From: Pierre Ossman <drzeus-list@drzeus.cx>
To: Russell King <rmk+lkml@arm.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] MMC compatibility fix - OCR mask
Date: Sat, 18 Sep 2004 13:06:21 +0200 [thread overview]
Message-ID: <414C16AD.9020303@drzeus.cx> (raw)
In-Reply-To: <20040918114310.A13733@flint.arm.linux.org.uk>
Russell King wrote:
>On Sat, Sep 18, 2004 at 12:00:16PM +0200, Pierre Ossman wrote:
>
>
>>This patch avoids using a emtpy OCR mask for the initial power up. Since
>>some cards do not like a one bit-mask a routine has been added which
>>grows the mask to three bits (one extra bit on each side) if necessary.
>>
>>
>
>As I already replied on this topic, this will not work on hosts
>which support a wide range of supplies. If you send an OP_COND
>command with bits set outside the MMC cards allowable range, they
>go gaga.
>
>
>
Sorry, my bad. I was reviewing the previous discussion about this in an
attempt to find a solution. Completely missed that case. Please
disregard this patch then.
The problem still remains though. Do you know what the wide range
controller you have send when used with the manufacturer's driver?
Rgds
Pierre
next prev parent reply other threads:[~2004-09-18 11:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-18 10:00 [PATCH 3/3] MMC compatibility fix - OCR mask Pierre Ossman
2004-09-18 10:43 ` Russell King
2004-09-18 11:06 ` Pierre Ossman [this message]
2004-09-18 11:21 ` Russell King
2004-09-18 11:30 ` Pierre Ossman
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