1 files changed, 11 insertions, 33 deletions

diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c
index 82801dbf057..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,
@@ -100,28 +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,
 };
 
-cycle_t netx_get_cycles(struct clocksource *cs)
-{
-	return readl(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE));
-}
-
-static struct clocksource clocksource_netx = {
-	.name		= "netx_timer",
-	.rating		= 200,
-	.read		= netx_get_cycles,
-	.mask		= CLOCKSOURCE_MASK(32),
-	.shift		= 20,
-	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
 /*
  * 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));
@@ -129,7 +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);
@@ -151,22 +139,12 @@ static void __init netx_timer_init(void)
 	writel(NETX_GPIO_COUNTER_CTRL_RUN,
 			NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKSOURCE));
 
-	clocksource_netx.mult =
-		clocksource_hz2mult(CLOCK_TICK_RATE, clocksource_netx.shift);
-	clocksource_register(&clocksource_netx);
+	clocksource_mmio_init(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE),
+		"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,
-};