Hi Aisha
it may be useful to look at automatic secure u-boot.imx and zImage generation scripts :
imx-test-3.14.28-1.0.0/.../mxc_secureboot/ folder
http://repository.timesys.com/buildsources/i/imx-test/imx-test-3.14.28-1.0.0/
Workshop - Android Secure Boot
https://community.freescale.com/docs/DOC-104799
Best regards
igor
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