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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2018 Kyle Evans <kevans@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Allwinner syscon driver
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/extres/syscon/syscon.h>
#include <dev/extres/syscon/syscon_generic.h>
static struct ofw_compat_data compat_data[] = {
{"allwinner,sun50i-a64-system-controller", 1},
{"allwinner,sun50i-a64-system-control", 1},
{"allwinner,sun8i-a83t-system-controller", 1},
{"allwinner,sun8i-h3-system-controller", 1},
{"allwinner,sun8i-h3-system-control", 1},
{"allwinner,sun50i-h5-system-control", 1},
{NULL, 0}
};
static int
aw_syscon_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
return (ENXIO);
device_set_desc(dev, "Allwinner syscon");
return (BUS_PROBE_DEFAULT);
}
static device_method_t aw_syscon_methods[] = {
DEVMETHOD(device_probe, aw_syscon_probe),
DEVMETHOD_END
};
DEFINE_CLASS_1(aw_syscon, aw_syscon_driver, aw_syscon_methods,
sizeof(struct syscon_generic_softc), syscon_generic_driver);
/* aw_syscon needs to attach prior to if_awg */
EARLY_DRIVER_MODULE(aw_syscon, simplebus, aw_syscon_driver, 0, 0,
BUS_PASS_SCHEDULER + BUS_PASS_ORDER_LAST);
MODULE_VERSION(aw_syscon, 1);
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