AM6442: Interacting With TrustedFirmware-A from Non-Secure Linux World

Part Number: AM6442

Tool/software:

We need some sensitive services from TF-a such as (CCA) attestation token queries and measured boot etc on AM6442 cores, however, TF-a documentation is not that helpful. 


And, I suppose there shall be customization/porting by TI as well, we need to consider, and hopefully, everything is mature by the TI BSP.

This presentation show exactly what we need just wondering if it is there by the TI BSP : PowerPoint Presentation

We are using the Yocto build from TI.

I have to warn, I am not familiar with Yocto, which makes everything challenging with me as well.

1. Trying to enable the attestation trusted service by following this article : meta-arm - Layer containing support for Arm products
by adding

  • CONFIG_ARM_FFA_TRANSPORT=y,
  • arm-ff
  • ts-attestation

but we are getting error like 

"ERROR: Nothing PROVIDES 'ts-sp-attestation' (..../recipes-bsp/optee/optee-os_4.1.0.bb DEPENDS on or otherwise requires it) "

ts-sp-attestation was skipped.

I a wondering is there a package missing?