1/*
 2 *  Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
 3 */
 4#ifndef _ASM_M48T37_H
 5#define _ASM_M48T37_H
 6
 7#include <linux/spinlock.h>
 8
 9extern spinlock_t rtc_lock;
10
11struct m48t37_rtc {
12	volatile u8	pad[0x7ff0];    /* NVRAM */
13	volatile u8	flags;
14	volatile u8	century;
15	volatile u8	alarm_sec;
16	volatile u8	alarm_min;
17	volatile u8	alarm_hour;
18	volatile u8	alarm_data;
19	volatile u8	interrupts;
20	volatile u8	watchdog;
21	volatile u8	control;
22	volatile u8	sec;
23	volatile u8	min;
24	volatile u8	hour;
25	volatile u8	day;
26	volatile u8	date;
27	volatile u8	month;
28	volatile u8	year;
29};
30
31#define M48T37_RTC_SET		0x80
32#define M48T37_RTC_STOPPED	0x80
33#define M48T37_RTC_READ		0x40
34
35#endif /* _ASM_M48T37_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *  Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
 4 */
 5#ifndef _ASM_M48T37_H
 6#define _ASM_M48T37_H
 7
 8#include <linux/spinlock.h>
 9
10extern spinlock_t rtc_lock;
11
12struct m48t37_rtc {
13	volatile u8	pad[0x7ff0];	/* NVRAM */
14	volatile u8	flags;
15	volatile u8	century;
16	volatile u8	alarm_sec;
17	volatile u8	alarm_min;
18	volatile u8	alarm_hour;
19	volatile u8	alarm_data;
20	volatile u8	interrupts;
21	volatile u8	watchdog;
22	volatile u8	control;
23	volatile u8	sec;
24	volatile u8	min;
25	volatile u8	hour;
26	volatile u8	day;
27	volatile u8	date;
28	volatile u8	month;
29	volatile u8	year;
30};
31
32#define M48T37_RTC_SET		0x80
33#define M48T37_RTC_STOPPED	0x80
34#define M48T37_RTC_READ		0x40
35
36#endif /* _ASM_M48T37_H */