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/*
* U-boot - cache.c
*
* Copyright (c) 2005-2008 Analog Devices Inc.
*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <asm/blackfin.h>
#include <asm/mach-common/bits/mpu.h>
void flush_cache(unsigned long addr, unsigned long size)
{
/* no need to flush stuff in on chip memory (L1/L2/etc...) */
if (addr >= 0xE0000000)
return;
if (icache_status())
blackfin_icache_flush_range((void *)addr, (void *)(addr + size));
if (dcache_status())
blackfin_dcache_flush_range((void *)addr, (void *)(addr + size));
}
void icache_enable(void)
{
bfin_write_IMEM_CONTROL(IMC | ENICPLB);
SSYNC();
}
void icache_disable(void)
{
bfin_write_IMEM_CONTROL(0);
SSYNC();
}
int icache_status(void)
{
return bfin_read_IMEM_CONTROL() & ENICPLB;
}
void dcache_enable(void)
{
bfin_write_DMEM_CONTROL(ACACHE_BCACHE | ENDCPLB | PORT_PREF0);
SSYNC();
}
void dcache_disable(void)
{
bfin_write_DMEM_CONTROL(0);
SSYNC();
}
int dcache_status(void)
{
return bfin_read_DMEM_CONTROL() & ENDCPLB;
}
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