linux-kernel - RE: [PATCH v2] arm64: dts: ls1028a: fix reboot node

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Date:   Mon, 9 Dec 2019 19:50:40 +0000
From:   Leo Li <leoyang.li@....com>
To:     Michael Walle <michael@...le.cc>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: RE: [PATCH v2] arm64: dts: ls1028a: fix reboot node



> -----Original Message-----
> From: Michael Walle <michael@...le.cc>
> Sent: Monday, December 9, 2019 12:47 PM
> To: linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org
> Cc: Shawn Guo <shawnguo@...nel.org>; Leo Li <leoyang.li@....com>; Rob
> Herring <robh+dt@...nel.org>; Mark Rutland <mark.rutland@....com>;
> Michael Walle <michael@...le.cc>
> Subject: [PATCH v2] arm64: dts: ls1028a: fix reboot node
> 
> The reboot register isn't located inside the DCFG controller, but in its own RST
> controller. Fix it.
> 
> Fixes: 8897f3255c9c ("arm64: dts: Add support for NXP LS1028A SoC")
> Signed-off-by: Michael Walle <michael@...le.cc>

Acked-by: Li Yang <leoyang.li@....com>

> ---
> 
> changes since v1:
>  - add fixes tag
>  - remove "ls1028a-rst" compatible string, because there is no actual
>    driver for it. It just use the syscon driver.
> 
>  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 8b28fda2ca20..7825550b7cef 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -88,7 +88,7 @@
> 
>  	reboot {
>  		compatible ="syscon-reboot";
> -		regmap = <&dcfg>;
> +		regmap = <&rst>;
>  		offset = <0xb0>;
>  		mask = <0x02>;
>  	};
> @@ -178,6 +178,12 @@
>  			little-endian;
>  		};
> 
> +		rst: syscon@...0000 {
> +			compatible = "syscon";
> +			reg = <0x0 0x1e60000 0x0 0x10000>;
> +			little-endian;
> +		};
> +
>  		scfg: syscon@...0000 {
>  			compatible = "fsl,ls1028a-scfg", "syscon";
>  			reg = <0x0 0x1fc0000 0x0 0x10000>;
> --
> 2.20.1