Commit 7e2805c2 authored Apr 04, 2023 by Rafał Miłecki Committed by Greg Kroah-Hartman Apr 05, 2023

dt-bindings: nvmem: u-boot,env: add MAC's #nvmem-cell-cells



U-Boot's "ethaddr" environment variable is very often used to store
*base* MAC address. It's used as a base for calculating addresses for
multiple interfaces. It's done by adding proper values. Actual offsets
are picked by manufacturers and vary across devices.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230404172148.82422-34-srinivas.kandagatla@linaro.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent c2367aa6

Documentation/devicetree/bindings/nvmem/u-boot,env.yaml

+6 −1

Original line number	Diff line number	Diff line
		@@ -50,7 +50,11 @@ properties:

		ethaddr:
		type: object
		description: Ethernet interface's MAC address
		description: Ethernet interfaces base MAC address.
		properties:
		"#nvmem-cell-cells":
		description: The first argument is a MAC address offset.
		const: 1

		additionalProperties: false

		@@ -72,6 +76,7 @@ examples:
		reg = <0x40000 0x10000>;

		mac: ethaddr {
		#nvmem-cell-cells = <1>;
		};
		};
		};