loongson,ls1c-emac.yaml

  1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/net/loongson,ls1c-emac.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Loongson-1C Ethernet MAC Controller
  8
  9maintainers:
 10  - Keguang Zhang <keguang.zhang@gmail.com>
 11
 12description: |
 13  Loongson-1C Ethernet MAC Controller is based on
 14  Synopsys DesignWare MAC (version 3.50a).
 15
 16  Main features
 17  - 10/100Mbps
 18  - Full-duplex operation (IEEE 802.3x flow control automatic transmission)
 19  - Half-duplex operation (CSMA/CD Protocol and back-pressure support)
 20  - IEEE 802.1Q VLAN tag detection for reception frames
 21  - MII interface
 22  - RMII interface
 23
 24select:
 25  properties:
 26    compatible:
 27      contains:
 28        enum:
 29          - loongson,ls1c-emac
 30  required:
 31    - compatible
 32
 33properties:
 34  compatible:
 35    items:
 36      - enum:
 37          - loongson,ls1c-emac
 38      - const: snps,dwmac-3.50a
 39
 40  reg:
 41    maxItems: 1
 42
 43  clocks:
 44    maxItems: 1
 45
 46  clock-names:
 47    items:
 48      - const: stmmaceth
 49
 50  interrupts:
 51    maxItems: 1
 52
 53  interrupt-names:
 54    items:
 55      - const: macirq
 56
 57  loongson,ls1-syscon:
 58    $ref: /schemas/types.yaml#/definitions/phandle
 59    description:
 60      Phandle to the syscon containing some extra configurations
 61      including PHY interface mode.
 62
 63  phy-mode:
 64    enum:
 65      - mii
 66      - rmii
 67
 68required:
 69  - compatible
 70  - reg
 71  - clocks
 72  - clock-names
 73  - interrupts
 74  - interrupt-names
 75  - loongson,ls1-syscon
 76
 77allOf:
 78  - $ref: snps,dwmac.yaml#
 79
 80unevaluatedProperties: false
 81
 82examples:
 83  - |
 84    #include <dt-bindings/clock/loongson,ls1x-clk.h>
 85    #include <dt-bindings/interrupt-controller/irq.h>
 86
 87    emac: ethernet@1fe10000 {
 88        compatible = "loongson,ls1c-emac", "snps,dwmac-3.50a";
 89        reg = <0x1fe10000 0x10000>;
 90
 91        clocks = <&clkc LS1X_CLKID_AHB>;
 92        clock-names = "stmmaceth";
 93
 94        interrupt-parent = <&intc1>;
 95        interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
 96        interrupt-names = "macirq";
 97
 98        loongson,ls1-syscon = <&syscon>;
 99
100        phy-handle = <&phy0>;
101        phy-mode = "mii";
102        snps,pbl = <1>;
103
104        mdio {
105            #address-cells = <1>;
106            #size-cells = <0>;
107            compatible = "snps,dwmac-mdio";
108
109            phy0: ethernet-phy@13 {
110                reg = <0x13>;
111            };
112        };
113    };