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This UBL can be used for flashing itself and a 2nd stage bootloader (usually
U-boot) in flash memory.
It can also be used to flash an arbitrary data image into flash, without
a header.
It can also be used to run DDR RAM memory testing.
To compile HVUBL for the sffsdr board, for example, run:
$> make BOARD=sffsdr
The Makefile honors the CROSS_COMPILE environment variable to specify the prefix
of your ARM gcc toolchain. If it is not set, it defaults to:
You can override it like this, for example:
$> make CROSS_COMPILE=arm-angstrom-linux-gnueabi- BOARD=sffsdr
The output file, in ARM ELF format, will be named <ubl.elf>