diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2015-10-26 15:27:29 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-10-28 22:27:54 +0100 |
| commit | 823259332cbffdde8394b750e4320c476f3eab02 (patch) | |
| tree | 4a6f208760fb6ffe5ae4ee71efcff98dc8835030 /src/soc | |
| parent | ba5487acf47b3d9a8e36ec8538659bb7eb8cf7a1 (diff) | |
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.
BUG=chrome-os-partner:45367
BRANCH=none
TEST=build and boot on glados
Change-Id: Id9ccc683fe92c962095347e0d1a0afeb082c821f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e5d56831e75f98a3c75ed333e4b79b1a37f14792
Original-Change-Id: Ia2e3e93236f1463201f83a1cae28349de2836110
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/308729
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12203
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/skylake/include/soc/usb.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/soc/intel/skylake/include/soc/usb.h b/src/soc/intel/skylake/include/soc/usb.h index 29b603afec..ee1e4880d1 100644 --- a/src/soc/intel/skylake/include/soc/usb.h +++ b/src/soc/intel/skylake/include/soc/usb.h @@ -65,6 +65,15 @@ struct usb2_port_config { * - Internal device down */ +/* Max TX and Pre-emp settings */ +#define USB2_PORT_MAX { \ + .enable = 1, \ + .tx_bias = USB2_BIAS_56MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_56MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ +} + /* 11.5"-12" */ #define USB2_PORT_LONG { \ .enable = 1, \ @@ -140,10 +149,10 @@ struct usb2_port_config { /* 2:1 Detachable, 2"-4" on tablet + 2"-4" on base */ #define USB2_PORT_DETACHABLE_TABLET { \ .enable = 1, \ - .tx_bias = USB2_BIAS_17MV, \ - .tx_emp_enable = USB2_PRE_EMP_ON | USB2_DE_EMP_ON, \ - .pre_emp_bias = USB2_BIAS_45MV, \ - .pre_emp_bit = USB2_FULL_BIT_PRE_EMP, \ + .tx_bias = USB2_BIAS_56MV, \ + .tx_emp_enable = USB2_PRE_EMP_ON, \ + .pre_emp_bias = USB2_BIAS_56MV, \ + .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ } struct usb3_port_config { |