projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 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> | |
| 29 | #include <cmd_cache.h> | |
| 30 | ||
| 31 | #if (CONFIG_COMMANDS & CFG_CMD_CACHE) | |
| 32 | ||
| 33 | static int on_off (const char *); | |
| 34 | ||
| 35 | int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
| 36 | { | |
| 37 | switch (argc) { | |
| 38 | case 2: /* on / off */ | |
| 39 | switch (on_off(argv[1])) { | |
| 40 | #if 0 /* prevented by varargs handling; FALLTROUGH is harmless, too */ | |
| 41 | default: printf ("Usage:\n%s\n", cmdtp->usage); | |
| 42 | return; | |
| 43 | #endif | |
| 44 | case 0: icache_disable(); | |
| 45 | break; | |
| 46 | case 1: icache_enable (); | |
| 47 | break; | |
| 48 | } | |
| 49 | /* FALL TROUGH */ | |
| 50 | case 1: /* get status */ | |
| 51 | printf ("Instruction Cache is %s\n", | |
| 52 | icache_status() ? "ON" : "OFF"); | |
| 53 | return 0; | |
| 54 | default: | |
| 55 | printf ("Usage:\n%s\n", cmdtp->usage); | |
| 56 | return 1; | |
| 57 | } | |
| 58 | return 0; | |
| 59 | } | |
| 60 | ||
| 61 | int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
| 62 | { | |
| 63 | switch (argc) { | |
| 64 | case 2: /* on / off */ | |
| 65 | switch (on_off(argv[1])) { | |
| 66 | #if 0 /* prevented by varargs handling; FALLTROUGH is harmless, too */ | |
| 67 | default: printf ("Usage:\n%s\n", cmdtp->usage); | |
| 68 | return; | |
| 69 | #endif | |
| 70 | case 0: dcache_disable(); | |
| 71 | break; | |
| 72 | case 1: dcache_enable (); | |
| 73 | break; | |
| 74 | } | |
| 75 | /* FALL TROUGH */ | |
| 76 | case 1: /* get status */ | |
| 77 | printf ("Data (writethrough) Cache is %s\n", | |
| 78 | dcache_status() ? "ON" : "OFF"); | |
| 79 | return 0; | |
| 80 | default: | |
| 81 | printf ("Usage:\n%s\n", cmdtp->usage); | |
| 82 | return 1; | |
| 83 | } | |
| 84 | return 0; | |
| 85 | ||
| 86 | } | |
| 87 | ||
| 88 | static int on_off (const char *s) | |
| 89 | { | |
| 90 | if (strcmp(s, "on") == 0) { | |
| 91 | return (1); | |
| 92 | } else if (strcmp(s, "off") == 0) { | |
| 93 | return (0); | |
| 94 | } | |
| 95 | return (-1); | |
| 96 | } | |
| 97 | ||
| 98 | #endif /* CFG_CMD_CACHE */ |