1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 5719704eb0ee..5250187ffce2 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -432,9 +432,9 @@ static const struct piix_map_db ich8_map_db = {
         .present_shift = 8,
         .map = {
                 /* PM   PS   SM   SS       MAP */
-                {  P0,  NA,  P1,  NA }, /* 00b (hardwired) */
+                {  P0,  P2,  P1,  P3 }, /* 00b (hardwired when in AHCI) */
                 {  RV,  RV,  RV,  RV },
-                {  RV,  RV,  RV,  RV }, /* 10b (never) */
+                {  IDE,  IDE,  NA,  NA }, /* 10b (IDE mode) */
                 {  RV,  RV,  RV,  RV },
         },
 };