X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fm68knommu%2Fkernel%2Ftime.c;h=89cdbcaeb45f00e5a1b7e44a78d4e9389853b4dc;hb=7924e4f6519dd5b349ed146fe9fe35206730be67;hp=9226264abf1ab610846d9df98afa4a9c9dfca91d;hpb=5261d661b49e0c133395c88da193457f62db439a;p=linux-2.6-omap-h63xx.git

diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c
index 9226264abf1..89cdbcaeb45 100644
--- a/arch/m68knommu/kernel/time.c
+++ b/arch/m68knommu/kernel/time.c
@@ -22,11 +22,10 @@
 #include <linux/timex.h>
 
 #include <asm/machdep.h>
-#include <asm/io.h>
+#include <asm/irq_regs.h>
 
 #define	TICK_SIZE (tick_nsec / 1000)
 
-
 static inline int set_rtc_mmss(unsigned long nowtime)
 {
 	if (mach_set_clock_mmss)
@@ -38,20 +37,16 @@ static inline int set_rtc_mmss(unsigned long nowtime)
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-static irqreturn_t timer_interrupt(int irq, void *dummy, struct pt_regs * regs)
+irqreturn_t arch_timer_interrupt(int irq, void *dummy)
 {
 	/* last time the cmos clock got updated */
 	static long last_rtc_update=0;
 
-	/* may need to kick the hardware timer */
-	if (mach_tick)
-	  mach_tick();
-
 	write_seqlock(&xtime_lock);
 
 	do_timer(1);
 #ifndef CONFIG_SMP
-	update_process_times(user_mode(regs));
+	update_process_times(user_mode(get_irq_regs()));
 #endif
 	if (current->pid)
 		profile_tick(CPU_PROFILING);
@@ -70,29 +65,6 @@ static irqreturn_t timer_interrupt(int irq, void *dummy, struct pt_regs * regs)
 	  else
 	    last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
 	}
-#ifdef CONFIG_HEARTBEAT
-	/* use power LED as a heartbeat instead -- much more useful
-	   for debugging -- based on the version for PReP by Cort */
-	/* acts like an actual heart beat -- ie thump-thump-pause... */
-	if (mach_heartbeat) {
-	    static unsigned cnt = 0, period = 0, dist = 0;
-
-	    if (cnt == 0 || cnt == dist)
-		mach_heartbeat( 1 );
-	    else if (cnt == 7 || cnt == dist+7)
-		mach_heartbeat( 0 );
-
-	    if (++cnt > period) {
-		cnt = 0;
-		/* The hyperbolic function below modifies the heartbeat period
-		 * length in dependency of the current (5min) load. It goes
-		 * through the points f(0)=126, f(1)=86, f(5)=51,
-		 * f(inf)->30. */
-		period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
-		dist = period / 4;
-	    }
-	}
-#endif /* CONFIG_HEARTBEAT */
 
 	write_sequnlock(&xtime_lock);
 	return(IRQ_HANDLED);
@@ -102,10 +74,10 @@ void time_init(void)
 {
 	unsigned int year, mon, day, hour, min, sec;
 
-	extern void arch_gettod(int *year, int *mon, int *day, int *hour,
-				int *min, int *sec);
-
-	arch_gettod(&year, &mon, &day, &hour, &min, &sec);
+	if (mach_gettod)
+		mach_gettod(&year, &mon, &day, &hour, &min, &sec);
+	else
+		year = mon = day = hour = min = sec = 0;
 
 	if ((year += 1900) < 1970)
 		year += 100;
@@ -113,73 +85,6 @@ void time_init(void)
 	xtime.tv_nsec = 0;
 	wall_to_monotonic.tv_sec = -xtime.tv_sec;
 
-	mach_sched_init(timer_interrupt);
-}
-
-/*
- * This version of gettimeofday has near microsecond resolution.
- */
-void do_gettimeofday(struct timeval *tv)
-{
-	unsigned long flags;
-	unsigned long seq;
-	unsigned long usec, sec;
-
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = mach_gettimeoffset ? mach_gettimeoffset() : 0;
-		sec = xtime.tv_sec;
-		usec += (xtime.tv_nsec / 1000);
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, 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)
-{
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
-
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	write_seqlock_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!
-	 */
-	if (mach_gettimeoffset)
-		nsec -= (mach_gettimeoffset() * 1000);
-
-	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
-	set_normalized_timespec(&xtime, sec, nsec);
-	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
-	ntp_clear();
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-	return 0;
-}
-
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
-	return (unsigned long long)jiffies * (1000000000 / HZ);
+	hw_timer_init();
 }
 
-EXPORT_SYMBOL(do_settimeofday);