mirror of https://github.com/acidanthera/audk.git
67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/** @file
|
|
Arm generic timer parser.
|
|
|
|
Copyright (c) 2021, ARM Limited. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
@par Reference(s):
|
|
- linux/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
|
|
**/
|
|
|
|
#ifndef ARM_GENERIC_TIMER_PARSER_H_
|
|
#define ARM_GENERIC_TIMER_PARSER_H_
|
|
|
|
/** An enum listing the FDT interrupt items.
|
|
*/
|
|
typedef enum FdtTimerInterruptItems {
|
|
FdtSecureTimerIrq, ///< Secure timer IRQ
|
|
FdtNonSecureTimerIrq, ///< Non-secure timer IRQ
|
|
FdtVirtualTimerIrq, ///< Virtual timer IRQ
|
|
FdtHypervisorTimerIrq, ///< Hypervisor timer IRQ
|
|
FdtMaxTimerItem ///< Max timer item
|
|
} FDT_TIMER_INTERRUPT_ITEMS;
|
|
|
|
/** CM_ARM_BOOT_ARCH_INFO parser function.
|
|
|
|
The following structure is populated:
|
|
typedef struct CmArmGenericTimerInfo {
|
|
UINT64 CounterControlBaseAddress; // {default}
|
|
UINT64 CounterReadBaseAddress; // {default}
|
|
UINT32 SecurePL1TimerGSIV; // {Populated}
|
|
UINT32 SecurePL1TimerFlags; // {Populated}
|
|
UINT32 NonSecurePL1TimerGSIV; // {Populated}
|
|
UINT32 NonSecurePL1TimerFlags; // {Populated}
|
|
UINT32 VirtualTimerGSIV; // {Populated}
|
|
UINT32 VirtualTimerFlags; // {Populated}
|
|
UINT32 NonSecurePL2TimerGSIV; // {Populated}
|
|
UINT32 NonSecurePL2TimerFlags; // {Populated}
|
|
UINT32 VirtualPL2TimerGSIV; // {default}
|
|
UINT32 VirtualPL2TimerFlags; // {default}
|
|
} CM_ARM_GENERIC_TIMER_INFO;
|
|
|
|
A parser parses a Device Tree to populate a specific CmObj type. None,
|
|
one or many CmObj can be created by the parser.
|
|
The created CmObj are then handed to the parser's caller through the
|
|
HW_INFO_ADD_OBJECT interface.
|
|
This can also be a dispatcher. I.e. a function that not parsing a
|
|
Device Tree but calling other parsers.
|
|
|
|
@param [in] FdtParserHandle A handle to the parser instance.
|
|
@param [in] FdtBranch When searching for DT node name, restrict
|
|
the search to this Device Tree branch.
|
|
|
|
@retval EFI_SUCCESS The function completed successfully.
|
|
@retval EFI_ABORTED An error occurred.
|
|
@retval EFI_INVALID_PARAMETER Invalid parameter.
|
|
@retval EFI_NOT_FOUND Not found.
|
|
@retval EFI_UNSUPPORTED Unsupported.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ArmGenericTimerInfoParser (
|
|
IN CONST FDT_HW_INFO_PARSER_HANDLE FdtParserHandle,
|
|
IN INT32 FdtBranch
|
|
);
|
|
|
|
#endif // ARM_GENERIC_TIMER_PARSER_H_
|