Patch set updated for coreboot: AMD/Bettong: add FCH's GPIO, UART & I2C support

[Zheng Bao]

Zheng Bao ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11750

-gerrit

commit 5f3be6e354168956ca1d43cc5cf8e98ffc1c7eb6
Author: zbao 
Date:   Fri Nov 6 22:02:36 2015 +0800

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 
    Signed-off-by: WANG Siyuan 
    Signed-off-by: Zheng Bao 
---
 src/mainboard/amd/bettong/dsdt.asl                 |   1 +
 src/southbridge/amd/pi/hudson/acpi/carrizo_fch.asl | 101 +++++++++++++++++++++
 2 files changed, 102 insertions(+)

diff --git a/src/mainboard/amd/bettong/dsdt.asl b/src/mainboard/amd/bettong/dsdt.asl
index 888d5cd..d5390bd 100644
--- a/src/mainboard/amd/bettong/dsdt.asl
+++ b/src/mainboard/amd/bettong/dsdt.asl
@@ -68,6 +68,7 @@ DefinitionBlock (

/* Describe PCI INT[A-H] for the Southbridge */
    	#include <southbridge/amd/pi/hudson/acpi/pci_int.asl>
+		#include <southbridge/amd/pi/hudson/acpi/carrizo_fch.asl>

} /* End _SB scope */

diff --git a/src/southbridge/amd/pi/hudson/acpi/carrizo_fch.asl b/src/southbridge/amd/pi/hudson/acpi/carrizo_fch.asl
new file mode 100644
index 0000000..5bfb366
--- /dev/null
+++ b/src/southbridge/amd/pi/hudson/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)
+	}
+}