Hans Petter Selasky 42fabcc35c Reduce the number of interrupts in USB host mode for the DWC OTG
controller driver by piggybacking the SOF interrupt when issuing new
and checking old transfers. Number of interrupts was reduced by 30%
when doing Isochronous transfers.

Use correct GINTMSK_XXX macros when accessing the DWC OTG interrupt
mask register.

Add code to adjust the frame interval register which influences the
SOF rate.

MFC after:	2 weeks
2014-05-06 09:12:32 +00:00
..
2013-07-24 18:32:15 +00:00
2014-03-17 07:19:19 +00:00
2014-04-18 16:19:33 +00:00