BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S

   1 #
   2 #  Copyright (c) 2012-2013, 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 #include <AutoGen.h>
  16
  17 .text
  18 .align 2
  19
  20 GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
  21 GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
  22 GCC_ASM_EXPORT(ArmPlatformPeiBootAction)
  23
  24 GCC_ASM_IMPORT(ArmReadMpidr)
  25
  26 //UINTN
  27 //ArmPlatformIsPrimaryCore (
  28 //  IN UINTN MpId
  29 //  );
  30 ASM_PFX(ArmPlatformIsPrimaryCore):
  31   // BeagleBoard has a single core. We must always return 1.
  32   mov   r0, #1
  33   bx    lr
  34
  35 ASM_PFX(ArmPlatformPeiBootAction):
  36   bx    lr
  37
  38 //UINTN
  39 //ArmPlatformGetPrimaryCoreMpId (
  40 //  VOID
  41 //  );
  42 ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
  43   // The BeagleBoard is a uniprocessor platform. The MPIDR of primary core is
  44   // always the MPIDR of the calling CPU.
  45   b   ASM_PFX(ArmReadMpidr)
  46
  47 ASM_FUNCTION_REMOVE_IF_UNREFERENCED