netdev - [PATCH v1 3/5] dt-bindings: net: Add HPE GXP UMAC

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Date: Fri, 21 Jul 2023 16:20:42 -0500
From: nick.hawkins@....com
To: verdun@....com, nick.hawkins@....com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 3/5] dt-bindings: net: Add HPE GXP UMAC

From: Nick Hawkins <nick.hawkins@....com>

Provide access to the register regions and interrupt for Universal
MAC(UMAC). The driver under the hpe,gxp-umac binding will provide an
interface for sending and receiving networking data from both of the
UMACs on the system.

Signed-off-by: Nick Hawkins <nick.hawkins@....com>
---
 .../devicetree/bindings/net/hpe,gxp-umac.yaml | 111 ++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/hpe,gxp-umac.yaml

diff --git a/Documentation/devicetree/bindings/net/hpe,gxp-umac.yaml b/Documentation/devicetree/bindings/net/hpe,gxp-umac.yaml
new file mode 100644
index 000000000000..c3b68c4ba7f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/hpe,gxp-umac.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/hpe,gxp-umac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP Unified MAC Controller
+
+maintainers:
+  - Nick Hawkins <nick.hawkins@....com>
+
+description: |
+  HPE GXP 802.3 10/100/1000T Ethernet Unifed MAC controller.
+  Device node of the controller has following properties.
+
+properties:
+  compatible:
+    const: hpe,gxp-umac
+
+  use-ncsi:
+    type: boolean
+    description: |
+      Indicates if the device should use NCSI (Network Controlled
+      Sideband Interface).
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  mac-address: true
+
+  ethernet-ports:
+    type: object
+    additionalProperties: false
+    description: Ethernet ports to PHY
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+    patternProperties:
+      "^port@[0-1]$":
+        type: object
+        additionalProperties: false
+        description: Port to PHY
+
+        properties:
+          reg:
+            minimum: 0
+            maximum: 1
+
+          phy-handle:
+            maxItems: 1
+
+        required:
+          - reg
+          - phy-handle
+
+  mdio:
+    $ref: mdio.yaml#
+    unevaluatedProperties: false
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - ethernet-ports
+
+examples:
+  - |
+    ethernet@...0 {
+      compatible = "hpe,gxp-umac";
+      reg = <0x4000 0x80>;
+      interrupts = <22>;
+      mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
+      ethernet-ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port@0 {
+          reg = <0>;
+          phy-handle = <&eth_phy0>;
+        };
+
+        port@1 {
+          reg = <1>;
+          phy-handle = <&eth_phy1>;
+        };
+      };
+
+      mdio {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        eth_phy0: ethernet-phy@0 {
+          reg = <0>;
+        };
+
+        eth_phy1: ethernet-phy@1 {
+          reg = <1>;
+        };
+      };
+    };
+...
-- 
2.17.1