ARM: OMAP: TimerMPU: Remove MPU-timer based sched_clock() (dd89dd98) · Commits · 戴 / test

Remove MPU-timer based sched_clock() in favor of the common one based on 32k sync timer which works across all OMAP1/2/3 platforms. Using 32k based one also gives a valid sched_clock() very early in the boot process. Signed-off-by:

Kevin Hilman <khilman@mvista.com> Signed-off-by:

Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/time.c

+0 −16

Original line number	Diff line number	Diff line
		@@ -227,22 +227,6 @@ static void __init omap_init_clocksource(unsigned long rate)
		printk(err, clocksource_mpu.name);
		}


		/*
		* Scheduler clock - returns current time in nanosec units.
		*/
		unsigned long long sched_clock(void)
		{
		unsigned long ticks = 0 - omap_mpu_timer_read(1);
		unsigned long long ticks64;

		ticks64 = omap_mpu_timer2_overflows;
		ticks64 <<= 32;
		ticks64 \|= ticks;

		return cycles_2_ns(ticks64);
		}

		/*
		* ---------------------------------------------------------------------------
		* Timer initialization

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