From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Raja, Govindraj" Subject: Re: [PATCH] omap3_beagle: Init only uart3 used for console Date: Tue, 6 Mar 2012 14:40:57 +0530 Message-ID: References: <1330945952-14714-1-git-send-email-govindraj.raja@ti.com> <87399mkecv.fsf@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from na3sys009aog103.obsmtp.com ([74.125.149.71]:43612 "EHLO na3sys009aog103.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751173Ab2CFJLS (ORCPT ); Tue, 6 Mar 2012 04:11:18 -0500 Received: by mail-tul01m020-f177.google.com with SMTP id ta2so8276712obb.22 for ; Tue, 06 Mar 2012 01:11:17 -0800 (PST) In-Reply-To: <87399mkecv.fsf@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Kevin Hilman Cc: linux-omap@vger.kernel.org, Peter Ujfalusi , Robert Nelson , linux-arm-kernel@lists.infradead.org, Tony Lindgren On Tue, Mar 6, 2012 at 1:30 AM, Kevin Hilman wrote: > "Govindraj.R" writes: > >> From: "Govindraj.R" >> >> On beagle some of uart mux lines are used for other >> purpose so init only uart3. > > OK, but you should also be clear that this patch is effectively > disabling all UARTS (except UART3) by defatul, which I'm not sure all > Beagle users will be happy about. > Okay, I have posted new version of the patch "[PATCH] omap3_beagle: init uart2 for beagle rev AX/BX only" which initialises uart1/3/4 on all beagle boards and uart2 init is done for only beagle rev ax/bx which doesn't seem to have external usb module. >> Uart2 rx line clashes with gpio_147 used for usb ehci >> phy reset. Initializing uart2 pad_mux lines can break >> ehci module on beagle xm. >> (gpio_147 is available on uart2_rx in mode4 reference >> mux34xx.c -> uart2_rx.gpio_147) > > As Koen mentioned, this conflict only exists on certain boards, so > you should be clear that this is just an example. > conflict exists all beagle rev's expect rev ax/bx. -- Thanks, Govindraj.R