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diff --git a/Silicon/Hisilicon/Hi1610/Hi1610AcpiTables/Gtdt.aslc b/Silicon/Hisilicon/Hi1610/Hi1610AcpiTables/Gtdt.aslc
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+/** @file
+* Generic Timer Description Table (GTDT)
+*
+* Copyright (c) 2012 - 2014, ARM Limited. All rights reserved.
+* Copyright (c) 2015, Hisilicon Limited. All rights reserved.
+* Copyright (c) 2015, Linaro 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.
+*
+* Based on the files under ArmPlatformPkg/ArmJunoPkg/AcpiTables/
+*
+**/
+
+#include "Hi1610Platform.h"
+
+#include <Library/AcpiLib.h>
+#include <Library/PcdLib.h>
+#include <IndustryStandard/Acpi.h>
+
+#define GTDT_GLOBAL_FLAGS_MAPPED EFI_ACPI_6_1_GTDT_GLOBAL_FLAG_MEMORY_MAPPED_BLOCK_PRESENT
+#define GTDT_GLOBAL_FLAGS_NOT_MAPPED 0
+#define GTDT_GLOBAL_FLAGS_EDGE EFI_ACPI_6_1_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_1_GTDT_TIMER_FLAG_TIMER_INTERRUPT_MODE
+#define GTDT_TIMER_LEVEL_TRIGGERED 0
+#define GTDT_TIMER_ACTIVE_LOW EFI_ACPI_6_1_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_1_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt;
+ EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE Watchdogs[HI1610_WATCHDOG_COUNT];
+} EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLES;
+
+#pragma pack ()
+
+EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = {
+ {
+ ARM_ACPI_HEADER(
+ EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
+ EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLES,
+ EFI_ACPI_6_1_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
+#ifdef notyet
+ PV660_WATCHDOG_COUNT, // UINT32 PlatformTimerCount
+ sizeof (EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLE) // UINT32 PlatfromTimerOffset
+ },
+ {
+ EFI_ACPI_6_1_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT(
+ //FixedPcdGet32 (PcdGenericWatchdogRefreshBase), FixedPcdGet32 (PcdGenericWatchdogControlBase), 93, 0),
+ 0, 0, 0, 0),
+ EFI_ACPI_6_1_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT(
+ //FixedPcdGet32 (PcdGenericWatchdogRefreshBase), FixedPcdGet32 (PcdGenericWatchdogControlBase), 94, EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_SECURE_TIMER)
+ 0, 0, 0, 0)
+ }
+#else /* !notyet */
+ 0, 0
+ }
+#endif
+ };
+
+//
+// Reference the table being generated to prevent the optimizer from removing the
+// data structure from the executable
+//
+VOID* CONST ReferenceAcpiTable = &Gtdt;
+