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/CompilerIntrinsicsLib/Arm/ldivmod.asm

@@ -0,0 +1,54 @@
+//------------------------------------------------------------------------------ 
+//
+// 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.
+//
+//------------------------------------------------------------------------------
+
+
+    EXPORT  __aeabi_ldivmod
+    EXTERN  __aeabi_uldivmod
+           
+    AREA    Math, CODE, READONLY
+
+;
+;UINT32
+;EFIAPI
+;__aeabi_uidivmode (
+;  IN UINT32  Dividen
+;  IN UINT32  Divisor
+;  );
+;
+
+__aeabi_ldivmod
+    PUSH     {r4,lr}
+    ASRS     r4,r1,#1
+    EOR      r4,r4,r3,LSR #1
+    BPL      {pc} + 0xc  ; 0x18
+    RSBS     r0,r0,#0
+    RSC      r1,r1,#0
+    TST      r3,r3
+    BPL      {pc} + 0xc  ; 0x28
+    RSBS     r2,r2,#0
+    RSC      r3,r3,#0
+    BL       __aeabi_uldivmod  ;
+    TST      r4,#0x40000000
+    BEQ      {pc} + 0xc  ; 0x3c
+    RSBS     r0,r0,#0
+    RSC      r1,r1,#0
+    TST      r4,#0x80000000
+    BEQ      {pc} + 0xc  ; 0x4c
+    RSBS     r2,r2,#0
+    RSC      r3,r3,#0
+    POP      {r4,pc}
+ 
+    END
+
+