How to activate phyless linux ethernet driver

rabipaikaray · 01-14-2014, 01:56 AM

I was trying to activate Linux phyless Ethernet driver. There are no much information on net. I am using ARM based Linux kernel SOC is connected to a 1GBPS RGMII port back to back without having a real PHY. Came to know Linux has fixed phy support. Some of the files have used fixed_phy_add function. But still not getting clear idea how to activate. Any kind of help or pointer will really help here.

Mara · 01-16-2014, 03:51 PM

Look for the example at http://lxr.free-electrons.com/source...e/m5272.c#L127 (at the end of file). You need to fill the structure with the parameters of the default parameters and you run fixed_phy_add. What kind of doubts do you have? Do you have any problems making it work?

rabipaikaray · 01-24-2014, 06:40 AM

Quote:

Originally Posted by Mara

Look for the example at http://lxr.free-electrons.com/source...e/m5272.c#L127 (at the end of file). You need to fill the structure with the parameters of the default parameters and you run fixed_phy_add. What kind of doubts do you have? Do you have any problems making it work?

Thanks for your reply .
I have a ARM based platform. Want to add the fixed phy properties in device tree file and hoping it would probe in driver to get the properties to call fix_phy_add with required phy properties. But not getting any idea would it be right place or not to call this. Another issue I have want to disable phy->irq for fixed phy.

Mara · 01-26-2014, 08:55 AM

If I understand correctly you want to check at the driver probe if the device tree has a special property for this device. It looks reasonable to me.