Really disabling serial port?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


I have a Pi 4B 2G with a Uputronics u-blox GPS HAT, which puts the GPS
module serial data on the first serial port lines.  The problem is that
U-Boot stops boot on serial input, and the GPS module is always sending
data when it has a fix.

I put Fedora 36 Server on an SD card, and set the U-Boot stdin, stdout,
and stderr environment variables to exclude serial (which wrote
uboot.env), and that worked.  Then I unplugged the keyboard... and it
appeared to automatically re-add the serial and stop boot.

I have an extra Logitech unifying receiver I could leave plugged in
(which seems to work), but that needlessly uses up a USB port.  Is there
a way to tell U-Boot "no really, ignore input from the serial port"?

Chris Adams <linux@xxxxxxxxxxx>
arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct:
List Guidelines:
List Archives:
Do not reply to spam, report it:

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux ARM (Vger)]     [Linux ARM]     [ARM Kernel]     [Fedora User Discussion]     [Older Fedora Users Discussion]     [Fedora Advisory Board]     [Fedora Security]     [Fedora Maintainers]     [Fedora Devel Java]     [Fedora Legacy]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Mentors]     [Fedora Package Announce]     [Fedora Package Review]     [Fedora Music]     [Fedora Packaging]     [Centos]     [Fedora SELinux]     [Coolkey]     [Yum Users]     [Tux]     [Yosemite News]     [Linux Apps]     [KDE Users]     [Fedora Tools]     [Fedora Art]     [Fedora Docs]     [Asterisk PBX]

Powered by Linux