[Bug 1846329] Re: [SRU] 2019.07 to support Pi4 boot

[Łukasz Zemczak]

Hello Dave, or anyone else affected,

Accepted u-boot into bionic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/u-boot/2019.07+dfsg-
1ubuntu4~18.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: u-boot (Ubuntu Bionic)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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https://bugs.launchpad.net/bugs/1846329

Title:
  [SRU] 2019.07 to support Pi4 boot

Status in u-boot package in Ubuntu:
  Fix Released
Status in u-boot source package in Bionic:
  Fix Committed

Bug description:
  Impact
  ======

  The current stable release (bionic) does not support booting on the
  Raspberry Pi 4. Several packages need back-porting from devel to
  support this, along with a new kernel. In addition, there are now
  changes in the back-port that require updates to focal.

  Bionic back-port branch:

  https://code.launchpad.net/~waveform/ubuntu/+source/u-boot/+git/u-boot/+ref
  /bionic-clean-up

  Focal branch:

  https://code.launchpad.net/~waveform/ubuntu/+source/u-boot/+git/u-boot/+ref
  /focal-clean-up

  Builds of packages for both releases available from the following PPA
  (along with all packages required for testing the bionic back-port):

  https://launchpad.net/~waveform/+archive/ubuntu/pi4

  Test Case
  =========

  * Attempt to boot the latest bionic image (18.04.3) on a pi4; note failure
  * Move the SD card to a pi3 and boot successfully
  * Ensure all packages are up to date (apt update/upgrade)
  * sudo add-apt-repository ppa:waveform/pi4
  * sudo apt upgrade
  * sudo reboot
  * Ensure boot proceeds successfully on the pi3
  * Verify facilities (USB peripherals, USB mass storage, wifi, bluetooth, audio, etc.) work
  * sudo apt install linux-image-raspi2-hwe-18.04-edge
  * sudo reboot
  * Ensure boot proceeds successfully on the pi3
  * Verify facilities (USB peripherals, USB mass storage, wifi, bluetooth, audio, etc.) work
  * Move the SD card back to the pi4
  * Ensure boot proceeds successfully on the pi4
  * Verify facilities (USB peripherals, USB mass storage, wifi, bluetooth, audio, etc.) work
  * Repeat for both archs (armhf and arm64)

  Regression Potential
  ====================

  Plenty; pi4 support on bionic requires back-ports of flash-kernel,
  u-boot, linux-firmware-raspi2, and the kernel. Furthermore, the
  firmware package needs to support two kernels (the current 4.x series
  and the proposed 5.x series). Verification of boot, and other
  facilities (USB peripherals, mass storage, free memory, wifi, etc.
  etc.) should be performed on both archs and all supported models of pi
  (2, 3, 3A+, 3B+, 4B all memory variants).

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