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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 BC685ECDFD0 for ; Fri, 14 Sep 2018 13:18:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 72152206B2 for ; Fri, 14 Sep 2018 13:18:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="ofJOFCzU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 72152206B2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lunn.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728200AbeINSdX (ORCPT ); Fri, 14 Sep 2018 14:33:23 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:34606 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727013AbeINSdX (ORCPT ); Fri, 14 Sep 2018 14:33:23 -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; bh=6iRjRWL740kb+PeABE+G71gJzC+7oZfV7p6kpViX5CU=; b=ofJOFCzUyXieJqhJDiyoxO78fGfWCuhxntwAIXdNKPf5xFrObgrXxTUTljh8mdYDgKsE+Xl1IyMuy6fLXdMQgqq6NXDmWSYAaWLqGKWBjWZeaPTF29By+rn7s7LxPJkEXkjWBSdGAYJKlClZxZ+qUXTqFUL6eSiDzzq0UK8U+34=; Received: from andrew by vps0.lunn.ch with local (Exim 4.84_2) (envelope-from ) id 1g0nzi-0004OM-C7; Fri, 14 Sep 2018 15:18:46 +0200 Date: Fri, 14 Sep 2018 15:18:46 +0200 From: Andrew Lunn To: Quentin Schulz Cc: alexandre.belloni@bootlin.com, ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, davem@davemloft.net, f.fainelli@gmail.com, allan.nielsen@microchip.com, linux-mips@linux-mips.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, thomas.petazzoni@bootlin.com, antoine.tenart@bootlin.com Subject: Re: [PATCH net-next 2/7] net: phy: mscc: add support for VSC8584 PHY Message-ID: <20180914131846.GG14865@lunn.ch> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Most of the init sequence of a PHY of the package is common to all PHYs > in the package, thus we use the SMI broadcast feature which enables us > to propagate a write in one register of one PHY to all PHYs in the > package. Hi Quinten Could you say a bit more about the broadcast. Does the SMI broadcast go to all PHY everywhere on an MDIO bus, or only all PHYs within one package? I'm just thinking about the case you need two of these packages to cover 8 switch ports. Thanks Andrew