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9139071b7188dc63e19ddf31fb748e35add79ebf
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Mary Ruthven 9139071b71 cr50: disable UART peripheral when the device is powered off. 
When the AP or EC is off, the RX line is low. Holding the UART RX line
low causes an interrupt storm. This change disables the UART TX and RX
on the peripheral when the device is powered off so the interrupts wont
be triggered.

BUG=chrome-os-partner:53514,b:28885578
BRANCH=none
TEST=run taskinfo on cr50 and make sure the IRQ count for 181 is a
reasonable number.

Change-Id: I42c779253860a2b1dd27ab41fb7097c887cc23ff
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/347355
2016-05-27 18:08:51 -07:00
board
cr50: disable UART peripheral when the device is powered off.
2016-05-27 18:08:51 -07:00
builtin
CR50: remove dependence of assert.h on util.h
2016-05-25 18:51:07 -07:00
chip
cr50: disable UART peripheral when the device is powered off.
2016-05-27 18:08:51 -07:00
common
cr50: monitor the state of Servo, the EC, and AP
2016-05-27 18:08:50 -07:00
core
chip: it83xx: Optimize interrupt usage of LPC access
2016-05-18 19:44:09 -07:00
docs
CCD: Add documentation
2015-05-07 00:00:47 +00:00
driver
Driver: BD99955: Enable BC1.2 support
2016-05-24 15:46:01 -07:00
extra
USB Serial: Add simple install script
2016-05-25 22:55:43 -07:00
include
cr50: monitor the state of Servo, the EC, and AP
2016-05-27 18:08:50 -07:00
power
reef: Initial commit
2016-05-20 17:08:34 -07:00
test
Cr50: NvMem: Connected function stubs in /board/tpm2/NVMem.c
2016-05-26 18:08:57 -07:00
util
kevin: rk3399: ectool interface for EC RTC alarm
2016-05-27 13:47:02 -07:00
.checkpatch.conf
checkpatch: do not consider split text strings a problem
2016-04-27 14:04:06 -07:00
.gitignore
Tell git to ignore all private subdirectories
2016-04-27 23:58:06 -07:00
COMMIT-QUEUE.ini
Ignore failures in HWTest and VMTest in the commit queue.
2013-11-01 14:08:36 +00:00
LICENSE
Add LICENSE file to project
2012-05-11 09:11:52 -07:00
Makefile
Ignore unused private board directories
2016-05-13 16:44:15 +00:00
Makefile.rules
board: rename it8380dev to it83xx_evb
2016-05-03 22:00:49 -07:00
Makefile.toolchain
cleanup: Makefiles should check path assumptions
2016-04-05 22:00:44 -07:00
OWNERS
Add OWNERS files
2014-04-02 19:58:53 +00:00
PRESUBMIT.cfg
presubmit: Add hook to check for config options.
2015-06-30 17:18:45 +00:00
README
README: Add link to quick-build instructions
2015-12-07 13:49:35 -08:00
README.fmap
Update EC config and FMAP to reserve room for vboot signatures
2012-05-04 14:42:58 -07:00
setup.py
ec3po: Add setup script.
2015-12-08 20:05:05 -08:00

README 

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
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