SRU u-boot to focal to enable HiFive Unmatched booting

[William Wilson]

In order to boot Ubuntu 20.04 on the Unmatched, the version of u-boot currently in hirsute will need to be SRU'd to focal.

Raspberry pi core and classic images will need to be tested with this new version of u-boot as well to ensure nothing was broken by the SRU.

[Impact]

 * Without the hirsute version of u-boot, the HiFive Unmatched
   will not boot focal

[Test Case]

For RISC-V "unmatched" boards:
 * Attempt to build a HiFive Unmatched image with
   u-boot 2020.10+dfsg-1ubuntu0~20.04.2
 * Note that it fails to build
 * Build image with u-boot from proposed
 * Attempt to boot the Unmatched with the new version of u-boot
 * Verify that u-boot is able to load the kernel

For Raspberry Pi boards (2, 3, 3+, 4 (inc. 8GB variant), 400, CM4):
 * Flash focal image to an SD card and boot it on the relevant Pi
 * Ensure card is fully up to date (sudo apt update && sudo apt upgrade)
 * Enable proposed (https://wiki.ubuntu.com/Testing/EnableProposed)
 * Update u-boot (sudo apt install u-boot-rpi)
 * Check reboot still boots successfully (sudo reboot)

[Regression Potential]

There are multiple changes being SRU'd, but since we know they all work in hirsute on these models the risk is fairly low. Attempts to boot all the supported Raspberry pi models should still be made to ensure no regression.

[Brian Murray (brian-murray)]

Hello William, or anyone else affected,

Accepted u-boot into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/u-boot/2021.01+dfsg-3ubuntu0~20.04.1 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, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. 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.

[William Wilson (jawn-smith)]

The verification passed for focal. The daily images are building with u-boot-menu-4.0.2ubuntu5~20.04.1. I have successfully booted these daily images in qemu and Unmatched hardware.

Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.8.0-29-generic riscv64)

 * Documentation: https://help.ubuntu.com
 * Management: https://landscape.canonical.com
 * Support: https://ubuntu.com/advantage

  System information as of Tue Jul 20 17:31:58 UTC 2021

  System load: 0.89
  Usage of /: 82.1% of 3.22GB
  Memory usage: 9%
  Swap usage: 0%
  Processes: 114
  Users logged in: 0
  IPv4 address for eth0: 10.0.2.15
  IPv6 address for eth0: fec0::5054:ff:fe12:3456

 * Super-optimized for small spaces - read how we shrank the memory
   footprint of MicroK8s to make it the smallest full K8s around.

   https://ubuntu.com/blog/microk8s-memory-optimisation

0 updates can be applied immediately.

Last login: Fri Jul 16 13:46:13 UTC 2021 on ttyS0
ubuntu@ubuntu:~$ apt-cache policy u-boot-menu
u-boot-menu:
  Installed: 4.0.2ubuntu5~20.04.1
  Candidate: 4.0.2ubuntu5~20.04.1
  Version table:
 *** 4.0.2ubuntu5~20.04.1 500
        500 http://ports.ubuntu.com/ubuntu-ports focal-proposed/main riscv64 Packages
        100 /var/lib/dpkg/status
     4.0.1ubuntu0.1 500
        500 http://ports.ubuntu.com/ubuntu-ports focal-updates/universe riscv64 Packages
     4.0.1 500
        500 http://ports.ubuntu.com/ubuntu-ports focal/universe riscv64 Packages

[William Wilson (jawn-smith)]

I have also tested the following Raspberry Pi Models/architectures
                   armhf | arm64

Pi 4 1GB Rev 1.1 x | x
Pi 4 2GB Rev 1.2 x | x
Pi 4 2GB Rev 1.2 x | x
Pi 4 4GB Rev 1.1 x | x
Pi 4 8GB Rev 1.4 x | x
Pi 400 Rev 1.0 x | x
CM4 4GB Rev 1.0 x | x
Pi 3 x | x
Pi 3+ x | x
Pi 3A+ x | x
Pi 2 Rev 1.1 x | x

(x means success)

[Launchpad Janitor (janitor)]

This bug was fixed in the package u-boot - 2021.01+dfsg-3ubuntu0~20.04.1

---------------
u-boot (2021.01+dfsg-3ubuntu0~20.04.1) focal; urgency=medium

  * SRU of 2021.01+dfsg-3 from hirsute to enable booting on HiFive Unmatched
    LP: #1934791, LP: #1925267, LP: #1923162

  [ Dimitri John Ledkov ]
  * Import meta-sifive u-boot patches.
  * Enable sifive_hifive_unmatched_fu740 target.
  * Build-depend on opensbi with fu740 errata fix.
  * Set default FDT files for the sifive boards.
  * Set USE_PREBOOT on unmatched board too (just like unleashed & qemu),
    otherwise u-boot's fdtfile from itb is not used (i.e. when
    extlinux.conf does not specify fdtdir). LP: #1923162
  * Unapply unmatched patches, whilst building unleashed platform. Fixes
    failure to boot from sd-card on Unleashed. LP: #1924761
  * sifive-unleashed-default-fdt-files.patch: split into unleashed &
    unmatched separate patches, for ease of upstreaming to meta-sifive and
    u-boot upstreams. Also this ensures that unleashed target is built
    with fdtfile= set, as unleashed target unapplies lots of patches.
  * Apply upstreamed patch "cmd: pxe_utils: sysboot: fix crash if either
    board or soc are not set." This fixes a crash booting any
    extlinux.conf with fdtdir specified, and dtbfile not set and
    "soc"/"board" not set in the environment LP: #1923162

  [ William 'jawn-smith' Wilson ]
  * Re-added d/p/lzo-to-lzno.patch as lzop is in universe prior to Groovy
  * Updated d/targets for compatibility with focal arm-trusted-firmware
  * Updated d/control for compatibility with focal debhelper
  * Reinstate rpi-config-migration script for focal
  * Prevent stripping of qemu binaries under focal where strip doesn't
    recognize the format

  [ Dave Jones ]
  * In d/control update opensbi dependency for focal

 -- William 'jawn-smith' Wilson <email address hidden> Fri, 25 Jun 2021 18:21:47 +0000

[Brian Murray (brian-murray)]

The verification of the Stable Release Update for u-boot has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.