uart_bus_ec.c revision 201468
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 * 3. Neither the name of MARVELL nor the names of contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: head/sys/arm/econa/uart_bus_ec.c 201468 2010-01-04 03:35:45Z rpaulo $"); 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bus.h> 37#include <sys/conf.h> 38#include <sys/kernel.h> 39#include <sys/module.h> 40 41#include <machine/bus.h> 42#include <sys/rman.h> 43#include <machine/resource.h> 44 45#include <dev/uart/uart.h> 46#include <dev/uart/uart_bus.h> 47#include <dev/uart/uart_cpu.h> 48 49#include <arm/econa/econa_reg.h> 50 51static int uart_ec_probe(device_t dev); 52 53static device_method_t uart_ec_methods[] = { 54 /* Device interface */ 55 DEVMETHOD(device_probe, uart_ec_probe), 56 DEVMETHOD(device_attach, uart_bus_attach), 57 DEVMETHOD(device_detach, uart_bus_detach), 58 { 0, 0 } 59}; 60 61static driver_t uart_ec_driver = { 62 uart_driver_name, 63 uart_ec_methods, 64 sizeof(struct uart_softc), 65}; 66 67static int 68uart_ec_probe(device_t dev) 69{ 70 struct uart_softc *sc; 71 int status; 72 73 sc = device_get_softc(dev); 74 sc->sc_class = &uart_ns8250_class; 75 status = uart_bus_probe(dev, EC_UART_REGSHIFT, EC_UART_CLOCK, 0, 0); 76 return (status); 77} 78 79DRIVER_MODULE(uart, econaarm, uart_ec_driver, uart_devclass, 0, 0); 80