diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig
index c0c49c3..21a9ff0 100644
--- a/drivers/rng/Kconfig
+++ b/drivers/rng/Kconfig
@@ -65,4 +65,13 @@
 	depends on DM_RNG
 	help
 	  Enable random number generator for RPI4.
+
+config RNG_SMCCC_TRNG
+	bool "Arm SMCCC TRNG interface"
+	depends on DM_RNG && ARM_PSCI_FW
+	default y if ARM_SMCCC_FEATURES
+	help
+	  Enable random number generator for platforms that support Arm
+	  SMCCC TRNG interface.
+
 endif