linux-kernel - Re: [PATCH 0/4] sdhci-of: Some fixes for high-speed and 4-bit SD cards

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Message-ID: <20090807184138.GA22322@oksana.dev.rtsoft.ru>
Date:	Fri, 7 Aug 2009 22:41:38 +0400
From:	Anton Vorontsov <avorontsov@...mvista.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Ben Dooks <ben@...ff.org>, linux-kernel@...r.kernel.org,
	sdhci-devel@...ts.ossman.eu, linuxppc-dev@...abs.org,
	Pierre Ossman <pierre@...man.eu>
Subject: Re: [PATCH 0/4] sdhci-of: Some fixes for high-speed and 4-bit SD
 cards

On Fri, Aug 07, 2009 at 08:39:40PM +0400, Anton Vorontsov wrote:
> Hi all,
> 
> Finally I've got a bunch of SD cards to test eSDHC in various ways,
> and more importantly now I have a lot of SDHS cards. ;-)
> 
> So, here are few fixes that make eSDHC work flawlessly on MPC83xx
> SOCs with all SD and MMC cards that I have.
> 
> On MPC85xx (namely MPC8536 and MPC8569) SOCs there is one issue:
> the cards can be detected and read just fine, but writing doesn't
> work (no interrupts received). I'm currently investigating this.

Solved. It appears that eSDHC on MPC85xx has a normal write-protect
reporting. And eSDHC actually checks the WP pin, thus doesn't let
anybody to do any writes... I'll make some additional patches and
will send v2 soon.

-- 
Anton Vorontsov
email: cbouatmailru@...il.com
irc://irc.freenode.net/bd2
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