mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 07:57:21 +00:00
90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
/*
|
|
* (C) Copyright 2004
|
|
* DAVE Srl
|
|
* http://www.dave-tech.it
|
|
* http://www.wawnet.biz
|
|
* mailto:info@wawnet.biz
|
|
*
|
|
* 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 <command.h>
|
|
#include <asm/hardware.h>
|
|
|
|
static void s3c44b0_flush_cache(void)
|
|
{
|
|
volatile int i;
|
|
/* flush cycle */
|
|
for(i=0x10002000;i<0x10004800;i+=16)
|
|
{
|
|
*((int *)i)=0x0;
|
|
}
|
|
}
|
|
|
|
void icache_enable (void)
|
|
{
|
|
ulong reg;
|
|
|
|
s3c44b0_flush_cache();
|
|
|
|
/*
|
|
Init cache
|
|
Non-cacheable area (everything outside RAM)
|
|
0x0000:0000 - 0x0C00:0000
|
|
*/
|
|
NCACHBE0 = 0xC0000000;
|
|
NCACHBE1 = 0x00000000;
|
|
|
|
/*
|
|
Enable chache
|
|
*/
|
|
reg = SYSCFG;
|
|
reg |= 0x00000006; /* 8kB */
|
|
SYSCFG = reg;
|
|
}
|
|
|
|
void icache_disable (void)
|
|
{
|
|
ulong reg;
|
|
|
|
reg = SYSCFG;
|
|
reg &= ~0x00000006; /* 8kB */
|
|
SYSCFG = reg;
|
|
}
|
|
|
|
int icache_status (void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void dcache_enable (void)
|
|
{
|
|
icache_enable();
|
|
}
|
|
|
|
void dcache_disable (void)
|
|
{
|
|
icache_disable();
|
|
}
|
|
|
|
int dcache_status (void)
|
|
{
|
|
return dcache_status();
|
|
}
|