Does the current Linux kernel fpr i.MX6 support:
1) Encrypting block devices and/or filesystems using hardware encryption via CAAM?
2) If not, encryption done by the kernel but using a key that is generated from the builtin hardware key or the master key from SNVS?
3) CAN-Filtering using the Flexcan interface?
4) Feeding the hardware watchdogs?
(Pointers to the relevant documentation for the Linux features are also very welcome.)