From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3 Date: Wed, 28 Apr 2010 12:23:22 -0700 Message-ID: <20100428192322.GG7225@atomide.com> References: <37310.192.168.10.89.1270081542.squirrel@dbdmail.itg.ti.com> <2A3DCF3DA181AD40BDE86A3150B27B6B030D32CEE8@dbde02.ent.ti.com> <008601cad1bd$6d0022b0$544ff780@am.dhcp.ti.com> <2A3DCF3DA181AD40BDE86A3150B27B6B030D32D372@dbde02.ent.ti.com> <4BB51740.2060802@ti.com> <009a01cad1ee$e3bbae70$544ff780@am.dhcp.ti.com> <20100407114938.GF7153@atomide.com> <003801cad73e$86841df0$544ff780@am.dhcp.ti.com> <20100427182111.GE7225@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-01-ewr.mailhop.org ([204.13.248.71]:50081 "EHLO mho-01-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755009Ab0D1TXV (ORCPT ); Wed, 28 Apr 2010 15:23:21 -0400 Content-Disposition: inline In-Reply-To: <20100427182111.GE7225@atomide.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Madhusudhan Cc: 'Nishanth Menon' , "'Ghorai, Sukumar'" , linux-omap@vger.kernel.org, linux-mmc@vger.kernel.org * Tony Lindgren [100427 11:16]: > * Madhusudhan [100408 10:07]: > > > > > > > > Tony, do you care to just look up the serial number of your board? > > > > > > Sorry for the delay in replying, I've been travelling for a few weeks > > > and been in meetings quite a bit. Anyways, it's a 1013037 REV A board, > > > which seems to be production in the table above. > > > > > > > That means we can not assume all production units have a working eMMC. > > Would you mind sharing your bootup log? When this device is detected > > something like below is a clear issue. > > > > mmcblk1: mmc1:0001 STM16G 1.00 GiB > > mmcblk1: p1 p2 For the eMMC I seem to have that: [ 0.978363] mmc1: new high speed MMC card at address 0001 [ 0.984344] mmcblk1: mmc1:0001 STM16G 1.00 GiB [ 0.989105] mmcblk1: unknown partition table ... zoom:~# fdisk -l /dev/mmcblk1 [ 120.306396] mmcblk1: retrying using single block read [ 120.503692] mmcblk1: retrying using single block read [ 120.683593] mmcblk1: error -110 transferring data, sector 2097144, nr 8, card status 0x900 [ 120.691894] end_request: I/O error, dev mmcblk1, sector 2097144 [ 120.872680] mmcblk1: error -110 transferring data, sector 2097145, nr 7, card status 0x900 ... > Hmm, finally got around looking into this again. Looks like the mmc > is now working on my zoom3 with the current Linus' tree at commit > 7c6bd2010fced38444c9fd658f4c6ce61bd185bf. So I guess something that > we had in omap-fixes fixed this. Or maybe some fix for drivers/mmc? > > This is with the debug_ll patch applied: > > https://patchwork.kernel.org/patch/87532/ For the microSD card, turns out the card I used was flakey. So that should explain some of the problems. I'm almost certain I tried with two different cards earlier though. In any case, let's assume the problem is only the eMMC. Regards, Tony