diff --git a/fdts/stm32mp151.dtsi b/fdts/stm32mp151.dtsi
index ca93f0c..454e124 100644
--- a/fdts/stm32mp151.dtsi
+++ b/fdts/stm32mp151.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
- * Copyright (c) 2017-2021, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2017-2022, STMicroelectronics - All Rights Reserved
  * Author: Ludovic Barre <ludovic.barre@st.com> for STMicroelectronics.
  */
 #include <dt-bindings/interrupt-controller/arm-gic.h>
@@ -19,9 +19,31 @@
 			compatible = "arm,cortex-a7";
 			device_type = "cpu";
 			reg = <0>;
+			nvmem-cells = <&part_number_otp>;
+			nvmem-cell-names = "part_number";
 		};
 	};
 
+	nvmem_layout: nvmem_layout@0 {
+		compatible = "st,stm32-nvmem-layout";
+
+		nvmem-cells = <&cfg0_otp>,
+			      <&part_number_otp>,
+			      <&monotonic_otp>,
+			      <&nand_otp>,
+			      <&uid_otp>,
+			      <&package_otp>,
+			      <&hw2_otp>;
+
+		nvmem-cell-names = "cfg0_otp",
+				   "part_number_otp",
+				   "monotonic_otp",
+				   "nand_otp",
+				   "uid_otp",
+				   "package_otp",
+				   "hw2_otp";
+	};
+
 	psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";
@@ -457,12 +479,38 @@
 			reg = <0x5c005000 0x400>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+
+			cfg0_otp: cfg0_otp@0 {
+				reg = <0x0 0x1>;
+			};
+			part_number_otp: part_number_otp@4 {
+				reg = <0x4 0x1>;
+			};
+			monotonic_otp: monotonic_otp@10 {
+				reg = <0x10 0x4>;
+			};
+			nand_otp: nand_otp@24 {
+				reg = <0x24 0x4>;
+			};
+			uid_otp: uid_otp@34 {
+				reg = <0x34 0xc>;
+			};
+			package_otp: package_otp@40 {
+				reg = <0x40 0x4>;
+			};
+			hw2_otp: hw2_otp@48 {
+				reg = <0x48 0x4>;
+			};
 			ts_cal1: calib@5c {
 				reg = <0x5c 0x2>;
 			};
 			ts_cal2: calib@5e {
 				reg = <0x5e 0x2>;
 			};
+			mac_addr: mac_addr@e4 {
+				reg = <0xe4 0x8>;
+				st,non-secure-otp;
+			};
 		};
 
 		etzpc: etzpc@5c007000 {
diff --git a/fdts/stm32mp157c-ed1.dts b/fdts/stm32mp157c-ed1.dts
index 5c9818f..2de90d8 100644
--- a/fdts/stm32mp157c-ed1.dts
+++ b/fdts/stm32mp157c-ed1.dts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
- * Copyright (c) 2017-2021, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2017-2022, STMicroelectronics - All Rights Reserved
  * Author: Ludovic Barre <ludovic.barre@st.com> for STMicroelectronics.
  */
 /dts-v1/;
@@ -196,6 +196,26 @@
 	status = "okay";
 };
 
+&nvmem_layout {
+	nvmem-cells = <&cfg0_otp>,
+		      <&part_number_otp>,
+		      <&monotonic_otp>,
+		      <&nand_otp>,
+		      <&uid_otp>,
+		      <&package_otp>,
+		      <&hw2_otp>,
+		      <&board_id>;
+
+	nvmem-cell-names = "cfg0_otp",
+			   "part_number_otp",
+			   "monotonic_otp",
+			   "nand_otp",
+			   "uid_otp",
+			   "package_otp",
+			   "hw2_otp",
+			   "board_id";
+};
+
 &pwr_regulators {
 	vdd-supply = <&vdd>;
 	vdd_3v3_usbfs-supply = <&vdd_usb>;
diff --git a/fdts/stm32mp15xx-dkx.dtsi b/fdts/stm32mp15xx-dkx.dtsi
index 975d749..2eb3a57 100644
--- a/fdts/stm32mp15xx-dkx.dtsi
+++ b/fdts/stm32mp15xx-dkx.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
- * Copyright (c) 2019-2021, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2019-2022, STMicroelectronics - All Rights Reserved
  * Author: Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
  */
 
@@ -183,6 +183,26 @@
 	secure-status = "okay";
 };
 
+&nvmem_layout {
+	nvmem-cells = <&cfg0_otp>,
+		      <&part_number_otp>,
+		      <&monotonic_otp>,
+		      <&nand_otp>,
+		      <&uid_otp>,
+		      <&package_otp>,
+		      <&hw2_otp>,
+		      <&board_id>;
+
+	nvmem-cell-names = "cfg0_otp",
+			   "part_number_otp",
+			   "monotonic_otp",
+			   "nand_otp",
+			   "uid_otp",
+			   "package_otp",
+			   "hw2_otp",
+			   "board_id";
+};
+
 &pwr_regulators {
 	vdd-supply = <&vdd>;
 	vdd_3v3_usbfs-supply = <&vdd_usb>;