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diff --git a/ArmPlatformPkg/Include/Library/ArmPlatformSecLib.h b/ArmPlatformPkg/Include/Library/ArmPlatformSecLib.h
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+/** @file
+*
+*  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
+*  
+*  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.             
+*
+**/
+
+#ifndef _ARMPLATFORMSECLIB_H_
+#define _ARMPLATFORMSECLIB_H_
+
+/**
+  Initialize the memory where the initial stacks will reside
+
+  This memory can contain the initial stacks (Secure and Secure Monitor stacks).
+  In some platform, this region is already initialized and the implementation of this function can
+  do nothing. This memory can also represent the Secure RAM.
+  This function is called before the satck has been set up. Its implementation must ensure the stack
+  pointer is not used (probably required to use assembly language)
+
+**/
+VOID
+ArmPlatformSecBootMemoryInit (
+  VOID
+  );
+
+/**
+  Call at the beginning of the platform boot up
+
+  This function allows the firmware platform to do extra actions at the early
+  stage of the platform power up.
+
+  Note: This function must be implemented in assembler as there is no stack set up yet
+
+**/
+VOID
+ArmPlatformSecBootAction (
+  VOID
+  );
+
+/**
+  Initialize controllers that must setup at the early stage
+
+  Some peripherals must be initialized in Secure World.
+  For example: Some L2 controller, interconnect, clock, DMC, etc
+
+**/
+RETURN_STATUS
+ArmPlatformSecInitialize (
+  IN  UINTN                     MpId
+  );
+
+/**
+  Call before jumping to Normal World
+
+  This function allows the firmware platform to do extra actions before
+  jumping to the Normal World
+
+**/
+VOID
+ArmPlatformSecExtraAction (
+  IN  UINTN         MpId,
+  OUT UINTN*        JumpAddress
+  );
+
+/**
+  Initialize the Secure peripherals and memory regions
+
+  If Trustzone is supported by your platform then this function makes the required initialization
+  of the secure peripherals and memory regions.
+
+**/
+VOID
+ArmPlatformSecTrustzoneInit (
+  IN  UINTN                     MpId
+  );
+
+#endif