PLLU_MISC0_LOCK_ENABLE
mask = PLLU_MISC0_LOCK_ENABLE | (hw_control ? PLLU_MISC0_IDDQ : 0);
val &= ~PLLU_MISC0_LOCK_ENABLE;
val |= PLLU_MISC0_DEFAULT_VALUE & PLLU_MISC0_LOCK_ENABLE;