scc_bfe_quicc.c revision 256281 
198944Sobrien/*-
298944Sobrien * Copyright (c) 2006 Marcel Moolenaar
398944Sobrien * All rights reserved.
498944Sobrien *
598944Sobrien * Redistribution and use in source and binary forms, with or without
698944Sobrien * modification, are permitted provided that the following conditions
798944Sobrien * are met:
898944Sobrien *
998944Sobrien * 1. Redistributions of source code must retain the above copyright
1098944Sobrien *    notice, this list of conditions and the following disclaimer.
1198944Sobrien * 2. Redistributions in binary form must reproduce the above copyright
1298944Sobrien *    notice, this list of conditions and the following disclaimer in the
13130803Smarcel *    documentation and/or other materials provided with the distribution.
14130803Smarcel *
1598944Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16130803Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17130803Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18130803Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19130803Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20130803Smarcel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21130803Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22130803Smarcel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23130803Smarcel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24130803Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25130803Smarcel */
26130803Smarcel
27130803Smarcel#include <sys/cdefs.h>
28130803Smarcel__FBSDID("$FreeBSD: stable/10/sys/dev/scc/scc_bfe_quicc.c 253900 2013-08-02 23:30:32Z marius $");
29130803Smarcel
30130803Smarcel#include <sys/param.h>
31130803Smarcel#include <sys/systm.h>
3298944Sobrien#include <sys/bus.h>
33130803Smarcel#include <sys/conf.h>
34130803Smarcel#include <sys/kernel.h>
35130803Smarcel#include <sys/module.h>
36130803Smarcel
37130803Smarcel#include <dev/quicc/quicc_bus.h>
38130803Smarcel
39130803Smarcel#include <machine/bus.h>
40130803Smarcel#include <sys/rman.h>
41130803Smarcel#include <machine/resource.h>
42130803Smarcel
43130803Smarcel#include <dev/scc/scc_bfe.h>
44130803Smarcel
45130803Smarcelstatic int
46130803Smarcelscc_quicc_probe(device_t dev)
47130803Smarcel{
48130803Smarcel	device_t parent;
49130803Smarcel	struct scc_softc *sc;
50130803Smarcel	uintptr_t devtype, rclk;
51130803Smarcel	int error;
52130803Smarcel
53130803Smarcel	parent = device_get_parent(dev);
5498944Sobrien
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
70static int
71scc_quicc_attach(device_t dev)
72{
73
74	return (scc_bfe_attach(dev, 0));
75}
76
77static 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
93static driver_t scc_quicc_driver = {
94	scc_driver_name,
95	scc_quicc_methods,
96	sizeof(struct scc_softc),
97};
98
99DRIVER_MODULE(scc, quicc, scc_quicc_driver, scc_devclass, NULL, NULL);
100