Subject: Re: [PATCH] arm64: dts: ls1088a: Add QSPI support

From: Shawn Guo <[email-masked]>
Date: Thu, 23 May 2019 16:48:09 +0800

On Thu, May 16, 2019 at 11:47:07AM +0000, Kuldeep Singh wrote:
> QSPI support is added for kernel version greater than 5.0 and supports
> quad mode defined by
> TX-WIDTH = <4>, RX-WIDTH = <4>
> 
> RDB/QDS has two 64MB flash from SPANSION(s25fs512s)
> 
> Signed-off-by: Ashish Kumar <[email-masked]>
> Signed-off-by: Kuldeep Singh <[email-masked]>
> ---
> Dependency on https://patchwork.ozlabs.org/patch/1100471/
> Dependency on https://patchwork.ozlabs.org/patch/1100472/

Please send dts changes only after dependencies get accepted.

Shawn

> 
>  .../boot/dts/freescale/fsl-ls1088a-qds.dts    | 26 +++++++++++++++++++
>  .../boot/dts/freescale/fsl-ls1088a-rdb.dts    | 26 +++++++++++++++++++
>  .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 13 ++++++++++
>  3 files changed, 65 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts
> index 6f48d21b97c0..f01f7fca9df7 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts
> @@ -98,6 +98,32 @@
>  	};
>  };
>  
> +&qspi {
> +	status = "okay";
> +
> +	qflash0: flash@0 {
> +		compatible = "spansion,m25p80", "jedec,spi-nor";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		m25p,fast-read;
> +		spi-max-frequency = <20000000>;
> +		spi-rx-bus-width = <4>;
> +		spi-tx-bus-width = <4>;
> +		reg = <0>;
> +	};
> +
> +	qflash1: flash@1 {
> +		compatible = "spansion,m25p80", "jedec,spi-nor";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		m25p,fast-read;
> +		spi-max-frequency = <20000000>;
> +		spi-rx-bus-width = <4>;
> +		spi-tx-bus-width = <4>;
> +		reg = <1>;
> +	};
> +};
> +
>  &duart0 {
>  	status = "okay";
>  };
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> index 8e925df6c01c..bdec7e996dbe 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
> @@ -74,6 +74,32 @@
>  	};
>  };
>  
> +&qspi {
> +	status = "okay";
> +
> +	qflash0: flash@0 {
> +		compatible = "spansion,m25p80", "jedec,spi-nor";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		m25p,fast-read;
> +		spi-max-frequency = <20000000>;
> +		spi-rx-bus-width = <4>;
> +		spi-tx-bus-width = <4>;
> +		reg = <0>;
> +	};
> +
> +	qflash1: flash@1  {
> +		compatible = "spansion,m25p80", "jedec,spi-nor";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		m25p,fast-read;
> +		spi-max-frequency = <20000000>;
> +		spi-rx-bus-width = <4>;
> +		spi-tx-bus-width = <4>;
> +		reg = <1>;
> +	};
> +};
> +
>  &duart0 {
>  	status = "okay";
>  };
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> index 661137ffa319..96424fd9cd2e 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> @@ -318,6 +318,19 @@
>  			status = "disabled";
>  		};
>  
> +		qspi: spi@20c0000 {
> +			status = "disabled";
> +			compatible = "fsl,ls2080a-qspi", "fsl,ls1088a-qspi";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <0x0 0x20c0000 0x0 0x10000>,
> +			      <0x0 0x20000000 0x0 0x10000000>;
> +			reg-names = "QuadSPI", "QuadSPI-memory";
> +			interrupts = <0 25 0x4>; /* Level high type */
> +			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +			clock-names = "qspi_en", "qspi";
> +		};
> +
>  		i2c0: i2c@2000000 {
>  			compatible = "fsl,vf610-i2c";
>  			#address-cells = <1>;
> -- 
> 2.17.1
> 

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