| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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/partition.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Partition |
| 8 | |
| 9 | description: | |
| 10 | This binding describes a single flash partition. Each partition must have its |
| 11 | relative offset and size specified. Depending on partition function extra |
| 12 | properties can be used. |
| 13 | |
| 14 | A partition may be dynamically allocated by a specific parser at runtime. |
| 15 | In this specific case, a specific suffix is required to the node name. |
| 16 | Everything after 'partition-' will be used as the partition name to compare |
| 17 | with the one dynamically allocated by the specific parser. |
| 18 | If the partition contains invalid char a label can be provided that will |
| 19 | be used instead of the node name to make the comparison. |
| 20 | This is used to assign an OF node to the dynamiccally allocated partition |
| 21 | so that subsystem like NVMEM can provide an OF node and declare NVMEM cells. |
| 22 | The OF node will be assigned only if the partition label declared match the |
| 23 | one assigned by the parser at runtime. |
| 24 | |
| 25 | maintainers: |
| 26 | - Rafał Miłecki <rafal@milecki.pl> |
| 27 | |
| 28 | properties: |
| 29 | reg: |
| 30 | description: partition's offset and size within the flash |
| 31 | maxItems: 1 |
| 32 | |
| 33 | label: |
| 34 | description: The label / name for this partition. If omitted, the label |
| 35 | is taken from the node name (excluding the unit address). |
| 36 | |
| 37 | read-only: |
| 38 | description: This parameter, if present, is a hint that this partition |
| 39 | should only be mounted read-only. This is usually used for flash |
| 40 | partitions containing early-boot firmware images or data which should |
| 41 | not be clobbered. |
| 42 | type: boolean |
| 43 | |
| 44 | lock: |
| 45 | description: Do not unlock the partition at initialization time (not |
| 46 | supported on all devices) |
| 47 | type: boolean |
| 48 | |
| 49 | slc-mode: |
| 50 | description: This parameter, if present, allows one to emulate SLC mode |
| 51 | on a partition attached to an MLC NAND thus making this partition |
| 52 | immune to paired-pages corruptions |
| 53 | type: boolean |
| 54 | |
| 55 | linux,rootfs: |
| 56 | description: Marks partition that contains root filesystem to mount and boot |
| 57 | user space from |
| 58 | type: boolean |
| 59 | |
| 60 | if: |
| 61 | not: |
| 62 | required: [ reg ] |
| 63 | then: |
| 64 | properties: |
| 65 | $nodename: |
| 66 | pattern: '^partition-.*$' |
| 67 | |
| 68 | # This is a generic file other binding inherit from and extend |
| 69 | additionalProperties: true |