From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750858AbWEIO2y (ORCPT ); Tue, 9 May 2006 10:28:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750997AbWEIO2x (ORCPT ); Tue, 9 May 2006 10:28:53 -0400 Received: from perpugilliam.csclub.uwaterloo.ca ([129.97.134.31]:44220 "EHLO perpugilliam.csclub.uwaterloo.ca") by vger.kernel.org with ESMTP id S1750858AbWEIO2x (ORCPT ); Tue, 9 May 2006 10:28:53 -0400 Date: Tue, 9 May 2006 10:28:51 -0400 To: Carlos Ojea Castro Cc: linux-kernel@vger.kernel.org Subject: Re: LPC bus in a geode sc1200 Message-ID: <20060509142851.GA2837@csclub.uwaterloo.ca> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 09, 2006 at 11:11:17AM +0200, Carlos Ojea Castro wrote: > I wrote a driver to use LPC bus in a geode sc1200. For now I am able > to transmit an read or write "I/O cycle" to the LPC. > What I want to do now is to read or write to the LPC using a "Memory cycle". > > Anyone knows how can I archieve this? > is there another list more suitable for my question? The LPC bus is the same as ISA as far as software is concerned. You just read and write to it, or do DMA or whatever you want. I have an FPGA on port 0x500 on the LPC bus of an sc1200, and I just read and write the registers there the same as any other hardware. Len Sorensen