ArmPlatformPkg/Library/ArmPlatformLibNull/ArmPlatformLibNull.c

   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 <Library/ArmLib.h>
  16 #include <Library/ArmPlatformLib.h>
  17
  18 #include <Ppi/ArmMpCoreInfo.h>
  19
  20
  21 ARM_CORE_INFO mArmPlatformNullMpCoreInfoTable[] = {
  22   {
  23     // Cluster 0, Core 0
  24     0x0, 0x0,
  25
  26     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  27     (EFI_PHYSICAL_ADDRESS)0,
  28     (EFI_PHYSICAL_ADDRESS)0,
  29     (EFI_PHYSICAL_ADDRESS)0,
  30     (UINT64)0xFFFFFFFF
  31   },
  32   {
  33     // Cluster 0, Core 1
  34     0x0, 0x1,
  35
  36     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  37     (EFI_PHYSICAL_ADDRESS)0,
  38     (EFI_PHYSICAL_ADDRESS)0,
  39     (EFI_PHYSICAL_ADDRESS)0,
  40     (UINT64)0xFFFFFFFF
  41   },
  42   {
  43     // Cluster 0, Core 2
  44     0x0, 0x2,
  45
  46     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  47     (EFI_PHYSICAL_ADDRESS)0,
  48     (EFI_PHYSICAL_ADDRESS)0,
  49     (EFI_PHYSICAL_ADDRESS)0,
  50     (UINT64)0xFFFFFFFF
  51   },
  52   {
  53     // Cluster 0, Core 3
  54     0x0, 0x3,
  55
  56     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  57     (EFI_PHYSICAL_ADDRESS)0,
  58     (EFI_PHYSICAL_ADDRESS)0,
  59     (EFI_PHYSICAL_ADDRESS)0,
  60     (UINT64)0xFFFFFFFF
  61   }
  62 };
  63
  64 // This function should be better located into TimerLib implementation
  65 RETURN_STATUS
  66 EFIAPI
  67 TimerConstructor (
  68   VOID
  69   )
  70 {
  71   return EFI_SUCCESS;
  72 }
  73
  74 /**
  75   Remap the memory at 0x0
  76
  77   Some platform requires or gives the ability to remap the memory at the address 0x0.
  78   This function can do nothing if this feature is not relevant to your platform.
  79
  80 **/
  81 VOID
  82 ArmPlatformBootRemapping (
  83   VOID
  84   )
  85 {
  86   // Disable memory remapping and return to normal mapping
  87 }
  88
  89 /**
  90   Return the current Boot Mode
  91
  92   This function returns the boot reason on the platform
  93
  94 **/
  95 EFI_BOOT_MODE
  96 ArmPlatformGetBootMode (
  97   VOID
  98   )
  99 {
 100   return BOOT_WITH_FULL_CONFIGURATION;
 101 }
 102
 103 /**
 104   Initialize controllers that must setup in the normal world
 105
 106   This function is called by the ArmPlatformPkg/PrePi or ArmPlatformPkg/PlatformPei
 107   in the PEI phase.
 108
 109 **/
 110 VOID
 111 ArmPlatformNormalInitialize (
 112   VOID
 113   )
 114 {
 115   //TODO: Implement me
 116 }
 117
 118 /**
 119   Initialize the system (or sometimes called permanent) memory
 120
 121   This memory is generally represented by the DRAM.
 122
 123 **/
 124 VOID
 125 ArmPlatformInitializeSystemMemory (
 126   VOID
 127   )
 128 {
 129   //TODO: Implement me
 130 }
 131
 132 EFI_STATUS
 133 PrePeiCoreGetMpCoreInfo (
 134   OUT UINTN                   *CoreCount,
 135   OUT ARM_CORE_INFO           **ArmCoreTable
 136   )
 137 {
 138   if (ArmIsMpCore()) {
 139     *CoreCount    = sizeof(mArmPlatformNullMpCoreInfoTable) / sizeof(ARM_CORE_INFO);
 140     *ArmCoreTable = mArmPlatformNullMpCoreInfoTable;
 141     return EFI_SUCCESS;
 142   } else {
 143     return EFI_UNSUPPORTED;
 144   }
 145 }
 146
 147 // Needs to be declared in the file. Otherwise gArmMpCoreInfoPpiGuid is undefined in the contect of PrePeiCore
 148 EFI_GUID mArmMpCoreInfoPpiGuid = ARM_MP_CORE_INFO_PPI_GUID;
 149 ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
 150
 151 EFI_PEI_PPI_DESCRIPTOR      gPlatformPpiTable[] = {
 152   {
 153     EFI_PEI_PPI_DESCRIPTOR_PPI,
 154     &mArmMpCoreInfoPpiGuid,
 155     &mMpCoreInfoPpi
 156   }
 157 };
 158
 159 VOID
 160 ArmPlatformGetPlatformPpiList (
 161   OUT UINTN                   *PpiListSize,
 162   OUT EFI_PEI_PPI_DESCRIPTOR  **PpiList
 163   )
 164 {
 165   if (ArmIsMpCore()) {
 166     *PpiListSize = sizeof(gPlatformPpiTable);
 167     *PpiList = gPlatformPpiTable;
 168   } else {
 169     *PpiListSize = 0;
 170     *PpiList = NULL;
 171   }
 172 }
 173