Date: Sun, 6 Jul 2008 01:24:35 +0200
From: Pierre Ossman <drzeus-list@drzeus.cx>
To: Sascha Sommer <saschasommer@freenet.de>
Cc: sdricohcs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: Status of Ricoh Bay1Controller driver?
Message-ID: <20080706012435.016358d6@mjolnir.drzeus.cx>
In-Reply-To: <200807052111.49807.saschasommer@freenet.de>
References: <20080705115039.77bf7e1c@mjolnir.drzeus.cx>
	<200807052111.49807.saschasommer@freenet.de>
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On Sat, 5 Jul 2008 21:11:49 +0200
Sascha Sommer <saschasommer@freenet.de> wrote:

>=20
> There is still some hack for ACMDs. I know you won't like that but I did =
not =20
> get the SD_APP_SEND_SCR command to work without it.
>=20
> MMC_SEND_EXT_CSD does not work (also not with that ACMD hack) and prints =
out=20
> something like:
>=20

The SCR and EXT_CSD are both the only data transfers that are done in
1-bit mode in the respective init paths. Are you sure that hack you
have for ACMDs is really for ACMDs and not for 1-bit transfers?

(And you're right about me not liking that hack, but I can let that one
slide as long as you agree it is important to get rid off ;))

> mmc0: unable to read EXT_CSD, performance might suffer.
>=20
> The card works without problems after this message.
>=20

Yeah, it works for older MMC cards. The newer, larger ones will fail
when it can't read the EXT_CSD though.

Rgds
--=20
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  rdesktop, core developer          http://www.rdesktop.org

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