loongson,ls1b-gmac.yaml

  1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/net/loongson,ls1b-gmac.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Loongson-1B Gigabit Ethernet MAC Controller
  8
  9maintainers:
 10  - Keguang Zhang <keguang.zhang@gmail.com>
 11
 12description: |
 13  Loongson-1B Gigabit Ethernet MAC Controller is based on
 14  Synopsys DesignWare MAC (version 3.50a).
 15
 16  Main features
 17  - Dual 10/100/1000Mbps GMAC controllers
 18  - Full-duplex operation (IEEE 802.3x flow control automatic transmission)
 19  - Half-duplex operation (CSMA/CD Protocol and back-pressure support)
 20  - RX Checksum Offload
 21  - TX Checksum insertion
 22  - MII interface
 23  - RGMII interface
 24
 25select:
 26  properties:
 27    compatible:
 28      contains:
 29        enum:
 30          - loongson,ls1b-gmac
 31  required:
 32    - compatible
 33
 34properties:
 35  compatible:
 36    items:
 37      - enum:
 38          - loongson,ls1b-gmac
 39      - const: snps,dwmac-3.50a
 40
 41  reg:
 42    maxItems: 1
 43
 44  clocks:
 45    maxItems: 1
 46
 47  clock-names:
 48    items:
 49      - const: stmmaceth
 50
 51  interrupts:
 52    maxItems: 1
 53
 54  interrupt-names:
 55    items:
 56      - const: macirq
 57
 58  loongson,ls1-syscon:
 59    $ref: /schemas/types.yaml#/definitions/phandle
 60    description:
 61      Phandle to the syscon containing some extra configurations
 62      including PHY interface mode.
 63
 64  phy-mode:
 65    enum:
 66      - mii
 67      - rgmii-id
 68
 69required:
 70  - compatible
 71  - reg
 72  - clocks
 73  - clock-names
 74  - interrupts
 75  - interrupt-names
 76  - loongson,ls1-syscon
 77
 78allOf:
 79  - $ref: snps,dwmac.yaml#
 80
 81unevaluatedProperties: false
 82
 83examples:
 84  - |
 85    #include <dt-bindings/clock/loongson,ls1x-clk.h>
 86    #include <dt-bindings/interrupt-controller/irq.h>
 87
 88    gmac0: ethernet@1fe10000 {
 89        compatible = "loongson,ls1b-gmac", "snps,dwmac-3.50a";
 90        reg = <0x1fe10000 0x10000>;
 91
 92        clocks = <&clkc LS1X_CLKID_AHB>;
 93        clock-names = "stmmaceth";
 94
 95        interrupt-parent = <&intc1>;
 96        interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
 97        interrupt-names = "macirq";
 98
 99        loongson,ls1-syscon = <&syscon>;
100
101        phy-handle = <&phy0>;
102        phy-mode = "mii";
103        snps,pbl = <1>;
104
105        mdio {
106            #address-cells = <1>;
107            #size-cells = <0>;
108            compatible = "snps,dwmac-mdio";
109
110            phy0: ethernet-phy@0 {
111                reg = <0x0>;
112            };
113        };
114    };