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Date: Fri, 22 Sep 2023 10:10:54 +0200
From: Alexandre Torgue <alexandre.torgue@...s.st.com>
To: <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251
Add the node to use the ARM SMC watchdog support. It will
use a dedicated smc-id to configure and kick the watchdog.
Signed-off-by: Lionel Debieve <lionel.debieve@...s.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@...s.st.com>
diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index d7cb05d534ac..124403f5f1f4 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -28,6 +28,12 @@
interrupt-parent = <&intc>;
};
+ arm_wdt: watchdog {
+ compatible = "arm,smc-wdt";
+ arm,smc-id = <0xb200005a>;
+ status = "disabled";
+ };
+
clocks {
ck_flexgen_08: ck-flexgen-08 {
#clock-cells = <0>;
--
2.17.1
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