ArmPlatformPkg/ArmRealViewEb: Add SysConfigLib support

The ARM RealViewEB tiles could have their microcontrollers mapped into the
ARM RealView EB motherboard memory map



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11796 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/ArmRealViewEbPkg/Library/SysConfigArmRealViewEbLib/SysConfigArmRealViewEb.c

@@ -0,0 +1,95 @@
+/** @file  SysCfgArmPlatform.c
+
+  Copyright (c) 2011, ARM Ltd. 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 <PiDxe.h>
+#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
+
+#include <Library/ArmPlatformSysConfigLib.h>
+#include <ArmPlatform.h>
+
+/****************************************************************************
+ *
+ *  This file makes it easier to access the System Configuration Registers
+ *  in the ARM Versatile Express motherboard.
+ *
+ ****************************************************************************/
+
+EFI_STATUS
+ArmPlatformSysConfigInitialize (
+  VOID
+  )
+{
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+ArmPlatformSysConfigGet (
+  IN  SYS_CONFIG_FUNCTION   Function,
+  OUT UINT32*               Value
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_SUCCESS;
+
+  // Intercept some functions
+  switch(Function) {
+
+  default:
+    Status = EFI_UNSUPPORTED;
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+ArmPlatformSysConfigSet (
+  IN  SYS_CONFIG_FUNCTION   Function,
+  IN  UINT32                Value
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_SUCCESS;
+
+  // Intercept some functions
+  switch(Function) {
+
+  default:
+    Status = EFI_UNSUPPORTED;
+  }
+
+  return Status;
+}
+
+EFI_STATUS
+ArmPlatformSysConfigSetDevice (
+  IN  SYS_CONFIG_FUNCTION   Function,
+  IN  UINT32                Device,
+  IN  UINT32                Value
+  )
+{
+  EFI_STATUS Status;
+
+  Status = EFI_SUCCESS;
+
+  // Intercept some functions
+  switch(Function) {
+
+  default:
+    Status = EFI_UNSUPPORTED;
+  }
+
+  return Status;
+}