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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.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>
void flush_cache (ulong start_addr, ulong size)
{
#ifndef CONFIG_5xx
ulong addr, end_addr = start_addr + size;
if (CFG_CACHELINE_SIZE) {
addr = start_addr & (CFG_CACHELINE_SIZE - 1);
for (addr = start_addr;
addr < end_addr;
addr += CFG_CACHELINE_SIZE) {
asm ("dcbst 0,%0": :"r" (addr));
}
asm ("sync"); /* Wait for all dcbst to complete on bus */
for (addr = start_addr;
addr < end_addr;
addr += CFG_CACHELINE_SIZE) {
asm ("icbi 0,%0": :"r" (addr));
}
}
asm ("sync"); /* Always flush prefetch queue in any case */
asm ("isync");
#endif
}
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