https://bugzilla.kernel.org/show_bug.cgi?id=14945
--- Comment #11 from Alex Deucher alexdeucher@gmail.com 2013-02-27 17:04:56 --- Created an attachment (id=94191) --> (https://bugzilla.kernel.org/attachment.cgi?id=94191) add quirk for 9100 board
This should fix your board.
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