linux-kernel - [PATCH v2 1/5] dt-bindings: net: Add HPE GXP UMAC MDIO

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Message-Id: <20230802201824.3683-2-nick.hawkins@hpe.com>
Date:   Wed,  2 Aug 2023 15:18:20 -0500
From:   nick.hawkins@....com
To:     christophe.jaillet@...adoo.fr, simon.horman@...igine.com,
        andrew@...n.ch, 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 v2 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>
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

---

v2:
 * remove |
 * remove unecessary description
---
 .../bindings/net/hpe,gxp-umac-mdio.yaml       | 50 +++++++++++++++++++
 1 file changed, 50 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..a8ab93c681bf
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/hpe,gxp-umac-mdio.yaml
@@ -0,0 +1,50 @@
+# 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
+
+  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