2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2006 Marcel Moolenaar
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
39 #include <dev/ofw/ofw_bus.h>
41 #include <machine/bus.h>
43 #include <machine/resource.h>
45 #include <dev/scc/scc_bfe.h>
47 #define MACIO_REGSHFT 4
48 #define MACIO_RCLK 230400
51 scc_macio_probe(device_t dev)
56 sc = device_get_softc(dev);
57 nm = ofw_bus_get_name(dev);
58 /* Attach to modern escc (channel shift 4 bits) */
59 if (!strcmp(nm, "escc")) {
60 device_set_desc(dev, "Zilog Z8530 dual channel SCC");
61 sc->sc_class = &scc_z8530_escc_class;
62 return (scc_bfe_probe(dev, MACIO_REGSHFT, MACIO_RCLK, 0));
68 scc_macio_attach(device_t dev)
71 return (scc_bfe_attach(dev, 3));
74 static device_method_t scc_macio_methods[] = {
75 /* Device interface */
76 DEVMETHOD(device_probe, scc_macio_probe),
77 DEVMETHOD(device_attach, scc_macio_attach),
78 DEVMETHOD(device_detach, scc_bfe_detach),
80 DEVMETHOD(bus_alloc_resource, scc_bus_alloc_resource),
81 DEVMETHOD(bus_release_resource, scc_bus_release_resource),
82 DEVMETHOD(bus_get_resource, scc_bus_get_resource),
83 DEVMETHOD(bus_read_ivar, scc_bus_read_ivar),
84 DEVMETHOD(bus_setup_intr, scc_bus_setup_intr),
85 DEVMETHOD(bus_teardown_intr, scc_bus_teardown_intr),
90 static driver_t scc_macio_driver = {
93 sizeof(struct scc_softc),
96 DRIVER_MODULE(scc, macio, scc_macio_driver, scc_devclass, NULL, NULL);