[U-Boot-Users] Environment is in OneNand ?

Hi all, I am using u-boot version 1.1.4 i am using custom board based on s3c2412. On my custom board, i don't have any nor or nand flash except onenand. While creating a configuration file for the board ,I was not able to find any way where i could say environment is in onenand(like for nand CFG_ENV_IS_IN_NAND) ? TIA, Regards, Pradeep.