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spi: Convert Freescale QSPI binding to json schema
Convert the Freescale QSPI binding to DT schema format using json-schema. Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210312054038.3586706-1-kuldeep.singh@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
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Kuldeep Singh
Mark Brown
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96
Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml
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96
Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml
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@ -0,0 +1,96 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/fsl,spi-fsl-qspi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale Quad Serial Peripheral Interface (QuadSPI)
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maintainers:
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- Han Xu <han.xu@nxp.com>
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allOf:
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- $ref: "spi-controller.yaml#"
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properties:
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compatible:
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oneOf:
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- enum:
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- fsl,vf610-qspi
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- fsl,imx6sx-qspi
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- fsl,imx7d-qspi
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- fsl,imx6ul-qspi
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- fsl,ls1021a-qspi
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- fsl,ls2080a-qspi
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- items:
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- enum:
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- fsl,ls1043a-qspi
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- const: fsl,ls1021a-qspi
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- items:
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- enum:
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- fsl,imx8mq-qspi
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- const: fsl,imx7d-qspi
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reg:
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items:
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- description: registers
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- description: memory mapping
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reg-names:
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items:
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- const: QuadSPI
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- const: QuadSPI-memory
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interrupts:
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maxItems: 1
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clocks:
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items:
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- description: SoC SPI qspi_en clock
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- description: SoC SPI qspi clock
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clock-names:
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items:
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- const: qspi_en
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- const: qspi
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- clocks
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- clock-names
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/clock/fsl,qoriq-clockgen.h>
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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spi@1550000 {
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compatible = "fsl,ls1021a-qspi";
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reg = <0x0 0x1550000 0x0 0x100000>,
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<0x0 0x40000000 0x0 0x10000000>;
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reg-names = "QuadSPI", "QuadSPI-memory";
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interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
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#address-cells = <1>;
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#size-cells = <0>;
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clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(2)>,
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<&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(2)>;
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clock-names = "qspi_en", "qspi";
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flash@0 {
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compatible = "jedec,spi-nor";
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spi-max-frequency = <50000000>;
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reg = <0>;
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spi-rx-bus-width = <4>;
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spi-tx-bus-width = <4>;
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};
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};
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};
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@ -1,66 +0,0 @@
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* Freescale Quad Serial Peripheral Interface(QuadSPI)
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Required properties:
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- compatible : Should be "fsl,vf610-qspi", "fsl,imx6sx-qspi",
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"fsl,imx7d-qspi", "fsl,imx6ul-qspi",
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"fsl,ls1021a-qspi", "fsl,ls2080a-qspi"
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or
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"fsl,ls1043a-qspi" followed by "fsl,ls1021a-qspi"
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- reg : the first contains the register location and length,
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the second contains the memory mapping address and length
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- reg-names: Should contain the reg names "QuadSPI" and "QuadSPI-memory"
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- interrupts : Should contain the interrupt for the device
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- clocks : The clocks needed by the QuadSPI controller
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- clock-names : Should contain the name of the clocks: "qspi_en" and "qspi".
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Required SPI slave node properties:
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- reg: There are two buses (A and B) with two chip selects each.
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This encodes to which bus and CS the flash is connected:
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<0>: Bus A, CS 0
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<1>: Bus A, CS 1
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<2>: Bus B, CS 0
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<3>: Bus B, CS 1
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Example:
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qspi0: quadspi@40044000 {
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compatible = "fsl,vf610-qspi";
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reg = <0x40044000 0x1000>, <0x20000000 0x10000000>;
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reg-names = "QuadSPI", "QuadSPI-memory";
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interrupts = <0 24 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&clks VF610_CLK_QSPI0_EN>,
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<&clks VF610_CLK_QSPI0>;
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clock-names = "qspi_en", "qspi";
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flash0: s25fl128s@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "spansion,s25fl128s", "jedec,spi-nor";
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spi-max-frequency = <50000000>;
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reg = <0>;
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};
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};
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Example showing the usage of two SPI NOR devices on bus A:
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&qspi2 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_qspi2>;
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status = "okay";
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flash0: n25q256a@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "micron,n25q256a", "jedec,spi-nor";
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spi-max-frequency = <29000000>;
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reg = <0>;
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};
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flash1: n25q256a@1 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "micron,n25q256a", "jedec,spi-nor";
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spi-max-frequency = <29000000>;
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reg = <1>;
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};
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};
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@ -7161,6 +7161,7 @@ FREESCALE QUAD SPI DRIVER
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M: Han Xu <han.xu@nxp.com>
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L: linux-spi@vger.kernel.org
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S: Maintained
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F: Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml
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F: drivers/spi/spi-fsl-qspi.c
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FREESCALE QUICC ENGINE LIBRARY
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