Unverified Commit 727b05e4 authored by Conor Dooley's avatar Conor Dooley Committed by Palmer Dabbelt
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dt-bindings: memory-controllers: add canaan k210 sram controller 



The k210 U-Boot port has been using the clocks defined in the
devicetree to bring up the board's SRAM, but this violates the
dt-schema. As such, move the clocks to a dedicated node with
the same compatible string & document it.

Signed-off-by: default avatarConor Dooley <conor.dooley@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220705215213.1802496-5-mail@conchuod.ie


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 5ec88543

Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/memory-controllers/canaan,k210-sram.yaml#

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



title: Canaan K210 SRAM memory controller



description:

  The Canaan K210 SRAM memory controller is responsible for the system's 8 MiB

  of SRAM. The controller is initialised by the bootloader, which configures

  its clocks, before OS bringup.



maintainers:

  - Conor Dooley <conor@kernel.org>



properties:

  compatible:

    enum:

      - canaan,k210-sram



  clocks:

    minItems: 1

    items:

      - description: sram0 clock

      - description: sram1 clock

      - description: aisram clock



  clock-names:

    minItems: 1

    items:

      - const: sram0

      - const: sram1

      - const: aisram



required:

  - compatible

  - clocks

  - clock-names



additionalProperties: false



examples:

  - |

    #include <dt-bindings/clock/k210-clk.h>

    memory-controller {

        compatible = "canaan,k210-sram";

        clocks = <&sysclk K210_CLK_SRAM0>,

                 <&sysclk K210_CLK_SRAM1>,

                 <&sysclk K210_CLK_AI>;

        clock-names = "sram0", "sram1", "aisram";

    };