From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756203AbYIOUf1 (ORCPT ); Mon, 15 Sep 2008 16:35:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754237AbYIOUfS (ORCPT ); Mon, 15 Sep 2008 16:35:18 -0400 Received: from moutng.kundenserver.de ([212.227.126.187]:50583 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753748AbYIOUfR (ORCPT ); Mon, 15 Sep 2008 16:35:17 -0400 Message-ID: <48CEC71F.3000006@manoweb.com> Date: Mon, 15 Sep 2008 13:35:43 -0700 From: Alessio Sangalli User-Agent: Thunderbird 2.0.0.16 (X11/20080724) MIME-Version: 1.0 To: linux-kernel Subject: Driver for tightly coupled memory X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Provags-ID: V01U2FsdGVkX1/gOXVEzqZ6Zwj5/UKz7Rl9cD4zW+qoHTt2EmW DpZ+CEQ7L4p/HFeOSZMJH7UV4uYLJxpP0IdIusjPN/bDTvXivz QxSxZy82L0utQ2ooj2IwA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, the platform I am working on right now (ARM) has a so called 'TCM' (tightly coupled memory) that is some 8 to 32kB of SRAM in the chip, no waitstates, very high bandwidth, and it is possible to access it *while* accessing main memory. It may be a very good thing (for example) to implement a software FIFO to be used in ISRs or such. Do you know of any implementation of such software FIFO or any other kernel driver for TCMs? bye Alessio