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XIO3130: Doesn't want to enumerate on Raspberry PI5, CM4 or CM5

Part Number: XIO3130


Tool/software:

I'm unable to get our custom XIO3130 design to enumerate on a Raspberry PI.  I've tried both our custom design as well as 2 TI XIO3130 EVMs to no avail.  I've tried a stock RPI 5 with a break out board, a CM4 on the CM4 reference platform, and a CM5 on the CM5 reference platform.  Other PCIe peripheral devices enumerate as well as other bridge chips (ASM1184e) and devices behind those bridge chips.  Just can't seem to get the XIO3130 to enumerate.

Any ideas/thoughts?