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=-5.7 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 657C3C433DB for ; Mon, 22 Mar 2021 08:46:30 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DDB656196C for ; Mon, 22 Mar 2021 08:46:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DDB656196C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=nIOn89cSiFDFm8nVCt73FRtKkIEoVoV7r7cL3fL9jmc=; b=pIZW8dL58b9TWDqbckmMMtUkh 8a+6tC4DX4aK0Fa9G6ybdCi3kErRvRew3tnrEKoGRKIa/1motpbFJ8D4SEL8bi+ZuLEYbXD6M2VIK rS+kdXxFVjOTEeQc3bbV5/oAm6TNb03BKdcjy5ombqONMcbMLOIdY/KrLHNA6tsPYeMqaHL+rZfMh vhzEG/uVeQjXQaeHP/c+eZkyIJisNmd7OK9D9oY17jAFCO+XzvfFVDV4TU685fzSXRO8iodI6wZTZ Igqwe7c3cmUyKG5AwuNWD2wMJjEI1B34YZ+8Ns5S1Zo9L5VCL7q6h7dKhgXns/zxCk5iP7236DGgO WHa1NGQKQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOGAo-00BC8d-Ea; Mon, 22 Mar 2021 08:44:30 +0000 Received: from mail-ed1-x52f.google.com ([2a00:1450:4864:20::52f]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lOGAj-00BC8F-Bc; Mon, 22 Mar 2021 08:44:27 +0000 Received: by mail-ed1-x52f.google.com with SMTP id h13so18253812eds.5; Mon, 22 Mar 2021 01:44:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=1rnkMpGsCf/4BnBYAYXXRx86itQPydiaEV5BqDF9/qw=; b=PSp+DW8HY4S5LbW9uyOCmE/4pZe+0jMXvcLhKhdY5ccVq9Bjkhr1tm+fEbhH+iFiPm PpRvcUKmNAPztWu1lkTxTNT9einv/4U3b9wmVA5/lPvaRQVeKrUsm2DdvQZIDW1qgdax ZgCNQzHhoS55dWOIb+lqnq4cVzcGZrlRgjxzFhY6mWlp6UVcBiWFTDaNVR9Td2/vm3KU hnpWewO9lx2c9Uj+LvB8qJa7KzxAAXOs4tFO83cACUykDW0mcFM23T1aTeJQnzarSg24 VgAJpVN/rilBtJjVcJGiVAMzytegbyBRIjUTTCl4X5pt2E1aqIOhY+VQPQiJ83E8Owf3 I8AQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=1rnkMpGsCf/4BnBYAYXXRx86itQPydiaEV5BqDF9/qw=; b=miWcuV4fvbgOyrhRAlCzLgpoq5jLrFarN1CJAWS4XYFBFYnm+VH9KpRbb/+xWt3aol softLwRfD8TnsBYFALte62nODBuc/qnDRc8jQuJa9YLIKY3Cuxmh17oa/Yv8KpWD3bhF dUEZVieuKMT7yFIonFywpjTWtnPh36jixOrFPyTfs9m+A/hnVuiujLN+7EKMJ5jZHybz DoE2192N2SuQvYYA+GvdArP/KXh36B7FP/mx7ypGbPFl09XfF/X/DHsyWTnhRLfdG3BC UEgMpEMxCn8MZv3vCms1vz4SAqkxBSfc1jbTGcvR5blnDzMWXpBjXpdZODAi0yZRzydU EY4Q== X-Gm-Message-State: AOAM531xtcJhwL7NZ9/FmezHjryl1IG0g7GNzFl/9NKBwJKdq8EMZ0DJ QVr3kx7+7a4IFPfpR0aH+7k= X-Google-Smtp-Source: ABdhPJz41xCpO0VkuEmg6Jb1VNkaQeMfiyhoRJqY33tLy16EFE29vissNcZ5Ec4C8iIUDArvay0YaQ== X-Received: by 2002:a05:6402:105a:: with SMTP id e26mr24256372edu.164.1616402664114; Mon, 22 Mar 2021 01:44:24 -0700 (PDT) Received: from BV030612LT ([188.24.140.160]) by smtp.gmail.com with ESMTPSA id hd8sm9111614ejc.92.2021.03.22.01.44.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 01:44:23 -0700 (PDT) Date: Mon, 22 Mar 2021 10:44:20 +0200 From: Cristian Ciocaltea To: Florian Fainelli Cc: "David S. Miller" , Andrew Lunn , Jakub Kicinski , Rob Herring , Andreas =?iso-8859-1?Q?F=E4rber?= , Manivannan Sadhasivam , Philipp Zabel , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 2/3] net: ethernet: actions: Add Actions Semi Owl Ethernet MAC driver Message-ID: <20210322084420.GA1503756@BV030612LT> References: <17876c6e-4688-59e6-216f-445f91a8b884@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <17876c6e-4688-59e6-216f-445f91a8b884@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210322_084425_680461_1F0BDB6C X-CRM114-Status: GOOD ( 19.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Florian, On Sun, Mar 21, 2021 at 08:30:07PM -0700, Florian Fainelli wrote: > Hi Christian, > > On 3/21/2021 4:29 PM, Cristian Ciocaltea wrote: > > Add new driver for the Ethernet MAC used on the Actions Semi Owl > > family of SoCs. > > > > Currently this has been tested only on the Actions Semi S500 SoC > > variant. > > > > Signed-off-by: Cristian Ciocaltea > > [snip] > > Do you know the story behind this Ethernet controller? I just happened to get a board based on the S500 SoC, so I took this opportunity to help improving the mainline kernel support, but other than that I do not really know much about the hardware history. > The various > receive/transmit descriptor definitions are 99% those defined in > drivers/net/ethernet/stmmicro/stmmac/descs.h for the normal descriptor. That's an interesting observation. I could only assume the vendor did not want to reinvent the wheel here, but I cannot say if this is a common design scheme or is something specific to STMicroelectronics only. > The register layout of the MAC looks completely different from a > dwmac100 or dwmac1000 however. Most probably this is Actions specific.. > -- > Florian _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel