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1 | /* |
2 | * (C) Copyright 2002 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <common.h> | |
9b94ac61 | 25 | #include <asm/cache.h> |
0db5bca8 | 26 | |
affae2bf WD |
27 | void flush_cache (ulong start_addr, ulong size) |
28 | { | |
0db5bca8 | 29 | #ifndef CONFIG_5xx |
affae2bf WD |
30 | ulong addr, end_addr = start_addr + size; |
31 | ||
32 | if (CFG_CACHELINE_SIZE) { | |
33 | addr = start_addr & (CFG_CACHELINE_SIZE - 1); | |
34 | for (addr = start_addr; | |
35 | addr < end_addr; | |
36 | addr += CFG_CACHELINE_SIZE) { | |
37 | asm ("dcbst 0,%0": :"r" (addr)); | |
38 | } | |
39 | asm ("sync"); /* Wait for all dcbst to complete on bus */ | |
40 | ||
41 | for (addr = start_addr; | |
42 | addr < end_addr; | |
43 | addr += CFG_CACHELINE_SIZE) { | |
44 | asm ("icbi 0,%0": :"r" (addr)); | |
45 | } | |
46 | } | |
47 | asm ("sync"); /* Always flush prefetch queue in any case */ | |
48 | asm ("isync"); | |
0db5bca8 | 49 | #endif |
affae2bf | 50 | } |