From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <532AC950.6070108@freescale.com> Date: Thu, 20 Mar 2014 18:56:16 +0800 From: Huang Shijie MIME-Version: 1.0 To: =?UTF-8?B?TG90aGFyIFdhw59tYW5u?= Subject: Re: [PATCH] mtd: gpmi: make blockmark swapping optional References: <1395235406-13449-1-git-send-email-y> <532AB1A2.9010702@freescale.com> <20140320102153.7106f915@ipc1.ka-ro> <532AB94D.1050406@freescale.com> <20140320110914.731db7cf@ipc1.ka-ro> In-Reply-To: <20140320110914.731db7cf@ipc1.ka-ro> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: quoted-printable Cc: Fabio Estevam , Mark Rutland , b47714@freescale.com, Russell King , Pawel Moll , Arnd Bergmann , Ian Campbell , Artem Bityutskiy , y@KARO-electronics.de, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Rob Herring , linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Rob Landley , Kumar Gala , Brian Norris , David Woodhouse , Sascha Hauer , Shawn Guo List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , =E4=BA=8E 2014=E5=B9=B403=E6=9C=8820=E6=97=A5 18:09, Lothar Wa=C3=9Fmann = =E5=86=99=E9=81=93: > This can be disabled by parameter in the FCB (at least according to > the i.MX6 reference Manual): from imx28's reference manual, there is not such bit in the FCB to=20 disable the swapping. But you are disabling the swapping in the imx28's DTS file,=20 isn't it? I think it is dangerous. > |DISBBM 172 4 If 0 ROM will swap BadBlockMarkerByte with > | metadata[0] after reading a page using BCH40. > | If the value set is 1 then ROM will not do > | swapping > > I will consult with our ROM colleague about this DISBBM bit. I am not sure if the ROM still do the swapping for the uboot when we set=20 DISBBM bit. thanks Huang Shijie From mboxrd@z Thu Jan 1 00:00:00 1970 From: b32955@freescale.com (Huang Shijie) Date: Thu, 20 Mar 2014 18:56:16 +0800 Subject: [PATCH] mtd: gpmi: make blockmark swapping optional In-Reply-To: <20140320110914.731db7cf@ipc1.ka-ro> References: <1395235406-13449-1-git-send-email-y> <532AB1A2.9010702@freescale.com> <20140320102153.7106f915@ipc1.ka-ro> <532AB94D.1050406@freescale.com> <20140320110914.731db7cf@ipc1.ka-ro> Message-ID: <532AC950.6070108@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org ? 2014?03?20? 18:09, Lothar Wa?mann ??: > This can be disabled by parameter in the FCB (at least according to > the i.MX6 reference Manual): from imx28's reference manual, there is not such bit in the FCB to disable the swapping. But you are disabling the swapping in the imx28's DTS file, isn't it? I think it is dangerous. > |DISBBM 172 4 If 0 ROM will swap BadBlockMarkerByte with > | metadata[0] after reading a page using BCH40. > | If the value set is 1 then ROM will not do > | swapping > > I will consult with our ROM colleague about this DISBBM bit. I am not sure if the ROM still do the swapping for the uboot when we set DISBBM bit. thanks Huang Shijie From mboxrd@z Thu Jan 1 00:00:00 1970 From: Huang Shijie Subject: Re: [PATCH] mtd: gpmi: make blockmark swapping optional Date: Thu, 20 Mar 2014 18:56:16 +0800 Message-ID: <532AC950.6070108@freescale.com> References: <1395235406-13449-1-git-send-email-y> <532AB1A2.9010702@freescale.com> <20140320102153.7106f915@ipc1.ka-ro> <532AB94D.1050406@freescale.com> <20140320110914.731db7cf@ipc1.ka-ro> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20140320110914.731db7cf@ipc1.ka-ro> Sender: linux-kernel-owner@vger.kernel.org To: =?UTF-8?B?TG90aGFyIFdhw59tYW5u?= Cc: y@KARO-electronics.de, Arnd Bergmann , Artem Bityutskiy , Brian Norris , David Woodhouse , Fabio Estevam , Ian Campbell , Kumar Gala , Mark Rutland , Pawel Moll , Rob Herring , Rob Landley , Russell King , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, b47714@freescale.com List-Id: devicetree@vger.kernel.org =E4=BA=8E 2014=E5=B9=B403=E6=9C=8820=E6=97=A5 18:09, Lothar Wa=C3=9Fman= n =E5=86=99=E9=81=93: > This can be disabled by parameter in the FCB (at least according to > the i.MX6 reference Manual): from imx28's reference manual, there is not such bit in the FCB to=20 disable the swapping. But you are disabling the swapping in the imx28's DTS file,=20 isn't it? I think it is dangerous. > |DISBBM 172 4 If 0 ROM will swap BadBlockMarkerByte with > | metadata[0] after reading a page using BCH40. > | If the value set is 1 then ROM will not do > | swapping > > I will consult with our ROM colleague about this DISBBM bit. I am not sure if the ROM still do the swapping for the uboot when we se= t=20 DISBBM bit. thanks Huang Shijie From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757483AbaCTKzT (ORCPT ); Thu, 20 Mar 2014 06:55:19 -0400 Received: from ch1ehsobe002.messaging.microsoft.com ([216.32.181.182]:50024 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756659AbaCTKzR convert rfc822-to-8bit (ORCPT ); Thu, 20 Mar 2014 06:55:17 -0400 X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPV:NLI;H:mail.freescale.net;RD:none;EFVD:NLI X-SpamScore: 2 X-BigFish: VS2(zzc89bh1432Izz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah1fc6h1082kzzz2dh2a8h839h93fhd25he5bhf0ah1288h12a5h12a9h12bdh1354h137ah13b6h1441h1504h1537h153bh162dh1631h1758h1765h18e1h190ch1946h19c3h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1f5fh1fe8h1ff5h209eh22d0h2336h2438h2461h2487h24ach24d7h2516h2545h255eh25cch25f6h2605h2668h1155h) Message-ID: <532AC950.6070108@freescale.com> Date: Thu, 20 Mar 2014 18:56:16 +0800 From: Huang Shijie User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 MIME-Version: 1.0 To: =?UTF-8?B?TG90aGFyIFdhw59tYW5u?= CC: , Arnd Bergmann , Artem Bityutskiy , Brian Norris , David Woodhouse , Fabio Estevam , Ian Campbell , Kumar Gala , Mark Rutland , Pawel Moll , Rob Herring , Rob Landley , Russell King , Sascha Hauer , Shawn Guo , , , , , , Subject: Re: [PATCH] mtd: gpmi: make blockmark swapping optional References: <1395235406-13449-1-git-send-email-y> <532AB1A2.9010702@freescale.com> <20140320102153.7106f915@ipc1.ka-ro> <532AB94D.1050406@freescale.com> <20140320110914.731db7cf@ipc1.ka-ro> In-Reply-To: <20140320110914.731db7cf@ipc1.ka-ro> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8BIT X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%0$Dn%FREESCALE.MAIL.ONMICROSOFT.COM$RO%1$TLS%0$FQDN%$TlsDn% Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 于 2014年03月20日 18:09, Lothar Waßmann 写道: > This can be disabled by parameter in the FCB (at least according to > the i.MX6 reference Manual): from imx28's reference manual, there is not such bit in the FCB to disable the swapping. But you are disabling the swapping in the imx28's DTS file, isn't it? I think it is dangerous. > |DISBBM 172 4 If 0 ROM will swap BadBlockMarkerByte with > | metadata[0] after reading a page using BCH40. > | If the value set is 1 then ROM will not do > | swapping > > I will consult with our ROM colleague about this DISBBM bit. I am not sure if the ROM still do the swapping for the uboot when we set DISBBM bit. thanks Huang Shijie