topic Facing issue RTC-PCF85263 in Other NXP Products

Facing issue RTC-PCF85263

Kasturi_s — Mon, 11 Sep 2023 11:57:29 GMT

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.

Re: Facing issue RTC-PCF85263

Bio_TICFSL — Wed, 13 Sep 2023 15:22:11 GMT

Hello,

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

Regards

Re: Facing issue RTC-PCF85263

Kasturi_s — Wed, 20 Sep 2023 07:48:37 GMT

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.