diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a0e85a7..c729e69 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -577,9 +577,9 @@
 	{ PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci },		/* MCP7B */
 
 	/* SiS */
-	{ PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp },		/* SiS 966 */
-	{ PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp },		/* SiS 968 */
-	{ PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp },		/* SiS 968 */
+	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
+	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
+	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
 
 	/* Marvell */
 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */