[U-Boot-Users] effort required to port u-boot

Hi,

Does anyone have an idea of the effort required to port the full uboot to a new arm based target?? Please excuse me for the nature of the question but if anyone has done it already he can suggest abt how much time he took to port the whole u-boot on a new target (just a very rough estimate), assuming that the developer has a very good knowledge of the target but at a comfort level [medium] on linux..

Any comments will be really helpful

Regards,

kshitij