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Commit d330615b authored by Hans Ulli Kroll's avatar Hans Ulli Kroll Committed by Olof Johansson
Browse files

ARM: gemini: Setup timer3 as free running timer 



In the original driver it is missed to setup a free running driver.
This timer is needed for the scheduler.
So setup it.

Signed-off-by: default avatarHans Ulli Kroll <ulli.kroll@googlemail.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent 5dc90739

arch/arm/mach-gemini/time.c

+20 −1
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
#include <asm/mach/time.h>

#include <linux/clockchips.h>

#include <linux/clocksource.h>

#include <linux/sched_clock.h>



/*

 * Register definitions for the timers
@@ -62,6 +63,11 @@ 


static unsigned int tick_rate;



static u64 notrace gemini_read_sched_clock(void)

{

	return readl(TIMER_COUNT(TIMER3_BASE));

}



static int gemini_timer_set_next_event(unsigned long cycles,

				       struct clock_event_device *evt)

{
@@ -205,6 +211,19 @@ void __init gemini_timer_init(void) 
	writel(0, TIMER_INTR_STATE);

	writel(TIMER_DEFAULT_FLAGS, TIMER_CR);



	/*

	 * Setup free-running clocksource timer (interrupts

	 * disabled.)

	 */

	writel(0, TIMER_COUNT(TIMER3_BASE));

	writel(0, TIMER_LOAD(TIMER3_BASE));

	writel(0, TIMER_MATCH1(TIMER3_BASE));

	writel(0, TIMER_MATCH2(TIMER3_BASE));

	clocksource_mmio_init(TIMER_COUNT(TIMER3_BASE),

			      "gemini_clocksource", tick_rate,

			      300, 32, clocksource_mmio_readl_up);

	sched_clock_register(gemini_read_sched_clock, 32, tick_rate);



	/*

	 * Setup clockevent timer (interrupt-driven.)

	*/