FSL P5020/Cyrus+ Board: Poweroff and Restart Support

Hello,

We would like to add poweroff and restart support for the Cyrus+ board 
[1] [2] to the mainline vanilla kernel.
There is a patch for adding poweroff and restart support. (attached)
It works but I am not sure if it is good enough for the mainline vanilla 
kernel.
Please post some suggestions and comments about this patch.

Thanks,
Christian


[1] http://wiki.amiga.org/index.php?title=X5000
[2] https://www.amigaos.net/hardware/133/amigaone-x5000