linux-kernel - RE: [RESEND PATCH] arm64: dts: ls1028a: Add DSPI nodes

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Date:   Tue, 23 Jun 2020 23:12:05 +0000
From:   Leo Li <leoyang.li@....com>
To:     Qiang Zhao <qiang.zhao@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Qiang Zhao <qiang.zhao@....com>,
        Xiaowei Bao <xiaowei.bao@....com>
Subject: RE: [RESEND PATCH] arm64: dts: ls1028a: Add DSPI nodes



> -----Original Message-----
> From: Qiang Zhao <qiang.zhao@....com>
> Sent: Monday, June 22, 2020 3:29 AM
> To: shawnguo@...nel.org
> Cc: devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Leo Li
> <leoyang.li@....com>; Qiang Zhao <qiang.zhao@....com>; Xiaowei Bao
> <xiaowei.bao@....com>
> Subject: [RESEND PATCH] arm64: dts: ls1028a: Add DSPI nodes

This patch is actually defining dspi flash nodes for LS1028a-qds board instead of adding dspi nodes for the soc.

> 
> From: Xiaowei Bao <xiaowei.bao@....com>
> 
> Add the DSPI nodes for ls1028a.
> 
> Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
> Signed-off-by: Zhao Qiang <qiang.zhao@....com>
> ---
>  arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 85
> +++++++++++++++++++++++
>  1 file changed, 85 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> index dd69c5b..e4f00c2 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> @@ -107,6 +107,91 @@
>  	};
>  };
> 
> +&dspi0 {
> +	bus-num = <0>;
> +	status = "okay";
> +
> +	flash@0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <0>;
> +		spi-max-frequency = <10000000>;
> +	};
> +
> +	flash@1 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <1>;
> +		spi-max-frequency = <10000000>;
> +	};
> +
> +	flash@2 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <2>;
> +		spi-max-frequency = <10000000>;
> +	};
> +};
> +
> +&dspi1 {
> +	bus-num = <1>;
> +	status = "okay";
> +
> +	flash@0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;

These probably are not needed when no sub nodes are defined.

> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <0>;
> +		spi-max-frequency = <10000000>;
> +	};
> +
> +	flash@1 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <1>;
> +		spi-max-frequency = <10000000>;
> +	};
> +
> +	flash@2 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <2>;
> +		spi-max-frequency = <10000000>;
> +	};
> +};
> +
> +&dspi2 {
> +	bus-num = <2>;
> +	status = "okay";
> +
> +	flash@0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-cpol;
> +		spi-cpha;
> +		reg = <0>;
> +		spi-max-frequency = <10000000>;
> +	};
> +};
> +
>  &duart0 {
>  	status = "okay";
>  };
> --
> 2.7.4