3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * Cache support: switch on or off, get status
30 #if defined(CONFIG_CMD_CACHE)
32 static int on_off (const char *);
34 int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
37 case 2: /* on / off */
38 switch (on_off(argv[1])) {
39 #if 0 /* prevented by varargs handling; FALLTROUGH is harmless, too */
40 default: printf ("Usage:\n%s\n", cmdtp->usage);
43 case 0: icache_disable();
45 case 1: icache_enable ();
49 case 1: /* get status */
50 printf ("Instruction Cache is %s\n",
51 icache_status() ? "ON" : "OFF");
54 printf ("Usage:\n%s\n", cmdtp->usage);
60 int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
63 case 2: /* on / off */
64 switch (on_off(argv[1])) {
65 #if 0 /* prevented by varargs handling; FALLTROUGH is harmless, too */
66 default: printf ("Usage:\n%s\n", cmdtp->usage);
69 case 0: dcache_disable();
71 case 1: dcache_enable ();
75 case 1: /* get status */
76 printf ("Data (writethrough) Cache is %s\n",
77 dcache_status() ? "ON" : "OFF");
80 printf ("Usage:\n%s\n", cmdtp->usage);
87 static int on_off (const char *s)
89 if (strcmp(s, "on") == 0) {
91 } else if (strcmp(s, "off") == 0) {
99 icache, 2, 1, do_icache,
100 "icache - enable or disable instruction cache\n",
102 " - enable or disable instruction cache\n"
106 dcache, 2, 1, do_dcache,
107 "dcache - enable or disable data cache\n",
109 " - enable or disable data (writethrough) cache\n"