diff --git a/[refs] b/[refs]
index a9085a343a02..369bd86155ea 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 418dc1f5a805822fcf1118804ddc689a4156db4a
+refs/heads/master: 4b10e559277de490bf5c257a1e3264a2bf51404b
diff --git a/trunk/drivers/scsi/ahci.c b/trunk/drivers/scsi/ahci.c
index 00dfdefe2967..e97ab3e6de4d 100644
--- a/trunk/drivers/scsi/ahci.c
+++ b/trunk/drivers/scsi/ahci.c
@@ -66,6 +66,7 @@ enum {
 	AHCI_IRQ_ON_SG		= (1 << 31),
 	AHCI_CMD_ATAPI		= (1 << 5),
 	AHCI_CMD_WRITE		= (1 << 6),
+	AHCI_CMD_PREFETCH	= (1 << 7),
 	AHCI_CMD_RESET		= (1 << 8),
 	AHCI_CMD_CLR_BUSY	= (1 << 10),
 
@@ -631,7 +632,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
 	if (qc->tf.flags & ATA_TFLAG_WRITE)
 		opts |= AHCI_CMD_WRITE;
 	if (is_atapi)
-		opts |= AHCI_CMD_ATAPI;
+		opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH;
 
 	ahci_fill_cmd_slot(pp, opts);
 }