TL_CH_PARM
CSR_WRITE_4(sc, TL_CH_PARM, vtophys(sc->tl_cdata.tl_rx_head->tl_ptr));
CSR_WRITE_4(sc, TL_CH_PARM,
(unsigned int)CSR_READ_4(sc, TL_CH_PARM));
CSR_WRITE_4(sc, TL_CH_PARM, vtophys(start_tx->tl_ptr));
CSR_WRITE_4(sc, TL_CH_PARM, vtophys(&sc->tl_ldata->tl_rx_list[0]));
CSR_WRITE_4(sc, TL_CH_PARM, 0);
CSR_WRITE_4(sc, TL_CH_PARM, 0);
CSR_WRITE_4(sc, TL_CH_PARM, 0);