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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>
This commit is contained in:
Ivy Jian 2021-08-12 12:06:38 +08:00 committed by Nick Vaccaro
parent bcc74afa73
commit 13bf4dde29
1 changed files with 2 additions and 2 deletions
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4
src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
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@ -118,13 +118,13 @@ chip soc/amd/cezanne
.txrestune = 1, .txrestune = 1,
}, },
.Usb2PhyPort[5] = { .Usb2PhyPort[5] = {
.compdstune = 3, .compdstune = 5,
.sqrxtune = 3, .sqrxtune = 3,
.txfslstune = 3, .txfslstune = 3,
.txpreempamptune = 1, .txpreempamptune = 1,
.txpreemppulsetune = 0, .txpreemppulsetune = 0,
.txrisetune = 1, .txrisetune = 1,
.txvreftune = 6, .txvreftune = 9,
.txhsxvtune = 3, .txhsxvtune = 3,
.txrestune = 1, .txrestune = 1,
}, },