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1 | /* |
2 | * Copyright (C) 2004-2006 Atmel Corporation | |
3 | * | |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | #include <common.h> | |
24 | ||
25 | #include <asm/cacheflush.h> | |
26 | ||
27 | void dcache_clean_range(volatile void *start, size_t size) | |
28 | { | |
29 | unsigned long v, begin, end, linesz; | |
30 | ||
6d0f6bcf | 31 | linesz = CONFIG_SYS_DCACHE_LINESZ; |
72a087e0 WD |
32 | |
33 | /* You asked for it, you got it */ | |
34 | begin = (unsigned long)start & ~(linesz - 1); | |
35 | end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); | |
36 | ||
37 | for (v = begin; v < end; v += linesz) | |
38 | dcache_clean_line((void *)v); | |
39 | ||
40 | sync_write_buffer(); | |
41 | } | |
42 | ||
43 | void dcache_invalidate_range(volatile void *start, size_t size) | |
44 | { | |
45 | unsigned long v, begin, end, linesz; | |
46 | ||
6d0f6bcf | 47 | linesz = CONFIG_SYS_DCACHE_LINESZ; |
72a087e0 WD |
48 | |
49 | /* You asked for it, you got it */ | |
50 | begin = (unsigned long)start & ~(linesz - 1); | |
51 | end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); | |
52 | ||
53 | for (v = begin; v < end; v += linesz) | |
54 | dcache_invalidate_line((void *)v); | |
55 | } | |
56 | ||
57 | void dcache_flush_range(volatile void *start, size_t size) | |
58 | { | |
59 | unsigned long v, begin, end, linesz; | |
60 | ||
6d0f6bcf | 61 | linesz = CONFIG_SYS_DCACHE_LINESZ; |
72a087e0 WD |
62 | |
63 | /* You asked for it, you got it */ | |
64 | begin = (unsigned long)start & ~(linesz - 1); | |
65 | end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); | |
66 | ||
67 | for (v = begin; v < end; v += linesz) | |
68 | dcache_flush_line((void *)v); | |
69 | ||
70 | sync_write_buffer(); | |
71 | } | |
72 | ||
73 | void icache_invalidate_range(volatile void *start, size_t size) | |
74 | { | |
75 | unsigned long v, begin, end, linesz; | |
76 | ||
6d0f6bcf | 77 | linesz = CONFIG_SYS_ICACHE_LINESZ; |
72a087e0 WD |
78 | |
79 | /* You asked for it, you got it */ | |
80 | begin = (unsigned long)start & ~(linesz - 1); | |
81 | end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); | |
82 | ||
83 | for (v = begin; v < end; v += linesz) | |
84 | icache_invalidate_line((void *)v); | |
85 | } | |
86 | ||
87 | /* | |
88 | * This is called after loading something into memory. We need to | |
89 | * make sure that everything that was loaded is actually written to | |
90 | * RAM, and that the icache will look for it. Cleaning the dcache and | |
91 | * invalidating the icache will do the trick. | |
92 | */ | |
93 | void flush_cache (unsigned long start_addr, unsigned long size) | |
94 | { | |
95 | dcache_clean_range((void *)start_addr, size); | |
96 | icache_invalidate_range((void *)start_addr, size); | |
97 | } |