Home | History | Annotate | Download | only in Drivers
      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
     57