Apologies to post this late –
But yeah, I happened to talk to TI people first who suggested few things to try to see if design crashes with respective configuration. Here is the link to the thread – LMK04828: taking driving_clock from another input pin and I can’t figure out which one - Clock & timing forum - Clock & timing - TI E2E support forums
and it worked.
Also, after talking to casper guys about using external clock on rfsoc4x2, they provided me the required clock configuration file (.hex) file which is attached below and it works for me.
rfsoc4x2_lmk_CLKin0_extref_10M_PL_122M88_LMXREF_245M76.txt (2.0 KB)