> -----Original Message----- > From: Benjamin Herrenschmidt [mailto:b...@kernel.crashing.org] > Sent: Tuesday, May 11, 2010 8:03 PM > To: Stefan Roese > Cc: linuxppc-dev; Pravin Bathija > Subject: Re: 440SPe/Katmai PCIe problems > > On Wed, 2010-05-12 at 12:40 +1000, Benjamin Herrenschmidt wrote: > > Hi Stefan ! > > > > (Or somebody from AMCC) > > > > I noticed we still have this old problem on PCIe where some cards > don't > > seem to work. The link trains but they don't respond on config space. > > This is the case for example of that Sunix quad USB card. It seems to > be > > related to the kind of TI PCIe <-> PCI bridge on these though. > > > > Have anybody tracked down the root cause of the problem ? Some say > that > > it could be that the bridge doesn't cope with the double reset (uboot > > then kernel). Would it be possible to tell uboot to avoid touching > the > > PCIe interface completely so the kernel is the first one to get in ? > > Actually... the card works in the Canyonlands using the latest u-boot > from ftp.denx.de (u-boot-nand.bin-2009.11.1), though interestingly > enough, this u-boot fails to detect an XGI Z11 video card that I have, > whichever slot I put it in. > > in fact, the kernel itself detects the card and times out trying to get > a link. It works with whatever u-boot I used to have in there (and no > longer do ... oops :-) > > Cheers, > Ben. >
Ben, Thanks for bringing this to our attention. We'll research this issue. Regards, Pravin _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev