I'm trying to use Fedora 28 Minimal on a Raspberry Pi 3 to set up an NTP
server using a GPS hat, specifically intended for this purpose:
(That link initially shows the non-Raspberry Pi version; click the second
photo for the Pi version.)
Booting Fedora from the MicroSD fails, apparently due to U-Boot thinking
that the UART has "pressed a key" to abort the boot. I get a U-Boot prompt,
followed by lots of garbage (presumably due to baud rate mismatch).
Is there any easy way to get U-Boot to not listen to the UART?
I've tried this with 32-bit and 64-bit Fedora 28 on a Pi 3B and a Pi 3B+,
with the same results. Without hte GPS hat it boots fine.