iMX6 Sabre Auto DL: Using ECSPI and USB Simultaneously

[jonathon_reach]

Hello All,

I have an interesting puzzle here. In the imx6dl-sabreauto-ecspi.dts, turning on ecspi requires turning off usbh1 because i2c3 has a pin conflict with ecspi. I was curious if there was any way to reroute the i2c configuration so that both usb and ecspi can be used simultaneously.

On the schematic it appears MAX7310_b can be controlled by i2c2 or i2c3. Since i2c3 has the pin conflict how would I migrate over the dts and dtsi code to i2c2? Or is that even possible?

Thanks,

Jonathon

[alejandrolozan1]

Hi,

It should be possible to use the I2C_2 module instead. But as you can see in the below image the R713 and R689 resistors are not populated.

You would have to place them and to avoid any conflict remove R84 and R64.

Best Regards,

Alejandro