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