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Diffstat (limited to 'drivers/ata/pata_ali.c')
-rw-r--r--drivers/ata/pata_ali.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 1432dc9d0ab8..9434114b2ca8 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -453,7 +453,9 @@ static void ali_init_chipset(struct pci_dev *pdev)
453 /* Clear CD-ROM DMA write bit */ 453 /* Clear CD-ROM DMA write bit */
454 tmp &= 0x7F; 454 tmp &= 0x7F;
455 /* Cable and UDMA */ 455 /* Cable and UDMA */
456 pci_write_config_byte(pdev, 0x4B, tmp | 0x09); 456 if (pdev->revision >= 0xc2)
457 tmp |= 0x01;
458 pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
457 /* 459 /*
458 * CD_ROM DMA on (0x53 bit 0). Enable this even if we want 460 * CD_ROM DMA on (0x53 bit 0). Enable this even if we want
459 * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control 461 * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control