AM3703: TrustZone support

Daria Kiseleva

Expert 3175 points

Part Number: AM3703

Hi Team,

My cutomer needs to implement additional cybersecurity functions in on-market product with Sitara AM3703.

Is „TrustZone” supported on this microprocessor ?

Is there any documentation available for it?

Thank you,

Daria

over 3 years ago

0 Nick Saulnier over 3 years ago

TI__Guru** 109420 points

Hello Daria,

Apologies for the delayed response here. I am pinging the thread owners to see if your question needs to get sent to another team member.

Please note that AM37x is an older device, and we can no longer offer hardware and software design support for it. So if there is existing TrustZone documentation for AM37x, we can look for that documentation. However, we will not be able to answer any follow-up questions about it.

Regards,

Nick

0 Stefan Lintner over 3 years ago in reply to Nick Saulnier

TI__Expert 5235 points

Hi Nick,

please let me know if there is any documentation available.
I couldn't find any on the web.

BR,

Stefan

0 Nick Saulnier over 3 years ago in reply to Stefan Lintner

TI__Guru** 109420 points

Reassigning to Hong. Hong, can you please comment?

Thanks,

Nick

0 Hong Guan64 over 3 years ago in reply to Nick Saulnier

TI__Guru* 76300 points

Hello,
AM37xx is one of legacy device, where there's HS version with TZ secure boot, but the HS version is "special customer P/N".
As Nick explained earlier, "we can no longer offer hardware and software design support for it".
Best,
-Hong

0 Stefan Lintner over 3 years ago in reply to Hong Guan64

TI__Expert 5235 points

Hi Hong,

Thank you for this insight!
So i understand correctly that part number AM3703CBP does not have any TZ features?

BR,
Stefan

0 Hong Guan64 over 3 years ago in reply to Stefan Lintner

TI__Guru* 76300 points

Hello Stefan,
AM370x HS version has "a special customer P/N" to have TZ support in boot process.
There's no TZ support in boot process for any catalog P/N (i.e. AM3703CBP).
Best,
-Hong

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AM3703: TrustZone support