Hi Lucas, On Wed, May 10, 2017 at 2:57 PM, Lucas Stach <l.stach@xxxxxxxxxxxxxx> wrote: > The change in Linux 4.12 to make PCI configuartion requests non-posted > means that we are now getting a synchronous abort when the CFG space > read to probe for downstream devices times out. > > Synchronous aborts need to be handled differently from the async aborts > we were getting before, in particular the PC needs to be advanced when > resolving the abort. This is mostly a copy of what other PCI drivers do > on ARM to handle those aborts. > > Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> > --- > This is a fix that needs to go in for 4.12, but I would hope to get > some thorough testing before. This fixes the kernel crash on my mx6q board with a PCI switch, thanks! PCI Wifi card is also correctly detected.
