2 * Copyright 2015 Alexander Kabaev <kan@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * Ingenic JZ4780 NAND and External Memory Controller (NEMC) driver.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/module.h>
42 #include <sys/mutex.h>
43 #include <sys/resource.h>
46 #include <machine/bus.h>
48 #include <dev/fdt/fdt_common.h>
49 #include <dev/ofw/ofw_bus.h>
50 #include <dev/ofw/ofw_bus_subr.h>
52 struct jz4780_dme_softc {
54 struct resource *res[2];
57 static struct resource_spec jz4780_dme_spec[] = {
58 { SYS_RES_MEMORY, 0, RF_ACTIVE },
59 { SYS_RES_MEMORY, 1, RF_ACTIVE },
63 static int jz4780_dme_probe(device_t dev);
64 static int jz4780_dme_attach(device_t dev);
65 static int jz4780_dme_detach(device_t dev);
68 jz4780_dme_probe(device_t dev)
71 if (!ofw_bus_status_okay(dev))
74 if (!ofw_bus_is_compatible(dev, "davicom,dm9000"))
77 device_set_desc(dev, "Davicom DM9000C 10/100BaseTX");
79 return (BUS_PROBE_DEFAULT);
83 jz4780_dme_attach(device_t dev)
85 struct jz4780_dme_softc *sc = device_get_softc(dev);
89 if (bus_alloc_resources(dev, jz4780_dme_spec, sc->res)) {
90 device_printf(dev, "could not allocate resources for device\n");
98 jz4780_dme_detach(device_t dev)
100 struct jz4780_dme_softc *sc = device_get_softc(dev);
102 bus_release_resources(dev, jz4780_dme_spec, sc->res);
106 static device_method_t jz4780_dme_methods[] = {
107 /* Device interface */
108 DEVMETHOD(device_probe, jz4780_dme_probe),
109 DEVMETHOD(device_attach, jz4780_dme_attach),
110 DEVMETHOD(device_detach, jz4780_dme_detach),
115 static driver_t jz4780_dme_driver = {
118 sizeof(struct jz4780_dme_softc),
121 static devclass_t jz4780_dme_devclass;
123 DRIVER_MODULE(jz4780_dme, simplebus, jz4780_dme_driver,
124 jz4780_dme_devclass, 0, 0);