Please check the https://openwrt.org/supported_devices, if it's not explicitly listed as supported, then it isn't. And search this forum for your device first (there are at least two existing threads, detailing the problems arising when trying to support it).
That aside, I wouldn't be too confident that it actually can do advanced routing at 1 GBit/s linespeed either, see Comparative Throughput Testing Including NAT, SQM, WireGuard, and OpenVPN for benchmarks using this SOC. If you want to reach 1 GBit/s routing performance, you'll inevitably end up with x86_64 or at least mvebu.