Commit c9f27c36 authored by Greg Ungerer's avatar Greg Ungerer Committed by Linus Torvalds
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m68knommu: remove dead code from m68knommu timer code 



Remove unused LED heartbeat code from m68knommu timer code.

Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7c74806b

arch/m68knommu/kernel/time.c

+0 −24
Original line number Diff line number Diff line
@@ -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);