Hi,
Since Ecosystem 5 OP_TEE is mandatory.
We have previously used SP_MIN which is not supported anymore.
The change from SP_MIN to OP_TEE costs us approximately an extra second in boot time, we need to limit this as much as possible.
I came across in the wiki here - "STMicroelectronics provides OP-TEE support that also embeds a secure monitor on Armv7. It can be replaced with a trusted OS or another trusted environment execution (TEE).".
I was wondering, is it possible to change OP-TEE to a different lighter vendor? If so, is there a document describing the steps necessary?
Thanks in advance
