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SubjectRE: [PATCH v5 3/5] arm64: dts: lx2160a: add FlexSPI node property
Date


> -----Original Message-----
> From: devicetree-owner@vger.kernel.org [mailto:devicetree-
> owner@vger.kernel.org] On Behalf Of Yogesh Narayan Gaur
> Sent: Friday, November 16, 2018 4:44 PM
> To: linux-mtd@lists.infradead.org; boris.brezillon@bootlin.com;
> marek.vasut@gmail.com; broonie@kernel.org; linux-spi@vger.kernel.org;
> devicetree@vger.kernel.org
> Cc: robh@kernel.org; mark.rutland@arm.com; shawnguo@kernel.org; linux-
> arm-kernel@lists.infradead.org; computersforpeace@gmail.com;
> frieder.schrempf@kontron.de; linux-kernel@vger.kernel.org; Yogesh Narayan
> Gaur <yogeshnarayan.gaur@nxp.com>
> Subject: [PATCH v5 3/5] arm64: dts: lx2160a: add FlexSPI node property
>
> 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>
> ---
> Changes for v5:
> - None
> Changes for v4:
> - Incorporated Rob review comments.
> Changes for v3:
> - None.
> Changes for v2:
> - - Incorporated Shawn review comments.
> ---
> arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts | 22
> ++++++++++++++++++++++
> arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 13 +++++++++++++
> 2 files changed, 35 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> index 1483071..3b20c97 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> @@ -35,6 +35,28 @@
> status = "okay";
> };
>
> +&fspi {
> + status = "okay";
> +
> + mt35xu512aba0: flash@0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "spansion,m25p80";
> + m25p,fast-read;
> + spi-max-frequency = <20000000>;

The SPI flash supports 50MHz frequency. Please update to 50Mhz

> + reg = <0>;
> + };
> +
> + mt35xu512aba1: flash@1 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "spansion,m25p80";
> + m25p,fast-read;
> + spi-max-frequency = <20000000>;
> + reg = <1>;
> + };
> +};
> +
> &i2c0 {
> status = "okay";
> i2c-mux@77 {
> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> index c758268..5d0025a 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> @@ -698,5 +698,18 @@
> interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
> timeout-sec = <30>;
> };
> +
> + fspi: spi@20c0000 {
> + 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";
> + status = "disabled";
> + };
> };
> };
> --
> 2.7.4

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