My goal is to make a software i2c channel using gpios in HiKey960.
I cannot find any gpios with pull-up mode(not sure how to set it).
Also if I’m to use existing i2c SCL/SDA line for bit-banging, how to set the register configuration in .dtsi ?
From the Hi3660 spec, I can see that “I2C3 can be multiplexed as the common GPIO function” but unable to find the register config to enable for our purpose.
Any help appreciated . Thanks in advance.