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("$FreeBSD$");
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 #include <sys/rman.h>
52 #include <sys/malloc.h>
53
54 #include <machine/bus.h>
55
56 #include <arm/xscale/i8134x/i81342reg.h>
57 #include <arm/xscale/i8134x/obiovar.h>
58
59 static int
60 obio_probe(device_t dev)
61 {
62 return (0);
63 }
64
65 static int
66 obio_attach(device_t dev)
67 {
68 struct obio_softc *sc = device_get_softc(dev);
69
70 sc->oba_st = arm_base_bs_tag;
71 sc->oba_rman.rm_type = RMAN_ARRAY;
72 sc->oba_rman.rm_descr = "OBIO I/O";
73 if (rman_init(&sc->oba_rman) != 0 ||
74 rman_manage_region(&sc->oba_rman,
75 IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0)
76 panic("obio_attach: failed to set up I/O rman");
77 sc->oba_irq_rman.rm_type = RMAN_ARRAY;
78 sc->oba_irq_rman.rm_descr = "OBIO IRQ";
79 if (rman_init(&sc->oba_irq_rman) != 0 ||
80 rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0)
81 panic("obio_attach: failed to set up IRQ rman");
82 device_add_child(dev, "uart", 0);
83 device_add_child(dev, "uart", 1);
84 bus_generic_probe(dev);
85 bus_generic_attach(dev);
86 return (0);
87 }
88
89 static struct resource *
90 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
91 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
92 {
93 struct resource *rv;
94 struct rman *rm;
95 bus_space_tag_t bt = NULL;
96 bus_space_handle_t bh = 0;
97 struct obio_softc *sc = device_get_softc(bus);
98 int unit = device_get_unit(child);
99
100 switch (type) {
101 case SYS_RES_IRQ:
102 rm = &sc->oba_irq_rman;
103 if (unit == 0)
104 start = end = ICU_INT_UART0;
105 else
106 start = end = ICU_INT_UART1;
107 break;
108 case SYS_RES_MEMORY:
109 return (NULL);
110 case SYS_RES_IOPORT:
111 rm = &sc->oba_rman;
112 bt = sc->oba_st;
113 if (unit == 0) {
114 bh = IOP34X_UART0_VADDR;
115 start = bh;
116 end = IOP34X_UART1_VADDR;
117 } else {
118 bh = IOP34X_UART1_VADDR;
119 start = bh;
120 end = start + 0x40;
121 }
122 break;
123 default:
124 return (NULL);
125 }
126
127
128 rv = rman_reserve_resource(rm, start, end, count, flags, child);
129 if (rv == NULL)
130 return (NULL);
131 if (type == SYS_RES_IRQ)
132 return (rv);
133 rman_set_rid(rv, *rid);
134 rman_set_bustag(rv, bt);
135 rman_set_bushandle(rv, bh);
136
137 return (rv);
138
139 }
140
141 static int
142 obio_activate_resource(device_t bus, device_t child, int type, int rid,
143 struct resource *r)
144 {
145 return (0);
146 }
147 static device_method_t obio_methods[] = {
148 DEVMETHOD(device_probe, obio_probe),
149 DEVMETHOD(device_attach, obio_attach),
150
151 DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
152 DEVMETHOD(bus_activate_resource, obio_activate_resource),
153 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
154 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
155
156 {0, 0},
157 };
158
159 static driver_t obio_driver = {
160 "obio",
161 obio_methods,
162 sizeof(struct obio_softc),
163 };
164 static devclass_t obio_devclass;
165
166 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);
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