Commit 93726490 authored by Linus Walleij's avatar Linus Walleij Committed by Herbert Xu
Browse files

crypto: ixp4xx - Add DT bindings 



This adds device tree bindings for the ixp4xx crypto engine.

Cc: Corentin Labbe <clabbe@baylibre.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f5a6bf07

Documentation/devicetree/bindings/crypto/intel,ixp4xx-crypto.yaml

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+47 −0
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

# Copyright 2018 Linaro Ltd.

%YAML 1.2

---

$id: "http://devicetree.org/schemas/crypto/intel,ixp4xx-crypto.yaml#"

$schema: "http://devicetree.org/meta-schemas/core.yaml#"



title: Intel IXP4xx cryptographic engine



maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



description: |

  The Intel IXP4xx cryptographic engine makes use of the IXP4xx NPE

  (Network Processing Engine). Since it is not a device on its own

  it is defined as a subnode of the NPE, if crypto support is

  available on the platform.



properties:

  compatible:

    const: intel,ixp4xx-crypto



  intel,npe-handle:

    $ref: '/schemas/types.yaml#/definitions/phandle-array'

    maxItems: 1

    description: phandle to the NPE this crypto engine is using, the cell

      describing the NPE instance to be used.



  queue-rx:

    $ref: /schemas/types.yaml#/definitions/phandle-array

    maxItems: 1

    description: phandle to the RX queue on the NPE, the cell describing

      the queue instance to be used.



  queue-txready:

    $ref: /schemas/types.yaml#/definitions/phandle-array

    maxItems: 1

    description: phandle to the TX READY queue on the NPE, the cell describing

      the queue instance to be used.



required:

  - compatible

  - intel,npe-handle

  - queue-rx

  - queue-txready



additionalProperties: false

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

+18 −4
Original line number Diff line number Diff line
@@ -26,9 +26,16 @@ properties: 


  reg:

    items:

      - description: NPE0 register range

      - description: NPE1 register range

      - description: NPE2 register range

      - description: NPE0 (NPE-A) register range

      - description: NPE1 (NPE-B) register range

      - description: NPE2 (NPE-C) register range



  crypto:

    $ref: /schemas/crypto/intel,ixp4xx-crypto.yaml#

    type: object

    description: Optional node for the embedded crypto engine, the node

      should be named with the instance number of the NPE engine used for

      the crypto engine.



required:

  - compatible
@@ -38,8 +45,15 @@ additionalProperties: false 


examples:

  - |

    npe@c8006000 {

    npe: npe@c8006000 {

         compatible = "intel,ixp4xx-network-processing-engine";

         reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;



         crypto {

             compatible = "intel,ixp4xx-crypto";

             intel,npe-handle = <&npe 2>;

             queue-rx = <&qmgr 30>;

             queue-txready = <&qmgr 29>;

         };

    };

...