Commit 2fa72941 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Miquel Raynal
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dt-bindings: mtd: add binding for Linksys Northstar partitions 



Linksys on Broadcom Northstar devices uses fixed flash layout with
multiple firmware partitions.

Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312134919.7767-1-zajec5@gmail.com
parent ac42c46f

Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/mtd/partitions/linksys,ns-partitions.yaml#

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



title: Linksys Northstar partitioning



description: |

  Linksys devices based on Broadcom Northstar architecture often use two

  firmware partitions. One is used for regular booting, the other is treated as

  fallback.



  This binding allows defining all fixed partitions and marking those containing

  firmware. System can use that information e.g. for booting or flashing

  purposes.



maintainers:

  - Rafał Miłecki <rafal@milecki.pl>



properties:

  compatible:

    const: linksys,ns-partitions



  "#address-cells":

    enum: [ 1, 2 ]



  "#size-cells":

    enum: [ 1, 2 ]



patternProperties:

  "^partition@[0-9a-f]+$":

    $ref: "partition.yaml#"

    properties:

      compatible:

        items:

          - const: linksys,ns-firmware

          - const: brcm,trx

    unevaluatedProperties: false



required:

  - "#address-cells"

  - "#size-cells"



additionalProperties: false



examples:

  - |

    partitions {

        compatible = "linksys,ns-partitions";

        #address-cells = <1>;

        #size-cells = <1>;



        partition@0 {

            label = "boot";

            reg = <0x0 0x100000>;

            read-only;

        };



        partition@100000 {

            label = "nvram";

            reg = <0x100000 0x100000>;

        };



        partition@200000 {

            compatible = "linksys,ns-firmware", "brcm,trx";

            reg = <0x200000 0xf00000>;

        };



        partition@1100000 {

            compatible = "linksys,ns-firmware", "brcm,trx";

            reg = <0x1100000 0xf00000>;

        };

    };