From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261182AbVGNOlT (ORCPT ); Thu, 14 Jul 2005 10:41:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261481AbVGNOlK (ORCPT ); Thu, 14 Jul 2005 10:41:10 -0400 Received: from webapps.arcom.com ([194.200.159.168]:35077 "EHLO webapps.arcom.com") by vger.kernel.org with ESMTP id S261182AbVGNOkX (ORCPT ); Thu, 14 Jul 2005 10:40:23 -0400 Message-ID: <42D67954.70101@arcom.com> Date: Thu, 14 Jul 2005 15:40:20 +0100 From: David Vrabel User-Agent: Debian Thunderbird 1.0.2 (X11/20050602) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Alex Williamson CC: Russell King , Linux Kernel Subject: Re: serial: 8250 fails to detect Exar XR16L2551 correctly References: <42CA96FC.9000708@arcom.com> <20050706195740.A28758@flint.arm.linux.org.uk> <42CD2C16.1070308@arcom.com> <1121108408.28557.71.camel@tdi> <20050711204646.D1540@flint.arm.linux.org.uk> <1121112057.28557.91.camel@tdi> <20050711211706.E1540@flint.arm.linux.org.uk> <1121116677.28557.104.camel@tdi> <1121274296.4334.58.camel@tdi> <1121277829.4334.76.camel@tdi> In-Reply-To: <1121277829.4334.76.camel@tdi> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Jul 2005 14:51:11.0156 (UTC) FILETIME=[7990E740:01C58883] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alex Williamson wrote: > > David, would you mind > trying this on the XR16L255x part? (ie. don't use console=ttyS, use > console=uart,...) Thanks, I wasn't even aware you could do this... These are the serial ports I have: ttyS0 at MMIO 0xc8000000 (irq = 15) is a XScale IXP425 internal ttyS1 at MMIO 0xc8001000 (irq = 13) is a XScale " " ttyS2 at MMIO 0x53000000 (irq = 21) is a XR16550 XR16L2551 ttyS3 at MMIO 0x53000008 (irq = 21) is a XR16550 " I tried console=uart,mmio,0x53000000,115200 and my board didn't print anything to the console and the boot failed somewhere before starting network (I don't know exactly where or why since I couldn't see any messages). Using console=ttyS2,115200 works fine. What's 8250_early.c for anyway? console=ttyS... has always worked fine for me. David Vrabel -- David Vrabel, Design Engineer Arcom, Clifton Road Tel: +44 (0)1223 411200 ext. 3233 Cambridge CB1 7EA, UK Web: http://www.arcom.com/