void __init time_init_deferred(void)
{
struct resource *resource = NULL;
struct clock_event_device *ce_dev = &hexagon_clockevent_dev;
struct device_node *dn;
struct resource r;
int err;
ce_dev->cpumask = cpu_all_mask;
if (!resource)
resource = rtos_timer_device.resource;
rtos_timer = ioremap(resource->start, resource->end
- resource->start + 1);
if (!rtos_timer) {
release_mem_region(resource->start, resource->end
- resource->start + 1);
}
clocksource_register_khz(&hexagon_clocksource, pcycle_freq_mhz * 1000);
clockevents_calc_mult_shift(ce_dev, sleep_clk_freq, 4);
ce_dev->max_delta_ns = clockevent_delta2ns(0x7fffffff, ce_dev);
ce_dev->min_delta_ns = clockevent_delta2ns(0xf, ce_dev);
#ifdef CONFIG_SMP
setup_percpu_clockdev();
#endif
clockevents_register_device(ce_dev);
setup_irq(ce_dev->irq, &rtos_timer_intdesc);
}
/*
* time_init_deferred - called by start_kernel to set up timer/clock source
*
* Install the IRQ handler for the clock, setup timers.
* This is done late, as that way, we can use ioremap().
*
* This runs just before the delay loop is calibrated, and
* is used for delay calibration.
*/
void __init time_init_deferred(void)
{
struct resource *resource = NULL;
struct clock_event_device *ce_dev = &hexagon_clockevent_dev;
ce_dev->cpumask = cpu_all_mask;
if (!resource)
resource = rtos_timer_device.resource;
/* ioremap here means this has to run later, after paging init */
rtos_timer = ioremap(resource->start, resource_size(resource));
if (!rtos_timer) {
release_mem_region(resource->start, resource_size(resource));
}
clocksource_register_khz(&hexagon_clocksource, pcycle_freq_mhz * 1000);
/* Note: the sim generic RTOS clock is apparently really 18750Hz */
/*
* Last arg is some guaranteed seconds for which the conversion will
* work without overflow.
*/
clockevents_calc_mult_shift(ce_dev, sleep_clk_freq, 4);
ce_dev->max_delta_ns = clockevent_delta2ns(0x7fffffff, ce_dev);
ce_dev->min_delta_ns = clockevent_delta2ns(0xf, ce_dev);
#ifdef CONFIG_SMP
setup_percpu_clockdev();
#endif
clockevents_register_device(ce_dev);
setup_irq(ce_dev->irq, &rtos_timer_intdesc);
}
