linux-kernel - Re: [PATCH] arm64: dts: ls1028a: fix reboot node

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Message-ID: <20191209034722.GZ3365@dragon>
Date:   Mon, 9 Dec 2019 11:47:23 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Michael Walle <michael@...le.cc>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Li Yang <leoyang.li@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH] arm64: dts: ls1028a: fix reboot node

On Sat, Nov 23, 2019 at 01:07:09AM +0100, Michael Walle wrote:
> The reboot register isn't located inside the DCFG controller, but in its
> own RST controller. Fix it.
> 
> Signed-off-by: Michael Walle <michael@...le.cc>
> ---
>  arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> index 72b9a75976a1..dc75534a4754 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -102,7 +102,7 @@
>  
>  	reboot {
>  		compatible ="syscon-reboot";
> -		regmap = <&dcfg>;
> +		regmap = <&rst>;
>  		offset = <0xb0>;
>  		mask = <0x02>;
>  	};
> @@ -161,6 +161,12 @@
>  			big-endian;
>  		};
>  
> +		rst: syscon@...0000 {
> +			compatible = "fsl,ls1028a-rst", "syscon";

Compatible "fsl,ls1028a-rst" seems undocumented?

Shawn

> +			reg = <0x0 0x1e60000 0x0 0x10000>;
> +			little-endian;
> +		};
> +
>  		scfg: syscon@...0000 {
>  			compatible = "fsl,ls1028a-scfg", "syscon";
>  			reg = <0x0 0x1fc0000 0x0 0x10000>;
> -- 
> 2.20.1
>