xref: /freebsd/sys/dev/cfi/cfi_bus_fdt.c (revision aa0a1e58)
1 /*-
2  * Copyright (c) 2007, Juniper Networks, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the author nor the names of any co-contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/bus.h>
36 #include <sys/conf.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 
40 #include <machine/bus.h>
41 
42 #include <dev/cfi/cfi_var.h>
43 #include <dev/ofw/ofw_bus.h>
44 #include <dev/ofw/ofw_bus_subr.h>
45 
46 static int cfi_fdt_probe(device_t);
47 
48 static device_method_t cfi_fdt_methods[] = {
49 	/* device interface */
50 	DEVMETHOD(device_probe,		cfi_fdt_probe),
51 	DEVMETHOD(device_attach,	cfi_attach),
52 	DEVMETHOD(device_detach,	cfi_detach),
53 
54 	{0, 0}
55 };
56 
57 static driver_t cfi_fdt_driver = {
58 	cfi_driver_name,
59 	cfi_fdt_methods,
60 	sizeof(struct cfi_softc),
61 };
62 
63 DRIVER_MODULE (cfi, lbc, cfi_fdt_driver, cfi_devclass, 0, 0);
64 
65 static int
66 cfi_fdt_probe(device_t dev)
67 {
68 
69 	if (!ofw_bus_is_compatible(dev, "cfi-flash"))
70 		return (ENXIO);
71 
72 	return (cfi_probe(dev));
73 }
74