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https://github.com/brain-hackers/u-boot-brain
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4c12eeb8b5
Change all files in common/ to use CMD_RET_USAGE instead of calling cmd_usage() directly. I'm not completely sure about this patch since the code since impact is small (100 byte or so on ARM) and it might need splitting into smaller patches. But for now here it is. Signed-off-by: Simon Glass <sjg@chromium.org>
118 lines
2.7 KiB
C
118 lines
2.7 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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#include <linux/compiler.h>
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static int parse_argv(const char *);
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void __weak flush_icache(void)
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{
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/* please define arch specific flush_icache */
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puts("No arch specific flush_icache available!\n");
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}
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int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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switch (argc) {
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case 2: /* on / off */
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switch (parse_argv(argv[1])) {
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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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case 2: flush_icache();
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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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return CMD_RET_USAGE;
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}
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return 0;
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}
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void __weak flush_dcache(void)
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{
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puts("No arch specific flush_dcache available!\n");
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/* please define arch specific flush_dcache */
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}
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int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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switch (argc) {
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case 2: /* on / off */
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switch (parse_argv(argv[1])) {
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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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case 2: flush_dcache();
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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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return CMD_RET_USAGE;
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}
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return 0;
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}
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static int parse_argv(const char *s)
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{
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if (strcmp(s, "flush") == 0) {
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return (2);
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} else 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, flush]\n"
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" - enable, disable, or flush 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, flush]\n"
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" - enable, disable, or flush data (writethrough) cache"
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);
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