Is it possible you're one of the few with an incompatible control board? Can you post the start up sequence from the kernel log? Curious if you have neither 512 or 1024 mb like mentioned in the FW title.
Also, check and see if your control board says XILINX on it. If not, the AB FW is incompatible with your board.
Heres the first part of the kernal log.
Machine: Altera SOCFPGA, model: Altera SOCFPGA Cyclone V
...
Memory: 1008MB = 1008MB total
Mine is:
Machine model: Xilinx Zynq
...
Memory: 884148K/1032192K available
We both have 1024 mb of ram...