> + nvmem-cells: > + items: > + - description: nvmem cell address of MAC address of 1st MAC > + - description: nvmem cell address of MAC address of 2nd MAC > + > + nvmem-cell-names: > + description: names corresponding to the nvmem cells of MAC address > + items: > + - const: mac_addr0 > + - const: mac_addr1 These are port properties, so put them in the port section. Also, the name you should use is well defined, "mac-address". See nvmem_get_mac_address(). But you won't be able to use that helper because it take dev, not an of node. Andrew