From 1d53afe3875e123beac955135ca01e6664aa5969 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Sun, 11 Jun 2023 15:03:07 +0100 Subject: [PATCH] dt-bindings: nvmem: brcm,nvram: add #nvmem-cell-cells for MACs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Broadcom's NVRAM contains MACs for Ethernet interfaces. Those MACs are usually base addresses that are also used for calculating other MACs. For example if a router vendor decided to use gmac0 it most likely programmed NVRAM of each unit with a proper "et0macaddr" value. That is a base. Ethernet interface is usually connected to switch port. Switch usually includes few LAN ports and a WAN port. MAC of WAN port gets calculated as relative address to the interface one. Offset varies depending on device model. Wireless MACs may also need to be calculated using relevant offsets. To support all those scenarios let MAC NVMEM cells be referenced with an index specifying MAC offset. Disallow additionalProperties while at it. Signed-off-by: Rafał Miłecki Reviewed-by: Rob Herring Signed-off-by: Srinivas Kandagatla Message-ID: <20230611140330.154222-4-srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/nvmem/brcm,nvram.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml b/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml index 36def7128fca8..13412af7f0466 100644 --- a/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml +++ b/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml @@ -36,14 +36,29 @@ properties: et0macaddr: type: object description: First Ethernet interface's MAC address + properties: + "#nvmem-cell-cells": + description: The first argument is a MAC address offset. + const: 1 + additionalProperties: false et1macaddr: type: object description: Second Ethernet interface's MAC address + properties: + "#nvmem-cell-cells": + description: The first argument is a MAC address offset. + const: 1 + additionalProperties: false et2macaddr: type: object description: Third Ethernet interface's MAC address + properties: + "#nvmem-cell-cells": + description: The first argument is a MAC address offset. + const: 1 + additionalProperties: false unevaluatedProperties: false -- 2.30.2