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author | Vadim Bendebury <vbendeb@chromium.org> | 2016-12-15 21:49:23 -0800 |
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committer | Vadim Bendebury <vbendeb@chromium.org> | 2016-12-16 16:13:22 +0100 |
commit | 731ef9b7ad7087918a37db2d1d79ee53dfa9091b (patch) | |
tree | a24585ac64014da345e903f7522980f63d62c518 /src/mainboard/google/reef/variants | |
parent | 74add8b70f39801ff522fdc8c34d983e51a5a634 (diff) |
tpm2: handle failures more gracefully
When trying to bring up a device with a malfunctioning TPM2 chip, the
driver currently gets stuck waiting for SPI flow control, causing
bricked devices.
This patch puts a 100 ms cap on the waiting time - this should be
enough even for a longest NVRAM save operation which could be under
way on the TPM device.
BRANCH=gru
BUG=chrome-os-partner:59807
TEST=with a matching change in depthcharge, now a gru with corrupted
SPI TPM comes up to the recovery screen (it was not showing signs
of life before this change).
Change-Id: I63ef5dde8dddd9afeae91e396c157a1a37d47c80
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://review.coreboot.org/17898
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/mainboard/google/reef/variants')
0 files changed, 0 insertions, 0 deletions