[coreboot-gerrit] Patch set updated for coreboot: apollolake: Add ACPI device for audio controller
Saurabh Satija (saurabh.satija@intel.com)
gerrit at coreboot.org
Fri Jun 24 03:34:17 CEST 2016
Saurabh Satija (saurabh.satija at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/15026
-gerrit
commit d72b6d35962005904f4135ccf49740a2de9a0fc5
Author: Saurabh Satija <saurabh.satija at intel.com>
Date: Tue Mar 8 17:33:29 2016 -0800
apollolake: Add ACPI device for audio controller
Add the audio controller device to ACPI and define the _DSM handler
to return the address of the NHLT table, if set in NVS.
Change-Id: I619dbfb562b94255e42a3e5d5a3926c28b14db3e
Signed-off-by: Saurabh Satija <saurabh.satija at intel.com>
---
src/soc/intel/apollolake/acpi/pch_hda.asl | 84 +++++++++++++++++++++++++++++++
1 file changed, 84 insertions(+)
diff --git a/src/soc/intel/apollolake/acpi/pch_hda.asl b/src/soc/intel/apollolake/acpi/pch_hda.asl
new file mode 100644
index 0000000..33cd771
--- /dev/null
+++ b/src/soc/intel/apollolake/acpi/pch_hda.asl
@@ -0,0 +1,84 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Intel Corporation.
+ * Copyright (C) 2016 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.
+ *
+ */
+
+/* Audio Controller - Device 14, Function 0 */
+
+Device (HDAS)
+{
+ Name (_ADR, 0x000E0000)
+ Name (_DDN, "Audio Controller")
+ Name (UUID, ToUUID("A69F886E-6CEB-4594-A41F-7B5DCE24C553"))
+
+ /* Device is D3 wake capable */
+ Name (_S0W, 3)
+
+ /* NHLT Table Address populated from GNVS values */
+ Name (NBUF, ResourceTemplate() {
+ QWordMemory (ResourceConsumer, PosDecode, MinFixed,
+ MaxFixed, Cacheable, ReadOnly,
+ 0, 0, 0, 0, 1,,, NHLT, AddressRangeACPI)
+ }
+ )
+
+ /*
+ * Device Specific Method
+ * Arg0 - UUID
+ * Arg1 - Revision
+ * Arg2 - Function Index
+ */
+ Method (_DSM, 4) {
+ If (LEqual (Arg0, ^UUID)) {
+ /*
+ * Function 0: Function Support Query
+ * Returns a bitmask of functions supported.
+ */
+ If (LEqual (Arg2, Zero)) {
+ /*
+ * NHLT Query only supported for revision 1 and
+ * if NHLT address and length are set in NVS.
+ */
+ If (LAnd (LEqual (Arg1, One),
+ LAnd (LNotEqual (NHLA, Zero),
+ LNotEqual (NHLL, Zero)))) {
+ Return (Buffer (One) { 0x03 })
+ }
+ Else {
+ Return (Buffer (One) { 0x01 })
+ }
+ }
+
+ /*
+ * Function 1: Query NHLT memory address used by
+ * Intel Offload Engine Driver to discover any non-HDA
+ * devices that are supported by the DSP.
+ *
+ * Returns a pointer to NHLT table in memory.
+ */
+ If (LEqual (Arg2, One)) {
+ CreateQWordField (NBUF, ^NHLT._MIN, NBAS)
+ CreateQWordField (NBUF, ^NHLT._MAX, NMAS)
+ CreateQWordField (NBUF, ^NHLT._LEN, NLEN)
+ Store (NHLA, NBAS)
+ Store (NHLA, NMAS)
+ Store (NHLL, NLEN)
+ Return (NBUF)
+ }
+ }
+
+ Return (Buffer (One) { 0x00 })
+ }
+}
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