| /* |
| * Promise TX2/TX4/TX2000/133 IDE driver |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * Split from: |
| * linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002 |
| * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org> |
| * Portions Copyright (C) 1999 Promise Technology, Inc. |
| * Author: Frank Tiernan (frankt@promise.com) |
| * Released under terms of General Public License |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/module.h> |
| #include <linux/types.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> |
| |
| #ifdef CONFIG_PPC_PMAC |
| #include <asm/prom.h> |
| #include <asm/pci-bridge.h> |
| #endif |
| |
| #define PDC202_DEBUG_CABLE 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 |
| }; |
| |
| #define set_2regs(a, b) \ |
| do { \ |
| hwif->OUTB((a + adj), indexreg); \ |
| hwif->OUTB(b, datareg); \ |
| } while(0) |
| |
| #define set_ultra(a, b, c) \ |
| do { \ |
| set_2regs(0x10,(a)); \ |
| set_2regs(0x11,(b)); \ |
| set_2regs(0x12,(c)); \ |
| } while(0) |
| |
| #define set_ata2(a, b) \ |
| do { \ |
| set_2regs(0x0e,(a)); \ |
| set_2regs(0x0f,(b)); \ |
| } while(0) |
| |
| #define set_pio(a, b, c) \ |
| do { \ |
| set_2regs(0x0c,(a)); \ |
| set_2regs(0x0d,(b)); \ |
| set_2regs(0x13,(c)); \ |
| } while(0) |
| |
| static u8 pdcnew_ratemask (ide_drive_t *drive) |
| { |
| u8 mode; |
| |
| switch(HWIF(drive)->pci_dev->device) { |
| case PCI_DEVICE_ID_PROMISE_20277: |
| case PCI_DEVICE_ID_PROMISE_20276: |
| case PCI_DEVICE_ID_PROMISE_20275: |
| case PCI_DEVICE_ID_PROMISE_20271: |
| case PCI_DEVICE_ID_PROMISE_20269: |
| mode = 4; |
| break; |
| case PCI_DEVICE_ID_PROMISE_20270: |
| case PCI_DEVICE_ID_PROMISE_20268: |
| mode = 3; |
| break; |
| default: |
| return 0; |
| } |
| if (!eighty_ninty_three(drive)) |
| mode = min(mode, (u8)1); |
| return mode; |
| } |
| |
| static int check_in_drive_lists (ide_drive_t *drive, const char **list) |
| { |
| struct hd_driveid *id = drive->id; |
| |
| if (pdc_quirk_drives == list) { |
| while (*list) { |
| if (strstr(id->model, *list++)) { |
| return 2; |
| } |
| } |
| } else { |
| while (*list) { |
| if (!strcmp(*list++,id->model)) { |
| return 1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed) |
| { |
| ide_hwif_t *hwif = HWIF(drive); |
| unsigned long indexreg = hwif->dma_vendor1; |
| unsigned long datareg = hwif->dma_vendor3; |
| u8 thold = 0x10; |
| u8 adj = (drive->dn%2) ? 0x08 : 0x00; |
| u8 speed = ide_rate_filter(pdcnew_ratemask(drive), xferspeed); |
| |
| if (speed == XFER_UDMA_2) { |
| hwif->OUTB((thold + adj), indexreg); |
| hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg); |
| } |
| |
| switch (speed) { |
| case XFER_UDMA_7: |
| speed = XFER_UDMA_6; |
| case XFER_UDMA_6: set_ultra(0x1a, 0x01, 0xcb); break; |
| case XFER_UDMA_5: set_ultra(0x1a, 0x02, 0xcb); break; |
| case XFER_UDMA_4: set_ultra(0x1a, 0x03, 0xcd); break; |
| case XFER_UDMA_3: set_ultra(0x1a, 0x05, 0xcd); break; |
| case XFER_UDMA_2: set_ultra(0x2a, 0x07, 0xcd); break; |
| case XFER_UDMA_1: set_ultra(0x3a, 0x0a, 0xd0); break; |
| case XFER_UDMA_0: set_ultra(0x4a, 0x0f, 0xd5); break; |
| case XFER_MW_DMA_2: set_ata2(0x69, 0x25); break; |
| case XFER_MW_DMA_1: set_ata2(0x6b, 0x27); break; |
| case XFER_MW_DMA_0: set_ata2(0xdf, 0x5f); break; |
| case XFER_PIO_4: set_pio(0x23, 0x09, 0x25); break; |
| case XFER_PIO_3: set_pio(0x27, 0x0d, 0x35); break; |
| case XFER_PIO_2: set_pio(0x23, 0x26, 0x64); break; |
| case XFER_PIO_1: set_pio(0x46, 0x29, 0xa4); break; |
| case XFER_PIO_0: set_pio(0xfb, 0x2b, 0xac); break; |
| default: |
| ; |
| } |
| |
| return (ide_config_drive_speed(drive, speed)); |
| } |
| |
| /* 0 1 2 3 4 5 6 7 8 |
| * 960, 480, 390, 300, 240, 180, 120, 90, 60 |
| * 180, 150, 120, 90, 60 |
| * DMA_Speed |
| * 180, 120, 90, 90, 90, 60, 30 |
| * 11, 5, 4, 3, 2, 1, 0 |
| */ |
| static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio) |
| { |
| u8 speed; |
| |
| if (pio == 5) pio = 4; |
| speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL); |
| |
| (void)pdcnew_new_tune_chipset(drive, speed); |
| } |
| |
| static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif) |
| { |
| hwif->OUTB(0x0b, hwif->dma_vendor1); |
| return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04))); |
| } |
| static int config_chipset_for_dma (ide_drive_t *drive) |
| { |
| struct hd_driveid *id = drive->id; |
| ide_hwif_t *hwif = HWIF(drive); |
| u8 speed = -1; |
| u8 cable; |
| |
| u8 ultra_66 = ((id->dma_ultra & 0x0010) || |
| (id->dma_ultra & 0x0008)) ? 1 : 0; |
| |
| cable = pdcnew_new_cable_detect(hwif); |
| |
| if (ultra_66 && cable) { |
| printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary"); |
| printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name); |
| } |
| |
| if (drive->media != ide_disk) |
| return 0; |
| if (id->capability & 4) { /* IORDY_EN & PREFETCH_EN */ |
| hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1); |
| hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3); |
| } |
| |
| speed = ide_dma_speed(drive, pdcnew_ratemask(drive)); |
| |
| if (!(speed)) { |
| hwif->tuneproc(drive, 5); |
| return 0; |
| } |
| |
| (void) hwif->speedproc(drive, speed); |
| return ide_dma_enable(drive); |
| } |
| |
| static int pdcnew_config_drive_xfer_rate (ide_drive_t *drive) |
| { |
| ide_hwif_t *hwif = HWIF(drive); |
| struct hd_driveid *id = drive->id; |
| |
| drive->init_speed = 0; |
| |
| if (id && (id->capability & 1) && drive->autodma) { |
| |
| if (ide_use_dma(drive)) { |
| if (config_chipset_for_dma(drive)) |
| return hwif->ide_dma_on(drive); |
| } |
| |
| goto fast_ata_pio; |
| |
| } else if ((id->capability & 8) || (id->field_valid & 2)) { |
| fast_ata_pio: |
| hwif->tuneproc(drive, 5); |
| return hwif->ide_dma_off_quietly(drive); |
| } |
| /* IORDY not supported */ |
| return 0; |
| } |
| |
| static int pdcnew_quirkproc (ide_drive_t *drive) |
| { |
| return ((int) check_in_drive_lists(drive, pdc_quirk_drives)); |
| } |
| |
| static int pdcnew_ide_dma_lostirq(ide_drive_t *drive) |
| { |
| if (HWIF(drive)->resetproc != NULL) |
| HWIF(drive)->resetproc(drive); |
| return __ide_dma_lostirq(drive); |
| } |
| |
| static int pdcnew_ide_dma_timeout(ide_drive_t *drive) |
| { |
| if (HWIF(drive)->resetproc != NULL) |
| HWIF(drive)->resetproc(drive); |
| return __ide_dma_timeout(drive); |
| } |
| |
| static void pdcnew_new_reset (ide_drive_t *drive) |
| { |
| /* |
| * Deleted this because it is redundant from the caller. |
| */ |
| printk(KERN_WARNING "PDC202XX: %s channel reset.\n", |
| HWIF(drive)->channel ? "Secondary" : "Primary"); |
| } |
| |
| #ifdef CONFIG_PPC_PMAC |
| static void __devinit apple_kiwi_init(struct pci_dev *pdev) |
| { |
| struct device_node *np = pci_device_to_OF_node(pdev); |
| unsigned int class_rev = 0; |
| void __iomem *mmio; |
| u8 conf; |
| |
| if (np == NULL || !device_is_compatible(np, "kiwi-root")) |
| return; |
| |
| pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev); |
| class_rev &= 0xff; |
| |
| if (class_rev >= 0x03) { |
| /* Setup chip magic config stuff (from darwin) */ |
| pci_read_config_byte(pdev, 0x40, &conf); |
| pci_write_config_byte(pdev, 0x40, conf | 0x01); |
| } |
| mmio = ioremap(pci_resource_start(pdev, 5), |
| pci_resource_len(pdev, 5)); |
| |
| /* Setup some PLL stuffs */ |
| switch (pdev->device) { |
| case PCI_DEVICE_ID_PROMISE_20270: |
| writew(0x0d2b, mmio + 0x1202); |
| mdelay(30); |
| break; |
| case PCI_DEVICE_ID_PROMISE_20271: |
| writew(0x0826, mmio + 0x1202); |
| mdelay(30); |
| break; |
| } |
| |
| iounmap(mmio); |
| } |
| #endif /* CONFIG_PPC_PMAC */ |
| |
| static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name) |
| { |
| 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); |
| } |
| |
| #ifdef CONFIG_PPC_PMAC |
| apple_kiwi_init(dev); |
| #endif |
| |
| return dev->irq; |
| } |
| |
| static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif) |
| { |
| hwif->autodma = 0; |
| |
| hwif->tuneproc = &pdcnew_tune_drive; |
| hwif->quirkproc = &pdcnew_quirkproc; |
| hwif->speedproc = &pdcnew_new_tune_chipset; |
| hwif->resetproc = &pdcnew_new_reset; |
| |
| hwif->drives[0].autotune = hwif->drives[1].autotune = 1; |
| |
| hwif->ultra_mask = 0x7f; |
| hwif->mwdma_mask = 0x07; |
| |
| hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate; |
| hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq; |
| hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout; |
| if (!(hwif->udma_four)) |
| hwif->udma_four = (pdcnew_new_cable_detect(hwif)) ? 0 : 1; |
| if (!noautodma) |
| hwif->autodma = 1; |
| hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma; |
| #if PDC202_DEBUG_CABLE |
| printk(KERN_DEBUG "%s: %s-pin cable\n", |
| hwif->name, hwif->udma_four ? "80" : "40"); |
| #endif /* PDC202_DEBUG_CABLE */ |
| } |
| |
| static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d) |
| { |
| return ide_setup_pci_device(dev, d); |
| } |
| |
| static int __devinit init_setup_pdc20270(struct pci_dev *dev, |
| ide_pci_device_t *d) |
| { |
| struct pci_dev *findev = NULL; |
| |
| if ((dev->bus->self && |
| dev->bus->self->vendor == PCI_VENDOR_ID_DEC) && |
| (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) { |
| if (PCI_SLOT(dev->devfn) & 2) |
| return -ENODEV; |
| d->extra = 0; |
| while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) { |
| if ((findev->vendor == dev->vendor) && |
| (findev->device == dev->device) && |
| (PCI_SLOT(findev->devfn) & 2)) { |
| if (findev->irq != dev->irq) { |
| findev->irq = dev->irq; |
| } |
| return ide_setup_pci_devices(dev, findev, d); |
| } |
| } |
| } |
| return ide_setup_pci_device(dev, d); |
| } |
| |
| static int __devinit init_setup_pdc20276(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 PDC20276 " |
| "attached to I2O RAID controller.\n"); |
| return -ENODEV; |
| } |
| return ide_setup_pci_device(dev, d); |
| } |
| |
| static ide_pci_device_t pdcnew_chipsets[] __devinitdata = { |
| { /* 0 */ |
| .name = "PDC20268", |
| .init_setup = init_setup_pdcnew, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| },{ /* 1 */ |
| .name = "PDC20269", |
| .init_setup = init_setup_pdcnew, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| },{ /* 2 */ |
| .name = "PDC20270", |
| .init_setup = init_setup_pdc20270, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| },{ /* 3 */ |
| .name = "PDC20271", |
| .init_setup = init_setup_pdcnew, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| },{ /* 4 */ |
| .name = "PDC20275", |
| .init_setup = init_setup_pdcnew, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| },{ /* 5 */ |
| .name = "PDC20276", |
| .init_setup = init_setup_pdc20276, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| },{ /* 6 */ |
| .name = "PDC20277", |
| .init_setup = init_setup_pdcnew, |
| .init_chipset = init_chipset_pdcnew, |
| .init_hwif = init_hwif_pdc202new, |
| .channels = 2, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| } |
| }; |
| |
| /** |
| * pdc202new_init_one - called when a pdc202xx is found |
| * @dev: the pdc202new 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 pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| { |
| ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data]; |
| |
| return d->init_setup(dev, d); |
| } |
| |
| static struct pci_device_id pdc202new_pci_tbl[] = { |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, |
| { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6}, |
| { 0, }, |
| }; |
| MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl); |
| |
| static struct pci_driver driver = { |
| .name = "Promise_IDE", |
| .id_table = pdc202new_pci_tbl, |
| .probe = pdc202new_init_one, |
| }; |
| |
| static int pdc202new_ide_init(void) |
| { |
| return ide_pci_register_driver(&driver); |
| } |
| |
| module_init(pdc202new_ide_init); |
| |
| MODULE_AUTHOR("Andre Hedrick, Frank Tiernan"); |
| MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher"); |
| MODULE_LICENSE("GPL"); |