So, I dug into the 2378 USB DMA stuff, and looks like the 2378 chip
has it's normal general purpose DMA controller, as well as a USB
specific DMA controller that is the same as the 214x controller. And
to my pleasant surprise, I simply compiled and ran with the current
214x DMA code and voila, USB DMA on the 2378 chips working as
expected. It's always nice when things just work :)



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