GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

google/lars: Set I2C[4] port voltage to 1.8v 

As the audio card needs 1.8V I2C operation. This patch adds
entry into devicetree.cb to set I2C port 4 operate at 1.8V.

TEST=Built & booted lars board. Verified that I2C
port 4 is operating at 1.8V level

Change-Id: Ia77841a26d024785d53251ca4b17afcf77f36a5b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e431e7acd85f6d7bf9d47f54ed41c48b8276071c
Original-Change-Id: Iccc85a5e3bbf2b5362665036e1294a6635e38fbe
Original-Signed-off-by: David Wu <David_Wu@quantatw.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/321000
Original-Commit-Ready: David Wu <david_wu@quantatw.com>
Original-Tested-by: David Wu <david_wu@quantatw.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/13627
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
david 2016-01-08 20:49:48 +08:00 committed by Patrick Georgi
parent 825f937b81
commit 5d7df71cfe
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/mainboard/google/lars/devicetree.cb
View File

@ -146,6 +146,7 @@ chip soc/intel/skylake
register "usb3_ports[1]" = "USB3_PORT_DEFAULT" # SD
register "usb3_ports[2]" = "USB3_PORT_DEFAULT" # Type-A Port (card)
register "usb3_ports[3]" = "USB3_PORT_DEFAULT" # Type-A Port (board)
register "SerialIoI2cVoltage[4]" = "1" # I2C4 is 1.8V
# Must leave UART0 enabled or SD/eMMC will not work as PCI
register "SerialIoDevMode" = "{ \