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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/loongson,ls1b-gmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson-1B Gigabit Ethernet MAC Controller
+
+maintainers:
+ - Keguang Zhang <keguang.zhang@gmail.com>
+
+description: |
+ Loongson-1B Gigabit Ethernet MAC Controller is based on
+ Synopsys DesignWare MAC (version 3.50a).
+
+ Main features
+ - Dual 10/100/1000Mbps GMAC controllers
+ - Full-duplex operation (IEEE 802.3x flow control automatic transmission)
+ - Half-duplex operation (CSMA/CD Protocol and back-pressure support)
+ - RX Checksum Offload
+ - TX Checksum insertion
+ - MII interface
+ - RGMII interface
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - loongson,ls1b-gmac
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - loongson,ls1b-gmac
+ - const: snps,dwmac-3.50a
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: stmmaceth
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ items:
+ - const: macirq
+
+ loongson,ls1-syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the syscon containing some extra configurations
+ including PHY interface mode.
+
+ phy-mode:
+ enum:
+ - mii
+ - rgmii-id
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - loongson,ls1-syscon
+
+allOf:
+ - $ref: snps,dwmac.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/loongson,ls1x-clk.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ gmac0: ethernet@1fe10000 {
+ compatible = "loongson,ls1b-gmac", "snps,dwmac-3.50a";
+ reg = <0x1fe10000 0x10000>;
+
+ clocks = <&clkc LS1X_CLKID_AHB>;
+ clock-names = "stmmaceth";
+
+ interrupt-parent = <&intc1>;
+ interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+
+ loongson,ls1-syscon = <&syscon>;
+
+ phy-handle = <&phy0>;
+ phy-mode = "mii";
+ snps,pbl = <1>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+
+ phy0: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+ };