linux-kernel - Re: [PATCH 4/6] arm64: dts: imx8mq-librem5: Limit uSDHC2 frequency to 50MHz

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Message-ID: <aVzbOu7lyK5JBNw3@shlinux89>
Date: Tue, 6 Jan 2026 17:51:54 +0800
From: Peng Fan <peng.fan@....nxp.com>
To: sebastian.krzyszkowiak@...i.sm
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, kernel@...i.sm
Subject: Re: [PATCH 4/6] arm64: dts: imx8mq-librem5: Limit uSDHC2 frequency
 to 50MHz

On Mon, Jan 05, 2026 at 09:39:41PM +0100, Sebastian Krzyszkowiak via B4 Relay wrote:
>From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@...i.sm>
>
>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 <sebastian.krzyszkowiak@...i.sm>

Reviewed-by: Peng Fan <peng.fan@....com>