diff --git a/dts/arm/antmicro/myra.dtsi b/dts/arm/antmicro/myra.dtsi
index 70f8beabecf..b47778ed4b4 100644
--- a/dts/arm/antmicro/myra.dtsi
+++ b/dts/arm/antmicro/myra.dtsi
@@ -14,4 +14,12 @@
 		     &spi2_miso_pb14 &spi2_mosi_pb15>;
 	pinctrl-names = "default";
 	status = "okay";
+
+	mb85rs1mt: mb85rs1mt@0 {
+		status = "okay";
+		compatible = "fujitsu,mb85rsxx";
+		reg = <0>;
+		spi-max-frequency = <DT_FREQ_M(25)>;
+		size = <DT_SIZE_K(128)>;
+	};
 };