[U-Boot] fw_printenv - Bad CRC, using default environment

Hi All,

I have a u-boot version for Davinci 6446 and would like to access r/w the u-boot environment from linux userpace. I set the /etc/fw_env.config to /dev/mtd0 0 0x4000 0x200

When I execute fw_printenv, I got these error: Warning: Bad CRC, using default environment

But, when I commented out the memcpy on the condition below, I could be able to display my uboot environment. Although, there were few enviroment variables where the values are corrupted or missing few characters.

if (!crc1_ok) { fprintf (stderr, "Warning: Bad CRC, using default environment\n"); /*memcpy(environment.data, default_environment, sizeof default_environment);*/ }

Any one can give me a hints on how to fix it?

Thanks,

John