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/*-
* Copyright 2013-2015 John Wehle <john@feith.com>
* All rights reserved.
*
* Based on omap4_l2cache.c by Olivier Houchard
*
* 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.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/bus.h>
#include <machine/pl310.h>
void
platform_pl310_init(struct pl310_softc *sc)
{
uint32_t aux;
aux = pl310_read4(sc, PL310_AUX_CTRL);
/*
* The Amlogic Linux platform code enables via AUX:
*
* Early BRESP
* Full Line of Zero (which must match processor setting)
* Data Prefetch
*
* and additionally on the m6 enables:
*
* Instruction Prefetch
*
* For the moment we only enable Data Prefetch ...
* further refinements can happen as things mature.
*/
/*
* Disable instruction prefetch.
*/
aux &= ~AUX_CTRL_INSTR_PREFETCH;
/*
* Enable data prefetch.
*/
aux |= AUX_CTRL_DATA_PREFETCH;
pl310_write4(sc, PL310_AUX_CTRL, aux);
}
void
platform_pl310_write_ctrl(struct pl310_softc *sc, uint32_t val)
{
pl310_write4(sc, PL310_CTRL, val);
}
void
platform_pl310_write_debug(struct pl310_softc *sc, uint32_t val)
{
pl310_write4(sc, PL310_DEBUG_CTRL, val);
}
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