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path: root/drivers/ide/pci/it8213.c
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Diffstat (limited to 'drivers/ide/pci/it8213.c')
-rw-r--r--drivers/ide/pci/it8213.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c
index d07771e..24ef091 100644
--- a/drivers/ide/pci/it8213.c
+++ b/drivers/ide/pci/it8213.c
@@ -132,6 +132,11 @@ static int it8213_tune_chipset(ide_drive_t *drive, const u8 speed)
u16 reg4042, reg4a;
u8 reg48, reg54, reg55;
+ if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
+ it8213_tune_pio(drive, speed - XFER_PIO_0);
+ return ide_config_drive_speed(drive, speed);
+ }
+
pci_read_config_word(dev, maslave, &reg4042);
pci_read_config_byte(dev, 0x48, &reg48);
pci_read_config_word(dev, 0x4a, &reg4a);
@@ -151,12 +156,6 @@ static int it8213_tune_chipset(ide_drive_t *drive, const u8 speed)
case XFER_MW_DMA_1:
case XFER_SW_DMA_2:
break;
- case XFER_PIO_4:
- case XFER_PIO_3:
- case XFER_PIO_2:
- case XFER_PIO_1:
- case XFER_PIO_0:
- break;
default:
return -1;
}
@@ -188,10 +187,7 @@ static int it8213_tune_chipset(ide_drive_t *drive, const u8 speed)
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
}
- if (speed > XFER_PIO_4)
- it8213_tune_pio(drive, it8213_dma_2_pio(speed));
- else
- it8213_tune_pio(drive, speed - XFER_PIO_0);
+ it8213_tune_pio(drive, it8213_dma_2_pio(speed));
return ide_config_drive_speed(drive, speed);
}