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/ArmPlatformLib.h>
  18 #include <Library/ArmPlatformSecLib.h>
  19 #include <Library/DebugLib.h>
  20 #include <Library/PcdLib.h>
  21
  22 #include <Drivers/PL341Dmc.h>
  23 #include <Drivers/SP804Timer.h>
  24
  25 #include <ArmPlatform.h>
  26
  27 /**
  28   Initialize the Secure peripherals and memory regions
  29
  30   If Trustzone is supported by your platform then this function makes the required initialization
  31   of the secure peripherals and memory regions.
  32
  33 **/
  34 VOID
  35 ArmPlatformSecTrustzoneInit (
  36   IN  UINTN                     MpId
  37   )
  38 {
  39   ASSERT(FALSE);
  40 }
  41
  42 /**
  43   Initialize controllers that must setup at the early stage
  44
  45   Some peripherals must be initialized in Secure World.
  46   For example, some L2x0 requires to be initialized in Secure World
  47
  48 **/
  49 RETURN_STATUS
  50 ArmPlatformSecInitialize (
  51   IN  UINTN                     MpId
  52   )
  53 {
  54   // If it is not the primary core then there is nothing to do
  55   if (!ArmPlatformIsPrimaryCore (MpId)) {
  56     return RETURN_SUCCESS;
  57   }
  58
  59   // Do nothing yet
  60   return RETURN_SUCCESS;
  61 }
  62
  63 /**
  64   Call before jumping to Normal World
  65
  66   This function allows the firmware platform to do extra actions before
  67   jumping to the Normal World
  68
  69 **/
  70 VOID
  71 ArmPlatformSecExtraAction (
  72   IN  UINTN         MpId,
  73   OUT UINTN*        JumpAddress
  74   )
  75 {
  76   *JumpAddress = PcdGet32(PcdFvBaseAddress);
  77 }