Alex1 Kao has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/56327 )
Change subject: UPSTREAM: mb/google/dedede/var/pirika: Add USB2 PHY parameters ......................................................................
UPSTREAM: mb/google/dedede/var/pirika: Add USB2 PHY parameters
This change adds fine-tuned USB2 PHY parameters for pirika.
BUG=192601233 TEST=Built and verified USB2 eye diagram test result
Signed-off-by: Alex1 Kao alex1_kao@pegatron.corp-partner.google.com Change-Id: Icf9fb41cd0ae40728e4ec5bd72a15ec3c45c963b --- M src/mainboard/google/dedede/variants/pirika/overridetree.cb 1 file changed, 6 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/56327/1
diff --git a/src/mainboard/google/dedede/variants/pirika/overridetree.cb b/src/mainboard/google/dedede/variants/pirika/overridetree.cb index b7fef8b..85e0b24 100644 --- a/src/mainboard/google/dedede/variants/pirika/overridetree.cb +++ b/src/mainboard/google/dedede/variants/pirika/overridetree.cb @@ -38,6 +38,12 @@
# USB Port Configuration register "usb2_ports[5]" = "USB2_PORT_MID(OC_SKIP)" # Camera + register "usb2_ports[7]" = "{ + .enable = 1, + .ocpin = OC_SKIP, + .pre_emp_bias = USB2_BIAS_11P25MV, + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, + }" # Integrated Bluetooth
register "tcc_offset" = "8" # TCC of 97C