diff options
Diffstat (limited to 'drivers/ide/pci/amd74xx.c')
| -rw-r--r-- | drivers/ide/pci/amd74xx.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c index 9c3ea90aeb8b..5ed1d485fc7e 100644 --- a/drivers/ide/pci/amd74xx.c +++ b/drivers/ide/pci/amd74xx.c @@ -1,5 +1,5 @@ /* - * Version 2.20 + * Version 2.21 * * AMD 755/756/766/8111 and nVidia nForce/2/2s/3/3s/CK804/MCP04 * IDE driver for Linux. @@ -272,10 +272,8 @@ static int amd_set_drive(ide_drive_t *drive, u8 speed) static void amd74xx_tune_drive(ide_drive_t *drive, u8 pio) { - if (pio == 255) { - amd_set_drive(drive, ide_find_best_pio_mode(drive)); - return; - } + if (pio == 255) + pio = ide_get_best_pio_mode(drive, 255, 5); amd_set_drive(drive, XFER_PIO_0 + min_t(byte, pio, 5)); } @@ -284,12 +282,14 @@ static int amd74xx_ide_dma_check(ide_drive_t *drive) { u8 speed = ide_max_dma_mode(drive); - if (speed == 0) - speed = ide_find_best_pio_mode(drive); + if (speed == 0) { + amd74xx_tune_drive(drive, 255); + return -1; + } amd_set_drive(drive, speed); - if (drive->autodma && (speed & XFER_MODE) != XFER_PIO) + if (drive->autodma) return 0; return -1; @@ -451,6 +451,8 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif) .autodma = AUTODMA, \ .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \ .bootable = ON_BOARD, \ + .host_flags = IDE_HFLAG_PIO_NO_BLACKLIST \ + | IDE_HFLAG_PIO_NO_DOWNGRADE, \ } #define DECLARE_NV_DEV(name_str) \ @@ -461,6 +463,8 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif) .autodma = AUTODMA, \ .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \ .bootable = ON_BOARD, \ + .host_flags = IDE_HFLAG_PIO_NO_BLACKLIST \ + | IDE_HFLAG_PIO_NO_DOWNGRADE, \ } static ide_pci_device_t amd74xx_chipsets[] __devinitdata = { |