To make ata_piix recognize my ich9m chip i had to apply the^^^^
modification that follows.
Best regards
Maurizio Monge
diff -Nurb old/drivers/ata/ata_piix.c new/drivers/ata/ata_piix.c
--- old/drivers/ata/ata_piix.c 2007-06-17 23:06:12.000000000 +0200
+++ new/drivers/ata/ata_piix.c 2007-06-17 23:15:57.000000000 +0200
@@ -243,6 +243,8 @@
{ 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 },
+ /* Mobile SATA Controller IDE (ICH9M) */
+ { 0x8086, 0x2850, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },