diff --git a/src/mainboard/google/rambi/acpi/chromeos.asl b/src/mainboard/google/rambi/acpi/chromeos.asl
index 40ffcf0156..e748fb868e 100644
--- a/src/mainboard/google/rambi/acpi/chromeos.asl
+++ b/src/mainboard/google/rambi/acpi/chromeos.asl
@@ -17,8 +17,20 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+/*
+ * Fields are in the following order.
+ * - Type: recovery = 1 developer mode = 2 write protect = 3
+ * - Active Level - if -1 not a valid gpio
+ * - GPIO number encoding - if -1 not a valid gpio
+ * - Chipset Name
+ *
+ * Note: On Bay Trail we need to encode gpios within the 3 separate banks
+ * with the MMIO offset of each banks space. e.g. GPIO_SUS[8] would be encoded
+ * as 0x2008 where the SUS offset (IO_BASE_OFFSET_GPSSUS) is 0x2000.
+ */
+
 Name(OIPG, Package() {
-	Package () { 0x0001, 0, 0xFF, "LynxPoint" }, // recovery
-	Package () { 0x0002, 0, 0xFF, "LynxPoint" }, // developer
-	Package () { 0x0003, 0, 0xFF, "LynxPoint" }, // firmware write protect
+	// No physical recovery button
+	Package () { 0x0001, 0, 0xFFFFFFFF, "BayTrail" },
+	Package () { 0x0003, 1, 0x2006, "BayTrail" },
 })