intel/skylake: Add USB2 port config for max settings

Add a new USB2_PORT_MAX with the max possible settings
(56mV) for the TX and Pre-emphasis bias values.  Also fix
the settings for the detachable tablet config to match the
skylake HSIO tuning guide as it was incorrect before.

TEST=build and boot on glados

Change-Id: Id9ccc683fe92c962095347e0d1a0afeb082c821f
Signed-off-by: Patrick Georgi <>
Original-Commit-Id: e5d56831e75f98a3c75ed333e4b79b1a37f14792
Original-Change-Id: Ia2e3e93236f1463201f83a1cae28349de2836110
Original-Signed-off-by: Duncan Laurie <>
Original-Reviewed-by: Aaron Durbin <>
Reviewed-by: Paul Menzel <>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <>
1 file changed