TCSR1
write_fn(read_fn(timer_baseaddr + TCSR1) & ~TCSR_ENT,
timer_baseaddr + TCSR1);
write_fn(TCSR_TINT|TCSR_ENT|TCSR_ARHT, timer_baseaddr + TCSR1);
regmap_read(priv->map, TCSR1, &tcsr1);
regmap_write(priv->map, TCSR1, tcsr1 | TCSR_LOAD);
regmap_write(priv->map, TCSR1, tcsr1);
regmap_write(priv->map, TCSR1, 0);
regmap_read(priv->map, TCSR1, &tcsr1);