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-rw-r--r--src/mainboard/google/zork/variants/woomax/overridetree.cb24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/woomax/overridetree.cb b/src/mainboard/google/zork/variants/woomax/overridetree.cb
index de39891cc1..d1c5507feb 100644
--- a/src/mainboard/google/zork/variants/woomax/overridetree.cb
+++ b/src/mainboard/google/zork/variants/woomax/overridetree.cb
@@ -22,6 +22,30 @@ chip soc/amd/picasso
register "telemetry_vddcr_soc_offset" = "0"
# End : OPN Performance Configuration
+ #USB 2.0 strength
+ register "usb_2_port_tune_params[0]" = "{
+ .com_pds_tune = 0x03,
+ .sq_rx_tune = 0x3,
+ .tx_fsls_tune = 0x3,
+ .tx_pre_emp_amp_tune = 0x03,
+ .tx_pre_emp_pulse_tune = 0x0,
+ .tx_rise_tune = 0x1,
+ .rx_vref_tune = 0xf,
+ .tx_hsxv_tune = 0x3,
+ .tx_res_tune = 0x01,
+ }"
+
+ register "usb_2_port_tune_params[3]" = "{
+ .com_pds_tune = 0x03,
+ .sq_rx_tune = 0x3,
+ .tx_fsls_tune = 0x3,
+ .tx_pre_emp_amp_tune = 0x03,
+ .tx_pre_emp_pulse_tune = 0x0,
+ .tx_rise_tune = 0x1,
+ .rx_vref_tune = 0xf,
+ .tx_hsxv_tune = 0x3,
+ .tx_res_tune = 0x01,
+ }"
# USB OC pin mapping
register "usb_port_overcurrent_pin[2]" = "USB_OC_NONE" # NC