1 files changed, 136 insertions, 0 deletions
diff --git a/Chipset/SB/PchWrap/WdtApp/Pei/WdtAppPei.c b/Chipset/SB/PchWrap/WdtApp/Pei/WdtAppPei.c
new file mode 100644
index 0000000..7171b49
--- /dev/null
+++ b/Chipset/SB/PchWrap/WdtApp/Pei/WdtAppPei.c
@@ -0,0 +1,136 @@
+//*************************************************************************
+//*************************************************************************
+//**                                                                     **
+//**        (C)Copyright 1985-2011, American Megatrends, Inc.            **
+//**                                                                     **
+//**                       All Rights Reserved.                          **
+//**                                                                     **
+//**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093           **
+//**                                                                     **
+//**                       Phone: (770)-246-8600                         **
+//**                                                                     **
+//*************************************************************************
+//*************************************************************************
+
+//*************************************************************************
+// $Header: /Alaska/BIN/Chipset/Intel/SouthBridge/LynxPoint/Intel Pch SB Chipset/PchWrap/WdtApp/WdtAppPei/WdtAppPei.c 1     2/08/12 8:34a Yurenlai $
+//
+// $Revision: 1 $
+//
+// $Date: 2/08/12 8:34a $
+//*************************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/BIN/Chipset/Intel/SouthBridge/LynxPoint/Intel Pch SB Chipset/PchWrap/WdtApp/WdtAppPei/WdtAppPei.c $
+// 
+// 1     2/08/12 8:34a Yurenlai
+// Intel Lynx Point/SB eChipset initially releases.
+// 
+//*************************************************************************
+
+#include <Efi.h>
+#include <Pei.h>
+#include <Token.h>
+#include <AmiPeiLib.h>
+#include <AmiCspLib.h>
+
+#include "PchAccess.h"
+#include "WdtAppVariable.h"
+#include <Ppi\Wdt\Wdt.h>
+#include <PPI\ReadOnlyVariable.h>
+
+#ifdef EFI_DEBUG
+#define WDT_TIMEOUT_BETWEEN_PEI_DXE 30
+#else
+#define WDT_TIMEOUT_BETWEEN_PEI_DXE 10
+#endif
+
+EFI_GUID  gWdtPpiGuid = WDT_PPI_GUID;
+
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+//
+// Procedure:   WdtAppPeiEntryPoint
+//
+// Description: Turns on WDT during PEI phase according to requests made by
+//              OS overclocking application (through WDT status) and BIOS
+//              modules (through flash variable)
+//
+// Input:       *FfsHeader -  Pointer to Firmware File System file header.
+//              *PeiServices  - General purpose services available to every PEIM.
+//
+// Output:      EFI_SUCCESS if everything's OK
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS
+WdtAppPeiEntryPoint (
+  IN  EFI_FFS_FILE_HEADER *FfsHeader,
+  IN  EFI_PEI_SERVICES    **PeiServices
+  )
+{
+  EFI_STATUS                      Status;
+  WDT_PPI                         *WdtPei;
+  EFI_GUID                        WdtPersistentData = WDT_PERSISTENT_DATA_GUID;
+  EFI_GUID                        gPeiReadOnlyVariablePpiGuid = EFI_PEI_READ_ONLY_VARIABLE_PPI_GUID;
+  WDT_PERSISTENT_DATA             WdtStateData;
+  EFI_PEI_READ_ONLY_VARIABLE_PPI  *ReadOnlyVariable;
+  UINTN                           VariableSize;
+  
+  PEI_TRACE((-1, PeiServices, "(WdtApp) WdtAppPei Entry Point\n"));
+
+  Status = (*PeiServices)->LocatePpi (
+    PeiServices,
+    &gPeiReadOnlyVariablePpiGuid,
+    0, NULL,
+    &ReadOnlyVariable
+  );
+  ASSERT_PEI_ERROR (PeiServices, Status);
+
+  VariableSize = sizeof(WdtStateData);
+  
+  Status = ReadOnlyVariable->GetVariable (
+    PeiServices,
+    WDT_PERSISTENT_DATA_C_NAME,
+    &WdtPersistentData,
+    NULL,
+    &VariableSize,
+    &WdtStateData
+  );
+
+  if (EFI_ERROR(Status)) {
+    WdtStateData.Enable = 0;
+  }
+
+  Status = (*PeiServices)->LocatePpi (
+    PeiServices,
+    &gWdtPpiGuid,
+    0,
+    NULL,
+    &WdtPei
+  );
+
+  ASSERT_PEI_ERROR (PeiServices, Status);
+ 
+  if (WdtPei->IsWdtRequired() == TRUE || WdtStateData.Enable == 1) {
+    WdtPei->ReloadAndStart(WDT_TIMEOUT_BETWEEN_PEI_DXE);
+  }
+ 
+  return EFI_SUCCESS;
+}
+
+//*************************************************************************
+//*************************************************************************
+//**                                                                     **
+//**        (C)Copyright 1985-2011, American Megatrends, Inc.            **
+//**                                                                     **
+//**                       All Rights Reserved.                          **
+//**                                                                     **
+//**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093           **
+//**                                                                     **
+//**                       Phone: (770)-246-8600                         **
+//**                                                                     **
+//*************************************************************************
+//*************************************************************************
+