soc/intel/apollolake: Add GPIO devices

Add GPIO controller in ACPI device description.

GPIO controller driver is probed in kernel and all
the pins in the banks are showing respective values.

Change-Id: I0512cfec872113b15fd204ec3b95efeac87f694a
Signed-off-by: Zhao, Lijian <lijian.zhao@intel.com>
Signed-off-by: Jagadish Krishnamoorthy <jagadish.krishnamoorthy@intel.com>
Reviewed-on: https://review.coreboot.org/14478
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

3 files changed, 148 insertions, 0 deletions

diff --git a/src/soc/intel/apollolake/acpi/gpio.asl b/src/soc/intel/apollolake/acpi/gpio.asl
new file mode 100644
index 0000000000..4bf04428eb
--- /dev/null
+++ b/src/soc/intel/apollolake/acpi/gpio.asl
@@ -0,0 +1,144 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Intel Corp.
+ * (Written by Lance Zhao <lijian.zhao@intel.com> for 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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/gpio_defs.h>
+
+scope (\_SB) {
+
+	Device (GPO0)
+	{
+		Name (_ADR, 0)
+		Name (_HID, "INT3452")
+		Name (_CID, "INT3452")
+		Name (_DDN, "General Purpose Input/Output (GPIO) Controller - North" )
+		Name (_UID, 1)
+
+		Name (RBUF, ResourceTemplate ()
+		{
+			Memory32Fixed (ReadWrite, 0, 0x4000, RMEM)
+			Interrupt (ResourceConsumer, Level, ActiveLow, Shared, , , )
+			{
+				GPIO_BANK_INT
+			}
+		})
+
+		Method (_CRS, 0x0, NotSerialized)
+		{
+			CreateDwordField (^RBUF, ^RMEM._BAS, RBAS)
+			ShiftLeft (GPIO_NORTH, 16, Local0)
+			Or (CONFIG_IOSF_BASE_ADDRESS, Local0, RBAS)
+			Return (^RBUF)
+		}
+
+		Method (_STA, 0x0, NotSerialized)
+		{
+			Return(0xf)
+		}
+	}
+
+	Device (GPO1)
+	{
+		Name (_ADR, 0)
+		Name (_HID, "INT3452")
+		Name (_CID, "INT3452")
+		Name (_DDN, "General Purpose Input/Output (GPIO) Controller - Northwest" )
+		Name (_UID, 2)
+
+		Name (RBUF, ResourceTemplate ()
+		{
+			Memory32Fixed (ReadWrite, 0, 0x4000, RMEM)
+			Interrupt (ResourceConsumer, Level, ActiveLow, Shared, , , )
+			{
+				GPIO_BANK_INT
+			}
+		})
+
+		Method (_CRS, 0x0, NotSerialized)
+		{
+			CreateDwordField (^RBUF, ^RMEM._BAS, RBAS)
+			ShiftLeft (GPIO_NORTHWEST, 16, Local0)
+			Or (CONFIG_IOSF_BASE_ADDRESS, Local0, RBAS)
+			Return (^RBUF)
+		}
+
+		Method (_STA, 0x0, NotSerialized)
+		{
+			Return(0xf)
+		}
+	}
+
+	Device (GPO2)
+	{
+		Name (_ADR, 0)
+		Name (_HID, "INT3452")
+		Name (_CID, "INT3452")
+		Name (_DDN, "General Purpose Input/Output (GPIO) Controller - West" )
+		Name (_UID, 3)
+
+		Name (RBUF, ResourceTemplate ()
+		{
+			Memory32Fixed (ReadWrite, 0, 0x4000, RMEM)
+			Interrupt (ResourceConsumer, Level, ActiveLow, Shared, , , )
+			{
+				GPIO_BANK_INT
+			}
+		})
+
+		Method (_CRS, 0x0, NotSerialized)
+		{
+			CreateDwordField (^RBUF, ^RMEM._BAS, RBAS)
+			ShiftLeft (GPIO_WEST, 16, Local0)
+			Or (CONFIG_IOSF_BASE_ADDRESS, Local0, RBAS)
+			Return (^RBUF)
+		}
+
+		Method (_STA, 0x0, NotSerialized)
+		{
+			Return(0xf)
+		}
+	}
+
+	Device (GPO3)
+	{
+		Name (_ADR, 0)
+		Name (_HID, "INT3452")
+		Name (_CID, "INT3452")
+		Name (_DDN, "General Purpose Input/Output (GPIO) Controller - Southwest" )
+		Name (_UID, 4)
+
+		Name (RBUF, ResourceTemplate ()
+		{
+			Memory32Fixed (ReadWrite, 0, 0x4000, RMEM)
+			Interrupt (ResourceConsumer, Level, ActiveLow, Shared, , , )
+			{
+				GPIO_BANK_INT
+			}
+		})
+
+		Method (_CRS, 0x0, NotSerialized)
+		{
+			CreateDwordField (^RBUF, ^RMEM._BAS, RBAS)
+			ShiftLeft (GPIO_SOUTHWEST, 16, Local0)
+			Or (CONFIG_IOSF_BASE_ADDRESS, Local0, RBAS)
+			Return (^RBUF)
+		}
+
+		Method (_STA, 0x0, NotSerialized)
+		{
+			Return(0xf)
+		}
+	}
+}
diff --git a/src/soc/intel/apollolake/acpi/soc_int.asl b/src/soc/intel/apollolake/acpi/soc_int.asl
index 7db23ee0d7..c7259d0d7c 100644
--- a/src/soc/intel/apollolake/acpi/soc_int.asl
+++ b/src/soc/intel/apollolake/acpi/soc_int.asl
@@ -24,6 +24,7 @@
 #define UART2_INT	6	/* Need to be shared by PMC and SCC only*/
 #define UART3_INT	7	/* Need to be shared by PMC and SCC only*/
 #define XDCI_INT	13	/* Need to be shared by PMC and SCC only*/
+#define GPIO_BANK_INT	16
 #define NPK_INT		16
 #define PIRQA_INT	16
 #define PIRQB_INT	17
diff --git a/src/soc/intel/apollolake/acpi/southbridge.asl b/src/soc/intel/apollolake/acpi/southbridge.asl
index 46d701328a..0584439a2a 100644
--- a/src/soc/intel/apollolake/acpi/southbridge.asl
+++ b/src/soc/intel/apollolake/acpi/southbridge.asl
@@ -20,3 +20,6 @@
 
 /* PCI IRQ assignment */
 #include "pci_irqs.asl"
+
+/* GPIO controller */
+#include "gpio.asl"