diff options
Diffstat (limited to 'drivers/ide/amd74xx.c')
| -rw-r--r-- | drivers/ide/amd74xx.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c index 628cd2e5fed..3747b2561f0 100644 --- a/drivers/ide/amd74xx.c +++ b/drivers/ide/amd74xx.c @@ -3,7 +3,7 @@ * IDE driver for Linux. * * Copyright (c) 2000-2002 Vojtech Pavlik - * Copyright (c) 2007-2008 Bartlomiej Zolnierkiewicz + * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz * * Based on the work of: * Andre Hedrick @@ -70,7 +70,8 @@ static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask, default: return; } - pci_write_config_byte(dev, AMD_UDMA_TIMING + offset + (3 - dn), t); + if (timing->udma) + pci_write_config_byte(dev, AMD_UDMA_TIMING + offset + 3 - dn, t); } /* @@ -78,14 +79,14 @@ static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask, * to a desired transfer mode. It also can be called by upper layers. */ -static void amd_set_drive(ide_drive_t *drive, const u8 speed) +static void amd_set_drive(ide_hwif_t *hwif, ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; struct pci_dev *dev = to_pci_dev(hwif->dev); ide_drive_t *peer = ide_get_pair_dev(drive); struct ide_timing t, p; int T, UT; u8 udma_mask = hwif->ultra_mask; + const u8 speed = drive->dma_mode; T = 1000000000 / amd_clock; UT = (udma_mask == ATA_UDMA2) ? T : (T / 2); @@ -93,7 +94,7 @@ static void amd_set_drive(ide_drive_t *drive, const u8 speed) ide_timing_compute(drive, speed, &t, T, UT); if (peer) { - ide_timing_compute(peer, peer->current_speed, &p, T, UT); + ide_timing_compute(peer, peer->pio_mode, &p, T, UT); ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT); } @@ -107,9 +108,10 @@ static void amd_set_drive(ide_drive_t *drive, const u8 speed) * amd_set_pio_mode() is a callback from upper layers for PIO-only tuning. */ -static void amd_set_pio_mode(ide_drive_t *drive, const u8 pio) +static void amd_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) { - amd_set_drive(drive, XFER_PIO_0 + pio); + drive->dma_mode = drive->pio_mode; + amd_set_drive(hwif, drive); } static void amd7409_cable_detect(struct pci_dev *dev) @@ -340,6 +342,6 @@ static void __exit amd74xx_ide_exit(void) module_init(amd74xx_ide_init); module_exit(amd74xx_ide_exit); -MODULE_AUTHOR("Vojtech Pavlik"); +MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz"); MODULE_DESCRIPTION("AMD PCI IDE driver"); MODULE_LICENSE("GPL"); |