[PATCH V2 01/10] arm64: dts: imx8mm-beacon: Fix RTC capacitive load

From: Adam Ford
Date: Tue Apr 15 2025 - 21:02:48 EST


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: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit")
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
---
V2: Change commit message, no active changes.

arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
index 62ed64663f49..9ba0cb89fa24 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
@@ -233,6 +233,7 @@ eeprom@50 {
rtc: rtc@51 {
compatible = "nxp,pcf85263";
reg = <0x51>;
+ quartz-load-femtofarads = <12500>;
};
};

--
2.48.1