[Enable PPS-GPIO on Rock64 with legacy kernel]

Hi all.

 

I wrote a small guide on enabling pps-gpio by modifying the device tree. With a PPS signal it's possible to setup your board as a Stratum 1 time server for your local network or the NTP pool. I used this method on a Rock64 but it should be applicable on most board.

 

PPS-GPIO on Rock64 with Armbian legacy (4.4.X) kernel

 

Cheers.

[PPS-GPIO on Rock64 with legacy kernel]

EDIT: Just realized I posted this in the bug tracker forum. My apologies!

 

See:

 

[Rock64 USB 3 broken]

That's fair. Perhaps the docs (https://docs.armbian.com/User-Guide_Getting-Started/) should be updated to indicate "mainline" is considered development and may be missing features.

[Rock64 USB 3 broken]

Can also confirm issues on my new Rock64.

 

USB3 works on fresh install of Buster server 4.4

Linux rock64 4.4.198-rockchip64 #27 SMP Fri Dec 27 21:32:05 CET 2019 aarch64 GNU/Linux

 

No USB3 device recognized on Buster server 5.4

Linux RockHole 5.4.6-rockchip64 #19.11.5 SMP PREEMPT Fri Dec 27 21:46:18 CET 2019 aarch64 GNU/Linux

 

USB2 works OK on both.

 

EDIT:

Also no USB3 on
 

Linux RockHole 5.3.11-rockchip64 #19.11.3 SMP PREEMPT Mon Nov 18 21:03:09 CET 2019 aarch64 GNU/Linux