dts: stm32mp15: harden RCC secure configuration on ST boards

Enable STM32MP15 RCC secure hardening configuration on ST boards (DK1, DK2, ED1 and EV1) to assign SoC clocks, reset controllers and PWR regulators to OP-TEE secure world. This change removes setting of &rcc node status property from stm32mp157a-dk1.dts, stm32mp157c-dk2.dts as the property is set from stm32mp15xx-dkx.dtsi that is included from the 2 former DTS files. Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
etienne-lms · Nov 23, 2023 · 2f63248 · 2f63248
1 parent c7f9abc
commit 2f63248
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Showing 4 changed files with 6 additions and 8 deletions.
diff --git a/core/arch/arm/dts/stm32mp157a-dk1.dts b/core/arch/arm/dts/stm32mp157a-dk1.dts
@@ -36,7 +36,3 @@
 		reg = <0xf0 0x10>;
 	};
 };
-
-&rcc {
-	status = "okay";
-};
diff --git a/core/arch/arm/dts/stm32mp157c-dk2.dts b/core/arch/arm/dts/stm32mp157c-dk2.dts
@@ -98,10 +98,6 @@
 	};
 };
 
-&rcc {
-	status = "okay";
-};
-
 &usart2 {
 	pinctrl-names = "default", "sleep", "idle";
 	pinctrl-0 = <&usart2_pins_c>;

diff --git a/core/arch/arm/dts/stm32mp157c-ed1.dts b/core/arch/arm/dts/stm32mp157c-ed1.dts
@@ -338,6 +338,7 @@
 };
 
 &rcc {
+	compatible = "st,stm32mp1-rcc-secure";
 	status = "okay";
 };
 

diff --git a/core/arch/arm/dts/stm32mp15xx-dkx.dtsi b/core/arch/arm/dts/stm32mp15xx-dkx.dtsi
@@ -489,6 +489,11 @@
 	vdd_3v3_usbfs-supply = <&vdd_usb>;
 };
 
+&rcc {
+	compatible = "st,stm32mp1-rcc-secure";
+	status = "okay";
+};
+
 &rng1 {
 	status = "okay";
 };
-Original file line number
+Diff line change
@@ Expand Up / @@ -36,7 +36,3 @@ @@
     		reg = <0xf0 0x10>;
     	};
     };
-    &rcc {
-    	status = "okay";
-    };