h>

41
#ifdef CONFIG_PPC_CHRP
Linus Torvalds's avatar
Linus Torvalds committed
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
#include <asm/processor.h>
#endif

#include "ide-timing.h"

#define VIA_IDE_ENABLE		0x40
#define VIA_IDE_CONFIG		0x41
#define VIA_FIFO_CONFIG		0x43
#define VIA_MISC_1		0x44
#define VIA_MISC_2		0x45
#define VIA_MISC_3		0x46
#define VIA_DRIVE_TIMING	0x48
#define VIA_8BIT_TIMING		0x4e
#define VIA_ADDRESS_SETUP	0x4c
#define VIA_UDMA_TIMING		0x50

58 59 60 61 62 63
#define VIA_BAD_PREQ		0x01 /* Crashes if PREQ# till DDACK# set */
#define VIA_BAD_CLK66		0x02 /* 66 MHz clock doesn't work correctly */
#define VIA_SET_FIFO		0x04 /* Needs to have FIFO split set */
#define VIA_NO_UNMASK		0x08 /* Doesn't work with IRQ unmasking on */
#define VIA_BAD_ID		0x10 /* Has wrong vendor ID (0x1107) */
#define VIA_BAD_AST		0x20 /* Don't touch Address Setup Timing */
Linus Torvalds's avatar
Linus Torvalds committed
64 65 66 67 68 69 70 71 72 73

/*
 * VIA SouthBridge chips.
 */

static struct via_isa_bridge {
	char *name;
	u16 id;
	u8 rev_min;
	u8 rev_max;
74 75
	u8 udma_mask;
	u8 flags;
Linus Torvalds's avatar
Linus Torvalds committed
76
} via_isa_bridges[] = {
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
	{ "cx700",	PCI_DEVICE_ID_VIA_CX700,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8237s",	PCI_DEVICE_ID_VIA_8237S,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt6410",	PCI_DEVICE_ID_VIA_6410,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8251",	PCI_DEVICE_ID_VIA_8251,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8237",	PCI_DEVICE_ID_VIA_8237,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8237a",	PCI_DEVICE_ID_VIA_8237A,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8235",	PCI_DEVICE_ID_VIA_8235,     0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8233a",	PCI_DEVICE_ID_VIA_8233A,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
	{ "vt8233c",	PCI_DEVICE_ID_VIA_8233C_0,  0x00, 0x2f, ATA_UDMA5, },
	{ "vt8233",	PCI_DEVICE_ID_VIA_8233_0,   0x00, 0x2f, ATA_UDMA5, },
	{ "vt8231",	PCI_DEVICE_ID_VIA_8231,     0x00, 0x2f, ATA_UDMA5, },
	{ "vt82c686b",	PCI_DEVICE_ID_VIA_82C686,   0x40, 0x4f, ATA_UDMA5, },
	{ "vt82c686a",	PCI_DEVICE_ID_VIA_82C686,   0x10, 0x2f, ATA_UDMA4, },
	{ "vt82c686",	PCI_DEVICE_ID_VIA_82C686,   0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
	{ "vt82c596b",	PCI_DEVICE_ID_VIA_82C596,   0x10, 0x2f, ATA_UDMA4, },
	{ "vt82c596a",	PCI_DEVICE_ID_VIA_82C596,   0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
	{ "vt82c586b",	PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, ATA_UDMA2, VIA_SET_FIFO },
	{ "vt82c586b",	PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, ATA_UDMA2, VIA_SET_FIFO | VIA_BAD_PREQ },
	{ "vt82c586b",	PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, ATA_UDMA2, VIA_SET_FIFO },
	{ "vt82c586a",	PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, ATA_UDMA2, VIA_SET_FIFO },
	{ "vt82c586",	PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f,      0x00, VIA_SET_FIFO },
	{ "vt82c576",	PCI_DEVICE_ID_VIA_82C576,   0x00, 0x2f,      0x00, VIA_SET_FIFO | VIA_NO_UNMASK },
	{ "vt82c576",	PCI_DEVICE_ID_VIA_82C576,   0x00, 0x2f,      0x00, VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
Linus Torvalds's avatar
Linus Torvalds committed
100 101 102 103
	{ NULL }
};

static unsigned int via_clock;
104
static char *via_dma[] = { "16", "25", "33", "44", "66", "100", "133" };
Linus Torvalds's avatar
Linus Torvalds committed
105

106 107 108 109 110 111
struct via82cxxx_dev
{
	struct via_isa_bridge *via_config;
	unsigned int via_80w;
};

Linus Torvalds's avatar
Linus Torvalds committed
112 113 114 115 116 117 118 119 120
/**
 *	via_set_speed			-	write timing registers
 *	@dev: PCI device
 *	@dn: device
 *	@timing: IDE timing data to use
 *
 *	via_set_speed writes timing values to the chipset registers
 */

121
static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing)
Linus Torvalds's avatar
Linus Torvalds committed
122
{
123
	struct pci_dev *dev = hwif->pci_dev;
124
	struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);
Linus Torvalds's avatar
Linus Torvalds committed
125 126
	u8 t;

127
	if (~vdev->via_config->flags & VIA_BAD_AST) {
Linus Torvalds's avatar
Linus Torvalds committed
128 129 130 131 132 133 134 135 136 137 138
		pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
		t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
		pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t);
	}

	pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)),
		((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1));

	pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn),
		((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));

139 140 141 142 143 144
	switch (vdev->via_config->udma_mask) {
	case ATA_UDMA2: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
	case ATA_UDMA4: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break;
	case ATA_UDMA5: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
	case ATA_UDMA6: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
	default: return;
Linus Torvalds's avatar
Linus Torvalds committed
145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
	}

	pci_write_config_byte(dev, VIA_UDMA_TIMING + (3 - dn), t);
}

/**
 *	via_set_drive		-	configure transfer mode
 *	@drive: Drive to set up
 *	@speed: desired speed
 *
 *	via_set_drive() computes timing values configures the drive and
 *	the chipset to a desired transfer mode. It also can be called
 *	by upper layers.
 */

static int via_set_drive(ide_drive_t *drive, u8 speed)
{
	ide_drive_t *peer = HWIF(drive)->drives + (~drive->dn & 1);
163
	struct via82cxxx_dev *vdev = pci_get_drvdata(drive->hwif->pci_dev);
Linus Torvalds's avatar
Linus Torvalds committed
164 165 166 167 168 169 170 171
	struct ide_timing t, p;
	unsigned int T, UT;

	if (speed != XFER_PIO_SLOW)
		ide_config_drive_speed(drive, speed);

	T = 1000000000 / via_clock;

172 173 174 175 176 177
	switch (vdev->via_config->udma_mask) {
	case ATA_UDMA2: UT = T;   break;
	case ATA_UDMA4: UT = T/2; break;
	case ATA_UDMA5: UT = T/3; break;
	case ATA_UDMA6: UT = T/4; break;
	default:	UT = T;
Linus Torvalds's avatar
Linus Torvalds committed
178 179 180 181 182 183 184 185 186
	}

	ide_timing_compute(drive, speed, &t, T, UT);

	if (peer->present) {
		ide_timing_compute(peer, peer->current_speed, &p, T, UT);
		ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
	}

187
	via_set_speed(HWIF(drive), drive->dn, &t);
Linus Torvalds's avatar
Linus Torvalds committed
188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205

	if (!drive->init_speed)
		drive->init_speed = speed;
	drive->current_speed = speed;

	return 0;
}

/**
 *	via82cxxx_tune_drive	-	PIO setup
 *	@drive: drive to set up
 *	@pio: mode to use (255 for 'best possible')
 *
 *	A callback from the upper layers for PIO-only tuning.
 */

static void via82cxxx_tune_drive(ide_drive_t *drive, u8 pio)
{
206 207
	if (pio == 255)
		pio = ide_get_best_pio_mode(drive, 255, 5);
Linus Torvalds's avatar
Linus Torvalds committed
208 209 210 211 212 213 214 215 216 217 218 219 220 221

	via_set_drive(drive, XFER_PIO_0 + min_t(u8, pio, 5));
}

/**
 *	via82cxxx_ide_dma_check		-	set up for DMA if possible
 *	@drive: IDE drive to set up
 *
 *	Set up the drive for the highest supported speed considering the
 *	driver, controller and cable
 */
 
static int via82cxxx_ide_dma_check (ide_drive_t *drive)
{
222
	u8 speed = ide_max_dma_mode(drive);
Linus Torvalds's avatar
Linus Torvalds committed
223

224 225 226 227
	if (speed == 0) {
		via82cxxx_tune_drive(drive, 255);
		return -1;
	}
Linus Torvalds's avatar
Linus Torvalds committed
228 229 230

	via_set_drive(drive, speed);

231
	if (drive->autodma)
232 233 234
		return 0;

	return -1;
235 236 237 238 239 240 241
}

static struct via_isa_bridge *via_config_find(struct pci_dev **isa)
{
	struct via_isa_bridge *via_config;

	for (via_config = via_isa_bridges; via_config->id; via_config++)
Alan Cox's avatar
Alan Cox committed
242
		if ((*isa = pci_get_device(PCI_VENDOR_ID_VIA +
243 244 245
			!!(via_config->flags & VIA_BAD_ID),
			via_config->id, NULL))) {

246 247
			if ((*isa)->revision >= via_config->rev_min &&
			    (*isa)->revision <= via_config->rev_max)
248
				break;
Alan Cox's avatar
Alan Cox committed
249
			pci_dev_put(*isa);
250 251 252
		}

	return via_config;
Linus Torvalds's avatar
Linus Torvalds committed
253 254
}

255 256 257 258 259 260 261
/*
 * Check and handle 80-wire cable presence
 */
static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
{
	int i;

262 263
	switch (vdev->via_config->udma_mask) {
		case ATA_UDMA4:
264 265 266 267 268 269 270 271 272 273 274 275
			for (i = 24; i >= 0; i -= 8)
				if (((u >> (i & 16)) & 8) &&
				    ((u >> i) & 0x20) &&
				     (((u >> i) & 7) < 2)) {
					/*
					 * 2x PCI clock and
					 * UDMA w/ < 3T/cycle
					 */
					vdev->via_80w |= (1 << (1 - (i >> 4)));
				}
			break;

276
		case ATA_UDMA5:
277 278 279 280 281 282 283 284 285 286 287
			for (i = 24; i >= 0; i -= 8)
				if (((u >> i) & 0x10) ||
				    (((u >> i) & 0x20) &&
				     (((u >> i) & 7) < 4))) {
					/* BIOS 80-wire bit or
					 * UDMA w/ < 60ns/cycle
					 */
					vdev->via_80w |= (1 << (1 - (i >> 4)));
				}
			break;

288
		case ATA_UDMA6:
289 290 291 292 293 294 295 296 297 298 299 300 301
			for (i = 24; i >= 0; i -= 8)
				if (((u >> i) & 0x10) ||
				    (((u >> i) & 0x20) &&
				     (((u >> i) & 7) < 6))) {
					/* BIOS 80-wire bit or
					 * UDMA w/ < 60ns/cycle
					 */
					vdev->via_80w |= (1 << (1 - (i >> 4)));
				}
			break;
	}
}

Linus Torvalds's avatar
Linus Torvalds committed
302 303 304 305 306 307 308 309 310
/**
 *	init_chipset_via82cxxx	-	initialization handler
 *	@dev: PCI device
 *	@name: Name of interface
 *
 *	The initialization callback. Here we determine the IDE chip type
 *	and initialize its drive independent registers.
 */

311
static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const char *name)
Linus Torvalds's avatar
Linus Torvalds committed
312 313
{
	struct pci_dev *isa = NULL;
314
	struct via82cxxx_dev *vdev;
315
	struct via_isa_bridge *via_config;
Linus Torvalds's avatar
Linus Torvalds committed
316
	u8 t, v;
317 318 319 320 321 322 323 324
	u32 u;

	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
	if (!vdev) {
		printk(KERN_ERR "VP_IDE: out of memory :(\n");
		return -ENOMEM;
	}
	pci_set_drvdata(dev, vdev);
Linus Torvalds's avatar
Linus Torvalds committed
325 326 327 328

	/*
	 * Find the ISA bridge to see how good the IDE is.
	 */
329
	vdev->via_config = via_config = via_config_find(&isa);
330 331 332 333 334

	/* We checked this earlier so if it fails here deeep badness
	   is involved */

	BUG_ON(!via_config->id);
Linus Torvalds's avatar
Linus Torvalds committed
335 336

	/*
337
	 * Detect cable and configure Clk66
Linus Torvalds's avatar
Linus Torvalds committed
338
	 */
339 340 341
	pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);

	via_cable_detect(vdev, u);
Linus Torvalds's avatar
Linus Torvalds committed
342

343
	if (via_config->udma_mask == ATA_UDMA4) {
344 345 346
		/* Enable Clk66 */
		pci_write_config_dword(dev, VIA_UDMA_TIMING, u|0x80008);
	} else if (via_config->flags & VIA_BAD_CLK66) {
Linus Torvalds's avatar
Linus Torvalds committed
347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
		/* Would cause trouble on 596a and 686 */
		pci_write_config_dword(dev, VIA_UDMA_TIMING, u & ~0x80008);
	}

	/*
	 * Check whether interfaces are enabled.
	 */

	pci_read_config_byte(dev, VIA_IDE_ENABLE, &v);

	/*
	 * Set up FIFO sizes and thresholds.
	 */

	pci_read_config_byte(dev, VIA_FIFO_CONFIG, &t);

	/* Disable PREQ# till DDACK# */
	if (via_config->flags & VIA_BAD_PREQ) {
		/* Would crash on 586b rev 41 */
		t &= 0x7f;
	}

	/* Fix FIFO split between channels */
	if (via_config->flags & VIA_SET_FIFO) {
		t &= (t & 0x9f);
		switch (v & 3) {
			case 2: t |= 0x00; break;	/* 16 on primary */
			case 1: t |= 0x60; break;	/* 16 on secondary */
			case 3: t |= 0x20; break;	/* 8 pri 8 sec */
		}
	}

	pci_write_config_byte(dev, VIA_FIFO_CONFIG, t);

	/*
	 * Determine system bus clock.
	 */

	via_clock = system_bus_clock() * 1000;

	switch (via_clock) {
		case 33000: via_clock = 33333; break;
		case 37000: via_clock = 37500; break;
		case 41000: via_clock = 41666; break;
	}

	if (via_clock < 20000 || via_clock > 50000) {
		printk(KERN_WARNING "VP_IDE: User given PCI clock speed "
			"impossible (%d), using 33 MHz instead.\n", via_clock);
		printk(KERN_WARNING "VP_IDE: Use ide0=ata66 if you want "
			"to assume 80-wire cable.\n");
		via_clock = 33333;
	}

	/*
	 * Print the boot message.
	 */

405
	printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %sDMA%s "
Linus Torvalds's avatar
Linus Torvalds committed
406
		"controller on pci%s\n",
407
		via_config->name, isa->revision,
408 409 410
		via_config->udma_mask ? "U" : "MW",
		via_dma[via_config->udma_mask ?
			(fls(via_config->udma_mask) - 1) : 0],
Linus Torvalds's avatar
Linus Torvalds committed
411 412
		pci_name(dev));

Alan Cox's avatar
Alan Cox committed
413
	pci_dev_put(isa);
Linus Torvalds's avatar
Linus Torvalds committed
414 415 416
	return 0;
}

417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452
/*
 *	Cable special cases
 */

static struct dmi_system_id cable_dmi_table[] = {
	{
		.ident = "Acer Ferrari 3400",
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."),
			DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"),
		},
	},
	{ }
};

static int via_cable_override(void)
{
	/* Systems by DMI */
	if (dmi_check_system(cable_dmi_table))
		return 1;
	return 0;
}

static u8 __devinit via82cxxx_cable_detect(ide_hwif_t *hwif)
{
	struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);

	if (via_cable_override())
		return ATA_CBL_PATA40_SHORT;

	if ((vdev->via_80w >> hwif->channel) & 1)
		return ATA_CBL_PATA80;
	else
		return ATA_CBL_PATA40;
}

453
static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
Linus Torvalds's avatar
Linus Torvalds committed
454
{
455
	struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);
Linus Torvalds's avatar
Linus Torvalds committed
456 457 458 459 460 461 462 463
	int i;

	hwif->autodma = 0;

	hwif->tuneproc = &via82cxxx_tune_drive;
	hwif->speedproc = &via_set_drive;


464
#ifdef CONFIG_PPC_CHRP
465
	if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) {
Linus Torvalds's avatar
Linus Torvalds committed
466 467 468 469 470 471
		hwif->irq = hwif->channel ? 15 : 14;
	}
#endif

	for (i = 0; i < 2; i++) {
		hwif->drives[i].io_32bit = 1;
472
		hwif->drives[i].unmask = (vdev->via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
Linus Torvalds's avatar
Linus Torvalds committed
473 474 475 476 477 478 479 480
		hwif->drives[i].autotune = 1;
		hwif->drives[i].dn = hwif->channel * 2 + i;
	}

	if (!hwif->dma_base)
		return;

	hwif->atapi_dma = 1;
481 482

	hwif->ultra_mask = vdev->via_config->udma_mask;
Linus Torvalds's avatar
Linus Torvalds committed
483 484 485
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;

486 487
	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
		hwif->cbl = via82cxxx_cable_detect(hwif);
488

Linus Torvalds's avatar
Linus Torvalds committed
489 490 491 492 493 494 495
	hwif->ide_dma_check = &via82cxxx_ide_dma_check;
	if (!noautodma)
		hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->autodma;
	hwif->drives[1].autodma = hwif->autodma;
}

496 497 498 499 500 501 502
static ide_pci_device_t via82cxxx_chipsets[] __devinitdata = {
	{	/* 0 */
		.name		= "VP_IDE",
		.init_chipset	= init_chipset_via82cxxx,
		.init_hwif	= init_hwif_via82cxxx,
		.autodma	= NOAUTODMA,
		.enablebits	= {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
503 504 505
		.bootable	= ON_BOARD,
		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST
				| IDE_HFLAG_PIO_NO_DOWNGRADE,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
506
		.pio_mask	= ATA_PIO5,
507 508 509 510 511 512 513
	},{	/* 1 */
		.name		= "VP_IDE",
		.init_chipset	= init_chipset_via82cxxx,
		.init_hwif	= init_hwif_via82cxxx,
		.autodma	= AUTODMA,
		.enablebits	= {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
		.bootable	= ON_BOARD,
514 515
		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST
				| IDE_HFLAG_PIO_NO_DOWNGRADE,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
516
		.pio_mask	= ATA_PIO5,
517
	}
Linus Torvalds's avatar
Linus Torvalds committed
518 519 520 521
};

static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
522 523 524 525 526 527 528 529 530 531 532
	struct pci_dev *isa = NULL;
	struct via_isa_bridge *via_config;
	/*
	 * Find the ISA bridge and check we know what it is.
	 */
	via_config = via_config_find(&isa);
	pci_dev_put(isa);
	if (!via_config->id) {
		printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
		return -ENODEV;
	}
533
	return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]);
Linus Torvalds's avatar
Linus Torvalds committed
534 535 536 537 538
}

static struct pci_device_id via_pci_tbl[] = {
	{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
539
	{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_6410,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
540
	{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_SATA_EIDE,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
Linus Torvalds's avatar
Linus Torvalds committed
541 542 543 544 545 546 547 548 549 550
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, via_pci_tbl);

static struct pci_driver driver = {
	.name 		= "VIA_IDE",
	.id_table 	= via_pci_tbl,
	.probe 		= via_init_one,
};

551
static int __init via_ide_init(void)
Linus Torvalds's avatar
Linus Torvalds committed
552 553 554 555 556 557 558 559 560
{
	return ide_pci_register_driver(&driver);
}

module_init(via_ide_init);

MODULE_AUTHOR("Vojtech Pavlik, Michel Aubry, Jeff Garzik, Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for VIA IDE");
MODULE_LICENSE("GPL");