To get access to the TI software update site, you must register your EVM using the following link
http://focus.ti.com/dsp/docs/dspsplash.tsp?contentId=33169
After successful registration, you will get an e-mail with instructions on how to set up a PIN (or password) which you can use to access the software update site
https://www-a.ti.com/extranet/cm/product/dvevmsw/dspswext/general/homepage.shtml