/** @file
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*
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* Copyright (c) 2011-2013, ARM Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-2-Clause-Patent
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*
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**/
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#include <Library/IoLib.h>
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#include <Library/ArmPlatformLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Ppi/ArmMpCoreInfo.h>
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#include <ArmPlatform.h>
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/**
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Return the core per cluster. The method may differ per core type
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This function might be called from assembler before any stack is set.
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@return Return the core count per cluster
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**/
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UINTN
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ArmGetCpuCountPerCluster (
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VOID
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);
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ARM_CORE_INFO mVersatileExpressMpCoreInfoTable[] = {
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{
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// Cluster 0, Core 0
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0x0, 0x0,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 0, Core 1
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0x0, 0x1,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 0, Core 2
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0x0, 0x2,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 0, Core 3
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0x0, 0x3,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 1, Core 0
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0x1, 0x0,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 1, Core 1
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0x1, 0x1,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 1, Core 2
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0x1, 0x2,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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},
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{
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// Cluster 1, Core 3
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0x1, 0x3,
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// MP Core MailBox Set/Get/Clear Addresses and Clear Value
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_SET_REG,
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(EFI_PHYSICAL_ADDRESS)ARM_VE_SYS_FLAGS_CLR_REG,
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(UINT64)0xFFFFFFFF
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}
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};
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/**
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Return the current Boot Mode
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This function returns the boot reason on the platform
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@return Return the current Boot Mode of the platform
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**/
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EFI_BOOT_MODE
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ArmPlatformGetBootMode (
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VOID
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)
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{
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return BOOT_WITH_FULL_CONFIGURATION;
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}
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/**
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Initialize controllers that must setup in the normal world
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This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim
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in the PEI phase.
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**/
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RETURN_STATUS
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ArmPlatformInitialize (
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IN UINTN MpId
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)
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{
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if (!ArmPlatformIsPrimaryCore (MpId)) {
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return RETURN_SUCCESS;
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}
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// Disable memory remapping and return to normal mapping
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MmioOr32 (SP810_CTRL_BASE, BIT8);
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return RETURN_SUCCESS;
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}
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EFI_STATUS
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PrePeiCoreGetMpCoreInfo (
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OUT UINTN *CoreCount,
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OUT ARM_CORE_INFO **ArmCoreTable
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)
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{
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UINT32 ProcType;
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ProcType = MmioRead32 (ARM_VE_SYS_PROCID0_REG) & ARM_VE_SYS_PROC_ID_MASK;
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if ((ProcType == ARM_VE_SYS_PROC_ID_CORTEX_A9) || (ProcType == ARM_VE_SYS_PROC_ID_CORTEX_A15)) {
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// Only support one cluster on all but ARMv8 FVP platform. FVP still uses CortexA9 ID.
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*CoreCount = ArmGetCpuCountPerCluster ();
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*ArmCoreTable = mVersatileExpressMpCoreInfoTable;
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return EFI_SUCCESS;
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} else {
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return EFI_UNSUPPORTED;
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}
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}
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ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
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EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable[] = {
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{
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EFI_PEI_PPI_DESCRIPTOR_PPI,
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&gArmMpCoreInfoPpiGuid,
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&mMpCoreInfoPpi
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}
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};
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VOID
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ArmPlatformGetPlatformPpiList (
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OUT UINTN *PpiListSize,
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OUT EFI_PEI_PPI_DESCRIPTOR **PpiList
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)
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{
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*PpiListSize = sizeof(gPlatformPpiTable);
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*PpiList = gPlatformPpiTable;
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}
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