[U-Boot] U-boot on Acer Chromebook R13

Hello,

I don't know if this is the place to ask that, but I'm having some trouble with my chromebook. My goal is to completly delete chromeOS and replace it with Archlinux. I successfully installed it on the internal storage but now I want to remove the boot message to directly boot into arch. So is there any non-verified U-boot for the Acer chromebook R13? Or can I just use the Samsung one?

Thanks