7 files changed, 85 insertions, 11 deletions
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile
index 097e7a7940d..af9307f2cc2 100644
--- a/arch/x86/platform/intel-mid/device_libs/Makefile
+++ b/arch/x86/platform/intel-mid/device_libs/Makefile
@@ -20,3 +20,4 @@ obj-$(subst m,y,$(CONFIG_DRM_MEDFIELD)) += platform_tc35876x.o
 obj-$(subst m,y,$(CONFIG_SERIAL_MRST_MAX3110)) += platform_max3111.o
 # MISC Devices
 obj-$(subst m,y,$(CONFIG_KEYBOARD_GPIO)) += platform_gpio_keys.o
+obj-$(subst m,y,$(CONFIG_INTEL_MID_WATCHDOG)) += platform_wdt.o
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_ipc.h b/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
index 8f568dd7960..79bb09d4f71 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
+++ b/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
@@ -12,6 +12,7 @@
 #ifndef _PLATFORM_IPC_H_
 #define _PLATFORM_IPC_H_
 
-extern void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
-			struct devs_id *dev) __attribute__((weak));
+void __init
+ipc_device_handler(struct sfi_device_table_entry *pentry, struct devs_id *dev);
+
 #endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic.h b/arch/x86/platform/intel-mid/device_libs/platform_msic.h
index 917eb56d77d..b7be1d041da 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_msic.h
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic.h
@@ -14,6 +14,6 @@
 
 extern struct intel_msic_platform_data msic_pdata;
 
-extern void *msic_generic_platform_data(void *info,
-			enum intel_msic_block block) __attribute__((weak));
+void *msic_generic_platform_data(void *info, enum intel_msic_block block);
+
 #endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_wdt.c b/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
new file mode 100644
index 00000000000..973cf3bfa9f
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
@@ -0,0 +1,72 @@
+/*
+ * platform_wdt.c: Watchdog platform library file
+ *
+ * (C) Copyright 2014 Intel Corporation
+ * Author: David Cohen <david.a.cohen@linux.intel.com>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/intel-mid_wdt.h>
+#include <asm/intel-mid.h>
+#include <asm/io_apic.h>
+
+#define TANGIER_EXT_TIMER0_MSI 15
+
+static struct platform_device wdt_dev = {
+	.name = "intel_mid_wdt",
+	.id = -1,
+};
+
+static int tangier_probe(struct platform_device *pdev)
+{
+	int ioapic;
+	int irq;
+	struct intel_mid_wdt_pdata *pdata = pdev->dev.platform_data;
+	struct io_apic_irq_attr irq_attr = { 0 };
+
+	if (!pdata)
+		return -EINVAL;
+
+	irq = pdata->irq;
+	ioapic = mp_find_ioapic(irq);
+	if (ioapic >= 0) {
+		int ret;
+		irq_attr.ioapic = ioapic;
+		irq_attr.ioapic_pin = irq;
+		irq_attr.trigger = 1;
+		/* irq_attr.polarity = 0; -> Active high */
+		ret = io_apic_set_pci_routing(NULL, irq, &irq_attr);
+		if (ret)
+			return ret;
+	} else {
+		dev_warn(&pdev->dev, "cannot find interrupt %d in ioapic\n",
+			 irq);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct intel_mid_wdt_pdata tangier_pdata = {
+	.irq = TANGIER_EXT_TIMER0_MSI,
+	.probe = tangier_probe,
+};
+
+static int __init register_mid_wdt(void)
+{
+	if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER) {
+		wdt_dev.dev.platform_data = &tangier_pdata;
+		return platform_device_register(&wdt_dev);
+	}
+
+	return -ENODEV;
+}
+
+rootfs_initcall(register_mid_wdt);
diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
index a537ffc1629..46aa25c8ce0 100644
--- a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
+++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
@@ -14,6 +14,6 @@
 /* For every CPU addition a new get_<cpuname>_ops interface needs
  * to be added.
  */
-extern void * __cpuinit get_penwell_ops(void) __attribute__((weak));
-extern void * __cpuinit get_cloverview_ops(void) __attribute__((weak));
-extern void * __init get_tangier_ops(void) __attribute__((weak));
+extern void *get_penwell_ops(void) __attribute__((weak));
+extern void *get_cloverview_ops(void) __attribute__((weak));
+extern void *get_tangier_ops(void) __attribute__((weak));
diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
index 4f7884eebc1..23381d2174a 100644
--- a/arch/x86/platform/intel-mid/mfld.c
+++ b/arch/x86/platform/intel-mid/mfld.c
@@ -58,18 +58,18 @@ static unsigned long __init mfld_calibrate_tsc(void)
 	return 0;
 }
 
-static void __init penwell_arch_setup()
+static void __init penwell_arch_setup(void)
 {
 	x86_platform.calibrate_tsc = mfld_calibrate_tsc;
 	pm_power_off = mfld_power_off;
 }
 
-void * __cpuinit get_penwell_ops()
+void *get_penwell_ops(void)
 {
 	return &penwell_ops;
 }
 
-void * __cpuinit get_cloverview_ops()
+void *get_cloverview_ops(void)
 {
 	return &penwell_ops;
 }
diff --git a/arch/x86/platform/intel-mid/mrfl.c b/arch/x86/platform/intel-mid/mrfl.c
index 09d10159e7b..aaca91753d3 100644
--- a/arch/x86/platform/intel-mid/mrfl.c
+++ b/arch/x86/platform/intel-mid/mrfl.c
@@ -97,7 +97,7 @@ static struct intel_mid_ops tangier_ops = {
 	.arch_setup = tangier_arch_setup,
 };
 
-void * __cpuinit get_tangier_ops()
+void *get_tangier_ops(void)
 {
 	return &tangier_ops;
 }