1SMSC/MicroChip LAN9303 three port ethernet switch
2-------------------------------------------------
3
4Required properties:
5
6- compatible: should be
7  - "smsc,lan9303-i2c" for I2C managed mode
8    or
9  - "smsc,lan9303-mdio" for mdio managed mode
10
11Optional properties:
12
13- reset-gpios: GPIO to be used to reset the whole device
14- reset-duration: reset duration in milliseconds, defaults to 200 ms
15
16Subnodes:
17
18The integrated switch subnode should be specified according to the binding
19described in dsa/dsa.txt. The CPU port of this switch is always port 0.
20
21Note: always use 'reg = <0/1/2>;' for the three DSA ports, even if the device is
22configured to use 1/2/3 instead. This hardware configuration will be
23auto-detected and mapped accordingly.
24
25Example:
26
27I2C managed mode:
28
29	master: masterdevice@X {
30		status = "okay";
31
32		fixed-link { /* RMII fixed link to LAN9303 */
33			speed = <100>;
34			full-duplex;
35		};
36	};
37
38	switch: switch@a {
39		compatible = "smsc,lan9303-i2c";
40		reg = <0xa>;
41		status = "okay";
42		reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
43		reset-duration = <200>;
44
45		ports {
46			#address-cells = <1>;
47			#size-cells = <0>;
48
49			port@0 { /* RMII fixed link to master */
50				reg = <0>;
51				label = "cpu";
52				ethernet = <&master>;
53			};
54
55			port@1 { /* external port 1 */
56				reg = <1>;
57				label = "lan1;
58			};
59
60			port@2 { /* external port 2 */
61				reg = <2>;
62				label = "lan2";
63			};
64		};
65	};
66
67MDIO managed mode:
68
69	master: masterdevice@X {
70		status = "okay";
71		phy-handle = <&switch>;
72
73		mdio {
74			#address-cells = <1>;
75			#size-cells = <0>;
76
77			switch: switch-phy@0 {
78				compatible = "smsc,lan9303-mdio";
79				reg = <0>;
80				reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
81				reset-duration = <100>;
82
83				ports {
84					#address-cells = <1>;
85					#size-cells = <0>;
86
87					port@0 {
88						reg = <0>;
89						label = "cpu";
90						ethernet = <&master>;
91					};
92
93					port@1 { /* external port 1 */
94						reg = <1>;
95						label = "lan1;
96					};
97
98					port@2 { /* external port 2 */
99						reg = <2>;
100						label = "lan2";
101					};
102				};
103			};
104		};
105	};
106