summaryrefslogtreecommitdiffstats
path: root/drivers/ide/pci/pdc202xx_old.c
blob: 7146fe3f6ba7bdffd0bc9bafaea0afd2e8b8ab64 (plain)
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
28
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
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
330
331
332
333
334
335
336
337
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
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
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
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
/*
 *  linux/drivers/ide/pci/pdc202xx_old.c	Version 0.36	Sept 11, 2002
 *
 *  Copyright (C) 1998-2002		Andre Hedrick <andre@linux-ide.org>
 *  Copyright (C) 2006-2007		MontaVista Software, Inc.
 *
 *  Promise Ultra33 cards with BIOS v1.20 through 1.28 will need this
 *  compiled into the kernel if you have more than one card installed.
 *  Note that BIOS v1.29 is reported to fix the problem.  Since this is
 *  safe chipset tuning, including this support is harmless
 *
 *  Promise Ultra66 cards with BIOS v1.11 this
 *  compiled into the kernel if you have more than one card installed.
 *
 *  Promise Ultra100 cards.
 *
 *  The latest chipset code will support the following ::
 *  Three Ultra33 controllers and 12 drives.
 *  8 are UDMA supported and 4 are limited to DMA mode 2 multi-word.
 *  The 8/4 ratio is a BIOS code limit by promise.
 *
 *  UNLESS you enable "CONFIG_PDC202XX_BURST"
 *
 */

/*
 *  Portions Copyright (C) 1999 Promise Technology, Inc.
 *  Author: Frank Tiernan (frankt@promise.com)
 *  Released under terms of General Public License
 */

#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>

#include <asm/io.h>
#include <asm/irq.h>

#define PDC202XX_DEBUG_DRIVE_INFO	0

static const char *pdc_quirk_drives[] = {
	"QUANTUM FIREBALLlct08 08",
	"QUANTUM FIREBALLP KA6.4",
	"QUANTUM FIREBALLP KA9.1",
	"QUANTUM FIREBALLP LM20.4",
	"QUANTUM FIREBALLP KX13.6",
	"QUANTUM FIREBALLP KX20.5",
	"QUANTUM FIREBALLP KX27.3",
	"QUANTUM FIREBALLP LM20.5",
	NULL
};

/* A Register */
#define	SYNC_ERRDY_EN	0xC0

#define	SYNC_IN		0x80	/* control bit, different for master vs. slave drives */
#define	ERRDY_EN	0x40	/* control bit, different for master vs. slave drives */
#define	IORDY_EN	0x20	/* PIO: IOREADY */
#define	PREFETCH_EN	0x10	/* PIO: PREFETCH */

#define	PA3		0x08	/* PIO"A" timing */
#define	PA2		0x04	/* PIO"A" timing */
#define	PA1		0x02	/* PIO"A" timing */
#define	PA0		0x01	/* PIO"A" timing */

/* B Register */

#define	MB2		0x80	/* DMA"B" timing */
#define	MB1		0x40	/* DMA"B" timing */
#define	MB0		0x20	/* DMA"B" timing */

#define	PB4		0x10	/* PIO_FORCE 1:0 */

#define	PB3		0x08	/* PIO"B" timing */	/* PIO flow Control mode */
#define	PB2		0x04	/* PIO"B" timing */	/* PIO 4 */
#define	PB1		0x02	/* PIO"B" timing */	/* PIO 3 half */
#define	PB0		0x01	/* PIO"B" timing */	/* PIO 3 other half */

/* C Register */
#define	IORDYp_NO_SPEED	0x4F
#define	SPEED_DIS	0x0F

#define	DMARQp		0x80
#define	IORDYp		0x40
#define	DMAR_EN		0x20
#define	DMAW_EN		0x10

#define	MC3		0x08	/* DMA"C" timing */
#define	MC2		0x04	/* DMA"C" timing */
#define	MC1		0x02	/* DMA"C" timing */
#define	MC0		0x01	/* DMA"C" timing */

static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
{
	ide_hwif_t *hwif	= HWIF(drive);
	struct pci_dev *dev	= hwif->pci_dev;
	u8 drive_pci		= 0x60 + (drive->dn << 2);
	u8 speed		= ide_rate_filter(drive, xferspeed);

	u32			drive_conf;
	u8			AP, BP, CP, DP;
	u8			TA = 0, TB = 0, TC = 0;

	if (drive->media != ide_disk &&
		drive->media != ide_cdrom && speed < XFER_SW_DMA_0)
		return -1;

	pci_read_config_dword(dev, drive_pci, &drive_conf);
	pci_read_config_byte(dev, (drive_pci), &AP);
	pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
	pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
	pci_read_config_byte(dev, (drive_pci)|0x03, &DP);

	if (speed < XFER_SW_DMA_0) {
		if ((AP & 0x0F) || (BP & 0x07)) {
			/* clear PIO modes of lower 8421 bits of A Register */
			pci_write_config_byte(dev, (drive_pci), AP &~0x0F);
			pci_read_config_byte(dev, (drive_pci), &AP);

			/* clear PIO modes of lower 421 bits of B Register */
			pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0x07);
			pci_read_config_byte(dev, (drive_pci)|0x01, &BP);

			pci_read_config_byte(dev, (drive_pci), &AP);
			pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
		}
	} else {
		if ((BP & 0xF0) && (CP & 0x0F)) {
			/* clear DMA modes of upper 842 bits of B Register */
			/* clear PIO forced mode upper 1 bit of B Register */
			pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0xF0);
			pci_read_config_byte(dev, (drive_pci)|0x01, &BP);

			/* clear DMA modes of lower 8421 bits of C Register */
			pci_write_config_byte(dev, (drive_pci)|0x02, CP &~0x0F);
			pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
		}
	}

	pci_read_config_byte(dev, (drive_pci), &AP);
	pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
	pci_read_config_byte(dev, (drive_pci)|0x02, &CP);

	switch(speed) {
		case XFER_UDMA_6:	speed = XFER_UDMA_5;
		case XFER_UDMA_5:
		case XFER_UDMA_4:	TB = 0x20; TC = 0x01; break;
		case XFER_UDMA_2:	TB = 0x20; TC = 0x01; break;
		case XFER_UDMA_3:
		case XFER_UDMA_1:	TB = 0x40; TC = 0x02; break;
		case XFER_UDMA_0:
		case XFER_MW_DMA_2:	TB = 0x60; TC = 0x03; break;
		case XFER_MW_DMA_1:	TB = 0x60; TC = 0x04; break;
		case XFER_MW_DMA_0:
		case XFER_SW_DMA_2:	TB = 0x60; TC = 0x05; break;
		case XFER_SW_DMA_1:	TB = 0x80; TC = 0x06; break;
		case XFER_SW_DMA_0:	TB = 0xC0; TC = 0x0B; break;
		case XFER_PIO_4:	TA = 0x01; TB = 0x04; break;
		case XFER_PIO_3:	TA = 0x02; TB = 0x06; break;
		case XFER_PIO_2:	TA = 0x03; TB = 0x08; break;
		case XFER_PIO_1:	TA = 0x05; TB = 0x0C; break;
		case XFER_PIO_0:
		default:		TA = 0x09; TB = 0x13; break;
	}

	if (speed < XFER_SW_DMA_0) {
		pci_write_config_byte(dev, (drive_pci), AP|TA);
		pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
	} else {
		pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
		pci_write_config_byte(dev, (drive_pci)|0x02, CP|TC);
	}

#if PDC202XX_DEBUG_DRIVE_INFO
	printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
		drive->name, ide_xfer_verbose(speed),
		drive->dn, drive_conf);
		pci_read_config_dword(dev, drive_pci, &drive_conf);
	printk("0x%08x\n", drive_conf);
#endif /* PDC202XX_DEBUG_DRIVE_INFO */

	return (ide_config_drive_speed(drive, speed));
}


static void pdc202xx_tune_drive(ide_drive_t *drive, u8 pio)
{
	pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
	pdc202xx_tune_chipset(drive, XFER_PIO_0 + pio);
}

static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
{
	u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
	pci_read_config_word(hwif->pci_dev, 0x50, &CIS);
	return (CIS & mask) ? 1 : 0;
}

/*
 * Set the control register to use the 66MHz system
 * clock for UDMA 3/4/5 mode operation when necessary.
 *
 * It may also be possible to leave the 66MHz clock on
 * and readjust the timing parameters.
 */
static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif)
{
	unsigned long clock_reg = hwif->dma_master + 0x11;
	u8 clock = inb(clock_reg);

	outb(clock | (hwif->channel ? 0x08 : 0x02), clock_reg);
}

static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif)
{
	unsigned long clock_reg = hwif->dma_master + 0x11;
	u8 clock = inb(clock_reg);

	outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
}

static int config_chipset_for_dma (ide_drive_t *drive)
{
	struct hd_driveid *id	= drive->id;
	ide_hwif_t *hwif	= HWIF(drive);
	struct pci_dev *dev	= hwif->pci_dev;
	u32 drive_conf		= 0;
	u8 drive_pci		= 0x60 + (drive->dn << 2);
	u8 test1 = 0, test2 = 0, speed = -1;
	u8 AP = 0;

	if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
		pdc_old_disable_66MHz_clock(drive->hwif);

	drive_pci = 0x60 + (drive->dn << 2);
	pci_read_config_dword(dev, drive_pci, &drive_conf);
	if ((drive_conf != 0x004ff304) && (drive_conf != 0x004ff3c4))
		goto chipset_is_set;

	pci_read_config_byte(dev, drive_pci, &test1);
	if (!(test1 & SYNC_ERRDY_EN)) {
		if (drive->select.b.unit & 0x01) {
			pci_read_config_byte(dev, drive_pci - 4, &test2);
			if ((test2 & SYNC_ERRDY_EN) &&
			    !(test1 & SYNC_ERRDY_EN)) {
				pci_write_config_byte(dev, drive_pci,
					test1|SYNC_ERRDY_EN);
			}
		} else {
			pci_write_config_byte(dev, drive_pci,
				test1|SYNC_ERRDY_EN);
		}
	}

chipset_is_set:

	pci_read_config_byte(dev, (drive_pci), &AP);
	if (id->capability & 4) /* IORDY_EN */
		pci_write_config_byte(dev, (drive_pci), AP|IORDY_EN);
	pci_read_config_byte(dev, (drive_pci), &AP);
	if (drive->media == ide_disk)	/* PREFETCH_EN */
		pci_write_config_byte(dev, (drive_pci), AP|PREFETCH_EN);

	speed = ide_max_dma_mode(drive);

	if (!(speed)) {
		/* restore original pci-config space */
		pci_write_config_dword(dev, drive_pci, drive_conf);
		return 0;
	}

	(void) hwif->speedproc(drive, speed);
	return ide_dma_enable(drive);
}

static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
{
	drive->init_speed = 0;

	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
		return 0;

	if (ide_use_fast_pio(drive))
		pdc202xx_tune_drive(drive, 255);

	return -1;
}

static int pdc202xx_quirkproc (ide_drive_t *drive)
{
	const char **list, *model = drive->id->model;

	for (list = pdc_quirk_drives; *list != NULL; list++)
		if (strstr(model, *list) != NULL)
			return 2;
	return 0;
}

static void pdc202xx_old_ide_dma_start(ide_drive_t *drive)
{
	if (drive->current_speed > XFER_UDMA_2)
		pdc_old_enable_66MHz_clock(drive->hwif);
	if (drive->media != ide_disk || drive->addressing == 1) {
		struct request *rq	= HWGROUP(drive)->rq;
		ide_hwif_t *hwif	= HWIF(drive);
		unsigned long high_16   = hwif->dma_master;
		unsigned long atapi_reg	= high_16 + (hwif->channel ? 0x24 : 0x20);
		u32 word_count	= 0;
		u8 clock = inb(high_16 + 0x11);

		outb(clock | (hwif->channel ? 0x08 : 0x02), high_16 + 0x11);
		word_count = (rq->nr_sectors << 8);
		word_count = (rq_data_dir(rq) == READ) ?
					word_count | 0x05000000 :
					word_count | 0x06000000;
		outl(word_count, atapi_reg);
	}
	ide_dma_start(drive);
}

static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
{
	if (drive->media != ide_disk || drive->addressing == 1) {
		ide_hwif_t *hwif	= HWIF(drive);
		unsigned long high_16	= hwif->dma_master;
		unsigned long atapi_reg	= high_16 + (hwif->channel ? 0x24 : 0x20);
		u8 clock		= 0;

		outl(0, atapi_reg); /* zero out extra */
		clock = inb(high_16 + 0x11);
		outb(clock & ~(hwif->channel ? 0x08:0x02), high_16 + 0x11);
	}
	if (drive->current_speed > XFER_UDMA_2)
		pdc_old_disable_66MHz_clock(drive->hwif);
	return __ide_dma_end(drive);
}

static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
{
	ide_hwif_t *hwif	= HWIF(drive);
	unsigned long high_16	= hwif->dma_master;
	u8 dma_stat		= inb(hwif->dma_status);
	u8 sc1d			= inb(high_16 + 0x001d);

	if (hwif->channel) {
		/* bit7: Error, bit6: Interrupting, bit5: FIFO Full, bit4: FIFO Empty */
		if ((sc1d & 0x50) == 0x50)
			goto somebody_else;
		else if ((sc1d & 0x40) == 0x40)
			return (dma_stat & 4) == 4;
	} else {
		/* bit3: Error, bit2: Interrupting, bit1: FIFO Full, bit0: FIFO Empty */
		if ((sc1d & 0x05) == 0x05)
			goto somebody_else;
		else if ((sc1d & 0x04) == 0x04)
			return (dma_stat & 4) == 4;
	}
somebody_else:
	return (dma_stat & 4) == 4;	/* return 1 if INTR asserted */
}

static int pdc202xx_ide_dma_lostirq(ide_drive_t *drive)
{
	if (HWIF(drive)->resetproc != NULL)
		HWIF(drive)->resetproc(drive);
	return __ide_dma_lostirq(drive);
}

static int pdc202xx_ide_dma_timeout(ide_drive_t *drive)
{
	if (HWIF(drive)->resetproc != NULL)
		HWIF(drive)->resetproc(drive);
	return __ide_dma_timeout(drive);
}

static void pdc202xx_reset_host (ide_hwif_t *hwif)
{
	unsigned long high_16	= hwif->dma_master;
	u8 udma_speed_flag	= inb(high_16 | 0x001f);

	outb(udma_speed_flag | 0x10, high_16 | 0x001f);
	mdelay(100);
	outb(udma_speed_flag & ~0x10, high_16 | 0x001f);
	mdelay(2000);	/* 2 seconds ?! */

	printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
		hwif->channel ? "Secondary" : "Primary");
}

static void pdc202xx_reset (ide_drive_t *drive)
{
	ide_hwif_t *hwif	= HWIF(drive);
	ide_hwif_t *mate	= hwif->mate;
	
	pdc202xx_reset_host(hwif);
	pdc202xx_reset_host(mate);
	pdc202xx_tune_drive(drive, 255);
}

static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev,
							const char *name)
{
	/* This doesn't appear needed */
	if (dev->resource[PCI_ROM_RESOURCE].start) {
		pci_write_config_dword(dev, PCI_ROM_ADDRESS,
			dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
		printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
			(unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
	}

	return dev->irq;
}

static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
{
	struct pci_dev *dev = hwif->pci_dev;

	/* PDC20265 has problems with large LBA48 requests */
	if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
	    (dev->device == PCI_DEVICE_ID_PROMISE_20265))
		hwif->rqsize = 256;

	hwif->autodma = 0;
	hwif->tuneproc  = &pdc202xx_tune_drive;
	hwif->quirkproc = &pdc202xx_quirkproc;

	if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246)
		hwif->resetproc = &pdc202xx_reset;

	hwif->speedproc = &pdc202xx_tune_chipset;

	hwif->drives[0].autotune = hwif->drives[1].autotune = 1;

	hwif->ultra_mask = hwif->cds->udma_mask;
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;
	hwif->atapi_dma = 1;

	hwif->err_stops_fifo = 1;

	hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
	hwif->ide_dma_lostirq = &pdc202xx_ide_dma_lostirq;
	hwif->ide_dma_timeout = &pdc202xx_ide_dma_timeout;

	if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
		if (!(hwif->udma_four))
			hwif->udma_four = (pdc202xx_old_cable_detect(hwif)) ? 0 : 1;
		hwif->dma_start = &pdc202xx_old_ide_dma_start;
		hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
	} 
	hwif->ide_dma_test_irq = &pdc202xx_old_ide_dma_test_irq;

	if (!noautodma)
		hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
}

static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
{
	u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;

	if (hwif->channel) {
		ide_setup_dma(hwif, dmabase, 8);
		return;
	}

	udma_speed_flag	= inb(dmabase | 0x1f);
	primary_mode	= inb(dmabase | 0x1a);
	secondary_mode	= inb(dmabase | 0x1b);
	printk(KERN_INFO "%s: (U)DMA Burst Bit %sABLED " \
		"Primary %s Mode " \
		"Secondary %s Mode.\n", hwif->cds->name,
		(udma_speed_flag & 1) ? "EN" : "DIS",
		(primary_mode & 1) ? "MASTER" : "PCI",
		(secondary_mode & 1) ? "MASTER" : "PCI" );

#ifdef CONFIG_PDC202XX_BURST
	if (!(udma_speed_flag & 1)) {
		printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ",
			hwif->cds->name, udma_speed_flag,
			(udma_speed_flag|1));
		outb(udma_speed_flag | 1, dmabase | 0x1f);
		printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
	}
#endif /* CONFIG_PDC202XX_BURST */

	ide_setup_dma(hwif, dmabase, 8);
}

static int __devinit init_setup_pdc202ata4(struct pci_dev *dev,
					   ide_pci_device_t *d)
{
	if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
		u8 irq = 0, irq2 = 0;
		pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
		/* 0xbc */
		pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2);
		if (irq != irq2) {
			pci_write_config_byte(dev,
				(PCI_INTERRUPT_LINE)|0x80, irq);     /* 0xbc */
			printk(KERN_INFO "%s: pci-config space interrupt "
				"mirror fixed.\n", d->name);
		}
	}
	return ide_setup_pci_device(dev, d);
}

static int __devinit init_setup_pdc20265(struct pci_dev *dev,
					 ide_pci_device_t *d)
{
	if ((dev->bus->self) &&
	    (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
	    ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
	     (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
		printk(KERN_INFO "ide: Skipping Promise PDC20265 "
			"attached to I2O RAID controller.\n");
		return -ENODEV;
	}
	return ide_setup_pci_device(dev, d);
}

static int __devinit init_setup_pdc202xx(struct pci_dev *dev,
					 ide_pci_device_t *d)
{
	return ide_setup_pci_device(dev, d);
}

static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
	{	/* 0 */
		.name		= "PDC20246",
		.init_setup	= init_setup_pdc202ata4,
		.init_chipset	= init_chipset_pdc202xx,
		.init_hwif	= init_hwif_pdc202xx,
		.init_dma	= init_dma_pdc202xx,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.extra		= 16,
		.udma_mask	= 0x07, /* udma0-2 */
	},{	/* 1 */
		.name		= "PDC20262",
		.init_setup	= init_setup_pdc202ata4,
		.init_chipset	= init_chipset_pdc202xx,
		.init_hwif	= init_hwif_pdc202xx,
		.init_dma	= init_dma_pdc202xx,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.extra		= 48,
		.udma_mask	= 0x1f, /* udma0-4 */
	},{	/* 2 */
		.name		= "PDC20263",
		.init_setup	= init_setup_pdc202ata4,
		.init_chipset	= init_chipset_pdc202xx,
		.init_hwif	= init_hwif_pdc202xx,
		.init_dma	= init_dma_pdc202xx,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.extra		= 48,
		.udma_mask	= 0x1f, /* udma0-4 */
	},{	/* 3 */
		.name		= "PDC20265",
		.init_setup	= init_setup_pdc20265,
		.init_chipset	= init_chipset_pdc202xx,
		.init_hwif	= init_hwif_pdc202xx,
		.init_dma	= init_dma_pdc202xx,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.extra		= 48,
		.udma_mask	= 0x3f, /* udma0-5 */
	},{	/* 4 */
		.name		= "PDC20267",
		.init_setup	= init_setup_pdc202xx,
		.init_chipset	= init_chipset_pdc202xx,
		.init_hwif	= init_hwif_pdc202xx,
		.init_dma	= init_dma_pdc202xx,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.extra		= 48,
		.udma_mask	= 0x3f, /* udma0-5 */
	}
};

/**
 *	pdc202xx_init_one	-	called when a PDC202xx is found
 *	@dev: the pdc202xx device
 *	@id: the matching pci id
 *
 *	Called when the PCI registration layer (or the IDE initialization)
 *	finds a device matching our IDE device tables.
 */
 
static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	ide_pci_device_t *d = &pdc202xx_chipsets[id->driver_data];

	return d->init_setup(dev, d);
}

static struct pci_device_id pdc202xx_pci_tbl[] = {
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl);

static struct pci_driver driver = {
	.name		= "Promise_Old_IDE",
	.id_table	= pdc202xx_pci_tbl,
	.probe		= pdc202xx_init_one,
};

static int __init pdc202xx_ide_init(void)
{
	return ide_pci_register_driver(&driver);
}

module_init(pdc202xx_ide_init);

MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
MODULE_DESCRIPTION("PCI driver module for older Promise IDE");
MODULE_LICENSE("GPL");