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
7 title: Loongson-1C Ethernet MAC Controller
8
9 maintainers:
10 - Keguang Zhang <keguang.zhang@gmail.com>
11
12 description: |
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
24 select:
25 properties:
26 compatible:
27 contains:
28 enum:
29 - loongson,ls1c-emac
30 required:
31 - compatible
32
33 properties:
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
68 required:
69 - compatible
70 - reg
71 - clocks
72 - clock-names
73 - interrupts
74 - interrupt-names
75 - loongson,ls1-syscon
76
77 allOf:
78 - $ref: snps,dwmac.yaml#
79
80 unevaluatedProperties: false
81
82 examples:
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 };
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