Program UBoot

Hi DW,

> Now I want to put the configuration data (.sof) into the EPCS with a

> UBoot on top of it so that at boot up U-Boot will fire up from the EPCS

... snip ...

> can anyone suggest the correct steps to take (in script) to make the

> build happen

1. create the u-boot flash file with elf2flash and these parameters:

--epcs

--base=0x0 --end=0x7fffffff

--flash=<the epcs chip designator>

--input=u-boot

--outfile=u-boot.flash

--boot=<path to epcs bootloader srec>

The bootloader srec is in the {install}/altera/kits/nios2/components/altera_nios2/boot_loader_epcs.srec

2. download u-boot to the epcs device.

$ nios2-flash-programmer --epcs --input=u-boot.flash --sof=<path to pgm sof>

3. create the configuration flash file.

$ sof2flash --epcs --input=<path to your system sof> --ofset=0x0 --output=config.flash

4. download the configuration flash file to the epcs device.

$ nios2-flash-programmer --epcs --input=config.flash --sof=<path to pgm sof> --relocate

Don&#39;t forget the "--relocate -- it&#39;s important ;-)

... and you should be good-to-go at this point.

Hope this helps.

Regards,

--Scott