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=-5.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 D5477C3A59D for ; Mon, 19 Aug 2019 11:07:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9D48D2085A for ; Mon, 19 Aug 2019 11:07:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="H1SqC1V1"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="kcw+WeOb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9D48D2085A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ceo8R8LwZCiV+U+L3/qdxgD94Mrz+WsLCREo5Ng/J5M=; b=H1SqC1V1em0qEi zlAZJ8edgzGb9k63xd+fDpw2TAyhFahHoq5W5MtXmWF+LnwF8VwONu0P7zVgYRxnix35j2oRC/EW8 +S3S/HdAa/D9Ud7vEpHLJixTXrgvZnKRk3xVUApEqdEr9Cmed4Pgrlveesne2zJ7dU1/op9i6nxOR rJ/cGkxvu2ij85ANxGzD0ix7ldr86PhQbC2yl3wCl+Rx4bupVRI9CR7G5GkePap3WnaVXUWdRLIIu VSeykQSZbAFVQRdlJvOp1D5HE9LSPxHWZ3xrr1i1o3YfD+iYi0EC+JrexfnB7lbwJWjef7ObSB3o7 3TGm6F8LLnaANvHkBIXg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hzfV8-0003hc-A3; Mon, 19 Aug 2019 11:07:02 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hzfV5-0003h6-9h for linux-arm-kernel@lists.infradead.org; Mon, 19 Aug 2019 11:07:00 +0000 Received: from X250 (37.80-203-192.nextgentel.com [80.203.192.37]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 449C720844; Mon, 19 Aug 2019 11:06:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566212818; bh=FTtPghP4JhraCtk0Ky8Cw09VOBcrHb9sW6Gmu2Y9IbA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kcw+WeObE43jKg5SXlqiybEn0zF6OT4mLmNoQJl6smmrg721oVFWfcWYAMMlKDUui H6tKRaaWRYSmIOxjPPTS5kQE0XJgqpr/iRMi7efCwK5TDqdy+ecK7/3qJA5U+t5nsq 5avA7J9KEAcbb9vOoOeHuh85ZbfxvAuOv8pyL9fo= Date: Mon, 19 Aug 2019 13:06:46 +0200 From: Shawn Guo To: Philippe Schenker Subject: Re: [PATCH v4 02/21] ARM: dts: imx7-colibri: disable HS400 Message-ID: <20190819110645.GL5999@X250> References: <20190812142105.1995-1-philippe.schenker@toradex.com> <20190812142105.1995-3-philippe.schenker@toradex.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190812142105.1995-3-philippe.schenker@toradex.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190819_040659_366043_84207B2F X-CRM114-Status: GOOD ( 11.63 ) 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 , "devicetree@vger.kernel.org" , Michal =?utf-8?B?Vm9rw6HEjQ==?= , Pengutronix Kernel Team , Stefan Agner , Marcel Ziswiler , Sascha Hauer , "linux-kernel@vger.kernel.org" , "stefan@agner.ch" , Rob Herring , NXP Linux Team , Max Krummenacher , Fabio Estevam , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; 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 Mon, Aug 12, 2019 at 02:21:17PM +0000, Philippe Schenker wrote: > 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 Applied, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel