Install Uboot
From Klaus' wiki
Follow this guide to install uboot for your embedded device.
tar xjvf u-boot-1.1.6.tar.bz2 cd u-boot-1.1.6 gunzip -c ../u-boot-1.1.6-ea_v1_9_0.diff.gz |patch -p1 gunzip –c ../u-boot-1.1.6-ea_v1_9_1.diff.gz| patch –p1 gunzip -c ../u-boot-1.1.6-ea_v1_9_1_incr1.diff.gz | patch -p1 gunzip -c ../u-boot-1.1.6-ea_v1_9_1_incr2.diff.gz | patch -p1 make LPC2478OEM_Board_32bit_config # or make LPC2478OEM_Board_16bit_config if that's the one you've got. make /home/emb/uClinux-dist/usr/local/bin/arm-linux-objcopy -I binary -O ihex u-boot.bin u-boot.hex
If you were in the middle of compiling your kernel return to the kernel configuration. Build uClinux for EA2478 Board