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-Vitesse VSC73xx Switches
-========================
-
-This defines device tree bindings for the Vitesse VSC73xx switch chips.
-The Vitesse company has been acquired by Microsemi and Microsemi has
-been acquired Microchip but retains this vendor branding.
-
-The currently supported switch chips are:
-Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
-Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
-Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
-Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
-
-This switch could have two different management interface.
-
-If SPI interface is used, the device tree node is an SPI device so it must
-reside inside a SPI bus device tree node, see spi/spi-bus.txt
-
-When the chip is connected to a parallel memory bus and work in memory-mapped
-I/O mode, a platform device is used to represent the vsc73xx. In this case it
-must reside inside a platform bus device tree node.
-
-Required properties:
-
-- compatible: must be exactly one of:
- "vitesse,vsc7385"
- "vitesse,vsc7388"
- "vitesse,vsc7395"
- "vitesse,vsc7398"
-- gpio-controller: indicates that this switch is also a GPIO controller,
- see gpio/gpio.txt
-- #gpio-cells: this must be set to <2> and indicates that we are a twocell
- GPIO controller, see gpio/gpio.txt
-
-Optional properties:
-
-- reset-gpios: a handle to a GPIO line that can issue reset of the chip.
- It should be tagged as active low.
-
-Required subnodes:
-
-See net/dsa/dsa.txt for a list of additional required and optional properties
-and subnodes of DSA switches.
-
-Examples:
-
-SPI:
-switch@0 {
- compatible = "vitesse,vsc7395";
- reg = <0>;
- /* Specified for 2.5 MHz or below */
- spi-max-frequency = <2500000>;
- gpio-controller;
- #gpio-cells = <2>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan1";
- };
- port@1 {
- reg = <1>;
- label = "lan2";
- };
- port@2 {
- reg = <2>;
- label = "lan3";
- };
- port@3 {
- reg = <3>;
- label = "lan4";
- };
- vsc: port@6 {
- reg = <6>;
- ethernet = <&gmac1>;
- phy-mode = "rgmii";
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
- };
-};
-
-Platform:
-switch@2,0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "vitesse,vsc7385";
- reg = <0x2 0x0 0x20000>;
- reset-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan1";
- };
- port@1 {
- reg = <1>;
- label = "lan2";
- };
- port@2 {
- reg = <2>;
- label = "lan3";
- };
- port@3 {
- reg = <3>;
- label = "lan4";
- };
- vsc: port@6 {
- reg = <6>;
- ethernet = <&enet0>;
- phy-mode = "rgmii";
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
- };
-
-};