testing
nothing
minimize irq.h
todo
doxygen, i2c removal
spacing
clean up linker script
readme
todo
turning on polled mode but only for running test suite
configurable polled mode, fix uart params for orig beagleboard
all bsps together
debugging
work
both work in irq mode now - just the getReg)(pNS16550, NS16550_RECEIVE_BUFFER fucking hangs on bbxm
bbxm and bbw both work in unpolled mode

bbxm may not read RHR if it's empty -> data abort exception; the ns16550
code does a blanket read.