CAAM Initialization Failure on i.MX1711

[Trossi]

Hi everyone,

I'm currently working on enabling the CAAM (Cryptographic Acceleration and Assurance Module) in my bare-metal project using the i.MX1711. However, I'm encountering an issue where the CAAM_Init() function returns a non-zero value, indicating a failure during initialization.

Upon debugging, I traced the error to the caam_out_job_ring_test_and_remove() function, which fails during the RNG (Random Number Generator) initialization step.

I also tested the official SDK example and got the same result.

Has anyone experienced a similar issue or have suggestions on what might be causing this failure? Any insights or recommended steps to troubleshoot this would be greatly appreciated.

Thanks in advance!

[Trossi · Accepted solution]

I managed to sold this issue.
The solution was use non cacheable RAM to store the data related to the cryptograph. 

I'm not sure, but I that I understood this should only be required to the job rings.