On 2021-01-18, Vagrant Cascadian wrote:
> both rockpro64-rk3399 and pinebook-pro-rk3399 fail to boot with
> 2021.01 (and rockpro64-rk3399 may have issues with 2020.10 as well).

Both platforms initialize USB from "preboot", but somehow this triggers
a boot failure.

This can be worked around by patching the
configs/rockpro64-rk3399_defconfig and
configs/pinebook-pro-rk3399_defconfig to use:

  CONFIG_USE_PREBOOT=n

Notably, when CONFIG_USE_PREBOOT=n is set, and manually running "usb
start" before booting, it boots fine, so there must be something about
the timing of running "usb start" from the preboot phase...

I believe both platforms also have this issue in version 2020.10, though
pinebook-pro "works fine" because it fails to detect any USB devices...


live well,
  vagrant

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