ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbLibRTSM/ArmRealViewEb.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/IoLib.h>
  16 #include <Library/ArmPlatformLib.h>
  17 #include <Library/DebugLib.h>
  18 #include <Library/PcdLib.h>
  19
  20 #include <Drivers/PL341Dmc.h>
  21 #include <Drivers/SP804Timer.h>
  22
  23 #include <Ppi/ArmMpCoreInfo.h>
  24
  25 #include <ArmPlatform.h>
  26
  27 ARM_CORE_INFO mRealViewEbMpCoreInfoTable[] = {
  28   {
  29     // Cluster 0, Core 0
  30     0x0, 0x0,
  31
  32     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  33     (EFI_PHYSICAL_ADDRESS)ARM_EB_SYS_FLAGS_REG,
  34     (EFI_PHYSICAL_ADDRESS)ARM_EB_SYS_FLAGS_SET_REG,
  35     (EFI_PHYSICAL_ADDRESS)ARM_EB_SYS_FLAGS_CLR_REG,
  36     (UINT64)0xFFFFFFFF
  37   },
  38   {
  39     // Cluster 0, Core 1
  40     0x0, 0x1,
  41
  42     // MP Core MailBox Set/Get/Clear Addresses and Clear Value
  43     (EFI_PHYSICAL_ADDRESS)ARM_EB_SYS_FLAGS_REG,
  44     (EFI_PHYSICAL_ADDRESS)ARM_EB_SYS_FLAGS_SET_REG,
  45     (EFI_PHYSICAL_ADDRESS)ARM_EB_SYS_FLAGS_CLR_REG,
  46     (UINT64)0xFFFFFFFF
  47   }
  48 };
  49
  50 /**
  51   Return the current Boot Mode
  52
  53   This function returns the boot reason on the platform
  54
  55 **/
  56 EFI_BOOT_MODE
  57 ArmPlatformGetBootMode (
  58   VOID
  59   )
  60 {
  61   return BOOT_WITH_FULL_CONFIGURATION;
  62 }
  63
  64 /**
  65   Initialize controllers that must setup in the normal world
  66
  67   This function is called by the ArmPlatformPkg/PrePi or ArmPlatformPkg/PlatformPei
  68   in the PEI phase.
  69
  70 **/
  71 VOID
  72 ArmPlatformNormalInitialize (
  73   VOID
  74   )
  75 {
  76   // Disable memory remapping and return to normal mapping
  77   MmioOr32 (ARM_EB_SYSCTRL, BIT8); //EB_SP810_CTRL_BASE
  78
  79   // Configure periodic timer (TIMER0) for 1MHz operation
  80   MmioOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER0_TIMCLK);
  81   // Configure 1MHz clock
  82   MmioOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, SP810_SYS_CTRL_TIMER1_TIMCLK);
  83   // configure SP810 to use 1MHz clock and disable
  84   MmioAndThenOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER2_EN, SP810_SYS_CTRL_TIMER2_TIMCLK);
  85   // Configure SP810 to use 1MHz clock and disable
  86   MmioAndThenOr32 (SP810_CTRL_BASE + SP810_SYS_CTRL_REG, ~SP810_SYS_CTRL_TIMER3_EN, SP810_SYS_CTRL_TIMER3_TIMCLK);
  87 }
  88
  89 /**
  90   Initialize the system (or sometimes called permanent) memory
  91
  92   This memory is generally represented by the DRAM.
  93
  94 **/
  95 VOID
  96 ArmPlatformInitializeSystemMemory (
  97   VOID
  98   )
  99 {
 100   // We do not need to initialize the System Memory on RTSM
 101 }
 102
 103 EFI_STATUS
 104 PrePeiCoreGetMpCoreInfo (
 105   OUT UINTN                   *CoreCount,
 106   OUT ARM_CORE_INFO           **ArmCoreTable
 107   )
 108 {
 109   if ((MmioRead32 (ARM_EB_SYS_PROCID0_REG) & ARM_EB_SYS_PROC_ID_MASK) == ARM_EB_SYS_PROC_ID_CORTEX_A9) {
 110     *CoreCount    = sizeof(mRealViewEbMpCoreInfoTable) / sizeof(ARM_CORE_INFO);
 111     *ArmCoreTable = mRealViewEbMpCoreInfoTable;
 112     return EFI_SUCCESS;
 113   } else {
 114     return EFI_UNSUPPORTED;
 115   }
 116 }
 117
 118 // Needs to be declared in the file. Otherwise gArmMpCoreInfoPpiGuid is undefined in the contect of PrePeiCore
 119 EFI_GUID mArmMpCoreInfoPpiGuid = ARM_MP_CORE_INFO_PPI_GUID;
 120 ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
 121
 122 EFI_PEI_PPI_DESCRIPTOR      gPlatformPpiTable[] = {
 123   {
 124     EFI_PEI_PPI_DESCRIPTOR_PPI,
 125     &mArmMpCoreInfoPpiGuid,
 126     &mMpCoreInfoPpi
 127   }
 128 };
 129
 130 VOID
 131 ArmPlatformGetPlatformPpiList (
 132   OUT UINTN                   *PpiListSize,
 133   OUT EFI_PEI_PPI_DESCRIPTOR  **PpiList
 134   )
 135 {
 136   *PpiListSize = sizeof(gPlatformPpiTable);
 137   *PpiList = gPlatformPpiTable;
 138 }
 139