The SMPTE2022 TX core only has one Ethernet clock.
If you want to place the Secondary Ethernet MAC IP in a different quad that requires a separate clock, then you will need to add an AXI4-Stream FIFO between the SMPTE2022-5/6 core and the Ethernet MAC.
You will only need to add the AXI4-Stream FIFO between the SMPTE2022-5/6 core and the Ethernet MAC that are on different clocks.
- Connect the SMPTE2022-5/6 TX core primary Ethernet interface directly to the primary Ethernet MAC core, connecting the clock from the primary Ethernet MAC core to the SMPTE2022-5/6 TX Ethernet clock port (eth_clk)
- Then connect the SMPTE2022-5/6 TX secondary Ethernet interface to a small AXI4-Stream FIFO and then to the secondary Ethernet MAC core, allowing the secondary Ethernet MAC core to use a separate clock.