The USB 2.0 IP has a combination of Analog and Digital logic design blocks.
The basic analog blocks are Drivers and Pads. While the Digital logic is the USB Core.
You can get one using Synopsys Design Ware. Or for UMC, ISI, GlobalUnichip...etc.
ARC
Agree with Gold_kiss,the USB 2.0 PHY IP has a combination of Analog and Digital logic design blocks. While the basic analog blocks are not only Drivers and Pads but also Analog PLL for 480Mbps high speed transition.
So it depends on which foundry's process you select.You may ask the foundry for the ip or third-part ip provider.Then you can exchange IP with the provider.