From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www537.your-server.de (www537.your-server.de [188.40.3.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E172849C4D0; Mon, 28 Sep 2026 11:22:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=188.40.3.216 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790594526; cv=none; b=rW953ETk3Iv6SWFbVX6qxE00+oNt74WtXSk5aVZsIS+IbdMwzeQTonKOlaN7nhvLiT5jmp/Y5j5bj2jXivLWMG9JuD70Pcg8OkKYPlzCDU+eX/nWnf2IXMWwj753SY922vKXCxPO092WFvtxt8qX7blD7y7Gff8uk4+/8KEed9s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790594526; c=relaxed/simple; bh=FeRe+FH3XUrQtvQmyWAoIqgCPVoofephEduMwOMAcTA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hT3oyOR0HjiP9NlHABb9IeX9I9JgDuJbDYC8jjNdz328uD5SC8rJqhyntxMNkXQoRLcf9FEoqvlcEc1OvCcsZGuKs8UQVp0mz33xWhXyqjy295TQKCJclEpu9gcdkUtB79j/va3zipT/d54n12k202BhXABwQOZv2Oo3V3Q+OyY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ew.tq-group.com; spf=pass smtp.mailfrom=ew.tq-group.com; dkim=pass (2048-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b=IfDOZfkI; arc=none smtp.client-ip=188.40.3.216 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b="IfDOZfkI" 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 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Virus-Scanned: Clear (ClamAV 1.4.3/28137/Mon Sep 28 08:24:12 2026) 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