Check I/F Mapping when connecting 2-Lane EP Device to PCIe Controller #4 of AGX ORIN

[andy.chung]

I would like to connect an EP Device that supports 2-Lane to Controller #4, which supports 4-Lane, among AGX ORIN’s UPHY0.

Referring to Reference Schematic, the PCIe 2-Lane and Clock to be used were selected as follows.

Please check if there are any problems with the connection between AGX ORIN and EP Device as shown below.

[Trumany]

Please try to use UPHY_RX22/TX22 and UPHY_RX23/TX23 instead.

[andy.chung]

Thank you for confirmation…

I understood that you were guiding UHPY Mapping as shown below.
Is that correct?

[Trumany]

Yes, use lane 4&5 instead of 6&7.