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 8A505C83F07 for ; Mon, 7 Jul 2025 07:26:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id: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-Owner; bh=4ng1wQtLHFug7kmO6H2Kb5UP1OF3WN7eVo9JKF8DKI8=; b=1hr4CVQWusdWobwBMzvEQollJ+ lVjTCLPLs6dDoAaSylqX/3OOIOodLmYsNWog8Y2wURLz4eSp1NiO31wFo9RO2SbJ9XbSaoiPZtwJH w3C1mKL06oTwRI0k4lxP3ywV44TB3IbKhh+JVvnGghcCsWNjCM4tkwaffsTM4jC/aoC4DornJb4Bm W88unCRrJfRgiEv/14gZbNpL2ayEV6ZeGbVMyu0JZb8rVLvCxwrwdjt53rE6iEHLd4vb5SmwzodnN Z8n22jj4l2Up/9mxwS3YJs9iVkDPg5UvY3jJ2O/J4LIOznU0lIoN+tiaom4EGOJDUdEbQeHsrRj61 B4QlEtRw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uYgEs-00000001gFq-3DrA; Mon, 07 Jul 2025 07:26:10 +0000 Received: from mail-8141.vip.126.com ([60.191.81.41] helo=mail-8141.vip.163.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uYgCX-00000001fqI-337A for linux-arm-kernel@lists.infradead.org; Mon, 07 Jul 2025 07:23:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yeah.net; s=s110527; h=Date:From:To:Subject:Message-ID:MIME-Version: Content-Type; bh=4ng1wQtLHFug7kmO6H2Kb5UP1OF3WN7eVo9JKF8DKI8=; b=TmdpZtYxUI6+Dyd4c3TPrIw9Msyab+CBv2ECUfNf+/fvFrtmKMa9ubBnIKgUnH yMFRTHNAebhBcv2NFPfImyxFteMXGdJGQu2e1ODRiReKoNSQYM4CDQBBd90/OGte WU5zL6m5Ou6hECCCIP0XoaMB7D1ZdwkK//oUwVIylUnV0= Received: from dragon (unknown []) by gzsmtp3 (Coremail) with SMTP id M88vCgD3t5TDdWtov8w7AA--.42463S3; Mon, 07 Jul 2025 15:22:45 +0800 (CST) Date: Mon, 7 Jul 2025 15:22:43 +0800 From: Shawn Guo To: Adam Ford Cc: linux-arm-kernel@lists.infradead.org, aford@beaconembedded.com, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] arm64: dts: imx8mm-beacon: Fix HS400 USDHC clock speed Message-ID: References: <20250620213447.56392-1-aford173@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250620213447.56392-1-aford173@gmail.com> X-CM-TRANSID: M88vCgD3t5TDdWtov8w7AA--.42463S3 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjxU0b18UUUUU X-Originating-IP: [114.216.146.217] X-CM-SenderInfo: pvkd40hjxrjqh1hdxhhqhw/1tbiCwWDZWhrVSl45gAAsJ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250707_002345_969979_67582D8A X-CRM114-Status: GOOD ( 10.48 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jun 20, 2025 at 04:34:45PM -0500, Adam Ford wrote: > The reference manual for the i.MX8MM states the clock rate in > MMC mode is 1/2 of the input clock, therefore to properly run > at HS400 rates, the input clock must be 400MHz to operate at > 200MHz. Currently the clock is set to 200MHz which is half the > rate it should be, so the throughput is half of what it should be > for HS400 operation. > > Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit") > Signed-off-by: Adam Ford Applied both, thanks!