diff --git a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi
index 92beeea..5dd07ac 100644
--- a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi
@@ -57,6 +57,17 @@
 		clock-names = "fclk";
 	};
 
+	wkup_i2c0: i2c@42120000 {
+		compatible = "ti,j721e-i2c", "ti,omap4-i2c";
+		reg = <0x0 0x42120000 0x0 0x100>;
+		interrupts = <GIC_SPI 896 IRQ_TYPE_LEVEL_HIGH>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clock-names = "fck";
+		clocks = <&k3_clks 197 0>;
+		power-domains = <&k3_pds 197 TI_SCI_PD_EXCLUSIVE>;
+	};
+
 	mcu_uart0: serial@40a00000 {
 		compatible = "ti,j721e-uart", "ti,am654-uart";
 		reg = <0x00 0x40a00000 0x00 0x100>;
diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
index e569809..165c38d 100644
--- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
@@ -93,6 +93,13 @@
 			J721E_WKUP_IOPAD(0xe0, PIN_OUTPUT, 0) /* (G29) WKUP_GPIO0_12.MCU_UART0_TXD */
 		>;
 	};
+
+	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xf8, PIN_INPUT_PULLUP, 0) /* (J25) WKUP_I2C0_SCL */
+			J721E_WKUP_IOPAD(0xfc, PIN_INPUT_PULLUP, 0) /* (H24) WKUP_I2C0_SDA */
+		>;
+	};
 };
 
 &main_pmx0 {
@@ -147,4 +154,29 @@
 	ti,driver-strength-ohm = <50>;
 };
 
+&wkup_i2c0 {
+	u-boot,dm-spl;
+	tps659413a: tps659413a@48 {
+		reg = <0x48>;
+		compatible = "ti,tps659413";
+		u-boot,dm-spl;
+		pinctrl-names = "default";
+		pinctrl-0 = <&wkup_i2c0_pins_default>;
+		clock-frequency = <400000>;
+
+		regulators: regulators {
+			u-boot,dm-spl;
+			buck12_reg: buck12 {
+				/*VDD_MPU*/
+				regulator-name = "buck12";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1250000>;
+				regulator-always-on;
+				regulator-boot-on;
+				u-boot,dm-spl;
+			};
+		};
+	};
+};
+
 #include "k3-j721e-common-proc-board-u-boot.dtsi"