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-rw-r--r--src/mainboard/google/zork/variants/dirinboz/overridetree.cb21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/dirinboz/overridetree.cb b/src/mainboard/google/zork/variants/dirinboz/overridetree.cb
index fc9c5fdfb0..1bfea1d1c4 100644
--- a/src/mainboard/google/zork/variants/dirinboz/overridetree.cb
+++ b/src/mainboard/google/zork/variants/dirinboz/overridetree.cb
@@ -60,6 +60,27 @@ chip soc/amd/picasso
.tx_res_tune = 0x01,
}"
+ # USB3 phy parameter
+ register "usb3_phy_override" = "1"
+
+ # USB3 Port0 Default
+ register "usb3_phy_tune_params[0]" = "{
+ .rx_eq_delta_iq_ovrd_val = 0x8,
+ .rx_eq_delta_iq_ovrd_en = 0x1,
+ }"
+
+ # SUP_DIG_LVL_OVRD_IN Default
+ register "usb3_rx_vref_ctrl" = "0x10"
+ register "usb3_rx_vref_ctrl_en" = "0x00"
+ register "usb_3_tx_vboost_lvl" = "0x07"
+ register "usb_3_tx_vboost_lvl_en" = "0x01"
+
+ # SUPX_DIG_LVL_OVRD_IN Default
+ register "usb_3_rx_vref_ctrl_x" = "0x10"
+ register "usb_3_rx_vref_ctrl_en_x" = "0x00"
+ register "usb_3_tx_vboost_lvl_x" = "0x07"
+ register "usb_3_tx_vboost_lvl_en_x" = "0x01"
+
# I2C2 for touchscreen and trackpad
register "i2c[2]" = "{
.speed = I2C_SPEED_FAST,