u-boot/cmd/timer.c
Bin Meng 3c7bb89718 cmd: Split out timer command from the sleep command
CONFIG_CMD_TIMER merits a single file instead of co-exist in the
sleep command file.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
2020-10-23 13:33:07 -04:00

35 lines
707 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <common.h>
#include <command.h>
static int do_timer(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
static ulong start;
if (argc != 2)
return CMD_RET_USAGE;
if (!strcmp(argv[1], "start"))
start = get_timer(0);
if (!strcmp(argv[1], "get")) {
ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
}
return 0;
}
U_BOOT_CMD(
timer, 2, 1, do_timer,
"access the system timer",
"start - Reset the timer reference.\n"
"timer get - Print the time since 'start'."
);