From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5D37C433E1 for ; Mon, 8 Jun 2020 14:57:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF81A2074B for ; Mon, 8 Jun 2020 14:57:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="2CXriWfr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730108AbgFHO5m (ORCPT ); Mon, 8 Jun 2020 10:57:42 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:39612 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725975AbgFHO5m (ORCPT ); Mon, 8 Jun 2020 10:57:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=pxY+k1EDOGmASjIgfSa3YXyUmL2DqkU4/aox1YMvk6I=; b=2CXriWfrKP1Fl1stlshdbKaz2m OfGHmEc7e9keimnc6B1dDuLMA6W2Q3LLtqe0b748WjJw0/OkXJdNpHwFSBUa71VtgqlTzrFh2/AU6 KcM4j01FXNpS3I0NCGVqADFVUqXE49yVSqMa/bIYOu9G5jtJ3MnjK8wN4LJwtXs/ZvgM=; Received: from andrew by vps0.lunn.ch with local (Exim 4.93) (envelope-from ) id 1jiJDV-004PYI-4V; Mon, 08 Jun 2020 16:57:37 +0200 Date: Mon, 8 Jun 2020 16:57:37 +0200 From: Andrew Lunn To: Sascha Hauer , Russell King Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de, linux-kernel@vger.kernel.org, Thomas Petazzoni , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode Message-ID: <20200608145737.GG1006885@lunn.ch> References: <20200608074716.9975-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200608074716.9975-1-s.hauer@pengutronix.de> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 08, 2020 at 09:47:16AM +0200, Sascha Hauer wrote: > The Marvell MVNETA Ethernet controller supports a 2.5 Gbps SGMII mode > called DRSGMII. > > This patch adds a corresponding phy-mode string 'drsgmii' and parses it > from DT. The MVNETA then configures the SERDES protocol value > accordingly. > > It was successfully tested on a MV78460 connected to a FPGA. Hi Sascha Is this really overclocked SGMII, or 2500BaseX? How does it differ from 2500BaseX, which mvneta already supports? Also, does comphy need extensions to support this? Andrew