ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbSecLibRTSM/ArmRealViewEbSec.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
   4 *
   5 *  This program and the accompanying materials
   6 *  are licensed and made available under the terms and conditions of the BSD License
   7 *  which accompanies this distribution.  The full text of the license may be found at
   8 *  http://opensource.org/licenses/bsd-license.php
   9 *
  10 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 *
  13 **/
  14
  15 #include <Library/IoLib.h>
  16 #include <Library/ArmLib.h>
  17 #include <Library/ArmPlatformSecLib.h>
  18 #include <Library/DebugLib.h>
  19 #include <Library/PcdLib.h>
  20
  21 #include <Drivers/PL341Dmc.h>
  22 #include <Drivers/SP804Timer.h>
  23
  24 #include <ArmPlatform.h>
  25
  26 /**
  27   Initialize the Secure peripherals and memory regions
  28
  29   If Trustzone is supported by your platform then this function makes the required initialization
  30   of the secure peripherals and memory regions.
  31
  32 **/
  33 VOID
  34 ArmPlatformSecTrustzoneInit (
  35   IN  UINTN                     MpId
  36   )
  37 {
  38   ASSERT(FALSE);
  39 }
  40
  41 /**
  42   Initialize controllers that must setup at the early stage
  43
  44   Some peripherals must be initialized in Secure World.
  45   For example, some L2x0 requires to be initialized in Secure World
  46
  47 **/
  48 RETURN_STATUS
  49 ArmPlatformSecInitialize (
  50   IN  UINTN                     MpId
  51   )
  52 {
  53   // If it is not the primary core then there is nothing to do
  54   if (!IS_PRIMARY_CORE(MpId)) {
  55     return RETURN_SUCCESS;
  56   }
  57
  58   // Do nothing yet
  59   return RETURN_SUCCESS;
  60 }
  61
  62 /**
  63   Call before jumping to Normal World
  64
  65   This function allows the firmware platform to do extra actions before
  66   jumping to the Normal World
  67
  68 **/
  69 VOID
  70 ArmPlatformSecExtraAction (
  71   IN  UINTN         MpId,
  72   OUT UINTN*        JumpAddress
  73   )
  74 {
  75   *JumpAddress = PcdGet32(PcdFvBaseAddress);
  76 }