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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 17:10:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 17:10:06 -0700
commit7d02093e29de9efc4a72d5e93baae9506969b789 (patch)
treea6fc2450132ae419934f6eb9d223baa338b7d782 /arch/cris/arch-v10
parent6e0b7b2c39b91b467270dd0bc383914f99e1fb28 (diff)
parente9ddbc075d95b2edf111247cdde16f33c31654a8 (diff)
Merge branch 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: avr32: Fix typo in read_persistent_clock() sparc: Convert sparc to use read/update_persistent_clock cris: Convert cris to use read/update_persistent_clock m68k: Convert m68k to use read/update_persistent_clock m32r: Convert m32r to use read/update_peristent_clock blackfin: Convert blackfin to use read/update_persistent_clock ia64: Convert ia64 to use read/update_persistent_clock avr32: Convert avr32 to use read/update_persistent_clock h8300: Convert h8300 to use read/update_persistent_clock frv: Convert frv to use read/update_persistent_clock mn10300: Convert mn10300 to use read/update_persistent_clock alpha: Convert alpha to use read/update_persistent_clock xtensa: Fix unnecessary setting of xtime time: Clean up direct xtime usage in xen
Diffstat (limited to 'arch/cris/arch-v10')
-rw-r--r--arch/cris/arch-v10/kernel/time.c37
1 files changed, 2 insertions, 35 deletions
diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c
index 31ca1418d5a..30adae594ae 100644
--- a/arch/cris/arch-v10/kernel/time.c
+++ b/arch/cris/arch-v10/kernel/time.c
@@ -26,7 +26,6 @@
/* it will make jiffies at 96 hz instead of 100 hz though */
#undef USE_CASCADE_TIMERS
-extern void update_xtime_from_cmos(void);
extern int set_rtc_mmss(unsigned long nowtime);
extern int have_rtc;
@@ -188,8 +187,6 @@ stop_watchdog(void)
#endif
}
-/* last time the cmos clock got updated */
-static long last_rtc_update = 0;
/*
* timer_interrupt() needs to keep up the real-time clock,
@@ -232,24 +229,6 @@ timer_interrupt(int irq, void *dev_id)
do_timer(1);
cris_do_profile(regs); /* Save profiling information */
-
- /*
- * 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.
- *
- * The division here is not time critical since it will run once in
- * 11 minutes
- */
- if (ntp_synced() &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - (tick_nsec / 1000) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + (tick_nsec / 1000) / 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 */
- }
return IRQ_HANDLED;
}
@@ -274,22 +253,10 @@ time_init(void)
*/
loops_per_usec = 50;
- if(RTC_INIT() < 0) {
- /* no RTC, start at 1980 */
- xtime.tv_sec = 0;
- xtime.tv_nsec = 0;
+ if(RTC_INIT() < 0)
have_rtc = 0;
- } else {
- /* get the current time */
+ else
have_rtc = 1;
- update_xtime_from_cmos();
- }
-
- /*
- * Initialize wall_to_monotonic such that adding it to xtime will yield zero, the
- * tv_nsec field must be normalized (i.e., 0 <= nsec < NSEC_PER_SEC).
- */
- set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
/* Setup the etrax timers
* Base frequency is 25000 hz, divider 250 -> 100 HZ