* 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
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);
}
/*
* 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);
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);
}
* 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)
* The initialization callback. Initialize drive independent registers.
*/
-static unsigned int init_chipset_amd74xx(struct pci_dev *dev)
+static int init_chipset_amd74xx(struct pci_dev *dev)
{
u8 t = 0, offset = amd_offset(dev);
t |= 0xf0;
pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t);
- return dev->irq;
+ return 0;
}
static u8 amd_cable_detect(ide_hwif_t *hwif)
return ATA_CBL_PATA40;
}
-static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
-
- if (hwif->irq == 0) /* 0 is bogus but will do for now */
- hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel);
-}
-
static const struct ide_port_ops amd_port_ops = {
.set_pio_mode = amd_set_pio_mode,
.set_dma_mode = amd_set_drive,
{ \
.name = DRV_NAME, \
.init_chipset = init_chipset_amd74xx, \
- .init_hwif = init_hwif_amd74xx, \
.enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \
.port_ops = &amd_port_ops, \
.host_flags = IDE_HFLAGS_AMD, \
{ \
.name = DRV_NAME, \
.init_chipset = init_chipset_amd74xx, \
- .init_hwif = init_hwif_amd74xx, \
.enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \
.port_ops = &amd_port_ops, \
.host_flags = IDE_HFLAGS_AMD, \
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");