diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index c7de0bb..58dba1d 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -226,14 +226,26 @@
 	{ 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
 	/* 2801GBM/GHM (ICH7M, identical to ICH6M) */
 	{ 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6m_sata_ahci },
-	/* Enterprise Southbridge 2 (where's the datasheet?) */
+	/* Enterprise Southbridge 2 (631xESB/632xESB) */
 	{ 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
-	/* SATA Controller 1 IDE (ICH8, no datasheet yet) */
+	/* SATA Controller 1 IDE (ICH8) */
 	{ 0x8086, 0x2820, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
-	/* SATA Controller 2 IDE (ICH8, ditto) */
+	/* SATA Controller 2 IDE (ICH8) */
 	{ 0x8086, 0x2825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
-	/* Mobile SATA Controller IDE (ICH8M, ditto) */
+	/* Mobile SATA Controller IDE (ICH8M) */
 	{ 0x8086, 0x2828, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+	/* SATA Controller IDE (ICH9) */
+	{ 0x8086, 0x2920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+	/* SATA Controller IDE (ICH9) */
+	{ 0x8086, 0x2921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+	/* SATA Controller IDE (ICH9) */
+	{ 0x8086, 0x2926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+	/* SATA Controller IDE (ICH9M) */
+	{ 0x8086, 0x2928, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+	/* SATA Controller IDE (ICH9M) */
+	{ 0x8086, 0x292d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+	/* SATA Controller IDE (ICH9M) */
+	{ 0x8086, 0x292e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
 
 	{ }	/* terminate list */
 };