1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
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 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/bus.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/mutex.h>
34 #include <sys/rman.h>
35 #include <machine/bus.h>
36
37 #include <dev/ofw/openfirm.h>
38 #include <dev/ofw/ofw_bus.h>
39 #include <dev/ofw/ofw_bus_subr.h>
40
41 #include <dev/syscon/syscon.h>
42 #include <dev/fdt/simple_mfd.h>
43
44 static struct ofw_compat_data compat_data[] = {
45 {"marvell,cp110-icu", 1},
46 {NULL, 0}
47 };
48
49 static int
mv_cp110_icu_bus_probe(device_t dev)50 mv_cp110_icu_bus_probe(device_t dev)
51 {
52
53 if (!ofw_bus_status_okay(dev))
54 return (ENXIO);
55 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
56 return (ENXIO);
57
58 device_set_desc(dev, "Marvell Interrupt Consolidation Unit Bus");
59 return (BUS_PROBE_DEFAULT);
60 }
61
62 static device_method_t mv_cp110_icu_bus_methods[] = {
63 DEVMETHOD(device_probe, mv_cp110_icu_bus_probe),
64
65 DEVMETHOD_END
66 };
67
68 DEFINE_CLASS_1(mv_cp110_icu_bus, mv_cp110_icu_bus_driver,
69 mv_cp110_icu_bus_methods, sizeof(struct simple_mfd_softc),
70 simple_mfd_driver);
71
72 EARLY_DRIVER_MODULE(mv_cp110_icu_bus, simplebus, mv_cp110_icu_bus_driver, 0, 0,
73 BUS_PASS_INTERRUPT);
74 MODULE_VERSION(mv_cp110_icu_bus, 1);
75