Commit 7d39f32c authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Herbert Xu
Browse files

dt-bindings: crypto: Convert Marvell CESA to DT schema 



Convert the Marvell CESA binding to DT schema format. The
marvell-cesa.txt and mv_cesa.txt are duplicate bindings.

The clock properties are quite varied for each platform hence the
if/then schemas. The old binding was fairly accurate with reality.

The original binding didn't mention there is 1 interrupt per CESA
engine. Based on users, there's a maximum of 2 engines.

Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 7eff621c

Documentation/devicetree/bindings/crypto/marvell,orion-crypto.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/crypto/marvell,orion-crypto.yaml#

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



title: Marvell Cryptographic Engines And Security Accelerator



maintainers:

  - Andrew Lunn <andrew@lunn.ch>

  - Boris Brezillon <bbrezillon@kernel.org>



description: |

  Marvell Cryptographic Engines And Security Accelerator



properties:

  compatible:

    enum:

      - marvell,armada-370-crypto

      - marvell,armada-xp-crypto

      - marvell,armada-375-crypto

      - marvell,armada-38x-crypto

      - marvell,dove-crypto

      - marvell,kirkwood-crypto

      - marvell,orion-crypto



  reg:

    minItems: 1

    items:

      - description: Registers region

      - description: SRAM region

        deprecated: true



  reg-names:

    minItems: 1

    items:

      - const: regs

      - const: sram

        deprecated: true



  interrupts:

    description: One interrupt for each CESA engine

    minItems: 1

    maxItems: 2



  clocks:

    description: One or two clocks for each CESA engine

    minItems: 1

    maxItems: 4



  clock-names:

    minItems: 1

    items:

      - const: cesa0

      - const: cesa1

      - const: cesaz0

      - const: cesaz1



  marvell,crypto-srams:

    description: Phandle(s) to crypto SRAM.

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

    minItems: 1

    maxItems: 2

    items:

      maxItems: 1



  marvell,crypto-sram-size:

    description: SRAM size reserved for crypto operations.

    $ref: /schemas/types.yaml#/definitions/uint32

    default: 0x800



required:

  - compatible

  - reg

  - reg-names

  - interrupts

  - marvell,crypto-srams



allOf:

  - if:

      not:

        properties:

          compatible:

            enum:

              - marvell,kirkwood-crypto

              - marvell,orion-crypto

    then:

      required:

        - clocks

  - if:

      properties:

        compatible:

          contains:

            enum:

              - marvell,armada-370-crypto

              - marvell,armada-375-crypto

              - marvell,armada-38x-crypto

              - marvell,armada-xp-crypto

    then:

      required:

        - clock-names

  - if:

      properties:

        compatible:

          contains:

            enum:

              - marvell,armada-375-crypto

              - marvell,armada-38x-crypto

    then:

      properties:

        clocks:

          minItems: 4

        clock-names:

          minItems: 4

    else:

      properties:

        clocks:

          maxItems: 2

        clock-names:

          maxItems: 2



additionalProperties: false



examples:

  - |

    crypto@30000 {

        compatible = "marvell,orion-crypto";

        reg = <0x30000 0x10000>;

        reg-names = "regs";

        interrupts = <22>;

        marvell,crypto-srams = <&crypto_sram>;

        marvell,crypto-sram-size = <0x600>;

    };

Documentation/devicetree/bindings/crypto/marvell-cesa.txt

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Marvell Cryptographic Engines And Security Accelerator



Required properties:

- compatible: should be one of the following string

	      "marvell,orion-crypto"

	      "marvell,kirkwood-crypto"

	      "marvell,dove-crypto"

	      "marvell,armada-370-crypto"

	      "marvell,armada-xp-crypto"

	      "marvell,armada-375-crypto"

	      "marvell,armada-38x-crypto"

- reg: base physical address of the engine and length of memory mapped

       region. Can also contain an entry for the SRAM attached to the CESA,

       but this representation is deprecated and marvell,crypto-srams should

       be used instead

- reg-names: "regs". Can contain an "sram" entry, but this representation

	     is deprecated and marvell,crypto-srams should be used instead

- interrupts: interrupt number

- clocks: reference to the crypto engines clocks. This property is not

	  required for orion and kirkwood platforms

- clock-names: "cesaX" and "cesazX", X should be replaced by the crypto engine

	       id.

	       This property is not required for the orion and kirkwoord

	       platforms.

	       "cesazX" clocks are not required on armada-370 platforms

- marvell,crypto-srams: phandle to crypto SRAM definitions



Optional properties:

- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not

			    specified the whole SRAM is used (2KB)





Examples:



	crypto@90000 {

		compatible = "marvell,armada-xp-crypto";

		reg = <0x90000 0x10000>;

		reg-names = "regs";

		interrupts = <48>, <49>;

		clocks = <&gateclk 23>, <&gateclk 23>;

		clock-names = "cesa0", "cesa1";

		marvell,crypto-srams = <&crypto_sram0>, <&crypto_sram1>;

		marvell,crypto-sram-size = <0x600>;

	};

Documentation/devicetree/bindings/crypto/mv_cesa.txt

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Marvell Cryptographic Engines And Security Accelerator



Required properties:

- compatible: should be one of the following string

	      "marvell,orion-crypto"

	      "marvell,kirkwood-crypto"

	      "marvell,dove-crypto"

- reg: base physical address of the engine and length of memory mapped

       region. Can also contain an entry for the SRAM attached to the CESA,

       but this representation is deprecated and marvell,crypto-srams should

       be used instead

- reg-names: "regs". Can contain an "sram" entry, but this representation

	     is deprecated and marvell,crypto-srams should be used instead

- interrupts: interrupt number

- clocks: reference to the crypto engines clocks. This property is only

	  required for Dove platforms

- marvell,crypto-srams: phandle to crypto SRAM definitions



Optional properties:

- marvell,crypto-sram-size: SRAM size reserved for crypto operations, if not

			    specified the whole SRAM is used (2KB)



Examples:



	crypto@30000 {

		compatible = "marvell,orion-crypto";

		reg = <0x30000 0x10000>;

		reg-names = "regs";

		interrupts = <22>;

		marvell,crypto-srams = <&crypto_sram>;

		marvell,crypto-sram-size = <0x600>;

	};