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question about pcie

Question asked by li zhq on Apr 20, 2016
Latest reply on Apr 22, 2016 by Yuri Muhin

I'm testing PCIe with SABRE lite board. there are some questions about PCIe.

a) In chapter memory map of IMX6DQRM, it assigns a range of address as follows.

     Start address     End address     Size          Description

     01FF_C000        01FF_FFFF      16KB        PCIe register

     0100_0000         01FF_BFFF      16368KB  PCIe

I want to know the usage of the 16368KB space. Is PCIe BAR must mapped to this memory space? And is the size of BAR space must less than 16368KB?


b) I have had my board work in RC mode. How can I set PCIe working in EP mode?