This is the piggyback application which you can use along with the RealView ICE
to program a U-Boot image onto the NOR Flash of a brand new Maui/Willow/Moku
board, i.e. a board that does not have U-Boot in its NOR Flash.

The cavm_bootloader.bin image rides piggyback (so to speak) on the piggyback
app, which then burns the cavm_bootloader.bin image to the NOR Flash.

To run piggyback, use the RealView ICE and RealView Debugger to:

1.  run a command script like ddrc16_config_200mclk_autocali.inc to configure
    Fuji's DRAM controller for the ARM cores

2.  load the piggyback.elf image file, and run it

That's all there is to it.  You now have U-Boot on the NOR Flash of your
Maui/Willow/Moku board.
