/** @file
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* Generic Timer Description Table (GTDT)
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*
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* Copyright (c) 2012 - 2016, ARM Limited. All rights reserved.
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* Copyright (c) 2018, Linaro 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/AcpiLib.h>
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#include <Library/PcdLib.h>
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#include <IndustryStandard/Acpi.h>
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#include "AcpiTables.h"
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#define SYSTEM_TIMER_BASE_ADDRESS 0xFFFFFFFFFFFFFFFF
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#define GTDT_GLOBAL_FLAGS 0
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#define GTDT_GTIMER_FLAGS EFI_ACPI_6_0_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY
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#pragma pack (1)
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typedef struct {
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EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt;
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EFI_ACPI_6_0_GTDT_GT_BLOCK_STRUCTURE TimerBase;
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EFI_ACPI_6_0_GTDT_GT_BLOCK_TIMER_STRUCTURE TimerFrame;
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EFI_ACPI_6_0_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE Watchdog;
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} EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLES;
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#pragma pack ()
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EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = {
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{
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__ACPI_HEADER(
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EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
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EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLES,
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EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION
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),
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SYSTEM_TIMER_BASE_ADDRESS, // UINT64 PhysicalAddress
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0, // UINT32 Reserved
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FixedPcdGet32 (PcdArmArchTimerSecIntrNum), // UINT32 SecurePL1TimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 SecurePL1TimerFlags
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FixedPcdGet32 (PcdArmArchTimerIntrNum), // UINT32 NonSecurePL1TimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL1TimerFlags
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FixedPcdGet32 (PcdArmArchTimerVirtIntrNum), // UINT32 VirtualTimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 VirtualTimerFlags
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FixedPcdGet32 (PcdArmArchTimerHypIntrNum), // UINT32 NonSecurePL2TimerGSIV
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GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL2TimerFlags
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0xFFFFFFFFFFFFFFFF, // UINT64 CntReadBasePhysicalAddress
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2, // UINT32 PlatformTimerCount
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sizeof (EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE) // UINT32 PlatfromTimerOffset
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},
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{
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EFI_ACPI_6_0_GTDT_GT_BLOCK, // UINT8 Type
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sizeof (EFI_ACPI_6_0_GTDT_GT_BLOCK_STRUCTURE) +
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sizeof (EFI_ACPI_6_0_GTDT_GT_BLOCK_TIMER_STRUCTURE),
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// UINT16 Length
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EFI_ACPI_RESERVED_BYTE, // UINT8 Reserved
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0x2A810000, // UINT64 CntCtlBase
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1, // UINT32 GTBlockTimerCount
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sizeof (EFI_ACPI_6_0_GTDT_GT_BLOCK_STRUCTURE) // UINT32 GTBlockTimerOffset
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},
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{
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0, // UINT8 GTFrameNumber
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{0, 0, 0}, // UINT8 Reserved[3]
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0x2A830000, // UINT64 CntBaseX
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0xFFFFFFFFFFFFFFFF, // UINT64 CntEL0BaseX
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92, // UINT32 GTxPhysicalTimerGSIV
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0, // UINT32 GTxPhysicalTimerFlags
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0, // UINT32 GTxVirtualTimerGSIV
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0, // UINT32 GTxVirtualTimerFlags
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EFI_ACPI_6_0_GTDT_GT_BLOCK_COMMON_FLAG_ALWAYS_ON_CAPABILITY
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// UINT32 GTxCommonFlags
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},
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EFI_ACPI_6_0_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT (
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FixedPcdGet32 (PcdGenericWatchdogRefreshBase),
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FixedPcdGet32 (PcdGenericWatchdogControlBase),
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94,
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0),
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};
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//
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// Reference the table being generated to prevent the optimizer
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// from removing the data structure from the executable
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//
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VOID* CONST ReferenceAcpiTable = &Gtdt;
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