dt-bindings: net: convert enetc to yaml

Convert enetc device binding file to yaml. Split to 3 yaml files,
'fsl,enetc.yaml', 'fsl,enetc-mdio.yaml', 'fsl,enetc-ierb.yaml'.

Additional Changes:
- Add pci<vendor id>,<production id> in compatible string.
- Ref to common ethernet-controller.yaml and mdio.yaml.
- Add Wei fang, Vladimir and Claudiu as maintainer.
- Update ENETC description.
- Remove fixed-link part.

Signed-off-by: Frank Li <[email protected]>
Reviewed-by: Rob Herring (Arm) <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: nxpfrankli

Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/fsl,enetc-ierb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Integrated Endpoint Register Block
+
+description:
+  The fsl_enetc driver can probe on the Integrated Endpoint Register Block,
+  which preconfigures the FIFO limits for the ENETC ports.
+
+maintainers:
+  - Frank Li <[email protected]>
+  - Vladimir Oltean <[email protected]>
+  - Wei Fang <[email protected]>
+  - Claudiu Manoil <[email protected]>
+
+properties:
+  compatible:
+    enum:
+      - fsl,ls1028a-enetc-ierb
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    endpoint-config@f0800000 {
+        compatible = "fsl,ls1028a-enetc-ierb";
+        reg = <0xf0800000 0x10000>;
+    };

Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/fsl,enetc-mdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ENETC external MDIO PCIe endpoint device
+
+description:
+  NETC provides an external master MDIO interface (EMDIO) for managing external
+  devices (PHYs). EMDIO supports both Clause 22 and 45 protocols. And the EMDIO
+  provides a means for different software modules to share a single set of MDIO
+  signals to access their PHYs.
+
+maintainers:
+  - Frank Li <[email protected]>
+  - Vladimir Oltean <[email protected]>
+  - Wei Fang <[email protected]>
+  - Claudiu Manoil <[email protected]>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - pci1957,ee01
+      - const: fsl,enetc-mdio
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: mdio.yaml
+  - $ref: /schemas/pci/pci-device.yaml
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    pcie{
+        #address-cells = <3>;
+        #size-cells = <2>;
+
+        mdio@0,3 {
+            compatible = "pci1957,ee01", "fsl,enetc-mdio";
+            reg = <0x000300 0 0 0 0>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ethernet-phy@2 {
+                reg = <0x2>;
+            };
+        };
+    };

Documentation/devicetree/bindings/net/fsl,enetc.yaml

@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/fsl,enetc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: The NIC functionality of NXP NETC
+
+description:
+  The NIC functionality in NETC is known as EtherNET Controller (ENETC). ENETC
+  supports virtualization/isolation based on PCIe Single Root IO Virtualization
+  (SR-IOV), advanced QoS with 8 traffic classes and 4 drop resilience levels,
+  and a full range of TSN standards and NIC offload capabilities
+
+maintainers:
+  - Frank Li <[email protected]>
+  - Vladimir Oltean <[email protected]>
+  - Wei Fang <[email protected]>
+  - Claudiu Manoil <[email protected]>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - pci1957,e100
+      - const: fsl,enetc
+
+  reg:
+    maxItems: 1
+
+  mdio:
+    $ref: mdio.yaml
+    unevaluatedProperties: false
+    description: Optional child node for ENETC instance, otherwise use NETC EMDIO.
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: /schemas/pci/pci-device.yaml
+  - $ref: ethernet-controller.yaml
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    pcie {
+        #address-cells = <3>;
+        #size-cells = <2>;
+
+        ethernet@0,0 {
+            compatible = "pci1957,e100", "fsl,enetc";
+            reg = <0x000000 0 0 0 0>;
+            phy-handle = <&sgmii_phy0>;
+            phy-connection-type = "sgmii";
+
+            mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                phy@2 {
+                    reg = <0x2>;
+                };
+            };
+        };
+    };