hi,
i'm trying to upload firmware to carombola2 via uboot and just serial comport. i dont want to use network.
i can upload file with 115200 speed. but it not possible to use it with faster speed.
may any one help me.
is it possible to set uboot baudrate to other speed when i use setenv baudrate 921600 it replies not possible.

what should i do.
thanks

What is your U-Boot version?

thanks for reply

ar7240> version
U-Boot 1.1.4-g33f82657-dirty (Sep 16 2013 - 16:09:28)

You can't change baudrate in this bootloader version. If you absolutely need to do this, then you can upgrade your bootloader to the new Caraboot. You can find the image at https://github.com/8devices/Caraboot/tr ... er/release. I will make instructions for the upgrade procedure, this week (but hopefully tommorow) and post a link here. However please note that upgrading bootloader is very risky - if anything goes wrong, then your device won't work anymore.

The steps are here http://8devices.com/wiki/carambola:2:ge ... er-upgrade

Oh dear, it's a copying mistake. It shouldn't be there and I have removed it from the guide. Thank you for noticing and informing.