[PATCH 1/3] dt-bindings: nvmem: u-boot, env: add MAC's #nvmem-cell-cells

From: Rafał Miłecki rafal@milecki.pl

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 --- Documentation/devicetree/bindings/nvmem/u-boot,env.yaml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml index cbc5c69fd405..1c139bd689ea 100644 --- a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml +++ b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml @@ -50,7 +50,11 @@ properties:

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

additionalProperties: false

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

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