Merge tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[karo-tx-linux.git] / arch / arm / mach-sa1100 / time.c

diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c
index 4852c08cb526b23c2f55e6e253fc90cc7f932884..1dea6cfafb3101710053b51ef9665e0814ac143a 100644 (file)
--- a/arch/arm/mach-sa1100/time.c
+++ b/arch/arm/mach-sa1100/time.c
@@ -9,6 +9,7 @@
  *
  */
 #include <linux/init.h>
+#include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -20,6 +21,9 @@
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 
+#define SA1100_CLOCK_FREQ 3686400
+#define SA1100_LATCH DIV_ROUND_CLOSEST(SA1100_CLOCK_FREQ, HZ)
+
 static u64 notrace sa1100_read_sched_clock(void)
 {
        return readl_relaxed(OSCR);
@@ -93,7 +97,7 @@ static void sa1100_timer_resume(struct clock_event_device *cedev)
        /*
         * OSMR0 is the system timer: make sure OSCR is sufficiently behind
         */
-       writel_relaxed(OSMR0 - LATCH, OSCR);
+       writel_relaxed(OSMR0 - SA1100_LATCH, OSCR);
 }
 #else
 #define sa1100_timer_suspend NULL
@@ -128,7 +132,7 @@ void __init sa1100_timer_init(void)
 
        setup_irq(IRQ_OST0, &sa1100_timer_irq);
 
-       clocksource_mmio_init(OSCR, "oscr", CLOCK_TICK_RATE, 200, 32,
+       clocksource_mmio_init(OSCR, "oscr", SA1100_CLOCK_FREQ, 200, 32,
                clocksource_mmio_readl_up);
        clockevents_config_and_register(&ckevt_sa1100_osmr0, 3686400,
                                        MIN_OSCR_DELTA * 2, 0x7fffffff);