Instructions can be found in the get.sh script file.
You should read the applications note "AN4578 - Profinet Class A Device Using KSZ9477" for details. It can be found on the web page https://www.microchip.com/ by searching for an4578.
Additional information that is needed, which AN4578 refer to, can be found at https://github.com/Microchip-Ethernet/EVB-KSZ9477/tree/master/doc.
The KSZ9477 board can be found here https://www.microchip.com/en-us/development-tool/evb-ksz9477-1.