Commit bbbbd1d1 authored by Christian Marangi's avatar Christian Marangi Committed by Herbert Xu
Browse files

dt-bindings: crypto: Add Inside Secure SafeXcel EIP-93 crypto engine 



Add bindings for the Inside Secure SafeXcel EIP-93 crypto engine.

The IP is present on Airoha SoC and on various Mediatek devices and
other SoC under different names like mtk-eip93 or PKTE.

All the compatible that currently doesn't have any user are defined but
rejected waiting for an actual device that makes use of them.

Signed-off-by: default avatarChristian Marangi <ansuelsmth@gmail.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent d6104733

Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.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/inside-secure,safexcel-eip93.yaml#

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



title: Inside Secure SafeXcel EIP-93 cryptographic engine



maintainers:

  - Christian Marangi <ansuelsmth@gmail.com>



description: |

  The Inside Secure SafeXcel EIP-93 is a cryptographic engine IP block

  integrated in varios devices with very different and generic name from

  PKTE to simply vendor+EIP93. The real IP under the hood is actually

  developed by Inside Secure and given to license to vendors.



  The IP block is sold with different model based on what feature are

  needed and are identified with the final letter. Each letter correspond

  to a specific set of feature and multiple letter reflect the sum of the

  feature set.



  EIP-93 models:

    - EIP-93i: (basic) DES/Triple DES, AES, PRNG, IPsec ESP, SRTP, SHA1

    - EIP-93ie: i + SHA224/256, AES-192/256

    - EIP-93is: i + SSL/DTLS/DTLS, MD5, ARC4

    - EIP-93ies: i + e + s

    - EIP-93iw: i + AES-XCB-MAC, AES-CCM



properties:

  compatible:

    oneOf:

      - items:

          - const: airoha,en7581-eip93

          - const: inside-secure,safexcel-eip93ies

      - items:

          - not: {}

            description: Need a SoC specific compatible

          - enum:

              - inside-secure,safexcel-eip93i

              - inside-secure,safexcel-eip93ie

              - inside-secure,safexcel-eip93is

              - inside-secure,safexcel-eip93iw



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/arm-gic.h>



    crypto@1e004000 {

      compatible = "airoha,en7581-eip93", "inside-secure,safexcel-eip93ies";

      reg = <0x1fb70000 0x1000>;



      interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;

    };