Problem with CRC

Hi all,
I have a problem. I have Mini2440 woth 128MB NAND flash. I flash U-boot
into a device and I want load my compiled kernel, but when I want to boot,
u-boot give me this text:
   Image Name:   

   Created:      2010-06-02  18:20:44 UTC

   Image Type:   ARM Linux Kernel Image (uncompressed)

   Data Size:    2039808 Bytes =  1.9 MB

   Load Address: 30008000

   Entry Point:  30008000

   Verifying Checksum ...    Bad Data CRC
I tested a many versions of u-boot and uImage, but It's the same. Can
anybody help me?

Thank's Radim

please go and see the article below;
http://e2e.ti.com/support/embedded/f/354/t/43146.aspx?PageIndex=1

It worked for me.

Cheers,

Thank's for reply. I using tftp server running on linux and my uImage is OK
- I tested upload uImage via bootloader in NOR memmory and boot and
it'correct. But i want use u-boot (I want boot linux from sdcard finnal.)