diff --git a/arch/arm/dts/stm32mp15xx-dhcor-avenger96.dts b/arch/arm/dts/stm32mp15xx-dhcor-avenger96.dts
index a600677563..1b0579c8ab 100644
--- a/arch/arm/dts/stm32mp15xx-dhcor-avenger96.dts
+++ b/arch/arm/dts/stm32mp15xx-dhcor-avenger96.dts
@@ -7,7 +7,7 @@
 
 /dts-v1/;
 
-#include "stm32mp15xx-dhcor.dtsi"
+#include "stm32mp15xx-dhcor-io1v8.dtsi"
 #include "stm32mp15xx-dhcor-avenger96-u-boot.dtsi"
 
 / {
diff --git a/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
new file mode 100644
index 0000000000..75435424d6
--- /dev/null
+++ b/arch/arm/dts/stm32mp15xx-dhcor-io1v8.dtsi
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Copyright (C) 2020 Marek Vasut <marex@denx.de>
+ */
+
+#include "stm32mp15xx-dhcor-io3v3.dtsi"
+
+/ {
+	/* Enpirion EP3A8LQI U2 on the 1V8 IO DHCOR */
+	vdd_io: regulator-buck-io {
+		compatible = "regulator-fixed";
+		regulator-name = "buck-io";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		regulator-boot-on;
+		vin-supply = <&vdd>;
+	};
+};
+
+&pwr_regulators {
+	vdd-supply = <&vdd_io>;
+	vdd_3v3_usbfs-supply = <&vdd_usb>;
+};
diff --git a/arch/arm/dts/stm32mp15xx-dhcor.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-io3v3.dtsi
similarity index 94%
rename from arch/arm/dts/stm32mp15xx-dhcor.dtsi
rename to arch/arm/dts/stm32mp15xx-dhcor-io3v3.dtsi
index 97d370e119..248fc455e3 100644
--- a/arch/arm/dts/stm32mp15xx-dhcor.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dhcor-io3v3.dtsi
@@ -21,17 +21,6 @@
 		device_type = "memory";
 		reg = <0xc0000000 0x40000000>;
 	};
-
-	/* Enpirion EP3A8LQI U2 on the DHCOR */
-	vdd_io: regulator-buck-io {
-		compatible = "regulator-fixed";
-		regulator-name = "buck-io";
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
-		regulator-always-on;
-		regulator-boot-on;
-		vin-supply = <&vdd>;
-	};
 };
 
 &i2c4 {
@@ -200,7 +189,7 @@
 };
 
 &pwr_regulators {
-	vdd-supply = <&vdd_io>;
+	vdd-supply = <&vdd>;
 	vdd_3v3_usbfs-supply = <&vdd_usb>;
 };