Hi,
I am using the same toolchain as you. But I could not recreate the problem that you faced.
I will list down my steps..
1. Clone the mainline u-boot . ( git clone git://
git.denx.de/u-boot.git)
I have faced issues too with the ee-wiki sources, but the steps more or less work with mainline sources too, just avoid the patches.)
2. make clean
3. make -j4 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- omap3_beagle_defconfig
4. make -j4 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
This did it for me, no issues faced.. have the MLO and u-boot.img generated.