We have a customized board with NXP PCF8563 RTC I2C communication gets stuck


We have two slaves in a i2c bus EEPROM and RTC(PCF8563). After some period of time RTC stops responding. I2C communication gets stuck and the SDA line of RTC held low. Kindly help me on this.

What module? Which OS?

Define hardware & software context
Check I2C SCL and SDA property signals you use in devicetree
Try to disconnect use of DMA with i2c.