1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2001
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7 #include <command.h>
8 #include <time.h>
9 #include <linux/string.h>
10
do_timer(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])11 static int do_timer(struct cmd_tbl *cmdtp, int flag, int argc,
12 char *const argv[])
13 {
14 static ulong start;
15
16 if (argc != 2)
17 return CMD_RET_USAGE;
18
19 if (!strcmp(argv[1], "start"))
20 start = get_timer(0);
21
22 if (!strcmp(argv[1], "get")) {
23 ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
24 printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
25 }
26
27 return 0;
28 }
29
30 U_BOOT_CMD(
31 timer, 2, 1, do_timer,
32 "access the system timer",
33 "start - Reset the timer reference.\n"
34 "timer get - Print the time since 'start'."
35 );
36