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 void pdc202xx_set_mode(ide_drive_t *drive, const u8 speed)
68 ide_hwif_t *hwif = HWIF(drive);
69 struct pci_dev *dev = hwif->pci_dev;
70 u8 drive_pci = 0x60 + (drive->dn << 2);
72 u8 AP = 0, BP = 0, CP = 0;
73 u8 TA = 0, TB = 0, TC = 0;
75 #if PDC202XX_DEBUG_DRIVE_INFO
77 pci_read_config_dword(dev, drive_pci, &drive_conf);
81 * TODO: do this once per channel
83 if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
84 pdc_old_disable_66MHz_clock(hwif);
86 pci_read_config_byte(dev, drive_pci, &AP);
87 pci_read_config_byte(dev, drive_pci + 1, &BP);
88 pci_read_config_byte(dev, drive_pci + 2, &CP);
92 case XFER_UDMA_4: TB = 0x20; TC = 0x01; break;
93 case XFER_UDMA_2: TB = 0x20; TC = 0x01; break;
95 case XFER_UDMA_1: TB = 0x40; TC = 0x02; break;
97 case XFER_MW_DMA_2: TB = 0x60; TC = 0x03; break;
98 case XFER_MW_DMA_1: TB = 0x60; TC = 0x04; break;
99 case XFER_MW_DMA_0: TB = 0xE0; TC = 0x0F; break;
100 case XFER_SW_DMA_2: TB = 0x60; TC = 0x05; break;
101 case XFER_SW_DMA_1: TB = 0x80; TC = 0x06; break;
102 case XFER_SW_DMA_0: TB = 0xC0; TC = 0x0B; break;
103 case XFER_PIO_4: TA = 0x01; TB = 0x04; break;
104 case XFER_PIO_3: TA = 0x02; TB = 0x06; break;
105 case XFER_PIO_2: TA = 0x03; TB = 0x08; break;
106 case XFER_PIO_1: TA = 0x05; TB = 0x0C; break;
108 default: TA = 0x09; TB = 0x13; break;
111 if (speed < XFER_SW_DMA_0) {
113 * preserve SYNC_INT / ERDDY_EN bits while clearing
114 * Prefetch_EN / IORDY_EN / PA[3:0] bits of register A
117 if (drive->id->capability & 4)
118 AP |= 0x20; /* set IORDY_EN bit */
119 if (drive->media == ide_disk)
120 AP |= 0x10; /* set Prefetch_EN bit */
121 /* clear PB[4:0] bits of register B */
123 pci_write_config_byte(dev, drive_pci, AP | TA);
124 pci_write_config_byte(dev, drive_pci + 1, BP | TB);
126 /* clear MB[2:0] bits of register B */
128 /* clear MC[3:0] bits of register C */
130 pci_write_config_byte(dev, drive_pci + 1, BP | TB);
131 pci_write_config_byte(dev, drive_pci + 2, CP | TC);
134 #if PDC202XX_DEBUG_DRIVE_INFO
135 printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
136 drive->name, ide_xfer_verbose(speed),
137 drive->dn, drive_conf);
138 pci_read_config_dword(dev, drive_pci, &drive_conf);
139 printk("0x%08x\n", drive_conf);
143 static void pdc202xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
145 pdc202xx_set_mode(drive, XFER_PIO_0 + pio);
148 static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
150 u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
152 pci_read_config_word(hwif->pci_dev, 0x50, &CIS);
154 return (CIS & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
158 * Set the control register to use the 66MHz system
159 * clock for UDMA 3/4/5 mode operation when necessary.
161 * FIXME: this register is shared by both channels, some locking is needed
163 * It may also be possible to leave the 66MHz clock on
164 * and readjust the timing parameters.
166 static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif)
168 unsigned long clock_reg = hwif->dma_master + 0x11;
169 u8 clock = inb(clock_reg);
171 outb(clock | (hwif->channel ? 0x08 : 0x02), clock_reg);
174 static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif)
176 unsigned long clock_reg = hwif->dma_master + 0x11;
177 u8 clock = inb(clock_reg);
179 outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
182 static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
184 if (ide_tune_dma(drive))
187 ide_set_max_pio(drive);
192 static int pdc202xx_quirkproc (ide_drive_t *drive)
194 const char **list, *model = drive->id->model;
196 for (list = pdc_quirk_drives; *list != NULL; list++)
197 if (strstr(model, *list) != NULL)
202 static void pdc202xx_old_ide_dma_start(ide_drive_t *drive)
204 if (drive->current_speed > XFER_UDMA_2)
205 pdc_old_enable_66MHz_clock(drive->hwif);
206 if (drive->media != ide_disk || drive->addressing == 1) {
207 struct request *rq = HWGROUP(drive)->rq;
208 ide_hwif_t *hwif = HWIF(drive);
209 unsigned long high_16 = hwif->dma_master;
210 unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
212 u8 clock = inb(high_16 + 0x11);
214 outb(clock | (hwif->channel ? 0x08 : 0x02), high_16 + 0x11);
215 word_count = (rq->nr_sectors << 8);
216 word_count = (rq_data_dir(rq) == READ) ?
217 word_count | 0x05000000 :
218 word_count | 0x06000000;
219 outl(word_count, atapi_reg);
221 ide_dma_start(drive);
224 static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
226 if (drive->media != ide_disk || drive->addressing == 1) {
227 ide_hwif_t *hwif = HWIF(drive);
228 unsigned long high_16 = hwif->dma_master;
229 unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
232 outl(0, atapi_reg); /* zero out extra */
233 clock = inb(high_16 + 0x11);
234 outb(clock & ~(hwif->channel ? 0x08:0x02), high_16 + 0x11);
236 if (drive->current_speed > XFER_UDMA_2)
237 pdc_old_disable_66MHz_clock(drive->hwif);
238 return __ide_dma_end(drive);
241 static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
243 ide_hwif_t *hwif = HWIF(drive);
244 unsigned long high_16 = hwif->dma_master;
245 u8 dma_stat = inb(hwif->dma_status);
246 u8 sc1d = inb(high_16 + 0x001d);
249 /* bit7: Error, bit6: Interrupting, bit5: FIFO Full, bit4: FIFO Empty */
250 if ((sc1d & 0x50) == 0x50)
252 else if ((sc1d & 0x40) == 0x40)
253 return (dma_stat & 4) == 4;
255 /* bit3: Error, bit2: Interrupting, bit1: FIFO Full, bit0: FIFO Empty */
256 if ((sc1d & 0x05) == 0x05)
258 else if ((sc1d & 0x04) == 0x04)
259 return (dma_stat & 4) == 4;
262 return (dma_stat & 4) == 4; /* return 1 if INTR asserted */
265 static void pdc202xx_dma_lost_irq(ide_drive_t *drive)
267 ide_hwif_t *hwif = HWIF(drive);
269 if (hwif->resetproc != NULL)
270 hwif->resetproc(drive);
272 ide_dma_lost_irq(drive);
275 static void pdc202xx_dma_timeout(ide_drive_t *drive)
277 ide_hwif_t *hwif = HWIF(drive);
279 if (hwif->resetproc != NULL)
280 hwif->resetproc(drive);
282 ide_dma_timeout(drive);
285 static void pdc202xx_reset_host (ide_hwif_t *hwif)
287 unsigned long high_16 = hwif->dma_master;
288 u8 udma_speed_flag = inb(high_16 | 0x001f);
290 outb(udma_speed_flag | 0x10, high_16 | 0x001f);
292 outb(udma_speed_flag & ~0x10, high_16 | 0x001f);
293 mdelay(2000); /* 2 seconds ?! */
295 printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
296 hwif->channel ? "Secondary" : "Primary");
299 static void pdc202xx_reset (ide_drive_t *drive)
301 ide_hwif_t *hwif = HWIF(drive);
302 ide_hwif_t *mate = hwif->mate;
304 pdc202xx_reset_host(hwif);
305 pdc202xx_reset_host(mate);
307 ide_set_max_pio(drive);
310 static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev,
316 static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
318 struct pci_dev *dev = hwif->pci_dev;
320 /* PDC20265 has problems with large LBA48 requests */
321 if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
322 (dev->device == PCI_DEVICE_ID_PROMISE_20265))
327 hwif->set_pio_mode = &pdc202xx_set_pio_mode;
328 hwif->set_dma_mode = &pdc202xx_set_mode;
330 hwif->quirkproc = &pdc202xx_quirkproc;
332 if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246)
333 hwif->resetproc = &pdc202xx_reset;
335 hwif->err_stops_fifo = 1;
337 hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
339 if (hwif->dma_base == 0)
342 hwif->ultra_mask = hwif->cds->udma_mask;
343 hwif->mwdma_mask = 0x07;
344 hwif->swdma_mask = 0x07;
347 hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
348 hwif->dma_lost_irq = &pdc202xx_dma_lost_irq;
349 hwif->dma_timeout = &pdc202xx_dma_timeout;
351 if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
352 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
353 hwif->cbl = pdc202xx_old_cable_detect(hwif);
355 hwif->dma_start = &pdc202xx_old_ide_dma_start;
356 hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
358 hwif->ide_dma_test_irq = &pdc202xx_old_ide_dma_test_irq;
362 hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
365 static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
367 u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0;
370 ide_setup_dma(hwif, dmabase, 8);
374 udma_speed_flag = inb(dmabase | 0x1f);
375 primary_mode = inb(dmabase | 0x1a);
376 secondary_mode = inb(dmabase | 0x1b);
377 printk(KERN_INFO "%s: (U)DMA Burst Bit %sABLED " \
379 "Secondary %s Mode.\n", hwif->cds->name,
380 (udma_speed_flag & 1) ? "EN" : "DIS",
381 (primary_mode & 1) ? "MASTER" : "PCI",
382 (secondary_mode & 1) ? "MASTER" : "PCI" );
384 #ifdef CONFIG_PDC202XX_BURST
385 if (!(udma_speed_flag & 1)) {
386 printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ",
387 hwif->cds->name, udma_speed_flag,
388 (udma_speed_flag|1));
389 outb(udma_speed_flag | 1, dmabase | 0x1f);
390 printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
392 #endif /* CONFIG_PDC202XX_BURST */
394 ide_setup_dma(hwif, dmabase, 8);
397 static int __devinit init_setup_pdc202ata4(struct pci_dev *dev,
400 if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
401 u8 irq = 0, irq2 = 0;
402 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
404 pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2);
406 pci_write_config_byte(dev,
407 (PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */
408 printk(KERN_INFO "%s: pci-config space interrupt "
409 "mirror fixed.\n", d->name);
412 return ide_setup_pci_device(dev, d);
415 static int __devinit init_setup_pdc20265(struct pci_dev *dev,
418 if ((dev->bus->self) &&
419 (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
420 ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
421 (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
422 printk(KERN_INFO "ide: Skipping Promise PDC20265 "
423 "attached to I2O RAID controller.\n");
426 return ide_setup_pci_device(dev, d);
429 static int __devinit init_setup_pdc202xx(struct pci_dev *dev,
432 return ide_setup_pci_device(dev, d);
435 static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
438 .init_setup = init_setup_pdc202ata4,
439 .init_chipset = init_chipset_pdc202xx,
440 .init_hwif = init_hwif_pdc202xx,
441 .init_dma = init_dma_pdc202xx,
443 .bootable = OFF_BOARD,
445 .pio_mask = ATA_PIO4,
446 .udma_mask = 0x07, /* udma0-2 */
449 .init_setup = init_setup_pdc202ata4,
450 .init_chipset = init_chipset_pdc202xx,
451 .init_hwif = init_hwif_pdc202xx,
452 .init_dma = init_dma_pdc202xx,
454 .bootable = OFF_BOARD,
456 .pio_mask = ATA_PIO4,
457 .udma_mask = 0x1f, /* udma0-4 */
460 .init_setup = init_setup_pdc202ata4,
461 .init_chipset = init_chipset_pdc202xx,
462 .init_hwif = init_hwif_pdc202xx,
463 .init_dma = init_dma_pdc202xx,
465 .bootable = OFF_BOARD,
467 .pio_mask = ATA_PIO4,
468 .udma_mask = 0x1f, /* udma0-4 */
471 .init_setup = init_setup_pdc20265,
472 .init_chipset = init_chipset_pdc202xx,
473 .init_hwif = init_hwif_pdc202xx,
474 .init_dma = init_dma_pdc202xx,
476 .bootable = OFF_BOARD,
478 .pio_mask = ATA_PIO4,
479 .udma_mask = 0x3f, /* udma0-5 */
482 .init_setup = init_setup_pdc202xx,
483 .init_chipset = init_chipset_pdc202xx,
484 .init_hwif = init_hwif_pdc202xx,
485 .init_dma = init_dma_pdc202xx,
487 .bootable = OFF_BOARD,
489 .pio_mask = ATA_PIO4,
490 .udma_mask = 0x3f, /* udma0-5 */
495 * pdc202xx_init_one - called when a PDC202xx is found
496 * @dev: the pdc202xx device
497 * @id: the matching pci id
499 * Called when the PCI registration layer (or the IDE initialization)
500 * finds a device matching our IDE device tables.
503 static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
505 ide_pci_device_t *d = &pdc202xx_chipsets[id->driver_data];
507 return d->init_setup(dev, d);
510 static struct pci_device_id pdc202xx_pci_tbl[] = {
511 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
512 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
513 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
514 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
515 { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
518 MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl);
520 static struct pci_driver driver = {
521 .name = "Promise_Old_IDE",
522 .id_table = pdc202xx_pci_tbl,
523 .probe = pdc202xx_init_one,
526 static int __init pdc202xx_ide_init(void)
528 return ide_pci_register_driver(&driver);
531 module_init(pdc202xx_ide_init);
533 MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
534 MODULE_DESCRIPTION("PCI driver module for older Promise IDE");
535 MODULE_LICENSE("GPL");