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Any requirement of FWU should not require changes to bindings of other subsystems. For example, for mtd-backed storage we can do without requiring 'fixed-partitions' children to also carry 'uuid', a property which is non-standard and not in the bindings. There exists no code yet, so we can change the fwu-mtd bindings to contain all properties within the fwu-mdata node. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Tested-by: Sughosh Ganu <sughosh.ganu@linaro.org>
116 lines
2.8 KiB
YAML
116 lines
2.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/firmware/u-boot,fwu-mdata-mtd.yaml#
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$schema: http://devicetree.org/meta-schemas/base.yaml#
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title: FWU metadata on MTD device without GPT
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maintainers:
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- Jassi Brar <jaswinder.singh@linaro.org>
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properties:
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compatible:
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items:
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- const: u-boot,fwu-mdata-mtd
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fwu-mdata-store:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: Phandle of the MTD device which contains the FWU MetaData and Banks.
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mdata-parts:
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$ref: /schemas/types.yaml#/definitions/non-unique-string-array
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minItems: 2
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maxItems: 2
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description: labels of the primary and secondary FWU metadata partitions in the 'fixed-partitions' subnode of the 'jedec,spi-nor' flash device node.
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patternProperties:
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"fwu-bank[0-9]":
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type: object
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description: List of FWU mtd-backed banks. Typically two banks.
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properties:
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id:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Index of the bank.
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label:
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$ref: /schemas/types.yaml#/definitions/non-unique-string-array
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minItems: 1
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maxItems: 1
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description: label of the partition, in the 'fixed-partitions' subnode of the 'jedec,spi-nor' flash device node, that holds this bank.
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patternProperties:
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"fwu-image[0-9]":
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type: object
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description: List of images in the FWU mtd-backed bank.
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properties:
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id:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Index of the bank.
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offset:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Offset, from start of the bank, where the image is located.
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size:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Size reserved for the image.
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uuid:
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$ref: /schemas/types.yaml#/definitions/non-unique-string-array
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minItems: 1
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maxItems: 1
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description: UUID of the image.
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required:
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- id
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- offset
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- size
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- uuid
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additionalProperties: false
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required:
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- id
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- label
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- fwu-images
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additionalProperties: false
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required:
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- compatible
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- fwu-mdata-store
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- mdata-parts
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- fwu-banks
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additionalProperties: false
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examples:
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- |
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fwu-mdata {
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compatible = "u-boot,fwu-mdata-mtd";
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fwu-mdata-store = <&flash0>;
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mdata-parts = "MDATA-Pri", "MDATA-Sec";
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fwu-bank0 {
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id = <0>;
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label = "FIP-Bank0";
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fwu-image0 {
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id = <0>;
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offset = <0x0>;
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size = <0x400000>;
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uuid = "5a66a702-99fd-4fef-a392-c26e261a2828";
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};
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};
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fwu-bank1 {
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id = <1>;
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label = "FIP-Bank1";
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fwu-image0 {
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id = <0>;
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offset = <0x0>;
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size = <0x400000>;
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uuid = "a8f868a1-6e5c-4757-878d-ce63375ef2c0";
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};
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};
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};
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...
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