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If during PMIC initialization, it is identified that there was a VR fault, then dump fault registers 0x16 and 0x17 to EC console. This information is very useful during debugging sudden power losses in field and so it is printed out to EC console. Additionally, add panic reason with these register values as panic data so that OS can provide this information in cros ec panicinfo. This helps in retaining the information even if EC console logs overflow. BUG=b:65026806 BRANCH=eve TEST=Verified that on a VCCIO shutdown, PMIC VR fault is reported: "PMIC VRFAULT: PWRSTAT1=0x80 PWRSTAT2=0x00" Change-Id: I583e513f865aeefc7dfc9860ce0ce9789808dea2 Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://chromium-review.googlesource.com/896163 Reviewed-by: Furquan Shaikh <furquan@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