Someone asked by email:
1. We're working on the 4T4R/8T8R demo with RF sync. We don't have a public demo yet. We'll be showing ADRV9009-ZU11EG-SOM dual SOM sync in June at IMS.
2. JESD204B should work with 4T4R/8T8R in the current format. 4T4R was already validated, we'll have examples for 8T8R soon. If it's the case, the framework will be updated.
3. Please contact your ADI representative for exact dates, but the plan is to ship ADRV9009-ZU11EG-SOM in fall this year.
HDL for the SOM cand be found at: https://github.com/analogdevicesinc/hdl/tree/talise_som/projects/adrv9009_zu11eg_som and Linux at https://github.com/analogdevicesinc/linux/tree/adrv9009-zu11eg . This includes the 4R4T design. For the schematic, you need to contact your ADI representative.
I see the below link for Linux has been invalid, could you help to see if it had been moved away?
The changes have been merged to master, so you can just use the master branch.