blob: 5b34c93ed670a76f22472630281c9beb654eade3 [file] [log] [blame]
Sughosh Ganu4ee08eb2019-12-28 23:58:33 +05301// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2019, Linaro Limited
4 */
5
6#include <common.h>
7#include <dm.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -06008#include <log.h>
Sughosh Ganu4ee08eb2019-12-28 23:58:33 +05309#include <rng.h>
10#include <dm/test.h>
11#include <test/ut.h>
12
13/* Basic test of the rng uclass */
14static int dm_test_rng_read(struct unit_test_state *uts)
15{
16 unsigned long rand1 = 0, rand2 = 0;
17 struct udevice *dev;
18
19 ut_assertok(uclass_get_device(UCLASS_RNG, 0, &dev));
20 ut_assertnonnull(dev);
21 ut_assertok(dm_rng_read(dev, &rand1, sizeof(rand1)));
22 ut_assertok(dm_rng_read(dev, &rand2, sizeof(rand2)));
23 ut_assert(rand1 != rand2);
24
25 return 0;
26}
Simon Glasse180c2b2020-07-28 19:41:12 -060027DM_TEST(dm_test_rng_read, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);