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Wed, 19 Feb 2020 11:57:13 +0000 Received: from VI1PR05MB3279.eurprd05.prod.outlook.com ([fe80::c14f:4592:515f:6e52]) by VI1PR05MB3279.eurprd05.prod.outlook.com ([fe80::c14f:4592:515f:6e52%7]) with mapi id 15.20.2729.032; Wed, 19 Feb 2020 11:57:13 +0000 Received: from localhost (194.105.145.90) by PR3P191CA0037.EURP191.PROD.OUTLOOK.COM (2603:10a6:102:55::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2750.18 via Frontend Transport; Wed, 19 Feb 2020 11:57:12 +0000 From: Oleksandr Suvorov To: "devicetree@vger.kernel.org" Subject: [PATCH] ARM: dts: imx7-colibri: Fix frequency for sd/mmc Thread-Topic: [PATCH] ARM: dts: imx7-colibri: Fix frequency for sd/mmc Thread-Index: AQHV5xu5UD2HW6jXL0+gmbn3erTUlg== Date: Wed, 19 Feb 2020 11:57:13 +0000 Message-ID: <20200219115709.3473072-1-oleksandr.suvorov@toradex.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: PR3P191CA0037.EURP191.PROD.OUTLOOK.COM (2603:10a6:102:55::12) To VI1PR05MB3279.eurprd05.prod.outlook.com (2603:10a6:802:1c::24) authentication-results: spf=none (sender IP is ) smtp.mailfrom=oleksandr.suvorov@toradex.com; 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X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.13.125 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Marcel Ziswiler , Shawn Guo , Sascha Hauer , "linux-kernel@vger.kernel.org" , Stefan Agner , Oleksandr Suvorov , Philippe Schenker , Igor Opanyuk , Rob Herring , NXP Linux Team , Pengutronix Kernel Team , Fabio Estevam , "linux-arm-kernel@lists.infradead.org" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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 --- arch/arm/boot/dts/imx7-colibri.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi index d05be3f0e2a7..04717cf69db0 100644 --- a/arch/arm/boot/dts/imx7-colibri.dtsi +++ b/arch/arm/boot/dts/imx7-colibri.dtsi @@ -336,7 +336,6 @@ &usdhc3 { assigned-clock-rates = <400000000>; bus-width = <8>; fsl,tuning-step = <2>; - max-frequency = <100000000>; vmmc-supply = <®_module_3v3>; vqmmc-supply = <®_DCDC3>; non-removable;