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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Feb 19, 2020 at 01:11:24PM +0000, Oleksandr Suvorov wrote: > SD/MMC on Colibri iMX7S/D modules successfully support > 200Mhz frequency in HS200 mode. > > Removing the unnecessary max-frequency limit significantly > increases the performance: > > == before fix ==== > root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0 > /dev/mmcblk0: > Timing buffered disk reads: 252 MB in 3.02 seconds = 83.54 MB/sec > ================== > > === after fix ==== > root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0 > /dev/mmcblk0: > Timing buffered disk reads: 408 MB in 3.00 seconds = 135.94 MB/sec > ================== > > Fixes: f928a4a377e4 ("ARM: dts: imx7: add Toradex Colibri iMX7D 1GB (eMMC) support") > Signed-off-by: Oleksandr Suvorov > Reviewed-by: Fabio Estevam Applied, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 74481C35641 for ; 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Mon, 24 Feb 2020 03:42:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582515757; bh=6d15W9/8t0f2BUQq/bxEpoTZNWBs5M53q2YcmBYzXJ0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tCB4N1aZ8GuKSjK3dMk5vpqqBqZJhK5/4GGhIskjcnuh1zXQ2LzPeSgWo6Pz2++tY XImGD8Jn5K4j3PL2J+JijVyd5prlNfr8JMYCaFHx08hyD34BsyJpjlpbY/N1AptujL Fx8yybQuWlpbCOGp4PcOxP6s9O6mPH2IqXuYqeiY= Date: Mon, 24 Feb 2020 11:42:28 +0800 From: Shawn Guo To: Oleksandr Suvorov Cc: "devicetree@vger.kernel.org" , Marcel Ziswiler , Igor Opanyuk , Philippe Schenker , Fabio Estevam , Mark Rutland , NXP Linux Team , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Stefan Agner , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v2] ARM: dts: imx7-colibri: Fix frequency for sd/mmc Message-ID: <20200224034228.GI27688@dragon> References: <20200219131121.3565738-1-oleksandr.suvorov@toradex.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200219131121.3565738-1-oleksandr.suvorov@toradex.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, Feb 19, 2020 at 01:11:24PM +0000, Oleksandr Suvorov wrote: > SD/MMC on Colibri iMX7S/D modules successfully support > 200Mhz frequency in HS200 mode. > > Removing the unnecessary max-frequency limit significantly > increases the performance: > > == before fix ==== > root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0 > /dev/mmcblk0: > Timing buffered disk reads: 252 MB in 3.02 seconds = 83.54 MB/sec > ================== > > === after fix ==== > root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0 > /dev/mmcblk0: > Timing buffered disk reads: 408 MB in 3.00 seconds = 135.94 MB/sec > ================== > > Fixes: f928a4a377e4 ("ARM: dts: imx7: add Toradex Colibri iMX7D 1GB (eMMC) support") > Signed-off-by: Oleksandr Suvorov > Reviewed-by: Fabio Estevam Applied, thanks.