uart_bus_ec.c revision 258177
1/*- 2 * Copyright (C) 2009 Yohanes Nugroho <yohanes@gmail.com> 3 * All rights reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: head/sys/arm/econa/uart_bus_ec.c 258177 2013-11-15 16:16:55Z jhb $"); 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/bus.h> 34#include <sys/conf.h> 35#include <sys/kernel.h> 36#include <sys/module.h> 37 38#include <machine/bus.h> 39#include <sys/rman.h> 40#include <machine/resource.h> 41 42#include <dev/uart/uart.h> 43#include <dev/uart/uart_bus.h> 44#include <dev/uart/uart_cpu.h> 45 46#include <arm/econa/econa_reg.h> 47 48static int uart_ec_probe(device_t dev); 49 50static device_method_t uart_ec_methods[] = { 51 /* Device interface */ 52 DEVMETHOD(device_probe, uart_ec_probe), 53 DEVMETHOD(device_attach, uart_bus_attach), 54 DEVMETHOD(device_detach, uart_bus_detach), 55 { 0, 0 } 56}; 57 58static driver_t uart_ec_driver = { 59 uart_driver_name, 60 uart_ec_methods, 61 sizeof(struct uart_softc), 62}; 63 64static int 65uart_ec_probe(device_t dev) 66{ 67 struct uart_softc *sc; 68 int status; 69 70 sc = device_get_softc(dev); 71 sc->sc_class = &uart_ns8250_class; 72 status = uart_bus_probe(dev, EC_UART_REGSHIFT, EC_UART_CLOCK, 0, 0); 73 return (status); 74} 75 76DRIVER_MODULE(uart, econaarm, uart_ec_driver, uart_devclass, 0, 0); 77