2 * linux/drivers/ide/pci/pdc202xx_old.c Version 0.51 Jul 27, 2007
4 * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
5 * Copyright (C) 2006-2007 MontaVista Software, Inc.
6 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
8 * Promise Ultra33 cards with BIOS v1.20 through 1.28 will need this
9 * compiled into the kernel if you have more than one card installed.
10 * Note that BIOS v1.29 is reported to fix the problem. Since this is
11 * safe chipset tuning, including this support is harmless
13 * Promise Ultra66 cards with BIOS v1.11 this
14 * compiled into the kernel if you have more than one card installed.
16 * Promise Ultra100 cards.
18 * The latest chipset code will support the following ::
19 * Three Ultra33 controllers and 12 drives.
20 * 8 are UDMA supported and 4 are limited to DMA mode 2 multi-word.
21 * The 8/4 ratio is a BIOS code limit by promise.
23 * UNLESS you enable "CONFIG_PDC202XX_BURST"
28 * Portions Copyright (C) 1999 Promise Technology, Inc.
29 * Author: Frank Tiernan (frankt@promise.com)
30 * Released under terms of General Public License
33 #include <linux/types.h>
34 #include <linux/module.h>
35 #include <linux/kernel.h>
36 #include <linux/delay.h>
37 #include <linux/timer.h>
39 #include <linux/ioport.h>
40 #include <linux/blkdev.h>
41 #include <linux/hdreg.h>
42 #include <linux/interrupt.h>
43 #include <linux/pci.h>
44 #include <linux/init.h>
45 #include <linux/ide.h>
50 #define PDC202XX_DEBUG_DRIVE_INFO 0
52 static const char *pdc_quirk_drives[] = {
53 "QUANTUM FIREBALLlct08 08",
54 "QUANTUM FIREBALLP KA6.4",
55 "QUANTUM FIREBALLP KA9.1",
56 "QUANTUM FIREBALLP LM20.4",
57 "QUANTUM FIREBALLP KX13.6",
58 "QUANTUM FIREBALLP KX20.5",
59 "QUANTUM FIREBALLP KX27.3",
60 "QUANTUM FIREBALLP LM20.5",
64 static void pdc_old_disable_66MHz_clock(ide_hwif_t *);
66 static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
68 ide_hwif_t *hwif = HWIF(drive);
69 struct pci_dev *dev = hwif->pci_dev;
70 u8 drive_pci = 0x60 + (drive->dn << 2);
71 u8 speed = ide_rate_filter(drive, xferspeed);
73 u8 AP = 0, BP = 0, CP = 0;
74 u8 TA = 0, TB = 0, TC = 0;
76 #if PDC202XX_DEBUG_DRIVE_INFO
78 pci_read_config_dword(dev, drive_pci, &drive_conf);
82 * TODO: do this once per channel
84 if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
85 pdc_old_disable_66MHz_clock(hwif);
87 pci_read_config_byte(dev, drive_pci, &AP);
88 pci_read_config_byte(dev, drive_pci + 1, &BP);
89 pci_read_config_byte(dev, drive_pci + 2, &CP);
93 case XFER_UDMA_4: TB = 0x20; TC = 0x01; break;
94 case XFER_UDMA_2: TB = 0x20; TC = 0x01; break;
96 case XFER_UDMA_1: TB = 0x40; TC = 0x02; break;
98 case XFER_MW_DMA_2: TB = 0x60; TC = 0x03; break;
99 case XFER_MW_DMA_1: TB = 0x60; TC = 0x04; break;
100 case XFER_MW_DMA_0: TB = 0xE0; TC = 0x0F; break;
101 case XFER_SW_DMA_2: TB = 0x60; TC = 0x05; break;
102 case XFER_SW_DMA_1: TB = 0x80; TC = 0x06; break;
103 case XFER_SW_DMA_0: TB = 0xC0; TC = 0x0B; break;
104 case XFER_PIO_4: TA = 0x01; TB = 0x04; break;
105 case XFER_PIO_3: TA = 0x02; TB = 0x06; break;
106 case XFER_PIO_2: TA = 0x03; TB = 0x08; break;
107 case XFER_PIO_1: TA = 0x05; TB = 0x0C; break;
109 default: TA = 0x09; TB = 0x13; break;
112 if (speed < XFER_SW_DMA_0) {
114 * preserve SYNC_INT / ERDDY_EN bits while clearing
115 * Prefetch_EN / IORDY_EN / PA[3:0] bits of register A
118 if (drive->id->capability & 4)
119 AP |= 0x20; /* set IORDY_EN bit */
120 if (drive->media == ide_disk)
121 AP |= 0x10; /* set Prefetch_EN bit */
122 /* clear PB[4:0] bits of register B */
124 pci_write_config_byte(dev, drive_pci, AP | TA);
125 pci_write_config_byte(dev, drive_pci + 1, BP | TB);
127 /* clear MB[2:0] bits of register B */
129 /* clear MC[3:0] bits of register C */
131 pci_write_config_byte(dev, drive_pci + 1, BP | TB);
132 pci_write_config_byte(dev, drive_pci + 2, CP | TC);
135 #if PDC202XX_DEBUG_DRIVE_INFO
136 printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
137 drive->name, ide_xfer_verbose(speed),
138 drive->dn, drive_conf);
139 pci_read_config_dword(dev, drive_pci, &drive_conf);
140 printk("0x%08x\n", drive_conf);
143 return ide_config_drive_speed(drive, speed);
146 static void pdc202xx_tune_drive(ide_drive_t *drive, u8 pio)
148 pio = ide_get_best_pio_mode(drive, pio, 4);
149 pdc202xx_tune_chipset(drive, XFER_PIO_0 + pio);
152 static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
154 u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
156 pci_read_config_word(hwif->pci_dev, 0x50, &CIS);
158 return (CIS & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
162 * Set the control register to use the 66MHz system
163 * clock for UDMA 3/4/5 mode operation when necessary.
165 * FIXME: this register is shared by both channels, some locking is needed
167 * It may also be possible to leave the 66MHz clock on
168 * and readjust the timing parameters.
170 static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif)
172 unsigned long clock_reg = hwif->dma_master + 0x11;
173 u8 clock = inb(clock_reg);
175 outb(clock | (hwif->channel ? 0x08 : 0x02), clock_reg);
178 static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif)
180 unsigned long clock_reg = hwif->dma_master + 0x11;
181 u8 clock = inb(clock_reg);
183 outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
186 static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
188 drive->init_speed = 0;
190 if (ide_tune_dma(drive))
193 if (ide_use_fast_pio(drive))
194 pdc202xx_tune_drive(drive, 255);
199 static int pdc202xx_quirkproc (ide_drive_t *drive)
201 const char **list, *model = drive->id->model;
203 for (list = pdc_quirk_drives; *list != NULL; list++)
204 if (strstr(model, *list) != NULL)
209 static void pdc202xx_old_ide_dma_start(ide_drive_t *drive)
211 if (drive->current_speed > XFER_UDMA_2)
212 pdc_old_enable_66MHz_clock(drive->hwif);
213 if (drive->media != ide_disk || drive->addressing == 1) {
214 struct request *rq = HWGROUP(drive)->rq;
215 ide_hwif_t *hwif = HWIF(drive);
216 unsigned long high_16 = hwif->dma_master;
217 unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
219 u8 clock = inb(high_16 + 0x11);
221 outb(clock | (hwif->channel ? 0x08 : 0x02), high_16 + 0x11);
222 word_count = (rq->nr_sectors << 8);
223 word_count = (rq_data_dir(rq) == READ) ?
224 word_count | 0x05000000 :
225 word_count | 0x06000000;
226 outl(word_count, atapi_reg);
228 ide_dma_start(drive);
231 static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
233 if (drive->media != ide_disk || drive->addressing == 1) {
234 ide_hwif_t *hwif = HWIF(drive);
235 unsigned long high_16 = hwif->dma_master;
236 unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
239 outl(0, atapi_reg); /* zero out extra */
240 clock = inb(high_16 + 0x11);
241 outb(clock & ~(hwif->channel ? 0x08:0x02), high_16 + 0x11);
243 if (drive->current_speed > XFER_UDMA_2)
244 pdc_old_disable_66MHz_clock(drive->hwif);
245 return __ide_dma_end(drive);
248 static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
250 ide_hwif_t *hwif = HWIF(drive);
251 unsigned long high_16 = hwif->dma_master;
252 u8 dma_stat = inb(hwif->dma_status);
253 u8 sc1d = inb(high_16 + 0x001d);
256 /* bit7: Error, bit6: Interrupting, bit5: FIFO Full, bit4: FIFO Empty */
257 if ((sc1d & 0x50) == 0x50)
259 else if ((sc1d & 0x40) == 0x40)
260 return (dma_stat & 4) == 4;
262 /* bit3: Error, bit2: Interrupting, bit1: FIFO Full, bit0: FIFO Empty */
263 if ((sc1d & 0x05) == 0x05)
265 else if ((sc1d & 0x04) == 0x04)
266 return (dma_stat & 4) == 4;
269 return (dma_stat & 4) == 4; /* return 1 if INTR asserted */
272 static void pdc202xx_dma_lost_irq(ide_drive_t *drive)
274 ide_hwif_t *hwif = HWIF(drive);
276 if (hwif->resetproc != NULL)
277 hwif->resetproc(drive);
279 ide_dma_lost_irq(drive);
282 static void pdc202xx_dma_timeout(ide_drive_t *drive)
284 ide_hwif_t *hwif = HWIF(drive);
286 if (hwif->resetproc != NULL)
287 hwif->resetproc(drive);
289 ide_dma_timeout(drive);
292 static void pdc202xx_reset_host (ide_hwif_t *hwif)
294 unsigned long high_16 = hwif->dma_master;
295 u8 udma_speed_flag = inb(high_16 | 0x001f);
297 outb(udma_speed_flag | 0x10, high_16 | 0x001f);
299 outb(udma_speed_flag & ~0x10, high_16 | 0x001f);
300 mdelay(2000); /* 2 seconds ?! */
302 printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
303 hwif->channel ? "Secondary" : "Primary");
306 static void pdc202xx_reset (ide_drive_t *drive)
308 ide_hwif_t *hwif = HWIF(drive);
309 ide_hwif_t *mate = hwif->mate;
311 pdc202xx_reset_host(hwif);
312 pdc202xx_reset_host(mate);
313 pdc202xx_tune_drive(drive, 255);
316 static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev,
322 static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
324 struct pci_dev *dev = hwif->pci_dev;
326 /* PDC20265 has problems with large LBA48 requests */
327 if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
328 (dev->device == PCI_DEVICE_ID_PROMISE_20265))
332 hwif->tuneproc = &pdc202xx_tune_drive;
333 hwif->quirkproc = &pdc202xx_quirkproc;
335 if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246)
336 hwif->resetproc = &pdc202xx_reset;
338 hwif->speedproc = &pdc202xx_tune_chipset;
340 hwif->err_stops_fifo = 1;
342 hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
344 if (hwif->dma_base == 0)
347 hwif->ultra_mask = hwif->cds->udma_mask;
348 hwif->mwdma_mask = 0x07;
349 hwif->swdma_mask = 0x07;
352 hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
353 hwif->dma_lost_irq = &pdc202xx_dma_lost_irq;
354 hwif->dma_timeout = &pdc202xx_dma_timeout;
356 if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
357 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
358 hwif->cbl = pdc202xx_old_cable_detect(hwif);
360 hwif->dma_start = &pdc202xx_old_ide_dma_start;
361 hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
363 hwif->ide_dma_test_irq = &pdc202xx_old_ide_dma_test_irq;
367 hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
370 static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
372 u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;
375 ide_setup_dma(hwif, dmabase, 8);
379 udma_speed_flag = inb(dmabase | 0x1f);
380 primary_mode = inb(dmabase | 0x1a);
381 secondary_mode = inb(dmabase | 0x1b);
382 printk(KERN_INFO "%s: (U)DMA Burst Bit %sABLED " \
384 "Secondary %s Mode.\n", hwif->cds->name,
385 (udma_speed_flag & 1) ? "EN" : "DIS",
386 (primary_mode & 1) ? "MASTER" : "PCI",
387 (secondary_mode & 1) ? "MASTER" : "PCI" );
389 #ifdef CONFIG_PDC202XX_BURST
390 if (!(udma_speed_flag & 1)) {
391 printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ",
392 hwif->cds->name, udma_speed_flag,
393 (udma_speed_flag|1));
394 outb(udma_speed_flag | 1, dmabase | 0x1f);
395 printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
397 #endif /* CONFIG_PDC202XX_BURST */
399 ide_setup_dma(hwif, dmabase, 8);
402 static int __devinit init_setup_pdc202ata4(struct pci_dev *dev,
405 if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
406 u8 irq = 0, irq2 = 0;
407 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
409 pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2);
411 pci_write_config_byte(dev,
412 (PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */
413 printk(KERN_INFO "%s: pci-config space interrupt "
414 "mirror fixed.\n", d->name);
417 return ide_setup_pci_device(dev, d);
420 static int __devinit init_setup_pdc20265(struct pci_dev *dev,
423 if ((dev->bus->self) &&
424 (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
425 ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
426 (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
427 printk(KERN_INFO "ide: Skipping Promise PDC20265 "
428 "attached to I2O RAID controller.\n");
431 return ide_setup_pci_device(dev, d);
434 static int __devinit init_setup_pdc202xx(struct pci_dev *dev,
437 return ide_setup_pci_device(dev, d);
440 static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
443 .init_setup = init_setup_pdc202ata4,
444 .init_chipset = init_chipset_pdc202xx,
445 .init_hwif = init_hwif_pdc202xx,
446 .init_dma = init_dma_pdc202xx,
448 .bootable = OFF_BOARD,
450 .pio_mask = ATA_PIO4,
451 .udma_mask = 0x07, /* udma0-2 */
454 .init_setup = init_setup_pdc202ata4,
455 .init_chipset = init_chipset_pdc202xx,
456 .init_hwif = init_hwif_pdc202xx,
457 .init_dma = init_dma_pdc202xx,
459 .bootable = OFF_BOARD,
461 .pio_mask = ATA_PIO4,
462 .udma_mask = 0x1f, /* udma0-4 */
465 .init_setup = init_setup_pdc202ata4,
466 .init_chipset = init_chipset_pdc202xx,
467 .init_hwif = init_hwif_pdc202xx,
468 .init_dma = init_dma_pdc202xx,
470 .bootable = OFF_BOARD,
472 .pio_mask = ATA_PIO4,
473 .udma_mask = 0x1f, /* udma0-4 */
476 .init_setup = init_setup_pdc20265,
477 .init_chipset = init_chipset_pdc202xx,
478 .init_hwif = init_hwif_pdc202xx,
479 .init_dma = init_dma_pdc202xx,
481 .bootable = OFF_BOARD,
483 .pio_mask = ATA_PIO4,
484 .udma_mask = 0x3f, /* udma0-5 */
487 .init_setup = init_setup_pdc202xx,
488 .init_chipset = init_chipset_pdc202xx,
489 .init_hwif = init_hwif_pdc202xx,
490 .init_dma = init_dma_pdc202xx,
492 .bootable = OFF_BOARD,
494 .pio_mask = ATA_PIO4,
495 .udma_mask = 0x3f, /* udma0-5 */
500 * pdc202xx_init_one - called when a PDC202xx is found
501 * @dev: the pdc202xx device
502 * @id: the matching pci id
504 * Called when the PCI registration layer (or the IDE initialization)
505 * finds a device matching our IDE device tables.
508 static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
510 ide_pci_device_t *d = &pdc202xx_chipsets[id->driver_data];
512 return d->init_setup(dev, d);
515 static struct pci_device_id pdc202xx_pci_tbl[] = {
516 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
517 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
518 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
519 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
520 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
523 MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl);
525 static struct pci_driver driver = {
526 .name = "Promise_Old_IDE",
527 .id_table = pdc202xx_pci_tbl,
528 .probe = pdc202xx_init_one,
531 static int __init pdc202xx_ide_init(void)
533 return ide_pci_register_driver(&driver);
536 module_init(pdc202xx_ide_init);
538 MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
539 MODULE_DESCRIPTION("PCI driver module for older Promise IDE");
540 MODULE_LICENSE("GPL");