From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Madhusudhan" Subject: RE: [PATCH] Disable the non working eMMC on Zoom2/3 Date: Wed, 5 May 2010 20:35:51 -0500 Message-ID: <00a501caecbc$761ded40$544ff780@am.dhcp.ti.com> References: <2A3DCF3DA181AD40BDE86A3150B27B6B030D32D372@dbde02.ent.ti.com> <4BB51740.2060802@ti.com> <009a01cad1ee$e3bbae70$544ff780@am.dhcp.ti.com> <20100407114938.GF7153@atomide.com> <003801cad73e$86841df0$544ff780@am.dhcp.ti.com> <20100427182111.GE7225@atomide.com> <20100428192322.GG7225@atomide.com> <006801cae709$e136fe40$544ff780@am.dhcp.ti.com> <20100428194553.GH7225@atomide.com> <006f01cae886$38da6920$544ff780@am.dhcp.ti.com> <20100505182727.GA29604@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:52216 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752785Ab0EFBfz (ORCPT ); Wed, 5 May 2010 21:35:55 -0400 In-Reply-To: <20100505182727.GA29604@atomide.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: 'Tony Lindgren' Cc: 'Nishanth Menon' , "'Ghorai, Sukumar'" , linux-omap@vger.kernel.org, linux-mmc@vger.kernel.org > -----Original Message----- > From: Tony Lindgren [mailto:tony@atomide.com] > Sent: Wednesday, May 05, 2010 1:27 PM > To: Madhusudhan > Cc: 'Nishanth Menon'; 'Ghorai, Sukumar'; linux-omap@vger.kernel.org; > linux-mmc@vger.kernel.org > Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3 > > * Madhusudhan [100430 09:52]: > > > > > > > > > > > > > > > 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. > > > > > > > > > Sorry, I did not get a complete picture. Your earlier email said > that > > > with > > > > Linus tree eMMC on your Zoom3 is working. Is that correct? > > > > > > Nope, now the microSD is working, eMMC is not working. > > > > > > > IMHO, an omap level fix can not solve the problem with eMMC because > as I > > > can > > > > see from the log you provided above that a 16G device is detected as > 1G. > > > > This is certainly due to the issue I mentioned earlier. > > > > > > OK > > > > This means that some production boards still have this issue with eMMC. > So > > my patch disables the support for MMC2 on zoom boards. Would you > consider > > that? > > But is it also broken on zoom2? > Yes. > And what about this "Simulate multi mmc card as one big" patch? > Did not get you, what patch are you referring to? Regards, Madhu > Regards, > > Tony