ArmPlatformPkg/Include/Drivers/PL031RealTimeClock.h

   1 /** @file
   2 *
   3 *  Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.
   4 *
   5 *  This program and the accompanying materials
   6 *  are licensed and made available under the terms and conditions of the BSD License
   7 *  which accompanies this distribution.  The full text of the license may be found at
   8 *  http://opensource.org/licenses/bsd-license.php
   9 *
  10 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 *
  13 **/
  14
  15
  16 #ifndef __PL031_REAL_TIME_CLOCK_H__
  17 #define __PL031_REAL_TIME_CLOCK_H__
  18
  19 // PL031 Registers
  20 #define PL031_RTC_DR_DATA_REGISTER                      0x000
  21 #define PL031_RTC_MR_MATCH_REGISTER                     0x004
  22 #define PL031_RTC_LR_LOAD_REGISTER                      0x008
  23 #define PL031_RTC_CR_CONTROL_REGISTER                   0x00C
  24 #define PL031_RTC_IMSC_IRQ_MASK_SET_CLEAR_REGISTER      0x010
  25 #define PL031_RTC_RIS_RAW_IRQ_STATUS_REGISTER           0x014
  26 #define PL031_RTC_MIS_MASKED_IRQ_STATUS_REGISTER        0x018
  27 #define PL031_RTC_ICR_IRQ_CLEAR_REGISTER                0x01C
  28 #define PL031_RTC_PERIPH_ID0                            0xFE0
  29 #define PL031_RTC_PERIPH_ID1                            0xFE4
  30 #define PL031_RTC_PERIPH_ID2                            0xFE8
  31 #define PL031_RTC_PERIPH_ID3                            0xFEC
  32 #define PL031_RTC_PCELL_ID0                             0xFF0
  33 #define PL031_RTC_PCELL_ID1                             0xFF4
  34 #define PL031_RTC_PCELL_ID2                             0xFF8
  35 #define PL031_RTC_PCELL_ID3                             0xFFC
  36
  37 // PL031 Values
  38 #define PL031_RTC_ENABLED                               0x00000001
  39 #define PL031_SET_IRQ_MASK                              0x00000001
  40 #define PL031_IRQ_TRIGGERED                             0x00000001
  41 #define PL031_CLEAR_IRQ                                 0x00000001
  42
  43 #define PL031_COUNTS_PER_SECOND                         1
  44
  45 // Define EPOCH (1970-JANUARY-01) in the Julian Date representation
  46 #define EPOCH_JULIAN_DATE                               2440588
  47
  48 // Seconds per unit
  49 #define SEC_PER_MIN                                     ((UINTN)    60)
  50 #define SEC_PER_HOUR                                    ((UINTN)  3600)
  51 #define SEC_PER_DAY                                     ((UINTN) 86400)
  52
  53 #define SEC_PER_MONTH                                   ((UINTN)  2,592,000)
  54 #define SEC_PER_YEAR                                    ((UINTN) 31,536,000)
  55
  56 #endif