Add ArmPlatformPkg from ARM Ltd. patch.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11291 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbLibRTSM/ArmRealViewEb.c

@@ -0,0 +1,68 @@
+/** @file
+*
+*  Copyright (c) 2011, 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.             
+*
+**/
+
+#include <Library/IoLib.h>
+#include <Library/ArmPlatformLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Drivers/PL341Dmc.h>
+
+/**
+  Return if Trustzone is supported by your platform
+
+  A non-zero value must be returned if you want to support a Secure World on your platform.
+  ArmPlatformTrustzoneInit() will later set up the secure regions.
+  This function can return 0 even if Trustzone is supported by your processor. In this case,
+  the platform will continue to run in Secure World.
+
+  @return   A non-zero value if Trustzone supported.
+
+**/
+UINTN ArmPlatformTrustzoneSupported(VOID) {
+  // There is no Trustzone controllers (TZPC & TZASC) and no Secure Memory on RTSM
+	return FALSE;
+}
+
+/**
+  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 ArmPlatformTrustzoneInit(VOID) {
+	ASSERT(FALSE);
+}
+
+/**
+  Remap the memory at 0x0
+
+  Some platform requires or gives the ability to remap the memory at the address 0x0.
+  This function can do nothing if this feature is not relevant to your platform.
+
+**/
+VOID ArmPlatformBootRemapping(VOID) {
+  // Disable memory remapping and return to normal mapping
+	MmioOr32 (ARM_EB_SYSCTRL, BIT8); //EB_SP810_CTRL_BASE
+}
+
+/**
+  Initialize the system (or sometimes called permanent) memory
+
+  This memory is generally represented by the DRAM.
+
+**/
+VOID ArmPlatformInitializeSystemMemory(VOID) {
+    // We do not need to initialize the System Memory on RTSM
+}