1/*-
2 * Copyright (c) 2009 Roelof Jonkman, Carlson Wireless Inc.
3 * Copyright (c) 2009 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/conf.h>
34#include <sys/kernel.h>
35#include <sys/malloc.h>
36#include <sys/module.h>
37#include <sys/rman.h>
38#include <sys/sysctl.h>
39
40#include <machine/bus.h>
41
42#include <dev/cfi/cfi_var.h>
43
44#include <arm/xscale/ixp425/ixp425reg.h>
45#include <arm/xscale/ixp425/ixp425var.h>
46
47static int
48cfi_ixp4xx_probe(device_t dev)
49{
50	struct cfi_softc *sc = device_get_softc(dev);
51	/*
52	 * NB: we assume the boot loader sets up EXP_TIMING_CS0_OFFSET
53	 * according to the flash on the board.  If it does not then it
54	 * can be done here.
55	 */
56	if (bootverbose) {
57		struct ixp425_softc *sa =
58		    device_get_softc(device_get_parent(dev));
59		device_printf(dev, "EXP_TIMING_CS0_OFFSET 0x%x\n",
60		    EXP_BUS_READ_4(sa, EXP_TIMING_CS0_OFFSET));
61	}
62	sc->sc_width = 2;		/* NB: don't probe interface width */
63	return cfi_probe(dev);
64}
65
66static device_method_t cfi_ixp4xx_methods[] = {
67	/* device interface */
68	DEVMETHOD(device_probe,		cfi_ixp4xx_probe),
69	DEVMETHOD(device_attach,	cfi_attach),
70	DEVMETHOD(device_detach,	cfi_detach),
71
72	DEVMETHOD_END
73};
74
75static driver_t cfi_ixp4xx_driver = {
76	cfi_driver_name,
77	cfi_ixp4xx_methods,
78	sizeof(struct cfi_softc),
79};
80DRIVER_MODULE(cfi, ixp, cfi_ixp4xx_driver, cfi_devclass, 0, 0);
81