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m68knommu: remove dead code from m68knommu timer code 

Remove unused LED heartbeat code from m68knommu timer code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Ungerer 2008-02-01 17:38:20 +10:00 committed by Linus Torvalds
parent 7c74806bc9
commit c9f27c3619
1 changed files with 0 additions and 24 deletions
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24
arch/m68knommu/kernel/time.c
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@ -22,7 +22,6 @@
#include <linux/timex.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/irq_regs.h>
#define TICK_SIZE (tick_nsec / 1000)
@ -66,29 +65,6 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy)
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);