ARM: dts: stm32: enable the ARM SMC watchdog node in stm32mp135f-dk

On the stm32mp135f-dk board, the IWDG1 is secured and used to monitor
the cortex-A7. Use the ARM SMC watchdog to communicate with it.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Link: https://lore.kernel.org/r/20251031-iwdg1-v2-3-2dc6e0116725@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

diff --git a/arch/arm/boot/dts/st/stm32mp135f-dk.dts b/arch/arm/boot/dts/st/stm32mp135f-dk.dts
index 9764a6bfa5b428c8524a5902c10b7807dda46b3d..f894ee35b3db2c915896cdf47a7a197951e0e21a 100644 (file)
--- a/arch/arm/boot/dts/st/stm32mp135f-dk.dts
+++ b/arch/arm/boot/dts/st/stm32mp135f-dk.dts
@@ -161,6 +161,11 @@
        };
 };
 
+&arm_wdt {
+       timeout-sec = <32>;
+       status = "okay";
+};
+
 &crc1 {
        status = "okay";
 };