Bug 1466356 - Serial console output is garbled in U-Boot on Raspberry Pi
Summary: Serial console output is garbled in U-Boot on Raspberry Pi
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: bcm283x-firmware
Version: 26
Hardware: Unspecified
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Peter Robinson
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: AcceptedFreezeException
Depends On:
Blocks: ARMTracker F26FinalFreezeException
TreeView+ depends on / blocked
 
Reported: 2017-06-29 13:27 UTC by Paul Whalen
Modified: 2017-07-06 22:52 UTC (History)
7 users (show)

Fixed In Version: bcm283x-firmware-20170613-2.73f44c6.fc26
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-07-06 22:52:29 UTC


Attachments (Terms of Use)

Description Paul Whalen 2017-06-29 13:27:50 UTC
Description of problem:
Serial console output is garbled in U-Boot on Raspberry Pi, the system boots ok but no output is shown while in uboot.

Version-Release number of selected component (if applicable):
uboot-images-armv7-2017.05-4.fc26

Actual results:


...
Kernel not configured for semaphores (System V IPC). Not using udev synchronisation code.
Kernel not configured for semaphores (System V IPC). Not using udev synchronisation code.
Rebooting.
[59393.793808] reboot: Restarting system
��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������0
[    0.000000] Linux version 4.11.7-300.fc26.armv7hl+lpae (mockbuild@buildvm-armv7-16.arm.fedoraproject.org) (gcc version 7.1.1 20170622 (Red Hat 7.1.1-3) (GCC) ) #1 SMP Mon Jun 26 14:46:41 UTC 2017
[    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=30c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B
....

Expected results:
Output in U-Boot

Comment 1 Peter Robinson 2017-07-01 15:28:24 UTC
Issue with firmware, reported upstream https://github.com/raspberrypi/firmware/issues/833

Comment 2 Fedora Blocker Bugs Application 2017-07-03 13:09:13 UTC
Proposed as a Freeze Exception for 26-final by Fedora user pbrobinson using the blocker tracking app because:

 This is a regression on the Serial Console of the Raspberry Pi. I'm filing this as a freeze exception as the HDMI display output works as expected, but the serial console is a common use case and is useful for a number of use cases so it's useful to have this fixed for a decent OOTB experience for a primary ARM device.

Comment 3 Fedora Update System 2017-07-03 13:10:12 UTC
bcm283x-firmware-20170613-2.73f44c6.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-8778f518d6

Comment 4 Matthew Miller 2017-07-03 14:49:28 UTC
+1 FE. Pi support is a big deal.

Comment 5 Fedora Update System 2017-07-03 18:25:40 UTC
bcm283x-firmware-20170613-2.73f44c6.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-8778f518d6

Comment 6 Adam Williamson 2017-07-03 18:40:20 UTC
Discussed at 2017-07-03 freeze exception review meeting: https://meetbot-raw.fedoraproject.org/fedora-blocker-review/2017-07-03/f26-blocker-review.2017-07-03-16.06.html . Accepted as a freeze exception issue, as obviously Pi is one of our major target platforms and it's important to try and ensure serial console output works. Also the change seems quite safe (reversion to a previously-tested version).

Comment 7 Fedora Update System 2017-07-06 22:52:29 UTC
bcm283x-firmware-20170613-2.73f44c6.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.


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