diff --git a/arch/arm/dts/meson-sm1-odroid-hc4-u-boot.dtsi b/arch/arm/dts/meson-sm1-odroid-hc4-u-boot.dtsi
new file mode 100644
index 0000000..963bf96
--- /dev/null
+++ b/arch/arm/dts/meson-sm1-odroid-hc4-u-boot.dtsi
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include "meson-sm1-u-boot.dtsi"
+
+&ethmac {
+	snps,reset-gpio = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
+	snps,reset-delays-us = <0 10000 1000000>;
+	snps,reset-active-low;
+};
+
+/* SARADC is needed for proper board variant detection */
+&saradc {
+	status = "okay";
+	vref-supply = <&vddao_1v8>;
+};
+
+&tflash_vdd {
+	gpio = <&gpio_ao GPIOAO_3 GPIO_OPEN_DRAIN>;
+};