#include <mach/time.h>
/*
+ * Minimum clocksource/clockevent timer range in seconds
+ */
+#define IOP_MIN_RANGE 4
+
+/*
* IOP clocksource (free-running timer 1).
*/
static cycle_t iop_clocksource_read(struct clocksource *unused)
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-static void __init iop_clocksource_set_hz(struct clocksource *cs, unsigned int hz)
-{
- u64 temp;
- u32 shift;
-
- /* Find shift and mult values for hz. */
- shift = 32;
- do {
- temp = (u64) NSEC_PER_SEC << shift;
- do_div(temp, hz);
- if ((temp >> 32) == 0)
- break;
- } while (--shift != 0);
-
- cs->shift = shift;
- cs->mult = (u32) temp;
-
- printk(KERN_INFO "clocksource: %s uses shift %u mult %#x\n",
- cs->name, cs->shift, cs->mult);
-}
-
/*
* IOP sched_clock() implementation via its clocksource.
*/
.set_mode = iop_set_mode,
};
-static void __init iop_clockevent_set_hz(struct clock_event_device *ce, unsigned int hz)
-{
- u64 temp;
- u32 shift;
-
- /* Find shift and mult values for hz. */
- shift = 32;
- do {
- temp = (u64) hz << shift;
- do_div(temp, NSEC_PER_SEC);
- if ((temp >> 32) == 0)
- break;
- } while (--shift != 0);
-
- ce->shift = shift;
- ce->mult = (u32) temp;
-
- printk(KERN_INFO "clockevent: %s uses shift %u mult %#lx\n",
- ce->name, ce->shift, ce->mult);
-}
-
static irqreturn_t
iop_timer_interrupt(int irq, void *dev_id)
{
*/
write_tmr0(timer_ctl & ~IOP_TMR_EN);
setup_irq(IRQ_IOP_TIMER0, &iop_timer_irq);
- iop_clockevent_set_hz(&iop_clockevent, tick_rate);
+ clockevents_calc_mult_shift(&iop_clockevent,
+ tick_rate, IOP_MIN_RANGE);
iop_clockevent.max_delta_ns =
clockevent_delta2ns(0xfffffffe, &iop_clockevent);
iop_clockevent.min_delta_ns =
write_trr1(0xffffffff);
write_tcr1(0xffffffff);
write_tmr1(timer_ctl);
- iop_clocksource_set_hz(&iop_clocksource, tick_rate);
+ clocksource_calc_mult_shift(&iop_clocksource, tick_rate,
+ IOP_MIN_RANGE);
clocksource_register(&iop_clocksource);
}