tree dd9dce1cad4dd5084177b4def9d3d10e71d68e45
parent e614ebdf1e91711f6b41331ac6fbb34bae864074
author Jimmy Zhang <jimmzhang@nvidia.com> 1447880251 -0800
committer ChromeOS bot <3su6n15k.default@developer.gserviceaccount.com> 1448396116 +0000

smaug: Fix TPM failure causing system entering recovery mode

Based on SLB9645 4.7, it is more safe to send first command to TPM 150 ms
after the deassertion of the RESET# signal.

The failed unit tested with this patch can no long reproduce the issue
after 1000+ cycles reboot test.

BUG=chrome-os-partner:46039
BRANCH=firmware-smaug-7132.B
TEST=reboot test

Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>

Change-Id: I7f8b159d872936ac41c477cdb38cbb1f73cb8d1b
Reviewed-on: https://chromium-review.googlesource.com/313138
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Tested-by: Jimmy Zhang <jimmzhang@nvidia.com>
Reviewed-by: Tom Warren <twarren@nvidia.com>
Tested-by: Joseph Lo <yushun.lo@gmail.com>
Commit-Queue: Jimmy Zhang <jimmzhang@nvidia.com>