Cloning this repository:

git clone git://gitorious.org/~encrypsis/android-n900/encrypsiss-platform_hardware_ti_sgx-irrelevant.git encrypsiss-platform_hardware_ti_sgx-irrelevant
cd encrypsiss-platform_hardware_ti_sgx-irrelevant

Add this repository as a remote to an existing local repository:

git remote add encrypsiss-platform_hardware_ti_sgx-irrelevant git://gitorious.org/~encrypsis/android-n900/encrypsiss-platform_hardware_ti_sgx-irrelevant.git
git fetch encrypsiss-platform_hardware_ti_sgx-irrelevant
git checkout -b my-local-tracking-branch encrypsiss-platform_hardware_ti_sgx-irrelevant/master_or_other_branch