make[1]: Nothing to be done for `_depend'.
make[1]: Leaving directory `/home/tools/u-boot-2010.09/arch/
ARM/cpu/arm1176'
make[1]: Entering directory `/home/tools/u-boot-2010.09/board/samsung/ok6410'
make[1]: *** No rule to make target `_depend'. Stop.
make[1]: Leaving directory `/home/tools/u-boot-2010.09/board/samsung/ok6410'
make: *** [depend] Error 2