Adding support for BeagleBoard.

ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers.
EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell.
BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine).


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Library/ArmLib/Common/ArmLib.c

@@ -0,0 +1,60 @@
+/** @file
+
+  Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+  
+  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 <Base.h>
+
+#include <Library/ArmLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+
+#include "ArmLibPrivate.h"
+
+VOID
+EFIAPI
+ArmCacheInformation (
+  OUT ARM_CACHE_INFO  *CacheInfo
+  )
+{
+  if (CacheInfo != NULL) {
+    CacheInfo->Type                           = ArmCacheType();
+    CacheInfo->Architecture                   = ArmCacheArchitecture();
+    CacheInfo->DataCachePresent               = ArmDataCachePresent();
+    CacheInfo->DataCacheSize                  = ArmDataCacheSize();
+    CacheInfo->DataCacheAssociativity         = ArmDataCacheAssociativity();
+    CacheInfo->DataCacheLineLength            = ArmDataCacheLineLength();
+    CacheInfo->InstructionCachePresent        = ArmInstructionCachePresent();
+    CacheInfo->InstructionCacheSize           = ArmInstructionCacheSize();
+    CacheInfo->InstructionCacheAssociativity  = ArmInstructionCacheAssociativity();
+    CacheInfo->InstructionCacheLineLength     = ArmInstructionCacheLineLength();
+  }
+}
+
+VOID
+EFIAPI
+ArmSwitchProcessorMode (
+  IN ARM_PROCESSOR_MODE Mode
+  )
+{
+  CPSRMaskInsert(ARM_PROCESSOR_MODE_MASK, Mode);
+}
+
+
+ARM_PROCESSOR_MODE
+EFIAPI
+ArmProcessorMode (
+  VOID
+  )
+{
+  return (ARM_PROCESSOR_MODE)(CPSRRead() & (UINT32)ARM_PROCESSOR_MODE_MASK);
+}