diff options
Diffstat (limited to 'Platforms/ARM/Ashbrook/AcpiTables/Ashbrook_5/Gtdt.aslc')
| -rw-r--r-- | Platforms/ARM/Ashbrook/AcpiTables/Ashbrook_5/Gtdt.aslc | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/Platforms/ARM/Ashbrook/AcpiTables/Ashbrook_5/Gtdt.aslc b/Platforms/ARM/Ashbrook/AcpiTables/Ashbrook_5/Gtdt.aslc new file mode 100644 index 0000000..af0eb39 --- /dev/null +++ b/Platforms/ARM/Ashbrook/AcpiTables/Ashbrook_5/Gtdt.aslc @@ -0,0 +1,83 @@ +/** @file +* Generic Timer Description Table (GTDT) +* +* Copyright (c) 2012 - 2016, ARM Limited. All rights reserved. +* +* This program and the accompanying materials +* are licensed and made available under the terms and conditions of the BSD License +* which accompanies this distribution. The full text of the license may be found at +* http://opensource.org/licenses/bsd-license.php +* +* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +* +**/ + +#include "ArmPlatform.h" +#include <Library/AcpiLib.h> +#include <Library/PcdLib.h> +#include <IndustryStandard/Acpi.h> + +#define GTDT_GLOBAL_FLAGS_MAPPED EFI_ACPI_6_0_GTDT_GLOBAL_FLAG_MEMORY_MAPPED_BLOCK_PRESENT +#define GTDT_GLOBAL_FLAGS_NOT_MAPPED 0 +#define GTDT_GLOBAL_FLAGS_EDGE EFI_ACPI_6_0_GTDT_GLOBAL_FLAG_INTERRUPT_MODE +#define GTDT_GLOBAL_FLAGS_LEVEL 0 + +// Note: We could have a build flag that switches between memory mapped/non-memory mapped timer +#ifdef SYSTEM_TIMER_BASE_ADDRESS + #define GTDT_GLOBAL_FLAGS (GTDT_GLOBAL_FLAGS_MAPPED | GTDT_GLOBAL_FLAGS_LEVEL) +#else + #define GTDT_GLOBAL_FLAGS (GTDT_GLOBAL_FLAGS_NOT_MAPPED | GTDT_GLOBAL_FLAGS_LEVEL) + #define SYSTEM_TIMER_BASE_ADDRESS 0xFFFFFFFFFFFFFFFF +#endif + +#define GTDT_TIMER_EDGE_TRIGGERED EFI_ACPI_6_0_GTDT_TIMER_FLAG_TIMER_INTERRUPT_MODE +#define GTDT_TIMER_LEVEL_TRIGGERED 0 +#define GTDT_TIMER_ACTIVE_LOW EFI_ACPI_6_0_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY +#define GTDT_TIMER_ACTIVE_HIGH 0 + +#define GTDT_GTIMER_FLAGS (GTDT_TIMER_ACTIVE_LOW | GTDT_TIMER_LEVEL_TRIGGERED) + + #pragma pack (1) + + typedef struct { + EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt; + EFI_ACPI_6_0_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE Watchdogs[ASHBROOK_WATCHDOG_COUNT]; + } EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLES; + + #pragma pack () + + EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = { + { + ARM_ACPI_HEADER( + EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE, + EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE, + EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION + ), + SYSTEM_TIMER_BASE_ADDRESS, // UINT64 PhysicalAddress + 0, // UINT32 Reserved + FixedPcdGet32 (PcdArmArchTimerSecIntrNum), // UINT32 SecurePL1TimerGSIV + GTDT_GTIMER_FLAGS, // UINT32 SecurePL1TimerFlags + FixedPcdGet32 (PcdArmArchTimerIntrNum), // UINT32 NonSecurePL1TimerGSIV + GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL1TimerFlags + FixedPcdGet32 (PcdArmArchTimerVirtIntrNum), // UINT32 VirtualTimerGSIV + GTDT_GTIMER_FLAGS, // UINT32 VirtualTimerFlags + FixedPcdGet32 (PcdArmArchTimerHypIntrNum), // UINT32 NonSecurePL2TimerGSIV + GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL2TimerFlags + 0xFFFFFFFFFFFFFFFF, // UINT64 CntReadBasePhysicalAddress + ASHBROOK_WATCHDOG_COUNT, // UINT32 PlatformTimerCount + sizeof (EFI_ACPI_6_0_GENERIC_TIMER_DESCRIPTION_TABLE) // UINT32 PlatfromTimerOffset + }, + { + EFI_ACPI_6_0_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT( + FixedPcdGet32 (PcdGenericWatchdogRefreshBase), FixedPcdGet32 (PcdGenericWatchdogControlBase), 93, 0), + EFI_ACPI_6_0_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT( + FixedPcdGet32 (PcdGenericWatchdogRefreshBase), FixedPcdGet32 (PcdGenericWatchdogControlBase), 94, EFI_ACPI_6_0_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_SECURE_TIMER) + } + }; + +// +// Reference the table being generated to prevent the optimizer from removing the +// data structure from the executable +// +VOID* CONST ReferenceAcpiTable = &Gtdt; |