diff --git a/arch/arm64/boot/dts/ti/k3-j742s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j742s2-mcu-wakeup.dtsi
new file mode 100644
index 000000000000..61db2348d6a4
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j742s2-mcu-wakeup.dtsi
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Device Tree Source for J742S2 SoC Family
+ *
+ * TRM: https://www.ti.com/lit/pdf/spruje3
+ *
+ * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ */
+
+&mcu_r5fss0_core0 {
+	firmware-name = "j742s2-mcu-r5f0_0-fw";
+};
+
+&mcu_r5fss0_core1 {
+	firmware-name = "j742s2-mcu-r5f0_1-fw";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j742s2.dtsi b/arch/arm64/boot/dts/ti/k3-j742s2.dtsi
index 7a72f82f56d6..d265df1abade 100644
--- a/arch/arm64/boot/dts/ti/k3-j742s2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j742s2.dtsi
@@ -96,3 +96,4 @@ cpu3: cpu@3 {
 };
 
 #include "k3-j742s2-main.dtsi"
+#include "k3-j742s2-mcu-wakeup.dtsi"