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KernelTree
The skiroot/Petitboot kernel is currently based on the 4.17 series.
If you require a patch added to the firmware, follow these steps:
- Submit your patch upstream. It doesn't need to be upstream, but it should be on it's way
- Send a pull request or a
git format-patchformatted patch series to openpower-firmware@lists.ozlabs.org, and cc joel@jms.id.au. Be sure to use--suppress-cc=sobwhen generating the patches so we don't spam the community. The current tree is based on 4.15-stable.
Whenever a stable release is tagged in https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/, we will rebase our patches on top of that and create a new release.
If you are submitting patches upstream that you want to be included, then ensure you cc stable as per the rules.
Versions are the upstream version number, followed by -openpowerN, where N is the revision that counts up from 1 for the given upstream version number. These versions will be present as tags in the git repository hosted at https://github.com/open-power/linux.
The kernel tree hosted at https://github.com/open-power/linux contains the current release plus a set of patches that we carry. Ideally there would be no patches carried, as everything should be upstream.
We take the commits in this tree between the upstream tag and the openpower tag and generate a series of patches that are imported into the op-build Buildroot overlay, and placed in op-build/openpower/linux. op-build then fetches the upstream tarball and applies these patches. This way we don't have to clone an entire tree when doing an op-build build.
- xhci: Reset controller on xhci shutdown