diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2016-10-18 14:25:25 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2016-10-26 08:33:37 +0200 |
| commit | 3bfe3404df32ca226c624be0435c640bf1ebeae7 (patch) | |
| tree | 0eef45f9ad972dec851f902d84470cb0b54c3cbf /src/soc/intel/skylake/acpi/globalnvs.asl | |
| parent | ffb3a2d22506a86e205a757029f60abccfef0486 (diff) | |
intel/skylake: Add support to enable wake-on-usb attach/detach
Three things are required to enable wake-on-usb:
1. 5V to USB ports should be enabled in S3.
2. ASL file needs to have appropriate wake bit set.
3. XHCI controller should have the wake on attach/detach bit set for the
corresponding port in PORTSCN register.
Only part missing was #3.
This CL adds support to allow mainboard to define a bitmap in
devicetree corresponding to the ports that it wants to enable
wake-on-usb feature. Based on the bitmap, wake on attach/detach bits in
PORTSCN would be set by xhci.asl for the appropriate ports.
BUG=chrome-os-partner:58734
BRANCH=None
TEST=Verified that with port 5 enabled, chell wakes up from S3 on usb
attach/detach.
Change-Id: I40a22a450e52f74a0ab93ebb8170555d834ebdaf
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/17056
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/skylake/acpi/globalnvs.asl')
| -rw-r--r-- | src/soc/intel/skylake/acpi/globalnvs.asl | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/acpi/globalnvs.asl b/src/soc/intel/skylake/acpi/globalnvs.asl index 2bff7d3cf9..ab3c63ca8f 100644 --- a/src/soc/intel/skylake/acpi/globalnvs.asl +++ b/src/soc/intel/skylake/acpi/globalnvs.asl @@ -64,6 +64,8 @@ Field (GNVS, ByteAcc, NoLock, Preserve) NHLA, 64, // 0x31 - NHLT Address NHLL, 32, // 0x39 - NHLT Length CID1, 16, // 0x3d - Wifi Country Identifier + U2WE, 16, // 0x3f - USB2 Wake Enable Bitmap + U3WE, 8, // 0x41 - USB3 Wake Enable Bitmap /* ChromeOS specific */ Offset (0x100), |