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3863585b WD |
1 | /* |
2 | * (C) Copyright 2000 | |
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 | /* | |
25 | * Cache support: switch on or off, get status | |
26 | */ | |
27 | #include <common.h> | |
28 | #include <command.h> | |
3863585b | 29 | |
3863585b WD |
30 | static int on_off (const char *); |
31 | ||
54841ab5 | 32 | int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
3863585b WD |
33 | { |
34 | switch (argc) { | |
35 | case 2: /* on / off */ | |
36 | switch (on_off(argv[1])) { | |
3863585b WD |
37 | case 0: icache_disable(); |
38 | break; | |
39 | case 1: icache_enable (); | |
40 | break; | |
41 | } | |
42 | /* FALL TROUGH */ | |
43 | case 1: /* get status */ | |
44 | printf ("Instruction Cache is %s\n", | |
45 | icache_status() ? "ON" : "OFF"); | |
46 | return 0; | |
47 | default: | |
47e26b1b | 48 | return cmd_usage(cmdtp); |
3863585b WD |
49 | } |
50 | return 0; | |
51 | } | |
52 | ||
54841ab5 | 53 | int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
3863585b WD |
54 | { |
55 | switch (argc) { | |
56 | case 2: /* on / off */ | |
57 | switch (on_off(argv[1])) { | |
3863585b WD |
58 | case 0: dcache_disable(); |
59 | break; | |
60 | case 1: dcache_enable (); | |
61 | break; | |
62 | } | |
63 | /* FALL TROUGH */ | |
64 | case 1: /* get status */ | |
65 | printf ("Data (writethrough) Cache is %s\n", | |
66 | dcache_status() ? "ON" : "OFF"); | |
67 | return 0; | |
68 | default: | |
47e26b1b | 69 | return cmd_usage(cmdtp); |
3863585b WD |
70 | } |
71 | return 0; | |
72 | ||
73 | } | |
74 | ||
75 | static int on_off (const char *s) | |
76 | { | |
77 | if (strcmp(s, "on") == 0) { | |
78 | return (1); | |
79 | } else if (strcmp(s, "off") == 0) { | |
80 | return (0); | |
81 | } | |
82 | return (-1); | |
83 | } | |
84 | ||
8bde7f77 | 85 | |
0d498393 WD |
86 | U_BOOT_CMD( |
87 | icache, 2, 1, do_icache, | |
2fb2604d | 88 | "enable or disable instruction cache", |
8bde7f77 | 89 | "[on, off]\n" |
a89c33db | 90 | " - enable or disable instruction cache" |
8bde7f77 WD |
91 | ); |
92 | ||
0d498393 WD |
93 | U_BOOT_CMD( |
94 | dcache, 2, 1, do_dcache, | |
2fb2604d | 95 | "enable or disable data cache", |
8bde7f77 | 96 | "[on, off]\n" |
a89c33db | 97 | " - enable or disable data (writethrough) cache" |
8bde7f77 | 98 | ); |