105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
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/*-
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* Copyright (c) 2012 Semihalf.
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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
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.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 <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <contrib/ncsw/inc/ncsw_ext.h>
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#include <contrib/ncsw/inc/enet_ext.h>
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#include "fman.h"
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#define FFMAN_DEVSTR "Freescale Frame Manager"
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static int fman_fdt_probe(device_t dev);
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static device_method_t fman_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, fman_fdt_probe),
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DEVMETHOD(device_attach, fman_attach),
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DEVMETHOD(device_detach, fman_detach),
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DEVMETHOD(device_shutdown, fman_shutdown),
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DEVMETHOD(device_suspend, fman_suspend),
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DEVMETHOD(device_resume, fman_resume),
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{ 0, 0 }
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};
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static driver_t fman_driver = {
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"fman",
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fman_methods,
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sizeof(struct fman_softc),
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};
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static devclass_t fman_devclass;
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EARLY_DRIVER_MODULE(fman, simplebus, fman_driver, fman_devclass, 0, 0,
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BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
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static int
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fman_fdt_probe(device_t dev)
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{
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if (!ofw_bus_is_compatible(dev, "fsl,fman"))
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return (ENXIO);
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device_set_desc(dev, FFMAN_DEVSTR);
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return (BUS_PROBE_DEFAULT);
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}
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uint32_t
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fman_get_clock(struct fman_softc *sc)
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{
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device_t dev;
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phandle_t node;
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pcell_t fman_clock;
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dev = sc->dev;
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node = ofw_bus_get_node(dev);
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if ((OF_getprop(node, "clock-frequency", &fman_clock,
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sizeof(fman_clock)) <= 0) || (fman_clock == 0)) {
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device_printf(dev, "could not acquire correct frequency "
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"from DTS\n");
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return (0);
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}
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return ((uint32_t)fman_clock);
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}
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