void time_init(void)
{
/* install scheduling interrupt handler */
setup_irq(IRQ_CPU_TIMER0, &timer_irq);
time_divisor_init();
}
static int try_set_cm(int new_cm)
{
unsigned long flags, clkc;
if (new_cm < 0 || new_cm > 1)
return -EINVAL;
local_irq_save(flags);
__set_PSR(flags & ~PSR_ET);
frv_dma_pause_all();
clkc = __get_CLKC();
clkc &= ~CLKC_CM;
clkc |= new_cm;
__set_CLKC(clkc);
determine_clocks(0);
time_divisor_init();
#if 1 //def DEBUG
determine_clocks(1);
#endif
frv_dma_resume_all();
local_irq_restore(flags);
return 0;
}
static int try_set_cmode(int new_cmode)
{
if (new_cmode > 15)
return -EINVAL;
if (!(clock_cmodes_permitted & (1<<new_cmode)))
return -EINVAL;
/* tell all the drivers we're suspending */
pm_send_all(PM_SUSPEND, (void *)3);
/* now change cmode */
local_irq_disable();
frv_dma_pause_all();
frv_change_cmode(new_cmode);
determine_clocks(0);
time_divisor_init();
#ifdef DEBUG
determine_clocks(1);
#endif
frv_dma_resume_all();
local_irq_enable();
/* tell all the drivers we're resuming */
pm_send_all(PM_RESUME, (void *)0);
return 0;
}
void time_init(void)
{
unsigned int year, mon, day, hour, min, sec;
extern void arch_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec);
/* FIX by dqg : Set to zero for platforms that don't have tod */
/* without this time is undefined and can overflow time_t, causing */
/* very strange errors */
year = 1980;
mon = day = 1;
hour = min = sec = 0;
arch_gettod (&year, &mon, &day, &hour, &min, &sec);
if ((year += 1900) < 1970)
year += 100;
xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
xtime.tv_nsec = 0;
/* install scheduling interrupt handler */
setup_irq(IRQ_CPU_TIMER0, &timer_irq);
time_divisor_init();
}
static int try_set_cmode(int new_cmode)
{
if (new_cmode > 15)
return -EINVAL;
if (!(clock_cmodes_permitted & (1<<new_cmode)))
return -EINVAL;
/* now change cmode */
local_irq_disable();
frv_dma_pause_all();
frv_change_cmode(new_cmode);
determine_clocks(0);
time_divisor_init();
#ifdef DEBUG
determine_clocks(1);
#endif
frv_dma_resume_all();
local_irq_enable();
return 0;
}