/* * UART class interface. */ static int tegra_uart_attach(struct uart_softc *sc) { int rv; struct ns8250_softc *ns8250 = (struct ns8250_softc*)sc; struct uart_bas *bas = &sc->sc_bas; rv = ns8250_bus_attach(sc); if (rv != 0) return (rv); ns8250->ier_rxbits = 0x1d; ns8250->ier_mask = 0xc0; ns8250->ier = uart_getreg(bas, REG_IER) & ns8250->ier_mask; ns8250->ier = ns8250->ier_rxbits; uart_setreg(bas, REG_IER, ns8250->ier); uart_barrier(bas); return (0); }
static int jz4780_bus_attach(struct uart_softc *sc) { struct ns8250_softc *ns8250; struct uart_bas *bas; int rv; ns8250 = (struct ns8250_softc *)sc; bas = &sc->sc_bas; rv = ns8250_bus_attach(sc); if (rv != 0) return (0); /* Configure uart to use extra IER_RXTMOUT bit */ ns8250->ier_rxbits = IER_RXTMOUT | IER_EMSC | IER_ERLS | IER_ERXRDY; ns8250->ier_mask = ~(ns8250->ier_rxbits); ns8250->ier = uart_getreg(bas, REG_IER) & ns8250->ier_mask; ns8250->ier |= ns8250->ier_rxbits; uart_setreg(bas, REG_IER, ns8250->ier); uart_barrier(bas); return (0); }