I want to do NAND flash programming with u-boot-nand in a row board (Canyonlands PPC460Ex) , what is the solution? I changed TLB entries as SPL did, then loaded u-boot.bin (ram u-boot) into target's RAM using BDI-2000 (in order to use U-BOOT itself to do the programming) and issuing go command, it didn't work.