diff --git a/arch/arm64/boot/dts/renesas/condor-common.dtsi b/arch/arm64/boot/dts/renesas/condor-common.dtsi
index 9fe9c722187d..38d486e7b8c3 100644
--- a/arch/arm64/boot/dts/renesas/condor-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/condor-common.dtsi
@@ -554,3 +554,8 @@
 &scif_clk {
 	clock-frequency = <14745600>;
 };
+
+/* Firmware should reserve it but sadly doesn't */
+&swdt {
+	status = "reserved";
+};
diff --git a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts
index 2da63b4daa0a..87a9bb44cad6 100644
--- a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts
@@ -289,3 +289,8 @@
 &scif_clk {
 	clock-frequency = <14745600>;
 };
+
+/* Firmware should reserve it but sadly doesn't */
+&swdt {
+	status = "reserved";
+};