mb/google/guybrush: update USB 2.0 Lane Parameter settings for USB port5
Tune the USB phy settings to update TXVREFTUNE0/COMPDISTUNE0 to
higher value for USB port 5 (Type-A).
BUG=b:194053549
TEST= Pass USB 2.0 SI Eye diagram measurement.
Signed-off-by: Ivy Jian <ivy_jian@compal.corp-partner.google.com>
Change-Id: Id1ede34bdbee0c1f9f7d10fc7ffbc9648af31e3e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56925
Reviewed-by: Rob Barnes <robbarnes@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
index f9a1201..c707c0f 100644
--- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
@@ -118,13 +118,13 @@
.txrestune = 1,
},
.Usb2PhyPort[5] = {
- .compdstune = 3,
+ .compdstune = 5,
.sqrxtune = 3,
.txfslstune = 3,
.txpreempamptune = 1,
.txpreemppulsetune = 0,
.txrisetune = 1,
- .txvreftune = 6,
+ .txvreftune = 9,
.txhsxvtune = 3,
.txrestune = 1,
},