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Date: Sun, 9 Oct 2011 18:58:38 +0200
From: Marius Strobl <marius@alchemy.franken.de>
To: dave jones <s.dave.jones@gmail.com>
Message-ID: <20111009165838.GA19886@alchemy.franken.de>
References: <CANf5e8bcAfrXX+uqzVRoZJPmsvyPegx+FOYHSt-GHwEigUCoeg@mail.gmail.com>
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Cc: freebsd-net@freebsd.org
Subject: Re: Question about GPIO bitbang MII
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On Fri, Oct 07, 2011 at 10:34:58AM +0800, dave jones wrote:
> Hi,
> 
> Does FreeBSD have gpio bitbang api for MII? If not, any driver in tree using
> gpio-bitbang mii that I can refer to? Thanks.
> It seems like OpenBSD, NetBSD and Linux have added support to gpio bitbang mii,
> and it's useful for porting embedded devices.
> 

If what you are referring to is their mii_bitbang.[c,h] then I've a patch
which (im)ports these and converts drivers to take advantage of it here:
http://people.freebsd.org/~marius/mii_bitbang.diff
You can also hook up that generic MII bitbang'ing code up to GPIO.

Marius