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Date:      Sun, 3 Jan 2016 02:00:52 -0800
From:      NGie Cooper <yaneurabeya@gmail.com>
To:        Ilya Bakulin <ilya@bakulin.de>
Cc:        "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, Adrian Chadd <adrian.chadd@gmail.com>, Alexander Motin <mav@freebsd.org>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: MMC/SDIO stack under CAM
Message-ID:  <CB660D10-3279-4D9F-96BB-D7F33D407627@gmail.com>
In-Reply-To: <5688F015.4090002@bakulin.de>
References:  <20140216111153.GA74858@olymp.kibab.com> <5C2CF572-360D-4CA0-81C7-18A5C455AED5@bsdimp.com> <20140224142642.GA32538@olymp.kibab.com> <CAJ-VmomNzCMc1T=0jAnyd_uGXbvgeTzZTtmhUPSvZ0DKUEjtKg@mail.gmail.com> <53120EE8.1080600@bakulin.de> <CAJ-VmonPkdVVq7nC3FdopcgzmSTsj3gTO=Cghx-62XS5K25YQg@mail.gmail.com> <5688F015.4090002@bakulin.de>

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> On Jan 3, 2016, at 01:55, Ilya Bakulin <ilya@bakulin.de> wrote:
>=20
> So, more than one year has passed, and I'd like to resurrect this work
> and move forward.
>=20
> I have uploaded a new diff and created a completely new revision to
> track the development: https://reviews.freebsd.org/D4761
>=20
> What it is able to do now:
>=20
> * Read/write on SD/SDHC/MMC cards!
> * Detect SDIO cards and create devices that correspond to SDIO =
functions
>=20
> This all works only on BeagleBone currently, because some changes need
> to be done in each SDHCI-compliant driver to make it interact with =
CAM.
> I have purchased a Wandboard Quad that has an integrated SDIO WiFi =
chip,
> so I hope to tweak its SDHCI driver as well.
>=20
> I haven't profiled the stack because:
> * Now we have only SD/MMC cards that are slow anyway;
> * I don't know how to do it in FreeBSD :-)

As for =93I don=92t know how=85=94, please take a look at the wiki pages =
on dtrace: https://wiki.freebsd.org/DTrace . ktr might be helpful as =
well...

Cheers!
-NGie=



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