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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>;
};
};
};
|
