You could download QCVS for Power Architectures Rev 4.5 from NXP public Web site.
Please login "www.nxp.com", then download the installation file from "My NXP Account->Software Licensing and Support->View accounts->NXP Software->QorIQ Configuration and Validation Enablement Suite-> 4.5 QCVS offline installation packages for CodeWarrior for Power Architectures Rev 4.5”.
After downloading QCVS for PA 4.5, please open CodeWarrior for PA 10.5.1 IDE, then install QCVS package from "Help->Install New Software->Add->Archive".
Then reopen CodeWarrior IDE, create a QCVS PBL project from "File->New->QorIQ Configuration Project", please enter "Project name" and select the processor to be used, click Next. Then in "Toolset selection" panel, please select "PBL - Preboot Loader RCW configuration"