arm-trusted-firmware from devel:ARM:Factory:Contrib:Rockchip project
Select Your Operating System
Add repository and install manually
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:ARM:Factory:Contrib:Rockchip/standard/devel:ARM:Factory:Contrib:Rockchip.repo zypper refresh zypper install arm-trusted-firmware