From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from n1.cetrtapot.si ([212.30.80.17]) by canuck.infradead.org with esmtp (Exim 4.43 #1 (Red Hat Linux)) id 1DbJjI-0005BT-Cf for linux-mtd@lists.infradead.org; Thu, 26 May 2005 10:53:01 -0400 Message-ID: <4295E2BE.3070501@cetrtapot.si> Date: Thu, 26 May 2005 16:52:46 +0200 From: Hinko Kocevar MIME-Version: 1.0 To: Andrew Victor References: <4294D4F2.6010105@cetrtapot.si> <1117089331.6175.19.camel@fuzzie.sanpeople.com> In-Reply-To: <1117089331.6175.19.camel@fuzzie.sanpeople.com> Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org Subject: Re: Serial flash memory support List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Andrew Victor wrote: > hi Hinko, > > >>Has anybody done something on the SPI flash memory devices already? > > > Yes, there is a driver for Atmel's DataFlash. > ST serial flash seems pretty close according to the specs. > The driver is included in the 2.4 ARM-Linux kernels > (www.arm.linux.org.uk) and the 2.6 patches for the AT91RM9200 processor > (http://maxim.org.za/AT91RM9200/2.6/). > Great, 2.6 patch looks promising. Thank you. Can you provide information about timings for accessing SPI serial flash. As I could see from kernel boot dump on the maxim.org.za page you seem to be using SPI serial flash for code and data. Our application has user data on the SPI serial flash and at boot time its contents is read - it has to be done as fast as possible. Is there some fs you could recomend for this purpose? regards, hinko k -- ..because under Linux "if something is possible in principle, then it is already implemented or somebody is working on it". --LKI