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b2368754 JCPV |
1 | /* |
2 | * (C) Copyright 2004 | |
3 | * DAVE Srl | |
4 | * http://www.dave-tech.it | |
5 | * http://www.wawnet.biz | |
6 | * mailto:info@wawnet.biz | |
7 | * | |
1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
b2368754 JCPV |
9 | */ |
10 | ||
11 | #include <common.h> | |
12 | #include <command.h> | |
13 | #include <asm/hardware.h> | |
14 | ||
15 | static void s3c44b0_flush_cache(void) | |
16 | { | |
17 | volatile int i; | |
18 | /* flush cycle */ | |
19 | for(i=0x10002000;i<0x10004800;i+=16) | |
20 | { | |
21 | *((int *)i)=0x0; | |
22 | } | |
23 | } | |
24 | ||
25 | void icache_enable (void) | |
26 | { | |
27 | ulong reg; | |
28 | ||
29 | s3c44b0_flush_cache(); | |
30 | ||
31 | /* | |
32 | Init cache | |
33 | Non-cacheable area (everything outside RAM) | |
34 | 0x0000:0000 - 0x0C00:0000 | |
35 | */ | |
36 | NCACHBE0 = 0xC0000000; | |
37 | NCACHBE1 = 0x00000000; | |
38 | ||
39 | /* | |
40 | Enable chache | |
41 | */ | |
42 | reg = SYSCFG; | |
43 | reg |= 0x00000006; /* 8kB */ | |
44 | SYSCFG = reg; | |
45 | } | |
46 | ||
47 | void icache_disable (void) | |
48 | { | |
49 | ulong reg; | |
50 | ||
51 | reg = SYSCFG; | |
52 | reg &= ~0x00000006; /* 8kB */ | |
53 | SYSCFG = reg; | |
54 | } | |
55 | ||
56 | int icache_status (void) | |
57 | { | |
58 | return 0; | |
59 | } | |
60 | ||
61 | void dcache_enable (void) | |
62 | { | |
63 | icache_enable(); | |
64 | } | |
65 | ||
66 | void dcache_disable (void) | |
67 | { | |
68 | icache_disable(); | |
69 | } | |
70 | ||
71 | int dcache_status (void) | |
72 | { | |
73 | return dcache_status(); | |
74 | } |