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yaml
---
r: 192222
b: refs/heads/master
c: cb0e996
h: refs/heads/master
v: v3
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John Stultz authored and Thomas Gleixner committed Mar 13, 2010
1 parent bc73185 commit ac6f41a
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Showing 3 changed files with 14 additions and 40 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6ffdc5774a9ef80e58db398a8307d5b2db2644ce
refs/heads/master: cb0e996378900fa05d5c779d6bfa52d55ebc3407
13 changes: 7 additions & 6 deletions trunk/arch/blackfin/kernel/time-ts.c
Original file line number Diff line number Diff line change
Expand Up @@ -348,9 +348,15 @@ static int __init bfin_clockevent_init(void)
return 0;
}

void __init time_init(void)
void read_persistent_clock(struct timespec *ts)
{
time_t secs_since_1970 = (365 * 37 + 9) * 24 * 60 * 60; /* 1 Jan 2007 */
ts->tv_sec = secs_since_1970;
ts->tv_nsec = 0;
}

void __init time_init(void)
{

#ifdef CONFIG_RTC_DRV_BFIN
/* [#2663] hack to filter junk RTC values that would cause
Expand All @@ -363,11 +369,6 @@ void __init time_init(void)
}
#endif

/* Initialize xtime. From now on, xtime is updated with timer interrupts */
xtime.tv_sec = secs_since_1970;
xtime.tv_nsec = 0;
set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);

bfin_cs_cycles_init();
bfin_cs_gptimer0_init();
bfin_clockevent_init();
Expand Down
39 changes: 6 additions & 33 deletions trunk/arch/blackfin/kernel/time.c
Original file line number Diff line number Diff line change
Expand Up @@ -112,11 +112,6 @@ u32 arch_gettimeoffset(void)
}
#endif

static inline int set_rtc_mmss(unsigned long nowtime)
{
return 0;
}

/*
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "do_timer()" routine every clocktick
Expand All @@ -126,29 +121,8 @@ __attribute__((l1_text))
#endif
irqreturn_t timer_interrupt(int irq, void *dummy)
{
/* last time the cmos clock got updated */
static long last_rtc_update;

write_seqlock(&xtime_lock);
do_timer(1);

/*
* 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 / NSEC_PER_USEC) >=
500000 - ((unsigned)TICK_SIZE) / 2
&& (xtime.tv_nsec / NSEC_PER_USEC) <=
500000 + ((unsigned)TICK_SIZE) / 2) {
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* Do it again in 60s. */
last_rtc_update = xtime.tv_sec - 600;
}
write_sequnlock(&xtime_lock);

#ifdef CONFIG_IPIPE
Expand All @@ -161,10 +135,15 @@ irqreturn_t timer_interrupt(int irq, void *dummy)
return IRQ_HANDLED;
}

void __init time_init(void)
void read_persistent_clock(struct timespec *ts)
{
time_t secs_since_1970 = (365 * 37 + 9) * 24 * 60 * 60; /* 1 Jan 2007 */
ts->tv_sec = secs_since_1970;
ts->tv_nsec = 0;
}

void __init time_init(void)
{
#ifdef CONFIG_RTC_DRV_BFIN
/* [#2663] hack to filter junk RTC values that would cause
* userspace to have to deal with time values greater than
Expand All @@ -176,11 +155,5 @@ void __init time_init(void)
}
#endif

/* Initialize xtime. From now on, xtime is updated with timer interrupts */
xtime.tv_sec = secs_since_1970;
xtime.tv_nsec = 0;

wall_to_monotonic.tv_sec = -xtime.tv_sec;

time_sched_init(timer_interrupt);
}

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