1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2011 The Chromium OS Authors.
4  */
5 
6 #include <common.h>
7 #include <command.h>
8 
report_time(ulong cycles)9 static void report_time(ulong cycles)
10 {
11 	ulong minutes, seconds, milliseconds;
12 	ulong total_seconds, remainder;
13 
14 	total_seconds = cycles / CONFIG_SYS_HZ;
15 	remainder = cycles % CONFIG_SYS_HZ;
16 	minutes = total_seconds / 60;
17 	seconds = total_seconds % 60;
18 	/* approximate millisecond value */
19 	milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
20 
21 	printf("\ntime:");
22 	if (minutes)
23 		printf(" %lu minutes,", minutes);
24 	printf(" %lu.%03lu seconds\n", seconds, milliseconds);
25 }
26 
do_time(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])27 static int do_time(struct cmd_tbl *cmdtp, int flag, int argc,
28 		   char *const argv[])
29 {
30 	ulong cycles = 0;
31 	int retval = 0;
32 	int repeatable = 0;
33 
34 	if (argc == 1)
35 		return CMD_RET_USAGE;
36 
37 	retval = cmd_process(0, argc - 1, argv + 1, &repeatable, &cycles);
38 	report_time(cycles);
39 
40 	return retval;
41 }
42 
43 U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time,
44 		"run commands and summarize execution time",
45 		"command [args...]\n");
46