Hi,
I am testing the secured boot of the OMAP L138.
I successfully had boot the OMAP without security using example provided in the "OMAPL138-DSP-LED" wich is part of "Using the OMAP-L1x8 Bootloader" doc.
What I understood that I need to generate the combined AIS file from ARM and DSP "*.OUTs", programm it to the SPI FLASH and restart the board (I did all using the provided TI's utilities: "AISgen for D800K600" and the "sfh_OMAP-L138.exe").
Currently I don't want to encrypt the KEK.
- In the case of the secured boot I don't understand the steps need to be done with TI's utilities. Executable of the ARM should be not encrypted (so I use the non secure utility), the executable of the DSP need to be encrypted (so I use secure AIS). Now I need to combined this two images. Do I need ro write my own application or this application is provided?
- In SPI FLASH boot mode DSP loads application from zero address of the flash, unless it's mentioned otherwise (entry point in non secure case), this managed internally by the OMAP like in the first (non secure) scenario hen combined images was progammed into the SPI FLASH (DSP image was the second image, therefore not located from the start of the flash). How do I specify this entry point if I'll need to write my own application for combining two images?
Thanks
Dani