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