From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934715AbbCDHAH (ORCPT ); Wed, 4 Mar 2015 02:00:07 -0500 Received: from mailout2.samsung.com ([203.254.224.25]:49153 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933284AbbCDG76 (ORCPT ); Wed, 4 Mar 2015 01:59:58 -0500 X-AuditID: cbfee68e-f79b46d000002b74-46-54f6ad6c449b Message-id: <54F6AD6B.70007@samsung.com> Date: Wed, 04 Mar 2015 15:59:55 +0900 From: Chanwoo Choi User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-version: 1.0 To: Arnd Bergmann Cc: Chanwoo Choi , linux-arm-kernel , Mark Rutland , devicetree , linux-samsung-soc , Marc Zyngier , "catalin.marinas@arm.com" , Olof Johansson , "will.deacon@arm.com" , linux-kernel , "jh80.chung@samsung.com" , Seung-Woo Kim , Kukjin Kim , Abhilash Kesavan , "chanho61.park@samsung.com" , "inki.dae@samsung.com" , ideal.song@samsung.com Subject: Re: [PATCH v4 2/8] arm64: dts: exynos: Add dts files for 64-bit Exynos5433 SoC References: <1424755011-15999-1-git-send-email-cw00.choi@samsung.com> <2707354.mhmQEHxoKV@wuerfel> <13467157.nyRCsNWIp6@wuerfel> In-reply-to: <13467157.nyRCsNWIp6@wuerfel> Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrKIsWRmVeSWpSXmKPExsWyRsSkSDdn7bcQg4sHxSwer1nMZPF30jF2 i/fLehgtLu/Xtnh2VNti/pFzrBa7/t5ntJh0fwKLxY1fbawW/Y9fM1tsenyN1eLyrjlsFjPO 7wPqvPOPzWLp9YtMFqeufwaKTX7JZvHy4wkWByGPNfPWMHr8/jWJ0WPnrLvsHptWdbJ5bF5S 73HlRBOrR9+WVYwenzfJBXBEcdmkpOZklqUW6dslcGVsaQwr+MBZce7zE5YGxqPsXYycHBIC JhLbG+9D2WISF+6tZwOxhQSWMkocn14JU9N/dTMLRHwRo8T/iaFdjFxA9mtGic9zWxlBErwC GhLH+pqZQWwWAVWJa6+mgNlsAloS+1/cABsqKhAmsXL6FRaIekGJH5PvgdkiAooSU188A6tn FvjCKjF9gwiILSwQKfHwZzMbxLLTjBJzLrSAFXECDf328hYrRIOOxP7WaWwQtrzE5jVvmUEa JASWckhce3iYHeIiAYlvkw8BbeMASshKbDrADPGZpMTBFTdYJjCKzUJy0ywkY2chGbuAkXkV o2hqQXJBcVJ6kZFecWJucWleul5yfu4mRmDsn/73rG8H480D1ocYBTgYlXh4M6K/hQixJpYV V+YeYjQFumIis5Rocj4wweSVxBsamxlZmJqYGhuZW5opifMmSP0MFhJITyxJzU5NLUgtii8q zUktPsTIxMEp1cAYEzUzMPZ6yzmWht5Hv7i1F3oriNle+SKtuM2NcVlWtLGD9NT/IXHy6x7+ +y9p/6p+wzUhqf86euzmJ3vtI4yEtxhn3J6SIiHfYWMg4avbtHh+z9yUTbu1pP3qnn0xs+L1 j+A5UqbfXHUqyNi7+Uwj05pKVTWbzqvFn3gsV2sKOh9IyHy2QYmlOCPRUIu5qDgRAAiI/Zf4 AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrAKsWRmVeSWpSXmKPExsVy+t9jAd2ctd9CDK728Fo8XrOYyeLvpGPs Fu+X9TBaXN6vbfHsqLbF/CPnWC12/b3PaDHp/gQWixu/2lgt+h+/ZrbY9Pgaq8XlXXPYLGac 3wfUeecfm8XS6xeZLE5d/wwUm/ySzeLlxxMsDkIea+atYfT4/WsSo8fOWXfZPTat6mTz2Lyk 3uPKiSZWj74tqxg9Pm+SC+CIamC0yUhNTEktUkjNS85PycxLt1XyDo53jjc1MzDUNbS0MFdS yEvMTbVVcvEJ0HXLzAF6RUmhLDGnFCgUkFhcrKRvh2lCaIibrgVMY4Sub0gQXI+RARpIWMOY saUxrOADZ8W5z09YGhiPsncxcnJICJhI9F/dzAJhi0lcuLeeDcQWEljEKPF/YmgXIxeQ/ZpR 4vPcVkaQBK+AhsSxvmZmEJtFQFXi2qspYDabgJbE/hc3wJpFBcIkVk6/wgJRLyjxY/I9MFtE QFFi6otnYPXMAl9YJaZvEAGxhQUiJR7+bGaDWHaaUWLOhRawIk6god9e3mKFaNCR2N86jQ3C lpfYvOYt8wRGgVlIdsxCUjYLSdkCRuZVjKKpBckFxUnpuUZ6xYm5xaV56XrJ+bmbGMGp5Zn0 DsZVDRaHGAU4GJV4eA/EfgsRYk0sK67MPcQowcGsJMK7ZiJQiDclsbIqtSg/vqg0J7X4EKMp MAgmMkuJJucD015eSbyhsYmZkaWRuaGFkbG5kjivkn1biJBAemJJanZqakFqEUwfEwenVAPj FLXnyVFuf1pEvWdV7ZHp9FnI7/PeYJnirW6FUy/Oif6QfesetW1+btjeozmCKaavnCMs2BOs 5+RJ2V/SXFv0S2yzjJsQ96KvBuU8rexuU94szNnj7dDB61z8SUL93Z7NQfctp4mphpy50OHo dFW3mGNS/NpXq+RjTyYdSV9xfg3rx+RJwilKLMUZiYZazEXFiQC5oNAeQwMAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/02/2015 06:22 AM, Arnd Bergmann wrote: > On Saturday 28 February 2015 09:47:01 Chanwoo Choi wrote: >> "earlycon=exynos4210,0x14C20000" is correct bootparam. You can check >> it on Documentation/kernel-parameters.txt as following. >> >> exynos4210, >> Use early console provided by serial driver available >> on Samsung SoCs, requires selecting proper type and >> a correct base address of the selected UART port. The >> serial port must already be setup and configured. >> Options are not yet supported. >> >> > > But it's crazy to do this when you have a DT. Please fix the existing > devicetree files that use this to just list 'earlycon'. > > The syntax above only makes sense for classic board files that we > do not support for exynos any more. Following earlycon patch for exynos soc was merged in Linux 4.0-rc1. - commit-id: b94ba0328d3b36ff95f5074c0e9b44f90dc56bb5 (serial: samsung: Add support for early console) Almost Exynos SoC use the same UART IP of Exynos4210. If you mean that "earlycon=exynos4210" naming will be changed to "earlycon=exynos", we have to modify the drivers/tty/serial/samsung.c. Thanks, Chanwoo Choi