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
7 title: Loongson-1B Gigabit Ethernet MAC Controller
8
9 maintainers:
10 - Keguang Zhang <keguang.zhang@gmail.com>
11
12 description: |
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
25 select:
26 properties:
27 compatible:
28 contains:
29 enum:
30 - loongson,ls1b-gmac
31 required:
32 - compatible
33
34 properties:
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
69 required:
70 - compatible
71 - reg
72 - clocks
73 - clock-names
74 - interrupts
75 - interrupt-names
76 - loongson,ls1-syscon
77
78 allOf:
79 - $ref: snps,dwmac.yaml#
80
81 unevaluatedProperties: false
82
83 examples:
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 };
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