Documentation/devicetree/bindings/mtd/partitions/fixed-partitions.yaml

   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/fixed-partitions.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Fixed partitions
   8
   9 description: |
  10   This binding can be used on platforms which have strong conventions about
  11   which portions of a flash are used for what purposes, but which don't use an
  12   on-flash partition table such as RedBoot.
  13
  14   The partition table should be a node named "partitions". Partitions are then
  15   defined as subnodes.
  16
  17 maintainers:
  18   - Rafał Miłecki <rafal@milecki.pl>
  19
  20 properties:
  21   compatible:
  22     const: fixed-partitions
  23
  24   "#address-cells": true
  25
  26   "#size-cells": true
  27
  28 patternProperties:
  29   "@[0-9a-f]+$":
  30     $ref: "partition.yaml#"
  31
  32 required:
  33   - "#address-cells"
  34   - "#size-cells"
  35
  36 additionalProperties: true
  37
  38 examples:
  39   - |
  40     partitions {
  41         compatible = "fixed-partitions";
  42         #address-cells = <1>;
  43         #size-cells = <1>;
  44
  45         partition@0 {
  46             label = "u-boot";
  47             reg = <0x0000000 0x100000>;
  48             read-only;
  49         };
  50
  51         uimage@100000 {
  52             reg = <0x0100000 0x200000>;
  53         };
  54     };
  55   - |
  56     partitions {
  57         compatible = "fixed-partitions";
  58         #address-cells = <1>;
  59         #size-cells = <2>;
  60
  61         /* a 4 GiB partition */
  62         partition@0 {
  63             label = "filesystem";
  64             reg = <0x00000000 0x1 0x00000000>;
  65         };
  66     };
  67   - |
  68     partitions {
  69         compatible = "fixed-partitions";
  70         #address-cells = <2>;
  71         #size-cells = <2>;
  72
  73         /* an 8 GiB partition */
  74         partition@0 {
  75             label = "filesystem #1";
  76             reg = <0x0 0x00000000 0x2 0x00000000>;
  77         };
  78
  79         /* a 4 GiB partition */
  80         partition@200000000 {
  81             label = "filesystem #2";
  82             reg = <0x2 0x00000000 0x1 0x00000000>;
  83         };
  84     };
  85   - |
  86     partitions {
  87         compatible = "fixed-partitions";
  88         #address-cells = <1>;
  89         #size-cells = <1>;
  90
  91         partition@0 {
  92             label = "bootloader";
  93             reg = <0x000000 0x100000>;
  94             read-only;
  95         };
  96
  97         firmware@100000 {
  98             compatible = "brcm,trx";
  99             label = "firmware";
 100             reg = <0x100000 0xe00000>;
 101         };
 102
 103         calibration@f00000 {
 104             compatible = "fixed-partitions";
 105             label = "calibration";
 106             reg = <0xf00000 0x100000>;
 107             ranges = <0 0xf00000 0x100000>;
 108             #address-cells = <1>;
 109             #size-cells = <1>;
 110
 111             partition@0 {
 112                 label = "wifi0";
 113                 reg = <0x000000 0x080000>;
 114             };
 115
 116             partition@80000 {
 117                 label = "wifi1";
 118                 reg = <0x080000 0x080000>;
 119             };
 120         };
 121     };