1 /* $NetBSD: mainbus.c,v 1.22 2021/08/07 16:18:47 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2000 Soren S. Jorvang. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.22 2021/08/07 16:18:47 thorpej Exp $");
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/device.h>
34
35 #include <mips/cpuregs.h>
36
37 #include <machine/autoconf.h>
38
39 #include "locators.h"
40
41 static int mainbus_match(device_t, cfdata_t, void *);
42 static void mainbus_attach(device_t, device_t, void *);
43 static int mainbus_search(device_t, cfdata_t,
44 const int *, void *);
45 int mainbus_print(void *, const char *);
46
47 CFATTACH_DECL_NEW(mainbus, 0,
48 mainbus_match, mainbus_attach, NULL, NULL);
49
50 extern struct mips_bus_space cobalt_bs;
51
52 static int
mainbus_match(device_t parent,cfdata_t cf,void * aux)53 mainbus_match(device_t parent, cfdata_t cf, void *aux)
54 {
55
56 return 1;
57 }
58
59 static void
mainbus_attach(device_t parent,device_t self,void * aux)60 mainbus_attach(device_t parent, device_t self, void *aux)
61 {
62 struct mainbus_attach_args ma;
63
64 aprint_normal("\n");
65
66 config_search(self, &ma,
67 CFARGS(.search = mainbus_search));
68 }
69
70 static int
mainbus_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)71 mainbus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
72 {
73 struct mainbus_attach_args *ma = aux;
74
75 do {
76 ma->ma_addr = cf->cf_loc[MAINBUSCF_ADDR];
77 ma->ma_iot = &cobalt_bs;
78 ma->ma_level = cf->cf_loc[MAINBUSCF_LEVEL];
79 ma->ma_irq = cf->cf_loc[MAINBUSCF_IRQ];
80 if (config_probe(parent, cf, ma))
81 config_attach(parent, cf, ma, mainbus_print, CFARGS_NONE);
82 } while (cf->cf_fstate == FSTATE_STAR);
83
84 return 0;
85 }
86
87 int
mainbus_print(void * aux,const char * pnp)88 mainbus_print(void *aux, const char *pnp)
89 {
90 struct mainbus_attach_args *ma = aux;
91
92 if (pnp != 0)
93 return QUIET;
94
95 if (ma->ma_addr != MAINBUSCF_ADDR_DEFAULT)
96 aprint_normal(" addr 0x%"PRIxBUSADDR, ma->ma_addr);
97 if (ma->ma_level != MAINBUSCF_LEVEL_DEFAULT)
98 aprint_normal(" level %d", ma->ma_level);
99 if (ma->ma_irq != MAINBUSCF_IRQ_DEFAULT)
100 aprint_normal(" irq %d", ma->ma_irq);
101
102 return UNCONF;
103 }
104