question about pcie

cancel
Showing results for 
Search instead for 
Did you mean: 

question about pcie

395 Views
ainolike
Contributor III

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?

Labels (6)
0 Kudos
2 Replies

137 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

as for PCIe EP mode - perhaps the following helps.

Configuring the kernel for RC/EP communication

Regards,

Yuri.

0 Kudos

137 Views
art
NXP TechSupport
NXP TechSupport

a) Please refer to the Chapter 40 of the attached document.

b) There is no EP functionality implementation in the current Linux BSP driver.


Have a great day,
Artur

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 Kudos