Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932605AbaFIWfn (ORCPT ); Mon, 9 Jun 2014 18:35:43 -0400 Received: from mail-vc0-f181.google.com ([209.85.220.181]:43719 "EHLO mail-vc0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932184AbaFIWfl (ORCPT ); Mon, 9 Jun 2014 18:35:41 -0400 MIME-Version: 1.0 In-Reply-To: References: <1397859600-11507-1-git-send-email-robherring2@gmail.com> <1397859600-11507-4-git-send-email-robherring2@gmail.com> <20140503220731.GA10927@kroah.com> <20140503221658.GA13403@kroah.com> Date: Mon, 9 Jun 2014 15:35:40 -0700 Message-ID: Subject: Re: [PATCH v2 3/7] tty/serial: convert 8250 to generic earlycon From: Tony Luck To: Greg Kroah-Hartman Cc: Rob Herring , Yinghai Lu , "linux-arm-kernel@lists.infradead.org" , Linux Kernel Mailing List , "linux-serial@vger.kernel.org" , Jiri Slaby , Catalin Marinas , Russell King , Will Deacon , Arnd Bergmann , Andrew Morton Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 9, 2014 at 3:25 PM, Tony Luck wrote: > Linus' tree (HEAD=963649d735c8) is spitting out all sorts of garbage > on the serial console - as if the baud rate is being periodically set > to something weird, and then back to 112500. I see over a dozen > blocks of junk interspersed with good output. Ah - it seems that I need to be more specific on the cmdline console=uart8250,io,0x3f8,115200 makes all the garbage disappear. Do I need to update: Documentation/ia64/serial.txt which has the example of "console=uart,io,0x3f8"? -Tony -- 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/