quicc_bfe_fdt.c revision 331722 
1/*-
2 * Copyright (c) 2006 Juniper Networks.
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 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * 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/cdefs.h>
30__FBSDID("$FreeBSD: stable/11/sys/dev/quicc/quicc_bfe_fdt.c 331722 2018-03-29 02:50:57Z eadler $");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/bus.h>
35#include <sys/conf.h>
36#include <sys/kernel.h>
37#include <sys/lock.h>
38#include <sys/malloc.h>
39#include <sys/module.h>
40#include <sys/rman.h>
41#include <sys/tty.h>
42#include <machine/bus.h>
43
44#include <dev/ofw/ofw_bus.h>
45#include <dev/ofw/ofw_bus_subr.h>
46#include <dev/quicc/quicc_bfe.h>
47
48static int quicc_fdt_probe(device_t dev);
49
50static device_method_t quicc_fdt_methods[] = {
51	/* Device interface */
52	DEVMETHOD(device_probe,		quicc_fdt_probe),
53	DEVMETHOD(device_attach,	quicc_bfe_attach),
54	DEVMETHOD(device_detach,	quicc_bfe_detach),
55
56	DEVMETHOD(bus_alloc_resource,	quicc_bus_alloc_resource),
57	DEVMETHOD(bus_release_resource,	quicc_bus_release_resource),
58	DEVMETHOD(bus_get_resource,	quicc_bus_get_resource),
59	DEVMETHOD(bus_read_ivar,	quicc_bus_read_ivar),
60	DEVMETHOD(bus_setup_intr,	quicc_bus_setup_intr),
61	DEVMETHOD(bus_teardown_intr,	quicc_bus_teardown_intr),
62
63	DEVMETHOD_END
64};
65
66static driver_t quicc_fdt_driver = {
67	quicc_driver_name,
68	quicc_fdt_methods,
69	sizeof(struct quicc_softc),
70};
71
72static int
73quicc_fdt_probe(device_t dev)
74{
75	phandle_t par;
76	pcell_t clock;
77
78	if (!ofw_bus_status_okay(dev))
79		return (ENXIO);
80
81	if (!ofw_bus_is_compatible(dev, "fsl,cpm2"))
82		return (ENXIO);
83
84	par = OF_parent(ofw_bus_get_node(dev));
85	if (OF_getprop(par, "bus-frequency", &clock, sizeof(clock)) <= 0)
86		clock = 0;
87
88	return (quicc_bfe_probe(dev, (uintptr_t)clock));
89}
90
91DRIVER_MODULE(quicc, simplebus, quicc_fdt_driver, quicc_devclass, 0, 0);
92