Arria10 U-Boot USB host support

Has anyone had any luck getting USB host support working under U-Boot on an Arria10 board?
I’m working with the socfpga_v2014.10_arria10_bringup branch of U-Boot, and it doesn’t look like it has the DWC2 USB host driver that we used previously on the Cyclone5.

I don’t seem to be able to get the current mainline U-Boot to run on the devkit - the image produced is too large for mkpimage to operate on, and programming the resultant image into SPI doesn’t work properly. I think it only has support for MMC booting, but I haven’t seen any positive confirmation of that.