Dear xiexiaochao,

On 26.03.13 03:30, xiexiaochao wrote:

Dear Andreas Bießmann, I resolve this issue, it is my fault, u-boot is very strong and stable . Anyway, I very appreciate for your reply.

    *My problem is " u-boot image is bigger than 192 kBytes  " *

this is a common problem for separate first stage bootloader (at91bootstrap) and second stage loader (u-boot). You always need to manage the dependencies between both by yourself. I'm looking forward to enable u-boot to act as a first stage bootloader for at91 too (keyword SPL in u-boot). Hopefully we get a full boot solution from one source blob then which is able to manage those problems.

Best regards

Andreas Bießmann