Beaglebone USB driver (Mentor Graphics OTG)
Oleksandr Tymoshenko
gonzo at bluezbox.com
Sat Apr 6 20:50:56 UTC 2013
Hello,
This is first iteration of Host Mode support for Mentor Graphics
OTG USB controller. I tested it by building kernel with USB memory
stick mounted as /usr/obj, resulting kernel was bootable and worked fine.
I reused some ideas (mostly for channel-management) from
DWT OTG driver.
Some pieces are still missing:
- Support for SPLIT transactions, I don not have high speed hub
right now to test it, but implementing it should be really
straighforward.
- Isochronous transfers. I do not have hardware to test this. Does
anybody have any suggestion about simple use case?
- Control Data OUT transaction
- Wrapper for atmel HW has not ben synced with new core logic requirements
yet
Please review and test. I tested it only with gcc-built kernel/world.
Now when
first iteration is finished I'm going to update all my boards to new
world order
(clang/EABI) and re-test this stuff.
Patch:
http://people.freebsd.org/~gonzo/arm/patches/beaglebone-musb.diff
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