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