soc/intel/cannonlake: Add common ACPI support for CNL

Basic ACPI support for CNL on top of common ACPI, which will establish
a root of FADT table, fill MADT entry, create gnvs field, record wake
status and convert device names into DSDT dev definitions.

Change-Id: Ibc16d2afdd3cb9bad2ecb85cf320c88504409707
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/21076
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/src/soc/intel/cannonlake/acpi/globalnvs.asl b/src/soc/intel/cannonlake/acpi/globalnvs.asl
new file mode 100644
index 0000000000..ac60b36d51
--- /dev/null
+++ b/src/soc/intel/cannonlake/acpi/globalnvs.asl
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ */
+
+/* Global Variables */
+
+Name (\PICM, 0)		// IOAPIC/8259
+
+/*
+ * Global ACPI memory region. This region is used for passing information
+ * between coreboot (aka "the system bios"), ACPI, and the SMI handler.
+ * Since we don't know where this will end up in memory at ACPI compile time,
+ * we have to fix it up in coreboot's ACPI creation phase.
+ */
+
+External (NVSA)
+
+OperationRegion (GNVS, SystemMemory, NVSA, 0x2000)
+Field (GNVS, ByteAcc, NoLock, Preserve)
+{
+	/* Miscellaneous */
+	Offset (0x00),
+	OSYS,	16,	// 0x00 - Operating System
+	SMIF,	8,	// 0x02 - SMI function
+	PCNT,	8,	// 0x03 - Processor Count
+	PPCM,	8,	// 0x04 - Max PPC State
+	TLVL,	8,	// 0x05 - Throttle Level Limit
+	LIDS,	8,	// 0x06 - LID State
+	PWRS,	8,	// 0x07 - AC Power State
+	CBMC,	32,	// 0x08 - 0x0b AC Power State
+	PM1I,	64,	// 0x0c - 0x13 PM1 wake status bit
+	GPEI,	64,	// 0x14 - 0x17 GPE wake status bit
+	DPTE,	8,	// 0x1c - Enable DPTF
+	NHLA,	64,	// 0x1d - 0x24 NHLT Address
+	NHLL,	32,	// 0x25 - 0x28 NHLT Length
+	CID1,	16,	// 0x29 - 0x2a Wifi Country Identifier
+	U2WE,	16,	// 0x2b - 0x2c USB2 Wake Enable Bitmap
+	U3WE,	16,	// 0x2d - 0x2e USB3 Wake Enable Bitmap
+	UIOR,	8,	// 0x2f - UART debug controller init on S3 resume
+
+	/* ChromeOS specific */
+	Offset (0x100),
+	#include <vendorcode/google/chromeos/acpi/gnvs.asl>
+}