[uClinux-dev] [RFC 04/11] m68knommu: complete generic time

[Sebastian Siewior]

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 <[EMAIL PROTECTED]> 
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -57,6 +57,10 @@ config GENERIC_TIME
        bool
        default y
 
+config GENERIC_CMOS_UPDATE
+       bool
+       default y
+
 config TIME_LOW_RES
        bool
        default y
--- a/arch/m68knommu/kernel/time.c
+++ b/arch/m68knommu/kernel/time.c
@@ -33,27 +33,6 @@ static inline int set_rtc_mmss(unsigned 
        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
@@ -70,8 +49,6 @@ irqreturn_t arch_timer_interrupt(int irq
        if (current->pid)
                profile_tick(CPU_PROFILING);
 
-       do_set_rtc();
-
        write_sequnlock(&xtime_lock);
        return(IRQ_HANDLED);
 }
@@ -91,12 +68,17 @@ 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)
 {
-       xtime.tv_sec = read_rtc_mmss();
-       xtime.tv_nsec = 0;
-       wall_to_monotonic.tv_sec = -xtime.tv_sec;
+       return read_rtc_mmss();
+}
 
-       hw_timer_init();
+int update_persistent_clock(struct timespec now)
+{
+       return set_rtc_mmss(now.tv_sec);
 }
 
+void time_init(void)
+{
+       hw_timer_init();
+}

-- 

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