quoted

+          ti,no-half-duplex:
+            type: boolean
+            description:
+              Disable half duplex operation on ICSSM MII port.

I already asked this in the next patch, but why have this property? Is
it because the hardware is broken? Or is this some sort of policy?
Policy should not be in DT, DT describes the hardware, not the policy
of how you use the hardware.

This series of patches enables support for full-duplex only. Support for 
half-duplex will be added in subsequent revisions. We will clean it up in
the next version.

Thanks & Best Regards,
Basharath