Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752156AbbKPTnb (ORCPT ); Mon, 16 Nov 2015 14:43:31 -0500 Received: from shards.monkeyblade.net ([149.20.54.216]:40301 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751216AbbKPTn3 (ORCPT ); Mon, 16 Nov 2015 14:43:29 -0500 Date: Mon, 16 Nov 2015 14:43:27 -0500 (EST) Message-Id: <20151116.144327.1187971163162596209.davem@davemloft.net> To: p.fedin@samsung.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, steve.glendinning@shawell.net Subject: Re: [PATCH RESEND] net: smsc911x: Reset PHY during initialization From: David Miller In-Reply-To: <000401d11ddf$18dffce0$4a9ff6a0$@samsung.com> References: <000401d11ddf$18dffce0$4a9ff6a0$@samsung.com> X-Mailer: Mew version 6.7 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 16 Nov 2015 11:43:28 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 814 Lines: 21 From: Pavel Fedin Date: Fri, 13 Nov 2015 09:46:59 +0300 > On certain hardware after software reboot the chip may get stuck and fail > to reinitialize during reset. This can be fixed by ensuring that PHY is > reset too. > > Old PHY resetting method required operational MDIO interface, therefore > the chip should have been already set up. In order to be able to function > during probe, it is changed to use PMT_CTRL register. > > The problem could be observed on SMDK5410 board. > > Signed-off-by: Pavel Fedin Applied. -- 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/