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State that needs to survive re-flashing of RO+RW is stored in the INFO bank. An example of such state is manufacture secrets, which need to survive reflashing from the personalize firmware to the initial TPM2 firmware. This change adds support for writing to the writeable flash info bank. BRANCH=none BUG=chrome-os-partner:43025 TEST=manually verified info1 reads and writes Signed-off-by: nagendra modadugu <ngm@google.com> Change-Id: I9226e2161e036d1dacccbe55b67724b449983008 Reviewed-on: https://chromium-review.googlesource.com/351274 Commit-Ready: Nagendra Modadugu <ngm@google.com> Tested-by: Nagendra Modadugu <ngm@google.com> Reviewed-by: Marius Schilder <mschilder@chromium.org> Reviewed-by: Bill Richardson <wfrichar@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly