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During initialization the NvMem module looks for either a valid partition or that the NvMem area is fully erased. If neither of these two conditions were found, then it was only returning an error code and logging a message to the console. This CL modifies nvmem_init() so that if the error case as described above is detected, then it will call nvmem_setup() which will create two valid partitions. In addition, the setup function erases all of the existing data in the NvMem space. Enhanced the unit test that deals with both partitions being corrupted so that it verifies the version numbers are correct and that all user buffer data is set to 0xff. BUG=chrome-os-partner:55536 BRANCH=None TEST=Manual Executed make runtests TEST_LIST_HOST=nvmem and verifed that all tests passed. Change-Id: Ib932e02f15bd1aad7811032a12d826c76476e53f Signed-off-by: Scott <scollyer@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/362448 Commit-Ready: Vadim Bendebury <vbendeb@chromium.org> Tested-by: Scott Collyer <scollyer@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