[SRU] drivers/usb/cdns3 module path missing

[Heinrich Schuchardt]

[ Impact ]

The RISC-V StarFive JH7110 SoC uses the drivers in drivers/usb/cdns3 for booting from USB. Some JH7110 have no SD-card (e.g. Milk-V Mars CM eMMC). We need USB support for installation.

[ Test Plan ]

Check that on riscv64 the following modules are included into the initrd when running update-initramfs:

* cdns3_starfive
* cdns_usb_common
* cdns3

Check that booting from USB on a JH7110 board is possible with the initrd.

[ Where problems could occur ]

If there were a syntax error, creation of initrds might fail.
The addition of further drivers increases the initrd size.
Module dependencies for the cdns3 driver might be missing in the initrd.

[ Other Info ]

n/a

[Heinrich Schuchardt (xypron)]

Dracut already has this line:

modules.d/70kernel-modules/module-setup.sh:96:
                "=drivers/usb/cdns3" \

[Heinrich Schuchardt (xypron)]

drivers/usb/cdns3 is only missing in noble. It is already available in questing and resolute.

[Dave Jones (waveform)]

Looks good, sponsoring for noble:

Uploading initramfs-tools_0.142ubuntu25.8.dsc
Uploading initramfs-tools_0.142ubuntu25.8.tar.xz
Uploading initramfs-tools_0.142ubuntu25.8_source.buildinfo
Uploading initramfs-tools_0.142ubuntu25.8_source.changes

Unfortunately I had to rebase on noble-updates (because the current version in noble-proposed branch was rejected during SRU validation), and double-bump the version number as another rejected SRU had already taken 25.7 too. This means the corresponding merge proposal will probably *not* be marked merged, but the proposed changes have nonetheless been sponsored.

[Andreas Hasenack (ahasenack)]

Note that these drivers will also be added for other arches:

                        case "$DPKG_ARCH" in
                        arm64|armel|armhf|riscv64)
...
+ modules="$modules =drivers/usb/cdns3"

Can we have something in the test plan to cover arm64 and armhf, looking for regressions?

[Andreas Hasenack (ahasenack)]

Hello Heinrich, or anyone else affected,

Accepted initramfs-tools into noble-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/initramfs-tools/0.142ubuntu25.8 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-noble to verification-done-noble. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-noble. 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.

[Benjamin Drung (bdrung)]

We should check the autopkgtest results to be green.

[Ubuntu SRU Bot (ubuntu-sru-bot)]

All autopkgtests for the newly accepted initramfs-tools (0.142ubuntu25.8) for noble have finished running.
The following regressions have been reported in tests triggered by the package:

initramfs-tools/0.142ubuntu25.8 (ppc64el)
kdump-tools/1:1.10.3ubuntu2 (amd64, arm64)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/noble/update_excuses.html#initramfs-tools

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

[Heinrich Schuchardt (xypron)]

With initramfs-tools (0.142ubuntu25.8) the following files are included in the initrd on riscv64:

./usr/lib/modules/6.17.0-14-generic/kernel/drivers/usb/cdns3
./usr/lib/modules/6.17.0-14-generic/kernel/drivers/usb/cdns3/cdns3-pci-wrap.ko.zst
./usr/lib/modules/6.17.0-14-generic/kernel/drivers/usb/cdns3/cdns3-starfive.ko.zst
./usr/lib/modules/6.17.0-14-generic/kernel/drivers/usb/cdns3/cdns-usb-common.ko.zst
./usr/lib/modules/6.17.0-14-generic/kernel/drivers/usb/cdns3/cdnsp-udc-pci.ko.zst
./usr/lib/modules/6.17.0-14-generic/kernel/drivers/usb/cdns3/cdns3.ko.zst

The Milk-V Mars CM Lite is able to boot from USB.

[Julian Andres Klode (juliank)]

The verification of the Stable Release Update for initramfs-tools 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.

[Launchpad Janitor (janitor)]

This bug was fixed in the package initramfs-tools - 0.142ubuntu25.8

---------------
initramfs-tools (0.142ubuntu25.8) noble; urgency=medium

  * Add missing USB drivers for StarFive JH7110 SoC (LP: #2140344)

 -- Heinrich Schuchardt <email address hidden> Wed, 04 Feb 2026 18:01:59 +0100

[Andreas Hasenack (ahasenack)]

I see https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2140344/comments/4 was ignored, hope it works out ok.