test: drivers: rand32: add overlay for PSA Crypto Random entropy

This adds an overlay DT & config to enable the PSA Crypto Random entropy driver to get random bytes from TFM. Signed-off-by: Neil Armstrong <[email protected]> Signed-off-by: Valerio Setti <[email protected]>
albayenes · Oct 27, 2022 · 62dc712 · 62dc712
1 parent 7266f82
commit 62dc712
Show file tree

Hide file tree

Showing 3 changed files with 28 additions and 0 deletions.
diff --git a/tests/crypto/rand32/entropy_psa_crypto.overlay b/tests/crypto/rand32/entropy_psa_crypto.overlay
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		zephyr,entropy = &rng_psa;
+	};
+
+	rng_psa: entropy_psa_crypto {
+		compatible = "zephyr,psa-crypto-rng";
+		status = "okay";
+	};
+};
diff --git a/tests/crypto/rand32/prj_hw_random_psa_crypto.conf b/tests/crypto/rand32/prj_hw_random_psa_crypto.conf
@@ -0,0 +1,8 @@
+CONFIG_ZTEST=y
+CONFIG_ZTEST_NEW_API=y
+CONFIG_LOG=y
+CONFIG_ENTROPY_GENERATOR=y
+CONFIG_HARDWARE_DEVICE_CS_GENERATOR=y
+CONFIG_TFM_PARTITION_CRYPTO=y
+CONFIG_TFM_CRYPTO_RNG_MODULE_ENABLED=y
+CONFIG_ENTROPY_PSA_CRYPTO_RNG=y
diff --git a/tests/crypto/rand32/testcase.yaml b/tests/crypto/rand32/testcase.yaml
@@ -16,3 +16,7 @@ tests:
     filter: CONFIG_ENTROPY_HAS_DRIVER
     tags: crypto entropy random security
     min_ram: 16
+  drivers.rand32.random_psa_crypto:
+    filter: CONFIG_BUILD_WITH_TFM
+    extra_args: DTC_OVERLAY_FILE=./entropy_psa_crypto.overlay CONF_FILE=prj_hw_random_psa_crypto.conf
+    tags: crypto entropy random security psa-crypto