Gigabit Ethernet GMAC on stm32mp157a

hi,st engineer I am required to conduct Ethernet debugging on an stm32mp157a-st-discovery development board running the RT-THREAD operating system. Within the stm32mp157 Processor Reference Manual, I've encountered such option as follow:10/100M Gigabit Ethernet GMAC. It's mentioned that GMAC is an Intellectual Property (IP) from Synopsys. I want to use GMAC in RT-thread operating system,but i did not find the realted code.
here is the link: https://gitee.com/rtthread/rt-thread/tree/master/bsp/stm32/stm32mp157a-st-discovery
Do you have adapation for GMAC on RT-Thread?
If you are not in charge of this aspect, could you please forward this to the relevant colleague who is responsible? Here is what i find in RM0436 Rev 6 Document.

