dts/renesas/smartbond: Add support for the ARMv8-M MPU

lonkaars · kartben · commit 37b4407a6962 · 2025-05-23T15:30:53.000+02:00
This commit updates the DTS for the da1469x and defconfig for the
da1469x_dk_pro and da14695_dk_usb boards to support the ARMv8-M MPU.

Signed-off-by: Loek Le Blansch &lt;loek@pipeframe.xyz&gt;
diff --git a/boards/renesas/da14695_dk_usb/da14695_dk_usb_defconfig b/boards/renesas/da14695_dk_usb/da14695_dk_usb_defconfig
@@ -16,3 +16,5 @@ CONFIG_BUILD_OUTPUT_HEX=n
 
 CONFIG_I2C=y
 CONFIG_I2C_CALLBACK=y
+
+CONFIG_ARM_MPU=y
diff --git a/boards/renesas/da1469x_dk_pro/da1469x_dk_pro_defconfig b/boards/renesas/da1469x_dk_pro/da1469x_dk_pro_defconfig
@@ -9,3 +9,5 @@ CONFIG_UART_CONSOLE=y
 CONFIG_SERIAL=y
 
 CONFIG_BUILD_OUTPUT_HEX=n
+
+CONFIG_ARM_MPU=y
diff --git a/dts/arm/renesas/smartbond/da1469x.dtsi b/dts/arm/renesas/smartbond/da1469x.dtsi
@@ -30,6 +30,14 @@
 			reg = <0>;
 			clock-frequency = <32000000>;
 			cpu-power-states = <&standby>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+			};
 		};
 
 		power-states {
