pata_ali: fix UDMA settings

This patch was found to fix some of the problems with the
pata_ali driver.

https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=156482

Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 3c55a5ff74c761ac8cf9e00d5056146458cae1ee..75e95bdbe02fec28c84183cdcedcd6be942d8eb0 100644 (file)
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -550,22 +550,22 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                .udma_mask = 0x1f,
                .port_ops = &ali_c2_port_ops
        };
-       /* Revision 0xC3 is UDMA100 */
+       /* Revision 0xC3 is UDMA66 for now */
        static const struct ata_port_info info_c3 = {
                .sht = &ali_sht,
                .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
                .pio_mask = 0x1f,
                .mwdma_mask = 0x07,
-               .udma_mask = 0x3f,
+               .udma_mask = 0x1f,
                .port_ops = &ali_c2_port_ops
        };
-       /* Revision 0xC4 is UDMA133 */
+       /* Revision 0xC4 is UDMA100 */
        static const struct ata_port_info info_c4 = {
                .sht = &ali_sht,
                .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
                .pio_mask = 0x1f,
                .mwdma_mask = 0x07,
-               .udma_mask = 0x7f,
+               .udma_mask = 0x3f,
                .port_ops = &ali_c2_port_ops
        };
        /* Revision 0xC5 is UDMA133 with LBA48 DMA */