2025-09-21 10:22 PM
Hello,
We are testing the st33ktpm2x as a secure key generator and storage on our raspberry cm4 running openwrt (kernel 6.6), but came across some problems when trying to access the device.
When we connect it via the i2c1 and use the dtbo provided from here it works: https://github.com/STMicroelectronics/TCG-TPM-I2C-DRV/tree/main but it only works with software i2c, not hardware. That isn't a big problem, but we need it on i2c4, and the provided dtbo only works with the i2c1. Is there a dts file available or some other instructions on how to make it work?
Thank you