netdev - [PATCH net-next v3 2/3] dt-bindings: net: Add tsnep Ethernet controller

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Date:   Fri, 29 Oct 2021 22:07:41 +0200
From:   Gerhard Engleder <gerhard@...leder-embedded.com>
To:     davem@...emloft.net, kuba@...nel.org, andrew@...n.ch
Cc:     netdev@...r.kernel.org,
        Gerhard Engleder <gerhard@...leder-embedded.com>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH net-next v3 2/3] dt-bindings: net: Add tsnep Ethernet controller

The TSN endpoint Ethernet MAC is a FPGA based network device for
real-time communication.

It is integrated as normal Ethernet controller with
ethernet-controller.yaml and mdio.yaml.

Signed-off-by: Gerhard Engleder <gerhard@...leder-embedded.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../bindings/net/engleder,tsnep.yaml          | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/engleder,tsnep.yaml

diff --git a/Documentation/devicetree/bindings/net/engleder,tsnep.yaml b/Documentation/devicetree/bindings/net/engleder,tsnep.yaml
new file mode 100644
index 000000000000..d0e1476e15b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/engleder,tsnep.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/engleder,tsnep.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TSN endpoint Ethernet MAC binding
+
+maintainers:
+  - Gerhard Engleder <gerhard@...leder-embedded.com>
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    const: engleder,tsnep
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  local-mac-address: true
+
+  mac-address: true
+
+  nvmem-cells: true
+
+  nvmem-cells-names: true
+
+  phy-connection-type:
+    enum:
+      - mii
+      - gmii
+      - rgmii
+      - rgmii-id
+
+  phy-mode: true
+
+  phy-handle: true
+
+  mdio:
+    type: object
+    $ref: "mdio.yaml#"
+    description: optional node for embedded MDIO controller
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    axi {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        tnsep0: ethernet@...00000 {
+            compatible = "engleder,tsnep";
+            reg = <0x0 0xa0000000 0x0 0x10000>;
+            interrupts = <0 89 1>;
+            interrupt-parent = <&gic>;
+            local-mac-address = [00 00 00 00 00 00];
+            phy-mode = "rgmii";
+            phy-handle = <&phy0>;
+            mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                suppress-preamble;
+                phy0: ethernet-phy@1 {
+                    reg = <1>;
+                    rxc-skew-ps = <1080>;
+                };
+            };
+        };
+    };
-- 
2.20.1