--- linux-2.6.31/drivers/ata/pata_ali.c.orig	2009-11-08 19:01:14.000000000 +0100
+++ linux-2.6.31/drivers/ata/pata_ali.c	2009-11-09 08:30:42.000000000 +0100
@@ -453,7 +453,7 @@
 			/* Clear CD-ROM DMA write bit */
 			tmp &= 0x7F;
 		/* Cable and UDMA */
-		pci_write_config_byte(pdev, 0x4B, tmp | 0x09);
+		pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
 		/*
 		 * CD_ROM DMA on (0x53 bit 0). Enable this even if we want
 		 * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control