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| author | Kevin Chiu <Kevin.Chiu@quantatw.com> | 2018-02-08 15:58:37 +0800 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2018-02-12 03:54:23 +0000 |
| commit | 3be35976d6a640d0bc4fd40e232b6499b170431f (patch) | |
| tree | 5ca8c37f6e81d503f99b49cc439ef5569d9f65c0 | |
| parent | 1b64ae1119fc7891b043d5d29bf93859ef9dbfa1 (diff) | |
| download | coreboot-3be35976d6a640d0bc4fd40e232b6499b170431f.tar.xz | |
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 <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/23649
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/google/reef/variants/snappy/mainboard.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/reef/variants/snappy/mainboard.c b/src/mainboard/google/reef/variants/snappy/mainboard.c index ac76a88a98..990f483e22 100644 --- a/src/mainboard/google/reef/variants/snappy/mainboard.c +++ b/src/mainboard/google/reef/variants/snappy/mainboard.c @@ -92,7 +92,7 @@ void mainboard_devtree_update(struct device *dev) 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; |