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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-08-01 23:46:46 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-08-01 23:46:46 +0200
commit0c8de52d76e4bec6e9168b47be29f11b3bb92768 (patch)
tree8017e7a07d2d63cf28c35e094944e67022957730 /drivers/ide/pci/piix.c
parent8b6b33be3280fd776335079124ecd176e6a40797 (diff)
piix/slc90e66: fix PIO1 handling in ->speedproc method (take 2)
* Don't call {piix,slc90e66}_dma_2_pio() for PIO modes in {piix,slc90e66}_tune_chipset(). * Add PIO1 handling to {piix,slc90e66}_tune_chipset(). * Bump driver version. v2: * Remove PIO modes from {piix,slc90e66}_dma_2_pio(), they are no longer needed there (Noticed by Sergei) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/piix.c')
-rw-r--r--drivers/ide/pci/piix.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index 4f69cd067e5..5cfa9378bbb 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/piix.c Version 0.50 Jun 10, 2007
+ * linux/drivers/ide/pci/piix.c Version 0.51 Jul 6, 2007
*
* Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
@@ -109,7 +109,7 @@ static int no_piix_dma;
* piix_dma_2_pio - return the PIO mode matching DMA
* @xfer_rate: transfer speed
*
- * Returns the nearest equivalent PIO timing for the PIO or DMA
+ * Returns the nearest equivalent PIO timing for the DMA
* mode requested by the controller.
*/
@@ -123,20 +123,14 @@ static u8 piix_dma_2_pio (u8 xfer_rate) {
case XFER_UDMA_1:
case XFER_UDMA_0:
case XFER_MW_DMA_2:
- case XFER_PIO_4:
return 4;
case XFER_MW_DMA_1:
- case XFER_PIO_3:
return 3;
case XFER_SW_DMA_2:
- case XFER_PIO_2:
return 2;
case XFER_MW_DMA_0:
case XFER_SW_DMA_1:
case XFER_SW_DMA_0:
- case XFER_PIO_1:
- case XFER_PIO_0:
- case XFER_PIO_SLOW:
default:
return 0;
}
@@ -269,6 +263,7 @@ static int piix_tune_chipset (ide_drive_t *drive, u8 xferspeed)
case XFER_PIO_4:
case XFER_PIO_3:
case XFER_PIO_2:
+ case XFER_PIO_1:
case XFER_PIO_0: break;
default: return -1;
}
@@ -299,7 +294,11 @@ static int piix_tune_chipset (ide_drive_t *drive, u8 xferspeed)
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
}
- piix_tune_pio(drive, piix_dma_2_pio(speed));
+ if (speed > XFER_PIO_4)
+ piix_tune_pio(drive, piix_dma_2_pio(speed));
+ else
+ piix_tune_pio(drive, speed - XFER_PIO_0);
+
return ide_config_drive_speed(drive, speed);
}