From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Gadiyar, Anand" Subject: RE: [PATCH 7/9] OMAP: Devkit8000: Fix wrong usb port on Devkit8000 Date: Tue, 30 Mar 2010 11:59:14 +0530 Message-ID: <5A47E75E594F054BAF48C5E4FC4B92AB032231D221@dbde02.ent.ti.com> References: <1269435138-27192-1-git-send-email-weber@corscience.de> <1269435138-27192-8-git-send-email-weber@corscience.de> <20100324130001.GK29419@nokia.com> <20100329203432.GB31402@nokia.com> <5A47E75E594F054BAF48C5E4FC4B92AB032231D1BE@dbde02.ent.ti.com> <4BB1A531.10906@corscience.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: Received: from devils.ext.ti.com ([198.47.26.153]:43612 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755646Ab0C3G31 convert rfc822-to-8bit (ORCPT ); Tue, 30 Mar 2010 02:29:27 -0400 In-Reply-To: <4BB1A531.10906@corscience.de> Content-Language: en-US Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Thomas Weber Cc: "felipe.balbi@nokia.com" , "linux-omap@vger.kernel.org" , "tony@atomide.com" Thomas Weber wrote: > Hi, > I tried to find some users but they are in holiday for a longer time or > didn't respond. > > I will try to explain the problem why I disabled the usb-port2. > The devkit8000 has only one mini-usb-port and one usb-host port like the > beagleboard. The usb2-port on the devkit8000 has some gpios attached for > mmc and touchscreen. Thatswhy the mmc was not working, when the usb-ehci > was enabled on this port. > > The beagleboard has also only one usb-host exposed, but there is no > other thing connected to the not exposed usb-port. Yup, I've been bitten by this before on other boards. Marking the wrong port as an EHCI port will result in 12 pads being put in the wrong mux-mode straight away, due to the padconf settings we do in usb-ehci.c. With 12-pads, there's a very high chance that you lose other functionality. The patch has my ack. Is there a link to the schematics somewhere, so the next time we see something like this, we can just use those as reference? - Anand