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/Include/AsmMacroIoLib.inc

@@ -0,0 +1,74 @@
+;%HEADER%
+;/** @file
+;  Macros to work around lack of Apple support for LDR register, =expr
+;
+;  Copyright (c) 2009, Apple, Inc.  All rights reserved.
+;
+;**/
+
+
+  MACRO 
+  MmioWrite32Macro $Address, $Data 
+  ldr  r1, = ($Address)                
+  ldr  r0, = ($Data)                 
+  str  r0, [r1]  
+  MEND
+    
+  MACRO 
+  MmioOr32Macro $Address, $OrData 
+  ldr  r1, =($Address)               
+  ldr  r2, =($OrData)                
+  ldr  r0, [r1]                      
+  orr  r0, r0, r2                    
+  str  r0, [r1] 
+  MEND
+
+  MACRO 
+  MmioAnd32Macro $Address, $AndData 
+  ldr  r1, =($Address)                 
+  ldr  r2, =($AndData)                 
+  ldr  r0, [r1]                        
+  and  r0, r0, r2                      
+  str  r0, [r1] 
+  MEND
+
+  MACRO 
+  MmioAndThenOr32Macro $Address, $AndData, $OrData 
+  ldr  r1, =($Address)                         
+  ldr  r0, [r1]                                        
+  ldr  r2, =($AndData)                                 
+  and  r0, r0, r2                                      
+  ldr  r2, =($OrData)                                  
+  orr  r0, r0, r2                                      
+  str  r0, [r1]          
+  MEND
+
+  MACRO 
+  MmioWriteFromReg32Macro $Address, $Reg 
+  ldr  r1, =($Address)   
+  str  $Reg, [r1]        
+  MEND
+
+  MACRO 
+  MmioRead32Macro $Address   
+  ldr  r1, =($Address)         
+  ldr  r0, [r1]   
+  MEND
+
+  MACRO 
+  MmioReadToReg32Macro $Address, $Reg 
+  ldr  r1, =($Address)                   
+  ldr  $Reg, [r1]        
+  MEND
+
+  MACRO 
+  LoadConstantMacro $Data 
+  ldr  r0, =($Data) 
+  MEND
+
+  MACRO 
+  LoadConstantToRegMacro $Data, $Reg 
+  ldr  $Reg, =($Data) 
+  MEND 
+
+  END