1 files changed, 119 insertions, 0 deletions
diff --git a/ArmRealViewEbPkg/SecForPei/Sec.c b/ArmRealViewEbPkg/SecForPei/Sec.c
new file mode 100755
index 0000000000..fbe5b9a2d0
--- /dev/null
+++ b/ArmRealViewEbPkg/SecForPei/Sec.c
@@ -0,0 +1,119 @@
+/** @file
+  C Entry point for the SEC. First C code after the reset vector.
+
+  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+  
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiPei.h>
+#include <Ppi/TemporaryRamSupport.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <ArmEb/ArmEb.h>
+
+EFI_STATUS
+EFIAPI
+SecTemporaryRamSupport (
+  IN CONST EFI_PEI_SERVICES   **PeiServices,
+  IN EFI_PHYSICAL_ADDRESS     TemporaryMemoryBase,
+  IN EFI_PHYSICAL_ADDRESS     PermanentMemoryBase,
+  IN UINTN                    CopySize
+  );
+
+VOID
+SecSwitchStack (
+  INTN    StackDelta
+  );
+
+TEMPORARY_RAM_SUPPORT_PPI   mSecTemporaryRamSupportPpi = {SecTemporaryRamSupport};
+
+EFI_PEI_PPI_DESCRIPTOR      gSecPpiTable[] = {
+  {
+    EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
+    &gEfiTemporaryRamSupportPpiGuid,
+    &mSecTemporaryRamSupportPpi
+  }
+};
+
+
+VOID
+EFIAPI 
+_ModuleEntryPoint(
+  VOID
+  );
+
+VOID
+CEntryPoint (
+  IN  UINTN                     TempRamBase,
+  IN  UINTN                     TempRamSize,
+  IN  EFI_PEI_CORE_ENTRY_POINT  PeiCoreEntryPoint
+  )
+{
+  EFI_SEC_PEI_HAND_OFF        SecCoreData;
+
+  // Turn off remapping NOR to 0. We can will now see DRAM in low memory (although it is not yet initialized)
+  // note: this makes SEC platform-specific for the EB platform
+  MmioOr32 (0x10001000 ,BIT8); //EB_SP810_CTRL_BASE
+  
+  //
+  // Bind this information into the SEC hand-off state
+  // Note: this must be in sync with the stuff in the asm file
+  // Note also:  HOBs (pei temp ram) MUST be above stack
+  //
+  SecCoreData.DataSize               = sizeof(EFI_SEC_PEI_HAND_OFF);
+  SecCoreData.BootFirmwareVolumeBase = (VOID *)(UINTN)PcdGet32 (PcdEmbeddedFdBaseAddress);
+  SecCoreData.BootFirmwareVolumeSize = PcdGet32 (PcdEmbeddedFdSize);
+  SecCoreData.TemporaryRamBase       = (VOID*)(UINTN)TempRamBase; 
+  SecCoreData.TemporaryRamSize       = TempRamSize;
+  SecCoreData.PeiTemporaryRamBase    = (VOID *)(UINTN)(SecCoreData.TemporaryRamBase + (SecCoreData.TemporaryRamSize / 2));
+  SecCoreData.PeiTemporaryRamSize    = SecCoreData.TemporaryRamSize / 2;
+  SecCoreData.StackBase              = (VOID *)(UINTN)(SecCoreData.TemporaryRamBase);
+  SecCoreData.StackSize              = SecCoreData.TemporaryRamSize - SecCoreData.PeiTemporaryRamSize;
+  
+  // jump to pei core entry point
+  (PeiCoreEntryPoint)(&SecCoreData, (VOID *)&gSecPpiTable);
+}
+
+EFI_STATUS
+EFIAPI
+SecTemporaryRamSupport (
+  IN CONST EFI_PEI_SERVICES   **PeiServices,
+  IN EFI_PHYSICAL_ADDRESS     TemporaryMemoryBase,
+  IN EFI_PHYSICAL_ADDRESS     PermanentMemoryBase,
+  IN UINTN                    CopySize
+  )
+{
+  //
+  // Migrate the whole temporary memory to permenent memory.
+  // 
+  CopyMem (
+    (VOID*)(UINTN)PermanentMemoryBase, 
+    (VOID*)(UINTN)TemporaryMemoryBase, 
+    CopySize
+    );
+
+  SecSwitchStack((UINTN)(PermanentMemoryBase - TemporaryMemoryBase));
+
+  //
+  // We need *not* fix the return address because currently, 
+  // The PeiCore is excuted in flash.
+  //
+
+  //
+  // Simulate to invalid temporary memory, terminate temporary memory
+  // 
+  //ZeroMem ((VOID*)(UINTN)TemporaryMemoryBase, CopySize);
+  
+  return EFI_SUCCESS;
+}
+