Added patch from http://www.opensubscriber.com/message/jgarzik@pobox.com/7495139...
[openwrt/svn-archive/archive.git] / target / linux / ixp4xx / patches / 998-VT6421.patch
1 I think that I've found and fixed the problem. There is a copy/paste bug in
2 vt6421_set_dma_mode() function which causes wrong values to be written to
3 PATA_UDMA_TIMING register.
4
5
6 This patch fixes a copy/paste bug that breaks DMA modes on VT6421 PATA port.
7
8 Signed-off-by: Ondrej Zary <linux@rain...>
9 diff -Nur linux-2.6.21.6/drivers/ata/sata_via.c linux-2.6.21.6-new/drivers/ata/sata_via.c
10 --- linux-2.6.21.6/drivers/ata/sata_via.c 2007-07-07 06:47:55.000000000 +0200
11 +++ linux-2.6.21.6-new/drivers/ata/sata_via.c 2007-09-29 11:05:07.000000000 +0200
12 @@ -380,6 +380,6 @@
13 {
14 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
15 static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 };
16 - pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]);
17 + pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->dma_mode - XFER_UDMA_0]);
18 }
19