1 /** @file 2 * Generic Timer Description Table (GTDT) 3 * 4 * Copyright (c) 2012 - 2014, ARM Limited. All rights reserved. 5 * Copyright (c) 2016, Linaro Ltd. All rights reserved 6 * 7 * This program and the accompanying materials 8 * are licensed and made available under the terms and conditions of the BSD License 9 * which accompanies this distribution. The full text of the license may be found at 10 * http://opensource.org/licenses/bsd-license.php 11 * 12 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 * 15 **/ 16 17 #include "FvpPlatform.h" 18 #include <Library/AcpiLib.h> 19 #include <Library/PcdLib.h> 20 #include <IndustryStandard/Acpi61.h> 21 22 #define FVP_SYSTEM_TIMER_BASE_ADDRESS 0x000000002a430000 23 #define FVP_CNT_READ_BASE_ADDRESS 0x000000002a800000 24 25 #define FVP_SECURE_TIMER_EL1_GSIV 0x1D 26 #define FVP_NON_SECURE_TIMER_EL1_GSIV 0x1E 27 #define FVP_VIRTUAL_TIMER_GSIV 0x1B 28 #define FVP_NON_SECURE_EL2_GSIV 0x1A 29 30 #define GTDT_TIMER_EDGE_TRIGGERED EFI_ACPI_6_1_GTDT_TIMER_FLAG_TIMER_INTERRUPT_MODE 31 #define GTDT_TIMER_LEVEL_TRIGGERED 0 32 #define GTDT_TIMER_ACTIVE_LOW EFI_ACPI_6_1_GTDT_TIMER_FLAG_TIMER_INTERRUPT_POLARITY 33 #define GTDT_TIMER_ACTIVE_HIGH 0 34 #define GTDT_TIMER_SAVE_CONTEXT EFI_ACPI_6_1_GTDT_TIMER_FLAG_ALWAYS_ON_CAPABILITY 35 #define GTDT_TIMER_LOSE_CONTEXT 0 36 37 #define FVP_GTDT_GTIMER_FLAGS (GTDT_TIMER_LOSE_CONTEXT | GTDT_TIMER_ACTIVE_HIGH | GTDT_TIMER_EDGE_TRIGGERED) 38 39 #define FVP_PLATFORM_TIMER_COUNT 2 40 #define FVP_TIMER_FRAMES_COUNT 2 41 #define FVP_WATCHDOG_COUNT 1 42 43 #define FVP_GT_BLOCK_CTL_BASE 0x000000002A810000 44 #define FVP_GT_BLOCK_FRAME0_CTL_BASE 0x000000002A820000 45 #define FVP_GT_BLOCK_FRAME0_CTL_EL0_BASE 0xFFFFFFFFFFFFFFFF 46 #define FVP_GT_BLOCK_FRAME0_GSIV 0x39 47 48 #define FVP_GT_BLOCK_FRAME1_CTL_BASE 0x000000002A830000 49 #define FVP_GT_BLOCK_FRAME1_CTL_EL0_BASE 0xFFFFFFFFFFFFFFFF 50 #define FVP_GT_BLOCK_FRAME1_GSIV 0x3A 51 52 #define GTX_TIMER_EDGE_TRIGGERED EFI_ACPI_6_1_GTDT_GT_BLOCK_TIMER_FLAG_TIMER_INTERRUPT_MODE 53 #define GTX_TIMER_LEVEL_TRIGGERED 0 54 #define GTX_TIMER_ACTIVE_LOW EFI_ACPI_6_1_GTDT_GT_BLOCK_TIMER_FLAG_TIMER_INTERRUPT_POLARITY 55 #define GTX_TIMER_ACTIVE_HIGH 0 56 57 #define FVP_GTX_TIMER_FLAGS (GTX_TIMER_ACTIVE_HIGH | GTX_TIMER_LEVEL_TRIGGERED) 58 59 #define GTX_TIMER_SECURE EFI_ACPI_6_1_GTDT_GT_BLOCK_COMMON_FLAG_SECURE_TIMER 60 #define GTX_TIMER_NON_SECURE 0 61 #define GTX_TIMER_SAVE_CONTEXT EFI_ACPI_6_1_GTDT_GT_BLOCK_COMMON_FLAG_ALWAYS_ON_CAPABILITY 62 #define GTX_TIMER_LOSE_CONTEXT 0 63 64 #define FVP_GTX_COMMON_FLAGS (GTX_TIMER_SAVE_CONTEXT | GTX_TIMER_SECURE) 65 66 #define FVP_SBSA_WATCHDOG_REFRESH_BASE 0x000000002a450000 67 #define FVP_SBSA_WATCHDOG_CONTROL_BASE 0x000000002a440000 68 #define FVP_SBSA_WATCHDOG_GSIV 0x3B 69 70 #define SBSA_WATCHDOG_EDGE_TRIGGERED EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_TIMER_INTERRUPT_MODE 71 #define SBSA_WATCHDOG_LEVEL_TRIGGERED 0 72 #define SBSA_WATCHDOG_ACTIVE_LOW EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_TIMER_INTERRUPT_POLARITY 73 #define SBSA_WATCHDOG_ACTIVE_HIGH 0 74 #define SBSA_WATCHDOG_SECURE EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_SECURE_TIMER 75 #define SBSA_WATCHDOG_NON_SECURE 0 76 77 #define FVP_SBSA_WATCHDOG_FLAGS (SBSA_WATCHDOG_NON_SECURE | SBSA_WATCHDOG_ACTIVE_HIGH | SBSA_WATCHDOG_LEVEL_TRIGGERED) 78 79 #pragma pack (1) 80 81 typedef struct { 82 EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt; 83 EFI_ACPI_6_1_GTDT_GT_BLOCK_STRUCTURE GtBlock; 84 EFI_ACPI_6_1_GTDT_GT_BLOCK_TIMER_STRUCTURE Frames[FVP_TIMER_FRAMES_COUNT]; 85 EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE Watchdogs[FVP_WATCHDOG_COUNT]; 86 } FVP_GENERIC_TIMER_DESCRIPTION_TABLES; 87 88 #pragma pack () 89 90 FVP_GENERIC_TIMER_DESCRIPTION_TABLES Gtdt = { 91 { 92 ARM_ACPI_HEADER( 93 EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE, 94 FVP_GENERIC_TIMER_DESCRIPTION_TABLES, 95 EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION 96 ), 97 FVP_SYSTEM_TIMER_BASE_ADDRESS, // UINT64 PhysicalAddress 98 EFI_ACPI_RESERVED_DWORD, // UINT32 Reserved 99 FVP_SECURE_TIMER_EL1_GSIV, // UINT32 SecurePL1TimerGSIV 100 FVP_GTDT_GTIMER_FLAGS, // UINT32 SecurePL1TimerFlags 101 FVP_NON_SECURE_TIMER_EL1_GSIV, // UINT32 NonSecurePL1TimerGSIV 102 FVP_GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL1TimerFlags 103 FVP_VIRTUAL_TIMER_GSIV, // UINT32 VirtualTimerGSIV 104 FVP_GTDT_GTIMER_FLAGS, // UINT32 VirtualTimerFlags 105 FVP_NON_SECURE_EL2_GSIV, // UINT32 NonSecurePL2TimerGSIV 106 FVP_GTDT_GTIMER_FLAGS, // UINT32 NonSecurePL2TimerFlags 107 FVP_CNT_READ_BASE_ADDRESS, // UINT64 CntReadBasePhysicalAddress 108 FVP_PLATFORM_TIMER_COUNT, // UINT32 PlatformTimerCount 109 sizeof (EFI_ACPI_6_1_GENERIC_TIMER_DESCRIPTION_TABLE) // UINT32 PlatfromTimerOffset 110 }, 111 { 112 EFI_ACPI_6_1_GTDT_GT_BLOCK, // UINT8 Type 113 sizeof(EFI_ACPI_6_1_GTDT_GT_BLOCK_STRUCTURE) // UINT16 Length 114 + sizeof(EFI_ACPI_6_1_GTDT_GT_BLOCK_TIMER_STRUCTURE) * 115 FVP_TIMER_FRAMES_COUNT, 116 EFI_ACPI_RESERVED_BYTE, // UINT8 Reserved 117 FVP_GT_BLOCK_CTL_BASE, // UINT64 CntCtlBase 118 FVP_TIMER_FRAMES_COUNT, // UINT32 GTBlockTimerCount 119 sizeof(EFI_ACPI_6_1_GTDT_GT_BLOCK_STRUCTURE) // UINT32 GTBlockTimerOffset 120 }, 121 { 122 { 123 0, // UINT8 GTFrameNumber 124 {EFI_ACPI_RESERVED_BYTE, 125 EFI_ACPI_RESERVED_BYTE, 126 EFI_ACPI_RESERVED_BYTE}, // UINT8 Reserved[3] 127 FVP_GT_BLOCK_FRAME0_CTL_BASE, // UINT64 CntBaseX 128 FVP_GT_BLOCK_FRAME0_CTL_EL0_BASE, // UINT64 CntEL0BaseX 129 FVP_GT_BLOCK_FRAME0_GSIV, // UINT32 GTxPhysicalTimerGSIV 130 FVP_GTX_TIMER_FLAGS, // UINT32 GTxPhysicalTimerFlags 131 0, // UINT32 GTxVirtualTimerGSIV 132 0, // UINT32 GTxVirtualTimerFlags 133 FVP_GTX_COMMON_FLAGS // UINT32 GTxCommonFlags 134 }, 135 { 136 1, // UINT8 GTFrameNumber 137 {EFI_ACPI_RESERVED_BYTE, 138 EFI_ACPI_RESERVED_BYTE, 139 EFI_ACPI_RESERVED_BYTE}, // UINT8 Reserved[3] 140 FVP_GT_BLOCK_FRAME1_CTL_BASE, // UINT64 CntBaseX 141 FVP_GT_BLOCK_FRAME1_CTL_EL0_BASE, // UINT64 CntEL0BaseX 142 FVP_GT_BLOCK_FRAME1_GSIV, // UINT32 GTxPhysicalTimerGSIV 143 FVP_GTX_TIMER_FLAGS, // UINT32 GTxPhysicalTimerFlags 144 0, // UINT32 GTxVirtualTimerGSIV 145 0, // UINT32 GTxVirtualTimerFlags 146 FVP_GTX_COMMON_FLAGS // UINT32 GTxCommonFlags 147 } 148 }, 149 { 150 { 151 EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG, // UINT8 Type 152 sizeof(EFI_ACPI_6_1_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE), // UINT16 Length 153 EFI_ACPI_RESERVED_BYTE, // UINT8 Reserved 154 FVP_SBSA_WATCHDOG_REFRESH_BASE, // UINT64 RefreshFramePhysicalAddress 155 FVP_SBSA_WATCHDOG_CONTROL_BASE, // UINT64 WatchdogControlFramePhysicalAddress 156 FVP_SBSA_WATCHDOG_GSIV, // UINT32 WatchdogTimerGSIV 157 FVP_SBSA_WATCHDOG_FLAGS // UINT32 WatchdogTimerFlags 158 } 159 } 160 }; 161 162 // 163 // Reference the table being generated to prevent the optimizer from removing the 164 // data structure from the executable 165 // 166 VOID* CONST ReferenceAcpiTable = &Gtdt; 167
