[PATCH net-next v2 2/3] dt-bindings: net: add T-HEAD dwmac support

[Jisheng Zhang <jszhang@xxxxxxxxxx>]

Add documentation to describe T-HEAD dwmac.

Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
---
 .../devicetree/bindings/net/snps,dwmac.yaml   |  1 +
 .../devicetree/bindings/net/thead,dwmac.yaml  | 77 +++++++++++++++++++
 2 files changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/thead,dwmac.yaml

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index b196c5de2061..73821f86a609 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -96,6 +96,7 @@ properties:
         - snps,dwxgmac
         - snps,dwxgmac-2.10
         - starfive,jh7110-dwmac
+        - thead,th1520-dwmac
 
   reg:
     minItems: 1
diff --git a/Documentation/devicetree/bindings/net/thead,dwmac.yaml b/Documentation/devicetree/bindings/net/thead,dwmac.yaml
new file mode 100644
index 000000000000..bf8ec8ca2753
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/thead,dwmac.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/thead,dwmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: T-HEAD DWMAC Ethernet controller
+
+maintainers:
+  - Jisheng Zhang <jszhang@xxxxxxxxxx>
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - thead,th1520-dwmac
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - thead,th1520-dwmac
+      - const: snps,dwmac-3.70a
+
+  reg:
+    maxItems: 1
+
+  thead,gmacapb:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The phandle to the syscon node that control ethernet
+      interface and timing delay.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - interrupt-names
+  - phy-mode
+  - thead,gmacapb
+
+allOf:
+  - $ref: snps,dwmac.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    gmac0: ethernet@e7070000 {
+        compatible = "thead,th1520-dwmac", "snps,dwmac-3.70a";
+        reg = <0xe7070000 0x2000>;
+        clocks = <&clk 1>, <&clk 2>;
+        clock-names = "stmmaceth", "pclk";
+        interrupts = <66>;
+        interrupt-names = "macirq";
+        phy-mode = "rgmii-id";
+        snps,fixed-burst;
+        snps,axi-config = <&stmmac_axi_setup>;
+        snps,pbl = <32>;
+        thead,gmacapb = <&gmacapb_syscon>;
+        phy-handle = <&phy0>;
+
+        mdio {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            compatible = "snps,dwmac-mdio";
+
+            phy0: ethernet-phy@0 {
+                reg = <0>;
+            };
+        };
+    };
-- 
2.40.1