TF-M is going to migrate to Mbed TLS PSA configuration scheme which is recommended by Mbed TLS. With this new feature, TF-M is able to:
- more conveniently to align and check TF-M Crypto feature setting against Mbed TLS configuration.
- enable the HW crypto accelerator to use PSA drivers and get rid of Mbed TLS software implementation. Therefore, it can decrease the Crypto SW code size for HW accelerator.
After migrating to Mbed TLS PSA configuration scheme, TF-M ROM size will save about 6.5kB.
The general
mbedtls-psa-configuration patches are going to be merged soon. While the HW crypto patch is still under platform owner review until
this Friday.
It is welcome that if you have any comments and suggestions : )
Best Regards,
Summer