37 lines
732 B
C
37 lines
732 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
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*/
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#ifndef _ASM_M48T37_H
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#define _ASM_M48T37_H
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#include <linux/spinlock.h>
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extern spinlock_t rtc_lock;
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struct m48t37_rtc {
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volatile u8 pad[0x7ff0]; /* NVRAM */
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volatile u8 flags;
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volatile u8 century;
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volatile u8 alarm_sec;
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volatile u8 alarm_min;
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volatile u8 alarm_hour;
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volatile u8 alarm_data;
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volatile u8 interrupts;
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volatile u8 watchdog;
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volatile u8 control;
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volatile u8 sec;
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volatile u8 min;
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volatile u8 hour;
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volatile u8 day;
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volatile u8 date;
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volatile u8 month;
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volatile u8 year;
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};
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#define M48T37_RTC_SET 0x80
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#define M48T37_RTC_STOPPED 0x80
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#define M48T37_RTC_READ 0x40
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#endif /* _ASM_M48T37_H */
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