[coreboot-gerrit] Change in coreboot[master]: google/snappy: enhance BigDaddy USB#2 2.0 strength

[Kevin Chiu (Code Review)]

Kevin Chiu has uploaded this change for review. ( https://review.coreboot.org/23649

Change subject: google/snappy: enhance BigDaddy USB#2 2.0 strength
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google/snappy: enhance BigDaddy USB#2 2.0 strength

Fine tune 14" BigDaddy USB#2 2.0 strength:
PERPORTPETXISET: 7
PERPORTTXISET: 1
IUSBTXEMPHASISEN: 3
PERPORTTXPEHALF: 0

this value could have USB#2 2.0 EA/function pass.

BUG=b:72922816
BRANCH=reef
TEST=emerge-snappy coreboot
Change-Id: I0ea1b966b7c02c95bf0ea1138a5629fd3b576439
Signed-off-by: Kevin Chiu 
---
M src/mainboard/google/reef/variants/snappy/mainboard.c
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/23649/1

diff --git a/src/mainboard/google/reef/variants/snappy/mainboard.c b/src/mainboard/google/reef/variants/snappy/mainboard.c
index ac76a88..990f483 100644
--- a/src/mainboard/google/reef/variants/snappy/mainboard.c
+++ b/src/mainboard/google/reef/variants/snappy/mainboard.c
@@ -92,7 +92,7 @@
    case SKU_BIGDADDY_KBDBKLIGHT:
    case SKU_BIGDADDY:
    	cfg->usb2eye[1].Usb20PerPortPeTxiSet = 7;
-		cfg->usb2eye[1].Usb20PerPortTxiSet = 7;
+		cfg->usb2eye[1].Usb20PerPortTxiSet = 1;
    	cfg->usb2eye[1].Usb20IUsbTxEmphasisEn = 3;
    	cfg->usb2eye[1].Usb20PerPortTxPeHalf = 0;
    	break;