linux-kernel - RE: [PATCH 1/2] arm64: dts: imx8mm: Memory node should be in board DT

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Message-ID: <AM0PR04MB4481882847C1233593E84DE8883E0@AM0PR04MB4481.eurprd04.prod.outlook.com>
Date:   Wed, 8 Jan 2020 09:24:25 +0000
From:   Peng Fan <peng.fan@....com>
To:     Anson Huang <anson.huang@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        "S.j. Wang" <shengjiu.wang@....com>, Jacky Bai <ping.bai@....com>,
        Jun Li <jun.li@....com>,
        "aford173@...il.com" <aford173@...il.com>,
        Abel Vesa <abel.vesa@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH 1/2] arm64: dts: imx8mm: Memory node should be in board DT

> Cc: dl-linux-imx <linux-imx@....com>
> Subject: [PATCH 1/2] arm64: dts: imx8mm: Memory node should be in board
> DT
> 
> Memory address/size depends on board design, so memory node should be in
> board DT.

Not sure it really matters, bootloader will update/create memory node of device
tree.

Regards,
Peng.

> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 5 +++++
>  arch/arm64/boot/dts/freescale/imx8mm.dtsi    | 5 -----
>  2 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> index cf044dd..9e54747 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> @@ -16,6 +16,11 @@
>  		stdout-path = &uart2;
>  	};
> 
> +	memory@...00000 {
> +		device_type = "memory";
> +		reg = <0x0 0x40000000 0 0x80000000>;
> +	};
> +
>  	leds {
>  		compatible = "gpio-leds";
>  		pinctrl-names = "default";
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> index a3d179b..1e5e115 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> @@ -140,11 +140,6 @@
>  		};
>  	};
> 
> -	memory@...00000 {
> -		device_type = "memory";
> -		reg = <0x0 0x40000000 0 0x80000000>;
> -	};
> -
>  	osc_32k: clock-osc-32k {
>  		compatible = "fixed-clock";
>  		#clock-cells = <0>;
> --
> 2.7.4