1 /* $NetBSD: mainbus.c,v 1.6 2021/08/07 16:18:57 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
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 1.6 2021/08/07 16:18:57 thorpej Exp $");
31
32 #include "obio.h"
33 #include "pci.h"
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38
39 #include <machine/autoconf.h>
40 #include <sys/bus.h>
41
42 #include <landisk/dev/obiovar.h>
43
44 static int mainbus_match(device_t, cfdata_t, void *);
45 static void mainbus_attach(device_t, device_t, void *);
46
47 CFATTACH_DECL_NEW(mainbus, 0,
48 mainbus_match, mainbus_attach, NULL, NULL);
49
50 static int mainbus_print(void *, const char *);
51
52 /* There can be only one. */
53 static int mainbus_found = 0;
54
55 static int
mainbus_match(device_t parent,cfdata_t cf,void * aux)56 mainbus_match(device_t parent, cfdata_t cf, void *aux)
57 {
58
59 if (mainbus_found)
60 return (0);
61
62 return (1);
63 }
64
65 static void
mainbus_attach(device_t parent,device_t self,void * aux)66 mainbus_attach(device_t parent, device_t self, void *aux)
67 {
68 union {
69 struct mainbus_attach_args mba_mba;
70 struct confargs mba_ca;
71 struct obiobus_attach_args mba_oba;
72 } mba;
73
74 mainbus_found = 1;
75
76 aprint_naive("\n");
77 aprint_normal("\n");
78
79 /* CPU */
80 memset(&mba, 0, sizeof(mba));
81 mba.mba_ca.ca_name = "cpu";
82 mba.mba_ca.ca_node = 0;
83 config_found(self, &mba, mainbus_print, CFARGS_NONE);
84
85 #if NPCI > 0
86 /* SH PCIC */
87 memset(&mba, 0, sizeof(mba));
88 mba.mba_mba.ma_name = "shpcic";
89 config_found(self, &mba, mainbus_print, CFARGS_NONE);
90 #endif
91
92 /* SH bus */
93 memset(&mba, 0, sizeof(mba));
94 mba.mba_mba.ma_name = "shb";
95 config_found(self, &mba, mainbus_print, CFARGS_NONE);
96
97 #if NOBIO > 0
98 /* on-board I/O */
99 memset(&mba, 0, sizeof(mba));
100 mba.mba_oba.oba_busname = "obio";
101 mba.mba_oba.oba_iot = &obio_bus_io;
102 mba.mba_oba.oba_memt = &obio_bus_mem;
103 config_found(self, &mba, mainbus_print, CFARGS_NONE);
104 #endif
105 }
106
107 static int
mainbus_print(void * aux,const char * pnp)108 mainbus_print(void *aux, const char *pnp)
109 {
110
111 return (pnp ? QUIET : UNCONF);
112 }
113