Facing issue RTC-PCF85263

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Facing issue RTC-PCF85263

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Kasturi_s
Contributor III

Dear Team,

I have integrated the driver for the RTC-PCF85263 chip into my BSP, as there is no official support for it in NXP's i.MX BSPs. I obtained the driver from the following link: https://www.spinics.net/lists/devicetree/msg137406.html

However, I am encountering the below log during system boot, and the date/time is not being reflected after a system reboot.

[ 20.328653] rtc-pcf85263 1-0051: Oscillator stop detected, date/time is not reliable.
[ 20.338081] rtc-pcf85263 1-0051: Oscillator stop detected, date/time is not reliable.
[ 20.346661] rtc-pcf85263 1-0051: rtc core: registered rtc-pcf85263 as rtc1
[ 20.353936] rtc-pcf85263 1-0051: PCF85263 RTC (irqpin=None irq=0)

Please kindly advise if I am missing any necessary steps or configurations.

Thank you in advance.

 
 
 
 
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Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello,

My two cents,  I guess this is a device tree issue, just put the hardware in the device tree of MX.

Regards

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Kasturi_s
Contributor III

Hello,

Below is my device tree node, kindly let me know if any correction is needed.

pcf85263: pcf85263@51 {
                compatible = "nxp,pcf85263";
                reg = <0x51>;

                interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
                interrupt-names = "INTB";

                quartz-load-capacitance = "PCF85263_QUARTZCAP_12p5pF";
                quartz-drive-strength = "PCF85263_QUARTZDRIVE_LOW";

                status = "okay";
        };

 

Thanks,

Kasturi.

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