git clone toolchain-mmu

I was trying to follow the (possibly old) instructions on the nioswiki to set up everything I need to build Linux to run on NIOS II with the default MMU (and some custom hardware). There is a command on there that does not seem to run anymore:

git clone git://sopc.et.ntust.edu.tw/git/toolchain-mmu.git

Possibly this server is no longer there? I know I am probably asking something I will eventually learn by reading everything here, but I am feeling the pressure of time... Are there some more up-to-date instructions I should be following?

Thanks.