OMAP_TIMER_WAKEUP_EN_REG
l = dmtimer_read(timer, OMAP_TIMER_WAKEUP_EN_REG) & ~mask;
dmtimer_write(timer, OMAP_TIMER_WAKEUP_EN_REG, l);
dmtimer_write(timer, OMAP_TIMER_WAKEUP_EN_REG, value);
dmtimer_write(timer, OMAP_TIMER_WAKEUP_EN_REG, timer->context.twer);
timer->context.twer = dmtimer_read(timer, OMAP_TIMER_WAKEUP_EN_REG);