OMAP-L138: OMAP-L138 USB DFU

Shine,

As Yordan mentioned, DFU is a U-Boot feature, which is platform independent.

But since ROM doesn't support USB peripheral boot on OMAPL-138, DFU is not validated on OMAPL-138 in Processor SDK.

My question is why you are looking at DFU for OMAPL-138? How will you load U-Boot MLO at the first place? Why you don't want to use that method to load the rest of the firmware image?

Shine,
Thank you for posting my question about DFU function on omapl138 here :)

Bin Liu,
Thanks for your reply. Actually, my project need is sth like this :
1. connecting my ompl138 board to PC host with USB;
2. starting the usb communication between PC and my board running on u-boot phase;
3. receiving the files of u-boot, linux kernel and FS from PC with USB;
4. upgrading the u-boot, linux kernel and FS to nand flash on my board.

What I really need is an usb bulk device driver working on omapl138 of u-boot phase. ,but I can't find it in OMAPL-138 SDK.

I've been working on it for over 1month. Would you mind to answer my question on the following website:
e2echina.ti.com/.../149719

thanks again :)

Hi Yordan & Bin,

Thank you very much for answers.

Customer wanted to upgrade the images/firmware (bootloader, kernel and FS) from PC in realtime, so the DFU function is required in Uboot.

Best Regards
Shine