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/i80321/i80321reg.h>
57
58#include <arm/xscale/i80321/iq80321reg.h>
59#include <arm/xscale/i80321/obiovar.h>
60
61bus_space_tag_t obio_bs_tag;
62
63int	obio_probe(device_t);
64int	obio_attach(device_t);
65
66int
67obio_probe(device_t dev)
68{
69	return (0);
70}
71
72int
73obio_attach(device_t dev)
74{
75	struct obio_softc *sc = device_get_softc(dev);
76
77	obio_bs_tag = arm_base_bs_tag;
78        sc->oba_st = obio_bs_tag;
79	sc->oba_addr = IQ80321_OBIO_BASE;
80	sc->oba_size = IQ80321_OBIO_SIZE;
81	sc->oba_rman.rm_type = RMAN_ARRAY;
82	sc->oba_rman.rm_descr = "OBIO I/O";
83	if (rman_init(&sc->oba_rman) != 0 ||
84	    rman_manage_region(&sc->oba_rman,
85	    sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
86		panic("obio_attach: failed to set up I/O rman");
87	sc->oba_irq_rman.rm_type = RMAN_ARRAY;
88	sc->oba_irq_rman.rm_descr = "OBIO IRQ";
89	if (rman_init(&sc->oba_irq_rman) != 0 ||
90	    rman_manage_region(&sc->oba_irq_rman, 28, 28) != 0)
91		panic("obio_attach: failed to set up IRQ rman");
92	device_add_child(dev, "uart", 0);
93	bus_generic_probe(dev);
94	bus_generic_attach(dev);
95	return (0);
96}
97
98static struct resource *
99obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
100    u_long start, u_long end, u_long count, u_int flags)
101{
102	struct resource *rv;
103	struct rman *rm;
104	bus_space_tag_t bt = NULL;
105	bus_space_handle_t bh = 0;
106	struct obio_softc *sc = device_get_softc(bus);
107
108	switch (type) {
109	case SYS_RES_IRQ:
110		rm = &sc->oba_irq_rman;
111		break;
112	case SYS_RES_MEMORY:
113		return (NULL);
114	case SYS_RES_IOPORT:
115		rm = &sc->oba_rman;
116		bt = sc->oba_st;
117		bh = sc->oba_addr;
118		start = bh;
119		break;
120	default:
121		return (NULL);
122	}
123
124
125	rv = rman_reserve_resource(rm, start, end, count, flags, child);
126	if (rv == NULL)
127		return (NULL);
128	if (type == SYS_RES_IRQ)
129		return (rv);
130	rman_set_rid(rv, *rid);
131	rman_set_bustag(rv, bt);
132	rman_set_bushandle(rv, bh);
133
134	return (rv);
135
136}
137
138static int
139obio_activate_resource(device_t bus, device_t child, int type, int rid,
140    struct resource *r)
141{
142	return (0);
143}
144static 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
156static driver_t obio_driver = {
157	"obio",
158	obio_methods,
159	sizeof(struct obio_softc),
160};
161static devclass_t obio_devclass;
162
163DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);
164