105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/*
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* Copyright 2015 Andrew Turner.
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* All rights reserved.
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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 are
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* met:
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*
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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
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <machine/bus.h>
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#include <dev/mmc/bridge.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/mmc/host/dwmmc_var.h>
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#include "opt_mmccam.h"
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static device_probe_t hisi_dwmmc_probe;
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static device_attach_t hisi_dwmmc_attach;
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static int
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hisi_dwmmc_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_is_compatible(dev, "hisilicon,hi6220-dw-mshc"))
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return (ENXIO);
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device_set_desc(dev, "Synopsys DesignWare Mobile "
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"Storage Host Controller (HiSilicon)");
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return (BUS_PROBE_VENDOR);
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}
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static int
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hisi_dwmmc_attach(device_t dev)
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{
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struct dwmmc_softc *sc;
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sc = device_get_softc(dev);
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sc->hwtype = HWTYPE_HISILICON;
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/* TODO: Calculate this from a clock driver */
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sc->bus_hz = 24000000; /* 24MHz */
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/*
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* ARM64TODO: This is likely because we lack support for
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* DMA when the controller is not cache-coherent on arm64.
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*/
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sc->use_pio = 1;
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sc->desc_count = 1;
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return (dwmmc_attach(dev));
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}
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static device_method_t hisi_dwmmc_methods[] = {
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/* bus interface */
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DEVMETHOD(device_probe, hisi_dwmmc_probe),
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DEVMETHOD(device_attach, hisi_dwmmc_attach),
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DEVMETHOD_END
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};
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static devclass_t hisi_dwmmc_devclass;
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DEFINE_CLASS_1(hisi_dwmmc, hisi_dwmmc_driver, hisi_dwmmc_methods,
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sizeof(struct dwmmc_softc), dwmmc_driver);
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DRIVER_MODULE(hisi_dwmmc, simplebus, hisi_dwmmc_driver,
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hisi_dwmmc_devclass, 0, 0);
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DRIVER_MODULE(hisi_dwmmc, ofwbus, hisi_dwmmc_driver, hisi_dwmmc_devclass
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, NULL, NULL);
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#ifndef MMCCAM
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MMC_DECLARE_BRIDGE(hisi_dwmmc);
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#endif
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