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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 68F11D62068 for ; Tue, 19 Nov 2024 16:57:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Type:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To :Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=820A+uqPjk3jrH0mLxNnwDGBvwyz/yvubtHzlTrrbZw=; b=czs5m70lqL6D4zZBVfyV6QXnkm qERKOcz6A83pAzN6r9trjYfUskzD1vh8e7DWi6hd9FkP1h/ZRmaVcB+JEFXZ2Jl+9gQRF1fFGLvLM qfCePjkTTYB8NznhqS6fYSh9a9D7Rq0UQxfBakodIqIm93NxRjysBAeya2dandxnc4oSfBk+FIklj YTen4g2QSGPY47H9DYSJKmo1d6B6c4yTytODRnwPbYxO4JSzb+mTDb6qMVbzWi8UPb76uM0mitELz 3i1gBLt8gRPK/UVi9RwBbqVdaUraKUcuq0t4k36ICYsbb9CeT6F5L+Odo3b43Al0M0x8fWXr7hby8 1xKYBpFA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tDRXv-0000000D7xD-2pPk; Tue, 19 Nov 2024 16:57:47 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tDRIH-0000000D3ko-0Qv1 for linux-arm-kernel@lists.infradead.org; Tue, 19 Nov 2024 16:41:38 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: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=820A+uqPjk3jrH0mLxNnwDGBvwyz/yvubtHzlTrrbZw=; b=aaZC67T0sa+lZ43UDQKQKt69/z 8VkYUpereUrC5gOPyh0zBSP9ETlYVP+htDja+DcuPS4RT7gA1EJSnBJhizZcl/1aLQmI/LGRbCxOQ vhZae9c3UWVvdIbCoFfEZ9JJLdb4QzDaK+ytPFLqhzJepmYuPcaZ0lEuet60q91Nuf9qHuTKTdVvN IdqJWQQF9UHu0xMyiOqifaWCvNe+SRGGPAIRirK6ysKtsGUKuKTZizNicVvQKkmMnC6z5RAcYFGJ1 ZShLf5w3Ie95GCUvWiZC3TO62GUXwgXhj3znzaQqJqpLqXAkP8cGa50N7aJv9GIOs1DuvdzMvr6Yw gSsmJ+rQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:50346) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tDRHw-0003wv-31; Tue, 19 Nov 2024 16:41:17 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.96) (envelope-from ) id 1tDRHv-0006Cs-07; Tue, 19 Nov 2024 16:41:15 +0000 Date: Tue, 19 Nov 2024 16:41:14 +0000 From: "Russell King (Oracle)" To: jan.petrous@oss.nxp.com Subject: Re: [PATCH v5 04/16] net: phy: Add helper for mapping RGMII link speed to clock rate Message-ID: References: <20241119-upstream_s32cc_gmac-v5-0-7dcc90fcffef@oss.nxp.com> <20241119-upstream_s32cc_gmac-v5-4-7dcc90fcffef@oss.nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241119-upstream_s32cc_gmac-v5-4-7dcc90fcffef@oss.nxp.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241119_084137_140272_8EFC2BA3 X-CRM114-Status: UNSURE ( 9.87 ) X-CRM114-Notice: Please train this message. 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: , Cc: Andrew Lunn , NXP S32 Linux Team , Emil Renner Berthing , imx@lists.linux.dev, Alexandre Torgue , Claudiu Beznea , Eric Dumazet , Iyappan Subramanian , Quan Nguyen , Fabio Estevam , linux-stm32@st-md-mailman.stormreply.com, Rob Herring , Jose Abreu , Jakub Kicinski , Paolo Abeni , Richard Cochran , devicetree@vger.kernel.org, Conor Dooley , Maxime Coquelin , linux-arm-msm@vger.kernel.org, Sascha Hauer , Keyur Chudgar , Minda Chen , Giuseppe Cavallaro , linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Vinod Koul , Pengutronix Kernel Team , Krzysztof Kozlowski , Shawn Guo , "David S. Miller" , Heiner Kallweit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 19, 2024 at 04:00:10PM +0100, Jan Petrous via B4 Relay wrote: > From: "Jan Petrous (OSS)" > > The RGMII interface supports three data rates: 10/100 Mbps > and 1 Gbps. These speeds correspond to clock frequencies > of 2.5/25 MHz and 125 MHz, respectively. > > Many Ethernet drivers, including glues in stmmac, follow > a similar pattern of converting RGMII speed to clock frequency. > > To simplify code, define the helper rgmii_clock(speed) > to convert connection speed to clock frequency. > > Suggested-by: Russell King (Oracle) > Reviewed-by: Andrew Lunn > Signed-off-by: Jan Petrous (OSS) Reviewed-by: Russell King (Oracle) Thanks! -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!