DB AU1550 and safeXcel DMA burst problem

linux-mips

DB AU1550 and safeXcel DMA burst problem

To:	<linux-mips@linux-mips.org>
Subject:	DB AU1550 and safeXcel DMA burst problem
From:	"David Sanchez" <david.sanchez@lexbox.fr>
Date:	Tue, 16 Aug 2005 11:11:40 +0200
Original-recipient:	rfc822;linux-mips@linux-mips.org
Sender:	linux-mips-bounce@linux-mips.org
Thread-index:	AcWiQoMIn9Tw9AzoTo2mhR3Tif7Ebg==
Thread-topic:	DB AU1550 and safeXcel DMA burst problem

Hi, 

I'm using the Security Engine of the DB AU1550 to compute SHA1 on files.

All is working fine but if I use a DMA burst greater than 8 words the
resulting SHA1 is incorrect !

Do you have the same behaviour ? Do you have an explanation of such a
behaviour ? Is it a HW bug ?

Thanks,

David

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