What I am looking into is to use LS1021A with Altera Arria V on a main board. The tasks for LS1021A is to communicate with FPGA through PCIe x4, even configure FPGA through JTAG connections on PCIe. Also use the GigE to connect to a PC. USB, HDMI and SD card ports to LS1021A.
I looked at the Tower and IOT boards of this device. It seems more complicated than what I thought. First of all the CPLD controls some the power up and reset sequences, LCD display through HDMI and more. I don't know if it's possible to use the micro without the CPLD and not making things more complicated.
Any inputs are greatly appreciated!