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https://github.com/brain-hackers/u-boot-brain
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bcb324d68f
A small number of common/cmd_*.c files contain preprocessor tests that are apparently superfluous since those same tests are used in the Makefile to control the compilation of those files. Those tests are clearly redundant as long as they surround the entirety of the source in those files. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Cache support: switch on or off, get status
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*/
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#include <common.h>
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#include <command.h>
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static int on_off (const char *);
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int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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switch (argc) {
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case 2: /* on / off */
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switch (on_off(argv[1])) {
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#if 0 /* prevented by varargs handling; FALLTROUGH is harmless, too */
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default: cmd_usage(cmdtp);
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return;
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#endif
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case 0: icache_disable();
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break;
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case 1: icache_enable ();
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break;
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}
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/* FALL TROUGH */
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case 1: /* get status */
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printf ("Instruction Cache is %s\n",
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icache_status() ? "ON" : "OFF");
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return 0;
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default:
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cmd_usage(cmdtp);
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return 1;
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}
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return 0;
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}
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int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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switch (argc) {
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case 2: /* on / off */
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switch (on_off(argv[1])) {
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#if 0 /* prevented by varargs handling; FALLTROUGH is harmless, too */
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default: cmd_usage(cmdtp);
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return;
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#endif
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case 0: dcache_disable();
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break;
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case 1: dcache_enable ();
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break;
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}
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/* FALL TROUGH */
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case 1: /* get status */
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printf ("Data (writethrough) Cache is %s\n",
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dcache_status() ? "ON" : "OFF");
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return 0;
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default:
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cmd_usage(cmdtp);
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return 1;
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}
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return 0;
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}
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static int on_off (const char *s)
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{
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if (strcmp(s, "on") == 0) {
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return (1);
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} else if (strcmp(s, "off") == 0) {
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return (0);
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}
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return (-1);
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}
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U_BOOT_CMD(
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icache, 2, 1, do_icache,
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"enable or disable instruction cache",
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"[on, off]\n"
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" - enable or disable instruction cache"
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);
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U_BOOT_CMD(
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dcache, 2, 1, do_dcache,
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"enable or disable data cache",
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"[on, off]\n"
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" - enable or disable data (writethrough) cache"
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);
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