]> Git Repo - J-u-boot.git/blob - cmd/sleep.c
Merge patch series "Apply SoM overlays on phyCORE-AM6xx SoMs"
[J-u-boot.git] / cmd / sleep.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2001
4  * Wolfgang Denk, DENX Software Engineering, [email protected].
5  */
6
7 #include <command.h>
8 #include <console.h>
9 #include <time.h>
10 #include <vsprintf.h>
11 #include <linux/delay.h>
12
13 static int do_sleep(struct cmd_tbl *cmdtp, int flag, int argc,
14                     char *const argv[])
15 {
16         ulong start = get_timer(0);
17         ulong mdelay = 0;
18         ulong delay;
19         char *frpart;
20
21         if (argc != 2)
22                 return CMD_RET_USAGE;
23
24         delay = dectoul(argv[1], NULL) * CONFIG_SYS_HZ;
25
26         frpart = strchr(argv[1], '.');
27
28         if (frpart) {
29                 uint mult = CONFIG_SYS_HZ / 10;
30                 for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
31                         if (*frpart < '0' || *frpart > '9') {
32                                 mdelay = 0;
33                                 break;
34                         }
35                         mdelay += (*frpart - '0') * mult;
36                         mult /= 10;
37                 }
38         }
39
40         delay += mdelay;
41
42         while (get_timer(start) < delay) {
43                 if (ctrlc())
44                         return CMD_RET_FAILURE;
45
46                 udelay(100);
47         }
48
49         return 0;
50 }
51
52 U_BOOT_CMD(
53         sleep ,    2,    1,     do_sleep,
54         "delay execution for some time",
55         "N\n"
56         "    - delay execution for N seconds (N is _decimal_ and can be\n"
57         "      fractional)"
58 );
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