1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mtd/partitions/linux,ubi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Unsorted Block Images
8
9 description: |
10 UBI ("Unsorted Block Images") is a volume management system for raw
11 flash devices which manages multiple logical volumes on a single
12 physical flash device and spreads the I/O load (i.e wear-leveling)
13 across the whole flash chip.
14
15 maintainers:
16 - Daniel Golle <daniel@makrotopia.org>
17
18 allOf:
19 - $ref: partition.yaml#
20
21 properties:
22 compatible:
23 const: linux,ubi
24
25 volumes:
26 type: object
27 description: UBI Volumes
28
29 patternProperties:
30 "^ubi-volume-.*$":
31 $ref: /schemas/mtd/partitions/ubi-volume.yaml#
32
33 unevaluatedProperties: false
34
35 required:
36 - compatible
37
38 unevaluatedProperties: false
39
40 examples:
41 - |
42 partitions {
43 compatible = "fixed-partitions";
44 #address-cells = <1>;
45 #size-cells = <1>;
46
47 partition@0 {
48 reg = <0x0 0x100000>;
49 label = "bootloader";
50 read-only;
51 };
52
53 partition@100000 {
54 reg = <0x100000 0x1ff00000>;
55 label = "ubi";
56 compatible = "linux,ubi";
57
58 volumes {
59 ubi-volume-caldata {
60 volid = <2>;
61 volname = "rf";
62
63 nvmem-layout {
64 compatible = "fixed-layout";
65 #address-cells = <1>;
66 #size-cells = <1>;
67
68 eeprom@0 {
69 reg = <0x0 0x1000>;
70 };
71 };
72 };
73 };
74 };
75 };
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