[linux-block.git] / arch / arm / include / asm / mc146818rtc.h

/*
 * Machine dependent access functions for RTC registers.
 */
#ifndef _ASM_MC146818RTC_H
#define _ASM_MC146818RTC_H

#include <linux/io.h>
#include <linux/kernel.h>

#define RTC_IRQ BUILD_BUG_ON(1)

#ifndef RTC_PORT
#define RTC_PORT(x)	(0x70 + (x))
#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
#endif

/*
 * The yet supported machines all access the RTC index register via
 * an ISA port access but the way to access the date register differs ...
 */
#define CMOS_READ(addr) ({ \
outb_p((addr),RTC_PORT(0)); \
inb_p(RTC_PORT(1)); \
})
#define CMOS_WRITE(val, addr) ({ \
outb_p((addr),RTC_PORT(0)); \
outb_p((val),RTC_PORT(1)); \
})

#endif /* _ASM_MC146818RTC_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Machine dependent access functions for RTC registers.
	3	*/
	4	#ifndef _ASM_MC146818RTC_H
	5	#define _ASM_MC146818RTC_H
	6
fced80c7	7	#include <linux/io.h>
bd8abc9a RH	8	#include <linux/kernel.h>
	9
	10	#define RTC_IRQ BUILD_BUG_ON(1)
1da177e4 LT	11
	12	#ifndef RTC_PORT
	13	#define RTC_PORT(x) (0x70 + (x))
	14	#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
	15	#endif
	16
	17	/*
	18	* The yet supported machines all access the RTC index register via
	19	* an ISA port access but the way to access the date register differs ...
	20	*/
	21	#define CMOS_READ(addr) ({ \
	22	outb_p((addr),RTC_PORT(0)); \
	23	inb_p(RTC_PORT(1)); \
	24	})
	25	#define CMOS_WRITE(val, addr) ({ \
	26	outb_p((addr),RTC_PORT(0)); \
	27	outb_p((val),RTC_PORT(1)); \
	28	})
	29
	30	#endif /* _ASM_MC146818RTC_H */