audk/ArmPlatformPkg/Include/Drivers/SP805Watchdog.h

90 lines
3.1 KiB
C

/** @file
*
* Copyright (c) 2011, 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.
*
**/
#ifndef __SP805_WATCHDOG_H__
#define __SP805_WATCHDOG_H__
// SP805 Watchdog Registers
#define SP805_WDOG_LOAD_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0x000)
#define SP805_WDOG_CURRENT_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0x004)
#define SP805_WDOG_CONTROL_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0x008)
#define SP805_WDOG_INT_CLR_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0x00C)
#define SP805_WDOG_RAW_INT_STS_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0x010)
#define SP805_WDOG_MSK_INT_STS_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0x014)
#define SP805_WDOG_LOCK_REG ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xC00)
#define SP805_WDOG_PERIPH_ID0 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFE0)
#define SP805_WDOG_PERIPH_ID1 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFE4)
#define SP805_WDOG_PERIPH_ID2 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFE8)
#define SP805_WDOG_PERIPH_ID3 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFEC)
#define SP805_WDOG_PCELL_ID0 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFF0)
#define SP805_WDOG_PCELL_ID1 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFF4)
#define SP805_WDOG_PCELL_ID2 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFF8)
#define SP805_WDOG_PCELL_ID3 ((UINT32)PcdGet32 (PcdSP805WatchdogBase) + 0xFFC)
// Timer control register bit definitions
#define SP805_WDOG_CTRL_INTEN BIT0
#define SP805_WDOG_CTRL_RESEN BIT1
#define SP805_WDOG_RAW_INT_STS_WDOGRIS BIT0
#define SP805_WDOG_MSK_INT_STS_WDOGMIS BIT0
#define SP805_WDOG_LOCK_IS_UNLOCKED 0x00000000
#define SP805_WDOG_LOCK_IS_LOCKED 0x00000001
#define SP805_WDOG_SPECIAL_UNLOCK_CODE 0x1ACCE551
VOID
EFIAPI
ExitBootServicesEvent (
IN EFI_EVENT Event,
IN VOID *Context
);
EFI_STATUS
EFIAPI
SP805SetTimerPeriod (
IN CONST EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
IN UINT64 TimerPeriod // In 100ns units
);
EFI_STATUS
EFIAPI
SP805GetTimerPeriod (
IN CONST EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
OUT UINT64 *TimerPeriod
);
EFI_STATUS
EFIAPI
SP805RegisterHandler (
IN CONST EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
IN EFI_WATCHDOG_TIMER_NOTIFY NotifyFunction
);
EFI_STATUS
SP805Initialize (
VOID
);
EFI_STATUS
EFIAPI
SP805InstallProtocol (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
#endif // __SP805_WATCHDOG_H__