This runs the HACE u-boot code from the ASPEED SDK in userspace. You must be
running a kernel with CONFIG_STRICT_DEVMEM turned off.
It contains many bad ideas that you should not copy.
The expected output is
2338705c3d1dd43a6e06c7dacace1a929a7ceec44473af1c7b3700df891cdd803c8cd85f9ebbb88c1b55d52a89b6a7feeb18d6a1dca05d2d39ace7d90928a5fb
You can verify this on your machine:
$ echo -n -e '\xde\xad\xbe\xef\xde\xad\xbe\xef' | dd of=/tmp/test
$ sha512sum /tmp/test
2338705c3d1dd43a6e06c7dacace1a929a7ceec44473af1c7b3700df891cdd803c8cd85f9ebbb88c1b55d52a89b6a7feeb18d6a1dca05d2d39ace7d90928a5fb /tmp/test
The 'plot.py' program can be used to benchmark the HACE against a userspace sha512sum.
The aspeed_hace.c and aspeed_hace.h files come from ASPEED's SDK, and are
licenced under the GPL v2.0 or later.
All other code is licenced under the Apache Licence, version 2.0.
Copyright 2021 IBM Corp.