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-rw-r--r--src/mainboard/google/poppy/variants/nami/devicetree.cb37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/mainboard/google/poppy/variants/nami/devicetree.cb b/src/mainboard/google/poppy/variants/nami/devicetree.cb
index f23a7fbbac..5e2575ff5a 100644
--- a/src/mainboard/google/poppy/variants/nami/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nami/devicetree.cb
@@ -197,15 +197,52 @@ chip soc/intel/skylake
# Touchscreen
register "i2c_voltage[0]" = "I2C_VOLTAGE_3V3"
+ register "i2c[0]" = "{
+ .speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 185,
+ .scl_hcnt = 90,
+ .sda_hold = 36,
+ },
+ }"
# Trackpad
register "i2c_voltage[1]" = "I2C_VOLTAGE_3V3"
+ register "i2c[1]" = "{
+ .early_init = 1,
+ .speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 185,
+ .scl_hcnt = 90,
+ .sda_hold = 36,
+ },
+ }"
# Pen
register "i2c_voltage[2]" = "I2C_VOLTAGE_1V8"
+ register "i2c[2]" = "{
+ .speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 185,
+ .scl_hcnt = 100,
+ .sda_hold = 36,
+ },
+ }"
# Audio
register "i2c_voltage[3]" = "I2C_VOLTAGE_1V8"
+ register "i2c[3]" = "{
+ .speed = I2C_SPEED_FAST,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 195,
+ .scl_hcnt = 90,
+ .sda_hold = 36,
+ },
+ }"
# Use GSPI0 for cr50 TPM. Early init is required to set up a BAR for TPM
# communication before memory is up.