[U-Boot] How to burn new U-Boot over network

Daniel Gorsulowski
2009-09-07T10:16:02Z

alex889 wrote:
> Hi,
> I'm working on the DM365evm,
> and i was wondering if there is a way to burn new U-Boot version over
> network, instead of Code Composer and a JTAG?
>
> Thanks,
> Alex

Hi Alex,

of course it's possible!
But it depends on the location of your U-Boot.

I.e. your U-Boot is located in dataflash or NAND flash:

tftp $(loadaddress) $(img)
protect off $(start) $(end)
erase $(start) $(end)
cp.b $(loadaddress) $(start) $(filesize)

$(loadaddress) - the temporary RAM address for downloading new U-Boot
$(img) - the path to your new U-Boot image (i.e. /tftpboot/update/u-boot.img)
$(start) - the flash address, where U-Boot is located
$(end) - $(start) + maximum size of U-Boot (erasesize)
$(filesize) - set automatically after tftp transfer

Regards
Daniel