ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbLibRTSM/ArmRealViewEbBoot.asm

   1 //
   2 //  Copyright (c) 2011, 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 #include <Library/ArmPlatformLib.h>
  17 #include <ArmPlatform.h>
  18 #include <AutoGen.h>
  19
  20   INCLUDE AsmMacroIoLib.inc
  21
  22   EXPORT  ArmPlatformSecBootAction
  23   EXPORT  ArmPlatformInitializeBootMemory
  24
  25   PRESERVE8
  26   AREA    CTA9x4BootMode, CODE, READONLY
  27
  28 /**
  29   Call at the beginning of the platform boot up
  30
  31   This function allows the firmware platform to do extra actions at the early
  32   stage of the platform power up.
  33
  34   Note: This function must be implemented in assembler as there is no stack set up yet
  35
  36 **/
  37 ArmPlatformSecBootAction
  38   bx  lr
  39
  40 /**
  41   Initialize the memory where the initial stacks will reside
  42
  43   This memory can contain the initial stacks (Secure and Secure Monitor stacks).
  44   In some platform, this region is already initialized and the implementation of this function can
  45   do nothing. This memory can also represent the Secure RAM.
  46   This function is called before the satck has been set up. Its implementation must ensure the stack
  47   pointer is not used (probably required to use assembly language)
  48
  49 **/
  50 ArmPlatformInitializeBootMemory
  51   // The SMC does not need to be initialized for RTSM
  52   bx    lr