diff options
| author | Kane Chen <kane.chen@intel.com> | 2018-02-23 10:11:27 +0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-02-28 17:37:57 +0000 |
| commit | c3892c8fa8defc7bc898c1a1ba8d733c759b944a (patch) | |
| tree | b10b849f28438b056efa9cadc8c21fb6716420ad /configs/config.intel_galileo_gen1 | |
| parent | e099b309644c5b48c2502a951596daf125983569 (diff) | |
skylake: Fix unwanted disablement of ACPI UPWE
In PORTSC, Port Enabled/Disabled(PED) is RW1CS.
When there is a USB device attached on system, current UPWE method
will set 1 to PED, this will cause port disabled as it's RW1CS.
This change is inspired by xhci_port_state_to_neutral in linux driver.
It will mask all RO and RWS bits and set WDE and WCE.
BUG=b:70777816
TEST=System won't be awakend from s3 automatically when usb devices
is attached. Also system can be awakend by hotplugging usb
devices under S3.
Change-Id: Ifd4c2d6640fea538e0ac71d7c5e73ab529e94f42
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/23848
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'configs/config.intel_galileo_gen1')
0 files changed, 0 insertions, 0 deletions