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/* include/asm-m68k/rtc.h
* Copyright Richard Zidlicky
* implementation details for genrtc/q40rtc driver
/* permission is hereby granted to copy, modify and redistribute this code
* in terms of the GNU Library General Public License, Version 2 or later,
* at your option.
#ifndef _ASM_RTC_H
#define _ASM_RTC_H
#ifdef __KERNEL__
#include <linux/rtc.h>
#include <asm/errno.h>
#include <asm/machdep.h>
#define RTC_PIE 0x40 /* periodic interrupt enable */
#define RTC_AIE 0x20 /* alarm interrupt enable */
#define RTC_UIE 0x10 /* update-finished interrupt enable */
/* some dummy definitions */
#define RTC_BATT_BAD 0x100 /* battery bad */
#define RTC_SQWE 0x08 /* enable square-wave output */
#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */
#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */
#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */
static inline unsigned int get_rtc_time(struct rtc_time *time)
* Only the values that we read from the RTC are set. We leave
* tm_wday, tm_yday and tm_isdst untouched. Even though the
* RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
* by the RTC when initially set to a non-zero value.
mach_hwclk(0, time);
return RTC_24H;
static inline int set_rtc_time(struct rtc_time *time)
return mach_hwclk(1, time);
static inline unsigned int get_rtc_ss(void)
if (mach_get_ss)
return mach_get_ss();
struct rtc_time h;
return h.tm_sec;
static inline int get_rtc_pll(struct rtc_pll_info *pll)
if (mach_get_rtc_pll)
return mach_get_rtc_pll(pll);
return -EINVAL;
static inline int set_rtc_pll(struct rtc_pll_info *pll)
if (mach_set_rtc_pll)
return mach_set_rtc_pll(pll);
return -EINVAL;
#endif /* __KERNEL__ */
#endif /* _ASM__RTC_H */