New patch to review for coreboot: 09322b5 baytrail: Add ACPI Device for XHCI

[Aaron Durbin]

Aaron Durbin ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5046

-gerrit

commit 09322b51bc8398905c354b76bc3607d77c169a44
Author: Duncan Laurie 
Date:   Tue Jan 14 14:59:28 2014 -0800

baytrail: Add ACPI Device for XHCI

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 
    Reviewed-on: https://chromium-review.googlesource.com/182536
    Reviewed-by: Aaron Durbin 
    Signed-off-by: Aaron Durbin 
---
 src/soc/intel/baytrail/acpi/southcluster.asl |  3 +++
 src/soc/intel/baytrail/acpi/xhci.asl         | 36 ++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl
index ced1618..61642a5 100644
--- a/src/soc/intel/baytrail/acpi/southcluster.asl
+++ b/src/soc/intel/baytrail/acpi/southcluster.asl
@@ -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"

diff --git a/src/soc/intel/baytrail/acpi/xhci.asl b/src/soc/intel/baytrail/acpi/xhci.asl
new file mode 100644
index 0000000..4d5367a
--- /dev/null
+++ b/src/soc/intel/baytrail/acpi/xhci.asl
@@ -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) }
+	}
+}