Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:
 "This contains:
   - addition of the Intel MID watchdog
   - removal of W83697HF and W83697UG drivers (code was merged into
     w83627hf_wdt driver)
   - addition of Armada 375/380 SoC support
   - conversion of imx2_wdt to regmap API and to watchdog core API
   - lots of other small improvements and fixes"

[ Wim was also tagged by gmail as a spammer, but not delayed by days
  unlike Ben ]

* git://www.linux-watchdog.org/linux-watchdog: (25 commits)
  x86: intel-mid: add watchdog platform code for Merrifield
  watchdog: add Intel MID watchdog driver support
  watchdog: sp805: Set watchdog_device->timeout from ->set_timeout()
  booke/watchdog: refine and clean up the codes
  watchdog: iop_wdt only builds for mach-iop13xx
  watchdog: Remove drivers for W83697HF and W83697UG
  watchdog: w83627hf_wdt: Add early_disable module parameter
  ARM: mvebu: Add A375/A380 watchdog binding documentation
  watchdog: orion: Add Armada 375/380 SoC support
  watchdog: orion: Introduce per-SoC enabled() function
  watchdog: orion: Introduce per-SoC stop() function
  watchdog: orion: Remove unneeded atomic access
  watchdog: orion: Introduce a SoC-specific RSTOUT mapping
  watchdog: orion: Move the register ioremap'ing to its own function
  watchdog: xilinx: Make of_device_id array const
  watchdog: imx2_wdt: convert to watchdog core api
  watchdog: imx2_wdt: convert to use regmap API.
  watchdog: imx2_wdt: Sort the header files alphabetically
  watchdog: ath79_wdt: switch to clk_prepare/clk_disable
  watchdog: ath79_wdt: avoid spurious restarts on AR934x
  ...

3 files changed, 73 insertions, 27 deletions

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index aa0f5edd8570..d4d418376f99 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -728,33 +728,6 @@ static int powerpc_debugfs_init(void)
 arch_initcall(powerpc_debugfs_init);
 #endif
 
-#ifdef CONFIG_BOOKE_WDT
-extern u32 booke_wdt_enabled;
-extern u32 booke_wdt_period;
-
-/* Checks wdt=x and wdt_period=xx command-line option */
-notrace int __init early_parse_wdt(char *p)
-{
-	if (p && strncmp(p, "0", 1) != 0)
-		booke_wdt_enabled = 1;
-
-	return 0;
-}
-early_param("wdt", early_parse_wdt);
-
-int __init early_parse_wdt_period(char *p)
-{
-	unsigned long ret;
-	if (p) {
-		if (!kstrtol(p, 0, &ret))
-			booke_wdt_period = ret;
-	}
-
-	return 0;
-}
-early_param("wdt_period", early_parse_wdt_period);
-#endif	/* CONFIG_BOOKE_WDT */
-
 void ppc_printk_progress(char *s, unsigned short hex)
 {
 	pr_info("%s\n", s);
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile
index 097e7a7940d8..af9307f2cc28 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_wdt.c b/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
new file mode 100644
index 000000000000..973cf3bfa9fd
--- /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);