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 7C7E314A8D for ; Wed, 9 Aug 2023 10:44:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0154C433C7; Wed, 9 Aug 2023 10:44:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691577844; bh=VBuhYHtB02KKxwHx70ljziQTH5+PePzK7p1OymMm1oU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nvS9JrRDTOgsizjFTPwGQNtAu75NiF0mHzaOsfQIftt5o1mdLdJITmBHZNHDRHOFa Rzy3gPanKTstcgFoOT5YTO3Zu2BpYLRgVm0v7gvi4JMCuKZXMWelmXeT/qqom5yuNd KQBPnMdRZrNjjQacuWikF9eJDGcKxCv/jVGgp1KM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dmitry Baryshkov , Fabio Estevam , Shawn Guo , Sasha Levin Subject: [PATCH 6.4 015/165] ARM: dts: nxp/imx: limit sk-imx53 supported frequencies Date: Wed, 9 Aug 2023 12:39:06 +0200 Message-ID: <20230809103643.276652094@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230809103642.720851262@linuxfoundation.org> References: <20230809103642.720851262@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Dmitry Baryshkov [ Upstream commit c486762fb17c99fd642beea3e1e4744d093c262a ] The SK-IMX53 board, bearing i.MX536A CPU, is not stable when running at 1.2 GHz (default iMX53 maximum). The SoC is only rated up to 800 MHz. Disable 1.2 GHz and 1 GHz frequencies. Fixes: 0b8576d8440a ("ARM: dts: imx: Add support for SK-iMX53 board") Signed-off-by: Dmitry Baryshkov Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx53-sk-imx53.dts | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/imx53-sk-imx53.dts b/arch/arm/boot/dts/imx53-sk-imx53.dts index 103e73176e47d..1a00d290092ad 100644 --- a/arch/arm/boot/dts/imx53-sk-imx53.dts +++ b/arch/arm/boot/dts/imx53-sk-imx53.dts @@ -60,6 +60,16 @@ status = "okay"; }; +&cpu0 { + /* CPU rated to 800 MHz, not the default 1.2GHz. */ + operating-points = < + /* kHz uV */ + 166666 850000 + 400000 900000 + 800000 1050000 + >; +}; + &ecspi1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ecspi1>; -- 2.40.1