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baytrail: Add ACPI Device for XHCI

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This will allow USB devices to wake the system (if 5V is not turned off)
and the controller to enter D3 at runtime. (if autosuspend is enabled)

BUG=chrome-os-partner:23629
BRANCH=baytrail
TEST=build and boot on baytrail

1) with modified EC to leave 5V on in S3 ensure that waking from suspend
with USB keyboard works.
2) with laptop-mode-tools usb autosuepend config updated see that device
enters D3 at runtime when no external devices attached.

Change-Id: Ia396d42494e30105f06eb3bd65b4ba8b1372cf35
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182536
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2014-01-14 14:59:28 -08:00 • committed by chrome-internal-fetch
commit 2fb4664f80
2 changed files with 39 additions and 0 deletions
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3
src/soc/intel/baytrail/acpi/southcluster.asl
View file

@ -252,6 +252,9 @@ Device (IOSF)
// LPC Bridge 0:1f.0
#include "lpc.asl"
// USB XHCI 0:14.0
#include "xhci.asl"
// IRQ routing for each PCI device
#include "irqroute.asl"

36
src/soc/intel/baytrail/acpi/xhci.asl Normal file
View file

@ -0,0 +1,36 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
Device (XHCI)
{
Name (_ADR, 0x00140000)
Name (_PRW, Package () { 0x0d, 3 })
Name (_S3D, 3) /* Highest D state in S3 state */
Device (RHUB)
{
Name (_ADR, 0x00000000)
Device (PRT1) { Name (_ADR, 1) }
Device (PRT2) { Name (_ADR, 2) }
Device (PRT3) { Name (_ADR, 3) }
Device (PRT4) { Name (_ADR, 4) }
}
}