Hi, I am currently working on a MPC8548-based development system. Linux kernel version is 2.6.11 with patches delivered from Freescale (BSP MPC8548CDS 02/24/2006).
Kernel configuration contains a warning message for CONFIG_PEX: "This requires hardware modification to work correctly if your CPU version < 2.0 and will break the PCI bus. [...]" I was wondering whether enabling PCIe makes PCI bus functionality unusable at all (including kernel functionality for detecting devices behind a transparent PCI-to-PCI bridge). Our setup connects a transparent PLX8516 PCI-to-PCI bridge to the PCIe port of the MPC8548 daughter board. Behind that bridge is another PCIe capable device. MPC8548 is configured to run as PCIe host mode. When trying to lookup the PCIe devices using lspci I can only see the PPC itself and the bridge. However I cannot see the device(s) behind the bridge. Is there another method for detecting PCI(e) devices? Is "BSP MPC8548CDS 02/24/2006" the latest version corresponding to that hardware? Thanks in advance, Florian
