1 /* $NetBSD: obio.c,v 1.3 2021/08/07 16:18:49 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe 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 /*
39 * On-board device autoconfiguration support for Tungsten motherboards.
40 */
41
42 #include <sys/cdefs.h>
43 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.3 2021/08/07 16:18:49 thorpej Exp $");
44
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/device.h>
48
49 #include <machine/autoconf.h>
50 #include <sys/bus.h>
51
52 #include <arm/xscale/i80321reg.h>
53
54 #include <evbarm/iyonix/iyonixreg.h>
55 #include <evbarm/iyonix/obiovar.h>
56
57 #include "locators.h"
58
59 int obio_match(device_t, cfdata_t, void *);
60 void obio_attach(device_t, device_t, void *);
61
62 CFATTACH_DECL_NEW(obio, 0,
63 obio_match, obio_attach, NULL, NULL);
64
65 int obio_print(void *, const char *);
66 int obio_search(device_t, cfdata_t, const int *, void *);
67
68 /* there can be only one */
69 bool obio_found;
70
71 int
obio_match(device_t parent,cfdata_t cf,void * aux)72 obio_match(device_t parent, cfdata_t cf, void *aux)
73 {
74 #if 0
75 struct mainbus_attach_args *ma = aux;
76 #endif
77
78 if (obio_found)
79 return (0);
80
81 #if 1
82 /* XXX Shoot arch/arm/mainbus in the head. */
83 return (1);
84 #else
85 if (strcmp(cf->cf_name, ma->ma_name) == 0)
86 return (1);
87
88 return (0);
89 #endif
90 }
91
92 void
obio_attach(device_t parent,device_t self,void * aux)93 obio_attach(device_t parent, device_t self, void *aux)
94 {
95
96 obio_found = true;
97
98 aprint_naive("\n");
99 aprint_normal("\n");
100
101 /*
102 * Attach all on-board devices as described in the kernel
103 * configuration file.
104 */
105 config_search(self, NULL,
106 CFARGS(.search = obio_search));
107 }
108
109 int
obio_print(void * aux,const char * pnp)110 obio_print(void *aux, const char *pnp)
111 {
112 struct obio_attach_args *oba = aux;
113
114 aprint_normal(" addr 0x%08lx", oba->oba_addr);
115 if (oba->oba_size != OBIOCF_SIZE_DEFAULT)
116 aprint_normal("-0x%08lx", oba->oba_addr + (oba->oba_size - 1));
117 if (oba->oba_width != OBIOCF_WIDTH_DEFAULT)
118 aprint_normal(" width %d", oba->oba_width);
119 if (oba->oba_irq != -1)
120 aprint_normal(" xint %d", oba->oba_irq - ICU_INT_XINT0);
121
122 return (UNCONF);
123 }
124
125 int
obio_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)126 obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
127 {
128 struct obio_attach_args oba;
129
130 oba.oba_st = &obio_bs_tag;
131
132 oba.oba_addr = cf->cf_loc[OBIOCF_ADDR];
133 oba.oba_size = cf->cf_loc[OBIOCF_SIZE];
134 oba.oba_width = cf->cf_loc[OBIOCF_WIDTH];
135
136 if (cf->cf_loc[OBIOCF_XINT] != OBIOCF_XINT_DEFAULT)
137 oba.oba_irq = ICU_INT_XINT(cf->cf_loc[OBIOCF_XINT]);
138 else
139 oba.oba_irq = -1;
140
141 if (config_probe(parent, cf, &oba))
142 config_attach(parent, cf, &oba, obio_print, CFARGS_NONE);
143
144 return (0);
145 }
146