linux-kernel - Re: [PATCH v3 4/5] arm64: dts: librem5: protect some partitions of the nor-flash

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Date:   Sun, 7 Mar 2021 21:39:59 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Martin Kepplinger <martin.kepplinger@...i.sm>
Cc:     robh@...nel.org, festevam@...il.com, kernel@...gutronix.de,
        linux-imx@....com, krzk@...nel.org, kernel@...i.sm,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Angus Ainslie <angus@...ea.ca>
Subject: Re: [PATCH v3 4/5] arm64: dts: librem5: protect some partitions of
 the nor-flash

On Fri, Feb 19, 2021 at 11:04:38AM +0100, Martin Kepplinger wrote:
> From: Angus Ainslie <angus@...ea.ca>
> 
> These sections should be read only as they contain important data.
> 
> Signed-off-by: Angus Ainslie <angus@...ea.ca>
> Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>
> ---
>  .../boot/dts/freescale/imx8mq-librem5.dtsi      | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
> index c2bbbdeb93e3..d39ae27c8e42 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
> @@ -258,6 +258,23 @@
>  		compatible = "jedec,spi-nor";
>  		reg = <0>;
>  		spi-max-frequency = <1000000>;
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		partition@0 {
> +			label = "protected0";
> +			reg = <0x0 0x30000>;
> +			read-only;
> +		};
> +		partition@...00 {
> +			label = "protected1";
> +			reg = <0x30000 0x10000>;
> +			read-only;
> +		};

Please have a newline between nodes.

I fixed it up when applying.

Shawn

> +		partition@...00 {
> +			label = "rw";
> +			reg = <0x40000 0x1C0000>;
> +		};
>  	};
>  };
>  
> -- 
> 2.20.1
>