FPGA design description of RocketBoard A10 Soc.

Dear Intel Expert/Support,

I just download Altera Arria 10 SoC Board package, from the website(Arria 10 SoC GSRD | Documentation | RocketBoards.org) there is a block diagram like this, I couldn't see a PCIe EP. and the document of the FPGA design.

as an example board with external memory, and PCIe interface, is there a FPGA reference design with at least some of the popular peripherals, like PCIe.

Are there any mature FPGA project based on Arria 10 SoC Board, at least has an PCIe, and external Memory interface like DDR4. please give a link if you know it. appreciate your help.

Thanks,

David