xref: /netbsd/sys/arch/evbmips/alchemy/mainbus.c (revision c4a72b64)
1 /* $NetBSD: mainbus.c,v 1.5 2002/10/02 05:12:53 thorpej Exp $ */
2 
3 /*
4  * Copyright 2002 Wasabi Systems, Inc.
5  * All rights reserved.
6  *
7  * Written by Simon Burge for Wasabi Systems, Inc.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *      This product includes software developed for the NetBSD Project by
20  *      Wasabi Systems, Inc.
21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22  *    or promote products derived from this software without specific prior
23  *    written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35  * POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/device.h>
41 
42 #include <mips/cache.h>
43 #include <mips/cpuregs.h>
44 
45 #include "locators.h"
46 
47 static int	mainbus_match(struct device *, struct cfdata *, void *);
48 static void	mainbus_attach(struct device *, struct device *, void *);
49 static int	mainbus_submatch(struct device *, struct cfdata *, void *);
50 static int	mainbus_print(void *, const char *);
51 
52 CFATTACH_DECL(mainbus, sizeof(struct device),
53     mainbus_match, mainbus_attach, NULL, NULL);
54 
55 /* There can be only one. */
56 int	mainbus_found;
57 
58 struct mainbusdev {
59 	const char *md_name;
60 };
61 
62 struct mainbusdev mainbusdevs[] = {
63 	{ "cpu",	},
64 	{ "aubus",	},
65 	{ "obio",	},
66 	{ NULL,		}
67 };
68 
69 static int
70 mainbus_match(parent, match, aux)
71 	struct device *parent;
72 	struct cfdata *match;
73 	void *aux;
74 {
75 
76 	if (mainbus_found)
77 		return (0);
78 
79 	return (1);
80 }
81 
82 static void
83 mainbus_attach(parent, self, aux)
84 	struct device *parent;
85 	struct device *self;
86 	void *aux;
87 {
88 	struct mainbusdev *md;
89 
90 	mainbus_found = 1;
91 	printf("\n");
92 
93 	for (md = mainbusdevs; md->md_name != NULL; md++) {
94 		config_found_sm(self, NULL, mainbus_print, mainbus_submatch);
95 	}
96 }
97 
98 static int
99 mainbus_submatch(struct device *parent, struct cfdata *cf, void *aux)
100 {
101 
102 	return (config_match(parent, cf, aux));
103 }
104 
105 static int
106 mainbus_print(void *aux, const char *pnp)
107 {
108 
109 	return (UNCONF);
110 }
111