3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 /* for now: just dummy functions to satisfy the linker */
28 void __flush_cache(unsigned long start, unsigned long size)
30 #if defined(CONFIG_OMAP2420) || defined(CONFIG_ARM1136)
31 void arm1136_cache_flush(void);
33 arm1136_cache_flush();
35 #ifdef CONFIG_ARM926EJS
37 /* test and clean, page 2-23 of arm926ejs manual */
38 "0: mrc p15, 0, r15, c7, c10, 3\n\t" "bne 0b\n"
39 /* flush write buffer as well (page 2-22) */
40 "mcr p15, 0, %0, c7, c10, 4" : : "r"(0) : "memory"
45 void flush_cache(unsigned long start, unsigned long size)
46 __attribute__((weak, alias("__flush_cache")));
49 * Default implementation:
50 * do a range flush for the entire range
52 void __flush_dcache_all(void)
56 void flush_dcache_all(void)
57 __attribute__((weak, alias("__flush_dcache_all")));
61 * Default implementation of enable_caches()
62 * Real implementation should be in platform code
64 void __enable_caches(void)
66 puts("WARNING: Caches not enabled\n");
68 void enable_caches(void)
69 __attribute__((weak, alias("__enable_caches")));