via82cxxx.c 14.8 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2
/*
 *
3
 * Version 3.48
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
	{ "vx800",	PCI_DEVICE_ID_VIA_VX800,    0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
	{ "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
101 102 103 104
	{ NULL }
};

static unsigned int via_clock;
105
static char *via_dma[] = { "16", "25", "33", "44", "66", "100", "133" };
Linus Torvalds's avatar
Linus Torvalds committed
106

107 108 109 110 111 112
struct via82cxxx_dev
{
	struct via_isa_bridge *via_config;
	unsigned int via_80w;
};

Linus Torvalds's avatar
Linus Torvalds committed
113 114 115 116 117 118 119 120 121
/**
 *	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
 */

122
static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing)
Linus Torvalds's avatar
Linus Torvalds committed
123
{
124
	struct pci_dev *dev = hwif->pci_dev;
125
	struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);
Linus Torvalds's avatar
Linus Torvalds committed
126 127
	u8 t;

128
	if (~vdev->via_config->flags & VIA_BAD_AST) {
Linus Torvalds's avatar
Linus Torvalds committed
129 130 131 132 133 134 135 136 137 138 139
		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));

140 141 142 143 144 145
	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
146 147 148 149 150 151 152 153 154 155 156 157 158 159 160
	}

	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.
 */

161
static int via_set_drive(ide_drive_t *drive, const u8 speed)
Linus Torvalds's avatar
Linus Torvalds committed
162 163
{
	ide_drive_t *peer = HWIF(drive)->drives + (~drive->dn & 1);
164
	struct via82cxxx_dev *vdev = pci_get_drvdata(drive->hwif->pci_dev);
Linus Torvalds's avatar
Linus Torvalds committed
165 166 167 168 169 170 171 172
	struct ide_timing t, p;
	unsigned int T, UT;

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

	T = 1000000000 / via_clock;

173 174 175 176 177 178
	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
179 180 181 182 183 184 185 186 187
	}

	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);
	}

188
	via_set_speed(HWIF(drive), drive->dn, &t);
Linus Torvalds's avatar
Linus Torvalds committed
189 190 191 192 193 194 195 196 197

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

	return 0;
}

/**
198 199 200
 *	via_set_pio_mode	-	PIO setup
 *	@drive: drive
 *	@pio: PIO mode number
Linus Torvalds's avatar
Linus Torvalds committed
201 202 203 204
 *
 *	A callback from the upper layers for PIO-only tuning.
 */

205
static void via_set_pio_mode(ide_drive_t *drive, const u8 pio)
Linus Torvalds's avatar
Linus Torvalds committed
206
{
207
	via_set_drive(drive, XFER_PIO_0 + pio);
Linus Torvalds's avatar
Linus Torvalds committed
208 209 210 211 212 213 214 215 216 217 218 219
}

/**
 *	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)
{
220
	if (ide_tune_dma(drive))
221 222
		return 0;

223 224
	ide_set_max_pio(drive);

225
	return -1;
226 227 228 229 230 231 232
}

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
233
		if ((*isa = pci_get_device(PCI_VENDOR_ID_VIA +
234 235 236
			!!(via_config->flags & VIA_BAD_ID),
			via_config->id, NULL))) {

237 238
			if ((*isa)->revision >= via_config->rev_min &&
			    (*isa)->revision <= via_config->rev_max)
239
				break;
Alan Cox's avatar
Alan Cox committed
240
			pci_dev_put(*isa);
241 242 243
		}

	return via_config;
Linus Torvalds's avatar
Linus Torvalds committed
244 245
}

246 247 248 249 250 251 252
/*
 * Check and handle 80-wire cable presence
 */
static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u)
{
	int i;

253 254
	switch (vdev->via_config->udma_mask) {
		case ATA_UDMA4:
255 256 257 258 259 260 261 262 263 264 265 266
			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;

267
		case ATA_UDMA5:
268 269 270 271 272 273 274 275 276 277 278
			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;

279
		case ATA_UDMA6:
280 281 282 283 284 285 286 287 288 289 290 291 292
			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
293 294 295 296 297 298 299 300 301
/**
 *	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.
 */

302
static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const char *name)
Linus Torvalds's avatar
Linus Torvalds committed
303 304
{
	struct pci_dev *isa = NULL;
305
	struct via82cxxx_dev *vdev;
306
	struct via_isa_bridge *via_config;
Linus Torvalds's avatar
Linus Torvalds committed
307
	u8 t, v;
308 309 310 311 312 313 314 315
	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
316 317 318 319

	/*
	 * Find the ISA bridge to see how good the IDE is.
	 */
320
	vdev->via_config = via_config = via_config_find(&isa);
321 322 323 324 325

	/* 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
326 327

	/*
328
	 * Detect cable and configure Clk66
Linus Torvalds's avatar
Linus Torvalds committed
329
	 */
330 331 332
	pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);

	via_cable_detect(vdev, u);
Linus Torvalds's avatar
Linus Torvalds committed
333

334
	if (via_config->udma_mask == ATA_UDMA4) {
335 336 337
		/* 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
338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395
		/* 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.
	 */

396
	printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %sDMA%s "
Linus Torvalds's avatar
Linus Torvalds committed
397
		"controller on pci%s\n",
398
		via_config->name, isa->revision,
399 400 401
		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
402 403
		pci_name(dev));

Alan Cox's avatar
Alan Cox committed
404
	pci_dev_put(isa);
Linus Torvalds's avatar
Linus Torvalds committed
405 406 407
	return 0;
}

408 409 410 411
/*
 *	Cable special cases
 */

412
static const struct dmi_system_id cable_dmi_table[] = {
413 414 415 416 417 418 419 420 421 422
	{
		.ident = "Acer Ferrari 3400",
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."),
			DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"),
		},
	},
	{ }
};

423
static int via_cable_override(struct pci_dev *pdev)
424 425 426 427
{
	/* Systems by DMI */
	if (dmi_check_system(cable_dmi_table))
		return 1;
428 429 430 431 432 433

	/* Arima W730-K8/Targa Visionary 811/... */
	if (pdev->subsystem_vendor == 0x161F &&
	    pdev->subsystem_device == 0x2032)
		return 1;

434 435 436 437 438
	return 0;
}

static u8 __devinit via82cxxx_cable_detect(ide_hwif_t *hwif)
{
439 440
	struct pci_dev *pdev = hwif->pci_dev;
	struct via82cxxx_dev *vdev = pci_get_drvdata(pdev);
441

442
	if (via_cable_override(pdev))
443 444 445 446 447 448 449 450
		return ATA_CBL_PATA40_SHORT;

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

451
static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
Linus Torvalds's avatar
Linus Torvalds committed
452
{
453
	struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);
Linus Torvalds's avatar
Linus Torvalds committed
454 455 456 457
	int i;

	hwif->autodma = 0;

458
	hwif->set_pio_mode = &via_set_pio_mode;
Linus Torvalds's avatar
Linus Torvalds committed
459 460 461
	hwif->speedproc = &via_set_drive;


462
#ifdef CONFIG_PPC_CHRP
463
	if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) {
Linus Torvalds's avatar
Linus Torvalds committed
464 465 466 467 468 469
		hwif->irq = hwif->channel ? 15 : 14;
	}
#endif

	for (i = 0; i < 2; i++) {
		hwif->drives[i].io_32bit = 1;
470
		hwif->drives[i].unmask = (vdev->via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
Linus Torvalds's avatar
Linus Torvalds committed
471 472 473 474 475 476 477 478
		hwif->drives[i].autotune = 1;
		hwif->drives[i].dn = hwif->channel * 2 + i;
	}

	if (!hwif->dma_base)
		return;

	hwif->atapi_dma = 1;
479 480

	hwif->ultra_mask = vdev->via_config->udma_mask;
Linus Torvalds's avatar
Linus Torvalds committed
481 482 483
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;

484 485
	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
		hwif->cbl = via82cxxx_cable_detect(hwif);
486

Linus Torvalds's avatar
Linus Torvalds committed
487 488 489 490 491 492 493
	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;
}

494 495 496 497 498 499 500
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}},
501 502 503
		.bootable	= ON_BOARD,
		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST
				| IDE_HFLAG_PIO_NO_DOWNGRADE,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
504
		.pio_mask	= ATA_PIO5,
505 506 507 508 509 510 511
	},{	/* 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,
512 513
		.host_flags	= IDE_HFLAG_PIO_NO_BLACKLIST
				| IDE_HFLAG_PIO_NO_DOWNGRADE,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
514
		.pio_mask	= ATA_PIO5,
515
	}
Linus Torvalds's avatar
Linus Torvalds committed
516 517 518 519
};

static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
520 521 522 523 524 525 526 527 528 529 530
	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;
	}
531
	return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]);
Linus Torvalds's avatar
Linus Torvalds committed
532 533 534 535 536
}

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},
537
	{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_6410,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
538
	{ 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
539 540 541 542 543 544 545 546 547 548
	{ 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,
};

549
static int __init via_ide_init(void)
Linus Torvalds's avatar
Linus Torvalds committed
550 551 552 553 554 555 556 557 558
{
	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");