When the RNG device is secured with OP-TEE, it is only accessible with
the HWRNG TA, the CONFIG_RNG_OPTEE is needed for STM32MP15 targets
with OP-TEE support.
The probe of this RNG driver fails when the TA is not available in OP-TEE
and the previous driver can be used, as CONFIG_RNG_STM32MP1 is activated
and when the associated node is activated in the device tree with:
&rng1 {
status = "okay";
};
When the RNG is used in OP-TEE, this node should be deactivated in
the Linux and U-Boot device tree.
Signed-off-by: Patrick Delaunay <patrick.delau...@foss.st.com>
---
configs/stm32mp15_defconfig | 1 +
configs/stm32mp15_trusted_defconfig | 1 +
2 files changed, 2 insertions(+)
diff --git a/configs/stm32mp15_defconfig b/configs/stm32mp15_defconfig
index 2beb88e81d..3f48c677e6 100644
--- a/configs/stm32mp15_defconfig
+++ b/configs/stm32mp15_defconfig
@@ -119,6 +119,7 @@ CONFIG_DM_REGULATOR_STPMIC1=y
CONFIG_REMOTEPROC_STM32_COPRO=y
CONFIG_RESET_SCMI=y
CONFIG_DM_RNG=y
+CONFIG_RNG_OPTEE=y
CONFIG_RNG_STM32MP1=y
CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
diff --git a/configs/stm32mp15_trusted_defconfig
b/configs/stm32mp15_trusted_defconfig
index c6857d08ec..9f869aca36 100644
--- a/configs/stm32mp15_trusted_defconfig
+++ b/configs/stm32mp15_trusted_defconfig
@@ -120,6 +120,7 @@ CONFIG_DM_REGULATOR_STPMIC1=y
CONFIG_REMOTEPROC_STM32_COPRO=y
CONFIG_RESET_SCMI=y
CONFIG_DM_RNG=y
+CONFIG_RNG_OPTEE=y
CONFIG_RNG_STM32MP1=y
CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
--
2.25.1
