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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20E20C4332F for ; Wed, 9 Nov 2022 23:02:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231966AbiKIXCj (ORCPT ); Wed, 9 Nov 2022 18:02:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232235AbiKIXCP (ORCPT ); Wed, 9 Nov 2022 18:02:15 -0500 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9786D11C36; Wed, 9 Nov 2022 15:01:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=nWu9npcTwPxeit8kU4IBt2JR98yh/MyteHNryZAJhYo=; b=rE6M68O8OTU7+ozIF8d5aq9hWA K/KRgRk9QOWHN/M5HWRuCB3yUb4nRHex8v44vsShFPQ84E7W58zOLjwaFw7PABe99LCxZCeLhDukQ dtAb46AkRc/F1RK/oo3F0Z/b48TSK92Cbk22+/4BYCYjMmvSdkFx092dB+4VLdOiEsEc=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1osu3Z-001xaM-DX; Thu, 10 Nov 2022 00:00:29 +0100 Date: Thu, 10 Nov 2022 00:00:29 +0100 From: Andrew Lunn To: Jan Petrous Cc: Chester Lin , Andreas =?iso-8859-1?Q?F=E4rber?= , Rob Herring , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Krzysztof Kozlowski , "netdev@vger.kernel.org" , dl-S32 , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Matthias Brugger Subject: Re: [EXT] Re: [PATCH 2/5] dt-bindings: net: add schema for NXP S32CC dwmac glue driver Message-ID: References: <20221031101052.14956-1-clin@suse.com> <20221031101052.14956-3-clin@suse.com> <20221102155515.GA3959603-robh@kernel.org> <2a7ebef4-77cc-1c26-ec6d-86db5ee5a94b@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org > > Here I just focus on GMAC since there are other LAN interfaces that S32 > > family > > uses [e.g. PFE]. According to the public GMACSUBSYS ref manual rev2[1] > > provided > > on NXP website, theoretically GMAC can run SGMII in 1000Mbps and > > 2500Mbps so I > > assume that supporting 1000BASE-X could be achievable. I'm not sure if any > > S32 > > board variant might have SFP ports but RJ-45 [1000BASE-T] should be the > > major > > type used on S32G-EVB and S32G-RDB2. > > > > @NXP, please feel free to correct me if anything wrong. > > > > NXP eval boards (EVB or RDB) have also 2.5G PHYs, so together with SerDes > driver we support 100M/1G/2.5G on such copper PHYs. Hi Jan Does the SERDES clock need to change when going between 1000BaseX and 2500BaseX? If so, it sounds like Linux not having control of that clock is going to limit what can be supported. Andrew