uart_bus_maltausart.c revision 178173 
1/*-
2 * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * $Id$
25 */
26/*
27 * Skeleton of this file was based on respective code for ARM
28 * code written by Olivier Houchard.
29 */
30
31/*
32 * XXXMIPS: This file is hacked from arm/... . XXXMIPS here means this file is
33 * experimental and was written for MIPS32 port.
34 */
35#include "opt_uart.h"
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD: head/sys/mips/mips32/malta/uart_bus_maltausart.c 178173 2008-04-13 07:44:55Z imp $");
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/bus.h>
43#include <sys/conf.h>
44#include <sys/kernel.h>
45#include <sys/module.h>
46#include <machine/bus.h>
47#include <sys/rman.h>
48#include <machine/resource.h>
49
50#include <dev/pci/pcivar.h>
51
52#include <dev/uart/uart.h>
53#include <dev/uart/uart_bus.h>
54#include <dev/uart/uart_cpu.h>
55
56/*
57 * XXXMIPS:
58 */
59#include <mips/mips32/malta/maltareg.h>
60
61#include "uart_if.h"
62
63static int uart_malta_probe(device_t dev);
64
65extern struct uart_class malta_uart_class;
66
67static device_method_t uart_malta_methods[] = {
68	/* Device interface */
69	DEVMETHOD(device_probe,		uart_malta_probe),
70	DEVMETHOD(device_attach,	uart_bus_attach),
71	DEVMETHOD(device_detach,	uart_bus_detach),
72	{ 0, 0 }
73};
74
75static driver_t uart_malta_driver = {
76	uart_driver_name,
77	uart_malta_methods,
78	sizeof(struct uart_softc),
79};
80
81extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
82static int
83uart_malta_probe(device_t dev)
84{
85	struct uart_softc *sc;
86
87	sc = device_get_softc(dev);
88	sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
89	sc->sc_class = &uart_ns8250_class;
90	bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
91	sc->sc_sysdev->bas.bst = 0;
92	sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
93	sc->sc_bas.bst = 0;
94	sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
95	return(uart_bus_probe(dev, 0, 0, 0, 0));
96}
97
98DRIVER_MODULE(uart, obio, uart_malta_driver, uart_devclass, 0, 0);
99