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1 /*
2 * Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
3 */
4 #ifndef _ASM_M48T35_H
5 #define _ASM_M48T35_H
6
7 #include <linux/spinlock.h>
8
9 extern spinlock_t rtc_lock;
10
11 struct m48t35_rtc {
12 volatile u8 pad[0x7ff8]; /* starts at 0x7ff8 */
13 volatile u8 control;
14 volatile u8 sec;
15 volatile u8 min;
16 volatile u8 hour;
17 volatile u8 day;
18 volatile u8 date;
19 volatile u8 month;
20 volatile u8 year;
21 };
22
23 #define M48T35_RTC_SET 0x80
24 #define M48T35_RTC_STOPPED 0x80
25 #define M48T35_RTC_READ 0x40
26
27 #endif /* _ASM_M48T35_H */