Bjorn Helgaas <helgaas@xxxxxxxxxx> writes: > On Wed, Dec 06, 2017 at 11:57:03PM +1100, Michael Ellerman wrote: >> Christian Zigotzky <chzigotzky@xxxxxxxxxxx> writes: >> ... >> > >> > Hi Olof, >> > >> > Many thanks for your patch! :-) The RC2 of kernel 4.15 boots without any >> > problems on my P.A. Semi Nemo board (A-EON AmigaOne X1000). I don’t need >> > the additional boot argument 'pci=pcie_scan_all' anymore. >> > >> > Is it possible to merge it via the powerpc tree? >> >> Yes. >> >> It would be good to confirm that the change is harmless on other pasemi >> boards. I'll try and get mine booted tomorrow, unless someone beats me >> to it. > > Theoretically, it should not do any harm since it only turns off an > enumeration optimization. Boot will be slightly slower but should > still work fine. Yep OK. > Darren's idea of doing it at the same time you tweak the SB600 "relax > pci-e" bit is ideal because then the two pieces are obviously > connected and it wouldn't affect any other systems at all. Yes that would be ideal. That patch is currently out-of-tree I gather, but I guess everyone who's using these machines must have that patch anyway. Darren what does that code look like? Can we get it upstream and close the loop on this? cheers