A few weeks ago (okay, close to six), I put up a firmware build for the Raptor Blackbird with close-to-upstream firmware (see here).
Well, I’ve done another build! It’s current op-build (as of this morning), but my branch with patches for the Raptor Blackbird. The skiboot patch is there, as is the SBE speedup patch. Current kernel (works fine with my hardware), current petitboot, and the machine-xml which is straight from Raptor but in my repo.
Versions of everything are:
$ lsprop /sys/firmware/devicetree/base/ibm,firmware-versions/ skiboot "v6.5-209-g179d53df-p4360f95" bmc-firmware-version "0.01" occ "3ab2921" hostboot "779761d-pe7e80e1" buildroot "2019.05.3-14-g17f117295f" capp-ucode "p9-dd2-v4" machine-xml "site_local-stewart-a0efd66" hostboot-binaries "hw011120a.opmst" sbe "166b70c-p06fc80c" hcode "hw011520a.opmst" petitboot "v1.11" phandle 000005d0 (1488) version "blackbird-v2.4-415-gb63b36ef" linux "5.4.13-openpower1-pa361bec" name "ibm,firmware-versions"
You can download all the bits (including debug tarball) from https://www.flamingspork.com/blackbird/stewart-blackbird-2-images/ and follow the instructions for trying it out or flashing blackbird.pnor.
Again, would love to hear how it goes for you!