From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753256AbYIPJf2 (ORCPT ); Tue, 16 Sep 2008 05:35:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751186AbYIPJfU (ORCPT ); Tue, 16 Sep 2008 05:35:20 -0400 Received: from aeryn.fluff.org.uk ([87.194.8.8]:57694 "EHLO kira.home.fluff.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751173AbYIPJfU (ORCPT ); Tue, 16 Sep 2008 05:35:20 -0400 Date: Tue, 16 Sep 2008 10:35:13 +0100 From: Ben Dooks To: Alessio Sangalli Cc: linux-kernel Subject: Re: Driver for tightly coupled memory Message-ID: <20080916093513.GF1916@fluff.org.uk> References: <48CEC71F.3000006@manoweb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48CEC71F.3000006@manoweb.com> X-Disclaimer: These are my own opinions, so there! User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 15, 2008 at 01:35:43PM -0700, Alessio Sangalli wrote: > 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. This isn't the right list to be discussing this on, try looking for linux-arm-kernel instead. It will get your question to the attention of more people knowledgable about the ARM specifics. > Do you know of any implementation of such software FIFO or any other > kernel driver for TCMs? IIRC, there's no current support for using TCMs. > bye > Alessio > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Ben (ben@fluff.org, http://www.fluff.org/) 'a smiley only costs 4 bytes'