/* * (C) Copyright 2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ /* for now: just dummy functions to satisfy the linker */ #include void __flush_cache(unsigned long start, unsigned long size) { #if defined(CONFIG_OMAP2420) || defined(CONFIG_ARM1136) void arm1136_cache_flush(void); arm1136_cache_flush(); #endif #ifdef CONFIG_ARM926EJS /* test and clean, page 2-23 of arm926ejs manual */ asm("0: mrc p15, 0, r15, c7, c10, 3\n\t" "bne 0b\n" : : : "memory"); /* disable write buffer as well (page 2-22) */ asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0)); #endif return; } void flush_cache(unsigned long start, unsigned long size) __attribute__((weak, alias("__flush_cache"))); /* * Default implementation: * do a range flush for the entire range */ void __flush_dcache_all(void) { flush_cache(0, ~0); } void flush_dcache_all(void) __attribute__((weak, alias("__flush_dcache_all"))); /* * Default implementation of enable_caches() * Real implementation should be in platform code */ void __enable_caches(void) { puts("WARNING: Caches not enabled\n"); } void enable_caches(void) __attribute__((weak, alias("__enable_caches")));