1/*-
2 * Copyright (c) 2012 Semihalf.
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 *
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
24 * SUCH DAMAGE.
25 */
26
27#include <sys/param.h>
28#include <sys/systm.h>
29#include <sys/kernel.h>
30#include <sys/bus.h>
31#include <sys/module.h>
32
33#include <dev/fdt/simplebus.h>
34#include <dev/ofw/ofw_bus.h>
35#include <dev/ofw/ofw_bus_subr.h>
36
37#include <contrib/ncsw/inc/ncsw_ext.h>
38#include <contrib/ncsw/inc/enet_ext.h>
39
40#include "fman.h"
41
42#define	FFMAN_DEVSTR	"Freescale Frame Manager"
43
44static int	fman_fdt_probe(device_t dev);
45
46static device_method_t fman_methods[] = {
47	/* Device interface */
48	DEVMETHOD(device_probe,		fman_fdt_probe),
49	DEVMETHOD(device_attach,	fman_attach),
50	DEVMETHOD(device_detach,	fman_detach),
51
52	DEVMETHOD(device_shutdown,	fman_shutdown),
53	DEVMETHOD(device_suspend,	fman_suspend),
54	DEVMETHOD(device_resume,	fman_resume_dev),
55
56	DEVMETHOD(bus_alloc_resource,	fman_alloc_resource),
57	DEVMETHOD(bus_activate_resource,	fman_activate_resource),
58	DEVMETHOD(bus_release_resource,	fman_release_resource),
59	{ 0, 0 }
60};
61
62DEFINE_CLASS_1(fman, fman_driver, fman_methods,
63    sizeof(struct fman_softc), simplebus_driver);
64EARLY_DRIVER_MODULE(fman, simplebus, fman_driver, 0, 0,
65    BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
66
67
68static int
69fman_fdt_probe(device_t dev)
70{
71
72	if (!ofw_bus_status_okay(dev))
73		return (ENXIO);
74
75	if (!ofw_bus_is_compatible(dev, "fsl,fman"))
76		return (ENXIO);
77
78	device_set_desc(dev, FFMAN_DEVSTR);
79
80	return (BUS_PROBE_DEFAULT);
81}
82
83uint32_t
84fman_get_clock(struct fman_softc *sc)
85{
86	device_t dev;
87	phandle_t node;
88	pcell_t fman_clock;
89
90	dev = sc->sc_base.dev;
91	node = ofw_bus_get_node(dev);
92
93	if ((OF_getprop(node, "clock-frequency", &fman_clock,
94	    sizeof(fman_clock)) <= 0) || (fman_clock == 0)) {
95		device_printf(dev, "could not acquire correct frequency "
96		    "from DTS\n");
97
98		return (0);
99	}
100
101	return ((uint32_t)fman_clock);
102}
103
104