From 1e7cefef585c972ed40e016ba8739f5c5091254b Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Thu, 13 Jul 2017 15:10:00 +0200 Subject: 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 --- arch/powerpc/cpu/mpc8xx/cache.c | 49 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 arch/powerpc/cpu/mpc8xx/cache.c (limited to 'arch/powerpc/cpu/mpc8xx/cache.c') 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 +#include +#include +#include +#include + +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); +} -- cgit