When I use Base System Builder to target boards SP601, SP605, and ML605 for AXI designs, I only have the option for board revision 1.0, whereas my ML605 board is revision D and revision C for the SP605 and SP601 boards.
Solution
Base System Builder mistakenlydisplays the incorrect board revisions. However, this problem is scheduled to be fixed in the 12.4 software release.