netdev - [PATCH v1 1/5] dt-bindings: net: Add HPE GXP UMAC MDIO

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Message-Id: <20230721212044.59666-2-nick.hawkins@hpe.com>
Date: Fri, 21 Jul 2023 16:20:40 -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 1/5] dt-bindings: net: Add HPE GXP UMAC MDIO

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-mdio will provide an
interface for managing both the internal and external PHYs.

Signed-off-by: Nick Hawkins <nick.hawkins@....com>
---
 .../bindings/net/hpe,gxp-umac-mdio.yaml       | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/hpe,gxp-umac-mdio.yaml

diff --git a/Documentation/devicetree/bindings/net/hpe,gxp-umac-mdio.yaml b/Documentation/devicetree/bindings/net/hpe,gxp-umac-mdio.yaml
new file mode 100644
index 000000000000..bb0db1bb67b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/hpe,gxp-umac-mdio.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/hpe,gxp-umac-mdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP UMAC MDIO Controller
+
+maintainers:
+  - Nicholas Hawkins <nick.hawkins@....com>
+
+description: |+
+  The HPE GXP Unversal MAC (UMAC) MDIO controller provides a configuration
+  path for both external PHY's and SERDES connected PHY's.
+
+allOf:
+  - $ref: mdio.yaml#
+
+properties:
+  compatible:
+    const: hpe,gxp-umac-mdio
+
+  reg:
+    maxItems: 1
+    description: The register range of the MDIO controller instance
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    mdio0: mdio@...0 {
+      compatible = "hpe,gxp-umac-mdio";
+      reg = <0x4080 0x10>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      ethphy0: ethernet-phy@0 {
+        compatible = "ethernet-phy-ieee802.3-c22";
+        phy-mode = "sgmii";
+        reg = <0>;
+      };
+    };
-- 
2.17.1