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author | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
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committer | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
commit | 92988a21ad4c4c9504295ccb580c9f806134471b (patch) | |
tree | 5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/common/cmd_cache.c | |
parent | ca2b506783b676c95762c54ea24dcfdaae1947c9 (diff) | |
download | bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.gz bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.bz2 bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.zip |
added boot script files to repository
Diffstat (limited to 'u-boot/common/cmd_cache.c')
-rw-r--r-- | u-boot/common/cmd_cache.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/u-boot/common/cmd_cache.c b/u-boot/common/cmd_cache.c new file mode 100644 index 000000000..5cdd8341f --- /dev/null +++ b/u-boot/common/cmd_cache.c @@ -0,0 +1,98 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * Cache support: switch on or off, get status + */ +#include <common.h> +#include <command.h> + +static int on_off (const char *); + +int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + switch (argc) { + case 2: /* on / off */ + switch (on_off(argv[1])) { + case 0: icache_disable(); + break; + case 1: icache_enable (); + break; + } + /* FALL TROUGH */ + case 1: /* get status */ + printf ("Instruction Cache is %s\n", + icache_status() ? "ON" : "OFF"); + return 0; + default: + return cmd_usage(cmdtp); + } + return 0; +} + +int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + switch (argc) { + case 2: /* on / off */ + switch (on_off(argv[1])) { + case 0: dcache_disable(); + break; + case 1: dcache_enable (); + break; + } + /* FALL TROUGH */ + case 1: /* get status */ + printf ("Data (writethrough) Cache is %s\n", + dcache_status() ? "ON" : "OFF"); + return 0; + default: + return cmd_usage(cmdtp); + } + return 0; + +} + +static int on_off (const char *s) +{ + if (strcmp(s, "on") == 0) { + return (1); + } else if (strcmp(s, "off") == 0) { + return (0); + } + return (-1); +} + + +U_BOOT_CMD( + icache, 2, 1, do_icache, + "enable or disable instruction cache", + "[on, off]\n" + " - enable or disable instruction cache" +); + +U_BOOT_CMD( + dcache, 2, 1, do_dcache, + "enable or disable data cache", + "[on, off]\n" + " - enable or disable data (writethrough) cache" +); |