I am trying to implement an external RTC module via i2c3 onto a board with a Solo X chip with a yocto Linux OS (v4.14.98). I'm unable to see this device being registered and the hw clock is not found.
I've followed this thread P1010 & I2C RTC DS1339 and implemented all the drivers mentioned, however, I feel this might be different now since this a 6 year old post. Please see my .config file attached.
My device tree changes are as follows:
status = "disabled";
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";
compatible = "microchip,mcp7940x";
reg = <0x68>;
I've disabled the snvs (internal rtc) to only enable the external rtc. The issue still persists when I don't disable the snvs.
I did notice on my defconfig I manually entered in CONFIG_I2C_MPC=y and it does not show up in .config file. I wasn't able to enable I2C_MPC via menuconfig, there wasn't a selection for it. (The .config file I retrieved from /linux-imx/4.14.98-r0/build/, is this correct?)
Please see my attachments for the my config and kernel print out from boot.