1 /* $NetBSD: obio.c,v 1.19 2021/08/07 16:19:00 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Wayne Knowles
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.19 2021/08/07 16:19:00 thorpej Exp $");
34
35 #include "locators.h"
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/device.h>
40
41 #include <machine/autoconf.h>
42 #include <machine/mainboard.h>
43 #include <machine/bus.h>
44 #include <machine/sysconf.h>
45
46 static int obio_match(device_t, cfdata_t, void *);
47 static void obio_attach(device_t, device_t, void *);
48 static int obio_search(device_t, cfdata_t, const int *, void *);
49 static int obio_print(void *, const char *);
50 static void obio_intr_establish(bus_space_tag_t, int, int, int,
51 int (*)(void *), void *);
52
53 CFATTACH_DECL_NEW(obio, 0,
54 obio_match, obio_attach, NULL, NULL);
55
56 extern struct cfdriver obio_cd;
57
58 struct mipsco_bus_space obio_bustag;
59 struct mipsco_bus_dma_tag obio_dmatag;
60
61 static int
obio_match(device_t parent,cfdata_t cf,void * aux)62 obio_match(device_t parent, cfdata_t cf, void *aux)
63 {
64 struct confargs *ca = aux;
65
66 if (strcmp(ca->ca_name, obio_cd.cd_name) != 0)
67 return 0;
68
69 return 1;
70 }
71
72 static void
obio_attach(device_t parent,device_t self,void * aux)73 obio_attach(device_t parent, device_t self, void *aux)
74 {
75 struct confargs *ca = aux;
76
77 /* PIZAZZ (Mips 3000 Magnum) Address Map */
78 mipsco_bus_space_init(&obio_bustag, "obio",
79 0x18000000, 0xb8000000,
80 0xb8000000, 0x08000000);
81
82 _bus_dma_tag_init(&obio_dmatag);
83 obio_bustag.bs_intr_establish = obio_intr_establish; /* XXX */
84
85 ca->ca_bustag = &obio_bustag;
86 ca->ca_dmatag = &obio_dmatag;
87
88 printf("\n");
89 config_search(self, ca,
90 CFARGS(.search = obio_search));
91 }
92
93 static int
obio_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)94 obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
95 {
96 struct confargs *ca = aux;
97
98 ca->ca_addr = cf->cf_addr;
99 ca->ca_name = cf->cf_name;
100
101 if (config_probe(parent, cf, ca))
102 config_attach(parent, cf, ca, obio_print, CFARGS_NONE);
103
104 return 0;
105 }
106
107 /*
108 * Print out the confargs. The (parent) name is non-NULL
109 * when there was no match found by config_found().
110 */
111 static int
obio_print(void * args,const char * name)112 obio_print(void *args, const char *name)
113 {
114 struct confargs *ca = args;
115
116 if (name)
117 return(QUIET);
118
119 if (ca->ca_addr != -1)
120 aprint_normal(" addr 0x%x", ca->ca_addr);
121
122 return(UNCONF);
123 }
124
125 void
obio_intr_establish(bus_space_tag_t bst,int level,int pri,int flags,int (* func)(void *),void * arg)126 obio_intr_establish(bus_space_tag_t bst, int level, int pri, int flags,
127 int (*func)(void *), void *arg)
128 {
129 (*platform.intr_establish)(level, func, arg);
130 }
131