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wdenk38635852002-08-27 05:55:31 +00001/*
2 * (C) Copyright 2001
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 * Misc functions
26 */
27#include <common.h>
28#include <command.h>
29
wdenk38635852002-08-27 05:55:31 +000030int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
31{
Stefan Roesec4c13df2005-10-20 16:36:44 +020032 ulong start = get_timer(0);
wdenk38635852002-08-27 05:55:31 +000033 ulong delay;
34
35 if (argc != 2) {
Peter Tyser62c3ae72009-01-27 18:03:10 -060036 cmd_usage(cmdtp);
wdenk38635852002-08-27 05:55:31 +000037 return 1;
38 }
39
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020040 delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
wdenk38635852002-08-27 05:55:31 +000041
Stefan Roesec4c13df2005-10-20 16:36:44 +020042 while (get_timer(start) < delay) {
43 if (ctrlc ()) {
44 return (-1);
wdenk38635852002-08-27 05:55:31 +000045 }
Stefan Roesec4c13df2005-10-20 16:36:44 +020046 udelay (100);
wdenk38635852002-08-27 05:55:31 +000047 }
Stefan Roesec4c13df2005-10-20 16:36:44 +020048
wdenk38635852002-08-27 05:55:31 +000049 return 0;
50}
Stefan Roesec4c13df2005-10-20 16:36:44 +020051
wdenk0d498392003-07-01 21:06:45 +000052U_BOOT_CMD(
Detlev Zundel99121212007-05-23 19:02:41 +020053 sleep , 2, 1, do_sleep,
Peter Tyser2fb26042009-01-27 18:03:12 -060054 "delay execution for some time",
wdenk8bde7f72003-06-27 21:31:46 +000055 "N\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +020056 " - delay execution for N seconds (N is _decimal_ !!!)"
wdenk8bde7f72003-06-27 21:31:46 +000057);