linux-kernel - [PATCH] arm64: dts: freescale: imx93-phycore-som: Fix watchdog reset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250624061323.601550-1-primoz.fiser@norik.com>
Date: Tue, 24 Jun 2025 08:13:23 +0200
From: Primoz Fiser <primoz.fiser@...ik.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	upstream@...ts.phytec.de
Subject: [PATCH] arm64: dts: freescale: imx93-phycore-som: Fix watchdog reset

On phyCORE-i.MX93 SoM, the SoC WDOG_ANY output line is connected to the
external pca9451a PMIC WDOG_B input. Apply pinctrl and set the property
"fsl,ext-reset-output" for watchdog to trigger board reset via PMIC on
timeout/reset.

Signed-off-by: Primoz Fiser <primoz.fiser@...ik.com>
---
 arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
index 5ee52774e7bf..729c26f9ac94 100644
--- a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
@@ -191,6 +191,9 @@ &usdhc1 {
 
 /* Watchdog */
 &wdog3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
 	status = "okay";
 };
 
@@ -279,4 +282,10 @@ MX93_PAD_SD1_DATA7__USDHC1_DATA7	0x400013be
 			MX93_PAD_SD1_STROBE__USDHC1_STROBE	0x179e
 		>;
 	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX93_PAD_WDOG_ANY__WDOG1_WDOG_ANY	0x31e
+		>;
+	};
 };
-- 
2.34.1