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 bus_space_tag_t obio_bs_tag;
60
61 static int
obio_probe(device_t dev)62 obio_probe(device_t dev)
63 {
64 return (0);
65 }
66
67 static int
obio_attach(device_t dev)68 obio_attach(device_t dev)
69 {
70 struct obio_softc *sc = device_get_softc(dev);
71
72 obio_bs_tag = arm_base_bs_tag;
73 sc->oba_st = obio_bs_tag;
74 sc->oba_rman.rm_type = RMAN_ARRAY;
75 sc->oba_rman.rm_descr = "OBIO I/O";
76 if (rman_init(&sc->oba_rman) != 0 ||
77 rman_manage_region(&sc->oba_rman,
78 IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0)
79 panic("obio_attach: failed to set up I/O rman");
80 sc->oba_irq_rman.rm_type = RMAN_ARRAY;
81 sc->oba_irq_rman.rm_descr = "OBIO IRQ";
82 if (rman_init(&sc->oba_irq_rman) != 0 ||
83 rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0)
84 panic("obio_attach: failed to set up IRQ rman");
85 device_add_child(dev, "uart", 0);
86 device_add_child(dev, "uart", 1);
87 bus_generic_probe(dev);
88 bus_generic_attach(dev);
89 return (0);
90 }
91
92 static struct resource *
obio_alloc_resource(device_t bus,device_t child,int type,int * rid,u_long start,u_long end,u_long count,u_int flags)93 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
94 u_long start, u_long end, u_long count, u_int flags)
95 {
96 struct resource *rv;
97 struct rman *rm;
98 bus_space_tag_t bt = NULL;
99 bus_space_handle_t bh = 0;
100 struct obio_softc *sc = device_get_softc(bus);
101 int unit = device_get_unit(child);
102
103 switch (type) {
104 case SYS_RES_IRQ:
105 rm = &sc->oba_irq_rman;
106 if (unit == 0)
107 start = end = ICU_INT_UART0;
108 else
109 start = end = ICU_INT_UART1;
110 break;
111 case SYS_RES_MEMORY:
112 return (NULL);
113 case SYS_RES_IOPORT:
114 rm = &sc->oba_rman;
115 bt = sc->oba_st;
116 if (unit == 0) {
117 bh = IOP34X_UART0_VADDR;
118 start = bh;
119 end = IOP34X_UART1_VADDR;
120 } else {
121 bh = IOP34X_UART1_VADDR;
122 start = bh;
123 end = start + 0x40;
124 }
125 break;
126 default:
127 return (NULL);
128 }
129
130
131 rv = rman_reserve_resource(rm, start, end, count, flags, child);
132 if (rv == NULL)
133 return (NULL);
134 if (type == SYS_RES_IRQ)
135 return (rv);
136 rman_set_rid(rv, *rid);
137 rman_set_bustag(rv, bt);
138 rman_set_bushandle(rv, bh);
139
140 return (rv);
141
142 }
143
144 static int
obio_activate_resource(device_t bus,device_t child,int type,int rid,struct resource * r)145 obio_activate_resource(device_t bus, device_t child, int type, int rid,
146 struct resource *r)
147 {
148 return (0);
149 }
150 static device_method_t obio_methods[] = {
151 DEVMETHOD(device_probe, obio_probe),
152 DEVMETHOD(device_attach, obio_attach),
153
154 DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
155 DEVMETHOD(bus_activate_resource, obio_activate_resource),
156 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
157 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
158
159 {0, 0},
160 };
161
162 static driver_t obio_driver = {
163 "obio",
164 obio_methods,
165 sizeof(struct obio_softc),
166 };
167 static devclass_t obio_devclass;
168
169 DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);
170