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