1 /* $NetBSD: obio.c,v 1.11 2003/07/15 00:25:05 lukem 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 Intel IQ80321
40 * evaluation boards.
41 */
42
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD: releng/6.0/sys/arm/xscale/i80321/obio.c 139735 2005-01-05 21:58:49Z imp $");
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/bus.h>
49 #include <sys/kernel.h>
50 #include <sys/module.h>
51 #define __RMAN_RESOURCE_VISIBLE
52 #include <sys/rman.h>
53 #include <sys/malloc.h>
54
55 #include <machine/bus.h>
56
57 #include <arm/xscale/i80321/i80321reg.h>
58
59 #include <arm/xscale/i80321/iq80321reg.h>
60 #include <arm/xscale/i80321/obiovar.h>
61
62 int obio_probe(device_t);
63 int obio_attach(device_t);
64
65 int
66 obio_probe(device_t dev)
67 {
68 return (0);
69 }
70
71 int
72 obio_attach(device_t dev)
73 {
74 struct obio_softc *sc = device_get_softc(dev);
75
76 sc->oba_st = &obio_bs_tag;
77 sc->oba_addr = IQ80321_OBIO_BASE;
78 sc->oba_size = IQ80321_OBIO_SIZE;
79 sc->oba_rman.rm_type = RMAN_ARRAY;
80 sc->oba_rman.rm_descr = "OBIO I/O";
81 if (rman_init(&sc->oba_rman) != 0 ||
82 rman_manage_region(&sc->oba_rman,
83 sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
84 panic("obio_attach: failed to set up I/O rman");
85 device_add_child(dev, "uart", 0);
86 bus_generic_probe(dev);
87 bus_generic_attach(dev);
88 return (0);
89 }
90
91 static struct resource *
92 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
93 u_long start, u_long end, u_long count, u_int flags)
94 {
95 struct resource *rv;
96 struct rman *rm;
97 bus_space_tag_t bt;
98 bus_space_handle_t bh;
99 struct obio_softc *sc = device_get_softc(bus);
100
101 if (type == SYS_RES_IRQ) {
102 rv = malloc(sizeof(*rv), M_DEVBUF, M_WAITOK);
103 rv->r_start = 28;
104 rv->r_end = 28;
105 rv->r_rid = *rid;
106 return (rv);
107 }
108 switch (type) {
109 case SYS_RES_MEMORY:
110 return (NULL);
111 case SYS_RES_IOPORT:
112 rm = &sc->oba_rman;
113 bt = sc->oba_st;
114 bh = sc->oba_addr;
115 break;
116 default:
117 return (NULL);
118 }
119
120 start = bh;
121
122 rv = rman_reserve_resource(rm, start, end, count, flags, child);
123 if (rv == NULL)
124 return (NULL);
125 rman_set_bustag(rv, bt);
126 rman_set_bushandle(rv, bh);
127
128 if (0) {
129 if (bus_activate_resource(child, type, *rid, rv)) {
130 rman_release_resource(rv);
131 return (NULL);
132 }
133 }
134 return (rv);
135
136 }
137
138 static int
139 obio_activate_resource(device_t bus, device_t child, int type, int rid,
140 struct resource *r)
141 {
142 return (0);
143 }
144 static device_method_t obio_methods[] = {
145 DEVMETHOD(device_probe, obio_probe),
146 DEVMETHOD(device_attach, obio_attach),
147
148 DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
149 DEVMETHOD(bus_activate_resource, obio_activate_resource),
150 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
151 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
152
153 {0, 0},
154 };
155
156 static driver_t obio_driver = {
157 "obio",
158 obio_methods,
159 sizeof(struct obio_softc),
160 };
161 static devclass_t obio_devclass;
162
163 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);
Cache object: aef6084ec976e803ffba20bd8215e3a5
|