From 5512618b583670ef2ac17af43eee66745c8885c7 Mon Sep 17 00:00:00 2001 From: Gatien Chevallier Date: Fri, 31 Oct 2025 11:00:41 +0100 Subject: [PATCH] ARM: dts: stm32: add the ARM SMC watchdog in stm32mp131.dtsi Add the arm_wdt node in the stm32mp131.dtsi SoC device tree file. When the platform watchdog is managed by the secure world, SMC calls are used to interact with it. Signed-off-by: Gatien Chevallier Link: https://lore.kernel.org/r/20251031-iwdg1-v2-2-2dc6e0116725@foss.st.com Signed-off-by: Alexandre Torgue --- arch/arm/boot/dts/st/stm32mp131.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/st/stm32mp131.dtsi b/arch/arm/boot/dts/st/stm32mp131.dtsi index a18da1a04fe3..6506b9109b90 100644 --- a/arch/arm/boot/dts/st/stm32mp131.dtsi +++ b/arch/arm/boot/dts/st/stm32mp131.dtsi @@ -29,6 +29,12 @@ interrupt-parent = <&intc>; }; + arm_wdt: watchdog { + compatible = "arm,smc-wdt"; + arm,smc-id = <0xbc000000>; + status = "disabled"; + }; + firmware { optee { method = "smc"; -- 2.47.3