Can rocket core use PS7 side FCLK0 instead of external clock input?

[zhh124]

I try to port fpga-zynq to a new board, this board don't have external clock source. Can I use PS7 generated FCLK0 instead of external clock?

I had tried this method, but it seems not work. PS7 side linux successfully boot-up, but run below command have no response: ./fesvr-zynq pk hello

My chip is ZYNQ7010, I had use rv64ima toolchain to re-build the hello program.