How to Statically Assign IP address to Pine64?

[spruce1]

I would like to statically assign an IP address to my Pine64 on my home network, however, I've noticed that every time I boot the board it comes up with a different ethernet MAC address. This behavior is unlike anything else on my home network which have fixed MAC addresses. Normally, assigning static ip addresses is easy for my home network --- surf to my wifi router and enter MAC address and static ip address assignment in its DHCP table and then I'm done.
With a new MAC address at each boot completely circumvents this simple solution. What can I do to fix the ip address assignment. BTW, I've installed and am running ArchLinux.

Thanks.