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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-12-03 20:32:13 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-12-03 16:11:24 -0500 |
| commit | dd4a43c979d5da7f2cd20e2751dbbd841116cdfe (patch) | |
| tree | 05b0fc53813ad0a7ac2e20e858c0f7c80a3ce275 /drivers/ata/pata_radisys.c | |
| parent | a809c68752e63312c20fb027cf33da4a5ac384a5 (diff) | |
| download | lwn-dd4a43c979d5da7f2cd20e2751dbbd841116cdfe.tar.gz lwn-dd4a43c979d5da7f2cd20e2751dbbd841116cdfe.zip | |
pata_radisys: fix UDMA handling
Set correct bits to switch between UDMA2 and UDMA4.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_radisys.c')
| -rw-r--r-- | drivers/ata/pata_radisys.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c index 4401b332eaab..4fd25e737d9a 100644 --- a/drivers/ata/pata_radisys.c +++ b/drivers/ata/pata_radisys.c @@ -139,9 +139,9 @@ static void radisys_set_dmamode (struct ata_port *ap, struct ata_device *adev) pci_read_config_byte(dev, 0x4A, &udma_mode); if (adev->xfer_mode == XFER_UDMA_2) - udma_mode &= ~ (1 << adev->devno); + udma_mode &= ~(2 << (adev->devno * 4)); else /* UDMA 4 */ - udma_mode |= (1 << adev->devno); + udma_mode |= (2 << (adev->devno * 4)); pci_write_config_byte(dev, 0x4A, udma_mode); |