For reference, I use the following script to collect some data:

#!/bin/sh

# Extract the last component of coreboot version string.
# ex1. coreboot-4.12-2704-g1ba86f685b -> g1ba86f685b
# ex2. coreboot-4.12-2704-g1ba86f685b-wip -> wip
tag=$(cbmem -1 | head | grep '^coreboot' | cut -d' ' -f1 | awk '{ cnt = split($0, arr, "-"); print arr[cnt] }')
rev=$(uname -r)
echo "Gathering information on ${tag} with Linux ${rev}..."
echo

datadir="${HOME}/data/${tag}-${rev}"
mkdir -p "${datadir}"

echo "ACPI:"
acpidump > "${datadir}/acpidump.txt"
cat /sys/firmware/acpi/tables/DSDT > "${datadir}/dsdt.dat"
cat /sys/firmware/acpi/tables/SSDT > "${datadir}/ssdt.dat"
echo

echo "dmesg before modprobe:"
dmesg | grep -i tpm | tee "${datadir}/dmesg.log"
echo

echo "modprobe tpm_tis force=1..."
modprobe -r tpm_tis
modprobe tpm_tis force=1
echo

echo "dmesg after modprobe:"
dmesg | grep -i tpm | tee "${datadir}/dmesg.force.log"
echo

if [ -d "/sys/class/tpm/tpm0" ]; then
	echo "tpm0 found on sysfs"
	echo
	echo "/sys/class/tpm/tpm0/caps:"
	cat /sys/class/tpm/tpm0/caps | tee "${datadir}/tpm.caps.log"
	echo
	echo "/sys/class/tpm/tpm0/durations:"
	cat /sys/class/tpm/tpm0/durations | tee "${datadir}/tpm.durations.log"
	echo
	echo "/sys/class/tpm/tpm0/timeouts:"
	cat /sys/class/tpm/tpm0/timeouts | tee "${datadir}/tpm.timeouts.log"
else
    echo "tpm0 not found"
fi

echo
echo "done."

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