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      1 //
      2 //  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
      3 //
      4 //  This program and the accompanying materials
      5 //  are licensed and made available under the terms and conditions of the BSD License
      6 //  which accompanies this distribution.  The full text of the license may be found at
      7 //  http://opensource.org/licenses/bsd-license.php
      8 //
      9 //  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10 //  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 //
     12 //
     13 
     14 #include <AsmMacroIoLib.h>
     15 
     16 // IN None
     17 // OUT r0 = SCU Base Address
     18 ASM_FUNC(ArmGetScuBaseAddress)
     19   // Read Configuration Base Address Register. ArmCBar cannot be called to get
     20   // the Configuration BAR as a stack is not necessary setup. The SCU is at the
     21   // offset 0x0000 from the Private Memory Region.
     22   mrc   p15, 4, r0, c15, c0, 0
     23   bx  lr
     24