1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/** @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_5_0_GTDT_GLOBAL_FLAG_MEMORY_MAPPED_BLOCK_PRESENT
#define GTDT_GLOBAL_FLAGS_NOT_MAPPED 0
#define GTDT_GLOBAL_FLAGS_EDGE EFI_ACPI_5_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_5_0_GTDT_TIMER_FLAG_TIMER_INTERRUPT_MODE
#define GTDT_TIMER_LEVEL_TRIGGERED 0
#define GTDT_TIMER_ACTIVE_LOW EFI_ACPI_5_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)
#ifdef ARM_JUNO_ACPI_5_0
EFI_ACPI_5_0_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt = {
ARM_ACPI_HEADER(
EFI_ACPI_5_0_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
EFI_ACPI_5_0_GENERIC_TIMER_DESCRIPTION_TABLE,
EFI_ACPI_5_0_GENERIC_TIMER_DESCRIPTION_TABLE_REVISION
),
SYSTEM_TIMER_BASE_ADDRESS, // UINT64 PhysicalAddress
GTDT_GLOBAL_FLAGS, // UINT32 GlobalFlags
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
};
#else
#pragma pack (1)
typedef struct {
EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLE Gtdt;
#if (JUNO_WATCHDOG_COUNT != 0)
EFI_ACPI_5_1_GTDT_SBSA_GENERIC_WATCHDOG_STRUCTURE Watchdogs[JUNO_WATCHDOG_COUNT];
#endif
} GENERIC_TIMER_DESCRIPTION_TABLE;
#pragma pack ()
GENERIC_TIMER_DESCRIPTION_TABLE Gtdt = {
{
ARM_ACPI_HEADER(
EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLE_SIGNATURE,
GENERIC_TIMER_DESCRIPTION_TABLE,
EFI_ACPI_5_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
JUNO_WATCHDOG_COUNT, // UINT32 PlatformTimerCount
sizeof (EFI_ACPI_5_1_GENERIC_TIMER_DESCRIPTION_TABLE) // UINT32 PlatfromTimerOffset
},
#if (JUNO_WATCHDOG_COUNT != 0)
{
EFI_ACPI_5_1_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT(
FixedPcdGet64 (PcdGenericWatchdogRefreshBase),
FixedPcdGet64 (PcdGenericWatchdogControlBase),
93,
0),
EFI_ACPI_5_1_SBSA_GENERIC_WATCHDOG_STRUCTURE_INIT(
FixedPcdGet64 (PcdGenericWatchdogRefreshBase),
FixedPcdGet64 (PcdGenericWatchdogControlBase),
94,
EFI_ACPI_5_1_GTDT_SBSA_GENERIC_WATCHDOG_FLAG_SECURE_TIMER)
}
#endif
};
#endif
//
// Reference the table being generated to prevent the optimizer from removing the
// data structure from the executable
//
VOID* CONST ReferenceAcpiTable = &Gtdt;
|
