[Buildroot] powerpc64 support

[Danny Gale]

Hi all,

We have used buildroot in the past to build filesystems for 32-bit 
powerpc's with great success. Our newest boards are using 64-bit 
powerpc's, however. Using menuconfig with buildroot 2013-11, I don't see 
a target architecture for powerpc64. Is there support for 64-bit powerpc's?

We're using an externally-generated toolchain, which is compiled for 
64-bit powerpc's, specifically the e6500 core 
(powerpc64-e6500-linux-gnu-). Will selecting powerpc but using this 
64-bit toolchain generate 64-bit filesystems? I don't see the e6500 
listed as a supported Target Architecture Variant either, but I believe 
it can run 32-bit code generated for the e500 cores.

Thanks for your help,
Danny