ArmPlatformPkg/Library/ArmPlatformSecLibNull/ArmPlatformLibNullSec.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2014, 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/ArmPlatformLib.h>
  16 #include <Library/DebugLib.h>
  17 #include <Library/PcdLib.h>
  18
  19 /**
  20   Initialize the Secure peripherals and memory regions
  21
  22   If Trustzone is supported by your platform then this function makes the required initialization
  23   of the secure peripherals and memory regions.
  24
  25 **/
  26 VOID
  27 ArmPlatformSecTrustzoneInit (
  28   IN  UINTN                     MpId
  29   )
  30 {
  31   // Secondary cores might have to set the Secure SGIs into the GICD_IGROUPR0
  32   if (!ArmPlatformIsPrimaryCore (MpId)) {
  33     return;
  34   }
  35
  36   ASSERT(FALSE);
  37 }
  38
  39 /**
  40   Initialize controllers that must setup at the early stage
  41
  42   Some peripherals must be initialized in Secure World.
  43   For example, some L2x0 requires to be initialized in Secure World
  44
  45 **/
  46 RETURN_STATUS
  47 ArmPlatformSecInitialize (
  48   IN  UINTN                     MpId
  49   )
  50 {
  51   // If it is not the primary core then there is nothing to do
  52   if (!ArmPlatformIsPrimaryCore (MpId)) {
  53     return RETURN_SUCCESS;
  54   }
  55
  56   // Do nothing yet
  57   return RETURN_SUCCESS;
  58 }
  59
  60 /**
  61   Call before jumping to Normal World
  62
  63   This function allows the firmware platform to do extra actions before
  64   jumping to the Normal World
  65
  66 **/
  67 VOID
  68 ArmPlatformSecExtraAction (
  69   IN  UINTN         MpId,
  70   OUT UINTN*        JumpAddress
  71   )
  72 {
  73   *JumpAddress = PcdGet64 (PcdFvBaseAddress);
  74 }