[U-Boot] [u-boot] why many init func moved to board_init_f and whereis the changelog

hi:

i found u-boot 2011.03 many init func moved to board_init_f,which run in flash(when boot_norflash).in version 2010.09 it's run after relocate in ram. i compiled 2011.03 with CS 2010.09 linker with -Ttext 0x23f00000 the code in board_init_f linked with ptr like 0x23fxxxxx (such as init_baudrate) how could the code work when it is in flash?

and i cant find changlog file where is it? thanks!