From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752180AbdAaN0I (ORCPT ); Tue, 31 Jan 2017 08:26:08 -0500 Received: from smtprelay2.synopsys.com ([198.182.60.111]:52500 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751882AbdAaN0A (ORCPT ); Tue, 31 Jan 2017 08:26:00 -0500 From: Alexey Brodkin To: "peppe.cavallaro@st.com" CC: "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-snps-arc@lists.infradead.org" Subject: Re: stmmac: GMAC_RGSMIIIS reports bogus values Thread-Topic: stmmac: GMAC_RGSMIIIS reports bogus values Thread-Index: AQHSNe3WHCWZ99cl6060z9b7QcHLU6DYIbIAgHHWYICAApoBAIAGQY8AgAA6TwA= Date: Tue, 31 Jan 2017 13:24:00 +0000 Message-ID: <1485869040.2706.15.camel@synopsys.com> References: <1478189833.4072.65.camel@synopsys.com> <1485369563.7117.81.camel@synopsys.com> <1485512586.2693.35.camel@synopsys.com> <28d0ab2c-eb68-a520-e59a-83b15700fe44@st.com> In-Reply-To: <28d0ab2c-eb68-a520-e59a-83b15700fe44@st.com> Accept-Language: en-US, ru-RU Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.121.8.77] Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id v0VDop83005528 Hi Giuseppe, On Tue, 2017-01-31 at 10:55 +0100, Giuseppe CAVALLARO wrote: > On 1/27/2017 11:23 AM, Alexey Brodkin wrote: > > > > That's why my initial proposal was to ignore whatever we read from this register > > if we have MDIO bus instantiated already. > > sorry for my late reply, I agree with this approach, according to the > HW and platform configuration the driver has to understand and then > work to use either SMA or PCS module. I already submitted another solution which IMHO is much cleaner and appropriate, see David has it already in master tree here: http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=0a764db103376cf69d04449b10688f3516cc0b88 -Alexey