1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2006 Marcel Moolenaar
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 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
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, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/bus.h>
32 #include <sys/conf.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35
36 #include <dev/quicc/quicc_bus.h>
37
38 #include <machine/bus.h>
39 #include <sys/rman.h>
40 #include <machine/resource.h>
41
42 #include <dev/scc/scc_bfe.h>
43
44 static int
scc_quicc_probe(device_t dev)45 scc_quicc_probe(device_t dev)
46 {
47 device_t parent;
48 struct scc_softc *sc;
49 uintptr_t devtype, rclk;
50 int error;
51
52 parent = device_get_parent(dev);
53
54 error = BUS_READ_IVAR(parent, dev, QUICC_IVAR_DEVTYPE, &devtype);
55 if (error)
56 return (error);
57 if (devtype != QUICC_DEVTYPE_SCC)
58 return (ENXIO);
59
60 device_set_desc(dev, "QUICC quad channel SCC");
61
62 sc = device_get_softc(dev);
63 sc->sc_class = &scc_quicc_class;
64 if (BUS_READ_IVAR(parent, dev, QUICC_IVAR_BRGCLK, &rclk))
65 rclk = 0;
66 return (scc_bfe_probe(dev, 0, rclk, 0));
67 }
68
69 static int
scc_quicc_attach(device_t dev)70 scc_quicc_attach(device_t dev)
71 {
72
73 return (scc_bfe_attach(dev, 0));
74 }
75
76 static device_method_t scc_quicc_methods[] = {
77 /* Device interface */
78 DEVMETHOD(device_probe, scc_quicc_probe),
79 DEVMETHOD(device_attach, scc_quicc_attach),
80 DEVMETHOD(device_detach, scc_bfe_detach),
81
82 DEVMETHOD(bus_alloc_resource, scc_bus_alloc_resource),
83 DEVMETHOD(bus_release_resource, scc_bus_release_resource),
84 DEVMETHOD(bus_get_resource, scc_bus_get_resource),
85 DEVMETHOD(bus_read_ivar, scc_bus_read_ivar),
86 DEVMETHOD(bus_setup_intr, scc_bus_setup_intr),
87 DEVMETHOD(bus_teardown_intr, scc_bus_teardown_intr),
88
89 DEVMETHOD_END
90 };
91
92 static driver_t scc_quicc_driver = {
93 scc_driver_name,
94 scc_quicc_methods,
95 sizeof(struct scc_softc),
96 };
97
98 DRIVER_MODULE(scc, quicc, scc_quicc_driver, NULL, NULL);
99