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

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Date:   Wed, 24 Jun 2020 02:29:42 +0000
From:   Qiang Zhao <qiang.zhao@....com>
To:     Leo Li <leoyang.li@....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>,
        Xiaowei Bao <xiaowei.bao@....com>
Subject: RE: [RESEND PATCH] arm64: dts: ls1028a: Add DSPI nodes

On 2020/6/24, Leo Li <leoyang.li@....com> wrote:

> -----Original Message-----
> From: Leo Li <leoyang.li@....com>
> Sent: 2020年6月24日 7:12
> To: Qiang Zhao <qiang.zhao@....com>; shawnguo@...nel.org
> Cc: devicetree@...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.

Thank you! Will correct next version. 

> 
> >
> > 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

Best Regards
Qiang Zhao