diff --git a/boards/arm/v2m_musca/v2m_musca.dts b/boards/arm/v2m_musca/v2m_musca.dts
index 23aaec1389b..24295acd784 100644
--- a/boards/arm/v2m_musca/v2m_musca.dts
+++ b/boards/arm/v2m_musca/v2m_musca.dts
@@ -28,6 +28,14 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-m33";
 			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+				arm,num-mpu-regions = <8>;
+			};
 		};
 	};
 
diff --git a/boards/arm/v2m_musca/v2m_musca_nonsecure.dts b/boards/arm/v2m_musca/v2m_musca_nonsecure.dts
index 31d9aa0034d..a0d05b442bc 100644
--- a/boards/arm/v2m_musca/v2m_musca_nonsecure.dts
+++ b/boards/arm/v2m_musca/v2m_musca_nonsecure.dts
@@ -28,6 +28,14 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-m33";
 			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+				arm,num-mpu-regions = <8>;
+			};
 		};
 	};
 
diff --git a/boards/arm/v2m_musca_b1/v2m_musca_b1.dts b/boards/arm/v2m_musca_b1/v2m_musca_b1.dts
index a0a0bff112d..e2678a80c4d 100644
--- a/boards/arm/v2m_musca_b1/v2m_musca_b1.dts
+++ b/boards/arm/v2m_musca_b1/v2m_musca_b1.dts
@@ -28,6 +28,14 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-m33";
 			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+				arm,num-mpu-regions = <8>;
+			};
 		};
 	};
 
diff --git a/boards/arm/v2m_musca_b1/v2m_musca_b1_nonsecure.dts b/boards/arm/v2m_musca_b1/v2m_musca_b1_nonsecure.dts
index 6459a231c47..2fb1cca3caf 100644
--- a/boards/arm/v2m_musca_b1/v2m_musca_b1_nonsecure.dts
+++ b/boards/arm/v2m_musca_b1/v2m_musca_b1_nonsecure.dts
@@ -28,6 +28,14 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-m33";
 			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+				arm,num-mpu-regions = <8>;
+			};
 		};
 	};
 
diff --git a/dts/arm/nordic/nrf9160.dtsi b/dts/arm/nordic/nrf9160.dtsi
index 1cc89cb5fb5..9f0037abcdc 100644
--- a/dts/arm/nordic/nrf9160.dtsi
+++ b/dts/arm/nordic/nrf9160.dtsi
@@ -17,6 +17,14 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-m33f";
 			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+				arm,num-mpu-regions = <16>;
+			};
 		};
 	};
 
diff --git a/dts/arm/nordic/nrf9160ns.dtsi b/dts/arm/nordic/nrf9160ns.dtsi
index 5c4033f5faf..5e156ff4397 100644
--- a/dts/arm/nordic/nrf9160ns.dtsi
+++ b/dts/arm/nordic/nrf9160ns.dtsi
@@ -17,6 +17,14 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-m33f";
 			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			mpu: mpu@e000ed90 {
+				compatible = "arm,armv8m-mpu";
+				reg = <0xe000ed90 0x40>;
+				arm,num-mpu-regions = <16>;
+			};
 		};
 	};
 
diff --git a/soc/arm/arm/musca_a/dts_fixup.h b/soc/arm/arm/musca_a/dts_fixup.h
index c650e453163..ecae729d098 100644
--- a/soc/arm/arm/musca_a/dts_fixup.h
+++ b/soc/arm/arm/musca_a/dts_fixup.h
@@ -8,6 +8,8 @@
 
 #define DT_NUM_IRQ_PRIO_BITS	DT_ARM_V8M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
 
+#define DT_NUM_MPU_REGIONS		DT_ARM_ARMV8M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
+
 #if defined (CONFIG_ARM_NONSECURE_FIRMWARE)
 
 /* CMSDK APB Universal Asynchronous Receiver-Transmitter (UART) */
diff --git a/soc/arm/arm/musca_b1/dts_fixup.h b/soc/arm/arm/musca_b1/dts_fixup.h
index 2e43eb9aa6a..296ecca0cce 100644
--- a/soc/arm/arm/musca_b1/dts_fixup.h
+++ b/soc/arm/arm/musca_b1/dts_fixup.h
@@ -8,6 +8,8 @@
 
 #define DT_NUM_IRQ_PRIO_BITS	DT_ARM_V8M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
 
+#define DT_NUM_MPU_REGIONS		DT_ARM_ARMV8M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
+
 #if defined (CONFIG_ARM_NONSECURE_FIRMWARE)
 
 /* CMSDK APB Universal Asynchronous Receiver-Transmitter (UART) */
diff --git a/soc/arm/nordic_nrf/nrf91/dts_fixup.h b/soc/arm/nordic_nrf/nrf91/dts_fixup.h
index 575f3e77c3b..b16b17c790d 100644
--- a/soc/arm/nordic_nrf/nrf91/dts_fixup.h
+++ b/soc/arm/nordic_nrf/nrf91/dts_fixup.h
@@ -8,6 +8,8 @@
 
 #define DT_NUM_IRQ_PRIO_BITS		DT_ARM_V8M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
 
+#define DT_NUM_MPU_REGIONS		DT_ARM_ARMV8M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
+
 #define DT_ADC_0_NAME			DT_NORDIC_NRF_SAADC_ADC_0_LABEL
 
 #define DT_UART_0_NAME			DT_NORDIC_NRF_UARTE_UART_0_LABEL