linux-kernel - Re: [PATCH v2 03/13] ARM: dts: imx6qdl-kontron-samx6i: fix board reset

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Message-ID: <Zm+T6HI/ovXq+YjD@dragon>
Date: Mon, 17 Jun 2024 09:39:52 +0800
From: Shawn Guo <shawnguo2@...h.net>
To: Michael Walle <mwalle@...nel.org>
Cc: 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>, Li Yang <leoyang.li@....com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Priit Laes <plaes@...es.org>,
	Michael Grzeschik <m.grzeschik@...gutronix.de>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Marco Felsch <m.felsch@...gutronix.de>, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 03/13] ARM: dts: imx6qdl-kontron-samx6i: fix board
 reset

On Thu, Jun 06, 2024 at 11:01:56AM +0200, Michael Walle wrote:
> On iMX.6 the board is reset by the watchdog. But in turn to do a

s/iMX.6/i.MX6

Shawn

> complete board reset, we have to assert the WDOG_B output which is
> routed also to the CPLD which then do a complete power-cycle of the
> board.
> 
> Fixes: 2125212785c9 ("ARM: dts: imx6qdl-kontron-samx6i: add Kontron SMARC SoM Support")
> Signed-off-by: Michael Walle <mwalle@...nel.org>
> ---
>  arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
> index d6c049b9a9c6..700780bf64f5 100644
> --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
> +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
> @@ -817,5 +817,6 @@ &wdog1 {
>  	/* CPLD is feeded by watchdog (hardwired) */
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_wdog1>;
> +	fsl,ext-reset-output;
>  	status = "okay";
>  };
> -- 
> 2.39.2
>