diff options
Diffstat (limited to 'arch/arm/mach-sa1100/time.c')
-rw-r--r-- | arch/arm/mach-sa1100/time.c | 72 |
1 files changed, 32 insertions, 40 deletions
diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c index 80702c9ecc7..a59a13a665a 100644 --- a/arch/arm/mach-sa1100/time.c +++ b/arch/arm/mach-sa1100/time.c @@ -69,46 +69,10 @@ sa1100_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *c) } } -static struct clock_event_device ckevt_sa1100_osmr0 = { - .name = "osmr0", - .features = CLOCK_EVT_FEAT_ONESHOT, - .rating = 200, - .set_next_event = sa1100_osmr0_set_next_event, - .set_mode = sa1100_osmr0_set_mode, -}; - -static struct irqaction sa1100_timer_irq = { - .name = "ost0", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = sa1100_ost0_interrupt, - .dev_id = &ckevt_sa1100_osmr0, -}; - -static void __init sa1100_timer_init(void) -{ - writel_relaxed(0, OIER); - writel_relaxed(OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3, OSSR); - - setup_sched_clock(sa1100_read_sched_clock, 32, 3686400); - - clockevents_calc_mult_shift(&ckevt_sa1100_osmr0, 3686400, 4); - ckevt_sa1100_osmr0.max_delta_ns = - clockevent_delta2ns(0x7fffffff, &ckevt_sa1100_osmr0); - ckevt_sa1100_osmr0.min_delta_ns = - clockevent_delta2ns(MIN_OSCR_DELTA * 2, &ckevt_sa1100_osmr0) + 1; - ckevt_sa1100_osmr0.cpumask = cpumask_of(0); - - setup_irq(IRQ_OST0, &sa1100_timer_irq); - - clocksource_mmio_init(OSCR, "oscr", CLOCK_TICK_RATE, 200, 32, - clocksource_mmio_readl_up); - clockevents_register_device(&ckevt_sa1100_osmr0); -} - #ifdef CONFIG_PM unsigned long osmr[4], oier; -static void sa1100_timer_suspend(void) +static void sa1100_timer_suspend(struct clock_event_device *cedev) { osmr[0] = readl_relaxed(OSMR0); osmr[1] = readl_relaxed(OSMR1); @@ -117,7 +81,7 @@ static void sa1100_timer_suspend(void) oier = readl_relaxed(OIER); } -static void sa1100_timer_resume(void) +static void sa1100_timer_resume(struct clock_event_device *cedev) { writel_relaxed(0x0f, OSSR); writel_relaxed(osmr[0], OSMR0); @@ -136,8 +100,36 @@ static void sa1100_timer_resume(void) #define sa1100_timer_resume NULL #endif -struct sys_timer sa1100_timer = { - .init = sa1100_timer_init, +static struct clock_event_device ckevt_sa1100_osmr0 = { + .name = "osmr0", + .features = CLOCK_EVT_FEAT_ONESHOT, + .rating = 200, + .set_next_event = sa1100_osmr0_set_next_event, + .set_mode = sa1100_osmr0_set_mode, .suspend = sa1100_timer_suspend, .resume = sa1100_timer_resume, }; + +static struct irqaction sa1100_timer_irq = { + .name = "ost0", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .handler = sa1100_ost0_interrupt, + .dev_id = &ckevt_sa1100_osmr0, +}; + +void __init sa1100_timer_init(void) +{ + writel_relaxed(0, OIER); + writel_relaxed(OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3, OSSR); + + setup_sched_clock(sa1100_read_sched_clock, 32, 3686400); + + ckevt_sa1100_osmr0.cpumask = cpumask_of(0); + + setup_irq(IRQ_OST0, &sa1100_timer_irq); + + clocksource_mmio_init(OSCR, "oscr", CLOCK_TICK_RATE, 200, 32, + clocksource_mmio_readl_up); + clockevents_config_and_register(&ckevt_sa1100_osmr0, 3686400, + MIN_OSCR_DELTA * 2, 0x7fffffff); +} |