From mboxrd@z Thu Jan 1 00:00:00 1970 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 AC2CC61FFE; Tue, 12 Aug 2025 18:33:52 +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=1755023632; cv=none; b=kJ1HkWHmPPweizQ0W0lY0XJTE9+vrQq6oH2mjMQ3N4qH40uARz6ZMZWmLzY3/WZa+i81J/zRyBCmvixhk0HLOfK2sM9klj6z1Nc3DzZPoMM+OxfSupn2dg8jyQ+FHY+RHm5OmyiMgMTjptkxjUrEokSyp8EflOtemfYBgJLYQRI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755023632; c=relaxed/simple; bh=8WgV1UU30JQ0ZhzUZXwhwP5wQp+Ul5leQ0C0UidO/UY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QHghzJxFVdKD6ljpdkJajraw1LFXPilJxlteDlm2Y3LMSGYqDwDXE9pOz5Bdm197fSpdJee0FTyHA2UpwmoBRcnZhep1oFEIBRma/hzgFt+BpbwMLXpiAwdOLEnOSHAKwilpfgo4tmqpvFze5nCtq0iXrNyeYOBZH/TQ14KQLuo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gNmjH8/a; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gNmjH8/a" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7D28C4CEF0; Tue, 12 Aug 2025 18:33:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755023632; bh=8WgV1UU30JQ0ZhzUZXwhwP5wQp+Ul5leQ0C0UidO/UY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gNmjH8/aSSaKrPEFS+Xpin6GBWO8Fv76BF3OgNP7nIf+JVGWNb91I2Hh6noQNDvFm gUYwFlhKORM2W5tTAkbnuz5q13CksnXeBuTC1ee5aCe5+40p8sXcYkT11nYzGcWt45 Ql5ykJKDL463KBmQfvTjj9l+j6+AfNh/wALtJEIM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Adam Ford , Fabio Estevam , Shawn Guo , Sasha Levin Subject: [PATCH 6.16 103/627] arm64: dts: imx8mn-beacon: Fix HS400 USDHC clock speed Date: Tue, 12 Aug 2025 19:26:38 +0200 Message-ID: <20250812173423.235812367@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812173419.303046420@linuxfoundation.org> References: <20250812173419.303046420@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Adam Ford [ Upstream commit e16ad6c79906bba5e2ac499492b6a5b29ab19d6c ] The reference manual for the i.MX8MN states the clock rate in MMC mode is 1/2 of the input clock, therefore to properly run at HS400 rates, the input clock must be 400MHz to operate at 200MHz. Currently the clock is set to 200MHz which is half the rate it should be, so the throughput is half of what it should be for HS400 operation. Fixes: 36ca3c8ccb53 ("arm64: dts: imx: Add Beacon i.MX8M Nano development kit") Signed-off-by: Adam Ford Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi index 67a99383a632..917b7d0007a7 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi @@ -305,6 +305,8 @@ &usdhc3 { pinctrl-0 = <&pinctrl_usdhc3>; pinctrl-1 = <&pinctrl_usdhc3_100mhz>; pinctrl-2 = <&pinctrl_usdhc3_200mhz>; + assigned-clocks = <&clk IMX8MN_CLK_USDHC3>; + assigned-clock-rates = <400000000>; bus-width = <8>; non-removable; status = "okay"; -- 2.39.5