Manjaro ARM - Built-in ethernet was broken with kernel 5.14.1-1 (over now)
#1
I've been setting up my Rockpro64 with a Manjaro-ARM-minimal-rockpro64-21.08.img that I DLed a while ago. The built-in ethernet worked.

After upgrading the system via pacman, it does not work.

Old kernel: 5.13.12-1-MANJARO-ARM
New kernel: 5.14.1-1-MANJARO-ARM

Or possibly the new linux-firmware 20210818.c46b8c3-1.

If I connect a random USB ethernet dongle, that works fine.
But with the built-in port, nothing gets through. Pinging my PBP makes the lights on its dongle flash, but absolutely nothing shows up in Wireshark running on it. The ARP pings apparently aren't comprehensible.

Anybody want to test & confirm? Or is it just me?

---
Edit 09.17 (Fri)
The update to kernel 5.14.2-1-MANJARO-ARM a couple of days ago fixed it.
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#2
Not just you, ethernet was broken for all rk3399 boards in 5.14. Not sure why it hasn't been reverted yet.

See https://lore.kernel.org/linux-rockchip/Y...ashalap/T/
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#3
In the Manjaro kernel, a fix for that problem was added as of 2021-09-07.
The contents are the same as CounterPillow pointed out above.

"add patch to hopefully fix ethernet on rk3399"
https://gitlab.manjaro.org/manjaro-arm/p...e64c3646ad
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