Question about GPIO bitbang MII

YongHyeon PYUN pyunyh at gmail.com
Mon Oct 10 19:24:28 UTC 2011


On Sun, Oct 09, 2011 at 06:58:38PM +0200, Marius Strobl wrote:
> 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

Patch looks good to me.
What about other drivers(rl(4), bm(4), lge(4), tl(4), nge(4), wb(4)
and xe(4))?

> You can also hook up that generic MII bitbang'ing code up to GPIO.
> 
> Marius


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