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Diffstat (limited to 'Vlv2DeviceRefCodePkg/AcpiTablesPCAT/PciTree.asl')
-rw-r--r--Vlv2DeviceRefCodePkg/AcpiTablesPCAT/PciTree.asl14
1 files changed, 12 insertions, 2 deletions
diff --git a/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/PciTree.asl b/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/PciTree.asl
index 84a7ee21d0..2a57d0f887 100644
--- a/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/PciTree.asl
+++ b/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/PciTree.asl
@@ -5,7 +5,7 @@
;* Family of Customer Reference Boards. *;
;* *;
;* *;
-;* Copyright (c) 2012 - 2014, Intel Corporation. All rights reserved *;
+;* Copyright (c) 2012 - 2015, Intel Corporation. All rights reserved *;
;
; This program and the accompanying materials are licensed and made available under
; the terms and conditions of the BSD License that accompanies this distribution.
@@ -21,7 +21,6 @@
Scope(\_SB)
{
-
//RTC
Device(RTC) // RTC
{
@@ -31,6 +30,17 @@ Scope(\_SB)
{
IO(Decode16,0x70,0x70,0x01,0x08)
})
+
+ Method(_STA,0,Serialized) {
+
+ //
+ // Report RTC Battery is Prensent or Not Present.
+ //
+ If (LEqual(BATT, 1)) {
+ Return (0xF)
+ }
+ Return (0x0)
+ }
}
//RTC