1 files changed, 27 insertions, 0 deletions
diff --git a/roms/u-boot/test/dm/rng.c b/roms/u-boot/test/dm/rng.c
new file mode 100644
index 000000000..5b34c93ed
--- /dev/null
+++ b/roms/u-boot/test/dm/rng.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2019, Linaro Limited
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <log.h>
+#include <rng.h>
+#include <dm/test.h>
+#include <test/ut.h>
+
+/* Basic test of the rng uclass */
+static int dm_test_rng_read(struct unit_test_state *uts)
+{
+	unsigned long rand1 = 0, rand2 = 0;
+	struct udevice *dev;
+
+	ut_assertok(uclass_get_device(UCLASS_RNG, 0, &dev));
+	ut_assertnonnull(dev);
+	ut_assertok(dm_rng_read(dev, &rand1, sizeof(rand1)));
+	ut_assertok(dm_rng_read(dev, &rand2, sizeof(rand2)));
+	ut_assert(rand1 != rand2);
+
+	return 0;
+}
+DM_TEST(dm_test_rng_read, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);