1 /* $NetBSD: mainbus.c,v 1.12 2021/08/07 16:18:51 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/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.12 2021/08/07 16:18:51 thorpej Exp $");
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/device.h>
44
45 #include <mips/cache.h>
46 #include <mips/cpuregs.h>
47
48 #include "locators.h"
49
50 static int mainbus_match(device_t, cfdata_t, void *);
51 static void mainbus_attach(device_t, device_t, void *);
52 static int mainbus_print(void *, const char *);
53
54 CFATTACH_DECL_NEW(mainbus, 0,
55 mainbus_match, mainbus_attach, NULL, NULL);
56
57 /* There can be only one. */
58 int mainbus_found;
59
60 struct mainbusdev {
61 const char *md_name;
62 };
63
64 const struct mainbusdev mainbusdevs[] = {
65 { "cpu", },
66 { "aubus", },
67 { "obio", },
68 { NULL, }
69 };
70
71 static int
mainbus_match(device_t parent,cfdata_t match,void * aux)72 mainbus_match(device_t parent, cfdata_t match, void *aux)
73 {
74
75 if (mainbus_found)
76 return (0);
77
78 return (1);
79 }
80
81 static void
mainbus_attach(device_t parent,device_t self,void * aux)82 mainbus_attach(device_t parent, device_t self, void *aux)
83 {
84 const struct mainbusdev *md;
85
86 mainbus_found = 1;
87 printf("\n");
88
89 for (md = mainbusdevs; md->md_name != NULL; md++) {
90 config_found(self, NULL, mainbus_print, CFARGS_NONE);
91 }
92 }
93
94 static int
mainbus_print(void * aux,const char * pnp)95 mainbus_print(void *aux, const char *pnp)
96 {
97
98 return (UNCONF);
99 }
100