arm64: dts: renesas: ebisu: Mark SWDT as reserved

This watchdog can't be used with Linux because the firmware needs it on
Ebisu boards. Sadly, it doesn't mark the node as reserved, so this is
added manually here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-25-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/ebisu.dtsi b/arch/arm64/boot/dts/renesas/ebisu.dtsi
index c4c86344fb90507b284e2cfdb211062b824c9604..adc4449b809ad896547f50fa384dd4a2a138ee70 100644 (file)
--- a/arch/arm64/boot/dts/renesas/ebisu.dtsi
+++ b/arch/arm64/boot/dts/renesas/ebisu.dtsi
@@ -858,6 +858,11 @@
        shared-pin;
 };
 
+/* Firmware should reserve it but sadly doesn't */
+&swdt {
+       status = "reserved";
+};
+
 &usb2_phy0 {
        pinctrl-0 = <&usb0_pins>;
        pinctrl-names = "default";