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From: Pierre Ossman <drzeus-list@drzeus.cx>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>
Subject: Re: MMC performance
Date: Mon, 18 Oct 2004 21:26:13 +0200	[thread overview]
Message-ID: <417418D5.60901@drzeus.cx> (raw)
In-Reply-To: <416ACA91.6040405@drzeus.cx>

I've solved (sort of) the problem with corrupt data when doing multiple 
block writes. It seems the spec I have for the host controller isn't 
quite correct when it comes to clock frequencies.
Copying the value that Windows uses (it doesn't adapt to the card) got 
the card working perfectly. This value is (according to my spec) invalid 
though. I need to hook up an oscilloscope to the device to figure this 
one out.

Russell, the users of my driver have tested the write multiple block 
patch and haven't run into any problems. If you haven't found any issues 
I suggest making it standard.

Rgds
Pierre


  reply	other threads:[~2004-10-18 19:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-11 11:05 MMC performance Pierre Ossman
2004-10-11 12:19 ` Russell King
2004-10-11 13:18   ` Alan Cox
2004-10-11 15:27     ` Pierre Ossman
2004-10-11 18:01       ` Pierre Ossman
2004-10-18 19:26         ` Pierre Ossman [this message]
2004-10-11 13:49   ` Pierre Ossman

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