use U-boot from SD

[manoloruiz]

Hi,

I would like to know if I can load the u-boot form SD-card with write in the internal flash memory in my T2080RDB. I dont want to take the chance to "break" the original u-boot. If I can do it, what do I have to do?

Best regards

[sagee]

Let me rephrase.  The flash isn't blank but the memory location for the U-boot within the flash is corrupted based on a bad u-boot load. I did figure out how to use the SD card.  It is actually in the user guide pdf but I didn't find it on the online manual.  

Anyway. If anyone else is wondering.  I used this command with the SDcard in the host system in the folder with the u-boot in.  Note:/dev/sdb is the device name for my host and might be different for yours. 

dd if=u-boot-with-spl-pbl-sd.bin of=/dev/sdb bs=512 seek=8

[ufedor · Accepted solution]

Yes, it is possible.

Please refer to the SDK Documentation:

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[sagee]

Can you provide more information?  I looked this up in the SDK and it all seems to point to using Uboot to boot the filesystem from SD card.  How can you use Uboot on SD card with the flash blank?

[ufedor]

> How can you use Uboot on SD card with the flash blank?

What do you mean saying "with the flash blank"?