We are designing our carrier board for Jetson Nano & NX, and we expect to design one carrier board that Nano & NX module can use the same one.
We have the three questions about PCIe of Nano &NX module.
Please refer as below image. Because Nano & NX module wifi pin number is different, could we redistribute PCIe pin function to make wifi pin number of Nano & NX module become to the same?
If question 1’s answer is yes, should we modify DTB/DTS file to redistribute PCIe pin function for PCIe lane configuration?
Because we want to achieve more PCIe device on this one carrier board like SSD & LTE module, the original PCIe port isn’t enough for us. So we will add PCIe switch and is it correct we should modify PCIe lane configuration via DTB/DTS file only? Is there anything else we should pay attention to?
Finally, thanks for your feedback.