Some questions about dm8168's emacs and rtl8211 phy

In out custom board,we have two rtl8211EG connect to dm8168's emacs.

we use DVRRDK_04.00.00.03.

We hope this two phy chips work at the same time.

1.  which part do I need to modify in kernel configuration?

2. DO I need to add  phy driver to kernel?

3.Do I need to enable following configs in kernel configuration?

Device Drivers -->Network device support-->PHY Device support and infrastructure-->Drivers for Realtek PHYS

4. What's the meaning of "Dual Standalone EMAC mode" in TI81XX_PSP_ETHERNET_Switch_User_Guide。