dts: stm32: add SAES dependency on RNG firewall configuration for stm…

…32mp13 SAES is connected to RNG by an internal RNG bus to be DPA resistant. We must ensure that RNG is allocated to the secure world to prevent the non secure to shut down the RNG peripheral. Therefore add RNG to the access-controllers of SAES node in stm32mp13 SoC DTSI files. Signed-off-by: Thomas Bourgoin <[email protected]> Reviewed-by: Etienne Carriere <[email protected]> Reviewed-by: Gatien Chevallier <[email protected]>
gagachang · Jan 27, 2025 · 9a3ddeb · 9a3ddeb
1 parent 1474416
commit 9a3ddeb
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/core/arch/arm/dts/stm32mp13xc.dtsi b/core/arch/arm/dts/stm32mp13xc.dtsi
@@ -22,7 +22,7 @@
 		clocks = <&rcc SAES_K>, <&rcc RNG1_K>;
 		clock-names = "bus", "rng";
 		resets = <&rcc SAES_R>;
-		access-controllers = <&etzpc STM32MP1_ETZPC_SAES_ID>;
+		access-controllers = <&etzpc STM32MP1_ETZPC_SAES_ID>, <&etzpc STM32MP1_ETZPC_RNG_ID>;
 		status = "disabled";
 	};
 

diff --git a/core/arch/arm/dts/stm32mp13xf.dtsi b/core/arch/arm/dts/stm32mp13xf.dtsi
@@ -22,7 +22,7 @@
 		clocks = <&rcc SAES_K>, <&rcc RNG1_K>;
 		clock-names = "bus", "rng";
 		resets = <&rcc SAES_R>;
-		access-controllers = <&etzpc STM32MP1_ETZPC_SAES_ID>;
+		access-controllers = <&etzpc STM32MP1_ETZPC_SAES_ID>, <&etzpc STM32MP1_ETZPC_RNG_ID>;
 		status = "disabled";
 	};