Vlv2TbltDevicePkg/PlatformInitPei/PlatformInfoInit.c

   1 /** @file
   2
   3   Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR>
   4
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7
   8
   9 Module Name:
  10
  11   PlatformInfoInit.c
  12
  13 Abstract:
  14   Platform Info Driver.
  15
  16 --*/
  17
  18 #include "PlatformEarlyInit.h"
  19
  20 #define LEN_64M       0x4000000
  21
  22 //
  23 // Default PCI32 resource size
  24 //
  25 #define RES_MEM32_MIN_LEN   0x38000000
  26
  27 #define RES_IO_BASE   0x0D00
  28 #define RES_IO_LIMIT  0xFFFF
  29
  30 #define MemoryCeilingVariable   L"MemCeil."
  31
  32 EFI_STATUS
  33 CheckOsSelection (
  34   IN CONST EFI_PEI_SERVICES          **PeiServices,
  35   IN SYSTEM_CONFIGURATION            *SystemConfiguration
  36   )
  37 {
  38   EFI_STATUS                   Status;
  39   EFI_PEI_READ_ONLY_VARIABLE2_PPI   *Variable;
  40   UINTN                        VariableSize;
  41   EFI_OS_SELECTION_HOB         *OsSelectionHob;
  42   UINT8                        OsSelection;
  43   UINT8                        *LpssDataHobPtr;
  44   UINT8                        *LpssDataVarPtr;
  45   UINTN                        i;
  46
  47   Status = (*PeiServices)->LocatePpi (
  48                              PeiServices,
  49                              &gEfiPeiReadOnlyVariable2PpiGuid,
  50                              0,
  51                              NULL,
  52                                       (void **)&Variable
  53                              );
  54   if (!EFI_ERROR(Status)) {
  55     VariableSize = sizeof (OsSelection);
  56     Status = Variable->GetVariable (
  57                          Variable,
  58                          L"OsSelection",
  59                          &gOsSelectionVariableGuid,
  60                          NULL,
  61                          &VariableSize,
  62                          &OsSelection
  63                          );
  64
  65     if (!EFI_ERROR(Status) && (SystemConfiguration->ReservedO != OsSelection)) {
  66       //
  67       // Build HOB for OsSelection
  68       //
  69       OsSelectionHob = BuildGuidHob (&gOsSelectionVariableGuid, sizeof (EFI_OS_SELECTION_HOB));
  70       ASSERT (OsSelectionHob != NULL);
  71
  72       OsSelectionHob->OsSelectionChanged = TRUE;
  73       OsSelectionHob->OsSelection        = OsSelection;
  74       SystemConfiguration->ReservedO   = OsSelectionHob->OsSelection;
  75
  76       //
  77       // Load LPSS and SCC default configurations
  78       //
  79       OsSelectionHob->LpssData.LpsseMMCEnabled            = FALSE;
  80       OsSelectionHob->LpssData.LpssSdioEnabled            = TRUE;
  81       OsSelectionHob->LpssData.LpssSdcardEnabled          = TRUE;
  82       OsSelectionHob->LpssData.LpssSdCardSDR25Enabled     = FALSE;
  83       OsSelectionHob->LpssData.LpssSdCardDDR50Enabled     = TRUE;
  84       OsSelectionHob->LpssData.LpssMipiHsi                = FALSE;
  85       OsSelectionHob->LpssData.LpsseMMC45Enabled          = TRUE;
  86       OsSelectionHob->LpssData.LpsseMMC45DDR50Enabled     = TRUE;
  87       OsSelectionHob->LpssData.LpsseMMC45HS200Enabled     = FALSE;
  88       OsSelectionHob->LpssData.LpsseMMC45RetuneTimerValue = 8;
  89       OsSelectionHob->LpssData.eMMCBootMode               = 1;     // Auto Detect
  90
  91
  92       SystemConfiguration->Lpe       = OsSelectionHob->Lpe;
  93       SystemConfiguration->PchAzalia = SystemConfiguration->PchAzalia;
  94       LpssDataHobPtr = &OsSelectionHob->LpssData.LpssPciModeEnabled;
  95       LpssDataVarPtr = &SystemConfiguration->LpssPciModeEnabled;
  96
  97       for (i = 0; i < sizeof(EFI_PLATFORM_LPSS_DATA); i++) {
  98         *LpssDataVarPtr = *LpssDataHobPtr;
  99         LpssDataVarPtr++;
 100         LpssDataHobPtr++;
 101       }
 102     }
 103   }
 104
 105   return EFI_SUCCESS;
 106 }
 107
 108
 109 EFI_STATUS
 110 PlatformInfoUpdate (
 111   IN CONST EFI_PEI_SERVICES          **PeiServices,
 112   IN OUT EFI_PLATFORM_INFO_HOB *PlatformInfoHob,
 113   IN SYSTEM_CONFIGURATION      *SystemConfiguration
 114   )
 115 {
 116   EFI_STATUS                   Status;
 117   EFI_PEI_READ_ONLY_VARIABLE2_PPI   *Variable;
 118   UINTN                        VariableSize;
 119   UINT32                       MemoryCeiling;
 120
 121   //
 122   // Checking PCI32 resource from previous boot to determine the memory ceiling
 123   //
 124   Status = (*PeiServices)->LocatePpi (
 125                              PeiServices,
 126                              &gEfiPeiReadOnlyVariable2PpiGuid,
 127                              0,
 128                              NULL,
 129                                       (void **)&Variable
 130                              );
 131   if (!EFI_ERROR(Status)) {
 132     //
 133     // Get the memory ceiling
 134     //
 135     VariableSize = sizeof(MemoryCeiling);
 136     Status = Variable->GetVariable (
 137                          Variable,
 138                          MemoryCeilingVariable,
 139                          &gEfiGlobalVariableGuid,
 140                          NULL,
 141                          &VariableSize,
 142                          &MemoryCeiling
 143                          );
 144     if(!EFI_ERROR(Status)) {
 145       //
 146       // Set the new PCI32 resource Base if the variable available
 147       //
 148       PlatformInfoHob->PciData.PciResourceMem32Base = MemoryCeiling;
 149       PlatformInfoHob->MemData.MemMaxTolm = MemoryCeiling;
 150       PlatformInfoHob->MemData.MemTolm = MemoryCeiling;
 151
 152       //
 153       // Platform PCI MMIO Size in unit of 1MB
 154       //
 155       PlatformInfoHob->MemData.MmioSize = 0x1000 - (UINT16)(PlatformInfoHob->MemData.MemMaxTolm >> 20);
 156     }
 157   }
 158
 159   return EFI_SUCCESS;
 160 }
 161
 162 /**
 163   Initialize the platform related info hob according to the
 164   pre-determine value or setup option
 165
 166   @retval EFI_SUCCESS    Memory initialization completed successfully.
 167   @retval Others         All other error conditions encountered result in an ASSERT.
 168 **/
 169 EFI_STATUS
 170 InitializePlatform (
 171   IN CONST EFI_PEI_SERVICES       **PeiServices,
 172   IN EFI_PLATFORM_INFO_HOB        *PlatformInfoHob,
 173   IN SYSTEM_CONFIGURATION         *SystemConfiguration
 174 )
 175 {
 176 //
 177 // -- cchew10 need to update here.
 178 //
 179   return EFI_SUCCESS;
 180 }
 181