[PATCH RFC 1/3] dt-bindings: net: Add network-class schema for mac-address properties

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The ethernet-controller schema specifies "mac-address" and
"local-mac-address" but other network devices such as wireless network
adapters use mac addresses as well.
The Devicetree Specification, Release v0.3 specifies in section 4.3.1
a generic "Network Class Binding" with "address-bits", "mac-address",
"local-mac-address" and "max-frame-size". This schema specifies the
"address-bits" property and moves "local-mac-address" and "mac-address"
over from ethernet-controller.yaml.
The schema currently does not restrict MAC address size based on
address-bits.

Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
---
 .../bindings/net/ethernet-controller.yaml          | 18 +---------
 .../devicetree/bindings/net/network-class.yaml     | 40 ++++++++++++++++++++++
 2 files changed, 41 insertions(+), 17 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index 00be387984ac..a5f6a09dfdea 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -17,23 +17,6 @@ properties:
     $ref: /schemas/types.yaml#/definitions/string
     description: Human readable label on a port of a box.
 
-  local-mac-address:
-    description:
-      Specifies the MAC address that was assigned to the network device.
-    $ref: /schemas/types.yaml#/definitions/uint8-array
-    minItems: 6
-    maxItems: 6
-
-  mac-address:
-    description:
-      Specifies the MAC address that was last used by the boot
-      program; should be used in cases where the MAC address assigned
-      to the device by the boot program is different from the
-      local-mac-address property.
-    $ref: /schemas/types.yaml#/definitions/uint8-array
-    minItems: 6
-    maxItems: 6
-
   max-frame-size:
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
@@ -226,6 +209,7 @@ dependencies:
   pcs-handle-names: [pcs-handle]
 
 allOf:
+  - $ref: /schemas/net/network-class.yaml#
   - if:
       properties:
         phy-mode:
diff --git a/Documentation/devicetree/bindings/net/network-class.yaml b/Documentation/devicetree/bindings/net/network-class.yaml
new file mode 100644
index 000000000000..676aec1c458e
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/network-class.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/network-class.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Network Class Bindings
+
+maintainers:
+  - Devicetree Specification Mailing List <devicetree-spec@xxxxxxxxxxxxxxx>
+
+properties:
+  address-bits:
+    description:
+      Specifies number of address bits required to address the device described
+      by this node. This property specifies number of bits in MAC address.
+      If unspecified, the default value is 48.
+    default: 48
+    enum: [48, 64]
+
+  local-mac-address:
+    description:
+      Specifies MAC address that was assigned to the network device described by
+      the node containing this property.
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    minItems: 6
+    maxItems: 8
+
+  mac-address:
+    description:
+      Specifies the MAC address that was last used by the boot program. This
+      property should be used in cases where the MAC address assigned to the
+      device by the boot program is different from the
+      local-mac-address property. This property shall be used only if the value
+      differs from local-mac-address property value.
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    minItems: 6
+    maxItems: 8
+
+additionalProperties: true

-- 
2.39.1




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