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