xref: /linux/Documentation/devicetree/bindings/mtd/partitions/redboot-fis.yaml (revision d5dd580deb54483cce0cb5bbe3f1a132a28c767d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mtd/partitions/redboot-fis.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: RedBoot FLASH Image System (FIS) Partitions
8
9description: The FLASH Image System (FIS) directory is a flash description
10    format closely associated with the RedBoot boot loader.
11    It uses one single flash eraseblock in the flash to store an index of
12    all images in the flash.
13    This block size will vary depending on flash but is typically
14    32 KB in size.
15
16maintainers:
17  - Linus Walleij <linus.walleij@linaro.org>
18
19properties:
20  compatible:
21    const: redboot-fis
22
23  fis-index-block:
24    $ref: /schemas/types.yaml#/definitions/uint32
25    description: a index to the eraseblock containing the FIS directory on this
26      device. On a flash memory with 32KB eraseblocks, 0 means the first
27      eraseblock at 0x00000000, 1 means the second eraseblock at 0x00008000 and so on.
28
29required:
30  - compatible
31  - fis-index-block
32
33additionalProperties: false
34
35examples:
36  - |
37    flash {
38      partitions {
39        compatible = "redboot-fis";
40        fis-index-block = <0>;
41      };
42    };
43