PCIe TLP generation

[FreeScaleLogin]

Is it possible to generate the PCIe TLP from uboot? I am using P1011 as RC. On bootup PCI scan is done and detected device (EP) and link is active. when i read LTSSM it is showing 16. Fine, I wanted to access the EP memory read/write through uboot. For that we need to generate TLPs. How to do that? First is it possible through uboot?

Regards,

Sekhar

[scottwood]

You can't directly generate transaction layer packets (TLPs), but you don't need to.  U-Boot should have assigned an address to the BAR.  Just do ordinary read/write operations to that address.  Make sure that everything is translated properly from effective address to physical address to PCI bus address.