writel(MPSC_CHR_2_RA, pi->mpsc_base + MPSC_CHR_2);
mpsc_start_rx(struct mpsc_port_info *pi){	pr_debug("mpsc_start_rx[%d]: Starting...\n", pi->port.line);	if (pi->rcv_data) {		mpsc_enter_hunt(pi);		mpsc_sdma_cmd(pi, SDMA_SDCM_ERD);	}	return;}