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affae2bf WD |
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> |
138105ef | 26 | #include <watchdog.h> |
0db5bca8 | 27 | |
affae2bf WD |
28 | void flush_cache (ulong start_addr, ulong size) |
29 | { | |
0db5bca8 | 30 | #ifndef CONFIG_5xx |
affae2bf WD |
31 | ulong addr, end_addr = start_addr + size; |
32 | ||
6d0f6bcf JCPV |
33 | if (CONFIG_SYS_CACHELINE_SIZE) { |
34 | addr = start_addr & (CONFIG_SYS_CACHELINE_SIZE - 1); | |
affae2bf WD |
35 | for (addr = start_addr; |
36 | addr < end_addr; | |
6d0f6bcf | 37 | addr += CONFIG_SYS_CACHELINE_SIZE) { |
affae2bf | 38 | asm ("dcbst 0,%0": :"r" (addr)); |
138105ef | 39 | WATCHDOG_RESET(); |
affae2bf WD |
40 | } |
41 | asm ("sync"); /* Wait for all dcbst to complete on bus */ | |
42 | ||
43 | for (addr = start_addr; | |
44 | addr < end_addr; | |
6d0f6bcf | 45 | addr += CONFIG_SYS_CACHELINE_SIZE) { |
affae2bf | 46 | asm ("icbi 0,%0": :"r" (addr)); |
138105ef | 47 | WATCHDOG_RESET(); |
affae2bf WD |
48 | } |
49 | } | |
50 | asm ("sync"); /* Always flush prefetch queue in any case */ | |
51 | asm ("isync"); | |
0db5bca8 | 52 | #endif |
affae2bf | 53 | } |