diff --git a/fdts/stm32mp257f-ev1.dts b/fdts/stm32mp257f-ev1.dts
index 6df1b30db..d2b5e55bb 100644
--- a/fdts/stm32mp257f-ev1.dts
+++ b/fdts/stm32mp257f-ev1.dts
@@ -37,6 +37,131 @@
 	};
 };
 
+&i2c7 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c7_pins_a>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	clock-frequency = <400000>;
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	pmic2: stpmic@33 {
+		compatible = "st,stpmic2";
+		reg = <0x33>;
+		status = "okay";
+
+		regulators {
+			compatible = "st,stpmic2-regulators";
+
+			vddcpu: buck1 {
+				regulator-name = "vddcpu";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <910000>;
+				regulator-always-on;
+			};
+			vddcore: buck2 {
+				regulator-name = "vddcore";
+				regulator-min-microvolt = <820000>;
+				regulator-max-microvolt = <820000>;
+				regulator-always-on;
+			};
+			vddgpu: buck3 {
+				regulator-name = "vddgpu";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <900000>;
+				regulator-always-on;
+			};
+			vddio_pmic: buck4 {
+				regulator-name = "vddio_pmic";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			v1v8: buck5 {
+				regulator-name = "v1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+			vdd_ddr: buck6 {
+				regulator-name = "vdd_ddr";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+			v3v3: buck7 {
+				regulator-name = "v3v3";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			vdda1v8_aon: ldo1 {
+				regulator-name = "vdda1v8_aon";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+			vdd_emmc: ldo2 {
+				regulator-name = "vdd_emmc";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			vtt_ddr: ldo3 {
+				regulator-name = "vtt_ddr";
+				st,regulator-sink-source;
+			};
+			vdd3v3_usb: ldo4 {
+				regulator-name = "vdd3v3_usb";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			vpp_ddr: ldo5 {
+				regulator-name = "vpp_ddr";
+				regulator-min-microvolt = <2500000>;
+				regulator-max-microvolt = <2500000>;
+				regulator-enable-ramp-delay = <1000>;
+			};
+			vdd_sdcard: ldo7 {
+				regulator-name = "vdd_sdcard";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			vddio_sdcard: ldo8 {
+				regulator-name = "vddio_sdcard";
+				st,regulator-bypass-microvolt = <3300000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			vref_ddr: refddr {
+				regulator-name = "vref_ddr";
+			};
+		};
+	};
+};
+
+&pwr {
+	vddio1: vddio1 {
+		vddio1-supply = <&vddio_sdcard>;
+	};
+	vddio2: vddio2 {
+		vddio2-supply = <&v1v8>;
+	};
+	vddio3: vddio3 {
+		vddio3-supply = <&vddio_pmic>;
+	};
+	vddio4: vddio4 {
+		vddio4-supply = <&vddio_pmic>;
+	};
+	vddio: vddio {
+		vdd-supply = <&vddio_pmic>;
+	};
+};
+
 &sdmmc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdmmc1_b4_pins_a>;