Hi, I'm working on getting Raspberry Pi CM5 with a source kit io board and LetsTrust TPM with u-boot and Linux working. I'm building a custom u-boot similar to the description here: https://github.com/joholl/rpi4-uboot-tpm/blob/ad31306ce2f2d52f0572385bfc8bac33cb1f1f68/README.md#setting-up-and-configuring
I've got this successfully working on the CM4 where the PCR's are extended on boot. I'm now trying a similar setup on the CM5. I use openSUSE Tumbleweed with a custom built u-boot and linux kernel. I use kernel 6.12.35 with all the Raspberry Pi modifications from https://github.com/raspberrypi/linux The TPM is detected, but the PCR's are not extended, showing zeros for all PCRs (tpm2_pcrread). In addition to the tpm-slb9670.dtbo from the latest firmware files for the Raspberry Pi (https://raw.githubusercontent.com/raspberrypi/linux/refs/heads/rpi-6.12.y/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts ), I use the tpm-soft-spi.dts from https://raw.githubusercontent.com/joholl/rpi4-uboot-tpm/ad31306ce2f2d52f0572385bfc8bac33cb1f1f68/Raspberry_Pi_OS_64bit/tpm-soft-spi.dts Do these needs to be modified for Raspberry Pi Compute Module 5, or could it be something in u-boot that needs to be changed? Jonas
