1 files changed, 37 insertions, 0 deletions
diff --git a/lib/dhry/cmd_dhry.c b/lib/dhry/cmd_dhry.c
new file mode 100644
index 00000000000..e52beaeaadc
--- /dev/null
+++ b/lib/dhry/cmd_dhry.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2015 Google, Inc
+ */
+
+#include <command.h>
+#include <div64.h>
+#include <time.h>
+#include <vsprintf.h>
+#include "dhry.h"
+
+static int do_dhry(struct cmd_tbl *cmdtp, int flag, int argc,
+		   char *const argv[])
+{
+	ulong start, duration, vax_mips;
+	u64 dhry_per_sec;
+	int iterations = 1000000;
+
+	if (argc > 1)
+		iterations = dectoul(argv[1], NULL);
+
+	start = get_timer(0);
+	dhry(iterations);
+	duration = get_timer(start);
+	dhry_per_sec = lldiv(iterations * 1000ULL, duration);
+	vax_mips = lldiv(dhry_per_sec, 1757);
+	printf("%d iterations in %lu ms: %lu/s, %lu DMIPS\n", iterations,
+	       duration, (ulong)dhry_per_sec, vax_mips);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	dhry,	2,	1,	do_dhry,
+	"[iterations] - run dhrystone benchmark",
+	"\n    - run the Dhrystone 2.1 benchmark, a rough measure of CPU speed\n"
+);