u-boot/arch/powerpc/cpu/mpc8xx/cache.c
Christophe Leroy 1e7cefef58 powerpc, 8xx: Move cache function into C files
Avoid unnecessary assembly functions when they can easily be written
in C.

Also remove dc_read() as it is nowhere referenced

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-22 22:22:50 -04:00

49 lines
801 B
C

/*
* (C) Copyright 2017
* Christophe Leroy, CS Systemes d'Information, christophe.leroy@c-s.fr
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/processor.h>
#include <asm/ppc.h>
#include <asm/io.h>
#include <asm/mmu.h>
int icache_status(void)
{
return !!(mfspr(IC_CST) & IDC_ENABLED);
}
void icache_enable(void)
{
sync();
mtspr(IC_CST, IDC_INVALL);
mtspr(IC_CST, IDC_ENABLE);
}
void icache_disable(void)
{
sync();
mtspr(IC_CST, IDC_DISABLE);
}
int dcache_status(void)
{
return !!(mfspr(IC_CST) & IDC_ENABLED);
}
void dcache_enable(void)
{
mtspr(MD_CTR, MD_RESETVAL); /* Set cache mode with MMU off */
mtspr(DC_CST, IDC_INVALL);
mtspr(DC_CST, IDC_ENABLE);
}
void dcache_disable(void)
{
sync();
mtspr(DC_CST, IDC_DISABLE);
mtspr(DC_CST, IDC_INVALL);
}