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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- */
- #include <common.h>
- #include <command.h>
- #include <console.h>
- #include <linux/delay.h>
- static int do_sleep(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- ulong start = get_timer(0);
- ulong mdelay = 0;
- ulong delay;
- char *frpart;
- if (argc != 2)
- return CMD_RET_USAGE;
- delay = dectoul(argv[1], NULL) * CONFIG_SYS_HZ;
- frpart = strchr(argv[1], '.');
- if (frpart) {
- uint mult = CONFIG_SYS_HZ / 10;
- for (frpart++; *frpart != '\0' && mult > 0; frpart++) {
- if (*frpart < '0' || *frpart > '9') {
- mdelay = 0;
- break;
- }
- mdelay += (*frpart - '0') * mult;
- mult /= 10;
- }
- }
- delay += mdelay;
- while (get_timer(start) < delay) {
- if (ctrlc())
- return CMD_RET_FAILURE;
- udelay(100);
- }
- return 0;
- }
- U_BOOT_CMD(
- sleep , 2, 1, do_sleep,
- "delay execution for some time",
- "N\n"
- " - delay execution for N seconds (N is _decimal_ and can be\n"
- " fractional)"
- );
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