1/*
2 * Copyright 2017 Emmanuel Vadot <manu@freebsd.org>
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 are
7 * 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 AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD$");
30
31#include <sys/param.h>
32#include <sys/kernel.h>
33#include <sys/bus.h>
34#include <sys/module.h>
35#include <sys/queue.h>
36#include <sys/taskqueue.h>
37
38#include <machine/bus.h>
39
40#include <dev/mmc/bridge.h>
41#include <dev/mmc/mmc_fdt_helpers.h>
42
43#include <dev/ofw/ofw_bus_subr.h>
44
45#include <dev/mmc/host/dwmmc_var.h>
46
47#include "opt_mmccam.h"
48
49static struct ofw_compat_data compat_data[] = {
50	{"altr,socfpga-dw-mshc",	1},
51	{NULL,				0},
52};
53
54static int
55altera_dwmmc_probe(device_t dev)
56{
57
58	if (!ofw_bus_status_okay(dev))
59		return (ENXIO);
60
61	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
62		return (ENXIO);
63
64	device_set_desc(dev, "Synopsys DesignWare Mobile "
65	    "Storage Host Controller (Altera)");
66
67	return (BUS_PROBE_VENDOR);
68}
69
70static int
71altera_dwmmc_attach(device_t dev)
72{
73	struct dwmmc_softc *sc;
74	phandle_t root;
75
76	sc = device_get_softc(dev);
77	sc->hwtype = HWTYPE_ALTERA;
78
79	root = OF_finddevice("/");
80
81	if (ofw_bus_node_is_compatible(root, "altr,socfpga-stratix10")) {
82		sc->bus_hz = 24000000;
83		sc->use_pio = 1;
84	}
85
86	return (dwmmc_attach(dev));
87}
88
89static device_method_t altera_dwmmc_methods[] = {
90	/* bus interface */
91	DEVMETHOD(device_probe, altera_dwmmc_probe),
92	DEVMETHOD(device_attach, altera_dwmmc_attach),
93
94	DEVMETHOD_END
95};
96
97static devclass_t altera_dwmmc_devclass;
98
99DEFINE_CLASS_1(altera_dwmmc, altera_dwmmc_driver, altera_dwmmc_methods,
100    sizeof(struct dwmmc_softc), dwmmc_driver);
101
102DRIVER_MODULE(altera_dwmmc, simplebus, altera_dwmmc_driver,
103    altera_dwmmc_devclass, 0, 0);
104DRIVER_MODULE(altera_dwmmc, ofwbus, altera_dwmmc_driver, altera_dwmmc_devclass
105    , NULL, NULL);
106#ifndef MMCCAM
107MMC_DECLARE_BRIDGE(altera_dwmmc);
108#endif
109