53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* ds1742rtc.h - register definitions for the Real-Time-Clock / CMOS RAM
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*
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* Copyright (C) 1999-2001 Toshiba Corporation
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* Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org)
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*
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* Permission is hereby granted to copy, modify and redistribute this code
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* in terms of the GNU Library General Public License, Version 2 or later,
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* at your option.
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*/
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#ifndef __LINUX_DS1742RTC_H
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#define __LINUX_DS1742RTC_H
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#include <asm/ds1742.h>
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#define RTC_BRAM_SIZE 0x800
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#define RTC_OFFSET 0x7f8
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/*
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* Register summary
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*/
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#define RTC_CONTROL (RTC_OFFSET + 0)
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#define RTC_CENTURY (RTC_OFFSET + 0)
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#define RTC_SECONDS (RTC_OFFSET + 1)
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#define RTC_MINUTES (RTC_OFFSET + 2)
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#define RTC_HOURS (RTC_OFFSET + 3)
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#define RTC_DAY (RTC_OFFSET + 4)
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#define RTC_DATE (RTC_OFFSET + 5)
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#define RTC_MONTH (RTC_OFFSET + 6)
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#define RTC_YEAR (RTC_OFFSET + 7)
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#define RTC_CENTURY_MASK 0x3f
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#define RTC_SECONDS_MASK 0x7f
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#define RTC_DAY_MASK 0x07
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/*
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* Bits in the Control/Century register
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*/
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#define RTC_WRITE 0x80
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#define RTC_READ 0x40
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/*
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* Bits in the Seconds register
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*/
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#define RTC_STOP 0x80
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/*
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* Bits in the Day register
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*/
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#define RTC_BATT_FLAG 0x80
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#define RTC_FREQ_TEST 0x40
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#endif /* __LINUX_DS1742RTC_H */
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