Add support for an nvmem-layout subnode under an eMMC hardware partition. This allows the partition to be exposed as an NVMEM provider and its internal layout to be described. For example, an eMMC boot partition can be used to store device-specific information such as a WiFi MAC address.
Reviewed-by: Rob Herring (Arm) <[email protected]> Signed-off-by: Loic Poulain <[email protected]> --- .../devicetree/bindings/mmc/mmc-card.yaml | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.yaml b/Documentation/devicetree/bindings/mmc/mmc-card.yaml index a61d6c96df759102f9c1fbfd548b026a77921cae..ca907ad73095925b234b119948f94ae81e698c86 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-card.yaml +++ b/Documentation/devicetree/bindings/mmc/mmc-card.yaml @@ -40,6 +40,9 @@ patternProperties: contains: const: fixed-partitions + nvmem-layout: + $ref: /schemas/nvmem/layouts/nvmem-layout.yaml + required: - compatible - reg @@ -86,6 +89,32 @@ examples: read-only; }; }; + + partitions-boot2 { + compatible = "fixed-partitions"; + + #address-cells = <1>; + #size-cells = <1>; + + nvmem-layout { + compatible = "fixed-layout"; + + #address-cells = <1>; + #size-cells = <1>; + + mac-addr@4400 { + compatible = "mac-base"; + reg = <0x4400 0x6>; + #nvmem-cell-cells = <1>; + }; + + bd-addr@5400 { + compatible = "mac-base"; + reg = <0x5400 0x6>; + #nvmem-cell-cells = <1>; + }; + }; + }; }; }; -- 2.34.1
