The role and responsibility of the system firmware is to initialize the silicon and boot the operating system. One important task in the silicon initialization is to configure the system registers into a secure state. We cannot touch all possible silicon security lock registers in this chapter. As such, we will only discuss some of the more important register settings as examples.
Flash Lock
The system firmware is located on the flash part. It should be locked and only have the firmware allowed to perform the secure unlock and ...
