InAM335xtheROMcodeservesasthebootstraploader,sometimesreferredtoastheInitialProgramLoader(IPL)orthePrimaryProgramLoader(PPL).ThebootingiscompletedintwoconsecutivestagesbyU-Bootbinaries.Thebinaryforthe1stU-BootstageisreferredtoastheSecondaryProgramLoader(SPL)ortheMLO.Thebinaryfort