Documentation/devicetree/bindings/spi/spi-xilinx.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-xilinx.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Xilinx SPI controller Device Tree Bindings
   8
   9 maintainers:
  10   - Michal Simek <michal.simek@xilinx.com>
  11
  12 allOf:
  13   - $ref: "spi-controller.yaml#"
  14
  15 properties:
  16   compatible:
  17     enum:
  18       - xlnx,xps-spi-2.00.a
  19       - xlnx,xps-spi-2.00.b
  20       - xlnx,axi-quad-spi-1.00.a
  21
  22   reg:
  23     maxItems: 1
  24
  25   interrupts:
  26     maxItems: 1
  27
  28   xlnx,num-ss-bits:
  29     description: Number of chip selects used.
  30     $ref: /schemas/types.yaml#/definitions/uint32
  31     minimum: 1
  32     maximum: 32
  33
  34   xlnx,num-transfer-bits:
  35     description: Number of bits per transfer. This will be 8 if not specified.
  36     $ref: /schemas/types.yaml#/definitions/uint32
  37     enum: [8, 16, 32]
  38     default: 8
  39
  40 required:
  41   - compatible
  42   - reg
  43   - interrupts
  44
  45 unevaluatedProperties: false
  46
  47 examples:
  48   - |
  49     spi0: spi@41e00000 {
  50       compatible = "xlnx,xps-spi-2.00.a";
  51       interrupt-parent = <&intc>;
  52       interrupts = <0 31 1>;
  53       reg = <0x41e00000 0x10000>;
  54       xlnx,num-ss-bits = <0x1>;
  55       xlnx,num-transfer-bits = <32>;
  56     };
  57 ...