xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/net/mdio-gpio.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593SmuzhiyunMDIO on GPIOs
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunCurrently defined compatibles:
4*4882a593Smuzhiyun- virtual,gpio-mdio
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunMDC and MDIO lines connected to GPIO controllers are listed in the
7*4882a593Smuzhiyungpios property as described in section VIII.1 in the following order:
8*4882a593Smuzhiyun
9*4882a593SmuzhiyunMDC, MDIO.
10*4882a593Smuzhiyun
11*4882a593SmuzhiyunNote: Each gpio-mdio bus should have an alias correctly numbered in "aliases"
12*4882a593Smuzhiyunnode.
13*4882a593Smuzhiyun
14*4882a593SmuzhiyunExample:
15*4882a593Smuzhiyun
16*4882a593Smuzhiyunaliases {
17*4882a593Smuzhiyun	mdio-gpio0 = &mdio0;
18*4882a593Smuzhiyun};
19*4882a593Smuzhiyun
20*4882a593Smuzhiyunmdio0: mdio {
21*4882a593Smuzhiyun	compatible = "virtual,mdio-gpio";
22*4882a593Smuzhiyun	#address-cells = <1>;
23*4882a593Smuzhiyun	#size-cells = <0>;
24*4882a593Smuzhiyun	gpios = <&qe_pio_a 11
25*4882a593Smuzhiyun		 &qe_pio_c 6>;
26*4882a593Smuzhiyun};
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