mainbus.c revision 1.1 
1/*	$NetBSD: mainbus.c,v 1.1 2014/11/22 15:17:02 macallan Exp $ */
2
3/*-
4 * Copyright (c) 2014 Michael Lorenz
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.1 2014/11/22 15:17:02 macallan Exp $");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/device.h>
35
36#include <mips/cache.h>
37#include <mips/cpuregs.h>
38
39#include "locators.h"
40
41static int	mainbus_match(device_t, cfdata_t, void *);
42static void	mainbus_attach(device_t, device_t, void *);
43static int	mainbus_print(void *, const char *);
44
45CFATTACH_DECL_NEW(mainbus, 0,
46    mainbus_match, mainbus_attach, NULL, NULL);
47
48/* There can be only one. */
49int	mainbus_found = 0;
50
51struct mainbusdev {
52	const char *md_name;
53};
54
55struct mainbusdev mainbusdevs[] = {
56	{ "cpu",	},
57	{ "com",	},
58	{ NULL,		}
59};
60
61static int
62mainbus_match(device_t parent, cfdata_t match, void *aux)
63{
64
65	if (mainbus_found)
66		return (0);
67
68	return (1);
69}
70
71static void
72mainbus_attach(device_t parent, device_t self, void *aux)
73{
74	const struct mainbusdev *md;
75
76	mainbus_found = 1;
77	printf("\n");
78
79	for (md = mainbusdevs; md->md_name != NULL; md++) {
80		struct mainbusdev ma = *md;
81		config_found_ia(self, "mainbus", &ma, mainbus_print);
82	}
83}
84
85static int
86mainbus_print(void *aux, const char *pnp)
87{
88
89	return (QUIET);
90}
91