| /* |
| * linux/drivers/ide/pci/aec62xx.c Version 0.24 May 24, 2007 |
| * |
| * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org> |
| * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com> |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <linux/delay.h> |
| #include <linux/hdreg.h> |
| #include <linux/ide.h> |
| #include <linux/init.h> |
| |
| #include <asm/io.h> |
| |
| struct chipset_bus_clock_list_entry { |
| u8 xfer_speed; |
| u8 chipset_settings; |
| u8 ultra_settings; |
| }; |
| |
| static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = { |
| { XFER_UDMA_6, 0x31, 0x07 }, |
| { XFER_UDMA_5, 0x31, 0x06 }, |
| { XFER_UDMA_4, 0x31, 0x05 }, |
| { XFER_UDMA_3, 0x31, 0x04 }, |
| { XFER_UDMA_2, 0x31, 0x03 }, |
| { XFER_UDMA_1, 0x31, 0x02 }, |
| { XFER_UDMA_0, 0x31, 0x01 }, |
| |
| { XFER_MW_DMA_2, 0x31, 0x00 }, |
| { XFER_MW_DMA_1, 0x31, 0x00 }, |
| { XFER_MW_DMA_0, 0x0a, 0x00 }, |
| { XFER_PIO_4, 0x31, 0x00 }, |
| { XFER_PIO_3, 0x33, 0x00 }, |
| { XFER_PIO_2, 0x08, 0x00 }, |
| { XFER_PIO_1, 0x0a, 0x00 }, |
| { XFER_PIO_0, 0x00, 0x00 }, |
| { 0, 0x00, 0x00 } |
| }; |
| |
| static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = { |
| { XFER_UDMA_6, 0x41, 0x06 }, |
| { XFER_UDMA_5, 0x41, 0x05 }, |
| { XFER_UDMA_4, 0x41, 0x04 }, |
| { XFER_UDMA_3, 0x41, 0x03 }, |
| { XFER_UDMA_2, 0x41, 0x02 }, |
| { XFER_UDMA_1, 0x41, 0x01 }, |
| { XFER_UDMA_0, 0x41, 0x01 }, |
| |
| { XFER_MW_DMA_2, 0x41, 0x00 }, |
| { XFER_MW_DMA_1, 0x42, 0x00 }, |
| { XFER_MW_DMA_0, 0x7a, 0x00 }, |
| { XFER_PIO_4, 0x41, 0x00 }, |
| { XFER_PIO_3, 0x43, 0x00 }, |
| { XFER_PIO_2, 0x78, 0x00 }, |
| { XFER_PIO_1, 0x7a, 0x00 }, |
| { XFER_PIO_0, 0x70, 0x00 }, |
| { 0, 0x00, 0x00 } |
| }; |
| |
| #define BUSCLOCK(D) \ |
| ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D))) |
| |
| |
| /* |
| * TO DO: active tuning and correction of cards without a bios. |
| */ |
| static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table) |
| { |
| for ( ; chipset_table->xfer_speed ; chipset_table++) |
| if (chipset_table->xfer_speed == speed) { |
| return chipset_table->chipset_settings; |
| } |
| return chipset_table->chipset_settings; |
| } |
| |
| static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table) |
| { |
| for ( ; chipset_table->xfer_speed ; chipset_table++) |
| if (chipset_table->xfer_speed == speed) { |
| return chipset_table->ultra_settings; |
| } |
| return chipset_table->ultra_settings; |
| } |
| |
| static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed) |
| { |
| ide_hwif_t *hwif = HWIF(drive); |
| struct pci_dev *dev = hwif->pci_dev; |
| u16 d_conf = 0; |
| u8 speed = ide_rate_filter(drive, xferspeed); |
| u8 ultra = 0, ultra_conf = 0; |
| u8 tmp0 = 0, tmp1 = 0, tmp2 = 0; |
| unsigned long flags; |
| |
| local_irq_save(flags); |
| /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */ |
| pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf); |
| tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev)); |
| d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf); |
| pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf); |
| |
| tmp1 = 0x00; |
| tmp2 = 0x00; |
| pci_read_config_byte(dev, 0x54, &ultra); |
| tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn)))); |
| ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev)); |
| tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn)))); |
| pci_write_config_byte(dev, 0x54, tmp2); |
| local_irq_restore(flags); |
| return(ide_config_drive_speed(drive, speed)); |
| } |
| |
| static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed) |
| { |
| ide_hwif_t *hwif = HWIF(drive); |
| struct pci_dev *dev = hwif->pci_dev; |
| u8 speed = ide_rate_filter(drive, xferspeed); |
| u8 unit = (drive->select.b.unit & 0x01); |
| u8 tmp1 = 0, tmp2 = 0; |
| u8 ultra = 0, drive_conf = 0, ultra_conf = 0; |
| unsigned long flags; |
| |
| local_irq_save(flags); |
| /* high 4-bits: Active, low 4-bits: Recovery */ |
| pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf); |
| drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev)); |
| pci_write_config_byte(dev, 0x40|drive->dn, drive_conf); |
| |
| pci_read_config_byte(dev, (0x44|hwif->channel), &ultra); |
| tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit)))); |
| ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev)); |
| tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit)))); |
| pci_write_config_byte(dev, (0x44|hwif->channel), tmp2); |
| local_irq_restore(flags); |
| return(ide_config_drive_speed(drive, speed)); |
| } |
| |
| static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio) |
| { |
| pio = ide_get_best_pio_mode(drive, pio, 4); |
| (void) HWIF(drive)->speedproc(drive, pio + XFER_PIO_0); |
| } |
| |
| static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive) |
| { |
| if (ide_tune_dma(drive)) |
| return 0; |
| |
| if (ide_use_fast_pio(drive)) |
| aec62xx_tune_drive(drive, 255); |
| |
| return -1; |
| } |
| |
| static void aec62xx_dma_lost_irq (ide_drive_t *drive) |
| { |
| switch (HWIF(drive)->pci_dev->device) { |
| case PCI_DEVICE_ID_ARTOP_ATP860: |
| case PCI_DEVICE_ID_ARTOP_ATP860R: |
| case PCI_DEVICE_ID_ARTOP_ATP865: |
| case PCI_DEVICE_ID_ARTOP_ATP865R: |
| printk(" AEC62XX time out "); |
| default: |
| break; |
| } |
| } |
| |
| static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name) |
| { |
| int bus_speed = system_bus_clock(); |
| |
| if (bus_speed <= 33) |
| pci_set_drvdata(dev, (void *) aec6xxx_33_base); |
| else |
| pci_set_drvdata(dev, (void *) aec6xxx_34_base); |
| |
| /* These are necessary to get AEC6280 Macintosh cards to work */ |
| if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) || |
| (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) { |
| u8 reg49h = 0, reg4ah = 0; |
| /* Clear reset and test bits. */ |
| pci_read_config_byte(dev, 0x49, ®49h); |
| pci_write_config_byte(dev, 0x49, reg49h & ~0x30); |
| /* Enable chip interrupt output. */ |
| pci_read_config_byte(dev, 0x4a, ®4ah); |
| pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01); |
| /* Enable burst mode. */ |
| pci_read_config_byte(dev, 0x4a, ®4ah); |
| pci_write_config_byte(dev, 0x4a, reg4ah | 0x80); |
| } |
| |
| return dev->irq; |
| } |
| |
| static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif) |
| { |
| struct pci_dev *dev = hwif->pci_dev; |
| u8 reg54 = 0, mask = hwif->channel ? 0xf0 : 0x0f; |
| unsigned long flags; |
| |
| hwif->tuneproc = &aec62xx_tune_drive; |
| |
| if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) { |
| if(hwif->mate) |
| hwif->mate->serialized = hwif->serialized = 1; |
| hwif->speedproc = &aec6210_tune_chipset; |
| } else |
| hwif->speedproc = &aec6260_tune_chipset; |
| |
| if (!hwif->dma_base) { |
| hwif->drives[0].autotune = hwif->drives[1].autotune = 1; |
| return; |
| } |
| |
| hwif->ultra_mask = hwif->cds->udma_mask; |
| hwif->mwdma_mask = 0x07; |
| |
| hwif->ide_dma_check = &aec62xx_config_drive_xfer_rate; |
| hwif->dma_lost_irq = &aec62xx_dma_lost_irq; |
| |
| if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) { |
| spin_lock_irqsave(&ide_lock, flags); |
| pci_read_config_byte (dev, 0x54, ®54); |
| pci_write_config_byte(dev, 0x54, (reg54 & ~mask)); |
| spin_unlock_irqrestore(&ide_lock, flags); |
| } else if (hwif->cbl != ATA_CBL_PATA40_SHORT) { |
| u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01; |
| |
| pci_read_config_byte(hwif->pci_dev, 0x49, &ata66); |
| |
| hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; |
| } |
| |
| if (!noautodma) |
| hwif->autodma = 1; |
| hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma; |
| } |
| |
| static int __devinit init_setup_aec62xx(struct pci_dev *dev, ide_pci_device_t *d) |
| { |
| return ide_setup_pci_device(dev, d); |
| } |
| |
| static int __devinit init_setup_aec6x80(struct pci_dev *dev, ide_pci_device_t *d) |
| { |
| unsigned long dma_base = pci_resource_start(dev, 4); |
| |
| if (inb(dma_base + 2) & 0x10) { |
| d->name = (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R) ? |
| "AEC6880R" : "AEC6880"; |
| d->udma_mask = 0x7f; /* udma0-6 */ |
| } |
| |
| return ide_setup_pci_device(dev, d); |
| } |
| |
| static ide_pci_device_t aec62xx_chipsets[] __devinitdata = { |
| { /* 0 */ |
| .name = "AEC6210", |
| .init_setup = init_setup_aec62xx, |
| .init_chipset = init_chipset_aec62xx, |
| .init_hwif = init_hwif_aec62xx, |
| .autodma = AUTODMA, |
| .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, |
| .bootable = OFF_BOARD, |
| .udma_mask = 0x07, /* udma0-2 */ |
| },{ /* 1 */ |
| .name = "AEC6260", |
| .init_setup = init_setup_aec62xx, |
| .init_chipset = init_chipset_aec62xx, |
| .init_hwif = init_hwif_aec62xx, |
| .autodma = NOAUTODMA, |
| .bootable = OFF_BOARD, |
| .udma_mask = 0x1f, /* udma0-4 */ |
| },{ /* 2 */ |
| .name = "AEC6260R", |
| .init_setup = init_setup_aec62xx, |
| .init_chipset = init_chipset_aec62xx, |
| .init_hwif = init_hwif_aec62xx, |
| .autodma = AUTODMA, |
| .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, |
| .bootable = NEVER_BOARD, |
| .udma_mask = 0x1f, /* udma0-4 */ |
| },{ /* 3 */ |
| .name = "AEC6280", |
| .init_setup = init_setup_aec6x80, |
| .init_chipset = init_chipset_aec62xx, |
| .init_hwif = init_hwif_aec62xx, |
| .autodma = AUTODMA, |
| .bootable = OFF_BOARD, |
| .udma_mask = 0x3f, /* udma0-5 */ |
| },{ /* 4 */ |
| .name = "AEC6280R", |
| .init_setup = init_setup_aec6x80, |
| .init_chipset = init_chipset_aec62xx, |
| .init_hwif = init_hwif_aec62xx, |
| .autodma = AUTODMA, |
| .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, |
| .bootable = OFF_BOARD, |
| .udma_mask = 0x3f, /* udma0-5 */ |
| } |
| }; |
| |
| /** |
| * aec62xx_init_one - called when a AEC is found |
| * @dev: the aec62xx device |
| * @id: the matching pci id |
| * |
| * Called when the PCI registration layer (or the IDE initialization) |
| * finds a device matching our IDE device tables. |
| * |
| * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R] |
| * chips, pass a local copy of 'struct pci_device_id' down the call chain. |
| */ |
| |
| static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| { |
| ide_pci_device_t d = aec62xx_chipsets[id->driver_data]; |
| |
| return d.init_setup(dev, &d); |
| } |
| |
| static struct pci_device_id aec62xx_pci_tbl[] = { |
| { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, |
| { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, |
| { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, |
| { PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, |
| { 0, }, |
| }; |
| MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl); |
| |
| static struct pci_driver driver = { |
| .name = "AEC62xx_IDE", |
| .id_table = aec62xx_pci_tbl, |
| .probe = aec62xx_init_one, |
| }; |
| |
| static int __init aec62xx_ide_init(void) |
| { |
| return ide_pci_register_driver(&driver); |
| } |
| |
| module_init(aec62xx_ide_init); |
| |
| MODULE_AUTHOR("Andre Hedrick"); |
| MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE"); |
| MODULE_LICENSE("GPL"); |