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>
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@ -22,7 +22,6 @@
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#include <linux/timex.h>
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#include <asm/machdep.h>
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#include <asm/io.h>
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#include <asm/irq_regs.h>
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#define TICK_SIZE (tick_nsec / 1000)
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@ -66,29 +65,6 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy)
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else
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last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
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}
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#ifdef CONFIG_HEARTBEAT
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/* use power LED as a heartbeat instead -- much more useful
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for debugging -- based on the version for PReP by Cort */
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/* acts like an actual heart beat -- ie thump-thump-pause... */
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if (mach_heartbeat) {
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static unsigned cnt = 0, period = 0, dist = 0;
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if (cnt == 0 || cnt == dist)
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mach_heartbeat( 1 );
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else if (cnt == 7 || cnt == dist+7)
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mach_heartbeat( 0 );
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if (++cnt > period) {
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cnt = 0;
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/* The hyperbolic function below modifies the heartbeat period
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* length in dependency of the current (5min) load. It goes
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* through the points f(0)=126, f(1)=86, f(5)=51,
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* f(inf)->30. */
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period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
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dist = period / 4;
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}
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}
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#endif /* CONFIG_HEARTBEAT */
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write_sequnlock(&xtime_lock);
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return(IRQ_HANDLED);
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