xref: /freebsd/sys/contrib/device-tree/Bindings/net/dsa/lantiq-gswip.txt (revision aa1a8ff2d6dbc51ef058f46f3db5a8bb77967145) 
1Lantiq GSWIP Ethernet switches
2==================================
3
4Required properties for GSWIP core:
5
6- compatible	: "lantiq,xrx200-gswip" for the embedded GSWIP in the
7		  xRX200 SoC
8		  "lantiq,xrx300-gswip" for the embedded GSWIP in the
9		  xRX300 SoC
10		  "lantiq,xrx330-gswip" for the embedded GSWIP in the
11		  xRX330 SoC
12- reg		: memory range of the GSWIP core registers
13		: memory range of the GSWIP MDIO registers
14		: memory range of the GSWIP MII registers
15
16See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of
17additional required and optional properties.
18
19
20Required properties for MDIO bus:
21- compatible	: "lantiq,xrx200-mdio" for the MDIO bus inside the GSWIP
22		  core of the xRX200 SoC and the PHYs connected to it.
23
24See Documentation/devicetree/bindings/net/mdio.txt for a list of additional
25required and optional properties.
26
27
28Required properties for GPHY firmware loading:
29- compatible	: "lantiq,xrx200-gphy-fw", "lantiq,gphy-fw"
30		  "lantiq,xrx300-gphy-fw", "lantiq,gphy-fw"
31		  "lantiq,xrx330-gphy-fw", "lantiq,gphy-fw"
32		  for the loading of the firmware into the embedded
33		  GPHY core of the SoC.
34- lantiq,rcu	: reference to the rcu syscon
35
36The GPHY firmware loader has a list of GPHY entries, one for each
37embedded GPHY
38
39- reg		: Offset of the GPHY firmware register in the RCU
40		  register range
41- resets	: list of resets of the embedded GPHY
42- reset-names	: list of names of the resets
43
44Example:
45
46Ethernet switch on the VRX200 SoC:
47
48switch@e108000 {
49	#address-cells = <1>;
50	#size-cells = <0>;
51	compatible = "lantiq,xrx200-gswip";
52	reg = <	0xe108000 0x3100	/* switch */
53		0xe10b100 0xd8		/* mdio */
54		0xe10b1d8 0x130		/* mii */
55		>;
56	dsa,member = <0 0>;
57
58	ports {
59		#address-cells = <1>;
60		#size-cells = <0>;
61
62		port@0 {
63			reg = <0>;
64			label = "lan3";
65			phy-mode = "rgmii";
66			phy-handle = <&phy0>;
67		};
68
69		port@1 {
70			reg = <1>;
71			label = "lan4";
72			phy-mode = "rgmii";
73			phy-handle = <&phy1>;
74		};
75
76		port@2 {
77			reg = <2>;
78			label = "lan2";
79			phy-mode = "internal";
80			phy-handle = <&phy11>;
81		};
82
83		port@4 {
84			reg = <4>;
85			label = "lan1";
86			phy-mode = "internal";
87			phy-handle = <&phy13>;
88		};
89
90		port@5 {
91			reg = <5>;
92			label = "wan";
93			phy-mode = "rgmii";
94			phy-handle = <&phy5>;
95		};
96
97		port@6 {
98			reg = <0x6>;
99			ethernet = <&eth0>;
100		};
101	};
102
103	mdio {
104		#address-cells = <1>;
105		#size-cells = <0>;
106		compatible = "lantiq,xrx200-mdio";
107		reg = <0>;
108
109		phy0: ethernet-phy@0 {
110			reg = <0x0>;
111		};
112		phy1: ethernet-phy@1 {
113			reg = <0x1>;
114		};
115		phy5: ethernet-phy@5 {
116			reg = <0x5>;
117		};
118		phy11: ethernet-phy@11 {
119			reg = <0x11>;
120		};
121		phy13: ethernet-phy@13 {
122			reg = <0x13>;
123		};
124	};
125
126	gphy-fw {
127		compatible = "lantiq,xrx200-gphy-fw", "lantiq,gphy-fw";
128		lantiq,rcu = <&rcu0>;
129		#address-cells = <1>;
130		#size-cells = <0>;
131
132		gphy@20 {
133			reg = <0x20>;
134
135			resets = <&reset0 31 30>;
136			reset-names = "gphy";
137		};
138
139		gphy@68 {
140			reg = <0x68>;
141
142			resets = <&reset0 29 28>;
143			reset-names = "gphy";
144		};
145	};
146};
147