chromeec: provide proto v3 over i2c support

Hardware / Coreboot - Aaron Durbin [chromium.org] - 21 March 2015 04:43 UTC

Certain boards need to speak proto v3 over i2c. Leverage the transport agnostic API to share the logic with other proto v3 impelementations.

BUG=chrome-os-partner:31148 BRANCH=None TEST=Built and ran on ryu. Can talk to the EC successfully.

Change-Id: I1d0cd6907057af4ded3c4460193bbe1d897a1db7

aee78f0 chromeec: provide proto v3 over i2c support
src/ec/google/chromeec/Kconfig | 7 +++
src/ec/google/chromeec/ec_i2c.c | 107 +++++++++++++++++++++++++++++++++++++++
2 files changed, 114 insertions(+)

Upstream: review.coreboot.org

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