From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH 0/2] Fix omap serial early crash during hwmod _setup() Date: Fri, 12 Jul 2013 01:03:48 -0700 Message-ID: <20130712080348.GE7656@atomide.com> References: <1373539986-27272-1-git-send-email-rnayak@ti.com> <20130712072244.GB7656@atomide.com> <51DFB139.8060408@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-02-ewr.mailhop.org ([204.13.248.72]:39961 "EHLO mho-02-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757236Ab3GLIDw (ORCPT ); Fri, 12 Jul 2013 04:03:52 -0400 Content-Disposition: inline In-Reply-To: <51DFB139.8060408@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Rajendra Nayak Cc: khilman@linaro.org, linux-omap@vger.kernel.org, vaibhav.bedia@ti.com, linux-arm-kernel@lists.infradead.org, mpfj-list@newflow.co.uk, sourav.poddar@ti.com, paul@pwsan.com, balbi@ti.com * Rajendra Nayak [130712 00:39]: > On Friday 12 July 2013 12:52 PM, Tony Lindgren wrote: > > * Rajendra Nayak [130711 03:59]: > >> This series should fix the issue with the early serial crash seen > >> during hwmod _setup() as reported by [1] > >> > >> The issue was reported on a am33xx device and was not seen on omap4 > >> or omap5 devices as the hwmod data for both omap4 and omap5 had > >> statically defined HWMOD_INIT_NO_IDLE and HWMOD_INIT_NO_RESET for > >> uart3 which happens to be the debug console used on omap4 panda and > >> omap5 uevm boards. > > > > The serial driver should be capable of setting this on it's own > > as it sets up the console. > > These flags are used to avoid an early reset that hwmod does to all devices > on the SoC and is done much before serial driver is initialized. OK so that's only needed for earlycon then it seems. Regards, Tony