u-boot,env.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/nvmem/u-boot,env.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: U-Boot environment variables
    8 
    9 description: |
   10   U-Boot uses environment variables to store device parameters and
   11   configuration. They may be used for booting process, setup or keeping end user
   12   info.
   13 
   14   Data is stored using U-Boot specific formats (variant specific header and NUL
   15   separated key-value pairs).
   16 
   17   Environment data can be stored on various storage entities, e.g.:
   18   1. Raw flash partition
   19   2. UBI volume
   20 
   21   This binding allows marking storage device (as containing env data) and
   22   specifying used format.
   23 
   24   Right now only flash partition case is covered but it may be extended to e.g.
   25   UBI volumes in the future.
   26 
   27 maintainers:
   28   - Rafał Miłecki <rafal@milecki.pl>
   29 
   30 properties:
   31   compatible:
   32     oneOf:
   33       - description: A standalone env data block
   34         const: u-boot,env
   35       - description: Two redundant blocks with active one flagged
   36         const: u-boot,env-redundant-bool
   37       - description: Two redundant blocks with active having higher counter
   38         const: u-boot,env-redundant-count
   39 
   40   reg:
   41     maxItems: 1
   42 
   43 additionalProperties: false
   44 
   45 examples:
   46   - |
   47     partitions {
   48         compatible = "fixed-partitions";
   49         #address-cells = <1>;
   50         #size-cells = <1>;
   51 
   52         partition@0 {
   53             reg = <0x0 0x40000>;
   54             label = "u-boot";
   55             read-only;
   56         };
   57 
   58         env: partition@40000 {
   59             compatible = "u-boot,env";
   60             reg = <0x40000 0x10000>;
   61         };
   62     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/nvmem/u-boot,env.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/nvmem/u-boot,env.yaml