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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 541E7C0650F for ; Tue, 30 Jul 2019 15:02:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 23CEF206B8 for ; Tue, 30 Jul 2019 15:02:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732119AbfG3PCZ (ORCPT ); Tue, 30 Jul 2019 11:02:25 -0400 Received: from mxout014.mail.hostpoint.ch ([217.26.49.174]:39016 "EHLO mxout014.mail.hostpoint.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725917AbfG3PCZ (ORCPT ); Tue, 30 Jul 2019 11:02:25 -0400 Received: from [10.0.2.46] (helo=asmtp013.mail.hostpoint.ch) by mxout014.mail.hostpoint.ch with esmtp (Exim 4.92 (FreeBSD)) (envelope-from ) id 1hsTOy-0005L8-Jo; Tue, 30 Jul 2019 16:46:56 +0200 Received: from [46.140.72.82] (helo=philippe-pc.toradex.int) by asmtp013.mail.hostpoint.ch with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91 (FreeBSD)) (envelope-from ) id 1hsTOy-000Mva-ER; Tue, 30 Jul 2019 16:46:56 +0200 X-Authenticated-Sender-Id: dev@pschenker.ch From: Philippe Schenker To: marcel.ziswiler@toradex.com, max.krummenacher@toradex.com, stefan@agner.ch, devicetree@vger.kernel.org, Rob Herring , Shawn Guo , Mark Rutland Cc: Stefan Agner , Philippe Schenker , Fabio Estevam , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Pengutronix Kernel Team , NXP Linux Team , Sascha Hauer Subject: [PATCH 02/22] ARM: dts: imx7-colibri: disable HS400 Date: Tue, 30 Jul 2019 16:46:29 +0200 Message-Id: <20190730144649.19022-3-dev@pschenker.ch> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190730144649.19022-1-dev@pschenker.ch> References: <20190730144649.19022-1-dev@pschenker.ch> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stefan Agner Force HS200 by masking bit 63 of the SDHCI capability register. The i.MX ESDHC driver uses SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400. With that the stack checks bit 63 to descide whether HS400 is available. Using sdhci-caps-mask allows to mask bit 63. The stack then selects HS200 as operating mode. This prevents rare communication errors with minimal effect on performance: sdhci-esdhc-imx 30b60000.usdhc: warning! HS400 strobe DLL status REF not lock! Signed-off-by: Stefan Agner Signed-off-by: Philippe Schenker --- arch/arm/boot/dts/imx7-colibri.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi index f1c1971f2160..f7c9ce5bed47 100644 --- a/arch/arm/boot/dts/imx7-colibri.dtsi +++ b/arch/arm/boot/dts/imx7-colibri.dtsi @@ -325,6 +325,7 @@ vmmc-supply = <®_module_3v3>; vqmmc-supply = <®_DCDC3>; non-removable; + sdhci-caps-mask = <0x80000000 0x0>; }; &iomuxc { -- 2.22.0