For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/hardware:FPGA/openSUSE_Tumbleweed/hardware:FPGA.repo
zypper refresh
zypper install yosys
For openSUSE Factory zSystems run the following as root:
zypper addrepo https://download.opensuse.org/repositories/hardware:FPGA/openSUSE_Factory_zSystems/hardware:FPGA.repo
zypper refresh
zypper install yosys
For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/hardware:FPGA/openSUSE_Factory_PowerPC/hardware:FPGA.repo
zypper refresh
zypper install yosys
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/hardware:FPGA/openSUSE_Factory_ARM/hardware:FPGA.repo
zypper refresh
zypper install yosys
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/hardware:FPGA/15.6/hardware:FPGA.repo
zypper refresh
zypper install yosys
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/hardware:FPGA/15.5/hardware:FPGA.repo
zypper refresh
zypper install yosys