On Sat, Dec 7, 2013 at 6:48 PM, Ruchika <ruchika.k@xxxxxxxxxxxx> wrote: > > Hi, > I am working with an Soc with 3 PCIE controllers. > I need to have 2 configured. > > In uboot I have no problems scanning and discovering what is connected > to both bridges PCIE1 and PCIE2 > > For both uboot sets up the Primary, secondary and Subordinate bus > numbers to 0,1,1 respectively. > > When linux boots up and probes the controllers, PCIE1 is probed and the > bridge scanned properly but PCIE2 is probed at the bridge but not > attempted a scan. > I see this message > "pci 0001:02:00.0: bridge configuration invalid ([bus 01-01]), reconfiguring > " > > I updated uboot to set the secondary and subordinate numbers to 2 (left > the primary number to 0) and a subsequent kernel boot scanned the bus > for PCIE2 successfully. > I found these numbers to be very critical since the device tree blob > (bus-range) for pci is also based off these. > > I'd like to get a good fix and get better understanding of the problem. > If there are any pointers someone could provide it would be awesome. So keep bus range correct from uboot before hand it to kernel. Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
