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Jett Rink bdddd6fc18 grunt: Lowering I2C bus speed to 400kHz for TCPC chips 
The ANX3429QN-AA-R I2C bus cannot operate above 400kHz without
first setting register 0x3 to 0x48. We can just lower the bus
to 400kHz without having to set any registers and everything
works as expected.

BUG=b:71810830
BRANCH=none
TEST=Booted grunt with new firmware and p0 TCPC communicates
with EC successfully

Change-Id: I98e3c1a4844e1a79d23f8478fdf97ada72ad1c7d
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/862543
Reviewed-by: Edward Hill <ecgh@chromium.org>
2018-01-11 19:37:40 -08:00
board
grunt: Lowering I2C bus speed to 400kHz for TCPC chips
2018-01-11 19:37:40 -08:00
builtin
Add uint_(least|fast)*_t types
2017-08-07 19:29:13 -07:00
chip
chip/host: uart: Run uart_monitor_stdin() before task scheduling
2018-01-10 18:20:01 -08:00
common
ccd: Refactor routing CCD commands through TPM task
2018-01-10 15:44:29 -08:00
core
cr50: fix annoying LD warnings
2018-01-05 14:28:47 -08:00
cts
eCTS: Run openocd and lsusb as a root
2017-07-08 20:38:53 -07:00
docs
g: rename usb_updater into gsctool
2017-10-10 22:13:43 -07:00
driver
driver/charger/isl923x: Make sure CONFIG_CHARGER_NARROW_VDC is set
2018-01-10 06:02:13 -08:00
extra
ccd: prepare for handling crucial CCD commands through TPM task context
2018-01-10 15:44:29 -08:00
include
ccd: prepare for handling crucial CCD commands through TPM task context
2018-01-10 15:44:29 -08:00
power
power: Fix interrupt enable in siglog_deferred
2018-01-11 00:20:42 -08:00
test
buttons: Make buttons[] common.
2017-11-17 20:18:38 -08:00
util
stm32mon: do not write trailing empty space
2018-01-10 15:44:28 -08:00
.checkpatch.conf
checkpatch: prevent stupid complaints about description title
2016-07-21 13:13:27 -07:00
.gitignore
Makefile.rules: Add targets to see file size differences
2016-11-15 17:43:21 -08:00
COMMIT-QUEUE.ini
Add fizz-no-vmtest-pre-cq to the pre-cq set
2017-06-21 20:05:02 +00:00
LICENSE
Add LICENSE file to project
2012-05-11 09:11:52 -07:00
Makefile
Makefile: Generate hashes for the touchpad FW
2017-09-15 03:08:26 -07:00
Makefile.rules
npcx: modify the npcxspiflash little firmware to support UUT
2018-01-03 22:42:59 -08:00
Makefile.toolchain
ec_chip_mchp: Add MCHP chip folder
2017-12-28 12:35:07 -08:00
OWNERS
Add OWNERS files
2014-04-02 19:58:53 +00:00
PRESUBMIT.cfg
ec:Add presubmit hook to enforce host command definitions
2017-02-25 02:08:37 -08:00
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
servo: add usb_console to chroot
2017-11-16 21:07:40 -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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