TIMER_CTL_PERIOD_MODE
TIMER_CTL_PERIOD_MODE|TIMER_CTL_64BIT_WIDTH);
if (flag & TIMER_CTL_PERIOD_MODE)
val |= TIMER_CTL_PERIOD_MODE;
val &= ~TIMER_CTL_PERIOD_MODE;
sprd_timer_enable(timer_of_base(to), TIMER_CTL_PERIOD_MODE);