The 'latest' kernel with working sgx is the "4.1.x-bone" /
"4.1.x-rt-bone", using sdk: 5.01.01.02
follow:
http://elinux.org/BeagleBoardDebian#SGX_BeagleBone.2FBeagleBone_Black
as everything EXCEPT the "sdk libraries" is in the apt repo..
I'm still working on sgx, for "4.1.x-ti" / "4.1.x-rt-ti" which uses the new sdk:
http://git.ti.com/gitweb/?p=graphics/omap5-sgx-ddk-um-linux.git;a=summary
Regards,