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1. To enable INT_PRI (hardware interrupt priority level 0~3) register, bit0@INT_CTRL = 0. 2. GIE need to be enabled before UART is initialized. [symptom] To define CONFIG_RWSIG / CONFIG_RSA / CONFIG_SHA256, then power on: after RW image is verified, firmware stuck in uart_flush_output(). Signed-off-by: Dino Li <dino.li@ite.com.tw> BRANCH=none BUG=none TEST=1. bit0@INT_CTRL = 0. 2. The RW image is verified and jump to image RW. Change-Id: I393a3d5f87ea257885b872c91bfce43aecbaea8b Reviewed-on: https://chromium-review.googlesource.com/309400 Commit-Ready: Dino Li <dino.li@ite.com.tw> Tested-by: Dino Li <dino.li@ite.com.tw> Reviewed-by: Randall Spangler <rspangler@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit
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