Lijian Zhao has uploaded this change for review.
mb/google/arcada: Update USB2 port6 AFE setting
Accoriding to 574354, we need to tune each port to pass eye diagram
other than just use recommanded setting as they are base guidence only.
Bug=b:124407280
TEST=Build and boot up on sarien board.
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Change-Id: I587695809b368edd33852c4241de097ca31e9d66
---
M src/mainboard/google/sarien/variants/arcada/devicetree.cb
1 file changed, 8 insertions(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/32/31632/1
diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
index 244ba7a..cded5ff 100644
--- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
@@ -125,7 +125,14 @@
register "usb2_ports[3]" = "USB2_PORT_EMPTY"
register "usb2_ports[4]" = "USB2_PORT_EMPTY"
register "usb2_ports[5]" = "USB2_PORT_LONG(OC_SKIP)" # Camera
- register "usb2_ports[6]" = "USB2_PORT_MID(OC_SKIP)" # WWAN
+ register "usb2_ports[6]" = "{
+ .enable = 1, \
+ .ocpin = OC_SKIP, \
+ .tx_bias = USB2_BIAS_0MV, \
+ .tx_emp_enable = USB2_DE_EMP_ON_PRE_EMP_ON, \
+ .pre_emp_bias = USB2_BIAS_28P15MV, \
+ .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \
+ }" # WWAN
register "usb2_ports[7]" = "USB2_PORT_MID(OC_SKIP)" # USH
register "usb2_ports[8]" = "USB2_PORT_MID(OC_SKIP)" # Fingerprint
register "usb2_ports[9]" = "USB2_PORT_MID(OC_SKIP)" # Bluetooth
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