From dd4a43c979d5da7f2cd20e2751dbbd841116cdfe Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Thu, 3 Dec 2009 20:32:13 +0100 Subject: [PATCH] pata_radisys: fix UDMA handling Set correct bits to switch between UDMA2 and UDMA4. Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik --- drivers/ata/pata_radisys.c | 4 ++-- 1 file 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); -- 2.39.5