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/*-
* Copyright (c) 2009-2010 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Semihalf under sponsorship from
* the FreeBSD Foundation.
*
* 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/module.h>
#include <sys/bus.h>
#include <machine/intr_machdep.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/openfirm.h>
#include "ofw_bus_if.h"
#include "fdt_common.h"
static void
fdt_fixup_busfreq(phandle_t root)
{
phandle_t sb, cpus, child;
pcell_t freq;
/*
* Do a strict check so as to skip non-SOC nodes, which also claim
* simple-bus compatibility such as eLBC etc.
*/
if ((sb = fdt_find_compatible(root, "simple-bus", 1)) == 0)
return;
/*
* This fixup uses /cpus/ bus-frequency prop value to set simple-bus
* bus-frequency property.
*/
if ((cpus = OF_finddevice("/cpus")) == -1)
return;
if ((child = OF_child(cpus)) == 0)
return;
if (OF_getprop(child, "bus-frequency", (void *)&freq,
sizeof(freq)) <= 0)
return;
OF_setprop(sb, "bus-frequency", (void *)&freq, sizeof(freq));
}
struct fdt_fixup_entry fdt_fixup_table[] = {
{ "fsl,MPC8572DS", &fdt_fixup_busfreq },
{ "MPC8555CDS", &fdt_fixup_busfreq },
{ NULL, NULL }
};
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