xref: /freebsd/sys/dev/smc/if_smc_fdt.c (revision 1fb62fb074788ca4713551be09d6569966a3abee)
1 /*-
2  * Copyright (c) 2008 Benno Rice
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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/param.h>
31 #include <sys/bus.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
34 #include <sys/socket.h>
35 #include <sys/systm.h>
36 #include <sys/taskqueue.h>
37 
38 #include <machine/bus.h>
39 #include <machine/resource.h>
40 
41 #include <net/ethernet.h>
42 #include <net/if.h>
43 #include <net/if_arp.h>
44 #include <net/if_media.h>
45 
46 #include <dev/smc/if_smcvar.h>
47 
48 #include <dev/mii/mii.h>
49 #include <dev/mii/miivar.h>
50 
51 #include <dev/fdt/fdt_common.h>
52 #include <dev/ofw/openfirm.h>
53 #include <dev/ofw/ofw_bus.h>
54 #include <dev/ofw/ofw_bus_subr.h>
55 
56 #include "miibus_if.h"
57 
58 static int		smc_fdt_probe(device_t);
59 static int		smc_fdt_attach(device_t);
60 static int		smc_fdt_detach(device_t);
61 
62 static int
63 smc_fdt_probe(device_t dev)
64 {
65 	struct	smc_softc *sc;
66 
67 	if (!ofw_bus_status_okay(dev))
68 		return (ENXIO);
69 
70 	if (ofw_bus_is_compatible(dev, "smsc,lan91c111")) {
71 		sc = device_get_softc(dev);
72 		sc->smc_usemem = 1;
73 
74 		if (smc_probe(dev) != 0) {
75 			return (ENXIO);
76 		}
77 
78 		return (0);
79 	}
80 
81 	return (ENXIO);
82 }
83 
84 static int
85 smc_fdt_attach(device_t dev)
86 {
87 	int	err;
88  	struct	smc_softc *sc;
89 
90 	sc = device_get_softc(dev);
91 
92 	err = smc_attach(dev);
93 	if (err) {
94 		return (err);
95 	}
96 
97 	return (0);
98 }
99 
100 static int
101 smc_fdt_detach(device_t dev)
102 {
103 
104 	smc_detach(dev);
105 
106 	return (0);
107 }
108 
109 static device_method_t smc_fdt_methods[] = {
110 	/* Device interface */
111 	DEVMETHOD(device_probe,		smc_fdt_probe),
112 	DEVMETHOD(device_attach,	smc_fdt_attach),
113 	DEVMETHOD(device_detach,	smc_fdt_detach),
114 
115 	/* MII interface */
116 	DEVMETHOD(miibus_readreg,	smc_miibus_readreg),
117 	DEVMETHOD(miibus_writereg,	smc_miibus_writereg),
118 	DEVMETHOD(miibus_statchg,	smc_miibus_statchg),
119 
120 	{ 0, 0 }
121 };
122 
123 static driver_t smc_fdt_driver = {
124 	"smc",
125 	smc_fdt_methods,
126 	sizeof(struct smc_softc),
127 };
128 
129 extern devclass_t smc_devclass;
130 
131 DRIVER_MODULE(smc, simplebus, smc_fdt_driver, smc_devclass, 0, 0);
132 DRIVER_MODULE(miibus, smc, miibus_driver, miibus_devclass, 0, 0);
133 MODULE_DEPEND(smc, fdt, 1, 1, 1);
134 MODULE_DEPEND(smc, ether, 1, 1, 1);
135 MODULE_DEPEND(smc, miibus, 1, 1, 1);
136