[coreboot-gerrit] Change in coreboot[master]: mb/google/skyrim: Fix I2C voltages

[Raul Rangel (Code Review)]

Raul Rangel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/62874 )

Change subject: mb/google/skyrim: Fix I2C voltages
......................................................................

mb/google/skyrim: Fix I2C voltages

Needed so i2c communication works.

BUG=b:224618411
TEST=build skyrim

Signed-off-by: Raul E Rangel 
Change-Id: I8ec7c18cae509b5683cb73153fd6d3747cf9d753
---
M src/mainboard/google/skyrim/variants/baseboard/devicetree.cb
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/74/62874/1

diff --git a/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb b/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb
index 61bc93d..7d4fb7f 100644
--- a/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb
@@ -41,6 +41,12 @@
    register "i2c_scl_reset" = "GPIO_I2C0_SCL | GPIO_I2C1_SCL |
    				GPIO_I2C2_SCL | GPIO_I2C3_SCL"

+	# I2C Pad Control RX Select Configuration
+	register "i2c_pad[0].rx_level" = "I2C_PAD_RX_1_8V" # Touchpad
+	register "i2c_pad[1].rx_level" = "I2C_PAD_RX_1_8V" # Touchscreen
+	register "i2c_pad[2].rx_level" = "I2C_PAD_RX_1_8V" # Audio/SAR
+	register "i2c_pad[3].rx_level" = "I2C_PAD_RX_1_8V" # GSC
+
    device domain 0 on
    	device ref lpc_bridge on
    		chip ec/google/chromeec