1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2007, Juniper Networks, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of any co-contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/bus.h>
38 #include <sys/conf.h>
39 #include <sys/kernel.h>
40 #include <sys/module.h>
41
42 #include <machine/bus.h>
43
44 #include <dev/cfi/cfi_var.h>
45 #include <dev/ofw/ofw_bus.h>
46 #include <dev/ofw/ofw_bus_subr.h>
47
48 static int cfi_fdt_probe(device_t);
49
50 static device_method_t cfi_fdt_methods[] = {
51 /* device interface */
52 DEVMETHOD(device_probe, cfi_fdt_probe),
53 DEVMETHOD(device_attach, cfi_attach),
54 DEVMETHOD(device_detach, cfi_detach),
55
56 DEVMETHOD_END
57 };
58
59 static driver_t cfi_fdt_driver = {
60 cfi_driver_name,
61 cfi_fdt_methods,
62 sizeof(struct cfi_softc),
63 };
64
65 DRIVER_MODULE (cfi, lbc, cfi_fdt_driver, 0, 0);
66 DRIVER_MODULE (cfi, simplebus, cfi_fdt_driver, 0, 0);
67
68 static int
69 cfi_fdt_probe(device_t dev)
70 {
71
72 if (!ofw_bus_status_okay(dev))
73 return (ENXIO);
74
75 if (!ofw_bus_is_compatible(dev, "cfi-flash"))
76 return (ENXIO);
77
78 return (cfi_probe(dev));
79 }
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