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-rw-r--r--src/mainboard/google/volteer/variants/eldrid/overridetree.cb18
1 files changed, 14 insertions, 4 deletions
diff --git a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb
index 72571c039a..51bc99159b 100644
--- a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb
@@ -58,12 +58,22 @@ chip soc/intel/tigerlake
},
},
}"
- #These settings improve the USB2 Port1 eye diagram
+
+ #Disable Type-A Port A1
+ register "usb2_ports[1]" = "USB2_PORT_EMPTY"
+
+ #Disable M.2 WWAN
+ register "usb2_ports[2]" = "USB2_PORT_EMPTY"
+
+ #improve the USB2 Port1 eye diagram
+ register "usb2_ports[3]" = "USB2_PORT_SHORT(OC_SKIP)"
+
+ #lower camera driving
register "usb2_ports[4]" = "{
.enable = 1,
- .tx_bias = 7,
- .tx_emp_enable = 7,
- .pre_emp_bias = 3,
+ .tx_bias = 0,
+ .tx_emp_enable = 0,
+ .pre_emp_bias = 0,
.pre_emp_bit = 0,
}"