QuarkPlatformPkg/Platform/Pei/PlatformConfig/PlatformConfigPei.c

   1 /** @file
   2 Principle source module for Clanton Peak platform config PEIM driver.
   3
   4 Copyright (c) 2013 Intel Corporation.
   5
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiPei.h>
  11 #include <Library/IntelQNCLib.h>
  12 #include <Library/PlatformHelperLib.h>
  13 #include <Library/QNCAccessLib.h>
  14
  15 VOID
  16 EFIAPI
  17 LegacySpiProtect (
  18   VOID
  19   )
  20 {
  21   UINT32  RegVal;
  22
  23   RegVal = PcdGet32 (PcdLegacyProtectedBIOSRange0Pei);
  24   if (RegVal != 0) {
  25     PlatformWriteFirstFreeSpiProtect (
  26       RegVal,
  27       0,
  28       0
  29       );
  30   }
  31   RegVal = PcdGet32 (PcdLegacyProtectedBIOSRange1Pei);
  32   if (RegVal != 0) {
  33     PlatformWriteFirstFreeSpiProtect (
  34       RegVal,
  35       0,
  36       0
  37       );
  38   }
  39   RegVal = PcdGet32 (PcdLegacyProtectedBIOSRange2Pei);
  40   if (RegVal != 0) {
  41     PlatformWriteFirstFreeSpiProtect (
  42       RegVal,
  43       0,
  44       0
  45       );
  46   }
  47
  48   //
  49   // Make legacy SPI READ/WRITE enabled if not a secure build
  50   //
  51   LpcPciCfg32And (R_QNC_LPC_BIOS_CNTL, ~B_QNC_LPC_BIOS_CNTL_BIOSWE);
  52 }
  53
  54 /** PlatformConfigPei driver entry point.
  55
  56   Platform config in PEI stage.
  57
  58   @param[in]       FfsHeader    Pointer to Firmware File System file header.
  59   @param[in]       PeiServices  General purpose services available to every PEIM.
  60
  61   @retval EFI_SUCCESS           Platform config success.
  62 */
  63 EFI_STATUS
  64 EFIAPI
  65 PlatformConfigPeiInit (
  66   IN       EFI_PEI_FILE_HANDLE  FileHandle,
  67   IN CONST EFI_PEI_SERVICES     **PeiServices
  68   )
  69 {
  70   //
  71   // Do SOC Init Pre memory init.
  72   //
  73   PeiQNCPreMemInit ();
  74
  75   //
  76   // Protect areas specified by PCDs.
  77   //
  78   LegacySpiProtect ();
  79
  80   return EFI_SUCCESS;
  81 }