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3863585b WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Wolfgang Denk, DENX Software Engineering, [email protected]. | |
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 | ||
54841ab5 | 30 | int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
3863585b | 31 | { |
c4c13df2 | 32 | ulong start = get_timer(0); |
3863585b WD |
33 | ulong delay; |
34 | ||
47e26b1b WD |
35 | if (argc != 2) |
36 | return cmd_usage(cmdtp); | |
3863585b | 37 | |
6d0f6bcf | 38 | delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ; |
3863585b | 39 | |
c4c13df2 | 40 | while (get_timer(start) < delay) { |
47e26b1b | 41 | if (ctrlc ()) |
c4c13df2 | 42 | return (-1); |
47e26b1b | 43 | |
c4c13df2 | 44 | udelay (100); |
3863585b | 45 | } |
c4c13df2 | 46 | |
3863585b WD |
47 | return 0; |
48 | } | |
c4c13df2 | 49 | |
0d498393 | 50 | U_BOOT_CMD( |
9912121f | 51 | sleep , 2, 1, do_sleep, |
2fb2604d | 52 | "delay execution for some time", |
8bde7f77 | 53 | "N\n" |
a89c33db | 54 | " - delay execution for N seconds (N is _decimal_ !!!)" |
8bde7f77 | 55 | ); |