/* * linux/drivers/ide/pci/pdc202xx_old.c Version 0.50 Mar 3, 2007 * * Copyright (C) 1998-2002 Andre Hedrick * Copyright (C) 2006-2007 MontaVista Software, Inc. * Copyright (C) 2007 Bartlomiej Zolnierkiewicz * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 }; static void pdc_old_disable_66MHz_clock(ide_hwif_t *); 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); u8 AP = 0, BP = 0, CP = 0; u8 TA = 0, TB = 0, TC = 0; #if PDC202XX_DEBUG_DRIVE_INFO u32 drive_conf = 0; pci_read_config_dword(dev, drive_pci, &drive_conf); #endif /* * TODO: do this once per channel */ if (dev->device != PCI_DEVICE_ID_PROMISE_20246) pdc_old_disable_66MHz_clock(hwif); pci_read_config_byte(dev, drive_pci, &AP); pci_read_config_byte(dev, drive_pci + 1, &BP); pci_read_config_byte(dev, drive_pci + 2, &CP); switch(speed) { 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: TB = 0xE0; TC = 0x0F; break; 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) { /* * preserve SYNC_INT / ERDDY_EN bits while clearing * Prefetch_EN / IORDY_EN / PA[3:0] bits of register A */ AP &= ~0x3f; if (drive->id->capability & 4) AP |= 0x20; /* set IORDY_EN bit */ if (drive->media == ide_disk) AP |= 0x10; /* set Prefetch_EN bit */ /* clear PB[4:0] bits of register B */ BP &= ~0x1f; pci_write_config_byte(dev, drive_pci, AP | TA); pci_write_config_byte(dev, drive_pci + 1, BP | TB); } else { /* clear MB[2:0] bits of register B */ BP &= ~0xe0; /* clear MC[3:0] bits of register C */ CP &= ~0x0f; pci_write_config_byte(dev, drive_pci + 1, BP | TB); pci_write_config_byte(dev, drive_pci + 2, 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 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. * * FIXME: this register is shared by both channels, some locking is needed * * 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 pdc202xx_config_drive_xfer_rate (ide_drive_t *drive) { drive->init_speed = 0; if (ide_tune_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 void pdc202xx_dma_lost_irq(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); if (hwif->resetproc != NULL) hwif->resetproc(drive); ide_dma_lost_irq(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->dma_lost_irq = &pdc202xx_dma_lost_irq; 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");