Documentation/devicetree/bindings/spi/spi-nxp-fspi.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/spi/spi-nxp-fspi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP Flex Serial Peripheral Interface (FSPI)
   8
   9 maintainers:
  10   - Han Xu <han.xu@nxp.com>
  11   - Kuldeep Singh <singh.kuldeep87k@gmail.com>
  12
  13 allOf:
  14   - $ref: "spi-controller.yaml#"
  15
  16 properties:
  17   compatible:
  18     enum:
  19       - nxp,imx8dxl-fspi
  20       - nxp,imx8mm-fspi
  21       - nxp,imx8mp-fspi
  22       - nxp,imx8qxp-fspi
  23       - nxp,lx2160a-fspi
  24
  25   reg:
  26     items:
  27       - description: registers address space
  28       - description: memory mapped address space
  29
  30   reg-names:
  31     items:
  32       - const: fspi_base
  33       - const: fspi_mmap
  34
  35   interrupts:
  36     maxItems: 1
  37
  38   clocks:
  39     items:
  40       - description: SPI bus clock
  41       - description: SPI serial clock
  42
  43   clock-names:
  44     items:
  45       - const: fspi_en
  46       - const: fspi
  47
  48 required:
  49   - compatible
  50   - reg
  51   - reg-names
  52   - interrupts
  53   - clocks
  54   - clock-names
  55
  56 unevaluatedProperties: false
  57
  58 examples:
  59   - |
  60     #include <dt-bindings/interrupt-controller/arm-gic.h>
  61     #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
  62
  63     soc {
  64         #address-cells = <2>;
  65         #size-cells = <2>;
  66
  67         spi@20c0000 {
  68             compatible = "nxp,lx2160a-fspi";
  69             reg = <0x0 0x20c0000 0x0 0x100000>,
  70                   <0x0 0x20000000 0x0 0x10000000>;
  71             reg-names = "fspi_base", "fspi_mmap";
  72             interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
  73             clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(4)>,
  74                      <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(4)>;
  75             clock-names = "fspi_en", "fspi";
  76             #address-cells = <1>;
  77             #size-cells = <0>;
  78
  79             flash@0 {
  80                 compatible = "jedec,spi-nor";
  81                 spi-max-frequency = <50000000>;
  82                 reg = <0>;
  83                 spi-rx-bus-width = <8>;
  84                 spi-tx-bus-width = <8>;
  85             };
  86         };
  87     };