1/*	$NetBSD: flash.c,v 1.4 2011/06/18 06:44:27 matt Exp $	*/
2
3/*
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: flash.c,v 1.4 2011/06/18 06:44:27 matt Exp $");
34
35#include <sys/param.h>
36#include <sys/device.h>
37#include <sys/systm.h>
38
39#include <sys/bus.h>
40#include <arch/evbppc/pmppc/dev/mainbus.h>
41
42struct flash_softc {
43	device_t sc_dev;
44	bus_space_tag_t sc_tag;
45	bus_space_handle_t sc_handle;
46	u_int32_t sc_addr;
47	u_int32_t sc_size;
48	u_int32_t sc_width;
49};
50
51static int	flash_match(device_t, cfdata_t, void *);
52static void	flash_attach(device_t, device_t, void *);
53
54CFATTACH_DECL_NEW(flash, sizeof(struct flash_softc),
55    flash_match, flash_attach, NULL, NULL);
56
57int
58flash_match(device_t parent, cfdata_t cf, void *aux)
59{
60	struct mainbus_attach_args *maa = aux;
61
62	return (strcmp(maa->mb_name, "flash") == 0);
63}
64
65void
66flash_attach(device_t parent, device_t self, void *aux)
67{
68	struct mainbus_attach_args *maa = aux;
69	struct flash_softc *sc = device_private(self);
70
71	sc->sc_tag = maa->mb_bt;
72	sc->sc_addr = maa->mb_addr;
73	sc->sc_size = maa->u.mb_flash.size / 8; /* bytes */
74	sc->sc_width = maa->u.mb_flash.width;
75
76	aprint_normal(": %d Mbyte, %d bits wide\n", sc->sc_size / (1024*1024),
77	       sc->sc_width);
78#if 0
79	/* The extend map doesn't cover this area. */
80	if (bus_space_map(sc->sc_tag, sc->sc_addr, sc->sc_size, 0,
81			  &sc->sc_handle)) {
82		aprint_error_dev(self, "can't map i/o space\n");
83		return;
84	}
85#endif
86
87	aprint_error_dev(self, "driver not implemented\n");
88}
89