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SMSC/MicroChip LAN9303 three port ethernet switch
-------------------------------------------------
Required properties:
- compatible: should be
- "smsc,lan9303-i2c" for I2C managed mode
or
- "smsc,lan9303-mdio" for mdio managed mode
Optional properties:
- reset-gpios: GPIO to be used to reset the whole device
- reset-duration: reset duration in milliseconds, defaults to 200 ms
Subnodes:
The integrated switch subnode should be specified according to the binding
described in dsa/dsa.txt. The CPU port of this switch is always port 0.
Note: always use 'reg = <0/1/2>;' for the three DSA ports, even if the device is
configured to use 1/2/3 instead. This hardware configuration will be
auto-detected and mapped accordingly.
Example:
I2C managed mode:
master: masterdevice@X {
status = "okay";
fixed-link { /* RMII fixed link to LAN9303 */
speed = <100>;
full-duplex;
};
};
switch: switch@a {
compatible = "smsc,lan9303-i2c";
reg = <0xa>;
status = "okay";
reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
reset-duration = <200>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 { /* RMII fixed link to master */
reg = <0>;
label = "cpu";
ethernet = <&master>;
};
port@1 { /* external port 1 */
reg = <1>;
label = "lan1;
};
port@2 { /* external port 2 */
reg = <2>;
label = "lan2";
};
};
};
MDIO managed mode:
master: masterdevice@X {
status = "okay";
phy-handle = <&switch>;
mdio {
#address-cells = <1>;
#size-cells = <0>;
switch: switch-phy@0 {
compatible = "smsc,lan9303-mdio";
reg = <0>;
reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
reset-duration = <100>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
label = "cpu";
ethernet = <&master>;
};
port@1 { /* external port 1 */
reg = <1>;
label = "lan1;
};
port@2 { /* external port 2 */
reg = <2>;
label = "lan2";
};
};
};
};
};
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