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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/linux,ubi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Unsorted Block Images
description: |
UBI ("Unsorted Block Images") is a volume management system for raw
flash devices which manages multiple logical volumes on a single
physical flash device and spreads the I/O load (i.e wear-leveling)
across the whole flash chip.
maintainers:
- Daniel Golle <daniel@makrotopia.org>
allOf:
- $ref: partition.yaml#
properties:
compatible:
const: linux,ubi
volumes:
type: object
description: UBI Volumes
patternProperties:
"^ubi-volume-.*$":
$ref: /schemas/mtd/partitions/ubi-volume.yaml#
unevaluatedProperties: false
required:
- compatible
unevaluatedProperties: false
examples:
- |
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
reg = <0x0 0x100000>;
label = "bootloader";
read-only;
};
partition@100000 {
reg = <0x100000 0x1ff00000>;
label = "ubi";
compatible = "linux,ubi";
volumes {
ubi-volume-caldata {
volid = <2>;
volname = "rf";
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
eeprom@0 {
reg = <0x0 0x1000>;
};
};
};
};
};
};
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