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      1 /** @file
      2 *
      3 *  Copyright (c) 2011, 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 <PiPei.h>
     16 #include <Library/ArmLib.h>
     17 #include <Library/PrePiHobListPointerLib.h>
     18 #include <Library/DebugLib.h>
     19 
     20 /**
     21   Returns the pointer to the HOB list.
     22 
     23   This function returns the pointer to first HOB in the list.
     24 
     25   @return The pointer to the HOB list.
     26 
     27 **/
     28 VOID *
     29 EFIAPI
     30 PrePeiGetHobList (
     31   VOID
     32   )
     33 {
     34   return (VOID *)ArmReadTpidrurw();
     35 }
     36 
     37 
     38 
     39 /**
     40   Updates the pointer to the HOB list.
     41 
     42   @param  HobList       Hob list pointer to store
     43 
     44 **/
     45 EFI_STATUS
     46 EFIAPI
     47 PrePeiSetHobList (
     48   IN  VOID      *HobList
     49   )
     50 {
     51   ArmWriteTpidrurw((UINTN)HobList);
     52 
     53   return EFI_SUCCESS;
     54 }
     55