[PATCH] ahci: Enable SB600 64bit DMA on Gateway SJM11-YK

[Todd Merrill <turmlos@comcast.net>]

ahci: Enable SB600 64bit DMA on Gateway SJM11-YK

The SJM11-YK motherboard, found in Gateway LT31 series netbooks, can
also support 64bit DMA. Tested with the earliest and latest known BIOS
versions.

Applies to kernel 2.6.33.

Signed-off-by: Todd Merrill <turmlos@comcast.net>

--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2758,6 +2758,19 @@ static bool ahci_sb600_enable_64bit(stru
 				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
 			},
 		},
+		/*
+		 * The BIOS on the Gateway SJM11-YK, found in Gateway
+		 * LT31 series netbooks, supports 64bit DMA. Tested with
+		 * BIOS versions 1.3103 and 1.3302.
+		 */
+		{
+			.ident = "Gateway SJM11-YK",
+			.matches = {
+				DMI_MATCH(DMI_BOARD_VENDOR,
+					  "Gateway"),
+				DMI_MATCH(DMI_BOARD_NAME, "SJM11-YK"),
+			},
+		},
 		{ }
 	};
 	const struct dmi_system_id *match;