txcon            1440 dev/ic/smc83c170.c 	u_int32_t txcon, miicfg;
txcon            1445 dev/ic/smc83c170.c 	txcon = bus_space_read_4(sc->sc_st, sc->sc_sh, EPIC_TXCON);
txcon            1447 dev/ic/smc83c170.c 		txcon |= (TXCON_LOOPBACK_D1|TXCON_LOOPBACK_D2);
txcon            1449 dev/ic/smc83c170.c 		txcon &= ~(TXCON_LOOPBACK_D1|TXCON_LOOPBACK_D2);
txcon            1450 dev/ic/smc83c170.c 	bus_space_write_4(sc->sc_st, sc->sc_sh, EPIC_TXCON, txcon);