diff options
| author | Kevin Chiu <Kevin.Chiu@quantatw.com> | 2018-03-02 11:51:28 +0800 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2018-03-06 17:40:36 +0000 |
| commit | 2be3bdd748e886c1b566d4fd6f4e6ef4e49596ec (patch) | |
| tree | e3e66d8bc96b0ecdaedfc57d50067d919a512896 /src/mainboard | |
| parent | d182b63347c744cabd674d4df64a2bfd3e9eef0e (diff) | |
google/snappy: enhance CCD type-A USB 2.0 phy strength
Alan(11")/BigDaddy(14") right type-A(port#2), CCD(port#4) are
occasionally undetectable. USB 2.0 phy needs an override to enhance
drive strength.
right type-A port#2
PERPORTPETXISET: 4
PERPORTTXISET: 4
IUSBTXEMPHASISEN: 1
PERPORTTXPEHALF: 0
CCD port#4
PERPORTPETXISET: 7
PERPORTTXISET: 7
IUSBTXEMPHASISEN: 1
PERPORTTXPEHALF: 0
BUG=b:72922816
BRANCH=reef
TEST=emerge-snappy coreboot
Change-Id: I2b18c11709280d00ec3a6ef10f93a416acb4fb45
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/24969
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/reef/variants/snappy/mainboard.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/snappy/mainboard.c b/src/mainboard/google/reef/variants/snappy/mainboard.c index 990f483e22..a625c60b6b 100644 --- a/src/mainboard/google/reef/variants/snappy/mainboard.c +++ b/src/mainboard/google/reef/variants/snappy/mainboard.c @@ -89,12 +89,33 @@ void mainboard_devtree_update(struct device *dev) sku_id = variant_board_sku(); switch (sku_id) { + case SKU_ALAN: + cfg->usb2eye[2].Usb20PerPortPeTxiSet = 4; + cfg->usb2eye[2].Usb20PerPortTxiSet = 4; + cfg->usb2eye[2].Usb20IUsbTxEmphasisEn = 1; + cfg->usb2eye[2].Usb20PerPortTxPeHalf = 0; + + cfg->usb2eye[4].Usb20PerPortPeTxiSet = 7; + cfg->usb2eye[4].Usb20PerPortTxiSet = 7; + cfg->usb2eye[4].Usb20IUsbTxEmphasisEn = 1; + cfg->usb2eye[4].Usb20PerPortTxPeHalf = 0; + break; case SKU_BIGDADDY_KBDBKLIGHT: case SKU_BIGDADDY: cfg->usb2eye[1].Usb20PerPortPeTxiSet = 7; cfg->usb2eye[1].Usb20PerPortTxiSet = 1; cfg->usb2eye[1].Usb20IUsbTxEmphasisEn = 3; cfg->usb2eye[1].Usb20PerPortTxPeHalf = 0; + + cfg->usb2eye[2].Usb20PerPortPeTxiSet = 4; + cfg->usb2eye[2].Usb20PerPortTxiSet = 4; + cfg->usb2eye[2].Usb20IUsbTxEmphasisEn = 1; + cfg->usb2eye[2].Usb20PerPortTxPeHalf = 0; + + cfg->usb2eye[4].Usb20PerPortPeTxiSet = 7; + cfg->usb2eye[4].Usb20PerPortTxiSet = 7; + cfg->usb2eye[4].Usb20IUsbTxEmphasisEn = 1; + cfg->usb2eye[4].Usb20PerPortTxPeHalf = 0; break; default: break; |