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[FreeBSD/releng/10.0.git] / sys / dev / scc / scc_bfe_quicc.c
1 /*-
2  * Copyright (c) 2006 Marcel Moolenaar
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  *
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/module.h>
36
37 #include <dev/quicc/quicc_bus.h>
38
39 #include <machine/bus.h>
40 #include <sys/rman.h>
41 #include <machine/resource.h>
42
43 #include <dev/scc/scc_bfe.h>
44
45 static int
46 scc_quicc_probe(device_t dev)
47 {
48         device_t parent;
49         struct scc_softc *sc;
50         uintptr_t devtype, rclk;
51         int error;
52
53         parent = device_get_parent(dev);
54
55         error = BUS_READ_IVAR(parent, dev, QUICC_IVAR_DEVTYPE, &devtype);
56         if (error)
57                 return (error);
58         if (devtype != QUICC_DEVTYPE_SCC)
59                 return (ENXIO);
60
61         device_set_desc(dev, "QUICC quad channel SCC");
62
63         sc = device_get_softc(dev);
64         sc->sc_class = &scc_quicc_class;
65         if (BUS_READ_IVAR(parent, dev, QUICC_IVAR_BRGCLK, &rclk))
66                 rclk = 0;
67         return (scc_bfe_probe(dev, 0, rclk, 0));
68 }
69
70 static int
71 scc_quicc_attach(device_t dev)
72 {
73
74         return (scc_bfe_attach(dev, 0));
75 }
76
77 static device_method_t scc_quicc_methods[] = {
78         /* Device interface */
79         DEVMETHOD(device_probe,         scc_quicc_probe),
80         DEVMETHOD(device_attach,        scc_quicc_attach),
81         DEVMETHOD(device_detach,        scc_bfe_detach),
82
83         DEVMETHOD(bus_alloc_resource,   scc_bus_alloc_resource),
84         DEVMETHOD(bus_release_resource, scc_bus_release_resource),
85         DEVMETHOD(bus_get_resource,     scc_bus_get_resource),
86         DEVMETHOD(bus_read_ivar,        scc_bus_read_ivar),
87         DEVMETHOD(bus_setup_intr,       scc_bus_setup_intr),
88         DEVMETHOD(bus_teardown_intr,    scc_bus_teardown_intr),
89
90         DEVMETHOD_END
91 };
92
93 static driver_t scc_quicc_driver = {
94         scc_driver_name,
95         scc_quicc_methods,
96         sizeof(struct scc_softc),
97 };
98
99 DRIVER_MODULE(scc, quicc, scc_quicc_driver, scc_devclass, NULL, NULL);