audk/ArmPlatformPkg/Include/Drivers/PL031RealTimeClock.h

57 lines
2.5 KiB
C

/** @file
*
* Copyright (c) 2011 - 2014, 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 __PL031_REAL_TIME_CLOCK_H__
#define __PL031_REAL_TIME_CLOCK_H__
// PL031 Registers
#define PL031_RTC_DR_DATA_REGISTER 0x000
#define PL031_RTC_MR_MATCH_REGISTER 0x004
#define PL031_RTC_LR_LOAD_REGISTER 0x008
#define PL031_RTC_CR_CONTROL_REGISTER 0x00C
#define PL031_RTC_IMSC_IRQ_MASK_SET_CLEAR_REGISTER 0x010
#define PL031_RTC_RIS_RAW_IRQ_STATUS_REGISTER 0x014
#define PL031_RTC_MIS_MASKED_IRQ_STATUS_REGISTER 0x018
#define PL031_RTC_ICR_IRQ_CLEAR_REGISTER 0x01C
#define PL031_RTC_PERIPH_ID0 0xFE0
#define PL031_RTC_PERIPH_ID1 0xFE4
#define PL031_RTC_PERIPH_ID2 0xFE8
#define PL031_RTC_PERIPH_ID3 0xFEC
#define PL031_RTC_PCELL_ID0 0xFF0
#define PL031_RTC_PCELL_ID1 0xFF4
#define PL031_RTC_PCELL_ID2 0xFF8
#define PL031_RTC_PCELL_ID3 0xFFC
// PL031 Values
#define PL031_RTC_ENABLED 0x00000001
#define PL031_SET_IRQ_MASK 0x00000001
#define PL031_IRQ_TRIGGERED 0x00000001
#define PL031_CLEAR_IRQ 0x00000001
#define PL031_COUNTS_PER_SECOND 1
// Define EPOCH (1970-JANUARY-01) in the Julian Date representation
#define EPOCH_JULIAN_DATE 2440588
// Seconds per unit
#define SEC_PER_MIN ((UINTN) 60)
#define SEC_PER_HOUR ((UINTN) 3600)
#define SEC_PER_DAY ((UINTN) 86400)
#define SEC_PER_MONTH ((UINTN) 2,592,000)
#define SEC_PER_YEAR ((UINTN) 31,536,000)
#endif