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| author | Sebastian Siewior <bigeasy@linutronix.de> | 2008-04-28 11:43:01 +0200 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2008-07-23 15:11:28 +1000 |
| commit | 95469bd64a7a9ab405b566deb8c81d4aaf67ed9e (patch) | |
| tree | 737b6971940e46bba0467e9808f6b101ce3cdb37 /arch/m68knommu | |
| parent | 0df185f5a1430ab8b437be402d286ee0728ef9f8 (diff) | |
| download | linux-95469bd64a7a9ab405b566deb8c81d4aaf67ed9e.tar.gz linux-95469bd64a7a9ab405b566deb8c81d4aaf67ed9e.tar.bz2 linux-95469bd64a7a9ab405b566deb8c81d4aaf67ed9e.zip | |
m68knommu: complete generic time
do_set_rtc() isn't required because the work that is handled is
allready served if read_persistent_clock() & update_persistent_clock()
are implemented and CONFIG_GENERIC_CMOS_UPDATE is. sync_cmos_clock()
looks very familiar :)
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68knommu')
| -rw-r--r-- | arch/m68knommu/Kconfig | 4 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/time.c | 38 |
2 files changed, 14 insertions, 28 deletions
diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig index 8e8441587c22..bfd35304d586 100644 --- a/arch/m68knommu/Kconfig +++ b/arch/m68knommu/Kconfig @@ -58,6 +58,10 @@ config GENERIC_TIME bool default y +config GENERIC_CMOS_UPDATE + bool + default y + config TIME_LOW_RES bool default y diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c index d33ed9a84cc7..67944aa27280 100644 --- a/arch/m68knommu/kernel/time.c +++ b/arch/m68knommu/kernel/time.c @@ -33,27 +33,6 @@ static inline int set_rtc_mmss(unsigned long nowtime) return -1; } -static inline void do_set_rtc(void) -{ - /* last time the cmos clock got updated */ - static long last_rtc_update=0; - - /* - * If we have an externally synchronized Linux clock, then update - * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be - * called as close as possible to 500 ms before the new second starts. - */ - if (ntp_synced() && - xtime.tv_sec > last_rtc_update + 660 && - (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && - (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { - if (set_rtc_mmss(xtime.tv_sec) == 0) - last_rtc_update = xtime.tv_sec; - else - last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */ - } -} - /* * timer_interrupt() needs to keep up the real-time clock, * as well as call the "do_timer()" routine every clocktick @@ -68,8 +47,6 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy) do_timer(1); - do_set_rtc(); - write_sequnlock(&xtime_lock); #ifndef CONFIG_SMP @@ -93,12 +70,17 @@ static unsigned long read_rtc_mmss(void) return mktime(year, mon, day, hour, min, sec);; } -void time_init(void) +unsigned long read_persistent_clock(void) +{ + return read_rtc_mmss(); +} + +int update_persistent_clock(struct timespec now) { - xtime.tv_sec = read_rtc_mmss(); - xtime.tv_nsec = 0; - wall_to_monotonic.tv_sec = -xtime.tv_sec; + return set_rtc_mmss(now.tv_sec); +} +void time_init(void) +{ hw_timer_init(); } - |