ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMFoundation.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2013, 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/IoLib.h>
  16 #include <Library/ArmPlatformLib.h>
  17 #include <Library/DebugLib.h>
  18 #include <Library/PcdLib.h>
  19
  20 #include <Ppi/ArmMpCoreInfo.h>
  21
  22 #include <ArmPlatform.h>
  23
  24 ARM_CORE_INFO mVersatileExpressMpCoreInfoTable[] = {
  25   {
  26     // Cluster 0, Core 0
  27     0x0, 0x0,
  28
  29     // NOTE:
  30     // The foundation model does not have the VE_SYS_REGS like all the other VE
  31     // platforms. We pick a spot in RAM that *should* be safe in the simple case
  32     // of no UEFI apps interfering (Only the Linux loader getting used). By the
  33     // time we come to load Linux we should have all the cores in a safe place.
  34     // The image expects to be loaded at 0xa0000000. We also place the mailboxes
  35     // here as it does not matter if we corrupt the image at this time.
  36     // NOTE also see: "ArmVExpressSecLibRTSM/AArch64/RTSMFoundationBoot.S"
  37
  38     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  39     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  40     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  41     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  42     (UINT64)0x0
  43
  44   },
  45   {
  46     // Cluster 0, Core 1
  47     0x0, 0x1,
  48
  49     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  50     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  51     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  52     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  53     (UINT64)0x0
  54
  55   },
  56   {
  57     // Cluster 0, Core 2
  58     0x0, 0x2,
  59
  60     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  61     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  62     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  63     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  64     (UINT64)0x0
  65   },
  66   {
  67     // Cluster 0, Core 3
  68     0x0, 0x3,
  69
  70     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  71     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  72     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  73     (EFI_PHYSICAL_ADDRESS)0xa0000000,
  74     (UINT64)0x0
  75   }
  76 };
  77
  78 /**
  79   Return the current Boot Mode
  80
  81   This function returns the boot reason on the platform
  82
  83   @return   Return the current Boot Mode of the platform
  84
  85 **/
  86 EFI_BOOT_MODE
  87 ArmPlatformGetBootMode (
  88   VOID
  89   )
  90 {
  91   return BOOT_WITH_FULL_CONFIGURATION;
  92 }
  93
  94 /**
  95   Initialize controllers that must setup in the normal world
  96
  97   This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim
  98   in the PEI phase.
  99
 100 **/
 101 RETURN_STATUS
 102 ArmPlatformInitialize (
 103   IN  UINTN                     MpId
 104   )
 105 {
 106   /* The Foundation model has no SP810 to initialise. */
 107
 108   return RETURN_SUCCESS;
 109 }
 110
 111 /**
 112   Initialize the system (or sometimes called permanent) memory
 113
 114   This memory is generally represented by the DRAM.
 115
 116 **/
 117 VOID
 118 ArmPlatformInitializeSystemMemory (
 119   VOID
 120   )
 121 {
 122   // Nothing to do here
 123 }
 124
 125 EFI_STATUS
 126 PrePeiCoreGetMpCoreInfo (
 127   OUT UINTN                   *CoreCount,
 128   OUT ARM_CORE_INFO           **ArmCoreTable
 129   )
 130 {
 131   // Foundation model has no VE_SYS_REGS
 132   // Only support one cluster
 133   *CoreCount    = ArmGetCpuCountPerCluster ();
 134   *ArmCoreTable = mVersatileExpressMpCoreInfoTable;
 135
 136   return EFI_SUCCESS;
 137 }
 138
 139 // Needs to be declared in the file. Otherwise gArmMpCoreInfoPpiGuid is undefined in the context of PrePeiCore
 140 EFI_GUID mArmMpCoreInfoPpiGuid = ARM_MP_CORE_INFO_PPI_GUID;
 141 ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
 142
 143 EFI_PEI_PPI_DESCRIPTOR      gPlatformPpiTable[] = {
 144   {
 145     EFI_PEI_PPI_DESCRIPTOR_PPI,
 146     &mArmMpCoreInfoPpiGuid,
 147     &mMpCoreInfoPpi
 148   }
 149 };
 150
 151 VOID
 152 ArmPlatformGetPlatformPpiList (
 153   OUT UINTN                   *PpiListSize,
 154   OUT EFI_PEI_PPI_DESCRIPTOR  **PpiList
 155   )
 156 {
 157   *PpiListSize = sizeof(gPlatformPpiTable);
 158   *PpiList = gPlatformPpiTable;
 159 }