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 B4889CA5FA5 for ; Mon, 28 Sep 2026 11:22:10 +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:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=7vZK3vppnPXE9w+XkjoZFUqXpNJS9jy09Vj+8yd4Fjc=; b=rW/W6+jzl3sJg0CP8w195qIwTv Cd8XcWHgW8bdU7remXgaeHnypfktTW2hw6t6VOym/5oaYsvHetbT9jeyN4S90D9VeONHXcFkcmrfM dfA0Cwe0+OiCM2Wml2bHgHN/IPa3SQQSCbMwXQa964AYDvby9XE5UNad9frv2Zvryq/7XwWfKmNql cd5CRLjhD1d0DxuOaAK4Wy8DbOx8IgN9js/BEwD1bdTj5ECicFJvg6f6qlcYEySkIS9g+Pb5HJ5m7 HlhtirKtnVnIoppZWFqUYVDs6rbJniXYZ93VZwo0HHFnFCC4t6H1uLZjU7tnRuAf9eUPbWI17TkLX AnXfQRLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xB9Qo-00000000RM7-1drH; Mon, 28 Sep 2026 11:22:02 +0000 Received: from www537.your-server.de ([188.40.3.216]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xB9Qm-00000000RL6-1ACB for linux-arm-kernel@lists.infradead.org; Mon, 28 Sep 2026 11:22:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ew.tq-group.com; s=default2602; h=Content-Transfer-Encoding:MIME-Version: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References; bh=7vZK3vppnPXE9w+XkjoZFUqXpNJS9jy09Vj+8yd4Fjc=; b=IfDOZfkIlnpP7Ba5hxOdolNLjf 6ACdrrab22gjJo2npM95shBKfxh2L3WgvS2hg3XyTqFZqghrqhuXotZhGfgeRvv3NGWxcqG6Mdkhy nCse74L7xPBEcg99GxtBZzS+/8nSys1sVMyMqwq4/OyTp/rBYIzajvoQcurMqOgFJD0CXhGeZrBf2 2EgwhmpDLyAFeFUGvqqQBov8y1Hnc3FoPrZuM+mCK05doRpy4O9npcatI3+C0RNj2MtQWfgZ7cZr3 1G42fCTEqKeIGlIQR+IusCppcrgpgzis6WbNTXwN3DteiNJGM7TyweqrTDmyjx1IfcPKpZ0KZxzUo VRvDa5Ag==; Received: from sslproxy04.your-server.de ([78.46.152.42]) by www537.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96.2) (envelope-from ) id 1xB9Qj-000GD8-24; Mon, 28 Sep 2026 13:21:57 +0200 Received: from localhost ([127.0.0.1]) by sslproxy04.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1xB9Qi-0006Dd-2h; Mon, 28 Sep 2026 13:21:57 +0200 From: Alexander Stein To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Markus Niebel , linux@ew.tq-group.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alexander Stein Subject: [PATCH 1/2] arm64: dts: imx95-tqma9596sa-mb-smarc-2.dts: improve SD reset pulse Date: Mon, 28 Sep 2026 13:21:41 +0200 Message-ID: <20260928112143.294091-1-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Virus-Scanned: Clear (ClamAV 1.4.3/28137/Mon Sep 28 08:24:12 2026) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260928_042200_433133_0F47713D X-CRM114-Status: UNSURE ( 9.79 ) X-CRM114-Notice: Please train this message. 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 From: Markus Niebel SD card spec says that at least 1 msec of power cut is needed to reset an SD card. This is needed to get out of UHS-I mode. In fact this pulse length alone is far too short in real world environment due to capacitance etc. Implement a longer pulse using regulator settings: 200 msec as working for other SoM using MB-SMARC-2. Signed-off-by: Markus Niebel Signed-off-by: Alexander Stein --- arch/arm64/boot/dts/freescale/imx95-tqma9596sa-mb-smarc-2.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx95-tqma9596sa-mb-smarc-2.dts b/arch/arm64/boot/dts/freescale/imx95-tqma9596sa-mb-smarc-2.dts index 97726eded0f86..e376d3a9d6180 100644 --- a/arch/arm64/boot/dts/freescale/imx95-tqma9596sa-mb-smarc-2.dts +++ b/arch/arm64/boot/dts/freescale/imx95-tqma9596sa-mb-smarc-2.dts @@ -243,6 +243,8 @@ &pcie1 { }; ®_sdvmmc { + startup-delay-us = <100>; + off-on-delay-us = <200000>; status = "okay"; }; -- 2.55.0