From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: Re: Anyone using an ISP1505? Date: Mon, 21 Dec 2009 22:42:12 +0200 Message-ID: <20091221204212.GA18907@nokia.com> References: <4B2A7FFB.6090909@billgatliff.com> <5A47E75E594F054BAF48C5E4FC4B92AB031DC20A68@dbde02.ent.ti.com> <4B2BD3B6.20407@billgatliff.com> <4B2FAB22.90000@billgatliff.com> <4B2FD0EB.7030005@billgatliff.com> <5A47E75E594F054BAF48C5E4FC4B92AB031DC20A80@dbde02.ent.ti.com> Reply-To: felipe.balbi@nokia.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Received: from smtp.nokia.com ([192.100.122.230]:57010 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757118AbZLUUqQ (ORCPT ); Mon, 21 Dec 2009 15:46:16 -0500 Content-Disposition: inline In-Reply-To: <5A47E75E594F054BAF48C5E4FC4B92AB031DC20A80@dbde02.ent.ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "ext Gadiyar, Anand" Cc: Bill Gatliff , "Pandita, Vikram" , "linux-omap@vger.kernel.org" , "beagleboard@googlegroups.com" Hi, On Mon, Dec 21, 2009 at 09:12:15PM +0100, ext Gadiyar, Anand wrote: >Bill Gatliff wrote: >> >> Pandita, Vikram wrote: >> > Bill >> > There is a basic confusion whether you are using MUSB OTG core of omap >> > Or are you using EHCI core of omap. >> > >> > Both can be connected to a ULPI PHY and so you need to be very precise? >> > >> >> I'm on the CUS package, and the D0 pin of the PHY is tied to pad T24 of >> the OMAP3530. That's the ULPI D0 for EHCI, right? >> > >No confusion for me. I took the liberty of looking this up, and for >this package, T24 is D0 for MUSB, not EHCI. > > >> If the pad can be multiplexed between both MUSB and EHCI, how can I tell >> which one is connected there now? > > >No pad in the OMAP3 is multiplexed between both MUSB and EHCI; HSUSB0 >is MUSB (this makes sense, since most users of the OMAP3 would like >to use the OMAP3 as a USB peripheral, and there is only one peripheral >controller, so the MUSB lines are usually not switches to other roles. > > >EHCI on the other hand is on HSUSB1 to HSUSB3 (there are 3 ports). > > >> For that matter, where in the mountains of OMAP3xxx documentation >> does it say which controller the UH0 pins are tied to? I haven't >> found it yet... > >Well, in the USB chapter of the OMAP3 TRM, the very first figure >(24.1 - USB modules overview) shows this clearly. Port0 is MUSB, >and Ports 1-3 are HSUSB Host. Are you just missing to call usb_nop_xceiv_register() ?? can you attach your .config file to the mail ?? -- balbi