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authorjohn stultz <johnstul@us.ibm.com>2007-05-06 14:50:34 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 12:12:58 -0700
commitaeecf3142d82414d511135cc85f86caddfb58338 (patch)
tree46b10252750729120ec15f03aaad773f7da80258
parenta5f6abd4f7558fea97bc4021fd0eb7dcc5d16a77 (diff)
Convert h8/300 to generic timekeeping
Currently h8/300 does not implement sub-jiffy timekeeping, so there is no benefit to having arch specific timekeeping code. This patch simply removes those functions and enables the generic timekeeping code. Signed-off-by: John Stultz <johnstul@us.ibm.com> Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/h8300/Kconfig4
-rw-r--r--arch/h8300/kernel/time.c52
2 files changed, 4 insertions, 52 deletions
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 1734d96422c6..86f6ca36363f 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -53,6 +53,10 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
+config GENERIC_TIME
+ bool
+ default y
+
config TIME_LOW_RES
bool
default y
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index d1ef615ba895..91d3b56ddc68 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -66,55 +66,3 @@ void time_init(void)
platform_timer_setup(timer_interrupt);
}
-
-/*
- * This version of gettimeofday has near microsecond resolution.
- */
-void do_gettimeofday(struct timeval *tv)
-{
- unsigned long flags;
- unsigned long usec, sec;
-
- read_lock_irqsave(&xtime_lock, flags);
- usec = 0;
- sec = xtime.tv_sec;
- usec += (xtime.tv_nsec / 1000);
- read_unlock_irqrestore(&xtime_lock, flags);
-
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_lock_irq(&xtime_lock);
- /* This is revolting. We need to set the xtime.tv_usec
- * correctly. However, the value in this location is
- * is value at the last tick.
- * Discover what correction gettimeofday
- * would have done, and then undo it!
- */
- while (tv->tv_nsec < 0) {
- tv->tv_nsec += NSEC_PER_SEC;
- tv->tv_sec--;
- }
-
- xtime.tv_sec = tv->tv_sec;
- xtime.tv_nsec = tv->tv_nsec;
- ntp_clear();
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
- return 0;
-}
-
-EXPORT_SYMBOL(do_settimeofday);

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