Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422662AbbD2ITO (ORCPT ); Wed, 29 Apr 2015 04:19:14 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:48293 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031314AbbD2ITJ convert rfc822-to-8bit (ORCPT ); Wed, 29 Apr 2015 04:19:09 -0400 From: Vineet Gupta To: Sascha Hauer , Eddie Huang CC: Greg Kroah-Hartman , Matthias Brugger , "srv_heupstream@mediatek.com" , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , "Catalin Marinas" , Will Deacon , "Jiri Slaby" , Howard Chen , Ashwin Chaugule , Peter Hurley , "Wang Long" , Kevin Cernekee , "Rafael J. Wysocki" , Alan Cox , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "linux-serial@vger.kernel.org" , "linux-mediatek@lists.infradead.org" , Sascha Hauer Subject: Re: [PATCH v3 3/3] arm64: dts: Add mediatek MT8173 earlycon support Thread-Topic: [PATCH v3 3/3] arm64: dts: Add mediatek MT8173 earlycon support Thread-Index: AQHQgbj7rgWsdEEloUy4r7qfvSnKQA== Date: Wed, 29 Apr 2015 08:19:02 +0000 Message-ID: References: <1430228434-31779-1-git-send-email-eddie.huang@mediatek.com> <1430228434-31779-4-git-send-email-eddie.huang@mediatek.com> <20150429064454.GR6325@pengutronix.de> Accept-Language: en-US, en-IN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.12.197.3] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1316 Lines: 41 On Wednesday 29 April 2015 12:15 PM, Sascha Hauer wrote: > Hi Eddie, > > On Tue, Apr 28, 2015 at 09:40:34PM +0800, Eddie Huang wrote: >> Add earlycon support to mediatek MT8173 evaluation board dts. > This is not about earlycon support. It adds the stdout-path property > which is generally about console. Indeed, this is shorter way of specifying the default console by referring to uart device. > It only happens to used for earlycon, > but would be used as a regular console aswell if it wasn't broken for > some kernel revisisions. Really - I'm confused. When I last tried this for arc_uart (in 3.17 time frame), it would setup default console, but to use it for earlycon we needed bootargs=earlycon in chosen. However I had to revet that change since OF core still was fixing a few things in that area. See mainline 22524b02b17b901f28 ("Revert "ARC: [arcfpga] stdout-path now suffices for earlycon/console"") -Vineet > >> >> - chosen { }; >> + chosen { >> + linux,stdout-path = &uart0; >> + }; > Please use stdout-path, without the 'linux,'. > > Sascha > -- 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/