From 45f0a85c8258741d11bda25c0a5669c06267204a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 3 Jun 2013 21:49:52 +0200
Subject: PM / Runtime: Rework the "runtime idle" helper routine

The "runtime idle" helper routine, rpm_idle(), currently ignores
return values from .runtime_idle() callbacks executed by it.
However, it turns out that many subsystems use
pm_generic_runtime_idle() which checks the return value of the
driver's callback and executes pm_runtime_suspend() for the device
unless that value is not 0.  If that logic is moved to rpm_idle()
instead, pm_generic_runtime_idle() can be dropped and its users
will not need any .runtime_idle() callbacks any more.

Moreover, the PCI, SCSI, and SATA subsystems' .runtime_idle()
routines, pci_pm_runtime_idle(), scsi_runtime_idle(), and
ata_port_runtime_idle(), respectively, as well as a few drivers'
ones may be simplified if rpm_idle() calls rpm_suspend() after 0 has
been returned by the .runtime_idle() callback executed by it.

To reduce overall code bloat, make the changes described above.

Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
---
 arch/arm/mach-omap2/omap_device.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index e6d230700b2b..e37feb2f05a3 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -591,11 +591,6 @@ static int _od_runtime_suspend(struct device *dev)
 	return ret;
 }
 
-static int _od_runtime_idle(struct device *dev)
-{
-	return pm_generic_runtime_idle(dev);
-}
-
 static int _od_runtime_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -653,7 +648,7 @@ static int _od_resume_noirq(struct device *dev)
 struct dev_pm_domain omap_device_pm_domain = {
 	.ops = {
 		SET_RUNTIME_PM_OPS(_od_runtime_suspend, _od_runtime_resume,
-				   _od_runtime_idle)
+				   NULL)
 		USE_PLATFORM_PM_SLEEP_OPS
 		.suspend_noirq = _od_suspend_noirq,
 		.resume_noirq = _od_resume_noirq,
-- 
cgit v1.2.3


From 3dfc35ffd938abe67f2559db6b517536a207df24 Mon Sep 17 00:00:00 2001
From: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Date: Mon, 27 May 2013 14:09:22 +0300
Subject: PM / AVS: SmartReflex: use omap_sr * for errgen interfaces

SmartReflex driver interface is natively divided to two parts:

- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class

Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.

sr_disable_errgen() and sr_configure_errgen() are interface
functions between SR driver and SR class. They are typically
used by Class driver to configure error generator module during
SmartReflex enable/disable sequence.
Now they take struct omap_sr* as input parameter.

Signed-off-by: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
---
 arch/arm/mach-omap2/smartreflex-class3.c |  4 ++--
 drivers/power/avs/smartreflex.c          | 26 +++++++++++++-------------
 include/linux/power/smartreflex.h        |  4 ++--
 3 files changed, 17 insertions(+), 17 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
index aee3c8940a30..6c26dc15815c 100644
--- a/arch/arm/mach-omap2/smartreflex-class3.c
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -31,7 +31,7 @@ static int sr_class3_enable(struct omap_sr *sr)
 
 static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
 {
-	sr_disable_errgen(sr->voltdm);
+	sr_disable_errgen(sr);
 	omap_vp_disable(sr->voltdm);
 	sr_disable(sr->voltdm);
 	if (is_volt_reset)
@@ -42,7 +42,7 @@ static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
 
 static int sr_class3_configure(struct omap_sr *sr)
 {
-	return sr_configure_errgen(sr->voltdm);
+	return sr_configure_errgen(sr);
 }
 
 /* SR class3 structure */
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 002005ee48d2..fccb62743d19 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -342,9 +342,9 @@ static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
 /* Public Functions */
 
 /**
- * sr_configure_errgen() - Configures the smrtreflex to perform AVS using the
+ * sr_configure_errgen() - Configures the SmartReflex to perform AVS using the
  *			 error generator module.
- * @voltdm:	VDD pointer to which the SR module to be configured belongs to.
+ * @sr:			SR module to be configured.
  *
  * This API is to be called from the smartreflex class driver to
  * configure the error generator module inside the smartreflex module.
@@ -353,17 +353,17 @@ static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
  * SR CLASS 2 can choose between ERROR module and MINMAXAVG
  * module. Returns 0 on success and error value in case of failure.
  */
-int sr_configure_errgen(struct voltagedomain *voltdm)
+int sr_configure_errgen(struct omap_sr *sr)
 {
 	u32 sr_config, sr_errconfig, errconfig_offs;
 	u32 vpboundint_en, vpboundint_st;
 	u32 senp_en = 0, senn_en = 0;
 	u8 senp_shift, senn_shift;
-	struct omap_sr *sr = _sr_lookup(voltdm);
 
-	if (IS_ERR(sr)) {
-		pr_warning("%s: omap_sr struct for voltdm not found\n",	__func__);
-		return PTR_ERR(sr);
+	if (!sr) {
+		pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+			(void *)_RET_IP_);
+		return -EINVAL;
 	}
 
 	if (!sr->clk_length)
@@ -415,22 +415,22 @@ int sr_configure_errgen(struct voltagedomain *voltdm)
 
 /**
  * sr_disable_errgen() - Disables SmartReflex AVS module's errgen component
- * @voltdm:	VDD pointer to which the SR module to be configured belongs to.
+ * @sr:			SR module to be configured.
  *
  * This API is to be called from the smartreflex class driver to
  * disable the error generator module inside the smartreflex module.
  *
  * Returns 0 on success and error value in case of failure.
  */
-int sr_disable_errgen(struct voltagedomain *voltdm)
+int sr_disable_errgen(struct omap_sr *sr)
 {
 	u32 errconfig_offs;
 	u32 vpboundint_en, vpboundint_st;
-	struct omap_sr *sr = _sr_lookup(voltdm);
 
-	if (IS_ERR(sr)) {
-		pr_warning("%s: omap_sr struct for voltdm not found\n",	__func__);
-		return PTR_ERR(sr);
+	if (!sr) {
+		pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+			(void *)_RET_IP_);
+		return -EINVAL;
 	}
 
 	switch (sr->ip_type) {
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index c0f44c2b006d..9c3b9ad17095 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -301,8 +301,8 @@ void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data);
 /* Smartreflex driver hooks to be called from Smartreflex class driver */
 int sr_enable(struct voltagedomain *voltdm, unsigned long volt);
 void sr_disable(struct voltagedomain *voltdm);
-int sr_configure_errgen(struct voltagedomain *voltdm);
-int sr_disable_errgen(struct voltagedomain *voltdm);
+int sr_configure_errgen(struct omap_sr *sr);
+int sr_disable_errgen(struct omap_sr *sr);
 int sr_configure_minmax(struct voltagedomain *voltdm);
 
 /* API to register the smartreflex class driver with the smartreflex driver */
-- 
cgit v1.2.3


From 299066bb376ef7720cc3d8de95d5b967c5446863 Mon Sep 17 00:00:00 2001
From: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Date: Mon, 27 May 2013 14:09:24 +0300
Subject: PM / AVS: SmartReflex: use omap_sr * for enable/disable interface

SmartReflex driver interface is natively divided to two parts:

- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class

Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.

sr_enable() and sr_disable() are interface functions between
SR driver and SR class. They are typically used by Class driver
to enable/disable SmartReflex hardware module.
Now they take struct omap_sr* as input parameter.

Signed-off-by: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
---
 arch/arm/mach-omap2/smartreflex-class3.c |  4 ++--
 drivers/power/avs/smartreflex.c          | 23 +++++++++++------------
 include/linux/power/smartreflex.h        |  4 ++--
 3 files changed, 15 insertions(+), 16 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
index 6c26dc15815c..7a42e1960c3b 100644
--- a/arch/arm/mach-omap2/smartreflex-class3.c
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -26,14 +26,14 @@ static int sr_class3_enable(struct omap_sr *sr)
 	}
 
 	omap_vp_enable(sr->voltdm);
-	return sr_enable(sr->voltdm, volt);
+	return sr_enable(sr, volt);
 }
 
 static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
 {
 	sr_disable_errgen(sr);
 	omap_vp_disable(sr->voltdm);
-	sr_disable(sr->voltdm);
+	sr_disable(sr);
 	if (is_volt_reset)
 		voltdm_reset(sr->voltdm);
 
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 08a8a299f1fd..14cce7addbb9 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -552,7 +552,7 @@ int sr_configure_minmax(struct omap_sr *sr)
 
 /**
  * sr_enable() - Enables the smartreflex module.
- * @voltdm:	VDD pointer to which the SR module to be configured belongs to.
+ * @sr:		pointer to which the SR module to be configured belongs to.
  * @volt:	The voltage at which the Voltage domain associated with
  *		the smartreflex module is operating at.
  *		This is required only to program the correct Ntarget value.
@@ -561,16 +561,16 @@ int sr_configure_minmax(struct omap_sr *sr)
  * enable a smartreflex module. Returns 0 on success. Returns error
  * value if the voltage passed is wrong or if ntarget value is wrong.
  */
-int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
+int sr_enable(struct omap_sr *sr, unsigned long volt)
 {
 	struct omap_volt_data *volt_data;
-	struct omap_sr *sr = _sr_lookup(voltdm);
 	struct omap_sr_nvalue_table *nvalue_row;
 	int ret;
 
-	if (IS_ERR(sr)) {
-		pr_warning("%s: omap_sr struct for voltdm not found\n",	__func__);
-		return PTR_ERR(sr);
+	if (!sr) {
+		pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+			(void *)_RET_IP_);
+		return -EINVAL;
 	}
 
 	volt_data = omap_voltage_get_voltdata(sr->voltdm, volt);
@@ -612,17 +612,16 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
 
 /**
  * sr_disable() - Disables the smartreflex module.
- * @voltdm:	VDD pointer to which the SR module to be configured belongs to.
+ * @sr:		pointer to which the SR module to be configured belongs to.
  *
  * This API is to be called from the smartreflex class driver to
  * disable a smartreflex module.
  */
-void sr_disable(struct voltagedomain *voltdm)
+void sr_disable(struct omap_sr *sr)
 {
-	struct omap_sr *sr = _sr_lookup(voltdm);
-
-	if (IS_ERR(sr)) {
-		pr_warning("%s: omap_sr struct for voltdm not found\n",	__func__);
+	if (!sr) {
+		pr_warn("%s: NULL omap_sr from %pF\n", __func__,
+			(void *)_RET_IP_);
 		return;
 	}
 
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index 648be776b661..d8b187c3925d 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -299,8 +299,8 @@ void omap_sr_disable_reset_volt(struct voltagedomain *voltdm);
 void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data);
 
 /* Smartreflex driver hooks to be called from Smartreflex class driver */
-int sr_enable(struct voltagedomain *voltdm, unsigned long volt);
-void sr_disable(struct voltagedomain *voltdm);
+int sr_enable(struct omap_sr *sr, unsigned long volt);
+void sr_disable(struct omap_sr *sr);
 int sr_configure_errgen(struct omap_sr *sr);
 int sr_disable_errgen(struct omap_sr *sr);
 int sr_configure_minmax(struct omap_sr *sr);
-- 
cgit v1.2.3


From 38ff87f77af0b5a93fc8581cff1d6e5692ab8970 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Sat, 1 Jun 2013 23:39:40 -0700
Subject: sched_clock: Make ARM's sched_clock generic for all architectures

Nothing about the sched_clock implementation in the ARM port is
specific to the architecture. Generalize the code so that other
architectures can use it by selecting GENERIC_SCHED_CLOCK.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[jstultz: Merge minor collisions with other patches in my tree]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 arch/arm/Kconfig                          |   1 +
 arch/arm/common/timer-sp.c                |   2 +-
 arch/arm/include/asm/sched_clock.h        |  16 ---
 arch/arm/kernel/Makefile                  |   2 +-
 arch/arm/kernel/arch_timer.c              |   2 +-
 arch/arm/kernel/sched_clock.c             | 216 ------------------------------
 arch/arm/kernel/time.c                    |   4 +-
 arch/arm/mach-davinci/time.c              |   2 +-
 arch/arm/mach-imx/time.c                  |   2 +-
 arch/arm/mach-integrator/integrator_ap.c  |   2 +-
 arch/arm/mach-ixp4xx/common.c             |   2 +-
 arch/arm/mach-mmp/time.c                  |   2 +-
 arch/arm/mach-msm/timer.c                 |   2 +-
 arch/arm/mach-omap1/time.c                |   2 +-
 arch/arm/mach-omap2/timer.c               |   2 +-
 arch/arm/mach-pxa/time.c                  |   2 +-
 arch/arm/mach-sa1100/time.c               |   2 +-
 arch/arm/mach-u300/timer.c                |   2 +-
 arch/arm/plat-iop/time.c                  |   2 +-
 arch/arm/plat-omap/counter_32k.c          |   2 +-
 arch/arm/plat-orion/time.c                |   2 +-
 arch/arm/plat-samsung/samsung-time.c      |   2 +-
 arch/arm/plat-versatile/sched-clock.c     |   2 +-
 drivers/clocksource/bcm2835_timer.c       |   2 +-
 drivers/clocksource/clksrc-dbx500-prcmu.c |   3 +-
 drivers/clocksource/dw_apb_timer_of.c     |   3 +-
 drivers/clocksource/mxs_timer.c           |   2 +-
 drivers/clocksource/nomadik-mtu.c         |   2 +-
 drivers/clocksource/samsung_pwm_timer.c   |   2 +-
 drivers/clocksource/tegra20_timer.c       |   2 +-
 drivers/clocksource/time-armada-370-xp.c  |   2 +-
 drivers/clocksource/timer-marco.c         |   2 +-
 drivers/clocksource/timer-prima2.c        |   2 +-
 include/linux/sched_clock.h               |  21 +++
 init/Kconfig                              |   3 +
 init/main.c                               |   2 +
 kernel/time/Makefile                      |   1 +
 kernel/time/sched_clock.c                 | 215 +++++++++++++++++++++++++++++
 38 files changed, 273 insertions(+), 266 deletions(-)
 delete mode 100644 arch/arm/include/asm/sched_clock.h
 delete mode 100644 arch/arm/kernel/sched_clock.c
 create mode 100644 include/linux/sched_clock.h
 create mode 100644 kernel/time/sched_clock.c

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 49d993cee512..53d3a356f61f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -14,6 +14,7 @@ config ARM
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
 	select GENERIC_PCI_IOMAP
+	select GENERIC_SCHED_CLOCK
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_IDLE_POLL_SETUP
 	select GENERIC_STRNCPY_FROM_USER
diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c
index ddc740769601..023ee63827a2 100644
--- a/arch/arm/common/timer-sp.c
+++ b/arch/arm/common/timer-sp.c
@@ -28,8 +28,8 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <asm/hardware/arm_timer.h>
 #include <asm/hardware/timer-sp.h>
 
diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h
deleted file mode 100644
index 3d520ddca61b..000000000000
--- a/arch/arm/include/asm/sched_clock.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * sched_clock.h: support for extending counters to full 64-bit ns counter
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef ASM_SCHED_CLOCK
-#define ASM_SCHED_CLOCK
-
-extern void sched_clock_postinit(void);
-extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
-
-extern unsigned long long (*sched_clock_func)(void);
-
-#endif
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 5f3338eacad2..97cb0576d07c 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -16,7 +16,7 @@ CFLAGS_REMOVE_return_address.o = -pg
 # Object file lists.
 
 obj-y		:= elf.o entry-armv.o entry-common.o irq.o opcodes.o \
-		   process.o ptrace.o return_address.o sched_clock.o \
+		   process.o ptrace.o return_address.o \
 		   setup.o signal.o stacktrace.o sys_arm.o time.o traps.o
 
 obj-$(CONFIG_ATAGS)		+= atags_parse.o
diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
index 59dcdced6e30..221f07b11ccb 100644
--- a/arch/arm/kernel/arch_timer.c
+++ b/arch/arm/kernel/arch_timer.c
@@ -11,9 +11,9 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/errno.h>
+#include <linux/sched_clock.h>
 
 #include <asm/delay.h>
-#include <asm/sched_clock.h>
 
 #include <clocksource/arm_arch_timer.h>
 
diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c
deleted file mode 100644
index a781c59b93c0..000000000000
--- a/arch/arm/kernel/sched_clock.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * sched_clock.c: support for extending counters to full 64-bit ns counter
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/clocksource.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-#include <linux/kernel.h>
-#include <linux/moduleparam.h>
-#include <linux/sched.h>
-#include <linux/syscore_ops.h>
-#include <linux/timer.h>
-
-#include <asm/sched_clock.h>
-
-struct clock_data {
-	u64 epoch_ns;
-	u32 epoch_cyc;
-	u32 epoch_cyc_copy;
-	unsigned long rate;
-	u32 mult;
-	u32 shift;
-	bool suspended;
-};
-
-static void sched_clock_poll(unsigned long wrap_ticks);
-static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0);
-static int irqtime = -1;
-
-core_param(irqtime, irqtime, int, 0400);
-
-static struct clock_data cd = {
-	.mult	= NSEC_PER_SEC / HZ,
-};
-
-static u32 __read_mostly sched_clock_mask = 0xffffffff;
-
-static u32 notrace jiffy_sched_clock_read(void)
-{
-	return (u32)(jiffies - INITIAL_JIFFIES);
-}
-
-static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
-
-static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
-{
-	return (cyc * mult) >> shift;
-}
-
-static unsigned long long notrace cyc_to_sched_clock(u32 cyc, u32 mask)
-{
-	u64 epoch_ns;
-	u32 epoch_cyc;
-
-	/*
-	 * Load the epoch_cyc and epoch_ns atomically.  We do this by
-	 * ensuring that we always write epoch_cyc, epoch_ns and
-	 * epoch_cyc_copy in strict order, and read them in strict order.
-	 * If epoch_cyc and epoch_cyc_copy are not equal, then we're in
-	 * the middle of an update, and we should repeat the load.
-	 */
-	do {
-		epoch_cyc = cd.epoch_cyc;
-		smp_rmb();
-		epoch_ns = cd.epoch_ns;
-		smp_rmb();
-	} while (epoch_cyc != cd.epoch_cyc_copy);
-
-	return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, cd.mult, cd.shift);
-}
-
-/*
- * Atomically update the sched_clock epoch.
- */
-static void notrace update_sched_clock(void)
-{
-	unsigned long flags;
-	u32 cyc;
-	u64 ns;
-
-	cyc = read_sched_clock();
-	ns = cd.epoch_ns +
-		cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
-			  cd.mult, cd.shift);
-	/*
-	 * Write epoch_cyc and epoch_ns in a way that the update is
-	 * detectable in cyc_to_fixed_sched_clock().
-	 */
-	raw_local_irq_save(flags);
-	cd.epoch_cyc_copy = cyc;
-	smp_wmb();
-	cd.epoch_ns = ns;
-	smp_wmb();
-	cd.epoch_cyc = cyc;
-	raw_local_irq_restore(flags);
-}
-
-static void sched_clock_poll(unsigned long wrap_ticks)
-{
-	mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks));
-	update_sched_clock();
-}
-
-void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
-{
-	unsigned long r, w;
-	u64 res, wrap;
-	char r_unit;
-
-	if (cd.rate > rate)
-		return;
-
-	BUG_ON(bits > 32);
-	WARN_ON(!irqs_disabled());
-	read_sched_clock = read;
-	sched_clock_mask = (1 << bits) - 1;
-	cd.rate = rate;
-
-	/* calculate the mult/shift to convert counter ticks to ns. */
-	clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
-
-	r = rate;
-	if (r >= 4000000) {
-		r /= 1000000;
-		r_unit = 'M';
-	} else if (r >= 1000) {
-		r /= 1000;
-		r_unit = 'k';
-	} else
-		r_unit = ' ';
-
-	/* calculate how many ns until we wrap */
-	wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
-	do_div(wrap, NSEC_PER_MSEC);
-	w = wrap;
-
-	/* calculate the ns resolution of this counter */
-	res = cyc_to_ns(1ULL, cd.mult, cd.shift);
-	pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n",
-		bits, r, r_unit, res, w);
-
-	/*
-	 * Start the timer to keep sched_clock() properly updated and
-	 * sets the initial epoch.
-	 */
-	sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
-	update_sched_clock();
-
-	/*
-	 * Ensure that sched_clock() starts off at 0ns
-	 */
-	cd.epoch_ns = 0;
-
-	/* Enable IRQ time accounting if we have a fast enough sched_clock */
-	if (irqtime > 0 || (irqtime == -1 && rate >= 1000000))
-		enable_sched_clock_irqtime();
-
-	pr_debug("Registered %pF as sched_clock source\n", read);
-}
-
-static unsigned long long notrace sched_clock_32(void)
-{
-	u32 cyc = read_sched_clock();
-	return cyc_to_sched_clock(cyc, sched_clock_mask);
-}
-
-unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32;
-
-unsigned long long notrace sched_clock(void)
-{
-	if (cd.suspended)
-		return cd.epoch_ns;
-
-	return sched_clock_func();
-}
-
-void __init sched_clock_postinit(void)
-{
-	/*
-	 * If no sched_clock function has been provided at that point,
-	 * make it the final one one.
-	 */
-	if (read_sched_clock == jiffy_sched_clock_read)
-		setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
-
-	sched_clock_poll(sched_clock_timer.data);
-}
-
-static int sched_clock_suspend(void)
-{
-	sched_clock_poll(sched_clock_timer.data);
-	cd.suspended = true;
-	return 0;
-}
-
-static void sched_clock_resume(void)
-{
-	cd.epoch_cyc = read_sched_clock();
-	cd.epoch_cyc_copy = cd.epoch_cyc;
-	cd.suspended = false;
-}
-
-static struct syscore_ops sched_clock_ops = {
-	.suspend = sched_clock_suspend,
-	.resume = sched_clock_resume,
-};
-
-static int __init sched_clock_syscore_init(void)
-{
-	register_syscore_ops(&sched_clock_ops);
-	return 0;
-}
-device_initcall(sched_clock_syscore_init);
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index abff4e9aaee0..98aee3258398 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -24,9 +24,9 @@
 #include <linux/timer.h>
 #include <linux/clocksource.h>
 #include <linux/irq.h>
+#include <linux/sched_clock.h>
 
 #include <asm/thread_info.h>
-#include <asm/sched_clock.h>
 #include <asm/stacktrace.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
@@ -120,6 +120,4 @@ void __init time_init(void)
 		machine_desc->init_time();
 	else
 		clocksource_of_init();
-
-	sched_clock_postinit();
 }
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index bad361ec1666..7a55b5c95971 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -18,8 +18,8 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/time.h>
 
diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
index fea91313678b..cd46529e9eaa 100644
--- a/arch/arm/mach-imx/time.c
+++ b/arch/arm/mach-imx/time.c
@@ -26,8 +26,8 @@
 #include <linux/clockchips.h>
 #include <linux/clk.h>
 #include <linux/err.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <asm/mach/time.h>
 
 #include "common.h"
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index b23c8e4f28e8..aa4346227c41 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -41,6 +41,7 @@
 #include <linux/stat.h>
 #include <linux/sys_soc.h>
 #include <linux/termios.h>
+#include <linux/sched_clock.h>
 #include <video/vga.h>
 
 #include <mach/hardware.h>
@@ -49,7 +50,6 @@
 #include <asm/setup.h>
 #include <asm/param.h>		/* HZ */
 #include <asm/mach-types.h>
-#include <asm/sched_clock.h>
 
 #include <mach/lm.h>
 #include <mach/irqs.h>
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 6600cff6bd92..58307cff1f18 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -30,6 +30,7 @@
 #include <linux/export.h>
 #include <linux/gpio.h>
 #include <linux/cpu.h>
+#include <linux/sched_clock.h>
 
 #include <mach/udc.h>
 #include <mach/hardware.h>
@@ -38,7 +39,6 @@
 #include <asm/pgtable.h>
 #include <asm/page.h>
 #include <asm/irq.h>
-#include <asm/sched_clock.h>
 #include <asm/system_misc.h>
 
 #include <asm/mach/map.h>
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index 86a18b3d252e..7ac41e83cfef 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -28,8 +28,8 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <mach/addr-map.h>
 #include <mach/regs-timers.h>
 #include <mach/regs-apbc.h>
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 284313f3e02c..b6418fd5fe0d 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -23,10 +23,10 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
 #include <asm/localtimer.h>
-#include <asm/sched_clock.h>
 
 #include "common.h"
 
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index 726ec23d29c7..80603d2fef77 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -43,9 +43,9 @@
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/io.h>
+#include <linux/sched_clock.h>
 
 #include <asm/irq.h>
-#include <asm/sched_clock.h>
 
 #include <mach/hardware.h>
 #include <asm/mach/irq.h>
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index f8b23b8040d9..4c069b0cab21 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -41,10 +41,10 @@
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/dmtimer-omap.h>
+#include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
 #include <asm/smp_twd.h>
-#include <asm/sched_clock.h>
 
 #include "omap_hwmod.h"
 #include "omap_device.h"
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index 8f1ee92aea30..9aa852a8fab9 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -16,11 +16,11 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/clockchips.h>
+#include <linux/sched_clock.h>
 
 #include <asm/div64.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/time.h>
-#include <asm/sched_clock.h>
 #include <mach/regs-ost.h>
 #include <mach/irqs.h>
 
diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c
index a59a13a665a6..713c86cd3d64 100644
--- a/arch/arm/mach-sa1100/time.c
+++ b/arch/arm/mach-sa1100/time.c
@@ -14,9 +14,9 @@
 #include <linux/irq.h>
 #include <linux/timex.h>
 #include <linux/clockchips.h>
+#include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
-#include <asm/sched_clock.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 
diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c
index d9e73209c9b8..af771b76fe1c 100644
--- a/arch/arm/mach-u300/timer.c
+++ b/arch/arm/mach-u300/timer.c
@@ -18,12 +18,12 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/irq.h>
+#include <linux/sched_clock.h>
 
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 
 /* Generic stuff */
-#include <asm/sched_clock.h>
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
 
diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c
index 837a2d52e9db..29606bd75f3f 100644
--- a/arch/arm/plat-iop/time.c
+++ b/arch/arm/plat-iop/time.c
@@ -22,9 +22,9 @@
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/export.h>
+#include <linux/sched_clock.h>
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/sched_clock.h>
 #include <asm/uaccess.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/time.h>
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c
index 5b0b86bb34bb..d9bc98eb2a6b 100644
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@ -18,9 +18,9 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/clocksource.h>
+#include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
-#include <asm/sched_clock.h>
 
 #include <plat/counter-32k.h>
 
diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index 5d5ac0f05422..9d2b2ac74938 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -16,7 +16,7 @@
 #include <linux/clockchips.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
 
 /*
  * MBus bridge block registers.
diff --git a/arch/arm/plat-samsung/samsung-time.c b/arch/arm/plat-samsung/samsung-time.c
index f899cbc9b288..2957075ca836 100644
--- a/arch/arm/plat-samsung/samsung-time.c
+++ b/arch/arm/plat-samsung/samsung-time.c
@@ -15,12 +15,12 @@
 #include <linux/clk.h>
 #include <linux/clockchips.h>
 #include <linux/platform_device.h>
+#include <linux/sched_clock.h>
 
 #include <asm/smp_twd.h>
 #include <asm/mach/time.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
-#include <asm/sched_clock.h>
 
 #include <mach/map.h>
 #include <plat/devs.h>
diff --git a/arch/arm/plat-versatile/sched-clock.c b/arch/arm/plat-versatile/sched-clock.c
index b33b74c87232..51b109e3b6c3 100644
--- a/arch/arm/plat-versatile/sched-clock.c
+++ b/arch/arm/plat-versatile/sched-clock.c
@@ -20,8 +20,8 @@
  */
 #include <linux/kernel.h>
 #include <linux/io.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <plat/sched_clock.h>
 
 static void __iomem *ctr;
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index 766611d29945..07ea7ce900dc 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -28,8 +28,8 @@
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <asm/irq.h>
 
 #define REG_CONTROL	0x00
diff --git a/drivers/clocksource/clksrc-dbx500-prcmu.c b/drivers/clocksource/clksrc-dbx500-prcmu.c
index 54f3d119d99c..0a7fb2440e29 100644
--- a/drivers/clocksource/clksrc-dbx500-prcmu.c
+++ b/drivers/clocksource/clksrc-dbx500-prcmu.c
@@ -14,8 +14,7 @@
  */
 #include <linux/clockchips.h>
 #include <linux/clksrc-dbx500-prcmu.h>
-
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
 
 #define RATE_32K		32768
 
diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index af13b8559b61..a97b4065dacf 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -20,8 +20,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
 
 static void timer_get_base_and_rate(struct device_node *np,
 				    void __iomem **base, u32 *rate)
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index 02af4204af86..0f5e65f74dc3 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -29,9 +29,9 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/stmp_device.h>
+#include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
-#include <asm/sched_clock.h>
 
 /*
  * There are 2 versions of the timrot on Freescale MXS-based SoCs.
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index e405531e1cc5..8864c17841c8 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -18,8 +18,8 @@
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/platform_data/clocksource-nomadik-mtu.h>
+#include <linux/sched_clock.h>
 #include <asm/mach/time.h>
-#include <asm/sched_clock.h>
 
 /*
  * The MTU device hosts four different counters, with 4 set of
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index 0234c8d2c8f2..584b5472eea3 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -21,10 +21,10 @@
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/sched_clock.h>
 
 #include <clocksource/samsung_pwm.h>
 
-#include <asm/sched_clock.h>
 
 /*
  * Clocksource driver
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index ae877b021b54..93961703b887 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -26,10 +26,10 @@
 #include <linux/io.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
 #include <asm/smp_twd.h>
-#include <asm/sched_clock.h>
 
 #define RTC_SECONDS            0x08
 #define RTC_SHADOW_SECONDS     0x0c
diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c
index 47a673070d70..efdca3263afe 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -27,8 +27,8 @@
 #include <linux/of_address.h>
 #include <linux/irq.h>
 #include <linux/module.h>
+#include <linux/sched_clock.h>
 
-#include <asm/sched_clock.h>
 #include <asm/localtimer.h>
 #include <linux/percpu.h>
 /*
diff --git a/drivers/clocksource/timer-marco.c b/drivers/clocksource/timer-marco.c
index 97738dbf3e3b..e5dc9129ca26 100644
--- a/drivers/clocksource/timer-marco.c
+++ b/drivers/clocksource/timer-marco.c
@@ -17,7 +17,7 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
 #include <asm/localtimer.h>
 #include <asm/mach/time.h>
 
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index 760882665d7a..ef3cfb269d8b 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -18,7 +18,7 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
 #include <asm/mach/time.h>
 
 #define SIRFSOC_TIMER_COUNTER_LO	0x0000
diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h
new file mode 100644
index 000000000000..fa7922c80a41
--- /dev/null
+++ b/include/linux/sched_clock.h
@@ -0,0 +1,21 @@
+/*
+ * sched_clock.h: support for extending counters to full 64-bit ns counter
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef LINUX_SCHED_CLOCK
+#define LINUX_SCHED_CLOCK
+
+#ifdef CONFIG_GENERIC_SCHED_CLOCK
+extern void sched_clock_postinit(void);
+#else
+static inline void sched_clock_postinit(void) { }
+#endif
+
+extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
+
+extern unsigned long long (*sched_clock_func)(void);
+
+#endif
diff --git a/init/Kconfig b/init/Kconfig
index 9d3a7887a6d3..1a3f93329a67 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -757,6 +757,9 @@ config LOG_BUF_SHIFT
 config HAVE_UNSTABLE_SCHED_CLOCK
 	bool
 
+config GENERIC_SCHED_CLOCK
+	bool
+
 #
 # For architectures that want to enable the support for NUMA-affine scheduler
 # balancing logic:
diff --git a/init/main.c b/init/main.c
index 9484f4ba88d0..bef4a6ac7c76 100644
--- a/init/main.c
+++ b/init/main.c
@@ -74,6 +74,7 @@
 #include <linux/ptrace.h>
 #include <linux/blkdev.h>
 #include <linux/elevator.h>
+#include <linux/sched_clock.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -555,6 +556,7 @@ asmlinkage void __init start_kernel(void)
 	softirq_init();
 	timekeeping_init();
 	time_init();
+	sched_clock_postinit();
 	profile_init();
 	call_function_init();
 	WARN(!irqs_disabled(), "Interrupts were enabled early\n");
diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index d52ac8bf0006..9250130646f5 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -4,6 +4,7 @@ obj-y += timeconv.o posix-clock.o alarmtimer.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD)		+= clockevents.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= tick-common.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)	+= tick-broadcast.o
+obj-$(CONFIG_GENERIC_SCHED_CLOCK)		+= sched_clock.o
 obj-$(CONFIG_TICK_ONESHOT)			+= tick-oneshot.o
 obj-$(CONFIG_TICK_ONESHOT)			+= tick-sched.o
 obj-$(CONFIG_TIMER_STATS)			+= timer_stats.o
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
new file mode 100644
index 000000000000..aad1ae6077ef
--- /dev/null
+++ b/kernel/time/sched_clock.c
@@ -0,0 +1,215 @@
+/*
+ * sched_clock.c: support for extending counters to full 64-bit ns counter
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clocksource.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/moduleparam.h>
+#include <linux/sched.h>
+#include <linux/syscore_ops.h>
+#include <linux/timer.h>
+#include <linux/sched_clock.h>
+
+struct clock_data {
+	u64 epoch_ns;
+	u32 epoch_cyc;
+	u32 epoch_cyc_copy;
+	unsigned long rate;
+	u32 mult;
+	u32 shift;
+	bool suspended;
+};
+
+static void sched_clock_poll(unsigned long wrap_ticks);
+static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0);
+static int irqtime = -1;
+
+core_param(irqtime, irqtime, int, 0400);
+
+static struct clock_data cd = {
+	.mult	= NSEC_PER_SEC / HZ,
+};
+
+static u32 __read_mostly sched_clock_mask = 0xffffffff;
+
+static u32 notrace jiffy_sched_clock_read(void)
+{
+	return (u32)(jiffies - INITIAL_JIFFIES);
+}
+
+static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
+
+static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
+{
+	return (cyc * mult) >> shift;
+}
+
+static unsigned long long notrace cyc_to_sched_clock(u32 cyc, u32 mask)
+{
+	u64 epoch_ns;
+	u32 epoch_cyc;
+
+	/*
+	 * Load the epoch_cyc and epoch_ns atomically.  We do this by
+	 * ensuring that we always write epoch_cyc, epoch_ns and
+	 * epoch_cyc_copy in strict order, and read them in strict order.
+	 * If epoch_cyc and epoch_cyc_copy are not equal, then we're in
+	 * the middle of an update, and we should repeat the load.
+	 */
+	do {
+		epoch_cyc = cd.epoch_cyc;
+		smp_rmb();
+		epoch_ns = cd.epoch_ns;
+		smp_rmb();
+	} while (epoch_cyc != cd.epoch_cyc_copy);
+
+	return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, cd.mult, cd.shift);
+}
+
+/*
+ * Atomically update the sched_clock epoch.
+ */
+static void notrace update_sched_clock(void)
+{
+	unsigned long flags;
+	u32 cyc;
+	u64 ns;
+
+	cyc = read_sched_clock();
+	ns = cd.epoch_ns +
+		cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
+			  cd.mult, cd.shift);
+	/*
+	 * Write epoch_cyc and epoch_ns in a way that the update is
+	 * detectable in cyc_to_fixed_sched_clock().
+	 */
+	raw_local_irq_save(flags);
+	cd.epoch_cyc_copy = cyc;
+	smp_wmb();
+	cd.epoch_ns = ns;
+	smp_wmb();
+	cd.epoch_cyc = cyc;
+	raw_local_irq_restore(flags);
+}
+
+static void sched_clock_poll(unsigned long wrap_ticks)
+{
+	mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks));
+	update_sched_clock();
+}
+
+void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
+{
+	unsigned long r, w;
+	u64 res, wrap;
+	char r_unit;
+
+	if (cd.rate > rate)
+		return;
+
+	BUG_ON(bits > 32);
+	WARN_ON(!irqs_disabled());
+	read_sched_clock = read;
+	sched_clock_mask = (1 << bits) - 1;
+	cd.rate = rate;
+
+	/* calculate the mult/shift to convert counter ticks to ns. */
+	clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
+
+	r = rate;
+	if (r >= 4000000) {
+		r /= 1000000;
+		r_unit = 'M';
+	} else if (r >= 1000) {
+		r /= 1000;
+		r_unit = 'k';
+	} else
+		r_unit = ' ';
+
+	/* calculate how many ns until we wrap */
+	wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
+	do_div(wrap, NSEC_PER_MSEC);
+	w = wrap;
+
+	/* calculate the ns resolution of this counter */
+	res = cyc_to_ns(1ULL, cd.mult, cd.shift);
+	pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n",
+		bits, r, r_unit, res, w);
+
+	/*
+	 * Start the timer to keep sched_clock() properly updated and
+	 * sets the initial epoch.
+	 */
+	sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
+	update_sched_clock();
+
+	/*
+	 * Ensure that sched_clock() starts off at 0ns
+	 */
+	cd.epoch_ns = 0;
+
+	/* Enable IRQ time accounting if we have a fast enough sched_clock */
+	if (irqtime > 0 || (irqtime == -1 && rate >= 1000000))
+		enable_sched_clock_irqtime();
+
+	pr_debug("Registered %pF as sched_clock source\n", read);
+}
+
+static unsigned long long notrace sched_clock_32(void)
+{
+	u32 cyc = read_sched_clock();
+	return cyc_to_sched_clock(cyc, sched_clock_mask);
+}
+
+unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32;
+
+unsigned long long notrace sched_clock(void)
+{
+	if (cd.suspended)
+		return cd.epoch_ns;
+
+	return sched_clock_func();
+}
+
+void __init sched_clock_postinit(void)
+{
+	/*
+	 * If no sched_clock function has been provided at that point,
+	 * make it the final one one.
+	 */
+	if (read_sched_clock == jiffy_sched_clock_read)
+		setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
+
+	sched_clock_poll(sched_clock_timer.data);
+}
+
+static int sched_clock_suspend(void)
+{
+	sched_clock_poll(sched_clock_timer.data);
+	cd.suspended = true;
+	return 0;
+}
+
+static void sched_clock_resume(void)
+{
+	cd.epoch_cyc = read_sched_clock();
+	cd.epoch_cyc_copy = cd.epoch_cyc;
+	cd.suspended = false;
+}
+
+static struct syscore_ops sched_clock_ops = {
+	.suspend = sched_clock_suspend,
+	.resume = sched_clock_resume,
+};
+
+static int __init sched_clock_syscore_init(void)
+{
+	register_syscore_ops(&sched_clock_ops);
+	return 0;
+}
+device_initcall(sched_clock_syscore_init);
-- 
cgit v1.2.3


From 37bd6ca8ab6c103603e04e320d3debeb4596e481 Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Tue, 28 May 2013 11:54:48 +0530
Subject: ARM: OMAP2+: timer: initialize before using oh_name

of_property_read_string_index(...,&oh_name) in omap_dm_timer_init_one
does not alter the value of 'oh_name' even if the relevant function
fails and as 'oh_name' in stack may have a non-zero value, it would
be misunderstood by timer code that DT has specified "ti,hwmod"
property for timer. 'oh_name' in this scenario would be a junk value,
this would result in module not being enabled by hwmod API's for
timer, and in turn crash.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Jon Hunter <jgchunter@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 3bdb0fb02028..5f148e721790 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -220,7 +220,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
 					 int posted)
 {
 	char name[10]; /* 10 = sizeof("gptXX_Xck0") */
-	const char *oh_name;
+	const char *oh_name = NULL;
 	struct device_node *np;
 	struct omap_hwmod *oh;
 	struct resource irq, mem;
-- 
cgit v1.2.3


From b46355a920a3dbdce7365d2e39eefd6c7b87c22a Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 26 Jun 2013 09:39:46 -0500
Subject: ARM: OMAP4: sleep: build OMAP4 specific functions only for OMAP4
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

CPU sleep and resume functions for Cortex-A9 based OMAP4 and
Cortex-A15 based OMAP5 are different. Hence, even though we reuse
most of the remaining file as part of OMAP4/5 consolidation, build
OMAP4 specific sleep/resume operations only for OMAP4. SCU is not used
OMAP5.

This fixes the following build failure with OMAP5 only build:
arch/arm/mach-omap2/built-in.o: In function `scu_gp_set':
arch/arm/mach-omap2/sleep44xx.S:132: undefined reference to `scu_power_mode'
arch/arm/mach-omap2/built-in.o: In function `scu_gp_clear':
arch/arm/mach-omap2/sleep44xx.S:229: undefined reference to `scu_power_mode'

Reported-by: Pekon Gupta <pekon@ti.com>
Reported-by: Vincent Stehlé <v-stehle@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/sleep44xx.S | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S
index 88ff83a0942e..9086ce03ae12 100644
--- a/arch/arm/mach-omap2/sleep44xx.S
+++ b/arch/arm/mach-omap2/sleep44xx.S
@@ -34,6 +34,8 @@ ppa_zero_params:
 ppa_por_params:
 	.word		1, 0
 
+#ifdef CONFIG_ARCH_OMAP4
+
 /*
  * =============================
  * == CPU suspend finisher ==
@@ -326,7 +328,9 @@ skip_l2en:
 
 	b	cpu_resume			@ Jump to generic resume
 ENDPROC(omap4_cpu_resume)
-#endif
+#endif	/* CONFIG_ARCH_OMAP4 */
+
+#endif	/* defined(CONFIG_SMP) && defined(CONFIG_PM) */
 
 #ifndef CONFIG_OMAP4_ERRATA_I688
 ENTRY(omap_bus_sync)
-- 
cgit v1.2.3


From 62618c17e077b22bb12bdf754ca5bf89f2ae4dcd Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 19 Jun 2013 15:52:12 -0400
Subject: ARM: OMAP5: Enable Cortex A15 errata 798181

ARM errata 798181 is applicable for OMAP5 based devices. So enable
the same in the build. Errata extract and workaround information
is as below.

On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
adequately shooting down all use of the old entries. The
ARM_ERRATA_798181 option enables the Linux kernel workaround
for this erratum which sends an IPI to the CPUs that are running
the same ASID as the one being invalidated.

Cc: Tony Lindgren <tony@atomide.com>

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index c7b32a966f67..e658f7a272e4 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -114,6 +114,7 @@ config SOC_OMAP5
 	select HAVE_SMP
 	select COMMON_CLK
 	select HAVE_ARM_ARCH_TIMER
+	select ARM_ERRATA_798181
 
 comment "OMAP Core Type"
 	depends on ARCH_OMAP2
-- 
cgit v1.2.3


From 9847bd481084249b30308776ecf660b486a6c3d8 Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Thu, 30 May 2013 13:20:23 +0200
Subject: ARM: OMAP2+: Remove obsolete Makefile line

The OMAP runtime PM implementation was removed in v3.0. But one Makefile
line, which was used to tweak CFLAGS, was overlooked. Remove it too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Makefile | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index ea5a27ff9941..d4f671547c37 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -95,10 +95,6 @@ obj-$(CONFIG_POWER_AVS_OMAP_CLASS3)    += smartreflex-class3.o
 AFLAGS_sleep24xx.o			:=-Wa,-march=armv6
 AFLAGS_sleep34xx.o			:=-Wa,-march=armv7-a$(plus_sec)
 
-ifeq ($(CONFIG_PM_VERBOSE),y)
-CFLAGS_pm_bus.o				+= -DDEBUG
-endif
-
 endif
 
 ifeq ($(CONFIG_CPU_IDLE),y)
-- 
cgit v1.2.3


From 1261674a2dded2b5b055f51fb44677a8654d3f06 Mon Sep 17 00:00:00 2001
From: Thomas Meyer <thomas@m3y3r.de>
Date: Sat, 1 Jun 2013 11:44:44 +0200
Subject: ARM: OMAP2+: Cocci spatch "ptr_ret.spatch"

Cocci spatch "ptr_ret.spatch"

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/devices.c | 4 ++--
 arch/arm/mach-omap2/fb.c      | 5 +----
 arch/arm/mach-omap2/gpmc.c    | 2 +-
 arch/arm/mach-omap2/pmu.c     | 5 +----
 4 files changed, 5 insertions(+), 11 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index aef96e45cb20..c3bc58b88fa6 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -66,7 +66,7 @@ static int __init omap3_l3_init(void)
 
 	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
 
-	return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
+	return PTR_RET(pdev);
 }
 omap_postcore_initcall(omap3_l3_init);
 
@@ -100,7 +100,7 @@ static int __init omap4_l3_init(void)
 
 	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
 
-	return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
+	return PTR_RET(pdev);
 }
 omap_postcore_initcall(omap4_l3_init);
 
diff --git a/arch/arm/mach-omap2/fb.c b/arch/arm/mach-omap2/fb.c
index 190ae493c6ef..2ca33cc0c484 100644
--- a/arch/arm/mach-omap2/fb.c
+++ b/arch/arm/mach-omap2/fb.c
@@ -83,10 +83,7 @@ static int __init omap_init_vrfb(void)
 	pdev = platform_device_register_resndata(NULL, "omapvrfb", -1,
 			res, num_res, NULL, 0);
 
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
-	else
-		return 0;
+	return PTR_RET(pdev);
 }
 
 omap_arch_initcall(omap_init_vrfb);
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 1c7969e965d7..f3fdd6afa213 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1734,7 +1734,7 @@ static int __init omap_gpmc_init(void)
 	pdev = omap_device_build(DEVICE_NAME, -1, oh, NULL, 0);
 	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
 
-	return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
+	return PTR_RET(pdev);
 }
 omap_postcore_initcall(omap_gpmc_init);
 
diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c
index 9ace8eae7ee8..33c8846b4193 100644
--- a/arch/arm/mach-omap2/pmu.c
+++ b/arch/arm/mach-omap2/pmu.c
@@ -54,10 +54,7 @@ static int __init omap2_init_pmu(unsigned oh_num, char *oh_names[])
 	WARN(IS_ERR(omap_pmu_dev), "Can't build omap_device for %s.\n",
 	     dev_name);
 
-	if (IS_ERR(omap_pmu_dev))
-		return PTR_ERR(omap_pmu_dev);
-
-	return 0;
+	return PTR_RET(omap_pmu_dev);
 }
 
 static int __init omap_init_pmu(void)
-- 
cgit v1.2.3


From ea2409bab7ee7c309e558f257a3b6b7e8233f209 Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Mon, 1 Jul 2013 23:15:04 +0200
Subject: ARM: OMAP2+: N900: enable N900-specific drivers even if device tree
 is enabled

We still need video & sound drivers with device tree enabled.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-rx51-video.c | 2 +-
 sound/soc/omap/rx51.c                  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/board-rx51-video.c b/arch/arm/mach-omap2/board-rx51-video.c
index bd74f9f6063b..bdd1e3a179e1 100644
--- a/arch/arm/mach-omap2/board-rx51-video.c
+++ b/arch/arm/mach-omap2/board-rx51-video.c
@@ -61,7 +61,7 @@ static struct omap_dss_board_info rx51_dss_board_info = {
 
 static int __init rx51_video_init(void)
 {
-	if (!machine_is_nokia_rx51())
+	if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 		return 0;
 
 	if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c
index 249cd230ad8f..611179c3bca4 100644
--- a/sound/soc/omap/rx51.c
+++ b/sound/soc/omap/rx51.c
@@ -396,7 +396,7 @@ static int __init rx51_soc_init(void)
 {
 	int err;
 
-	if (!machine_is_nokia_rx51())
+	if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 		return -ENODEV;
 
 	err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
-- 
cgit v1.2.3


From e94eb1ac8ef14ae6a745815d2c184225febfd189 Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Date: Wed, 19 Jun 2013 18:24:43 +0200
Subject: ARM: OMAP3: igep0020: Set DSS pins in correct mux mode.

Platform code used to depend on bootloadres for correctly setting the mux
pin modes. But bootloaders should only set the minimum required mux pins.
So, DSS mux pins are not set in U-Boot anymore and video display is broken
on IGEPv2 when booting with newer U-Boot versions.

Setup the DSS pin muxes to enable display functionality.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-igep0020.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index b54562d1235e..87e65dde8e13 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -553,6 +553,37 @@ static struct usbhs_omap_platform_data igep3_usbhs_bdata __initdata = {
 
 #ifdef CONFIG_OMAP_MUX
 static struct omap_board_mux board_mux[] __initdata = {
+	/* Display Sub System */
+	OMAP3_MUX(DSS_PCLK, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_HSYNC, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_VSYNC, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_ACBIAS, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA8, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA9, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA10, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA11, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA12, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA13, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA14, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA15, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA16, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA17, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA18, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA19, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA20, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA21, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA22, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	OMAP3_MUX(DSS_DATA23, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
+	/* TFP410 PanelBus DVI Transmitte (GPIO_170) */
+	OMAP3_MUX(HDQ_SIO, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 	/* SMSC9221 LAN Controller ETH IRQ (GPIO_176) */
 	OMAP3_MUX(MCSPI1_CS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
-- 
cgit v1.2.3


From 7f161ce76d356c496af6ef5ee3a896d4bf18e3eb Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 20 Jun 2013 08:01:05 +0800
Subject: ARM: OMAP2+: devices: remove duplicated include from devices.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/devices.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index c3bc58b88fa6..3c1279f27d1f 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -15,7 +15,6 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/err.h>
-#include <linux/gpio.h>
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/pinctrl/machine.h>
-- 
cgit v1.2.3


From 896eba3ba41e1a978e9e47cf2837ef8963996bca Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 3 Jun 2013 15:55:41 +0200
Subject: ARM: omap5: omap5 has SCU and TWD

These are selected by omap4 but used in common omap4/5
SMP code, so building an omap5-only kernel is actually
broken without this patch.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 1fdb46216590..1f8127afa744 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -110,6 +110,8 @@ config SOC_OMAP5
 	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select CPU_V7
+	select HAVE_ARM_SCU if SMP
+	select HAVE_ARM_TWD if LOCAL_TIMERS
 	select HAVE_SMP
 	select COMMON_CLK
 	select HAVE_ARM_ARCH_TIMER
-- 
cgit v1.2.3


From 59d92875a6d9f056233fafd6abd41f86eba931ef Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 1 May 2013 00:02:26 +0200
Subject: ARM: OMAP: build mach-omap code only if needed

If we build a kernel with CONFIG_ARCH_OMAP2PLUS enabled but all of the
individual SoCs disabled, we run into a large number of link errors
because if incorrect dependencies:

arch/arm/mach-omap2/built-in.o: In function `_add_initiator_dep':
arch/arm/mach-omap2/omap_hwmod.c:691: undefined reference to `clkdm_add_sleepdep' arch/arm/mach-omap2/built-in.o: In function `_del_initiator_dep':
arch/arm/mach-omap2/omap_hwmod.c:720: undefined reference to `clkdm_del_sleepdep' arch/arm/mach-omap2/built-in.o: In function `_enable':
arch/arm/mach-omap2/omap_hwmod.c:2145: undefined reference to `clkdm_in_hwsup'
arch/arm/mach-omap2/omap_hwmod.c:2147: undefined reference to `clkdm_hwmod_enable'
arch/arm/mach-omap2/omap_hwmod.c:2191: undefined reference to `clkdm_hwmod_disable'
arch/arm/mach-omap2/omap_hwmod.c:2146: undefined reference to `clkdm_missing_idle_reporting' arch/arm/mach-omap2/built-in.o: In function `_idle':
arch/arm/mach-omap2/omap_hwmod.c:2235: undefined reference to `clkdm_hwmod_disable' arch/arm/mach-omap2/built-in.o: In function `_shutdown':
arch/arm/mach-omap2/omap_hwmod.c:2338: undefined reference to `clkdm_hwmod_disable' arch/arm/mach-omap2/built-in.o: In function `omap_hwmod_get_context_loss_count':
arch/arm/mach-omap2/omap_hwmod.c:4071: undefined reference to `pwrdm_get_context_loss_count' arch/arm/mach-omap2/built-in.o: In function `omap_pm_clkdms_setup':
arch/arm/mach-omap2/pm.c:114: undefined reference to `clkdm_allow_idle'
arch/arm/mach-omap2/pm.c:117: undefined reference to `clkdm_sleep' arch/arm/mach-omap2/built-in.o: In function `omap2_common_pm_late_init':
arch/arm/mach-omap2/pm.c:294: undefined reference to `omap_voltage_late_init' arch/arm/mach-omap2/built-in.o: In function `omap2_gpio_dev_init':
arch/arm/mach-omap2/gpio.c:133: undefined reference to `pwrdm_can_ever_lose_context'

We can avoid this if we make CONFIG_ARCH_OMAP2PLUS a silent option that
gets enabled any time that one of the SoC versions is enabled.

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/configs/omap2plus_defconfig |   4 +
 arch/arm/mach-omap2/Kconfig          | 148 +++++++++++++++++------------------
 2 files changed, 78 insertions(+), 74 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 2ac0ffb12f03..f9b7fccd795d 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -22,6 +22,10 @@ CONFIG_MODULE_SRCVERSION_ALL=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_ARCH_MULTI_V6=y
 CONFIG_ARCH_OMAP2PLUS=y
+CONFIG_ARCH_OMAP2=y
+CONFIG_ARCH_OMAP3=y
+CONFIG_ARCH_OMAP4=y
+CONFIG_SOC_AM33XX=y
 CONFIG_OMAP_RESET_CLOCKS=y
 CONFIG_OMAP_MUX_DEBUG=y
 CONFIG_ARCH_VEXPRESS_CA9X4=y
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 1f8127afa744..5c1405157bb6 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -1,62 +1,10 @@
 config ARCH_OMAP
 	bool
 
-config ARCH_OMAP2PLUS
-	bool "TI OMAP2/3/4/5 SoCs with device tree support" if (ARCH_MULTI_V6 || ARCH_MULTI_V7)
-	select ARCH_HAS_CPUFREQ
-	select ARCH_HAS_HOLES_MEMORYMODEL
-	select ARCH_OMAP
-	select ARCH_REQUIRE_GPIOLIB
-	select CLKDEV_LOOKUP
-	select CLKSRC_MMIO
-	select GENERIC_CLOCKEVENTS
-	select GENERIC_IRQ_CHIP
-	select HAVE_CLK
-	select OMAP_DM_TIMER
-	select PINCTRL
-	select PROC_DEVICETREE if PROC_FS
-	select SOC_BUS
-	select SPARSE_IRQ
-	select TI_PRIV_EDMA
-	select USE_OF
-	help
-	  Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
-
-
-if ARCH_OMAP2PLUS
-
-menu "TI OMAP2/3/4 Specific Features"
-
-config ARCH_OMAP2PLUS_TYPICAL
-	bool "Typical OMAP configuration"
-	default y
-	select AEABI
-	select HIGHMEM
-	select I2C
-	select I2C_OMAP
-	select MENELAUS if ARCH_OMAP2
-	select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5
-	select PM_RUNTIME
-	select REGULATOR
-	select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
-	select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
-	select VFP
-	help
-	  Compile a kernel suitable for booting most boards
-
-config SOC_HAS_OMAP2_SDRC
-	bool "OMAP2 SDRAM Controller support"
-
-config SOC_HAS_REALTIME_COUNTER
-	bool "Real time free running counter"
-	depends on SOC_OMAP5
-	default y
-
 config ARCH_OMAP2
 	bool "TI OMAP2"
-	depends on ARCH_OMAP2PLUS
 	depends on ARCH_MULTI_V6
-	default y
+	select ARCH_OMAP2PLUS
 	select CPU_V6
 	select MULTI_IRQ_HANDLER
 	select SOC_HAS_OMAP2_SDRC
@@ -64,9 +12,8 @@ config ARCH_OMAP2
 
 config ARCH_OMAP3
 	bool "TI OMAP3"
-	depends on ARCH_OMAP2PLUS
 	depends on ARCH_MULTI_V7
-	default y
+	select ARCH_OMAP2PLUS
 	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 	select CPU_V7
@@ -80,9 +27,8 @@ config ARCH_OMAP3
 
 config ARCH_OMAP4
 	bool "TI OMAP4"
-	default y
-	depends on ARCH_OMAP2PLUS
 	depends on ARCH_MULTI_V7
+	select ARCH_OMAP2PLUS
 	select ARCH_HAS_OPP
 	select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
 	select ARM_CPU_SUSPEND if PM
@@ -107,6 +53,7 @@ config ARCH_OMAP4
 config SOC_OMAP5
 	bool "TI OMAP5"
 	depends on ARCH_MULTI_V7
+	select ARCH_OMAP2PLUS
 	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select CPU_V7
@@ -116,6 +63,76 @@ config SOC_OMAP5
 	select COMMON_CLK
 	select HAVE_ARM_ARCH_TIMER
 
+config SOC_AM33XX
+	bool "AM33XX support"
+	depends on ARCH_MULTI_V7
+	select ARCH_OMAP2PLUS
+	select ARM_CPU_SUSPEND if PM
+	select CPU_V7
+	select MULTI_IRQ_HANDLER
+	select COMMON_CLK
+
+config SOC_AM43XX
+	bool "TI AM43x"
+	depends on ARCH_MULTI_V7
+	select CPU_V7
+	select ARCH_OMAP2PLUS
+	select MULTI_IRQ_HANDLER
+	select ARM_GIC
+	select COMMON_CLK
+	select MACH_OMAP_GENERIC
+
+config ARCH_OMAP2PLUS
+	bool
+	select ARCH_HAS_BANDGAP
+	select ARCH_HAS_CPUFREQ
+	select ARCH_HAS_HOLES_MEMORYMODEL
+	select ARCH_OMAP
+	select ARCH_REQUIRE_GPIOLIB
+	select CLKDEV_LOOKUP
+	select CLKSRC_MMIO
+	select GENERIC_CLOCKEVENTS
+	select GENERIC_IRQ_CHIP
+	select HAVE_CLK
+	select OMAP_DM_TIMER
+	select PINCTRL
+	select PROC_DEVICETREE if PROC_FS
+	select SOC_BUS
+	select SPARSE_IRQ
+	select USE_OF
+	help
+	  Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
+
+
+if ARCH_OMAP2PLUS
+
+menu "TI OMAP2/3/4 Specific Features"
+
+config ARCH_OMAP2PLUS_TYPICAL
+	bool "Typical OMAP configuration"
+	default y
+	select AEABI
+	select HIGHMEM
+	select I2C
+	select I2C_OMAP
+	select MENELAUS if ARCH_OMAP2
+	select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5
+	select PM_RUNTIME
+	select REGULATOR
+	select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
+	select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
+	select VFP
+	help
+	  Compile a kernel suitable for booting most boards
+
+config SOC_HAS_OMAP2_SDRC
+	bool "OMAP2 SDRAM Controller support"
+
+config SOC_HAS_REALTIME_COUNTER
+	bool "Real time free running counter"
+	depends on SOC_OMAP5
+	default y
+
 comment "OMAP Core Type"
 	depends on ARCH_OMAP2
 
@@ -143,23 +160,6 @@ config SOC_TI81XX
 	depends on ARCH_OMAP3
 	default y
 
-config SOC_AM33XX
-	bool "AM33XX support"
-	depends on ARCH_MULTI_V7
-	default y
-	select ARM_CPU_SUSPEND if PM
-	select CPU_V7
-	select MULTI_IRQ_HANDLER
-	select COMMON_CLK
-
-config SOC_AM43XX
-	bool "TI AM43x"
-	select CPU_V7
-	select MULTI_IRQ_HANDLER
-	select ARM_GIC
-	select COMMON_CLK
-	select MACH_OMAP_GENERIC
-
 config OMAP_PACKAGE_ZAF
        bool
 
-- 
cgit v1.2.3


From 069d0a7870f45a3eb0540825d6dc517eda2a525a Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 5 Jul 2013 16:20:17 +0200
Subject: ARM: OMAP: omap_common_late_init may be unused

Some OMAP SoCs use this function while others do not, and that
causes a warning when building multi_v7_defconfig. Marking the
function __maybe_unused silences the harmless warning without the
need to add complex #ifdef logic.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index fe3253a100e7..4a3f06f02859 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -394,7 +394,7 @@ static void __init omap_hwmod_init_postsetup(void)
 	omap_pm_if_early_init();
 }
 
-static void __init omap_common_late_init(void)
+static void __init __maybe_unused omap_common_late_init(void)
 {
 	omap_mux_late_init();
 	omap2_common_pm_late_init();
-- 
cgit v1.2.3


From 9d8812df35be58a5da0c44182c1e4ba2507cc6a7 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Tue, 9 Jul 2013 01:31:23 -0700
Subject: ARM: omap2: add select of TI_PRIV_EDMA

"ARM: OMAP: build mach-omap code only if needed" moved around the
ARCH_OMAP2PLUS stanza, but accidentally dropped the seleciton of
TI_PRIV_EDMA in the process. Add it back.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-omap2/Kconfig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 5c1405157bb6..58152b15ecaa 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -99,6 +99,7 @@ config ARCH_OMAP2PLUS
 	select PROC_DEVICETREE if PROC_FS
 	select SOC_BUS
 	select SPARSE_IRQ
+	select TI_PRIV_EDMA
 	select USE_OF
 	help
 	  Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
-- 
cgit v1.2.3


From 7b6d864b48d95e6ea1df7df64475b9cb9616dcf9 Mon Sep 17 00:00:00 2001
From: Robin Holt <holt@sgi.com>
Date: Mon, 8 Jul 2013 16:01:40 -0700
Subject: reboot: arm: change reboot_mode to use enum reboot_mode

Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.

[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/include/asm/hardware/iop3xx.h         |  3 ++-
 arch/arm/include/asm/mach/arch.h               |  2 +-
 arch/arm/include/asm/system_misc.h             |  3 ++-
 arch/arm/kernel/process.c                      |  5 +++--
 arch/arm/mach-at91/at91rm9200.c                |  3 ++-
 arch/arm/mach-at91/generic.h                   |  5 +++--
 arch/arm/mach-bcm2835/bcm2835.c                |  4 ++--
 arch/arm/mach-clps711x/common.c                |  2 +-
 arch/arm/mach-clps711x/common.h                |  4 +++-
 arch/arm/mach-cns3xxx/core.h                   |  4 +++-
 arch/arm/mach-cns3xxx/pm.c                     |  2 +-
 arch/arm/mach-davinci/devices-da8xx.c          |  3 ++-
 arch/arm/mach-davinci/devices.c                |  3 ++-
 arch/arm/mach-davinci/include/mach/common.h    |  3 ++-
 arch/arm/mach-davinci/include/mach/da8xx.h     |  3 ++-
 arch/arm/mach-davinci/include/mach/tnetv107x.h |  3 ++-
 arch/arm/mach-davinci/tnetv107x.c              |  3 ++-
 arch/arm/mach-dove/common.c                    |  2 +-
 arch/arm/mach-dove/common.h                    |  4 +++-
 arch/arm/mach-ebsa110/core.c                   |  2 +-
 arch/arm/mach-ep93xx/core.c                    |  3 ++-
 arch/arm/mach-ep93xx/include/mach/platform.h   |  4 +++-
 arch/arm/mach-exynos/common.c                  |  4 ++--
 arch/arm/mach-exynos/common.h                  |  5 +++--
 arch/arm/mach-footbridge/common.c              |  4 ++--
 arch/arm/mach-footbridge/common.h              |  3 ++-
 arch/arm/mach-footbridge/netwinder-hw.c        |  4 ++--
 arch/arm/mach-highbank/core.h                  |  4 +++-
 arch/arm/mach-highbank/system.c                |  5 +++--
 arch/arm/mach-imx/common.h                     |  4 +++-
 arch/arm/mach-imx/mach-imx6q.c                 |  3 ++-
 arch/arm/mach-imx/system.c                     |  2 +-
 arch/arm/mach-integrator/common.h              |  3 ++-
 arch/arm/mach-integrator/core.c                |  2 +-
 arch/arm/mach-iop13xx/include/mach/iop13xx.h   |  5 ++++-
 arch/arm/mach-iop13xx/setup.c                  |  2 +-
 arch/arm/mach-iop32x/n2100.c                   |  2 +-
 arch/arm/mach-ixp4xx/common.c                  |  4 ++--
 arch/arm/mach-ixp4xx/dsmg600-setup.c           |  1 +
 arch/arm/mach-ixp4xx/include/mach/platform.h   |  4 +++-
 arch/arm/mach-kirkwood/common.c                |  3 ++-
 arch/arm/mach-kirkwood/common.h                |  4 +++-
 arch/arm/mach-ks8695/generic.h                 |  2 +-
 arch/arm/mach-ks8695/time.c                    |  4 ++--
 arch/arm/mach-lpc32xx/common.c                 |  6 +++---
 arch/arm/mach-lpc32xx/common.h                 |  3 ++-
 arch/arm/mach-mmp/common.c                     |  2 +-
 arch/arm/mach-mmp/common.h                     |  3 ++-
 arch/arm/mach-mmp/include/mach/pxa168.h        |  4 +++-
 arch/arm/mach-mmp/pxa168.c                     |  2 +-
 arch/arm/mach-mv78xx0/common.c                 |  2 +-
 arch/arm/mach-mv78xx0/common.h                 |  4 +++-
 arch/arm/mach-mvebu/common.h                   |  4 +++-
 arch/arm/mach-mvebu/system-controller.c        |  3 ++-
 arch/arm/mach-mxs/mach-mxs.c                   |  3 ++-
 arch/arm/mach-netx/generic.c                   |  3 ++-
 arch/arm/mach-netx/generic.h                   |  4 +++-
 arch/arm/mach-nomadik/cpu-8815.c               |  2 +-
 arch/arm/mach-omap1/board-voiceblue.c          |  3 ++-
 arch/arm/mach-omap1/common.h                   |  3 ++-
 arch/arm/mach-omap1/reset.c                    |  3 ++-
 arch/arm/mach-omap2/am33xx-restart.c           |  3 ++-
 arch/arm/mach-omap2/common.h                   | 17 +++++++++--------
 arch/arm/mach-omap2/omap2-restart.c            |  2 +-
 arch/arm/mach-omap2/omap3-restart.c            |  3 ++-
 arch/arm/mach-omap2/omap4-common.c             |  1 +
 arch/arm/mach-omap2/omap4-restart.c            |  3 ++-
 arch/arm/mach-orion5x/common.c                 |  2 +-
 arch/arm/mach-orion5x/common.h                 |  4 +++-
 arch/arm/mach-orion5x/ls-chl-setup.c           |  2 +-
 arch/arm/mach-orion5x/ls_hgl-setup.c           |  2 +-
 arch/arm/mach-orion5x/lsmini-setup.c           |  2 +-
 arch/arm/mach-picoxcell/common.c               |  3 ++-
 arch/arm/mach-prima2/common.h                  |  4 +++-
 arch/arm/mach-prima2/rstc.c                    |  3 ++-
 arch/arm/mach-pxa/corgi.c                      |  6 +++---
 arch/arm/mach-pxa/generic.h                    |  4 +++-
 arch/arm/mach-pxa/mioa701.c                    |  7 ++++---
 arch/arm/mach-pxa/poodle.c                     |  2 +-
 arch/arm/mach-pxa/reset.c                      |  8 ++++----
 arch/arm/mach-pxa/spitz.c                      |  5 +++--
 arch/arm/mach-pxa/tosa.c                       |  5 +++--
 arch/arm/mach-realview/realview_eb.c           |  3 ++-
 arch/arm/mach-realview/realview_pb1176.c       |  3 ++-
 arch/arm/mach-realview/realview_pb11mp.c       |  3 ++-
 arch/arm/mach-realview/realview_pba8.c         |  3 ++-
 arch/arm/mach-realview/realview_pbx.c          |  3 ++-
 arch/arm/mach-rpc/riscpc.c                     |  3 ++-
 arch/arm/mach-s3c24xx/common.h                 | 12 +++++++-----
 arch/arm/mach-s3c24xx/s3c2410.c                |  5 +++--
 arch/arm/mach-s3c24xx/s3c2412.c                |  5 +++--
 arch/arm/mach-s3c24xx/s3c2416.c                |  5 +++--
 arch/arm/mach-s3c24xx/s3c2443.c                |  5 +++--
 arch/arm/mach-s3c24xx/s3c244x.c                |  5 +++--
 arch/arm/mach-s3c64xx/common.c                 |  5 +++--
 arch/arm/mach-s3c64xx/common.h                 |  4 +++-
 arch/arm/mach-s5p64x0/common.c                 |  5 +++--
 arch/arm/mach-s5p64x0/common.h                 |  4 +++-
 arch/arm/mach-s5pc100/common.c                 |  5 +++--
 arch/arm/mach-s5pc100/common.h                 |  4 +++-
 arch/arm/mach-s5pv210/common.c                 |  2 +-
 arch/arm/mach-s5pv210/common.h                 |  4 +++-
 arch/arm/mach-sa1100/generic.c                 |  5 +++--
 arch/arm/mach-sa1100/generic.h                 |  3 ++-
 arch/arm/mach-shark/core.c                     |  3 ++-
 arch/arm/mach-shmobile/board-armadillo800eva.c |  3 ++-
 arch/arm/mach-shmobile/board-kzm9g.c           |  3 ++-
 arch/arm/mach-socfpga/socfpga.c                |  5 +++--
 arch/arm/mach-spear/generic.h                  |  4 +++-
 arch/arm/mach-spear/restart.c                  |  5 +++--
 arch/arm/mach-sunxi/sunxi.c                    |  3 ++-
 arch/arm/mach-tegra/board.h                    |  3 ++-
 arch/arm/mach-tegra/common.c                   |  3 ++-
 arch/arm/mach-u300/core.c                      |  6 +++---
 arch/arm/mach-versatile/core.c                 |  3 ++-
 arch/arm/mach-versatile/core.h                 |  3 ++-
 arch/arm/mach-vt8500/vt8500.c                  |  3 ++-
 arch/arm/mach-w90x900/cpu.c                    |  4 ++--
 arch/arm/mach-w90x900/nuc9xx.h                 |  5 ++++-
 arch/arm/plat-iop/gpio.c                       |  1 +
 arch/arm/plat-iop/restart.c                    |  2 +-
 drivers/power/reset/restart-poweroff.c         |  3 ++-
 drivers/power/reset/vexpress-poweroff.c        |  2 +-
 include/linux/reboot.h                         |  1 +
 include/linux/vexpress.h                       |  1 +
 125 files changed, 282 insertions(+), 166 deletions(-)

(limited to 'arch/arm/mach-omap2')

diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h
index ed94b1a366ae..423744bf18eb 100644
--- a/arch/arm/include/asm/hardware/iop3xx.h
+++ b/arch/arm/include/asm/hardware/iop3xx.h
@@ -223,11 +223,12 @@ extern int iop3xx_get_init_atu(void);
 #ifndef __ASSEMBLY__
 
 #include <linux/types.h>
+#include <linux/reboot.h>
 
 void iop3xx_map_io(void);
 void iop_init_cp6_handler(void);
 void iop_init_time(unsigned long tickrate);
-void iop3xx_restart(char, const char *);
+void iop3xx_restart(enum reboot_mode, const char *);
 
 static inline u32 read_tmr0(void)
 {
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index fdf62b4246b0..441efc491b50 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -59,7 +59,7 @@ struct machine_desc {
 #ifdef CONFIG_MULTI_IRQ_HANDLER
 	void			(*handle_irq)(struct pt_regs *);
 #endif
-	void			(*restart)(char, const char *);
+	void			(*restart)(enum reboot_mode, const char *);
 };
 
 /*
diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h
index 21a23e378bbe..a3d61ad984af 100644
--- a/arch/arm/include/asm/system_misc.h
+++ b/arch/arm/include/asm/system_misc.h
@@ -6,11 +6,12 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/irqflags.h>
+#include <linux/reboot.h>
 
 extern void cpu_init(void);
 
 void soft_restart(unsigned long);
-extern void (*arm_pm_restart)(char str, const char *cmd);
+extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 extern void (*arm_pm_idle)(void);
 
 #define UDBG_UNDEFINED	(1 << 0)
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 2d544062fd7d..b7fdd864c839 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -32,6 +32,7 @@
 #include <linux/hw_breakpoint.h>
 #include <linux/cpuidle.h>
 #include <linux/leds.h>
+#include <linux/reboot.h>
 
 #include <asm/cacheflush.h>
 #include <asm/idmap.h>
@@ -113,7 +114,7 @@ void soft_restart(unsigned long addr)
 	BUG();
 }
 
-static void null_restart(char mode, const char *cmd)
+static void null_restart(enum reboot_mode reboot_mode, const char *cmd)
 {
 }
 
@@ -123,7 +124,7 @@ static void null_restart(char mode, const char *cmd)
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
-void (*arm_pm_restart)(char str, const char *cmd) = null_restart;
+void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd) = null_restart;
 EXPORT_SYMBOL_GPL(arm_pm_restart);
 
 /*
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 9eb574397ee1..4aad93d54d6f 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/reboot.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -304,7 +305,7 @@ static void at91rm9200_idle(void)
 	at91_pmc_write(AT91_PMC_SCDR, AT91_PMC_PCK);
 }
 
-static void at91rm9200_restart(char mode, const char *cmd)
+static void at91rm9200_restart(enum reboot_mode reboot_mode, const char *cmd)
 {
 	/*
 	 * Perform a hardware reset with the use of the Watchdog timer.
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index f6de36aefe85..dc6e2f5f804d 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -10,6 +10,7 @@
 
 #include <linux/clkdev.h>
 #include <linux/of.h>
+#include <linux/reboot.h>
 
  /* Map io */
 extern void __init at91_map_io(void);
@@ -60,8 +61,8 @@ extern void at91sam9_idle(void);
 
 /* reset */
 extern void at91_ioremap_rstc(u32 base_addr);
-extern void at91sam9_alt_restart(char, const char *);
-extern void at91sam9g45_restart(char, const char *);
+extern void at91sam9_alt_restart(enum reboot_mode, const char *);
+extern void at91sam9g45_restart(enum reboot_mode, const char *);
 
 /* shutdown */
 extern void at91_ioremap_shdwc(u32 base_addr);
diff --git a/arch/arm/mach-bcm2835/bcm2835.c b/arch/arm/mach-bcm2835/bcm2835.c
index 740fa9ebe249..40686d7ef500 100644
--- a/arch/arm/mach-bcm2835/bcm2835.c
+++ b/arch/arm/mach-bcm2835/bcm2835.c
@@ -53,7 +53,7 @@ static void bcm2835_setup_restart(void)
 	WARN(!wdt_regs, "failed to remap watchdog regs");
 }
 
-static void bcm2835_restart(char mode, const char *cmd)
+static void bcm2835_restart(enum reboot_mode mode, const char *cmd)
 {
 	u32 val;
 
@@ -91,7 +91,7 @@ static void bcm2835_power_off(void)
 	writel_relaxed(val, wdt_regs + PM_RSTS);
 
 	/* Continue with normal reset mechanism */
-	bcm2835_restart(0, "");
+	bcm2835_restart(REBOOT_HARD, "");
 }
 
 static struct map_desc io_map __initdata = {
diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c
index f6d1746366d4..4ca2f3ca2de4 100644
--- a/arch/arm/mach-clps711x/common.c
+++ b/arch/arm/mach-clps711x/common.c
@@ -384,7 +384,7 @@ void __init clps711x_timer_init(void)
 	setup_irq(IRQ_TC2OI, &clps711x_timer_irq);
 }
 
-void clps711x_restart(char mode, const char *cmd)
+void clps711x_restart(enum reboot_mode mode, const char *cmd)
 {
 	soft_restart(0);
 }
diff --git a/arch/arm/mach-clps711x/common.h b/arch/arm/mach-clps711x/common.h
index 2a22f4c6cc75..9a6767bfdc47 100644
--- a/arch/arm/mach-clps711x/common.h
+++ b/arch/arm/mach-clps711x/common.h
@@ -4,6 +4,8 @@
  * Common bits.
  */
 
+#include <linux/reboot.h>
+
 #define CLPS711X_NR_IRQS	(33)
 #define CLPS711X_NR_GPIO	(4 * 8 + 3)
 #define CLPS711X_GPIO(prt, bit)	((prt) * 8 + (bit))
@@ -12,5 +14,5 @@ extern void clps711x_map_io(void);
 extern void clps711x_init_irq(void);
 extern void clps711x_timer_init(void);
 extern void clps711x_handle_irq(struct pt_regs *regs);
-extern void clps711x_restart(char mode, const char *cmd);
+extern void clps711x_restart(enum reboot_mode mode, const char *cmd);
 extern void clps711x_init_early(void);
diff --git a/arch/arm/mach-cns3xxx/core.h b/arch/arm/mach-cns3xxx/core.h
index b23b17b4da10..5218b6198dc2 100644
--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
@@ -11,6 +11,8 @@
 #ifndef __CNS3XXX_CORE_H
 #define __CNS3XXX_CORE_H
 
+#include <linux/reboot.h>
+
 extern void cns3xxx_timer_init(void);
 
 #ifdef CONFIG_CACHE_L2X0
@@ -22,6 +24,6 @@ static inline void cns3xxx_l2x0_init(void) {}
 void __init cns3xxx_map_io(void);
 void __init cns3xxx_init_irq(void);
 void cns3xxx_power_off(void);
-void cns3xxx_restart(char, const char *);
+void cns3xxx_restart(enum reboot_mode, const char *);
 
 #endif /* __CNS3XXX_CORE_H */
diff --git a/arch/arm/mach-cns3xxx/pm.c b/arch/arm/mach-cns3xxx/pm.c
index 79e3d47aad65..fb38c726e987 100644
--- a/arch/arm/mach-cns3xxx/pm.c
+++ b/arch/arm/mach-cns3xxx/pm.c
@@ -89,7 +89,7 @@ void cns3xxx_pwr_soft_rst(unsigned int block)
 }
 EXPORT_SYMBOL(cns3xxx_pwr_soft_rst);
 
-void cns3xxx_restart(char mode, const char *cmd)
+void cns3xxx_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * To reset, we hit the on-board reset register
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index eb254fe861ac..71a46a348761 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -16,6 +16,7 @@
 #include <linux/serial_8250.h>
 #include <linux/ahci_platform.h>
 #include <linux/clk.h>
+#include <linux/reboot.h>
 
 #include <mach/cputype.h>
 #include <mach/common.h>
@@ -366,7 +367,7 @@ static struct platform_device da8xx_wdt_device = {
 	.resource	= da8xx_watchdog_resources,
 };
 
-void da8xx_restart(char mode, const char *cmd)
+void da8xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	struct device *dev;
 
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index 90b83d00fe2b..111573c0aad1 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 #include <mach/hardware.h>
 #include <linux/platform_data/i2c-davinci.h>
@@ -307,7 +308,7 @@ struct platform_device davinci_wdt_device = {
 	.resource	= wdt_resources,
 };
 
-void davinci_restart(char mode, const char *cmd)
+void davinci_restart(enum reboot_mode mode, const char *cmd)
 {
 	davinci_watchdog_reset(&davinci_wdt_device);
 }
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index b124b77c90c5..cce316b92c06 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -14,6 +14,7 @@
 
 #include <linux/compiler.h>
 #include <linux/types.h>
+#include <linux/reboot.h>
 
 extern void davinci_timer_init(void);
 
@@ -81,7 +82,7 @@ extern struct davinci_soc_info davinci_soc_info;
 
 extern void davinci_common_init(struct davinci_soc_info *soc_info);
 extern void davinci_init_ide(void);
-void davinci_restart(char mode, const char *cmd);
+void davinci_restart(enum reboot_mode mode, const char *cmd);
 void davinci_init_late(void);
 
 #ifdef CONFIG_DAVINCI_RESET_CLOCKS
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 3c797e2272f8..7b41a5e9bc31 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -17,6 +17,7 @@
 #include <linux/davinci_emac.h>
 #include <linux/spi/spi.h>
 #include <linux/platform_data/davinci_asp.h>
+#include <linux/reboot.h>
 #include <linux/videodev2.h>
 
 #include <mach/serial.h>
@@ -106,7 +107,7 @@ int da850_register_vpif_display
 			(struct vpif_display_config *display_config);
 int da850_register_vpif_capture
 			(struct vpif_capture_config *capture_config);
-void da8xx_restart(char mode, const char *cmd);
+void da8xx_restart(enum reboot_mode mode, const char *cmd);
 void da8xx_rproc_reserve_cma(void);
 int da8xx_register_rproc(void);
 
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 366e975effa8..16314c64f755 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -35,6 +35,7 @@
 #include <linux/serial_8250.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/mfd/ti_ssp.h>
+#include <linux/reboot.h>
 
 #include <linux/platform_data/mmc-davinci.h>
 #include <linux/platform_data/mtd-davinci.h>
@@ -54,7 +55,7 @@ extern struct platform_device tnetv107x_serial_device;
 extern void tnetv107x_init(void);
 extern void tnetv107x_devices_init(struct tnetv107x_device_info *);
 extern void tnetv107x_irq_init(void);
-void tnetv107x_restart(char mode, const char *cmd);
+void tnetv107x_restart(enum reboot_mode mode, const char *cmd);
 
 #endif
 
diff --git a/arch/arm/mach-davinci/tnetv107x.c b/arch/arm/mach-davinci/tnetv107x.c
index 3b2a70d43efa..4545667ecd3c 100644
--- a/arch/arm/mach-davinci/tnetv107x.c
+++ b/arch/arm/mach-davinci/tnetv107x.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 
 #include <asm/mach/map.h>
 
@@ -730,7 +731,7 @@ static void tnetv107x_watchdog_reset(struct platform_device *pdev)
 	__raw_writel(1, &regs->kick);
 }
 
-void tnetv107x_restart(char mode, const char *cmd)
+void tnetv107x_restart(enum reboot_mode mode, const char *cmd)
 {
 	tnetv107x_watchdog_reset(&tnetv107x_wdt_device);
 }
diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
index 2a9443d04d92..00247c771313 100644
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -381,7 +381,7 @@ void __init dove_init(void)
 	dove_xor1_init();
 }
 
-void dove_restart(char mode, const char *cmd)
+void dove_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Enable soft reset to assert RSTOUTn.
diff --git a/arch/arm/mach-dove/common.h b/arch/arm/mach-dove/common.h
index e86347928b67..1d725224d146 100644
--- a/arch/arm/mach-dove/common.h
+++ b/arch/arm/mach-dove/common.h
@@ -11,6 +11,8 @@
 #ifndef __ARCH_DOVE_COMMON_H
 #define __ARCH_DOVE_COMMON_H
 
+#include <linux/reboot.h>
+
 struct mv643xx_eth_platform_data;
 struct mv_sata_platform_data;
 
@@ -42,6 +44,6 @@ void dove_spi1_init(void);
 void dove_i2c_init(void);
 void dove_sdio0_init(void);
 void dove_sdio1_init(void);
-void dove_restart(char, const char *);
+void dove_restart(enum reboot_mode, const char *);
 
 #endif
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index 41d2d90afaa3..68ac934d4565 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -311,7 +311,7 @@ static int __init ebsa110_init(void)
 
 arch_initcall(ebsa110_init);
 
-static void ebsa110_restart(char mode, const char *cmd)
+static void ebsa110_restart(enum reboot_mode mode, const char *cmd)
 {
 	soft_restart(0x80000000);
 }
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index c49ed3dc1aea..df8612fbbc9c 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -35,6 +35,7 @@
 #include <linux/spi/spi.h>
 #include <linux/export.h>
 #include <linux/irqchip/arm-vic.h>
+#include <linux/reboot.h>
 
 #include <mach/hardware.h>
 #include <linux/platform_data/video-ep93xx.h>
@@ -921,7 +922,7 @@ void __init ep93xx_init_devices(void)
 	gpio_led_register_device(-1, &ep93xx_led_data);
 }
 
-void ep93xx_restart(char mode, const char *cmd)
+void ep93xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Set then clear the SWRST bit to initiate a software reset
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index a14e1b37beff..e256e0baec2e 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -4,6 +4,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/reboot.h>
+
 struct i2c_gpio_platform_data;
 struct i2c_board_info;
 struct spi_board_info;
@@ -55,7 +57,7 @@ void ep93xx_ide_release_gpio(struct platform_device *pdev);
 void ep93xx_init_devices(void);
 extern void ep93xx_timer_init(void);
 
-void ep93xx_restart(char, const char *);
+void ep93xx_restart(enum reboot_mode, const char *);
 void ep93xx_init_late(void);
 
 #ifdef CONFIG_CRUNCH
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 2c655db4b78e..164685bd25c8 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -285,12 +285,12 @@ static struct map_desc exynos5440_iodesc0[] __initdata = {
 	},
 };
 
-void exynos4_restart(char mode, const char *cmd)
+void exynos4_restart(enum reboot_mode mode, const char *cmd)
 {
 	__raw_writel(0x1, S5P_SWRESET);
 }
 
-void exynos5_restart(char mode, const char *cmd)
+void exynos5_restart(enum reboot_mode mode, const char *cmd)
 {
 	struct device_node *np;
 	u32 val;
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 38d45fd23be4..3e156bcddcb4 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -12,6 +12,7 @@
 #ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H
 #define __ARCH_ARM_MACH_EXYNOS_COMMON_H
 
+#include <linux/reboot.h>
 #include <linux/of.h>
 
 void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1);
@@ -20,8 +21,8 @@ extern unsigned long xxti_f, xusbxti_f;
 
 struct map_desc;
 void exynos_init_io(void);
-void exynos4_restart(char mode, const char *cmd);
-void exynos5_restart(char mode, const char *cmd);
+void exynos4_restart(enum reboot_mode mode, const char *cmd);
+void exynos5_restart(enum reboot_mode mode, const char *cmd);
 void exynos_init_late(void);
 
 /* ToDo: remove these after migrating legacy exynos4 platforms to dt */
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index a42b369bc439..2739ca2c1334 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c
@@ -198,9 +198,9 @@ void __init footbridge_map_io(void)
 	}
 }
 
-void footbridge_restart(char mode, const char *cmd)
+void footbridge_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's') {
+	if (mode == REBOOT_SOFT) {
 		/* Jump into the ROM */
 		soft_restart(0x41000000);
 	} else {
diff --git a/arch/arm/mach-footbridge/common.h b/arch/arm/mach-footbridge/common.h
index a846e50a07b8..56607b3a773e 100644
--- a/arch/arm/mach-footbridge/common.h
+++ b/arch/arm/mach-footbridge/common.h
@@ -1,3 +1,4 @@
+#include <linux/reboot.h>
 
 extern void footbridge_timer_init(void);
 extern void isa_timer_init(void);
@@ -8,4 +9,4 @@ extern void footbridge_map_io(void);
 extern void footbridge_init_irq(void);
 
 extern void isa_init_irq(unsigned int irq);
-extern void footbridge_restart(char, const char *);
+extern void footbridge_restart(enum reboot_mode, const char *);
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 90ea23fdce4c..1fd2cf097e30 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -634,9 +634,9 @@ fixup_netwinder(struct tag *tags, char **cmdline, struct meminfo *mi)
 #endif
 }
 
-static void netwinder_restart(char mode, const char *cmd)
+static void netwinder_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's') {
+	if (mode == REBOOT_SOFT) {
 		/* Jump into the ROM */
 		soft_restart(0x41000000);
 	} else {
diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h
index 3f65206a9b92..aea1ec5ab6f8 100644
--- a/arch/arm/mach-highbank/core.h
+++ b/arch/arm/mach-highbank/core.h
@@ -1,8 +1,10 @@
 #ifndef __HIGHBANK_CORE_H
 #define __HIGHBANK_CORE_H
 
+#include <linux/reboot.h>
+
 extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
-extern void highbank_restart(char, const char *);
+extern void highbank_restart(enum reboot_mode, const char *);
 extern void __iomem *scu_base_addr;
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
index 37d8384dcf19..2df5870b7583 100644
--- a/arch/arm/mach-highbank/system.c
+++ b/arch/arm/mach-highbank/system.c
@@ -15,13 +15,14 @@
  */
 #include <linux/io.h>
 #include <asm/proc-fns.h>
+#include <linux/reboot.h>
 
 #include "core.h"
 #include "sysregs.h"
 
-void highbank_restart(char mode, const char *cmd)
+void highbank_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 'h')
+	if (mode == REBOOT_HARD)
 		highbank_set_pwr_hard_reset();
 	else
 		highbank_set_pwr_soft_reset();
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index ee78847abf47..cb6c838b63ed 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -11,6 +11,8 @@
 #ifndef __ASM_ARCH_MXC_COMMON_H__
 #define __ASM_ARCH_MXC_COMMON_H__
 
+#include <linux/reboot.h>
+
 struct platform_device;
 struct pt_regs;
 struct clk;
@@ -71,7 +73,7 @@ extern int mx53_clocks_init_dt(void);
 extern struct platform_device *mxc_register_gpio(char *name, int id,
 	resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);
 extern void mxc_set_cpu_type(unsigned int type);
-extern void mxc_restart(char, const char *);
+extern void mxc_restart(enum reboot_mode, const char *);
 extern void mxc_arch_reset_init(void __iomem *);
 extern void mxc_arch_reset_init_dt(void);
 extern int mx53_revision(void);
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index f5965220a4d8..7be13f8e69a0 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -27,6 +27,7 @@
 #include <linux/of_platform.h>
 #include <linux/opp.h>
 #include <linux/phy.h>
+#include <linux/reboot.h>
 #include <linux/regmap.h>
 #include <linux/micrel_phy.h>
 #include <linux/mfd/syscon.h>
@@ -67,7 +68,7 @@ static void __init imx6q_init_revision(void)
 	mxc_set_cpu_type(rev >> 16 & 0xff);
 }
 
-static void imx6q_restart(char mode, const char *cmd)
+static void imx6q_restart(enum reboot_mode mode, const char *cmd)
 {
 	struct device_node *np;
 	void __iomem *wdog_base;
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 7cdc79a9657c..6fe81bb4d3c9 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -37,7 +37,7 @@ static struct clk *wdog_clk;
 /*
  * Reset the system. It is called by machine_restart().
  */
-void mxc_restart(char mode, const char *cmd)
+void mxc_restart(enum reboot_mode mode, const char *cmd)
 {
 	unsigned int wcr_enable;
 
diff --git a/arch/arm/mach-integrator/common.h b/arch/arm/mach-integrator/common.h
index 72516658be1e..ad0ac5547b2c 100644
--- a/arch/arm/mach-integrator/common.h
+++ b/arch/arm/mach-integrator/common.h
@@ -1,7 +1,8 @@
+#include <linux/reboot.h>
 #include <linux/amba/serial.h>
 extern struct amba_pl010_data ap_uart_data;
 void integrator_init_early(void);
 int integrator_init(bool is_cp);
 void integrator_reserve(void);
-void integrator_restart(char, const char *);
+void integrator_restart(enum reboot_mode, const char *);
 void integrator_init_sysfs(struct device *parent, u32 id);
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index 81461d218717..4cdfd7365925 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -124,7 +124,7 @@ void __init integrator_reserve(void)
 /*
  * To reset, we hit the on-board reset register in the system FPGA
  */
-void integrator_restart(char mode, const char *cmd)
+void integrator_restart(enum reboot_mode mode, const char *cmd)
 {
 	cm_control(CM_CTRL_RESET, CM_CTRL_RESET);
 }
diff --git a/arch/arm/mach-iop13xx/include/mach/iop13xx.h b/arch/arm/mach-iop13xx/include/mach/iop13xx.h
index 7480f58267aa..17b40279e0a4 100644
--- a/arch/arm/mach-iop13xx/include/mach/iop13xx.h
+++ b/arch/arm/mach-iop13xx/include/mach/iop13xx.h
@@ -2,6 +2,9 @@
 #define _IOP13XX_HW_H_
 
 #ifndef __ASSEMBLY__
+
+#include <linux/reboot.h>
+
 /* The ATU offsets can change based on the strapping */
 extern u32 iop13xx_atux_pmmr_offset;
 extern u32 iop13xx_atue_pmmr_offset;
@@ -11,7 +14,7 @@ void iop13xx_map_io(void);
 void iop13xx_platform_init(void);
 void iop13xx_add_tpmi_devices(void);
 void iop13xx_init_irq(void);
-void iop13xx_restart(char, const char *);
+void iop13xx_restart(enum reboot_mode, const char *);
 
 /* CPUID CP6 R0 Page 0 */
 static inline int iop13xx_cpu_id(void)
diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c
index 1c5bd7637b05..96e6c7a6793b 100644
--- a/arch/arm/mach-iop13xx/setup.c
+++ b/arch/arm/mach-iop13xx/setup.c
@@ -594,7 +594,7 @@ __setup("iop13xx_init_adma", iop13xx_init_adma_setup);
 __setup("iop13xx_init_uart", iop13xx_init_uart_setup);
 __setup("iop13xx_init_i2c", iop13xx_init_i2c_setup);
 
-void iop13xx_restart(char mode, const char *cmd)
+void iop13xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Reset the internal bus (warning both cores are reset)
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index ea0984a7449e..069144300b77 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -286,7 +286,7 @@ static void n2100_power_off(void)
 		;
 }
 
-static void n2100_restart(char mode, const char *cmd)
+static void n2100_restart(enum reboot_mode mode, const char *cmd)
 {
 	gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW);
 	gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT);
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 1f6c1fb353ad..5327decde5a0 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -531,9 +531,9 @@ static void __init ixp4xx_clockevent_init(void)
 					0xf, 0xfffffffe);
 }
 
-void ixp4xx_restart(char mode, const char *cmd)
+void ixp4xx_restart(enum reboot_mode mode, const char *cmd)
 {
-	if ( 1 && mode == 's') {
+	if ( 1 && mode == REBOOT_SOFT) {
 		/* Jump into ROM at address 0 */
 		soft_restart(0);
 	} else {
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 5d413f8c5700..686ef34c69f5 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -27,6 +27,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 
+#include <mach/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
index db5afb69c123..4c4c6a6f4526 100644
--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -13,6 +13,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/reboot.h>
+
 #include <asm/types.h>
 
 #ifndef	__ARMEB__
@@ -123,7 +125,7 @@ extern void ixp4xx_init_early(void);
 extern void ixp4xx_init_irq(void);
 extern void ixp4xx_sys_init(void);
 extern void ixp4xx_timer_init(void);
-extern void ixp4xx_restart(char, const char *);
+extern void ixp4xx_restart(enum reboot_mode, const char *);
 extern void ixp4xx_pci_preinit(void);
 struct pci_sys_data;
 extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 7c72c725b711..e9238b5567ee 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -20,6 +20,7 @@
 #include <linux/mv643xx_i2c.h>
 #include <linux/timex.h>
 #include <linux/kexec.h>
+#include <linux/reboot.h>
 #include <net/dsa.h>
 #include <asm/page.h>
 #include <asm/mach/map.h>
@@ -722,7 +723,7 @@ void __init kirkwood_init(void)
 #endif
 }
 
-void kirkwood_restart(char mode, const char *cmd)
+void kirkwood_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Enable soft reset to assert RSTOUTn.
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 1c09f3f93fbb..fcf3ba682e24 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -11,6 +11,8 @@
 #ifndef __ARCH_KIRKWOOD_COMMON_H
 #define __ARCH_KIRKWOOD_COMMON_H
 
+#include <linux/reboot.h>
+
 struct dsa_platform_data;
 struct mv643xx_eth_platform_data;
 struct mv_sata_platform_data;
@@ -53,7 +55,7 @@ void kirkwood_audio_init(void);
 void kirkwood_cpuidle_init(void);
 void kirkwood_cpufreq_init(void);
 
-void kirkwood_restart(char, const char *);
+void kirkwood_restart(enum reboot_mode, const char *);
 void kirkwood_clk_init(void);
 
 /* board init functions for boards not fully converted to fdt */
diff --git a/arch/arm/mach-ks8695/generic.h b/arch/arm/mach-ks8695/generic.h
index 6e97ce462d73..43253f8e6de4 100644
--- a/arch/arm/mach-ks8695/generic.h
+++ b/arch/arm/mach-ks8695/generic.h
@@ -12,5 +12,5 @@
 
 extern __init void ks8695_map_io(void);
 extern __init void ks8695_init_irq(void);
-extern void ks8695_restart(char, const char *);
+extern void ks8695_restart(enum reboot_mode, const char *);
 extern void ks8695_timer_init(void);
diff --git a/arch/arm/mach-ks8695/time.c b/arch/arm/mach-ks8695/time.c
index c272a3863d5f..426c97662f5b 100644
--- a/arch/arm/mach-ks8695/time.c
+++ b/arch/arm/mach-ks8695/time.c
@@ -154,11 +154,11 @@ void __init ks8695_timer_init(void)
 	setup_irq(KS8695_IRQ_TIMER1, &ks8695_timer_irq);
 }
 
-void ks8695_restart(char mode, const char *cmd)
+void ks8695_restart(enum reboot_mode reboot_mode, const char *cmd)
 {
 	unsigned int reg;
 
-	if (mode == 's')
+	if (reboot_mode == REBOOT_SOFT)
 		soft_restart(0);
 
 	/* disable timer0 */
diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
index 0d4db8c544b5..d7aa54c25c59 100644
--- a/arch/arm/mach-lpc32xx/common.c
+++ b/arch/arm/mach-lpc32xx/common.c
@@ -207,11 +207,11 @@ void __init lpc32xx_map_io(void)
 	iotable_init(lpc32xx_io_desc, ARRAY_SIZE(lpc32xx_io_desc));
 }
 
-void lpc23xx_restart(char mode, const char *cmd)
+void lpc23xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	switch (mode) {
-	case 's':
-	case 'h':
+	case REBOOT_SOFT:
+	case REBOOT_HARD:
 		lpc32xx_watchdog_reset();
 		break;
 
diff --git a/arch/arm/mach-lpc32xx/common.h b/arch/arm/mach-lpc32xx/common.h
index e0b26062a272..1cd8853b2f9b 100644
--- a/arch/arm/mach-lpc32xx/common.h
+++ b/arch/arm/mach-lpc32xx/common.h
@@ -21,6 +21,7 @@
 
 #include <mach/board.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 
 /*
  * Other arch specific structures and functions
@@ -29,7 +30,7 @@ extern void lpc32xx_timer_init(void);
 extern void __init lpc32xx_init_irq(void);
 extern void __init lpc32xx_map_io(void);
 extern void __init lpc32xx_serial_init(void);
-extern void lpc23xx_restart(char, const char *);
+extern void lpc23xx_restart(enum reboot_mode, const char *);
 
 
 /*
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c
index 9292b7966e3b..c03b4ab582db 100644
--- a/arch/arm/mach-mmp/common.c
+++ b/arch/arm/mach-mmp/common.c
@@ -47,7 +47,7 @@ void __init mmp_map_io(void)
 	mmp_chip_id = __raw_readl(MMP_CHIPID);
 }
 
-void mmp_restart(char mode, const char *cmd)
+void mmp_restart(enum reboot_mode mode, const char *cmd)
 {
 	soft_restart(0);
 }
diff --git a/arch/arm/mach-mmp/common.h b/arch/arm/mach-mmp/common.h
index 0bdc50b134ce..991d7e9877de 100644
--- a/arch/arm/mach-mmp/common.h
+++ b/arch/arm/mach-mmp/common.h
@@ -1,10 +1,11 @@
+#include <linux/reboot.h>
 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
 
 extern void timer_init(int irq);
 
 extern void __init icu_init_irq(void);
 extern void __init mmp_map_io(void);
-extern void mmp_restart(char, const char *);
+extern void mmp_restart(enum reboot_mode, const char *);
 extern void __init pxa168_clk_init(void);
 extern void __init pxa910_clk_init(void);
 extern void __init mmp2_clk_init(void);
diff --git a/arch/arm/mach-mmp/include/mach/pxa168.h b/arch/arm/mach-mmp/include/mach/pxa168.h
index 7ed1df21ea1c..459c2d03eb5c 100644
--- a/arch/arm/mach-mmp/include/mach/pxa168.h
+++ b/arch/arm/mach-mmp/include/mach/pxa168.h
@@ -1,9 +1,11 @@
 #ifndef __ASM_MACH_PXA168_H
 #define __ASM_MACH_PXA168_H
 
+#include <linux/reboot.h>
+
 extern void pxa168_timer_init(void);
 extern void __init pxa168_init_irq(void);
-extern void pxa168_restart(char, const char *);
+extern void pxa168_restart(enum reboot_mode, const char *);
 extern void pxa168_clear_keypad_wakeup(void);
 
 #include <linux/i2c.h>
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
index a30dcf3b7d9e..144e997624c0 100644
--- a/arch/arm/mach-mmp/pxa168.c
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -172,7 +172,7 @@ int __init pxa168_add_usb_host(struct mv_usb_platform_data *pdata)
 	return platform_device_register(&pxa168_device_usb_host);
 }
 
-void pxa168_restart(char mode, const char *cmd)
+void pxa168_restart(enum reboot_mode mode, const char *cmd)
 {
 	soft_restart(0xffff0000);
 }
diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c
index 749a7f8c4992..75062eff2494 100644
--- a/arch/arm/mach-mv78xx0/common.c
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -413,7 +413,7 @@ void __init mv78xx0_init(void)
 	clk_init();
 }
 
-void mv78xx0_restart(char mode, const char *cmd)
+void mv78xx0_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Enable soft reset to assert RSTOUTn.
diff --git a/arch/arm/mach-mv78xx0/common.h b/arch/arm/mach-mv78xx0/common.h
index 5e9485bad0ac..6889af26077d 100644
--- a/arch/arm/mach-mv78xx0/common.h
+++ b/arch/arm/mach-mv78xx0/common.h
@@ -11,6 +11,8 @@
 #ifndef __ARCH_MV78XX0_COMMON_H
 #define __ARCH_MV78XX0_COMMON_H
 
+#include <linux/reboot.h>
+
 struct mv643xx_eth_platform_data;
 struct mv_sata_platform_data;
 
@@ -45,7 +47,7 @@ void mv78xx0_uart1_init(void);
 void mv78xx0_uart2_init(void);
 void mv78xx0_uart3_init(void);
 void mv78xx0_i2c_init(void);
-void mv78xx0_restart(char, const char *);
+void mv78xx0_restart(enum reboot_mode, const char *);
 
 extern void mv78xx0_timer_init(void);
 
diff --git a/arch/arm/mach-mvebu/common.h b/arch/arm/mach-mvebu/common.h
index 98defd5e92cd..e366010e1d91 100644
--- a/arch/arm/mach-mvebu/common.h
+++ b/arch/arm/mach-mvebu/common.h
@@ -17,7 +17,9 @@
 
 #define ARMADA_XP_MAX_CPUS 4
 
-void mvebu_restart(char mode, const char *cmd);
+#include <linux/reboot.h>
+
+void mvebu_restart(enum reboot_mode mode, const char *cmd);
 
 void armada_370_xp_init_irq(void);
 void armada_370_xp_handle_irq(struct pt_regs *regs);
diff --git a/arch/arm/mach-mvebu/system-controller.c b/arch/arm/mach-mvebu/system-controller.c
index b8079df8c986..f875124ff4f9 100644
--- a/arch/arm/mach-mvebu/system-controller.c
+++ b/arch/arm/mach-mvebu/system-controller.c
@@ -26,6 +26,7 @@
 #include <linux/init.h>
 #include <linux/of_address.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 static void __iomem *system_controller_base;
 
@@ -63,7 +64,7 @@ static struct of_device_id of_system_controller_table[] = {
 	{ /* end of list */ },
 };
 
-void mvebu_restart(char mode, const char *cmd)
+void mvebu_restart(enum reboot_mode mode, const char *cmd)
 {
 	if (!system_controller_base) {
 		pr_err("Cannot restart, system-controller not available: check the device tree\n");
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 7fa611c1b287..6298adb8d335 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -20,6 +20,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/irqchip/mxs.h>
+#include <linux/reboot.h>
 #include <linux/micrel_phy.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
@@ -500,7 +501,7 @@ static void __init mxs_machine_init(void)
 /*
  * Reset the system. It is called by machine_restart().
  */
-static void mxs_restart(char mode, const char *cmd)
+static void mxs_restart(enum reboot_mode mode, const char *cmd)
 {
 	struct device_node *np;
 	void __iomem *reset_addr;
diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c
index 1504b68f4c66..db25b0cef3a7 100644
--- a/arch/arm/mach-netx/generic.c
+++ b/arch/arm/mach-netx/generic.c
@@ -24,6 +24,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/irqchip/arm-vic.h>
+#include <linux/reboot.h>
 #include <mach/hardware.h>
 #include <asm/mach/map.h>
 #include <mach/netx-regs.h>
@@ -187,7 +188,7 @@ static int __init netx_init(void)
 
 subsys_initcall(netx_init);
 
-void netx_restart(char mode, const char *cmd)
+void netx_restart(enum reboot_mode mode, const char *cmd)
 {
 	writel(NETX_SYSTEM_RES_CR_FIRMW_RES_EN | NETX_SYSTEM_RES_CR_FIRMW_RES,
 	       NETX_SYSTEM_RES_CR);
diff --git a/arch/arm/mach-netx/generic.h b/arch/arm/mach-netx/generic.h
index 768b26bbb42b..bb2ce471cc28 100644
--- a/arch/arm/mach-netx/generic.h
+++ b/arch/arm/mach-netx/generic.h
@@ -17,8 +17,10 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/reboot.h>
+
 extern void __init netx_map_io(void);
 extern void __init netx_init_irq(void);
-extern void netx_restart(char, const char *);
+extern void netx_restart(enum reboot_mode, const char *);
 
 extern void netx_timer_init(void);
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 2df209ed1a07..13e0df9c11ce 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -103,7 +103,7 @@ static void __init cpu8815_map_io(void)
 	iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc));
 }
 
-static void cpu8815_restart(char mode, const char *cmd)
+static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, SZ_4K);
 
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index 6c116e1a4b01..4677a9ccb3cb 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -26,6 +26,7 @@
 #include <linux/serial_reg.h>
 #include <linux/smc91x.h>
 #include <linux/export.h>
+#include <linux/reboot.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -215,7 +216,7 @@ void voiceblue_wdt_ping(void)
 	gpio_set_value(0, wdt_gpio_state);
 }
 
-static void voiceblue_restart(char mode, const char *cmd)
+static void voiceblue_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
diff --git a/arch/arm/mach-omap1/common.h b/arch/arm/mach-omap1/common.h
index 14f7e9920479..abec019a5281 100644
--- a/arch/arm/mach-omap1/common.h
+++ b/arch/arm/mach-omap1/common.h
@@ -28,6 +28,7 @@
 
 #include <linux/mtd/mtd.h>
 #include <linux/i2c-omap.h>
+#include <linux/reboot.h>
 
 #include <plat/i2c.h>
 
@@ -70,7 +71,7 @@ static inline int omap_serial_wakeup_init(void)
 void omap1_init_early(void);
 void omap1_init_irq(void);
 void omap1_init_late(void);
-void omap1_restart(char, const char *);
+void omap1_restart(enum reboot_mode, const char *);
 
 extern void __init omap_check_revision(void);
 
diff --git a/arch/arm/mach-omap1/reset.c b/arch/arm/mach-omap1/reset.c
index 5eebd7e889d0..72bf4bf4a702 100644
--- a/arch/arm/mach-omap1/reset.c
+++ b/arch/arm/mach-omap1/reset.c
@@ -3,6 +3,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 #include <mach/hardware.h>
 
@@ -22,7 +23,7 @@
 #define OMAP_EXTWARM_RST_SRC_ID_SHIFT			5
 
 
-void omap1_restart(char mode, const char *cmd)
+void omap1_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
diff --git a/arch/arm/mach-omap2/am33xx-restart.c b/arch/arm/mach-omap2/am33xx-restart.c
index 88e4fa8af031..1eae96212315 100644
--- a/arch/arm/mach-omap2/am33xx-restart.c
+++ b/arch/arm/mach-omap2/am33xx-restart.c
@@ -6,6 +6,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/kernel.h>
+#include <linux/reboot.h>
 
 #include "common.h"
 #include "prm-regbits-33xx.h"
@@ -19,7 +20,7 @@
  * Resets the SoC.  For @cmd, see the 'reboot' syscall in
  * kernel/sys.c.  No return value.
  */
-void am33xx_restart(char mode, const char *cmd)
+void am33xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	/* TODO: Handle mode and cmd if necessary */
 
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 72cab3f4f16d..dfcc182ecff9 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -31,6 +31,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c/twl.h>
 #include <linux/i2c-omap.h>
+#include <linux/reboot.h>
 
 #include <asm/proc-fns.h>
 
@@ -119,33 +120,33 @@ static inline void omap_soc_device_init(void)
 #endif
 
 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
-void omap2xxx_restart(char mode, const char *cmd);
+void omap2xxx_restart(enum reboot_mode mode, const char *cmd);
 #else
-static inline void omap2xxx_restart(char mode, const char *cmd)
+static inline void omap2xxx_restart(enum reboot_mode mode, const char *cmd)
 {
 }
 #endif
 
 #ifdef CONFIG_SOC_AM33XX
-void am33xx_restart(char mode, const char *cmd);
+void am33xx_restart(enum reboot_mode mode, const char *cmd);
 #else
-static inline void am33xx_restart(char mode, const char *cmd)
+static inline void am33xx_restart(enum reboot_mode mode, const char *cmd)
 {
 }
 #endif
 
 #ifdef CONFIG_ARCH_OMAP3
-void omap3xxx_restart(char mode, const char *cmd);
+void omap3xxx_restart(enum reboot_mode mode, const char *cmd);
 #else
-static inline void omap3xxx_restart(char mode, const char *cmd)
+static inline void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
 {
 }
 #endif
 
 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
-void omap44xx_restart(char mode, const char *cmd);
+void omap44xx_restart(enum reboot_mode mode, const char *cmd);
 #else
-static inline void omap44xx_restart(char mode, const char *cmd)
+static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd)
 {
 }
 #endif
diff --git a/arch/arm/mach-omap2/omap2-restart.c b/arch/arm/mach-omap2/omap2-restart.c
index 719b716a4494..68423e26399d 100644
--- a/arch/arm/mach-omap2/omap2-restart.c
+++ b/arch/arm/mach-omap2/omap2-restart.c
@@ -31,7 +31,7 @@ static struct clk *reset_virt_prcm_set_ck, *reset_sys_ck;
  * Set the DPLL to bypass so that reboot completes successfully.  No
  * return value.
  */
-void omap2xxx_restart(char mode, const char *cmd)
+void omap2xxx_restart(enum reboot_mode mode, const char *cmd)
 {
 	u32 rate;
 
diff --git a/arch/arm/mach-omap2/omap3-restart.c b/arch/arm/mach-omap2/omap3-restart.c
index 923c582189e5..5de2a0c2979d 100644
--- a/arch/arm/mach-omap2/omap3-restart.c
+++ b/arch/arm/mach-omap2/omap3-restart.c
@@ -12,6 +12,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/reboot.h>
 
 #include "iomap.h"
 #include "common.h"
@@ -28,7 +29,7 @@
  * Resets the SoC.  For @cmd, see the 'reboot' syscall in
  * kernel/sys.c.  No return value.
  */
-void omap3xxx_restart(char mode, const char *cmd)
+void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
 {
 	omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0));
 	omap3xxx_prm_dpll3_reset(); /* never returns */
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 38cd3a69cff3..57911430324e 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -23,6 +23,7 @@
 #include <linux/export.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/of_address.h>
+#include <linux/reboot.h>
 
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/map.h>
diff --git a/arch/arm/mach-omap2/omap4-restart.c b/arch/arm/mach-omap2/omap4-restart.c
index f90e02e11898..41dfd7da8170 100644
--- a/arch/arm/mach-omap2/omap4-restart.c
+++ b/arch/arm/mach-omap2/omap4-restart.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/reboot.h>
 #include "prminst44xx.h"
 
 /**
@@ -18,7 +19,7 @@
  * Resets the SoC.  For @cmd, see the 'reboot' syscall in
  * kernel/sys.c.  No return value.
  */
-void omap44xx_restart(char mode, const char *cmd)
+void omap44xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	/* XXX Should save 'cmd' into scratchpad for use after reboot */
 	omap4_prminst_global_warm_sw_reset(); /* never returns */
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index f8a6db9239bf..b41599f98a8e 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -347,7 +347,7 @@ void __init orion5x_init(void)
 	orion5x_wdt_init();
 }
 
-void orion5x_restart(char mode, const char *cmd)
+void orion5x_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Enable and issue soft reset
diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h
index cdaa01f3d186..a909afb384fb 100644
--- a/arch/arm/mach-orion5x/common.h
+++ b/arch/arm/mach-orion5x/common.h
@@ -1,6 +1,8 @@
 #ifndef __ARCH_ORION5X_COMMON_H
 #define __ARCH_ORION5X_COMMON_H
 
+#include <linux/reboot.h>
+
 struct dsa_platform_data;
 struct mv643xx_eth_platform_data;
 struct mv_sata_platform_data;
@@ -29,7 +31,7 @@ void orion5x_spi_init(void);
 void orion5x_uart0_init(void);
 void orion5x_uart1_init(void);
 void orion5x_xor_init(void);
-void orion5x_restart(char, const char *);
+void orion5x_restart(enum reboot_mode, const char *);
 
 /*
  * PCIe/PCI functions.
diff --git a/arch/arm/mach-orion5x/ls-chl-setup.c b/arch/arm/mach-orion5x/ls-chl-setup.c
index 24f4e14e5893..6234977b5aea 100644
--- a/arch/arm/mach-orion5x/ls-chl-setup.c
+++ b/arch/arm/mach-orion5x/ls-chl-setup.c
@@ -139,7 +139,7 @@ static struct mv_sata_platform_data lschl_sata_data = {
 
 static void lschl_power_off(void)
 {
-	orion5x_restart('h', NULL);
+	orion5x_restart(REBOOT_HARD, NULL);
 }
 
 /*****************************************************************************
diff --git a/arch/arm/mach-orion5x/ls_hgl-setup.c b/arch/arm/mach-orion5x/ls_hgl-setup.c
index fc653bb41e78..fe04c4b64569 100644
--- a/arch/arm/mach-orion5x/ls_hgl-setup.c
+++ b/arch/arm/mach-orion5x/ls_hgl-setup.c
@@ -185,7 +185,7 @@ static struct mv_sata_platform_data ls_hgl_sata_data = {
 
 static void ls_hgl_power_off(void)
 {
-	orion5x_restart('h', NULL);
+	orion5x_restart(REBOOT_HARD, NULL);
 }
 
 
diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c
index 18e66e617dc2..ca4dbe973daf 100644
--- a/arch/arm/mach-orion5x/lsmini-setup.c
+++ b/arch/arm/mach-orion5x/lsmini-setup.c
@@ -185,7 +185,7 @@ static struct mv_sata_platform_data lsmini_sata_data = {
 
 static void lsmini_power_off(void)
 {
-	orion5x_restart('h', NULL);
+	orion5x_restart(REBOOT_HARD, NULL);
 }
 
 
diff --git a/arch/arm/mach-picoxcell/common.c b/arch/arm/mach-picoxcell/common.c
index b13f51bc35cf..ec79fea82704 100644
--- a/arch/arm/mach-picoxcell/common.c
+++ b/arch/arm/mach-picoxcell/common.c
@@ -11,6 +11,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
+#include <linux/reboot.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -63,7 +64,7 @@ static const char *picoxcell_dt_match[] = {
 	NULL
 };
 
-static void picoxcell_wdt_restart(char mode, const char *cmd)
+static void picoxcell_wdt_restart(enum reboot_mode mode, const char *cmd)
 {
 	/*
 	 * Configure the watchdog to reset with the shortest possible timeout
diff --git a/arch/arm/mach-prima2/common.h b/arch/arm/mach-prima2/common.h
index 81135cd88e54..a6304858474a 100644
--- a/arch/arm/mach-prima2/common.h
+++ b/arch/arm/mach-prima2/common.h
@@ -10,6 +10,8 @@
 #define __MACH_PRIMA2_COMMON_H__
 
 #include <linux/init.h>
+#include <linux/reboot.h>
+
 #include <asm/mach/time.h>
 #include <asm/exception.h>
 
@@ -22,7 +24,7 @@ extern void sirfsoc_cpu_die(unsigned int cpu);
 
 extern void __init sirfsoc_of_irq_init(void);
 extern void __init sirfsoc_of_clk_init(void);
-extern void sirfsoc_restart(char, const char *);
+extern void sirfsoc_restart(enum reboot_mode, const char *);
 extern asmlinkage void __exception_irq_entry sirfsoc_handle_irq(struct pt_regs *regs);
 
 #ifndef CONFIG_DEBUG_LL
diff --git a/arch/arm/mach-prima2/rstc.c b/arch/arm/mach-prima2/rstc.c
index d5e0cbc934c0..ccb53391147a 100644
--- a/arch/arm/mach-prima2/rstc.c
+++ b/arch/arm/mach-prima2/rstc.c
@@ -13,6 +13,7 @@
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/reboot.h>
 
 void __iomem *sirfsoc_rstc_base;
 static DEFINE_MUTEX(rstc_lock);
@@ -84,7 +85,7 @@ int sirfsoc_reset_device(struct device *dev)
 
 #define SIRFSOC_SYS_RST_BIT  BIT(31)
 
-void sirfsoc_restart(char mode, const char *cmd)
+void sirfsoc_restart(enum reboot_mode mode, const char *cmd)
 {
 	writel(SIRFSOC_SYS_RST_BIT, sirfsoc_rstc_base);
 }
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index a5b8fead7d61..f162f1b77cd2 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -663,16 +663,16 @@ static void corgi_poweroff(void)
 		/* Green LED off tells the bootloader to halt */
 		gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
 
-	pxa_restart('h', NULL);
+	pxa_restart(REBOOT_HARD, NULL);
 }
 
-static void corgi_restart(char mode, const char *cmd)
+static void corgi_restart(enum reboot_mode mode, const char *cmd)
 {
 	if (!machine_is_corgi())
 		/* Green LED on tells the bootloader to reboot */
 		gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
 
-	pxa_restart('h', cmd);
+	pxa_restart(REBOOT_HARD, cmd);
 }
 
 static void __init corgi_init(void)
diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index fd7ea39b78c0..8963984d1f43 100644
--- a/arch/arm/mach-pxa/generic.h
+++ b/arch/arm/mach-pxa/generic.h
@@ -9,6 +9,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/reboot.h>
+
 struct irq_data;
 
 extern void pxa_timer_init(void);
@@ -56,4 +58,4 @@ void __init pxa_set_btuart_info(void *info);
 void __init pxa_set_stuart_info(void *info);
 void __init pxa_set_hwuart_info(void *info);
 
-void pxa_restart(char, const char *);
+void pxa_restart(enum reboot_mode, const char *);
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index e6b0a936c150..acc9d3cc0762 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -37,6 +37,7 @@
 #include <linux/wm97xx.h>
 #include <linux/mtd/physmap.h>
 #include <linux/usb/gpio_vbus.h>
+#include <linux/reboot.h>
 #include <linux/regulator/max1586.h>
 #include <linux/slab.h>
 #include <linux/i2c/pxa-i2c.h>
@@ -696,13 +697,13 @@ static void mioa701_machine_exit(void);
 static void mioa701_poweroff(void)
 {
 	mioa701_machine_exit();
-	pxa_restart('s', NULL);
+	pxa_restart(REBOOT_SOFT, NULL);
 }
 
-static void mioa701_restart(char c, const char *cmd)
+static void mioa701_restart(enum reboot_mode c, const char *cmd)
 {
 	mioa701_machine_exit();
-	pxa_restart('s', cmd);
+	pxa_restart(REBOOT_SOFT, cmd);
 }
 
 static struct gpio global_gpios[] = {
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 50ccd5f1d560..711d37e26bd8 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -422,7 +422,7 @@ static struct i2c_board_info __initdata poodle_i2c_devices[] = {
 
 static void poodle_poweroff(void)
 {
-	pxa_restart('h', NULL);
+	pxa_restart(REBOOT_HARD, NULL);
 }
 
 static void __init poodle_init(void)
diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c
index 3fab583755d4..0d5dd646f61f 100644
--- a/arch/arm/mach-pxa/reset.c
+++ b/arch/arm/mach-pxa/reset.c
@@ -83,7 +83,7 @@ static void do_hw_reset(void)
 	writel_relaxed(readl_relaxed(OSCR) + 368640, OSMR3);
 }
 
-void pxa_restart(char mode, const char *cmd)
+void pxa_restart(enum reboot_mode mode, const char *cmd)
 {
 	local_irq_disable();
 	local_fiq_disable();
@@ -91,14 +91,14 @@ void pxa_restart(char mode, const char *cmd)
 	clear_reset_status(RESET_STATUS_ALL);
 
 	switch (mode) {
-	case 's':
+	case REBOOT_SOFT:
 		/* Jump into ROM at address 0 */
 		soft_restart(0);
 		break;
-	case 'g':
+	case REBOOT_GPIO:
 		do_gpio_reset();
 		break;
-	case 'h':
+	case REBOOT_HARD:
 	default:
 		do_hw_reset();
 		break;
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index c3c00424bb35..2125df0444e7 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -31,6 +31,7 @@
 #include <linux/regulator/machine.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/reboot.h>
 
 #include <asm/setup.h>
 #include <asm/mach-types.h>
@@ -924,10 +925,10 @@ static inline void spitz_i2c_init(void) {}
  ******************************************************************************/
 static void spitz_poweroff(void)
 {
-	pxa_restart('g', NULL);
+	pxa_restart(REBOOT_GPIO, NULL);
 }
 
-static void spitz_restart(char mode, const char *cmd)
+static void spitz_restart(enum reboot_mode mode, const char *cmd)
 {
 	uint32_t msc0 = __raw_readl(MSC0);
 	/* Bootloader magic for a reboot */
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index a41992fea720..0206b915a6f6 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -36,6 +36,7 @@
 #include <linux/input/matrix_keypad.h>
 #include <linux/i2c/pxa-i2c.h>
 #include <linux/usb/gpio_vbus.h>
+#include <linux/reboot.h>
 
 #include <asm/setup.h>
 #include <asm/mach-types.h>
@@ -911,10 +912,10 @@ static struct platform_device *devices[] __initdata = {
 
 static void tosa_poweroff(void)
 {
-	pxa_restart('g', NULL);
+	pxa_restart(REBOOT_GPIO, NULL);
 }
 
-static void tosa_restart(char mode, const char *cmd)
+static void tosa_restart(enum reboot_mode mode, const char *cmd)
 {
 	uint32_t msc0 = __raw_readl(MSC0);
 
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 5b1c8bfe6fa9..c85ddb2a0ad0 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -29,6 +29,7 @@
 #include <linux/io.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_data/clk-realview.h>
+#include <linux/reboot.h>
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
@@ -418,7 +419,7 @@ static void __init realview_eb_timer_init(void)
 	realview_eb_twd_init();
 }
 
-static void realview_eb_restart(char mode, const char *cmd)
+static void realview_eb_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index d5e83a1f6982..c5eade76461b 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -31,6 +31,7 @@
 #include <linux/io.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_data/clk-realview.h>
+#include <linux/reboot.h>
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
@@ -329,7 +330,7 @@ static void __init realview_pb1176_timer_init(void)
 	realview_timer_init(IRQ_DC1176_TIMER0);
 }
 
-static void realview_pb1176_restart(char mode, const char *cmd)
+static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index c3cfe213b5e6..f4b0962578fe 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -29,6 +29,7 @@
 #include <linux/io.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_data/clk-realview.h>
+#include <linux/reboot.h>
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
@@ -316,7 +317,7 @@ static void __init realview_pb11mp_timer_init(void)
 	realview_pb11mp_twd_init();
 }
 
-static void realview_pb11mp_restart(char mode, const char *cmd)
+static void realview_pb11mp_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index dde652a59620..10a3e1d76891 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -29,6 +29,7 @@
 #include <linux/io.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_data/clk-realview.h>
+#include <linux/reboot.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
@@ -264,7 +265,7 @@ static void __init realview_pba8_timer_init(void)
 	realview_timer_init(IRQ_PBA8_TIMER0_1);
 }
 
-static void realview_pba8_restart(char mode, const char *cmd)
+static void realview_pba8_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c
index 54f0185b01e3..9d75493e3f0c 100644
--- a/arch/arm/mach-realview/realview_pbx.c
+++ b/arch/arm/mach-realview/realview_pbx.c
@@ -28,6 +28,7 @@
 #include <linux/io.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_data/clk-realview.h>
+#include <linux/reboot.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
@@ -344,7 +345,7 @@ static void realview_pbx_fixup(struct tag *tags, char **from,
 #endif
 }
 
-static void realview_pbx_restart(char mode, const char *cmd)
+static void realview_pbx_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c
index a302cf5e0fc7..09d602b10d57 100644
--- a/arch/arm/mach-rpc/riscpc.c
+++ b/arch/arm/mach-rpc/riscpc.c
@@ -20,6 +20,7 @@
 #include <linux/ata_platform.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
+#include <linux/reboot.h>
 
 #include <asm/elf.h>
 #include <asm/mach-types.h>
@@ -201,7 +202,7 @@ static int __init rpc_init(void)
 
 arch_initcall(rpc_init);
 
-static void rpc_restart(char mode, const char *cmd)
+static void rpc_restart(enum reboot_mode mode, const char *cmd)
 {
 	iomd_writeb(0, IOMD_ROMCR0);
 
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
index 307c3714be55..84b280654f4c 100644
--- a/arch/arm/mach-s3c24xx/common.h
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -12,6 +12,8 @@
 #ifndef __ARCH_ARM_MACH_S3C24XX_COMMON_H
 #define __ARCH_ARM_MACH_S3C24XX_COMMON_H __FILE__
 
+#include <linux/reboot.h>
+
 struct s3c2410_uartcfg;
 
 #ifdef CONFIG_CPU_S3C2410
@@ -20,7 +22,7 @@ extern  int s3c2410a_init(void);
 extern void s3c2410_map_io(void);
 extern void s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 extern void s3c2410_init_clocks(int xtal);
-extern void s3c2410_restart(char mode, const char *cmd);
+extern void s3c2410_restart(enum reboot_mode mode, const char *cmd);
 extern void s3c2410_init_irq(void);
 #else
 #define s3c2410_init_clocks NULL
@@ -36,7 +38,7 @@ extern void s3c2412_map_io(void);
 extern void s3c2412_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 extern void s3c2412_init_clocks(int xtal);
 extern  int s3c2412_baseclk_add(void);
-extern void s3c2412_restart(char mode, const char *cmd);
+extern void s3c2412_restart(enum reboot_mode mode, const char *cmd);
 extern void s3c2412_init_irq(void);
 #else
 #define s3c2412_init_clocks NULL
@@ -51,7 +53,7 @@ extern void s3c2416_map_io(void);
 extern void s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 extern void s3c2416_init_clocks(int xtal);
 extern  int s3c2416_baseclk_add(void);
-extern void s3c2416_restart(char mode, const char *cmd);
+extern void s3c2416_restart(enum reboot_mode mode, const char *cmd);
 extern void s3c2416_init_irq(void);
 
 extern struct syscore_ops s3c2416_irq_syscore_ops;
@@ -66,7 +68,7 @@ extern struct syscore_ops s3c2416_irq_syscore_ops;
 extern void s3c244x_map_io(void);
 extern void s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 extern void s3c244x_init_clocks(int xtal);
-extern void s3c244x_restart(char mode, const char *cmd);
+extern void s3c244x_restart(enum reboot_mode mode, const char *cmd);
 #else
 #define s3c244x_init_clocks NULL
 #define s3c244x_init_uarts NULL
@@ -96,7 +98,7 @@ extern void s3c2443_map_io(void);
 extern void s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 extern void s3c2443_init_clocks(int xtal);
 extern  int s3c2443_baseclk_add(void);
-extern void s3c2443_restart(char mode, const char *cmd);
+extern void s3c2443_restart(enum reboot_mode mode, const char *cmd);
 extern void s3c2443_init_irq(void);
 #else
 #define s3c2443_init_clocks NULL
diff --git a/arch/arm/mach-s3c24xx/s3c2410.c b/arch/arm/mach-s3c24xx/s3c2410.c
index ff384acc65b2..34676d1d5fec 100644
--- a/arch/arm/mach-s3c24xx/s3c2410.c
+++ b/arch/arm/mach-s3c24xx/s3c2410.c
@@ -22,6 +22,7 @@
 #include <linux/syscore_ops.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 #include <linux/io.h>
 
 #include <asm/mach/arch.h>
@@ -196,9 +197,9 @@ int __init s3c2410a_init(void)
 	return s3c2410_init();
 }
 
-void s3c2410_restart(char mode, const char *cmd)
+void s3c2410_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's') {
+	if (mode == REBOOT_SOFT) {
 		soft_restart(0);
 	}
 
diff --git a/arch/arm/mach-s3c24xx/s3c2412.c b/arch/arm/mach-s3c24xx/s3c2412.c
index 0f864d4c97de..0251650cbf80 100644
--- a/arch/arm/mach-s3c24xx/s3c2412.c
+++ b/arch/arm/mach-s3c24xx/s3c2412.c
@@ -22,6 +22,7 @@
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -129,9 +130,9 @@ static void s3c2412_idle(void)
 	cpu_do_idle();
 }
 
-void s3c2412_restart(char mode, const char *cmd)
+void s3c2412_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's')
+	if (mode == REBOOT_SOFT)
 		soft_restart(0);
 
 	/* errata "Watch-dog/Software Reset Problem" specifies that
diff --git a/arch/arm/mach-s3c24xx/s3c2416.c b/arch/arm/mach-s3c24xx/s3c2416.c
index b9c5d382dafb..9ef3ccfbe196 100644
--- a/arch/arm/mach-s3c24xx/s3c2416.c
+++ b/arch/arm/mach-s3c24xx/s3c2416.c
@@ -35,6 +35,7 @@
 #include <linux/syscore_ops.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -79,9 +80,9 @@ static struct device s3c2416_dev = {
 	.bus		= &s3c2416_subsys,
 };
 
-void s3c2416_restart(char mode, const char *cmd)
+void s3c2416_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's')
+	if (mode == REBOOT_SOFT)
 		soft_restart(0);
 
 	__raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
diff --git a/arch/arm/mach-s3c24xx/s3c2443.c b/arch/arm/mach-s3c24xx/s3c2443.c
index 8328cd65bf3d..b6c71918b25c 100644
--- a/arch/arm/mach-s3c24xx/s3c2443.c
+++ b/arch/arm/mach-s3c24xx/s3c2443.c
@@ -22,6 +22,7 @@
 #include <linux/device.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -59,9 +60,9 @@ static struct device s3c2443_dev = {
 	.bus		= &s3c2443_subsys,
 };
 
-void s3c2443_restart(char mode, const char *cmd)
+void s3c2443_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's')
+	if (mode == REBOOT_SOFT)
 		soft_restart(0);
 
 	__raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
diff --git a/arch/arm/mach-s3c24xx/s3c244x.c b/arch/arm/mach-s3c24xx/s3c244x.c
index d0423e2544c1..911b555029fc 100644
--- a/arch/arm/mach-s3c24xx/s3c244x.c
+++ b/arch/arm/mach-s3c24xx/s3c244x.c
@@ -18,6 +18,7 @@
 #include <linux/init.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 #include <linux/device.h>
 #include <linux/syscore_ops.h>
 #include <linux/clk.h>
@@ -198,9 +199,9 @@ struct syscore_ops s3c244x_pm_syscore_ops = {
 	.resume		= s3c244x_resume,
 };
 
-void s3c244x_restart(char mode, const char *cmd)
+void s3c244x_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's')
+	if (mode == REBOOT_SOFT)
 		soft_restart(0);
 
 	samsung_wdt_reset();
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 1aed6f4be1ce..3f62e467b129 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -21,6 +21,7 @@
 #include <linux/ioport.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
 #include <linux/irq.h>
@@ -381,9 +382,9 @@ static int __init s3c64xx_init_irq_eint(void)
 }
 arch_initcall(s3c64xx_init_irq_eint);
 
-void s3c64xx_restart(char mode, const char *cmd)
+void s3c64xx_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode != 's')
+	if (mode != REBOOT_SOFT)
 		samsung_wdt_reset();
 
 	/* if all else fails, or mode was for soft, jump to 0 */
diff --git a/arch/arm/mach-s3c64xx/common.h b/arch/arm/mach-s3c64xx/common.h
index 6cfc99bdfb37..e8f990b37665 100644
--- a/arch/arm/mach-s3c64xx/common.h
+++ b/arch/arm/mach-s3c64xx/common.h
@@ -17,13 +17,15 @@
 #ifndef __ARCH_ARM_MACH_S3C64XX_COMMON_H
 #define __ARCH_ARM_MACH_S3C64XX_COMMON_H
 
+#include <linux/reboot.h>
+
 void s3c64xx_init_irq(u32 vic0, u32 vic1);
 void s3c64xx_init_io(struct map_desc *mach_desc, int size);
 
 void s3c64xx_register_clocks(unsigned long xtal, unsigned armclk_limit);
 void s3c64xx_setup_clocks(void);
 
-void s3c64xx_restart(char mode, const char *cmd);
+void s3c64xx_restart(enum reboot_mode mode, const char *cmd);
 void s3c64xx_init_late(void);
 
 #ifdef CONFIG_CPU_S3C6400
diff --git a/arch/arm/mach-s5p64x0/common.c b/arch/arm/mach-s5p64x0/common.c
index 76d0053bf564..dfdfdc320ce7 100644
--- a/arch/arm/mach-s5p64x0/common.c
+++ b/arch/arm/mach-s5p64x0/common.c
@@ -24,6 +24,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/gpio.h>
 #include <linux/irq.h>
+#include <linux/reboot.h>
 
 #include <asm/irq.h>
 #include <asm/proc-fns.h>
@@ -439,9 +440,9 @@ static int __init s5p64x0_init_irq_eint(void)
 }
 arch_initcall(s5p64x0_init_irq_eint);
 
-void s5p64x0_restart(char mode, const char *cmd)
+void s5p64x0_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode != 's')
+	if (mode != REBOOT_SOFT)
 		samsung_wdt_reset();
 
 	soft_restart(0);
diff --git a/arch/arm/mach-s5p64x0/common.h b/arch/arm/mach-s5p64x0/common.h
index f8a60fdc5884..f3a9b43cba4a 100644
--- a/arch/arm/mach-s5p64x0/common.h
+++ b/arch/arm/mach-s5p64x0/common.h
@@ -12,6 +12,8 @@
 #ifndef __ARCH_ARM_MACH_S5P64X0_COMMON_H
 #define __ARCH_ARM_MACH_S5P64X0_COMMON_H
 
+#include <linux/reboot.h>
+
 void s5p6440_init_irq(void);
 void s5p6450_init_irq(void);
 void s5p64x0_init_io(struct map_desc *mach_desc, int size);
@@ -22,7 +24,7 @@ void s5p6440_setup_clocks(void);
 void s5p6450_register_clocks(void);
 void s5p6450_setup_clocks(void);
 
-void s5p64x0_restart(char mode, const char *cmd);
+void s5p64x0_restart(enum reboot_mode mode, const char *cmd);
 
 #ifdef CONFIG_CPU_S5P6440
 
diff --git a/arch/arm/mach-s5pc100/common.c b/arch/arm/mach-s5pc100/common.c
index 511031564d35..4bdfecf6d024 100644
--- a/arch/arm/mach-s5pc100/common.c
+++ b/arch/arm/mach-s5pc100/common.c
@@ -24,6 +24,7 @@
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
+#include <linux/reboot.h>
 
 #include <asm/irq.h>
 #include <asm/proc-fns.h>
@@ -217,9 +218,9 @@ void __init s5pc100_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 	s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
 }
 
-void s5pc100_restart(char mode, const char *cmd)
+void s5pc100_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode != 's')
+	if (mode != REBOOT_SOFT)
 		samsung_wdt_reset();
 
 	soft_restart(0);
diff --git a/arch/arm/mach-s5pc100/common.h b/arch/arm/mach-s5pc100/common.h
index c41f912e9e1f..08d782d65d7b 100644
--- a/arch/arm/mach-s5pc100/common.h
+++ b/arch/arm/mach-s5pc100/common.h
@@ -12,13 +12,15 @@
 #ifndef __ARCH_ARM_MACH_S5PC100_COMMON_H
 #define __ARCH_ARM_MACH_S5PC100_COMMON_H
 
+#include <linux/reboot.h>
+
 void s5pc100_init_io(struct map_desc *mach_desc, int size);
 void s5pc100_init_irq(void);
 
 void s5pc100_register_clocks(void);
 void s5pc100_setup_clocks(void);
 
-void s5pc100_restart(char mode, const char *cmd);
+void s5pc100_restart(enum reboot_mode mode, const char *cmd);
 
 extern  int s5pc100_init(void);
 extern void s5pc100_map_io(void);
diff --git a/arch/arm/mach-s5pv210/common.c b/arch/arm/mach-s5pv210/common.c
index 9dfe93e2624d..023f1a796a9c 100644
--- a/arch/arm/mach-s5pv210/common.c
+++ b/arch/arm/mach-s5pv210/common.c
@@ -143,7 +143,7 @@ static struct map_desc s5pv210_iodesc[] __initdata = {
 	}
 };
 
-void s5pv210_restart(char mode, const char *cmd)
+void s5pv210_restart(enum reboot_mode mode, const char *cmd)
 {
 	__raw_writel(0x1, S5P_SWRESET);
 }
diff --git a/arch/arm/mach-s5pv210/common.h b/arch/arm/mach-s5pv210/common.h
index 0a1cc0aef720..fe1beb54e548 100644
--- a/arch/arm/mach-s5pv210/common.h
+++ b/arch/arm/mach-s5pv210/common.h
@@ -12,13 +12,15 @@
 #ifndef __ARCH_ARM_MACH_S5PV210_COMMON_H
 #define __ARCH_ARM_MACH_S5PV210_COMMON_H
 
+#include <linux/reboot.h>
+
 void s5pv210_init_io(struct map_desc *mach_desc, int size);
 void s5pv210_init_irq(void);
 
 void s5pv210_register_clocks(void);
 void s5pv210_setup_clocks(void);
 
-void s5pv210_restart(char mode, const char *cmd);
+void s5pv210_restart(enum reboot_mode mode, const char *cmd);
 
 extern  int s5pv210_init(void);
 extern void s5pv210_map_io(void);
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 9db3e98e8b85..f25b6119e028 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -19,6 +19,7 @@
 #include <linux/cpufreq.h>
 #include <linux/ioport.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 
 #include <video/sa1100fb.h>
 
@@ -131,9 +132,9 @@ static void sa1100_power_off(void)
 	PMCR = PMCR_SF;
 }
 
-void sa11x0_restart(char mode, const char *cmd)
+void sa11x0_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's') {
+	if (mode == REBOOT_SOFT) {
 		/* Jump into ROM at address 0 */
 		soft_restart(0);
 	} else {
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index 2abc6a1f6e86..9a33695c9492 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -3,12 +3,13 @@
  *
  * Author: Nicolas Pitre
  */
+#include <linux/reboot.h>
 
 extern void sa1100_timer_init(void);
 extern void __init sa1100_map_io(void);
 extern void __init sa1100_init_irq(void);
 extern void __init sa1100_init_gpio(void);
-extern void sa11x0_restart(char, const char *);
+extern void sa11x0_restart(enum reboot_mode, const char *);
 extern void sa11x0_init_late(void);
 
 #define SET_BANK(__nr,__start,__size) \
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
index 153555724988..1d32c5e8eab6 100644
--- a/arch/arm/mach-shark/core.c
+++ b/arch/arm/mach-shark/core.c
@@ -11,6 +11,7 @@
 #include <linux/serial_8250.h>
 #include <linux/io.h>
 #include <linux/cpu.h>
+#include <linux/reboot.h>
 
 #include <asm/setup.h>
 #include <asm/mach-types.h>
@@ -24,7 +25,7 @@
 #define ROMCARD_SIZE            0x08000000
 #define ROMCARD_START           0x10000000
 
-static void shark_restart(char mode, const char *cmd)
+static void shark_restart(enum reboot_mode mode, const char *cmd)
 {
         short temp;
         /* Reset the Machine via pc[3] of the sequoia chipset */
diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index 44a621505eeb..45221fd7e25d 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -42,6 +42,7 @@
 #include <linux/mmc/sh_mmcif.h>
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/i2c-gpio.h>
+#include <linux/reboot.h>
 #include <mach/common.h>
 #include <mach/irqs.h>
 #include <mach/r8a7740.h>
@@ -1259,7 +1260,7 @@ static void __init eva_add_early_devices(void)
 }
 
 #define RESCNT2 IOMEM(0xe6188020)
-static void eva_restart(char mode, const char *cmd)
+static void eva_restart(enum reboot_mode mode, const char *cmd)
 {
 	/* Do soft power on reset */
 	writel((1 << 31), RESCNT2);
diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index 165483c9bee2..1068120d339f 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -34,6 +34,7 @@
 #include <linux/pinctrl/machine.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/smsc911x.h>
@@ -890,7 +891,7 @@ static void __init kzm_init(void)
 	sh73a0_pm_init();
 }
 
-static void kzm9g_restart(char mode, const char *cmd)
+static void kzm9g_restart(enum reboot_mode mode, const char *cmd)
 {
 #define RESCNT2 IOMEM(0xe6188020)
 	/* Do soft power on reset */
diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 8ea11b472b91..bfce9641e32f 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -19,6 +19,7 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
+#include <linux/reboot.h>
 
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
@@ -89,13 +90,13 @@ static void __init socfpga_init_irq(void)
 	socfpga_sysmgr_init();
 }
 
-static void socfpga_cyclone5_restart(char mode, const char *cmd)
+static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd)
 {
 	u32 temp;
 
 	temp = readl(rst_manager_base_addr + SOCFPGA_RSTMGR_CTRL);
 
-	if (mode == 'h')
+	if (mode == REBOOT_HARD)
 		temp |= RSTMGR_CTRL_SWCOLDRSTREQ;
 	else
 		temp |= RSTMGR_CTRL_SWWARMRSTREQ;
diff --git a/arch/arm/mach-spear/generic.h b/arch/arm/mach-spear/generic.h
index a9fd45362fee..904f2c907b46 100644
--- a/arch/arm/mach-spear/generic.h
+++ b/arch/arm/mach-spear/generic.h
@@ -16,6 +16,8 @@
 #include <linux/dmaengine.h>
 #include <linux/amba/pl08x.h>
 #include <linux/init.h>
+#include <linux/reboot.h>
+
 #include <asm/mach/time.h>
 
 extern void spear13xx_timer_init(void);
@@ -32,7 +34,7 @@ void __init spear6xx_clk_init(void __iomem *misc_base);
 void __init spear13xx_map_io(void);
 void __init spear13xx_l2x0_init(void);
 
-void spear_restart(char, const char *);
+void spear_restart(enum reboot_mode, const char *);
 
 void spear13xx_secondary_startup(void);
 void __cpuinit spear13xx_cpu_die(unsigned int cpu);
diff --git a/arch/arm/mach-spear/restart.c b/arch/arm/mach-spear/restart.c
index 2b44500bb718..ce5e098c4888 100644
--- a/arch/arm/mach-spear/restart.c
+++ b/arch/arm/mach-spear/restart.c
@@ -12,14 +12,15 @@
  */
 #include <linux/io.h>
 #include <linux/amba/sp810.h>
+#include <linux/reboot.h>
 #include <asm/system_misc.h>
 #include <mach/spear.h>
 #include "generic.h"
 
 #define SPEAR13XX_SYS_SW_RES			(VA_MISC_BASE + 0x204)
-void spear_restart(char mode, const char *cmd)
+void spear_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's') {
+	if (mode == REBOOT_SOFT) {
 		/* software reset, Jump into ROM at address 0 */
 		soft_restart(0);
 	} else {
diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index 84485a10fc3a..38a3c55527c8 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -18,6 +18,7 @@
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
+#include <linux/reboot.h>
 
 #include <linux/clk/sunxi.h>
 
@@ -33,7 +34,7 @@
 
 static void __iomem *wdt_base;
 
-static void sun4i_restart(char mode, const char *cmd)
+static void sun4i_restart(enum reboot_mode mode, const char *cmd)
 {
 	if (!wdt_base)
 		return;
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index 1787327fae3a..9a6659fe2dc2 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -23,8 +23,9 @@
 #define __MACH_TEGRA_BOARD_H
 
 #include <linux/types.h>
+#include <linux/reboot.h>
 
-void tegra_assert_system_reset(char mode, const char *cmd);
+void tegra_assert_system_reset(enum reboot_mode mode, const char *cmd);
 
 void __init tegra_init_early(void);
 void __init tegra_map_common_io(void);
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index b25153e2ebaa..94a119a35af8 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/reboot.h>
 #include <linux/irqchip.h>
 #include <linux/clk-provider.h>
 
@@ -68,7 +69,7 @@ void __init tegra_dt_init_irq(void)
 }
 #endif
 
-void tegra_assert_system_reset(char mode, const char *cmd)
+void tegra_assert_system_reset(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
 	u32 reg;
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 4f7ac2a11452..35670b15f281 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -300,11 +300,11 @@ static void __init u300_init_check_chip(void)
 /* Forward declare this function from the watchdog */
 void coh901327_watchdog_reset(void);
 
-static void u300_restart(char mode, const char *cmd)
+static void u300_restart(enum reboot_mode mode, const char *cmd)
 {
 	switch (mode) {
-	case 's':
-	case 'h':
+	case REBOOT_SOFT:
+	case REBOOT_HARD:
 #ifdef CONFIG_COH901327_WATCHDOG
 		coh901327_watchdog_reset();
 #endif
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 54bb80b012ac..3b0572f30d56 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -38,6 +38,7 @@
 #include <linux/clkdev.h>
 #include <linux/mtd/physmap.h>
 #include <linux/bitops.h>
+#include <linux/reboot.h>
 
 #include <asm/irq.h>
 #include <asm/hardware/arm_timer.h>
@@ -733,7 +734,7 @@ static void versatile_leds_event(led_event_t ledevt)
 }
 #endif	/* CONFIG_LEDS */
 
-void versatile_restart(char mode, const char *cmd)
+void versatile_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *sys = __io_address(VERSATILE_SYS_BASE);
 	u32 val;
diff --git a/arch/arm/mach-versatile/core.h b/arch/arm/mach-versatile/core.h
index 5c1b87d1da6b..f06d5768e428 100644
--- a/arch/arm/mach-versatile/core.h
+++ b/arch/arm/mach-versatile/core.h
@@ -24,13 +24,14 @@
 
 #include <linux/amba/bus.h>
 #include <linux/of_platform.h>
+#include <linux/reboot.h>
 
 extern void __init versatile_init(void);
 extern void __init versatile_init_early(void);
 extern void __init versatile_init_irq(void);
 extern void __init versatile_map_io(void);
 extern void versatile_timer_init(void);
-extern void versatile_restart(char, const char *);
+extern void versatile_restart(enum reboot_mode, const char *);
 extern unsigned int mmc_status(struct device *dev);
 #ifdef CONFIG_OF
 extern struct of_dev_auxdata versatile_auxdata_lookup[];
diff --git a/arch/arm/mach-vt8500/vt8500.c b/arch/arm/mach-vt8500/vt8500.c
index f8f2f00856e0..eefaa60d6614 100644
--- a/arch/arm/mach-vt8500/vt8500.c
+++ b/arch/arm/mach-vt8500/vt8500.c
@@ -21,6 +21,7 @@
 #include <linux/clocksource.h>
 #include <linux/io.h>
 #include <linux/pm.h>
+#include <linux/reboot.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -46,7 +47,7 @@
 
 static void __iomem *pmc_base;
 
-void vt8500_restart(char mode, const char *cmd)
+void vt8500_restart(enum reboot_mode mode, const char *cmd)
 {
 	if (pmc_base)
 		writel(1, pmc_base + VT8500_PMSR_REG);
diff --git a/arch/arm/mach-w90x900/cpu.c b/arch/arm/mach-w90x900/cpu.c
index 9e4dd8b63c4a..b1eabaad50a5 100644
--- a/arch/arm/mach-w90x900/cpu.c
+++ b/arch/arm/mach-w90x900/cpu.c
@@ -230,9 +230,9 @@ void __init nuc900_init_clocks(void)
 #define	WTE	(1 << 7)
 #define	WTRE	(1 << 1)
 
-void nuc9xx_restart(char mode, const char *cmd)
+void nuc9xx_restart(enum reboot_mode mode, const char *cmd)
 {
-	if (mode == 's') {
+	if (mode == REBOOT_SOFT) {
 		/* Jump into ROM at address 0 */
 		soft_restart(0);
 	} else {
diff --git a/arch/arm/mach-w90x900/nuc9xx.h b/arch/arm/mach-w90x900/nuc9xx.h
index 88ef4b267089..e3ab1e1381f1 100644
--- a/arch/arm/mach-w90x900/nuc9xx.h
+++ b/arch/arm/mach-w90x900/nuc9xx.h
@@ -14,10 +14,13 @@
  * published by the Free Software Foundation.
  *
  */
+
+#include <linux/reboot.h>
+
 struct map_desc;
 
 /* core initialisation functions */
 
 extern void nuc900_init_irq(void);
 extern void nuc900_timer_init(void);
-extern void nuc9xx_restart(char, const char *);
+extern void nuc9xx_restart(enum reboot_mode, const char *);
diff --git a/arch/arm/plat-iop/gpio.c b/arch/arm/plat-iop/gpio.c
index e4de9be78feb..697de6dc4936 100644
--- a/arch/arm/plat-iop/gpio.c
+++ b/arch/arm/plat-iop/gpio.c
@@ -17,6 +17,7 @@
 #include <linux/gpio.h>
 #include <linux/export.h>
 #include <asm/hardware/iop3xx.h>
+#include <mach/gpio.h>
 
 void gpio_line_config(int line, int direction)
 {
diff --git a/arch/arm/plat-iop/restart.c b/arch/arm/plat-iop/restart.c
index 33fa699a4d28..3a4d5e5fde52 100644
--- a/arch/arm/plat-iop/restart.c
+++ b/arch/arm/plat-iop/restart.c
@@ -11,7 +11,7 @@
 #include <asm/system_misc.h>
 #include <mach/hardware.h>
 
-void iop3xx_restart(char mode, const char *cmd)
+void iop3xx_restart(enum reboot_mode mode, const char *cmd)
 {
 	*IOP3XX_PCSR = 0x30;
 
diff --git a/drivers/power/reset/restart-poweroff.c b/drivers/power/reset/restart-poweroff.c
index 059cd1501e2a..5758033e0c16 100644
--- a/drivers/power/reset/restart-poweroff.c
+++ b/drivers/power/reset/restart-poweroff.c
@@ -15,11 +15,12 @@
 #include <linux/platform_device.h>
 #include <linux/of_platform.h>
 #include <linux/module.h>
+#include <linux/reboot.h>
 #include <asm/system_misc.h>
 
 static void restart_poweroff_do_poweroff(void)
 {
-	arm_pm_restart('h', NULL);
+	arm_pm_restart(REBOOT_HARD, NULL);
 }
 
 static int restart_poweroff_probe(struct platform_device *pdev)
diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c
index 469e6962b2cf..476aa495c110 100644
--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c
@@ -48,7 +48,7 @@ static void vexpress_power_off(void)
 
 static struct device *vexpress_restart_device;
 
-static void vexpress_restart(char str, const char *cmd)
+static void vexpress_restart(enum reboot_mode reboot_mode, const char *cmd)
 {
 	vexpress_reset_do(vexpress_restart_device, "restart");
 }
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index ca29a6ffc08e..5a5d7f7e81b7 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -15,6 +15,7 @@ enum reboot_mode {
 	REBOOT_WARM,
 	REBOOT_HARD,
 	REBOOT_SOFT,
+	REBOOT_GPIO,
 };
 
 extern int register_reboot_notifier(struct notifier_block *);
diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h
index ea7168a68081..617c01b8f74a 100644
--- a/include/linux/vexpress.h
+++ b/include/linux/vexpress.h
@@ -15,6 +15,7 @@
 #define _LINUX_VEXPRESS_H
 
 #include <linux/device.h>
+#include <linux/reboot.h>
 
 #define VEXPRESS_SITE_MB		0
 #define VEXPRESS_SITE_DB1		1
-- 
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