Also see the Gateworks generic PCI wiki page: PCI

Catalina i.MX95 PCIe Support

The i.MX95 SoC has two PCIe Gen 3 single lane host controllers with a TLP size of 256B.

For performance information see ​here

PCIe Reset

Reset signals are routed to FSA adapters supporting PCIe. The PERST# signal is a GPIO that is specified in the device-tree and automatically controlled by the driver.