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: releng/11.2/sys/dev/scc/scc_bfe_quicc.c 331722 2018-03-29 02:50:57Z eadler $");
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);
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