Testing SecureBoot without blowing fueses on LS1028a

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Testing SecureBoot without blowing fueses on LS1028a

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pb3
Contributor II

Hi
I've got a question regarding on how to test SecureBoot procedure on LS1028A without CodeWarrior and debugger and also without blowning fuses (except for the OTPMK).

 

Suppose I would like to do the following:

- boot the board

- stop in u-boot

- write OTPMK and fuse it

- write SRKHR mirror registers from u-boot

- set SB_EN in RCW

- reset the board

Is it possible to do a reset (how?) that would allow to retain the values of SRKHR mirror registers without blowing them into fueses persistently, so that the whole SecureBoot procedure will be executed?

I do not have access to CodeWarrior nor to debugger yet, but I need to somehow test te procedure.

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pb3
Contributor II

One additional info - I'm testing it on LS1028ARDB board.

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