[Buildroot] u-boot build issue *** No rule to make target `y_config'.

[Amber]

I am new to buildroot (and linux too). I used build root to create
toolchain, kernel and rootfs already.

But, I am getting the following error while trying to build a uboot
image using buildroot for PowerPC.

/usr/bin/make -j1 -C
/home/xxx/Downloads/buildroot-2010.02/output/build/u-boot-2009.11	\
		y_config
make[1]: Entering directory
`/home/xxx/Downloads/buildroot-2010.02/output/build/u-boot-2009.11'
make[1]: *** No rule to make target `y_config'.  Stop.
make[1]: Leaving directory
`/home/xxx/Downloads/buildroot-2010.02/output/build/u-boot-2009.11'
make: *** [/home/xxx/Downloads/buildroot-2010.02/output/build/u-boot-2009.11/.configured]
Error 2

I don't see any y_config file in the u-boot-2009.11 folder. Can
someone please advice?

Thanks