Documentation/devicetree/bindings/firmware/intel,ixp4xx-network-processing-engine.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 # Copyright 2019 Linaro Ltd.
   3 %YAML 1.2
   4 ---
   5 $id: "http://devicetree.org/schemas/firmware/intel,ixp4xx-network-processing-engine.yaml#"
   6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
   7
   8 title: Intel IXP4xx Network Processing Engine
   9
  10 maintainers:
  11   - Linus Walleij <linus.walleij@linaro.org>
  12
  13 description: |
  14   On the IXP4xx SoCs, the Network Processing Engine (NPE) is a small
  15   processor that can load a firmware to perform offloading of networking
  16   and crypto tasks. It also manages the MDIO bus to the ethernet PHYs
  17   on the IXP4xx platform. All IXP4xx platforms have three NPEs at
  18   consecutive memory locations. They are all included in the same
  19   device node since they are not independent of each other.
  20
  21 properties:
  22   compatible:
  23     oneOf:
  24       - items:
  25           - const: intel,ixp4xx-network-processing-engine
  26
  27   reg:
  28     items:
  29       - description: NPE0 register range
  30       - description: NPE1 register range
  31       - description: NPE2 register range
  32
  33 required:
  34   - compatible
  35   - reg
  36
  37 additionalProperties: false
  38
  39 examples:
  40   - |
  41     npe@c8006000 {
  42          compatible = "intel,ixp4xx-network-processing-engine";
  43          reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
  44     };
  45 ...