ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2014, ARM Limited. All rights reserved.
   4 *  Copyright (c) 2014, Linaro Limited. All rights reserved.
   5 *
   6 *  This program and the accompanying materials
   7 *  are licensed and made available under the terms and conditions of the BSD License
   8 *  which accompanies this distribution.  The full text of the license may be found at
   9 *  http://opensource.org/licenses/bsd-license.php
  10 *
  11 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 *
  14 **/
  15
  16 #include <PiPei.h>
  17
  18 #include <Library/MemoryAllocationLib.h>
  19 #include <Library/DebugLib.h>
  20 #include <Library/HobLib.h>
  21 #include <Library/PcdLib.h>
  22 #include <libfdt.h>
  23
  24 EFI_STATUS
  25 EFIAPI
  26 PlatformPeim (
  27   VOID
  28   )
  29 {
  30   VOID               *Base;
  31   VOID               *NewBase;
  32   UINTN              FdtSize;
  33
  34   Base = (VOID*)(UINTN)FixedPcdGet64 (PcdDeviceTreeInitialBaseAddress);
  35   ASSERT (fdt_check_header (Base) == 0);
  36
  37   FdtSize = fdt_totalsize (Base);
  38   NewBase = AllocatePages (EFI_SIZE_TO_PAGES (FdtSize));
  39   ASSERT (NewBase != NULL);
  40
  41   CopyMem (NewBase, Base, FdtSize);
  42   PcdSet64 (PcdDeviceTreeBaseAddress, (UINT64)(UINTN)NewBase);
  43
  44   BuildFvHob (PcdGet64 (PcdFvBaseAddress), PcdGet32 (PcdFvSize));
  45
  46   return EFI_SUCCESS;
  47 }