scc_bfe_sbus.c revision 331722 
1/*-
2 * Copyright (c) 2004-2006 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: stable/11/sys/dev/scc/scc_bfe_sbus.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/ofw/ofw_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#define	SBUS_REGSHFT	1
46#define	SBUS_RCLK	307200
47
48static int
49scc_sbus_probe(device_t dev)
50{
51	struct scc_softc *sc;
52	const char *nm;
53
54	sc = device_get_softc(dev);
55	nm = ofw_bus_get_name(dev);
56	if (!strcmp(nm, "zs")) {
57		device_set_desc(dev, "Zilog Z8530 dual channel SCC");
58		sc->sc_class = &scc_z8530_class;
59		return (scc_bfe_probe(dev, SBUS_REGSHFT, SBUS_RCLK, 0));
60	}
61	return (ENXIO);
62}
63
64static int
65scc_sbus_attach(device_t dev)
66{
67
68	return (scc_bfe_attach(dev, 0));
69}
70
71static device_method_t scc_sbus_methods[] = {
72	/* Device interface */
73	DEVMETHOD(device_probe,		scc_sbus_probe),
74	DEVMETHOD(device_attach,	scc_sbus_attach),
75	DEVMETHOD(device_detach,	scc_bfe_detach),
76
77	DEVMETHOD(bus_alloc_resource,	scc_bus_alloc_resource),
78	DEVMETHOD(bus_release_resource,	scc_bus_release_resource),
79	DEVMETHOD(bus_get_resource,	scc_bus_get_resource),
80	DEVMETHOD(bus_read_ivar,	scc_bus_read_ivar),
81	DEVMETHOD(bus_setup_intr,	scc_bus_setup_intr),
82	DEVMETHOD(bus_teardown_intr,	scc_bus_teardown_intr),
83
84	DEVMETHOD_END
85};
86
87static driver_t scc_sbus_driver = {
88	scc_driver_name,
89	scc_sbus_methods,
90	sizeof(struct scc_softc),
91};
92
93DRIVER_MODULE(scc, fhc, scc_sbus_driver, scc_devclass, NULL, NULL);
94DRIVER_MODULE(scc, sbus, scc_sbus_driver, scc_devclass, NULL, NULL);
95