Enable SATA AHCI for faster boot with SeaBIOS.

Change-Id: Ibd87422680350c112eabe1bb73b237031c3e9d6b
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: http://review.coreboot.org/220
Tested-by: build bot (Jenkins)
Reviewed-by: Frank Vibrans III <frank.vibrans@amd.com>
diff --git a/src/mainboard/amd/persimmon/platform_cfg.h b/src/mainboard/amd/persimmon/platform_cfg.h
index 33236243..5e3c3f4 100644
--- a/src/mainboard/amd/persimmon/platform_cfg.h
+++ b/src/mainboard/amd/persimmon/platform_cfg.h
@@ -103,7 +103,7 @@
  * @breif INCHIP Sata Controller Mode
  *   NOTE: DO NOT ALLOW SATA & IDE use same mode
  */
-#define SATA_MODE			NATIVE_IDE_MODE
+#define SATA_MODE			AHCI_MODE
 
 /**
  * @breif INCHIP Sata IDE Controller Mode