From 38c0483d08aa905852b3fd7d62334223daf90079 Mon Sep 17 00:00:00 2001 From: Christoph Niedermaier Date: Thu, 21 Dec 2023 17:46:33 +0100 Subject: [PATCH] ARM: dts: imx6ull-dhcor: Remove 900MHz operating point Due to CPU lifetime consideration of the SoC manufacturer [1] and the preferred area of operation in the industrial related environment, set the maximum frequency for each DHCOM i.MX6ULL to 792MHz, as with the industrial type. This is done by removing the operating point at 900MHz and set the clock-frequency to 792000000. [1] https://www.nxp.com/docs/en/application-note/AN5337.pdf Signed-off-by: Christoph Niedermaier Signed-off-by: Shawn Guo --- arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi index 45315adfaa86f..75486e1b0c15f 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi @@ -28,10 +28,14 @@ /* * Due to the design as a solderable SOM, there are no capacitors * below the SoC, therefore higher voltages are required. + * Due to CPU lifetime consideration of the SoC manufacturer and + * the preferred area of operation in the industrial related + * environment, set the maximum frequency for each DHCOM i.MX6ULL + * to 792MHz, as with the industrial type. */ + clock-frequency = <792000000>; operating-points = < /* kHz uV */ - 900000 1275000 792000 1250000 /* Voltage increased */ 528000 1175000 396000 1025000 @@ -39,7 +43,6 @@ >; fsl,soc-operating-points = < /* KHz uV */ - 900000 1250000 792000 1250000 /* Voltage increased */ 528000 1175000 396000 1175000 -- 2.30.2