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

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
......@@ -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)
{
......@@ -206,8 +212,21 @@ void __init gemini_timer_init(void)
writel(TIMER_DEFAULT_FLAGS, TIMER_CR);
/*
* Setup clockevent timer (interrupt-driven.)
* 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.)
*/
writel(0, TIMER_COUNT(TIMER1_BASE));
writel(0, TIMER_LOAD(TIMER1_BASE));
writel(0, TIMER_MATCH1(TIMER1_BASE));
......
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