1 files changed, 44 insertions, 0 deletions
diff --git a/cmd/time.c b/cmd/time.c
new file mode 100644
index 0000000000..de57e3b9dd
--- /dev/null
+++ b/cmd/time.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+
+static void report_time(ulong cycles)
+{
+	ulong minutes, seconds, milliseconds;
+	ulong total_seconds, remainder;
+
+	total_seconds = cycles / CONFIG_SYS_HZ;
+	remainder = cycles % CONFIG_SYS_HZ;
+	minutes = total_seconds / 60;
+	seconds = total_seconds % 60;
+	/* approximate millisecond value */
+	milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
+
+	printf("\ntime:");
+	if (minutes)
+		printf(" %lu minutes,", minutes);
+	printf(" %lu.%03lu seconds\n", seconds, milliseconds);
+}
+
+static int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	ulong cycles = 0;
+	int retval = 0;
+	int repeatable;
+
+	if (argc == 1)
+		return CMD_RET_USAGE;
+
+	retval = cmd_process(0, argc - 1, argv + 1, &repeatable, &cycles);
+	report_time(cycles);
+
+	return retval;
+}
+
+U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time,
+		"run commands and summarize execution time",
+		"command [args...]\n");