[PATCH 3/4] dt-bindings: nvmem: u-boot, env: add MAC's #nvmem-cell-cells
Rafał Miłecki
zajec5 at gmail.com
Wed Feb 22 18:22:44 CET 2023
From: Rafał Miłecki <rafal at 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 at milecki.pl>
Reviewed-by: Rob Herring <robh at kernel.org>
---
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..36d97fb87865 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.
+ 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>;
};
};
};
--
2.34.1
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