Commit dd4a43c9 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz Committed by Jeff Garzik
Browse files

pata_radisys: fix UDMA handling 



Set correct bits to switch between UDMA2 and UDMA4.

Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent a809c687

drivers/ata/pata_radisys.c

+2 −2
Original line number Diff line number Diff line
@@ -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);