Unable to receive multicast packets in u-boot Jetson TX2

I had simplified the description of the problem here (How to enable receiving multicast packets in u-boot) and requested that this thread be deleted. This has not been resolved yet, however. I am looking at how it works in Linux (in particular porting the function of eqos_set_rx_mode in /nvidia/eqos/drv.c) and trying to make u-boot use the same configuration since the multicast MAC address I want is not filtered out in the kernel. I have had no luck finding the eqos documentation. Any support would be greatly appreciated.