From 6ff84d99d3d4030ced8f48ef9486c9dc22429eea Mon Sep 17 00:00:00 2001
From: erictian <erictian@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 22 Nov 2011 06:11:16 +0000
Subject: [PATCH] PcAtChipsetPkg: install RTC ARCH protocol even if RTC h/w is
 functioning incorrectly.

signed-off-by: erictian
reviewed-by: mdkinney

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12756 6f19259b-4bc3-4df7-8a09-765794883524
---
 PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c      | 5 +++++
 PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c | 4 +---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
index 292c25def7..b999a2eafe 100644
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
@@ -141,6 +141,11 @@ PcRtcInit (
   //
   Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));
   if (EFI_ERROR (Status)) {
+    //
+    // Set the variable with default value if the RTC is functioning incorrectly.
+    //
+    Global->SavedTimeZone = EFI_UNSPECIFIED_TIMEZONE;
+    Global->Daylight      = 0;
     if (!EfiAtRuntime ()) {
       EfiReleaseLock (&Global->RtcLock);
     }
diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c
index 16f74b83c9..9cf3988705 100644
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c
@@ -137,9 +137,7 @@ InitializePcRtc (
   EfiInitializeLock (&mModuleGlobal.RtcLock, TPL_CALLBACK);
 
   Status = PcRtcInit (&mModuleGlobal);
-  if (EFI_ERROR (Status)) {
-    return Status;
-  }
+  ASSERT_EFI_ERROR (Status);
 
   gRT->GetTime       = PcRtcEfiGetTime;
   gRT->SetTime       = PcRtcEfiSetTime;