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Observer czeck
Registered: ‎08-28-2017

u250 -- MIG calibration timeout after bitstream download

I've migrated a well tested SDx system from the u200 to a u250.  However when I attempt to download the bit stream to the device, I get the following error from xbutil program


INFO: Found total 1 card(s), 1 are usable
ERROR: xbutil program failed.


Digging into the dmesg  logs, I see the following error:

icap.m icap.m.256: calibrate_mig: MIG calibration timeout after bitstream download

I can successfully run xbutil validate on this system.   I have also built other designs and was able to load them on the same system. 

How can a kernel change impact MIG calibration which is well outside of my design?

How do we move around this issue?

System details:

Ubuntu 18.04.3 LTS
Version: 2.2.2250
Git Hash: dd210161e204e882027d22132725d8ffdf285149 
Shell FPGA IDCode
xilinx_u250_xdma_201830_2 xcu250-figd2104-2L-e



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