[PATCH V2 03/10] arm64: dts: imx8mp-beacon: Fix RTC capacitive load

Frank Li Frank.li at nxp.com
Wed Apr 16 07:41:25 PDT 2025


On Tue, Apr 15, 2025 at 08:01:29PM -0500, Adam Ford wrote:
> Although not noticeable when used every day, the RTC appears to drift when
> left to sit over time.  This is due to the capacitive load not being
> properly set. Fix RTC drift by correcting the capacitive load setting
> from 7000 to 12500, which matches the actual hardware configuration.
>
> Fixes: 25a5ccdce767 ("arm64: dts: freescale: Introduce imx8mp-beacon-kit")
> Signed-off-by: Adam Ford <aford173 at gmail.com>
> ---

Reviewed-by: Frank Li <Frank.Li at nxp.com>

> V2:  Change commit message, no active changes.
>
>  arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> index 15f7ab58db36..88561df70d03 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> @@ -257,6 +257,7 @@ eeprom at 50 {
>  	rtc: rtc at 51 {
>  		compatible = "nxp,pcf85263";
>  		reg = <0x51>;
> +		quartz-load-femtofarads = <12500>;
>  	};
>  };
>
> --
> 2.48.1
>



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