From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751577AbbBZImn (ORCPT ); Thu, 26 Feb 2015 03:42:43 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:43099 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751415AbbBZIml (ORCPT ); Thu, 26 Feb 2015 03:42:41 -0500 X-AuditID: cbfee68e-f79b46d000002b74-67-54eedc7eafd7 Message-id: <54EEDC7E.9010406@samsung.com> Date: Thu, 26 Feb 2015 17:42:38 +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@lists.infradead.org, mark.rutland@arm.com, jh80.chung@samsung.com, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, marc.zyngier@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, a.kesavan@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, kgene@kernel.org, olof@lixom.net, chanho61.park@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> <7412525.l6YnQcTxtg@wuerfel> <54EC5AB1.5090802@samsung.com> <6850624.bdB2Ab6zJx@wuerfel> <54EED6E1.4060908@samsung.com> In-reply-to: <54EED6E1.4060908@samsung.com> Content-type: text/plain; charset=UTF-8 Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrIIsWRmVeSWpSXmKPExsWyRsSkULfuzrsQgw8z1C0er1nMZPF30jF2 i/fLehgtLu/Xtrj+5Tmrxfwj51gtdv29z2gx6f4EFosbv9pYLfofv2a22PT4GqvF5V1z2Cxm nN8H1HrnH5vF0usXmSxOXf8MFJv8ks3i5ccTLA5CHmvmrWH0+P1rEqPHplWdbB6bl9R7XDnR xOrRt2UVo8fnTXIB7FFcNimpOZllqUX6dglcGWeOTGEs6OCt2Hi2m72B8SpnFyMnh4SAicSj e/dYIGwxiQv31rN1MXJxCAksZZQ4f3wFcxcjB1jR3tsCEPHpjBKH5vWzgzQICbxmlOhaIQli 8wpoSRz7txusnkVAVWL9fQ6QMBtQeP+LG2wgtqhAmMTK6VdYIMoFJX5MhtgrIqAoMfXFM2aQ +cwCh5kl+uf/ZgZJCAtESjz82cwGsesgo8S6v0YgNqeAtsSEg02MIDazgLrEpHmLmCFseYnN a96CDZIQWMkh8eZUI1iCRUBA4tvkQywQz8hKbDrADPGwpMTBFTdYJjCKzUJy0ywkY2chGbuA kXkVo2hqQXJBcVJ6kZFecWJucWleul5yfu4mRmDMn/73rG8H480D1ocYBTgYlXh4E7LfhQix JpYVV+YeYjQFumIis5Rocj4wseSVxBsamxlZmJqYGhuZW5opifMmSP0MFhJITyxJzU5NLUgt ii8qzUktPsTIxMEp1cA48+3UO8xm9q1cUl6vDtaE592y1ZNuYM6/4JQYGCiwc49z5hO+GJfH xw73HhOZlrJ3nbgH64J/v8//9a/499IksZbvyKcYr3Br17UqJ2tvvE2yrq+p5j65avIzs/+T ek4pzOyby3bVzVul2/jU999J1dpqTt6r7lrP+vG+8+ZE3XK12wI7f1sosRRnJBpqMRcVJwIA +1FOU/QCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNKsWRmVeSWpSXmKPExsVy+t9jQd26O+9CDM48lrV4vGYxk8XfScfY Ld4v62G0uLxf2+L6l+esFvOPnGO12PX3PqPFpPsTWCxu/Gpjteh//JrZYtPja6wWl3fNYbOY cX4fUOudf2wWS69fZLI4df0zUGzySzaLlx9PsDgIeayZt4bR4/evSYwem1Z1snlsXlLvceVE E6tH35ZVjB6fN8kFsEc1MNpkpCampBYppOYl56dk5qXbKnkHxzvHm5oZGOoaWlqYKynkJeam 2iq5+AToumXmAL2hpFCWmFMKFApILC5W0rfDNCE0xE3XAqYxQtc3JAiux8gADSSsYcw4c2QK Y0EHb8XGs93sDYxXObsYOTgkBEwk9t4W6GLkBDLFJC7cW8/WxcjFISQwnVHi0Lx+dpCEkMBr RomuFZIgNq+AlsSxf7uZQXpZBFQl1t/nAAmzAYX3v7jBBmKLCoRJrJx+hQWiXFDix+R7YLaI gKLE1BfPmEHmMwscZpbon/+bGSQhLBAp8fBnMxvEroOMEuv+GoHYnALaEhMONjGC2MwC6hKT 5i1ihrDlJTavecs8gVFgFpIds5CUzUJStoCReRWjaGpBckFxUnqukV5xYm5xaV66XnJ+7iZG cEJ5Jr2DcVWDxSFGAQ5GJR7ehOx3IUKsiWXFlbmHGCU4mJVEeC/dBArxpiRWVqUW5ccXleak Fh9iNAWGwERmKdHkfGCyyyuJNzQ2MTOyNDI3tDAyNlcS51WybwsREkhPLEnNTk0tSC2C6WPi 4JRqYKzOSo+pLGfyEunc/sqvs6zpyQapNff2dswptarffi4k5ezXM1OseS9N1Vkms32LklC5 t6trUNx6+bCGLRWVP5XOaCz1XFFjJ2na03hoeWXx37Pmq9b97r740Ya1RbBDJWc9q5mXJZ9e UKJ/c5OTzLqSDR5KSR0uzYordzQ0XPm+I94j9JqHEktxRqKhFnNRcSIAMyvpNj4DAAA= 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 Hi Arnd, On 02/26/2015 05:18 PM, Chanwoo Choi wrote: > On 02/24/2015 08:59 PM, Arnd Bergmann wrote: >> On Tuesday 24 February 2015 20:04:17 Chanwoo Choi wrote: >>> On 02/24/2015 06:48 PM, Arnd Bergmann wrote: >>>> On Tuesday 24 February 2015 17:52:01 Chanwoo Choi wrote: >>>>> >>>>> But, I have a question. >>>>> If we put the aliases into the board dts file instaed of SoC dtsi, >>>>> each board dts file may use the different alias name about same phandle. >>>> >>>> Yes, that is the idea. In particular with the uarts, the intention is >>>> that the numbering of the device nodes in /dev is the same that is >>>> printed on the board (if any), which may be different from the numbering >>>> internal to the SoC. >>> >>> I check the uart device with Exynos5433 SoC based on Linux 4.0-rc1 >>> If some board use the serial_0 and serial_3 as following in board dtsi, >>> >>> &serial_0 { --> UART 0 device >>> status = "okay"; >>> }; >>> >>> &serial_3 { --> UART 3 device >>> status = "okay"; >>> }; >>> >>> The serial core driver create the follwoing /dev/ttySACx device node >>> by using the number of alias. It maintain the same device number of internel to the SoC. >>> >>> root@localhost:~# ls /dev/ttySAC >>> ttySAC1 ttySAC3 >>> >> [snip] > > So, I change the kernel command line about ('console' bootparam) as following: > because tty framework must use the 'console' bootparam to print kernel log. I fix the my wrong expression. Some tty driver use the 'console' bootparam. [snip] Thanks, Chanwoo Choi