search

joholl / rpi4-uboot-tpm

How to use a TPM in U-Boot on Raspberry Pi 4
Apache License 2.0
82 stars 16 forks source link

the U-Boot does not outpt boot message #11

Closed Chongba-w closed 2 years ago

Chongba-w commented 2 years ago

Hello, I have a try on the rpi3B+ according to your repo. The kernel finally is loaded successfully and the file tpm0 occers in the /dev. But when booting, the serial terminal does not receive the message of U-Boot as the U-Boot does not exist. Instead, I was told to login directly. So, how to enter the U-Boot console?

Chongba-w commented 2 years ago

Sorry，I konw the problem.

parthghughri commented 2 years ago

Hello @Chongba-w, It will be really helpful if you can explain a bit about the issue that you faced, and how did you connect the TPM and UART simultaneously with RPI4?

Thank you.

Chongba-w commented 2 years ago

Hello，Parth. Thanks for your replying. I have solved the problem. Wish you a good day!

parthghughri commented 2 years ago

Thanks @Chongba-w can you help me with the connections to make with TPM, RPI4 & UART that allow us to access TPM in u-boot shell. or what connection did you make?