Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755596AbbETVWe (ORCPT ); Wed, 20 May 2015 17:22:34 -0400 Received: from down.free-electrons.com ([37.187.137.238]:50056 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755561AbbETVW2 (ORCPT ); Wed, 20 May 2015 17:22:28 -0400 Date: Wed, 20 May 2015 23:22:24 +0200 From: Alexandre Belloni To: Robert Nelson Cc: Kevin Hilman , Nicolas Ferre , Arnd Bergmann , Olof Johansson , Boris BREZILLON , lkml , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH] ARM: multi_v7_defconfig: Add Atmel SAMA5 family Message-ID: <20150520212224.GB3244@piout.net> References: <1428051678-20450-1-git-send-email-alexandre.belloni@free-electrons.com> <555AFF3F.10400@atmel.com> <9986808.t62JLgg5NJ@wuerfel> <20150519123358.GA15179@piout.net> <555B3463.2060700@atmel.com> <555B3A92.7010409@atmel.com> <555B4040.2090302@atmel.com> <20150520140856.GE3907@piout.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2023 Lines: 52 Hi, On 20/05/2015 at 10:18:16 -0500, Robert Nelson wrote : > On Wed, May 20, 2015 at 9:08 AM, Alexandre Belloni > wrote: > > Hi, > > > > On 20/05/2015 at 06:53:50 -0700, Kevin Hilman wrote : > >> FYI... This patch is now in linux-next, and boot tests for all the > >> sama5d[34] boards in kernelci.org have failed to boot. > >> > >> http://kernelci.org/boot/all/job/next/kernel/next-20150520/ > >> > > > > Hum, I'm pretty sure you see the heartbeat led blinking ;) > > > > I think I told you a while ago on IRC and this is part of the commit > > message. You have to use ttyAT0 instead of ttyS0 in your bootargs. I'm > > not sure how I can make that more obvious, I'm open to any idea. > > > > I'm planning to send a series adding stdout-path to the atmel boards > > when I'm back next week. Hopefully this will solve that issue. > > Alexandre, > > considering all the old boot-loaders, have you thought about adding a > compatibility config similar to: > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=00648d0282dcca1da453c0b20d27e24bf901a854 > We are not there yet. sama5_defconfig and at91_dt_defconfig will still produce kernels using ttyS and not ttyAT. The switch will not happen until you set CONFIG_SERIAL_ATMEL_TTYAT which has been present since 2.6.19. The issue is that it is mandatory to use it in a multi_v7 configuration because the 8250 driver is compiled in and is conflicting. Kevin and Tyler jumped on the introduction of sama5 in multi_v7 and got the issue. As long as you stick to the at91 only configurations, you will be fine ;) I hope this clarifies the thing :) -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- 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/