/* * This file is part of the coreboot project. * * Copyright 2013 Google Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * cache.c: Cache maintenance routines for ARMv7-A and ARMv7-R * * Reference: ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition */ #include <stdint.h> #include <arch/cache.h> void tlb_invalidate_all(void) { } void dcache_clean_all(void) { } void dcache_clean_invalidate_all(void) { } void dcache_invalidate_all(void) { } unsigned int dcache_line_bytes(void) { /* * TODO: Implement this correctly. For now we just return a * reasonable value. It was added during Nyan development and * may be used in bootblock code. It matters only if dcache is * turned on. */ return 64; } void dcache_clean_by_mva(void const *addr, size_t len) { } void dcache_clean_invalidate_by_mva(void const *addr, size_t len) { } void dcache_invalidate_by_mva(void const *addr, size_t len) { } void dcache_mmu_disable(void) { } void dcache_mmu_enable(void) { } void cache_sync_instructions(void) { }