From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3 Date: Thu, 1 Apr 2010 16:59:28 -0500 Message-ID: <4BB51740.2060802@ti.com> References: <37310.192.168.10.89.1270081542.squirrel@dbdmail.itg.ti.com> <2A3DCF3DA181AD40BDE86A3150B27B6B030D32CEE8@dbde02.ent.ti.com> <008601cad1bd$6d0022b0$544ff780@am.dhcp.ti.com> <2A3DCF3DA181AD40BDE86A3150B27B6B030D32D372@dbde02.ent.ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:59823 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756767Ab0DAV7e (ORCPT ); Thu, 1 Apr 2010 17:59:34 -0400 In-Reply-To: <2A3DCF3DA181AD40BDE86A3150B27B6B030D32D372@dbde02.ent.ti.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: "Ghorai, Sukumar" Cc: "Chikkature Rajashekar, Madhusudhan" , "tony@atomide.com" , "linux-omap@vger.kernel.org" , "linux-mmc@vger.kernel.org" Ghorai, Sukumar had written, on 04/01/2010 01:34 PM, the following: >>>> -----Original Message----- >>>> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap- >>>> owner@vger.kernel.org] On Behalf Of Chikkature Rajashekar, Madhusudhan >>>> Sent: 2010-04-01 05:56 >>>> To: tony@atomide.com >>>> Cc: linux-omap@vger.kernel.org; linux-mmc@vger.kernel.org >>>> Subject: [PATCH] Disable the non working eMMC on Zoom2/3 >>>> >>>> From: Madhusudhan Chikkature >>>> Date: Wed, 31 Mar 2010 12:29:19 -0400 >>>> Subject: [PATCH] Zoom2/3: Disable MMC >>>> >>>> The eMMC on Zoom2/3 seems to have a lower EXT_CSD Rev.This causes the >>>> writes to fail since the card size is not detected correctly by the >> MMC >>>> core. Disable the MMC2 support for Zoom2/3. >>> >>> [Ghorai] Please let us know the EXT_CSD Rev you see in zoom3 and the >> exact >>> problem. Because we never face any issue for eMMC in ZOOM3. Because we >>> have the same eMMC device in 3630-SDP and could have the same problem. >>> >> On Zoom3 the EXT_CSD Rev reported by eMMC is zero. See the log attached. >> >> Hence the failures which are reported by people on the list. I had already >> bought this problem up on the list previously and was discussed, right? >> From the log you can also see that a 16GB device is detected as a 1GB. > > [Ghorai] I feel it's an issue with eMMC in pilot-board. And production-board is working fine. And I feel outside TI people having production board only. And 16GB eMMC device is a very good size to work with different things. Otherwise we are talking about MMC#2 boot, eMMC boot, 16GB eMMC device in zoom,.. all these information in different page/ link looks very misleading information, if really having such problem. > I the mean time I will check this in Pilot board too and think you checked in pilot board only. > Ref [1] I believe tony has the brand new zoom board - I think your assumption here might be flawed.. -- Regards, Nishanth Menon Ref: [1] http://marc.info/?l=linux-omap&m=126938456103707&w=2