arm64: dts: renesas: salvator-common: Mark SWDT as reserved

This watchdog can't be used with Linux because the firmware needs it on
Salvator 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/20250925093941.8800-22-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index bbb3583372d043570305cd87ccfc3e8a9004c57c..fa8bfee07b3c821c16787175a1c247340382658e 100644 (file)
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -1004,6 +1004,11 @@
        shared-pin;
 };
 
+/* Firmware should reserve it but sadly doesn't */
+&swdt {
+       status = "reserved";
+};
+
 &usb_extal_clk {
        clock-frequency = <50000000>;
 };