GEM0 Ethernet vs PS-PCIe Reset facing an I/O conflict
Resource Conflict: This is due to the PS-PCIe Endpoint Reset signal being mapped to the same MIO pins already utilized by the on-SOM GEM0 Ethernet PHY interface. In G35M SOM, either the on-SOM GEM0 Ethernet or the PS-PCIe Endpoint Reset can be used, but both cannot be used simultaneously.
Implementation for PS-PCIe Endpoint Mode: To support PS-PCIe in Endpoint mode, the reset signal must be configured to MIO30.
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Please find the detailed G35D product information in the below link,