[meta-xilinx] System.bit (ZedBoard_Linux_Design), system.bin& fpga.bin cf_adv7511

[Edward Vidal]

Hello,
I created to BOOT.bin files one with  (ZedBoard_Linux_Design) and 2nd with
cf_adv7511 which is used in meta-topic.  Both of these boot okay and the
oled works,
On the 4 of the switch work and none of the 8 Leds work.
The system.bit has the CPU ethernet, uart, hdmi and audio devices is this
correct?
Where should the oled, switches, and led?
What is the relation between devicetree.dtb and system.bit?
I am trying to understand what fixed the sound besides the 3.12 kernel?

Any and all help is appreciated.
Thanks
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