pata_amd.c 18.8 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
/*
 * pata_amd.c 	- AMD PATA for new ATA layer
 *			  (C) 2005-2006 Red Hat Inc
 *			  Alan Cox <alan@redhat.com>
 *
 *  Based on pata-sil680. Errata information is taken from data sheets
 *  and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
 *  claimed by sata-nv.c.
 *
 *  TODO:
 *	Variable system clock when/if it makes sense
 *	Power management on ports
 *
 *
 *  Documentation publically available.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <scsi/scsi_host.h>
#include <linux/libata.h>

#define DRV_NAME "pata_amd"
J
Jeff Garzik 已提交
28
#define DRV_VERSION "0.3.9"
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121

/**
 *	timing_setup		-	shared timing computation and load
 *	@ap: ATA port being set up
 *	@adev: drive being configured
 *	@offset: port offset
 *	@speed: target speed
 *	@clock: clock multiplier (number of times 33MHz for this part)
 *
 *	Perform the actual timing set up for Nvidia or AMD PATA devices.
 *	The actual devices vary so they all call into this helper function
 *	providing the clock multipler and offset (because AMD and Nvidia put
 *	the ports at different locations).
 */

static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offset, int speed, int clock)
{
	static const unsigned char amd_cyc2udma[] = {
		6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7
	};

	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
	struct ata_device *peer = ata_dev_pair(adev);
	int dn = ap->port_no * 2 + adev->devno;
	struct ata_timing at, apeer;
	int T, UT;
	const int amd_clock = 33333;	/* KHz. */
	u8 t;

	T = 1000000000 / amd_clock;
	UT = T / min_t(int, max_t(int, clock, 1), 2);

	if (ata_timing_compute(adev, speed, &at, T, UT) < 0) {
		dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", speed);
		return;
	}

	if (peer) {
		/* This may be over conservative */
		if (peer->dma_mode) {
			ata_timing_compute(peer, peer->dma_mode, &apeer, T, UT);
			ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
		}
		ata_timing_compute(peer, peer->pio_mode, &apeer, T, UT);
		ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
	}

	if (speed == XFER_UDMA_5 && amd_clock <= 33333) at.udma = 1;
	if (speed == XFER_UDMA_6 && amd_clock <= 33333) at.udma = 15;

	/*
	 *	Now do the setup work
	 */

	/* Configure the address set up timing */
	pci_read_config_byte(pdev, offset + 0x0C, &t);
	t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
	pci_write_config_byte(pdev, offset + 0x0C , t);

	/* Configure the 8bit I/O timing */
	pci_write_config_byte(pdev, offset + 0x0E + (1 - (dn >> 1)),
		((FIT(at.act8b, 1, 16) - 1) << 4) | (FIT(at.rec8b, 1, 16) - 1));

	/* Drive timing */
	pci_write_config_byte(pdev, offset + 0x08 + (3 - dn),
		((FIT(at.active, 1, 16) - 1) << 4) | (FIT(at.recover, 1, 16) - 1));

	switch (clock) {
		case 1:
		t = at.udma ? (0xc0 | (FIT(at.udma, 2, 5) - 2)) : 0x03;
		break;

		case 2:
		t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 2, 10)]) : 0x03;
		break;

		case 3:
		t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 10)]) : 0x03;
		break;

		case 4:
		t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 15)]) : 0x03;
		break;

		default:
			return;
	}

	/* UDMA timing */
	pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t);
}

/**
T
Tejun Heo 已提交
122 123
 *	amd_pre_reset		-	perform reset handling
 *	@link: ATA link
124
 *	@deadline: deadline jiffies for the operation
125
 *
A
Alan Cox 已提交
126 127
 *	Reset sequence checking enable bits to see which ports are
 *	active.
128 129
 */

T
Tejun Heo 已提交
130
static int amd_pre_reset(struct ata_link *link, unsigned long deadline)
131 132 133 134 135 136
{
	static const struct pci_bits amd_enable_bits[] = {
		{ 0x40, 1, 0x02, 0x02 },
		{ 0x40, 1, 0x01, 0x01 }
	};

T
Tejun Heo 已提交
137
	struct ata_port *ap = link->ap;
138
	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
139

140 141
	if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no]))
		return -ENOENT;
142

T
Tejun Heo 已提交
143
	return ata_std_prereset(link, deadline);
144 145 146 147 148 149 150 151 152
}

static void amd_error_handler(struct ata_port *ap)
{
	return ata_bmdma_drive_eh(ap, amd_pre_reset,
				      ata_std_softreset, NULL,
				      ata_std_postreset);
}

A
Alan Cox 已提交
153
static int amd_cable_detect(struct ata_port *ap)
154
{
A
Alan Cox 已提交
155
	static const u32 bitmask[2] = {0x03, 0x0C};
156
	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
A
Alan Cox 已提交
157
	u8 ata66;
158

A
Alan Cox 已提交
159 160 161 162
	pci_read_config_byte(pdev, 0x42, &ata66);
	if (ata66 & bitmask[ap->port_no])
		return ATA_CBL_PATA80;
	return ATA_CBL_PATA40;
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
}

/**
 *	amd33_set_piomode	-	set initial PIO mode data
 *	@ap: ATA interface
 *	@adev: ATA device
 *
 *	Program the AMD registers for PIO mode.
 */

static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
}

static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
}

static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
}

static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
}

/**
 *	amd33_set_dmamode	-	set initial DMA mode data
 *	@ap: ATA interface
 *	@adev: ATA device
 *
 *	Program the MWDMA/UDMA modes for the AMD and Nvidia
 *	chipset.
 */

static void amd33_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->dma_mode, 1);
}

static void amd66_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->dma_mode, 2);
}

static void amd100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->dma_mode, 3);
}

static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
}


/**
 *	nv_probe_init	-	cable detection
T
Tejun Heo 已提交
225
 *	@lin: ATA link
226 227 228 229 230
 *
 *	Perform cable detection. The BIOS stores this in PCI config
 *	space for us.
 */

T
Tejun Heo 已提交
231
static int nv_pre_reset(struct ata_link *link, unsigned long deadline)
232
{
233 234 235 236
	static const struct pci_bits nv_enable_bits[] = {
		{ 0x50, 1, 0x02, 0x02 },
		{ 0x50, 1, 0x01, 0x01 }
	};
237

T
Tejun Heo 已提交
238
	struct ata_port *ap = link->ap;
239 240
	struct pci_dev *pdev = to_pci_dev(ap->host->dev);

241 242
	if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no]))
		return -ENOENT;
243

T
Tejun Heo 已提交
244
	return ata_std_prereset(link, deadline);
245 246 247 248 249 250 251 252
}

static void nv_error_handler(struct ata_port *ap)
{
	ata_bmdma_drive_eh(ap, nv_pre_reset,
			       ata_std_softreset, NULL,
			       ata_std_postreset);
}
A
Alan Cox 已提交
253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272

static int nv_cable_detect(struct ata_port *ap)
{
	static const u8 bitmask[2] = {0x03, 0x0C};
	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
	u8 ata66;
	u16 udma;
	int cbl;

	pci_read_config_byte(pdev, 0x52, &ata66);
	if (ata66 & bitmask[ap->port_no])
		cbl = ATA_CBL_PATA80;
	else
		cbl = ATA_CBL_PATA40;

 	/* We now have to double check because the Nvidia boxes BIOS
 	   doesn't always set the cable bits but does set mode bits */
 	pci_read_config_word(pdev, 0x62 - 2 * ap->port_no, &udma);
 	if ((udma & 0xC4) == 0xC4 || (udma & 0xC400) == 0xC400)
		cbl = ATA_CBL_PATA80;
273 274 275
	/* And a triple check across suspend/resume with ACPI around */
	if (ata_acpi_cbl_80wire(ap))
		cbl = ATA_CBL_PATA80;
A
Alan Cox 已提交
276 277 278
	return cbl;
}

279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329
/**
 *	nv100_set_piomode	-	set initial PIO mode data
 *	@ap: ATA interface
 *	@adev: ATA device
 *
 *	Program the AMD registers for PIO mode.
 */

static void nv100_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x50, adev->pio_mode, 3);
}

static void nv133_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x50, adev->pio_mode, 4);
}

/**
 *	nv100_set_dmamode	-	set initial DMA mode data
 *	@ap: ATA interface
 *	@adev: ATA device
 *
 *	Program the MWDMA/UDMA modes for the AMD and Nvidia
 *	chipset.
 */

static void nv100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x50, adev->dma_mode, 3);
}

static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
	timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
}

static struct scsi_host_template amd_sht = {
	.module			= THIS_MODULE,
	.name			= DRV_NAME,
	.ioctl			= ata_scsi_ioctl,
	.queuecommand		= ata_scsi_queuecmd,
	.can_queue		= ATA_DEF_QUEUE,
	.this_id		= ATA_SHT_THIS_ID,
	.sg_tablesize		= LIBATA_MAX_PRD,
	.cmd_per_lun		= ATA_SHT_CMD_PER_LUN,
	.emulated		= ATA_SHT_EMULATED,
	.use_clustering		= ATA_SHT_USE_CLUSTERING,
	.proc_name		= DRV_NAME,
	.dma_boundary		= ATA_DMA_BOUNDARY,
	.slave_configure	= ata_scsi_slave_config,
330
	.slave_destroy		= ata_scsi_slave_destroy,
331 332 333 334 335 336 337 338 339 340 341 342 343 344 345
	.bios_param		= ata_std_bios_param,
};

static struct ata_port_operations amd33_port_ops = {
	.set_piomode	= amd33_set_piomode,
	.set_dmamode	= amd33_set_dmamode,
	.mode_filter	= ata_pci_default_filter,
	.tf_load	= ata_tf_load,
	.tf_read	= ata_tf_read,
	.check_status 	= ata_check_status,
	.exec_command	= ata_exec_command,
	.dev_select 	= ata_std_dev_select,

	.freeze		= ata_bmdma_freeze,
	.thaw		= ata_bmdma_thaw,
A
Alan Cox 已提交
346
	.error_handler	= amd_error_handler,
347
	.post_internal_cmd = ata_bmdma_post_internal_cmd,
A
Alan Cox 已提交
348
	.cable_detect	= ata_cable_40wire,
349 350 351 352 353 354 355 356

	.bmdma_setup 	= ata_bmdma_setup,
	.bmdma_start 	= ata_bmdma_start,
	.bmdma_stop	= ata_bmdma_stop,
	.bmdma_status 	= ata_bmdma_status,

	.qc_prep 	= ata_qc_prep,
	.qc_issue	= ata_qc_issue_prot,
357

T
Tejun Heo 已提交
358
	.data_xfer	= ata_data_xfer,
359 360 361

	.irq_handler	= ata_interrupt,
	.irq_clear	= ata_bmdma_irq_clear,
362
	.irq_on		= ata_irq_on,
363

364
	.port_start	= ata_sff_port_start,
365 366 367 368 369 370 371 372 373 374 375 376 377 378
};

static struct ata_port_operations amd66_port_ops = {
	.set_piomode	= amd66_set_piomode,
	.set_dmamode	= amd66_set_dmamode,
	.mode_filter	= ata_pci_default_filter,
	.tf_load	= ata_tf_load,
	.tf_read	= ata_tf_read,
	.check_status 	= ata_check_status,
	.exec_command	= ata_exec_command,
	.dev_select 	= ata_std_dev_select,

	.freeze		= ata_bmdma_freeze,
	.thaw		= ata_bmdma_thaw,
A
Alan Cox 已提交
379
	.error_handler	= amd_error_handler,
380
	.post_internal_cmd = ata_bmdma_post_internal_cmd,
A
Alan Cox 已提交
381
	.cable_detect	= ata_cable_unknown,
382 383 384 385 386 387 388 389

	.bmdma_setup 	= ata_bmdma_setup,
	.bmdma_start 	= ata_bmdma_start,
	.bmdma_stop	= ata_bmdma_stop,
	.bmdma_status 	= ata_bmdma_status,

	.qc_prep 	= ata_qc_prep,
	.qc_issue	= ata_qc_issue_prot,
390

T
Tejun Heo 已提交
391
	.data_xfer	= ata_data_xfer,
392 393 394

	.irq_handler	= ata_interrupt,
	.irq_clear	= ata_bmdma_irq_clear,
395
	.irq_on		= ata_irq_on,
396

397
	.port_start	= ata_sff_port_start,
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413
};

static struct ata_port_operations amd100_port_ops = {
	.set_piomode	= amd100_set_piomode,
	.set_dmamode	= amd100_set_dmamode,
	.mode_filter	= ata_pci_default_filter,
	.tf_load	= ata_tf_load,
	.tf_read	= ata_tf_read,
	.check_status 	= ata_check_status,
	.exec_command	= ata_exec_command,
	.dev_select 	= ata_std_dev_select,

	.freeze		= ata_bmdma_freeze,
	.thaw		= ata_bmdma_thaw,
	.error_handler	= amd_error_handler,
	.post_internal_cmd = ata_bmdma_post_internal_cmd,
A
Alan Cox 已提交
414
	.cable_detect	= ata_cable_unknown,
415 416 417 418 419 420 421 422

	.bmdma_setup 	= ata_bmdma_setup,
	.bmdma_start 	= ata_bmdma_start,
	.bmdma_stop	= ata_bmdma_stop,
	.bmdma_status 	= ata_bmdma_status,

	.qc_prep 	= ata_qc_prep,
	.qc_issue	= ata_qc_issue_prot,
423

T
Tejun Heo 已提交
424
	.data_xfer	= ata_data_xfer,
425 426 427

	.irq_handler	= ata_interrupt,
	.irq_clear	= ata_bmdma_irq_clear,
428
	.irq_on		= ata_irq_on,
429

430
	.port_start	= ata_sff_port_start,
431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446
};

static struct ata_port_operations amd133_port_ops = {
	.set_piomode	= amd133_set_piomode,
	.set_dmamode	= amd133_set_dmamode,
	.mode_filter	= ata_pci_default_filter,
	.tf_load	= ata_tf_load,
	.tf_read	= ata_tf_read,
	.check_status 	= ata_check_status,
	.exec_command	= ata_exec_command,
	.dev_select 	= ata_std_dev_select,

	.freeze		= ata_bmdma_freeze,
	.thaw		= ata_bmdma_thaw,
	.error_handler	= amd_error_handler,
	.post_internal_cmd = ata_bmdma_post_internal_cmd,
A
Alan Cox 已提交
447
	.cable_detect	= amd_cable_detect,
448 449 450 451 452 453 454 455

	.bmdma_setup 	= ata_bmdma_setup,
	.bmdma_start 	= ata_bmdma_start,
	.bmdma_stop	= ata_bmdma_stop,
	.bmdma_status 	= ata_bmdma_status,

	.qc_prep 	= ata_qc_prep,
	.qc_issue	= ata_qc_issue_prot,
456

T
Tejun Heo 已提交
457
	.data_xfer	= ata_data_xfer,
458 459 460

	.irq_handler	= ata_interrupt,
	.irq_clear	= ata_bmdma_irq_clear,
461
	.irq_on		= ata_irq_on,
462

463
	.port_start	= ata_sff_port_start,
464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479
};

static struct ata_port_operations nv100_port_ops = {
	.set_piomode	= nv100_set_piomode,
	.set_dmamode	= nv100_set_dmamode,
	.mode_filter	= ata_pci_default_filter,
	.tf_load	= ata_tf_load,
	.tf_read	= ata_tf_read,
	.check_status 	= ata_check_status,
	.exec_command	= ata_exec_command,
	.dev_select 	= ata_std_dev_select,

	.freeze		= ata_bmdma_freeze,
	.thaw		= ata_bmdma_thaw,
	.error_handler	= nv_error_handler,
	.post_internal_cmd = ata_bmdma_post_internal_cmd,
A
Alan Cox 已提交
480
	.cable_detect	= nv_cable_detect,
481 482 483 484 485 486 487 488

	.bmdma_setup 	= ata_bmdma_setup,
	.bmdma_start 	= ata_bmdma_start,
	.bmdma_stop	= ata_bmdma_stop,
	.bmdma_status 	= ata_bmdma_status,

	.qc_prep 	= ata_qc_prep,
	.qc_issue	= ata_qc_issue_prot,
489

T
Tejun Heo 已提交
490
	.data_xfer	= ata_data_xfer,
491 492 493

	.irq_handler	= ata_interrupt,
	.irq_clear	= ata_bmdma_irq_clear,
494
	.irq_on		= ata_irq_on,
495

496
	.port_start	= ata_sff_port_start,
497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512
};

static struct ata_port_operations nv133_port_ops = {
	.set_piomode	= nv133_set_piomode,
	.set_dmamode	= nv133_set_dmamode,
	.mode_filter	= ata_pci_default_filter,
	.tf_load	= ata_tf_load,
	.tf_read	= ata_tf_read,
	.check_status 	= ata_check_status,
	.exec_command	= ata_exec_command,
	.dev_select 	= ata_std_dev_select,

	.freeze		= ata_bmdma_freeze,
	.thaw		= ata_bmdma_thaw,
	.error_handler	= nv_error_handler,
	.post_internal_cmd = ata_bmdma_post_internal_cmd,
A
Alan Cox 已提交
513
	.cable_detect	= nv_cable_detect,
514 515 516 517 518 519 520 521

	.bmdma_setup 	= ata_bmdma_setup,
	.bmdma_start 	= ata_bmdma_start,
	.bmdma_stop	= ata_bmdma_stop,
	.bmdma_status 	= ata_bmdma_status,

	.qc_prep 	= ata_qc_prep,
	.qc_issue	= ata_qc_issue_prot,
522

T
Tejun Heo 已提交
523
	.data_xfer	= ata_data_xfer,
524 525 526

	.irq_handler	= ata_interrupt,
	.irq_clear	= ata_bmdma_irq_clear,
527
	.irq_on		= ata_irq_on,
528

529
	.port_start	= ata_sff_port_start,
530 531 532 533
};

static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
T
Tejun Heo 已提交
534
	static const struct ata_port_info info[10] = {
535 536
		{	/* 0: AMD 7401 */
			.sht = &amd_sht,
537
			.flags = ATA_FLAG_SLAVE_POSS,
538 539 540 541 542 543 544
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,	/* No SWDMA */
			.udma_mask = 0x07,	/* UDMA 33 */
			.port_ops = &amd33_port_ops
		},
		{	/* 1: Early AMD7409 - no swdma */
			.sht = &amd_sht,
545
			.flags = ATA_FLAG_SLAVE_POSS,
546 547
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
548
			.udma_mask = ATA_UDMA4,	/* UDMA 66 */
549 550 551 552
			.port_ops = &amd66_port_ops
		},
		{	/* 2: AMD 7409, no swdma errata */
			.sht = &amd_sht,
553
			.flags = ATA_FLAG_SLAVE_POSS,
554 555
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
556
			.udma_mask = ATA_UDMA4,	/* UDMA 66 */
557 558 559 560
			.port_ops = &amd66_port_ops
		},
		{	/* 3: AMD 7411 */
			.sht = &amd_sht,
561
			.flags = ATA_FLAG_SLAVE_POSS,
562 563
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
564
			.udma_mask = ATA_UDMA5,	/* UDMA 100 */
565 566 567 568
			.port_ops = &amd100_port_ops
		},
		{	/* 4: AMD 7441 */
			.sht = &amd_sht,
569
			.flags = ATA_FLAG_SLAVE_POSS,
570 571
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
572
			.udma_mask = ATA_UDMA5,	/* UDMA 100 */
573 574 575 576
			.port_ops = &amd100_port_ops
		},
		{	/* 5: AMD 8111*/
			.sht = &amd_sht,
577
			.flags = ATA_FLAG_SLAVE_POSS,
578 579
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
580
			.udma_mask = ATA_UDMA6,	/* UDMA 133, no swdma */
581 582 583 584
			.port_ops = &amd133_port_ops
		},
		{	/* 6: AMD 8111 UDMA 100 (Serenade) */
			.sht = &amd_sht,
585
			.flags = ATA_FLAG_SLAVE_POSS,
586 587
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
588
			.udma_mask = ATA_UDMA5,	/* UDMA 100, no swdma */
589 590 591 592
			.port_ops = &amd133_port_ops
		},
		{	/* 7: Nvidia Nforce */
			.sht = &amd_sht,
593
			.flags = ATA_FLAG_SLAVE_POSS,
594 595
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
596
			.udma_mask = ATA_UDMA5,	/* UDMA 100 */
597 598 599 600
			.port_ops = &nv100_port_ops
		},
		{	/* 8: Nvidia Nforce2 and later */
			.sht = &amd_sht,
601
			.flags = ATA_FLAG_SLAVE_POSS,
602 603
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
604
			.udma_mask = ATA_UDMA6,	/* UDMA 133, no swdma */
605 606 607 608
			.port_ops = &nv133_port_ops
		},
		{	/* 9: AMD CS5536 (Geode companion) */
			.sht = &amd_sht,
609
			.flags = ATA_FLAG_SLAVE_POSS,
610 611
			.pio_mask = 0x1f,
			.mwdma_mask = 0x07,
612
			.udma_mask = ATA_UDMA5,	/* UDMA 100 */
613 614 615
			.port_ops = &amd100_port_ops
		}
	};
T
Tejun Heo 已提交
616
	const struct ata_port_info *ppi[] = { NULL, NULL };
617 618 619 620 621 622 623 624 625 626
	static int printed_version;
	int type = id->driver_data;
	u8 fifo;

	if (!printed_version++)
		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");

	pci_read_config_byte(pdev, 0x41, &fifo);

	/* Check for AMD7409 without swdma errata and if found adjust type */
627
	if (type == 1 && pdev->revision > 0x7)
628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645
		type = 2;

	/* Check for AMD7411 */
	if (type == 3)
		/* FIFO is broken */
		pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
	else
		pci_write_config_byte(pdev, 0x41, fifo | 0xF0);

	/* Serenade ? */
	if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
			 pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
		type = 6;	/* UDMA 100 only */

	if (type < 3)
		ata_pci_clear_simplex(pdev);

	/* And fire it up */
T
Tejun Heo 已提交
646 647
	ppi[0] = &info[type];
	return ata_pci_init_one(pdev, ppi);
648 649
}

650
#ifdef CONFIG_PM
A
Alan 已提交
651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666
static int amd_reinit_one(struct pci_dev *pdev)
{
	if (pdev->vendor == PCI_VENDOR_ID_AMD) {
		u8 fifo;
		pci_read_config_byte(pdev, 0x41, &fifo);
		if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
			/* FIFO is broken */
			pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
		else
			pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
		if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7409 ||
		    pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401)
		    	ata_pci_clear_simplex(pdev);
	}
	return ata_pci_device_resume(pdev);
}
667
#endif
A
Alan 已提交
668

669
static const struct pci_device_id amd[] = {
670 671 672 673 674 675 676 677 678 679 680 681 682 683 684
	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_COBRA_7401),		0 },
	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_VIPER_7409),		1 },
	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_VIPER_7411),		3 },
	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_OPUS_7441),		4 },
	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_8111_IDE),		5 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_IDE),	7 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE),	8 },
685 686
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE),	8 },
687 688
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE),	8 },
	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE),	8 },
689 690 691
	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_IDE),		9 },

	{ },
692 693 694
};

static struct pci_driver amd_pci_driver = {
695
	.name 		= DRV_NAME,
696 697
	.id_table	= amd,
	.probe 		= amd_init_one,
A
Alan 已提交
698
	.remove		= ata_pci_remove_one,
699
#ifdef CONFIG_PM
A
Alan 已提交
700 701
	.suspend	= ata_pci_device_suspend,
	.resume		= amd_reinit_one,
702
#endif
703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722
};

static int __init amd_init(void)
{
	return pci_register_driver(&amd_pci_driver);
}

static void __exit amd_exit(void)
{
	pci_unregister_driver(&amd_pci_driver);
}

MODULE_AUTHOR("Alan Cox");
MODULE_DESCRIPTION("low-level driver for AMD PATA IDE");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, amd);
MODULE_VERSION(DRV_VERSION);

module_init(amd_init);
module_exit(amd_exit);