We're using both the DDR2 and the DDR3 c6a8168 EVMs and following the instructions on the Wiki page:
http://processors.wiki.ti.com/index.php/Linux_Aware_Debug_(CCSv4.x)
We have only been partially successful getting CCS to debug Linux-side code running on the ARM Cortex-A8. I can set breakpoints but I get an error upon reaching one. CCS is apparently not detecting the presence of Linux. See my posting on the Code Composer Forum:
http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/135203.aspx
CCS works fine though debugging DSP-side code. How do we achieve full functionality?
Lee