88e1111 not coming in loopback

josesmn

Distinguished
Jan 8, 2010
1
0
18,510
hai all,
i'm using ml505 board. when i tried to put the ethernet phy (marvel 88e1111) in loopback mode, its not happening. the data i sent through tx lines is not coming through rx lines. i followed the steps described in data sheet to program the phy to be in loopback mode. i could read and write the registers in phy through mdio interface. but its not getting loopbacked.

any help appriciated.
Jose