1 Properties for an MDIO bus multiplexer consumer device
3 This is a special case of MDIO mux when MDIO mux is defined as a consumer
4 of a mux producer device. The mux producer can be of any type like mmio mux
5 producer, gpio mux producer or generic register based mux producer.
7 Required properties in addition to the MDIO Bus multiplexer properties:
9 - compatible : should be "mmio-mux-multiplexer"
10 - mux-controls : mux controller node to use for operating the mux
11 - mdio-parent-bus : phandle to the parent MDIO bus.
13 each child node of mdio bus multiplexer consumer device represent a mdio
16 for more information please refer
17 Documentation/devicetree/bindings/mux/mux-controller.txt
18 and Documentation/devicetree/bindings/net/mdio-mux.txt
21 In below example the Mux producer and consumer are separate nodes.
24 fpga@66 { // fpga connected to i2c
25 compatible = "fsl,lx2160aqds-fpga", "fsl,fpga-qixis-i2c",
29 mux: mux-controller { // Mux Producer
30 compatible = "reg-mux";
31 #mux-control-cells = <1>;
32 mux-reg-masks = <0x54 0xf8>, /* 0: reg 0x54, bits 7:3 */
33 <0x54 0x07>; /* 1: reg 0x54, bits 2:0 */
38 mdio-mux-1 { // Mux consumer
39 compatible = "mdio-mux-multiplexer";
40 mux-controls = <&mux 0>;
41 mdio-parent-bus = <&emdio1>;
61 mdio-mux-2 { // Mux consumer
62 compatible = "mdio-mux-multiplexer";
63 mux-controls = <&mux 1>;
64 mdio-parent-bus = <&emdio2>;