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| author | Kevin Chiu <kevin.chiu.17802@gmail.com> | 2020-12-16 14:24:05 +0800 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2020-12-17 07:55:15 +0000 |
| commit | ad77576bcb05bb6f54c2b361635dc905040f74b4 (patch) | |
| tree | 75f8187b73a8b7e7a13e8786b1686e2d2d2c7e45 /src/mainboard/google/zork/variants/morphius | |
| parent | 3b3dd84fb1415f078ab160bb283d18807afff445 (diff) | |
| download | coreboot-ad77576bcb05bb6f54c2b361635dc905040f74b4.tar.gz coreboot-ad77576bcb05bb6f54c2b361635dc905040f74b4.tar.bz2 coreboot-ad77576bcb05bb6f54c2b361635dc905040f74b4.zip | |
mb/google/zork: update USB 2.0 controller Lane Parameter for morphius
from AMD USB phy specialist recommended that TXVREFTUNE0 shouldn't over 0xD (the maximum)
in order to have enough room to accomdate a safe disconnect threshhold in COMPDISTUNE0.
TXVREFTUNE0: 0xf -> 0xd
BUG=b:172687208
BRANCH=zork
TEST=emerge-zork coreboot
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Change-Id: Ia104454d95e5e8d6a212c97fb09d61125945eeea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48653
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/mainboard/google/zork/variants/morphius')
| -rw-r--r-- | src/mainboard/google/zork/variants/morphius/overridetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/zork/variants/morphius/overridetree.cb b/src/mainboard/google/zork/variants/morphius/overridetree.cb index dbdf2e9a34be..bee59e6a1f06 100644 --- a/src/mainboard/google/zork/variants/morphius/overridetree.cb +++ b/src/mainboard/google/zork/variants/morphius/overridetree.cb @@ -43,7 +43,7 @@ chip soc/amd/picasso .tx_pre_emp_amp_tune = 0x03, .tx_pre_emp_pulse_tune = 0x0, .tx_rise_tune = 0x1, - .tx_vref_tune = 0xf, + .tx_vref_tune = 0xd, .tx_hsxv_tune = 0x3, .tx_res_tune = 0x01, }" |