BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.asm

   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 <Base.h>
  16
  17 #include <AutoGen.h>
  18
  19   INCLUDE AsmMacroIoLib.inc
  20
  21   EXPORT    ArmPlatformPeiBootAction
  22   EXPORT    ArmPlatformIsPrimaryCore
  23   EXPORT    ArmPlatformGetPrimaryCoreMpId
  24
  25   IMPORT    ArmReadMpidr
  26
  27   AREA BeagleBoardHelper, CODE, READONLY
  28
  29 //UINTN
  30 //ArmPlatformIsPrimaryCore (
  31 //  IN UINTN MpId
  32 //  );
  33 ArmPlatformIsPrimaryCore FUNCTION
  34   // BeagleBoard has a single core. We must always return 1.
  35   mov   r0, #1
  36   bx    lr
  37   ENDFUNC
  38
  39 ArmPlatformPeiBootAction FUNCTION
  40   bx    lr
  41   ENDFUNC
  42
  43 //UINTN
  44 //ArmPlatformGetPrimaryCoreMpId (
  45 //  VOID
  46 //  );
  47 ArmPlatformGetPrimaryCoreMpId FUNCTION
  48   // The BeagleBoard is a uniprocessor platform. The MPIDR of primary core is
  49   // always the MPIDR of the calling CPU.
  50   b     ArmReadMpidr
  51   ENDFUNC
  52
  53   END