From 631c8a269006bb8f02860606d35f8d6590954f5e Mon Sep 17 00:00:00 2001
From: Zheng Bao <fishbaozi@gmail.com>
Date: Wed, 18 Nov 2015 22:52:37 +0800
Subject: AMD/Bettong: add FCH's GPIO, UART & I2C support

Merlin Falcon's FCH has GPIO, UART and I2C. All of them are controlled
by registers mapped at MMIO space.
This ASL code is used for Windows drivers.

TEST:
1. Boot Windows 8 or Windows 10.
2. Install AMD Catalyst driver.
3. AMD FPIO, UART and I2C can be found in device manager.
4. I2C passed Multi Interface Test Tool (MITT) test.

Change-Id: I7ffe3fe0046d9a078cc38176c29a8e334646a5a3
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11750
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins)
---
 src/mainboard/amd/bettong/acpi/carrizo_fch.asl | 101 +++++++++++++++++++++++++
 src/mainboard/amd/bettong/dsdt.asl             |   3 +
 2 files changed, 104 insertions(+)
 create mode 100644 src/mainboard/amd/bettong/acpi/carrizo_fch.asl

diff --git a/src/mainboard/amd/bettong/acpi/carrizo_fch.asl b/src/mainboard/amd/bettong/acpi/carrizo_fch.asl
new file mode 100644
index 0000000000..5bfb366a49
--- /dev/null
+++ b/src/mainboard/amd/bettong/acpi/carrizo_fch.asl
@@ -0,0 +1,101 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Advanced Micro Devices, 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.
+ */
+
+Device(GPIO) {
+	Name (_HID, "AMD0030")
+	Name (_CID, "AMD0030")
+	Name(_UID, 0)
+
+	Method (_CRS, 0x0, NotSerialized) {
+		Name (RBUF, ResourceTemplate () {
+			//
+			// Interrupt resource. In this example, banks 0 & 1 share the same
+			// interrupt to the parent controller and similarly banks 2 & 3.
+			//
+			// N.B. The definition below is chosen for an arbitrary
+			//      test platform. It needs to be changed to reflect the hardware
+			//      configuration of the actual platform
+			//
+			Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , , ) {7}
+
+			//
+			// Memory resource. The definition below is chosen for an arbitrary
+			// test platform. It needs to be changed to reflect the hardware
+			// configuration of the actual platform.
+			//
+			Memory32Fixed(ReadWrite, 0xFED81500, 0x300)
+		})
+
+		Return (RBUF)
+	}
+
+	Method (_STA, 0x0, NotSerialized) {
+			Return (0x0F)
+	}
+}
+
+Device(FUR0) {
+	Name(_HID,"AMD0020")
+	Name(_UID,0x0)
+	Name(_CRS, ResourceTemplate() {
+		IRQ(Edge, ActiveHigh, Exclusive) {10}
+		Memory32Fixed(ReadWrite, 0xFEDC6000, 0x2000)
+	})
+	Method (_STA, 0x0, NotSerialized) {
+		Return (0x0F)
+	}
+}
+
+Device(FUR1) {
+	Name(_HID,"AMD0020")
+	Name(_UID,0x1)
+	Name(_CRS, ResourceTemplate() {
+			IRQ(Edge, ActiveHigh, Exclusive) {11}
+			Memory32Fixed(ReadWrite, 0xFEDC8000, 0x2000)
+	})
+	Method (_STA, 0x0, NotSerialized) {
+			Return (0x0F)
+	}
+}
+
+Device(I2CA) {
+	Name(_HID,"AMD0010")
+	Name(_UID,0x0)
+	Name(_CRS, ResourceTemplate() {
+		IRQ(Edge, ActiveHigh, Exclusive) {3}
+		Memory32Fixed(ReadWrite, 0xFEDC2000, 0x1000)
+	})
+
+	Method (_STA, 0x0, NotSerialized) {
+		Return (0x0F)
+	}
+}
+
+Device(I2CB)
+{
+	Name(_HID,"AMD0010")
+	Name(_UID,0x1)
+	Name(_CRS, ResourceTemplate() {
+		IRQ(Edge, ActiveHigh, Exclusive) {15}
+		Memory32Fixed(ReadWrite, 0xFEDC3000, 0x1000)
+	})
+	Method (_STA, 0x0, NotSerialized) {
+		Return (0x0F)
+	}
+}
diff --git a/src/mainboard/amd/bettong/dsdt.asl b/src/mainboard/amd/bettong/dsdt.asl
index 888d5cd292..2e6c96c567 100644
--- a/src/mainboard/amd/bettong/dsdt.asl
+++ b/src/mainboard/amd/bettong/dsdt.asl
@@ -69,6 +69,9 @@ DefinitionBlock (
 		/* Describe PCI INT[A-H] for the Southbridge */
 		#include <southbridge/amd/pi/hudson/acpi/pci_int.asl>
 
+		/* Describe the devices in the Southbridge */
+		#include "acpi/carrizo_fch.asl"
+
 	} /* End \_SB scope */
 
 	/* Describe SMBUS for the Southbridge */
-- 
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