Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 # Copyright 2019 BayLibre, SAS
   3 %YAML 1.2
   4 ---
   5 $id: "http://devicetree.org/schemas/spi/amlogic,meson6-spifc.yaml#"
   6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
   7
   8 title: Amlogic Meson SPI Flash Controller
   9
  10 maintainers:
  11   - Neil Armstrong <narmstrong@baylibre.com>
  12
  13 allOf:
  14   - $ref: "spi-controller.yaml#"
  15
  16 description: |
  17   The Meson SPIFC is a controller optimized for communication with SPI
  18   NOR memories, without DMA support and a 64-byte unified transmit /
  19   receive buffer.
  20
  21 properties:
  22   compatible:
  23     enum:
  24       - amlogic,meson6-spifc # SPI Flash Controller on Meson6 and compatible SoCs
  25       - amlogic,meson-gxbb-spifc # SPI Flash Controller on GXBB and compatible SoCs
  26
  27   reg:
  28     maxItems: 1
  29
  30   clocks:
  31     maxItems: 1
  32
  33 required:
  34   - compatible
  35   - reg
  36   - clocks
  37
  38 unevaluatedProperties: false
  39
  40 examples:
  41   - |
  42     spi@c1108c80 {
  43           compatible = "amlogic,meson6-spifc";
  44           reg = <0xc1108c80 0x80>;
  45           clocks = <&clk81>;
  46           #address-cells = <1>;
  47           #size-cells = <0>;
  48
  49           flash: flash@0 {
  50               compatible = "spansion,m25p80", "jedec,spi-nor";
  51               reg = <0>;
  52               spi-max-frequency = <40000000>;
  53           };
  54     };
  55