Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752041AbZG1Ax0 (ORCPT ); Mon, 27 Jul 2009 20:53:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751112AbZG1Ax0 (ORCPT ); Mon, 27 Jul 2009 20:53:26 -0400 Received: from usul.saidi.cx ([204.11.33.34]:40671 "EHLO usul.overt.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750920AbZG1AxY (ORCPT ); Mon, 27 Jul 2009 20:53:24 -0400 Date: Mon, 27 Jul 2009 17:52:59 -0700 From: Philip Langdale To: Matt Fleming Cc: David Vrabel , Andrew Morton , ohad@bencohen.org, ian@mnementh.co.uk, pierre@ossman.eu, linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, nico@cam.org, nicolas.ferre@rfo.atmel.com, hskinnemoen@atmel.com, tony@atomide.com, david-b@pacbell.net, manuel.lauss@gmail.com, mirq-l@jasper.es Subject: Re: New MMC maintainer needed Message-ID: <20090727175259.12014aa2@fido2.homeip.net> In-Reply-To: <20090727214001.GK12665@console-pimps.org> References: <20090714153601.6dfe70ff@mjolnir.ossman.eu> <20090722151744.fffd7bf5.akpm@linux-foundation.org> <4A67A9E8.5080002@mnementh.co.uk> <20090723055447.GA12211@console-pimps.org> <20090722232259.d0ff3495.akpm@linux-foundation.org> <20090724152944.51402e87.akpm@linux-foundation.org> <20090726230630.7598fbe4@fido2.homeip.net> <4A6D990B.9000005@csr.com> <20090727214001.GK12665@console-pimps.org> X-Mailer: Claws Mail 3.7.1 (GTK+ 2.16.4; i486-slackware-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SA-Do-Not-RunX1: Yes Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1261 Lines: 31 On Mon, 27 Jul 2009 22:40:01 +0100 Matt Fleming wrote: > On Mon, Jul 27, 2009 at 01:09:47PM +0100, David Vrabel wrote: > > Philip Langdale wrote: > > > > > > Both the (Simplified) SD and SDIO specifications do not formally > > > define the 'low voltage' range in the way the MMC spec does. ie: > > > You won't find anything in the SD specs that even tell you what > > > the range is - it just says that it exists. > > > > Standard SD/SDIO cards only support 2.7-3.6V. > > > > 1.8V operation is added in SD physical spec 3.00 and is part of any > > of the UHS-1 modes (SDR12-SDR104 and DDR50). It has a different > > timings and requires a different (3.00 compliant) host controller. > > Is the 3.00 spec publicly available? > Indeed! If the 1.8V operations have conformance requirements beyond those of MMCplus/MMCmobile, then we can't just remove the current test as proposed. I've been checking the sdcard.org site periodically for new specs and haven't seen anything yet. --phil -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/