Ethernet support on Pi3 B+

[JasonGantner]

RancherOS Version: 1.3.0

Where are you running RancherOS? Raspberry Pi 3 Model B+

There has been a change of hardware on the Pi 3 B+ which prevents the use of the new ethernet port.

When adding the new .dtb, the boot fails.

I'm trying to find a workaround that doesn't involve a custom recompile of RancherOS.
If someone is interested by this issue, some help would be greatly appreciated 😄

[niusmallnan]

I don't have a 3B +, but it has been on my shopping list.
I will do some compatible work to make sure it works better.

[JasonGantner]

I was trying to force the use of the dtb with device_tree=... but it was the thing preventing the boot...
RancherOS boots with either of the dtb but the LAN78xx driver seems to be missing. I was unable to boot by just replacing RancherOS kernel with the one from master branch of raspberrypi/firmware and adding the 4.14.33+ modules in place.

[olljanat]

Pull request DieterReuter/rpi64-kernel#5 should add support for Pi3 B+ to kernel and after it have been accepted to rpi64-kernel project it need to be merged to here.

[niusmallnan]

@olljanat Cool, thanks! I will check it.

[DieterReuter]

The new 64bit kernel of the Raspberry Pi 3B+ works great! Thanks to @olljanat for the PR which helped fixing the eth0 interface.

[DieterReuter]

In the meantime I was able to build a new 64bit kernel 4.14.37 for the Raspberry Pi 3B and 3B+, see https://github.com/DieterReuter/rpi64-kernel/releases/tag/v20180429-164134.

[kingsd041]

Close it.
If you still have doubts, please reopen it and let me know.