P1025 processor memory map is flexible and can be programmed. If you run your processor under debugger control, than memory map is programmed by debugger' target initialization file.
For more information please look P1025 Reference Manual, Chapter 2 "Memory map".
P1025 Reference Manual is available for download from P1025 Product Page, "Documentation" tab:
https://www.nxp.com/products/processors-and-microcontrollers/power-architecture-processors/qoriq-pla...