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-rw-r--r--drivers/ide/pci/hpt34x.c17
1 files changed, 1 insertions, 16 deletions
diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c
index ce7b08f08a09..6707f3944d44 100644
--- a/drivers/ide/pci/hpt34x.c
+++ b/drivers/ide/pci/hpt34x.c
@@ -48,19 +48,6 @@ static u8 hpt34x_ratemask (ide_drive_t *drive)
return 1;
}
-static void hpt34x_clear_chipset (ide_drive_t *drive)
-{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
- u32 reg1 = 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
-
- pci_read_config_dword(dev, 0x44, &reg1);
- pci_read_config_dword(dev, 0x48, &reg2);
- tmp1 = ((0x00 << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
- tmp2 = (reg2 & ~(0x11 << drive->dn));
- pci_write_config_dword(dev, 0x44, tmp1);
- pci_write_config_dword(dev, 0x48, tmp2);
-}
-
static int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
{
struct pci_dev *dev = HWIF(drive)->pci_dev;
@@ -81,7 +68,7 @@ static int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
pci_read_config_dword(dev, 0x44, &reg1);
pci_read_config_dword(dev, 0x48, &reg2);
tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
- tmp2 = ((hi_speed << drive->dn) | reg2);
+ tmp2 = ((hi_speed << drive->dn) | (reg2 & ~(0x11 << drive->dn)));
pci_write_config_dword(dev, 0x44, tmp1);
pci_write_config_dword(dev, 0x48, tmp2);
@@ -99,7 +86,6 @@ static int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
static void hpt34x_tune_drive (ide_drive_t *drive, u8 pio)
{
pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
- hpt34x_clear_chipset(drive);
(void) hpt34x_tune_chipset(drive, (XFER_PIO_0 + pio));
}
@@ -117,7 +103,6 @@ static int config_chipset_for_dma (ide_drive_t *drive)
if (!(speed))
return 0;
- hpt34x_clear_chipset(drive);
(void) hpt34x_tune_chipset(drive, speed);
return ide_dma_enable(drive);
}