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File: [Development] / linux-2.4-xfs / include / asm-mips64 / m48t35.h (download)

Revision 1.1, Wed Dec 31 00:54:49 2003 UTC (13 years, 9 months ago) by cattelan
Branch: MAIN
CVS Tags: HEAD

Initial Import 2.4.24pre2

/*
 *  Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
 */
#ifndef _ASM_M48T35_H
#define _ASM_M48T35_H

#include <linux/spinlock.h>

extern spinlock_t rtc_lock;

struct m48t35_rtc {
	volatile u8	pad[0x7ff8];    /* starts at 0x7ff8 */
	volatile u8	control;
	volatile u8	sec;
	volatile u8	min;
	volatile u8	hour;
	volatile u8	day;
	volatile u8	date;
	volatile u8	month;
	volatile u8	year;
};

#define M48T35_RTC_SET		0x80
#define M48T35_RTC_STOPPED	0x80
#define M48T35_RTC_READ		0x40

#define BCD_TO_BIN(x)		((x)=((x)&15) + ((x)>>4)*10)
#define BIN_TO_BCD(x)		((x)=(((x)/10)<<4) + (x)%10)

#endif /* _ASM_M48T35_H */