Re: [PATCH 5/7] arm64: dts: lx2160a: add fspi node property

Shawn Guo
2018-09-03T03:02:25Z

On Fri, Aug 31, 2018 at 04:00:02PM +0530, Yogesh Gaur wrote:
> Add fspi node property for LX2160A SoC for FlexSPI driver.
> Property added for the FlexSPI controller and for the connected
> slave device for the LX2160ARDB target.
> This is having two SPI-NOR flash device, mt35xu512aba, connected
> at CS0 and CS1.
>
> Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
> ---
> arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts | 21 +++++++++++++++++++++
> arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 12 ++++++++++++
> 2 files changed, 33 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> index 70fad20..3646315 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> @@ -32,6 +32,27 @@
> status = "okay";
> };
>
> +&fspi {
> + status = "okay";

Have a newline between property and child node.

> + flash0: mt35xu512aba@0 {

Generic name for node, and specific name for label.

> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "m25p80";

Please take a look at bindings doc jedec,spi-nor.txt on how compatible
should be written.

> + m25p,fast-read;
> + spi-max-frequency = <20000000>;
> + reg = <0>;
> + };
> +
> + flash1: mt35xu512aba@1 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "m25p80";
> + m25p,fast-read;
> + spi-max-frequency = <20000000>;
> + reg = <1>;
> + };
> +};
> +
> &i2c0 {
> status = "okay";
> pca9547@77 {
> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> index e35e494..031eb26 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> @@ -568,5 +568,17 @@
> timeout-sec = <30>;
> };
>
> + fspi: flexspi@20c0000 {
> + status = "disabled";

We conventionally put 'status' line at the end of property list.

Shawn

> + compatible = "nxp,lx2160a-fspi";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x0 0x20c0000 0x0 0x10000>,
> + <0x0 0x20000000 0x0 0x10000000>;
> + reg-names = "fspi_base", "fspi_mmap";
> + interrupts = <0 25 0x4>; /* Level high type */
> + clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> + clock-names = "fspi_en", "fspi";
> + };
> };
> };
> --
> 2.7.4
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel