diff options
| author | Jim Lin <jilin@nvidia.com> | 2014-09-26 19:12:41 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-03-23 17:57:40 +0100 |
| commit | 654cf9c2d812dbb614e37db41b22f186553ced81 (patch) | |
| tree | d63fb61584404f8ea70c513bcd80f80dc52cd9c1 /payloads/libpayload/Config.in | |
| parent | 052b7fec0712bb0e1332cd6ff6d42e9243ce40b5 (diff) | |
libpayload: EHCI: Support root-hub TT feature
If EHCI controller has TT (Transaction Translator) support in
root-hub, then we need to keep control over this controller when
USB keyboard (low-speed device) is connected to root-hub port.
Need to add "CONFIG_LP_USB_EHCI_HOSTPC_ROOT_HUB_TT=y" to config file
(e.g. payloads/libpayload/configs/config.nyan_big) to support this
feature.
BUG=chrome-os-partner:32355
TEST=Tested on nyan_big platform.
Press ESC+REFRESH+POWER keys on internal keyboard to power up.
Press Left Arrow or Right Arrow on USB keyboard to switch between
"English" and "Default Locale" in coreboot UI. Or unplug and plug
in device and try again.
Root hub <- low-speed USB keyboard
Root hub <- full-speed hub <- low-speed USB keyboard
Root hub <- high-speed hub <- low-speed USB keyboard
Change-Id: Iaa2823f64c8769fc808ee7a316c378f18f004e63
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 4ad57fd673d6dc8814fe99a4ac420566bb17e77b
Original-Change-Id: Id86a289bc587653b85227c1d50f7a4f476f37983
Original-Signed-off-by: Jim Lin <jilin@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/220125
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/8737
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'payloads/libpayload/Config.in')
| -rw-r--r-- | payloads/libpayload/Config.in | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in index 7587b6ac8b..8ac96b5865 100644 --- a/payloads/libpayload/Config.in +++ b/payloads/libpayload/Config.in @@ -488,6 +488,16 @@ config USB_HUB Select this option if you want to compile in support for USB hubs. Say Y here unless you know exactly what you are doing. +config USB_EHCI_HOSTPC_ROOT_HUB_TT + bool "Support for USB EHCI ROOT HUB that has TT" + depends on USB_EHCI + default n + help + Select this option if USB EHCI root hub supports TT (Transaction + Translator). + To support this TT feature we read port-speed from non-standard + register HOSTPC (offset 84h of Operational Register base). + config USB_MSC bool "Support for USB storage" depends on USB |