Hello,
I am currently designing a carrier board for the Verdin iMX8M Plus. We would like to have two Ethernet ports exposed on our product, and they’re likely going to be 100BASE-TX ports. We’d like them to be hardware switched to avoid overhead when passing traffic through (although the overhead seems to be small).
I was wondering if we’d run into any issues only using the RGMII interfaces with ETH_2, and leaving ETH_1 unconnected. Issues with the preinstalled TEZI or the precompiled U-Boot for instance, that would make it less convenient for manufacture/flashing purposes.
One side question - the design guide recommends using the same Gigabit PHY for the best software support - would this simply mean we can reuse the same DTS - or is there more to it?