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/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/hardware.h>
void icache_enable (void)
{
s32 i;
/* disable all cache bits */
CLR_REG( REG_SYSCFG, 0x3F);
/* 8KB cache, write enable */
SET_REG( REG_SYSCFG, CACHE_WRITE_BUFF | CACHE_MODE_01);
/* clear TAG RAM bits */
for ( i = 0; i < 256; i++)
PUT_REG( CACHE_TAG_RAM + 4*i, 0x00000000);
/* clear SET0 RAM */
for(i=0; i < 1024; i++)
PUT_REG( CACHE_SET0_RAM + 4*i, 0x00000000);
/* clear SET1 RAM */
for(i=0; i < 1024; i++)
PUT_REG( CACHE_SET1_RAM + 4*i, 0x00000000);
/* enable cache */
SET_REG( REG_SYSCFG, CACHE_ENABLE);
}
void icache_disable (void)
{
/* disable all cache bits */
CLR_REG( REG_SYSCFG, 0x3F);
}
int icache_status (void)
{
return GET_REG( REG_SYSCFG) & CACHE_ENABLE;
}
void dcache_enable (void)
{
/* we don't have seperate instruction/data caches */
icache_enable();
}
void dcache_disable (void)
{
/* we don't have seperate instruction/data caches */
icache_disable();
}
int dcache_status (void)
{
/* we don't have seperate instruction/data caches */
return icache_status();
}
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