diff options
Diffstat (limited to 'arch/arm/mach-netx/time.c')
| -rw-r--r-- | arch/arm/mach-netx/time.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c index e24c141ba48..5fb2a590ec1 100644 --- a/arch/arm/mach-netx/time.c +++ b/arch/arm/mach-netx/time.c @@ -28,6 +28,9 @@ #include <asm/mach/time.h> #include <mach/netx-regs.h> +#define NETX_CLOCK_FREQ 100000000 +#define NETX_LATCH DIV_ROUND_CLOSEST(NETX_CLOCK_FREQ, HZ) + #define TIMER_CLOCKEVENT 0 #define TIMER_CLOCKSOURCE 1 @@ -41,7 +44,7 @@ static void netx_set_mode(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - writel(LATCH, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKEVENT)); + writel(NETX_LATCH, NETX_GPIO_COUNTER_MAX(TIMER_CLOCKEVENT)); tmode = NETX_GPIO_COUNTER_CTRL_RST_EN | NETX_GPIO_COUNTER_CTRL_IRQ_EN | NETX_GPIO_COUNTER_CTRL_RUN; @@ -76,7 +79,6 @@ static int netx_set_next_event(unsigned long evt, static struct clock_event_device netx_clockevent = { .name = "netx-timer" __stringify(TIMER_CLOCKEVENT), - .shift = 32, .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .set_next_event = netx_set_next_event, .set_mode = netx_set_mode, @@ -100,14 +102,14 @@ netx_timer_interrupt(int irq, void *dev_id) static struct irqaction netx_timer_irq = { .name = "NetX Timer Tick", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .flags = IRQF_TIMER | IRQF_IRQPOLL, .handler = netx_timer_interrupt, }; /* * Set up timer interrupt */ -static void __init netx_timer_init(void) +void __init netx_timer_init(void) { /* disable timer initially */ writel(0, NETX_GPIO_COUNTER_CTRL(0)); @@ -115,7 +117,7 @@ static void __init netx_timer_init(void) /* Reset the timer value to zero */ writel(0, NETX_GPIO_COUNTER_CURRENT(0)); - writel(LATCH, NETX_GPIO_COUNTER_MAX(0)); + writel(NETX_LATCH, NETX_GPIO_COUNTER_MAX(0)); /* acknowledge interrupt */ writel(COUNTER_BIT(0), NETX_GPIO_IRQ); @@ -138,20 +140,11 @@ static void __init netx_timer_init(void) NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKSOURCE)); clocksource_mmio_init(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE), - "netx_timer", CLOCK_TICK_RATE, 200, 32, clocksource_mmio_readl_up); + "netx_timer", NETX_CLOCK_FREQ, 200, 32, clocksource_mmio_readl_up); - netx_clockevent.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, - netx_clockevent.shift); - netx_clockevent.max_delta_ns = - clockevent_delta2ns(0xfffffffe, &netx_clockevent); /* with max_delta_ns >= delta2ns(0x800) the system currently runs fine. * Adding some safety ... */ - netx_clockevent.min_delta_ns = - clockevent_delta2ns(0xa00, &netx_clockevent); netx_clockevent.cpumask = cpumask_of(0); - clockevents_register_device(&netx_clockevent); + clockevents_config_and_register(&netx_clockevent, NETX_CLOCK_FREQ, + 0xa00, 0xfffffffe); } - -struct sys_timer netx_timer = { - .init = netx_timer_init, -}; |