From patchwork Tue May 15 08:18:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marco Felsch X-Patchwork-Id: 913468 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40lVpL2tYcz9s0q for ; Tue, 15 May 2018 18:19:06 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752387AbeEOITC (ORCPT ); Tue, 15 May 2018 04:19:02 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:54597 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752227AbeEOITA (ORCPT ); Tue, 15 May 2018 04:19:00 -0400 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1fIVAe-0003B8-VB; Tue, 15 May 2018 10:18:56 +0200 Received: from mfe by dude.hi.pengutronix.de with local (Exim 4.91) (envelope-from ) id 1fIVAe-00067y-7t; Tue, 15 May 2018 10:18:56 +0200 From: Marco Felsch To: robh+dt@kernel.org, mark.rutland@arm.com, andrew@lunn.ch, f.fainelli@gmail.com Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de, niebelm@tqsc.de Subject: [RESEND PATCH v2 0/1] net: phy: micrel: add 125MHz reference clock workaround Date: Tue, 15 May 2018 10:18:55 +0200 Message-Id: <20180515081856.23322-1-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.17.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mfe@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch adds the workaround for the errata#2. The KSZ9031 phy 125MHz reference clock jitter is to high if the phy is configured as slave. This will cause errors if a application uses the clock as MAC reference clock. The workaround is to configure the phy as master. v2: - add more code and dt-binding comments - delete unnecessary local variables - add error handling v1: - initial commit Markus Niebel (1): net: phy: micrel: add 125MHz reference clock workaround .../bindings/net/micrel-ksz90x1.txt | 7 ++++ drivers/net/phy/micrel.c | 32 +++++++++++++++++++ 2 files changed, 39 insertions(+)