bfb92761dc
Allwinner H3 and H5 share many internal components, that's why they can use the same drivers. This patch adds the compatible strings to enable clock drivers probing on Allwinner NanoPI NEO2 device. Tested on: NanoPi NEO2 (by submitter), OrangePi PC2 (by manu) Submitted by: Manuel Stühn (freebsdnewbie@freenet.de) MFC after: 2 months Differential Revision: https://reviews.freebsd.org/D20069
87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2018 Kyle Evans <kevans@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Allwinner syscon driver
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <machine/bus.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/extres/syscon/syscon.h>
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#include <dev/extres/syscon/syscon_generic.h>
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static struct ofw_compat_data compat_data[] = {
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{"allwinner,sun50i-a64-system-controller", 1},
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{"allwinner,sun50i-a64-system-control", 1},
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{"allwinner,sun8i-a83t-system-controller", 1},
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{"allwinner,sun8i-h3-system-controller", 1},
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{"allwinner,sun8i-h3-system-control", 1},
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{"allwinner,sun50i-h5-system-control", 1},
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{NULL, 0}
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};
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static int
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aw_syscon_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
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return (ENXIO);
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device_set_desc(dev, "Allwinner syscon");
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return (BUS_PROBE_DEFAULT);
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}
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static device_method_t aw_syscon_methods[] = {
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DEVMETHOD(device_probe, aw_syscon_probe),
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DEVMETHOD_END
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};
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DEFINE_CLASS_1(aw_syscon, aw_syscon_driver, aw_syscon_methods,
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sizeof(struct syscon_generic_softc), syscon_generic_driver);
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static devclass_t aw_syscon_devclass;
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/* aw_syscon needs to attach prior to if_awg */
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EARLY_DRIVER_MODULE(aw_syscon, simplebus, aw_syscon_driver, aw_syscon_devclass,
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0, 0, BUS_PASS_SUPPORTDEV + BUS_PASS_ORDER_MIDDLE);
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MODULE_VERSION(aw_syscon, 1);
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