From nobody Mon Feb 9 14:59:46 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7C7A82D837C; Mon, 5 Jan 2026 20:40:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767645603; cv=none; b=gIIlKuDp53jrPhvWyYlvuqdrGBQD5PWF2uBbVJ/A1QNDLzktFTNm4iK075t9+7nQbfOH+uGcARDDGqpWYLc5oT2gH53ZRryO8MzWDPV259RKm4CFnibADmJ4XSREsjcpmefbUF61mUsIeN1f9MGemU25eutIvWY2b0js33skxzE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767645603; c=relaxed/simple; bh=bs0gu352/b2VPHCY6L9bgBSN3iHfKWpitMMSdUXLot4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LSX73AG6yO7PY3GOd/ykmQ+WCWBEkKMNPhcUnHZAjCvDD/ZThPiEwpORw/Zp6Xa5PZVJIPIDmz1hwc7O+d1ylQh68GtXwWbXJP4rAVrEijGyUnodd2AkEGgTBjusznoF8g8rnI8UeFcfqy919g4Esiy2e/yZRie4ZQMjt+nAf4M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HszwU1xJ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HszwU1xJ" Received: by smtp.kernel.org (Postfix) with ESMTPS id 15C16C2BCAF; Mon, 5 Jan 2026 20:40:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767645603; bh=bs0gu352/b2VPHCY6L9bgBSN3iHfKWpitMMSdUXLot4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=HszwU1xJeK+By8y7hwv/zMFFVDu6LKfHUqN8TnzvVA1vHJAoh+b4So8c0GeYZkFqR mjj9o98qQBQlTLP2otu9WryI7khM1EP/JQt80ejUBIxUZry9S9n+mpzZhSu6tmK6Pk PZHGzjq5e3zbSgKmaXgqFjf0KO8y4adC49UPnHe+rf9fA4U0p58MWh7o63+MzPP0rn 6Gw6X/ZlJs6pHHsZOExKtCszRVFtWPWiBMYNWA+5wK3LwDxgrGr6s/5yb4vUkopnJL ppzCqLUFoWmo+ZT6dvmz4XBcS4ZWNNU8wEw2oOa/pu6xSQBPlK7uGEDZWmt5FgiJgs 6HSRNWYDzXRng== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B0D3C98335; Mon, 5 Jan 2026 20:40:03 +0000 (UTC) From: Sebastian Krzyszkowiak via B4 Relay Date: Mon, 05 Jan 2026 21:39:41 +0100 Subject: [PATCH 4/6] arm64: dts: imx8mq-librem5: Limit uSDHC2 frequency to 50MHz Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260105-l5-dtb-fixes-v1-4-f491881a7fe7@puri.sm> References: <20260105-l5-dtb-fixes-v1-0-f491881a7fe7@puri.sm> In-Reply-To: <20260105-l5-dtb-fixes-v1-0-f491881a7fe7@puri.sm> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@puri.sm, Sebastian Krzyszkowiak X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1216; i=sebastian.krzyszkowiak@puri.sm; h=from:subject:message-id; bh=irl0zhAfm+ZidJ+mS4bm54p88aI15LNArncdYbrSJ70=; b=owEBbQKS/ZANAwAKAejyNc8728P/AcsmYgBpXCGhUa/B36vt29Ky4lgETJGIUeQ0rm65f0UdJ asJVvLUtAaJAjMEAAEKAB0WIQQi3Z+uAGoRQ1g2YXzo8jXPO9vD/wUCaVwhoQAKCRDo8jXPO9vD /2w3EACl0zjF+MMlFtfaFDFk1Y+cQQHLZ22n6aJaMgKrMq+ocfwXWavoV/XvyutYmAPpyAIBBSi oSTL9U1qVWzv9v+mnmaO2TRVS/QtVxxlT4Teqg8HdmWEuACgveNenz3IVAef2N/QYIm2Inw49Xs Wc7n3mmo+O5OpZ7SMbn2uPbPxtdil6hQUTePXKCqe609IHNzc5/NdI6AX9+Ahm8qXyCY6Zs8Muc ljY5uW+A7/FGxKlpdIdQWefVBMzKH/5QayxErwI1dWRIRTsqEZjP02wvBCWBhAXH0XZDYwfVZN7 2dq69it3T9skgza68vQlmdjz/zKfD1Jsw6+PY1NK2eth/vLAsfTiapq74/MLzIjBezfgtCwoJOi vzSosG96x1riMq/cGA/31QtzxoK3FmFoseX7Anjm0N9TQ81darAs4wdJ95fE9ODhhBmlMDI8b+x zSaGfmX2alecTymxvsKgtqvi8A49NbRm8HrKbYzMeGmvelGIsKEU8TgY7bq+ewEozHL8aJS4ycB 4DgZFlwM7zADiU6fy7Oa+DWNv0Ne54+oKUVJmiIpVBax9cfiAsMnTJMh6G1I9ux8yR4gnmCehNK TFjnGGwRWgRlBgbg7TRBLqcU8jYr8WxOgm8OCZkEHYMAiI93mwNIrhuumnRzWdpPfRS2cibbnfF aKivrdCcZgPhIog== X-Developer-Key: i=sebastian.krzyszkowiak@puri.sm; a=openpgp; fpr=22DD9FAE006A11435836617CE8F235CF3BDBC3FF X-Endpoint-Received: by B4 Relay for sebastian.krzyszkowiak@puri.sm/default with auth_id=32 X-Original-From: Sebastian Krzyszkowiak Reply-To: sebastian.krzyszkowiak@puri.sm From: Sebastian Krzyszkowiak SparkLAN card has stability issues at 100MHz. It still appears to be able to max out its throughput this way, so limit the frequency to ensure stable operation. Signed-off-by: Sebastian Krzyszkowiak Reviewed-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64= /boot/dts/freescale/imx8mq-librem5.dtsi index 8c37b1293699..0e3c103dd7ff 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi @@ -1424,7 +1424,7 @@ &usdhc1 { =20 &usdhc2 { assigned-clocks =3D <&clk IMX8MQ_CLK_USDHC2>; - assigned-clock-rates =3D <200000000>; + assigned-clock-rates =3D <50000000>; pinctrl-names =3D "default", "state_100mhz", "state_200mhz"; pinctrl-0 =3D <&pinctrl_usdhc2>; pinctrl-1 =3D <&pinctrl_usdhc2_100mhz>; @@ -1434,7 +1434,7 @@ &usdhc2 { mmc-pwrseq =3D <&usdhc2_pwrseq>; post-power-on-delay-ms =3D <20>; cd-gpios =3D <&gpio2 12 GPIO_ACTIVE_LOW>; - max-frequency =3D <100000000>; + max-frequency =3D <50000000>; disable-wp; cap-sdio-irq; keep-power-in-suspend; --=20 2.52.0