From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relais.progression.net ([207.253.63.13]) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 18ECMB-0003bt-00 for ; Tue, 19 Nov 2002 17:40:16 +0000 Received: from envitech.com (usrppp145.progression.net [207.253.63.145]) by relais.progression.net (8.9.3/8.9.3) with ESMTP id NAA13836 for ; Tue, 19 Nov 2002 13:10:41 -0500 Message-ID: <3DDA7F28.8030309@envitech.com> Date: Tue, 19 Nov 2002 13:12:56 -0500 From: Richard Brunelle Reply-To: rbrunelle@envitech.com MIME-Version: 1.0 To: linux-mtd@lists.infradead.org Subject: BBRAM Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: Hi, I have a question concerning a BBRAM from ST, the M48Z512A. I'm using the BBRAM mapped at 0xE0000 on a single board computer from VersaLogic. This BBRAM is pageable through access of a special register on the single board computer. I want to map the BBRAM as part of the file system. As I understand MTD is appropriate for this purpose, am I right? If yes, what are the options in the kernel configuration I need to enable to let the system access the device? My guess is CONFIG_MTD_MTDRAM with the appropriate position set to 0xE0000. In this case, what type of device should I see in /dev/? Thanks. Richard Brunelle