i.MX 8M Plus - I2C3 and I2C5 enable

[colinbroderick]

Hello,

On the imx8mpevk, I2C busses 3 and 5 are the ones exposed on the expansion connectors. But they don't seem to be enabled in core-image-base. Running i2cdetect on those busses gives

Error: Could not open file `/dev/i2c-5' or `/dev/i2c/5' : No such file or directory

Are any extra steps required to enable them? Other I2C busses are working but as far as I can tell they are not accessible on the expansion connectors.

Thanks

[colinbroderick · Accepted solution]

It seems like the main expansion connector, labelled as I2C3 in the schematic, is actually I2C2 in the image. So problem solved. Just an off-by-one thing I guess.