diff options
author | Christophe Leroy <christophe.leroy@c-s.fr> | 2017-07-13 15:10:00 +0200 |
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committer | Tom Rini <trini@konsulko.com> | 2017-07-22 22:22:50 -0400 |
commit | 1e7cefef585c972ed40e016ba8739f5c5091254b (patch) | |
tree | e9323035b7cba5f696db3c99f2faae3a05749280 /arch/powerpc/cpu/mpc8xx/cache.c | |
parent | 36d3260756ec6277acf474e1c407fdd9a104f9cb (diff) |
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>
Diffstat (limited to 'arch/powerpc/cpu/mpc8xx/cache.c')
-rw-r--r-- | arch/powerpc/cpu/mpc8xx/cache.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8xx/cache.c b/arch/powerpc/cpu/mpc8xx/cache.c new file mode 100644 index 0000000000..f8cd5f5e33 --- /dev/null +++ b/arch/powerpc/cpu/mpc8xx/cache.c @@ -0,0 +1,49 @@ +/* + * (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); +} |