Re: [PATCH] lan743x: Added fixed_phy support / Question regarding proper devicetree

From: Roelof Berg
Date: Fri May 01 2020 - 14:14:18 EST


Working status: I added fixed_phy support to the Microchip lan743x ethernet driver and for upstream contribution I need to make it runtime configurable via the device tree.

Question:

There are, amongst other, the following devices on my target (i.mx6):
/soc/aips-bus@2100000/ethernet@2188000
/soc/pcie@1ffc000

Where would I put my additional lan743x ethernet device in the device tree ?

a) /ethernet@0
(Just a new root node.

b) /pci@0/ethernet@0
(I would âinventâ pci@0 to reflect that the lan7431 is sitting on the first pci slot.

c) /soc/pcie@1ffc000/ethernet@0
(That doesnât feel right to me, itâs not a soc property. Or is it ?

Example:

pci0 {
ethernet@0 {
compatible = "rmtl-meu-hlâ;
status = "okayâ;
phy-connection-type = "rgmiiâ;

fixed-link {
speed = <100>;
full-duplex;
};
};

}

Thanks a lot,
Roelof

>
>> [â] device tree is the way to go. [â]
>>
>> Andrew
>