Fix for Armbian not booting on PBP from eMMC

[ajtravis]

Hi,

I've had a lot of issues with booting both the Pinebook Pro and Rockpro64 from eMMC, but *finally* discovered that the problems began when I upgraded to the 5.15 kernel. Downgrading, and pinning, to the 5.10 kernel fixes the problems booting from eMMC and *also* fixes ALL the problems I had with the Pine64 docking station not working! Incidentally, the HDMI on the dock does NOT work if using USB-C PD to power the Pinebook Pro: It only works if I use the 5V barrel connector to power the Pinebook Pro and power the dock from the Pinebook. The VGA display does work when using USB-C PD, though. I changed kernels using "armbian-config" and 'froze' the Armbian 'firmware' settings, but this failed to pin the packages and I broke it again as soon as I did an upgrade so I pinned the packages manually:

cat /etc/apt/preferences
Package: linux-dtb-current-rockchip64
Pin: version 21.08.2
Pin-Priority: 1001

Package: linux-headers-current-rockchip64
Pin: version 21.08.2
Pin-Priority: 1001

Package: linux-image-current-rockchip64
Pin: version 21.08.2
Pin-Priority: 1001


AFAIK, "armbian-config" should do this automatically, but doesn't...

This is the kernel I'm running now:

inux pinebook-pro 5.10.63-rockchip64 #21.08.2 SMP PREEMPT Wed Sep 8 10:57:23 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux

Might be worth comparing the dtb's?

Bye,

  Tony.