From 37742f6870ec1d4b860769db25ef665cdb7c1615 Mon Sep 17 00:00:00 2001
From: Lijian Zhao <lijian.zhao@intel.com>
Date: Fri, 28 Oct 2016 11:01:09 -0700
Subject: [PATCH] soc/intel/apollolake: Add pmc_ipc device support

A dedicated pmc_ipc DSDT entry is required for pmc_ipc kernel driver.
The ACPI mode entry includes resources for PMC_IPC1, SRAM, ACPI IO and
Punit Mailbox.

BRANCH=None
BUG=chrome-os-partner:57364
TEST=Boot up into OS successfully and check with dmesg to see the
driver has been loaded successfully without errors.

Change-Id: Ib0a300febe1e7fc1796bfeca1a04493f932640e1
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/17181
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
---
 src/soc/intel/apollolake/acpi/pmc_ipc.asl     | 60 +++++++++++++++++++
 src/soc/intel/apollolake/acpi/southbridge.asl |  3 +
 2 files changed, 63 insertions(+)
 create mode 100644 src/soc/intel/apollolake/acpi/pmc_ipc.asl

diff --git a/src/soc/intel/apollolake/acpi/pmc_ipc.asl b/src/soc/intel/apollolake/acpi/pmc_ipc.asl
new file mode 100644
index 0000000000..c958c16f29
--- /dev/null
+++ b/src/soc/intel/apollolake/acpi/pmc_ipc.asl
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Intel Corp.
+ *
+ * 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.
+ */
+
+#include <soc/iomap.h>
+
+#define MAILBOX_DATA 0x7080
+#define MAILBOX_INTF 0x7084
+#define PMIO_LENGTH 0x80
+#define PMIO_LIMIT 0x480
+
+scope (\_SB) {
+	Device (IPC1)
+	{
+		Name (_HID, "INT34D2")
+		Name (_CID, "INT34D2")
+		Name (_DDN, "Intel(R) IPC1 Controller")
+		Name (RBUF, ResourceTemplate ()
+		{
+			Memory32Fixed (ReadWrite, 0x0, 0x2000, IBAR)
+			Memory32Fixed (ReadWrite, 0x0, 0x4, MDAT)
+			Memory32Fixed (ReadWrite, 0x0, 0x4, MINF)
+			IO (Decode16, ACPI_PMIO_BASE, PMIO_LIMIT,
+			      0x04, PMIO_LENGTH)
+			Memory32Fixed (ReadWrite, 0x0, 0x2000, SBAR)
+			Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive, , , )
+			{
+			      PMC_INT
+			}
+		})
+
+		Method (_CRS, 0x0, NotSerialized)
+		{
+			CreateDwordField (^RBUF, ^IBAR._BAS, IBAS)
+			Store (PMC_BAR0, IBAS)
+
+			CreateDwordField (^RBUF, ^MDAT._BAS, MDBA)
+			Store (MCH_BASE_ADDR + MAILBOX_DATA, MDBA)
+			CreateDwordField (^RBUF, ^MINF._BAS, MIBA)
+			Store (MCH_BASE_ADDR + MAILBOX_INTF, MIBA)
+
+			CreateDwordField (^RBUF, ^SBAR._BAS, SBAS)
+			Store (PMC_SRAM_BASE_0, SBAS)
+
+			Return (^RBUF)
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/soc/intel/apollolake/acpi/southbridge.asl b/src/soc/intel/apollolake/acpi/southbridge.asl
index 1c10f1a5ed..e3ee1ae496 100644
--- a/src/soc/intel/apollolake/acpi/southbridge.asl
+++ b/src/soc/intel/apollolake/acpi/southbridge.asl
@@ -46,5 +46,8 @@ Scope (\_SB)
 /* eMMC */
 #include "scs.asl"
 
+/* PMC IPC controller */
+#include "pmc_ipc.asl"
+
 /* PCI _OSC */
 #include <soc/intel/common/acpi/pci_osc.asl>