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[MIPS] Use generic NTP code for all MIPS platforms

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2007-08-13 15:26:12 +01:00
parent 4680576ede
commit f5ff0a2802
3 changed files with 8 additions and 38 deletions
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24
arch/mips/kernel/time.c
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@@ -67,6 +67,10 @@ unsigned long (*rtc_mips_get_time)(void) = null_rtc_get_time;
int (*rtc_mips_set_time)(unsigned long) = null_rtc_set_time;
int (*rtc_mips_set_mmss)(unsigned long);
int update_persistent_clock(struct timespec now)
{
return rtc_mips_set_mmss(now.tv_sec);
}
/* how many counter cycles in a jiffy */
static unsigned long cycles_per_jiffy __read_mostly;
@@ -125,9 +129,6 @@ static void __init c0_hpt_timer_init(void)
int (*mips_timer_state)(void);
void (*mips_timer_ack)(void);
/* last time when xtime and rtc are sync'ed up */
static long last_rtc_update;
/*
* local_timer_interrupt() does profiling and process accounting
* on a per-CPU basis.
@@ -159,23 +160,6 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
*/
do_timer(1);
/*
* If we have an externally synchronized Linux clock, then update
* CMOS clock accordingly every ~11 minutes. rtc_mips_set_time() 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 (rtc_mips_set_mmss(xtime.tv_sec) == 0) {
last_rtc_update = xtime.tv_sec;
} else {
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
}
}
write_sequnlock(&xtime_lock);
/*