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TCI6638K2K: AIF2 resynchronization not working in XTCIEVMK2K Rev30 EVM board connected via Mistral BreakOut Card with optical external loop back

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Part Number: TCI6638K2K

Hi,

We are trying to port our Keystone I(TCI6618) based AIF2 CPRI codebase to Keystone II(TCI6638K2K) . Made the necessary changes and was able to get optical loop back via SFP+ to work with XTCIEVMK2X Rev 30 EVM connected to Mistral Breakout Card (board version RTM-BOCRT Rev:D). When we tried to remove the CPRI loop back cable and re insert the RM state machine is not re synchronizing and is stuck in un sync state. This was confirmed by reading the RM_LK_STS0[0] Register (offset = 0x50014) which was having a value 0x308. Is there anything else required to be done for CPRI re synchronization in Keystone II? The same code base is re synchronizing in Keystone I and CPRI state machine goes back to sync state (ST3) when the optical loop back cable is re inserted after removal (custom hardware for Keystone I)

regards

Ananth


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