1/*	$NetBSD: obio.c,v 1.2 2011/06/06 16:29:15 matt 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#include <sys/cdefs.h>
39__KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.2 2011/06/06 16:29:15 matt Exp $");
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/device.h>
44
45#include <machine/autoconf.h>
46#include <sys/bus.h>
47
48#include <arm/xscale/i80321reg.h>
49
50#include <evbarm/hdl_g/hdlgreg.h>
51#include <evbarm/hdl_g/obiovar.h>
52
53#include "locators.h"
54
55int	obio_match(device_t, cfdata_t, void *);
56void	obio_attach(device_t, device_t, void *);
57
58CFATTACH_DECL_NEW(obio, 0,
59    obio_match, obio_attach, NULL, NULL);
60
61int	obio_print(void *, const char *);
62int	obio_search(device_t, cfdata_t, const int *, void *);
63
64/* there can be only one */
65bool	obio_found;
66
67int
68obio_match(device_t parent, cfdata_t cf, void *aux)
69{
70
71	if (obio_found)
72		return 0;
73	return 1;
74}
75
76void
77obio_attach(device_t parent, device_t self, void *aux)
78{
79
80	obio_found = true;
81
82	aprint_naive("\n");
83	aprint_normal("\n");
84
85	/*
86	 * Attach all on-board devices as described in the kernel
87	 * configuration file.
88	 */
89	config_search_ia(obio_search, self, "obio", NULL);
90}
91
92int
93obio_print(void *aux, const char *pnp)
94{
95	struct obio_attach_args *oba = aux;
96
97	aprint_normal(" addr 0x%08lx", oba->oba_addr);
98	if (oba->oba_size != OBIOCF_SIZE_DEFAULT)
99		aprint_normal("-0x%08lx", oba->oba_addr + (oba->oba_size - 1));
100	if (oba->oba_width != OBIOCF_WIDTH_DEFAULT)
101		aprint_normal(" width %d", oba->oba_width);
102	if (oba->oba_irq != -1)
103		aprint_normal(" xint %d", oba->oba_irq - ICU_INT_XINT0);
104
105	return UNCONF;
106}
107
108int
109obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
110{
111	struct obio_attach_args oba;
112
113	oba.oba_st = &obio_bs_tag;
114
115	oba.oba_addr = cf->cf_loc[OBIOCF_ADDR];
116	oba.oba_size = cf->cf_loc[OBIOCF_SIZE];
117	oba.oba_width = cf->cf_loc[OBIOCF_WIDTH];
118
119	if (cf->cf_loc[OBIOCF_XINT] != OBIOCF_XINT_DEFAULT)
120		oba.oba_irq = ICU_INT_XINT(cf->cf_loc[OBIOCF_XINT]);
121	else
122		oba.oba_irq = -1;
123
124	if (config_match(parent, cf, &oba) > 0)
125		config_attach(parent, cf, &oba, obio_print);
126
127	return 0;
128}
129