Since we now automatically enable early BRESP in core L2C-310 code when
we detect a Cortex-A9, we don't need platforms/SoCs to set this bit
explicitly.  Instead, they should seek to preserve the value of bit 30
in the auxiliary control register.
Acked-by: NTony Lindgren <tony@atomide.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

We have a mixture of different devices with different register layouts,
but we group all the bits together in an opaque mess.  Split them out
into those which are L2C-310 specific and ones which refer to earlier
devices.  Provide full auxiliary control register definitions.
Acked-by: NTony Lindgren <tony@atomide.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

After the restructuring of the module.h and init.h headers,
we now need to include this explicitly here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>

The exynos4_l2x0_cache_init function tries to flush the data cache
for the location of the saved l2x0 registers and pass the physical
address to the s5p-sleep implementation.

However, the s5p-sleep code is optional, and if it is disabled,
we get a linker error here when the l2x0_regs_phys variable does
not exist.

To solve this, use a compile-time conditional to drop this code
if we don't want it.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>

The big series refactoring Exynos suspend to RAM handling missed the
cpuidle driver that is disabled in exynos_defconfig, leaving it
including old mach/pm_core.h header and using old s3c_cpu_resume symbol
instead of new exynos_cpu_resume, resulting in compilation failures with
CONFIG_ARCH_EXYNOS and CONFIG_CPU_IDLE enabled.

This patch fixes that silly mistake and performs necessary modification
to arhc/arm/exynos/cpuidle.c to make it compile again.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This is a dummy placeholder file. Delete it.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch restores the ability to receive wake-up events from internal
GIC interrupts, e.g. RTC tick or alarm interrupts.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Since Exynos SoCs does not follow most of the semantics of older SoCs
when configuring the system to enter sleep, there is no reason to rely
on the legacy Samsung PM core anymore.

This patch adds local Exynos suspend ops and removes all the code left
unnecessary. As a side effect, suspend support on Exynos becomes
multiplatform-friendly.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch simplifies Exynos PM initialization and makes it
multiplatform friendly by replacing initcalls used originally to invoke
all the initialization code with explicit function calls.

In addition, an useless subsys_interface is removed, as all its .add_dev
callback did was setting two function pointers.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

CONFIG_PM means that at least one of CONFIG_PM_SLEEP and
CONFIG_PM_RUNTIME is enabled, while multiple entries in
mach-exynos/Kconfig abused it to enable sleep- and runtime-specific
functionality.

This patch fixes this abuse by replacing dependencies on CONFIG_PM with
appropriate dependencies on either CONFIG_PM_SLEEP or CONFIG_PM_RUNTIME,
whichever is appropriate.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add generic compatible strings for Exynos4 and 5 platforms so that
future SoCs can use them if there is nothing extra/specific to be
differentiated.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Since there is very little difference between these two files,
they can be easily combined into one with necessary SoC checks.
While at it also merge the common.c file into this as it does
not have any other users.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

cpu_table was used to distinguish between different Exynos4 and 5
SoCs and based on the type do the initialization and io mapping.
exynos_init is dummy and no longer needed as we do a DT based booting.
By having a common io mapping function we can get rid of the whole
table and avoid populating it for every SoC.

Tested on Exynos4210, 5250 and 5420 based boards.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Tested-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Reserve memory for MFC-v7 IP.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Reorganize code so that "plat/mfc.h" is no more referred
from mach-exynos directory.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Now that we can use the generic uncompres.h file, there is no need
for the machine specific header. Remove it.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

USB_ARCH_HAS_EHCI, USB_ARCH_HAS_OHCI, and USB_ARCH_HAS_XHCI were just
removed. Selecting them is a nop. The select statements for these
symbols can be removed too.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

plat/devs.h is not required in this file.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

regs-serial.h only includes linux/serial_s3c.h. Include this header
directly to remove unnecessary platform dependency.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
[broonie@linaro.org: Acked for S3C64XX related changes]
Acked-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

All the suspend/resume handling is already implemented in Exynos4 clock
driver, so this legacy code can be safely dropped.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: NThomas Abraham <thomas.ab@samsung.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

The EXYNOS cpuidle driver code assumes that cpuidle core will handle
dev->state_count smaller than drv->state_count but currently this is
untrue (dev->state_count is used only for handling cpuidle state sysfs
entries and drv->state_count is used for all other cases) and will not
be fixed in the future as dev->state_count is planned to be removed.

Fix the issue by checking for the max supported idle state in AFTR
state's ->enter handler (exynos4_enter_lowpower()) and entering AFTR
mode only when cores other than CPU0 are offline.
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

To make the driver multiplatform-friendly, unconditional initialization
in an initcall is replaced with a platform driver probed only if
respective platform device is registered.

Tested at: Exynos4210 (TRATS) and Exynos4412 (TRATS2)
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: NSachin Kamat <sachin.kamat@linaro.org>
Tested-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The only thing exynos_pm_late_initcall() does is calling
pm_genpd_poweroff_unused(), which is already stubbed when
CONFIG_PM_GENERIC_DOMAINS is not enabled. So replace
exynos_pm_late_initcall() with a direct call to
pm_genpd_poweroff_unused().
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Instead of repeating "select PM_GENERIC_DOMAINS" for all Exynos4
variants add relevant entry in the Kconfig section common to the
SoC series.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

While <mach/timex.h> isn't used for multi-platform builds since long it
still is for "normal" builds. As the previous patches fix all sites to
not make use of this per-platform file, it can go now for good also for
platforms that are not (yet) converted to multi-platform.

While at it there are no users of CLOCK_TICK_RATE any more, so also drop
the dummy #define.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This moves definitions for cpuidle into mach-exynos/cpuidle.c,
because we don't need to keep them in the <mach/regs-clock.h>.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This moves regarding exynos-cpufreq definitions into drivers/cpufreq/
exynos-cpufreq.h because they are used only for the cpufreq driver.

Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Some of definitions in the regs-clock.h are used only for pm.c,
so this moves them into the file.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

We don't need to keep the definitions for exynos4_bus into
mach-exynos/ so this moves them into drviers/devfreq with
adding header file.
Acked-by: NMyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Remove useless definitions in the regs-clock.h file.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Remove useless inclusion <mach/regs-irq.h> for exynos.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This moves regs-pmu.h file into mach-exynos directory.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This is needed to remove dependency of headers.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Remove useless definitions in the regs-pmu.h file.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

We have a handy macro to replace open coded __cpuc_flush_dcache_area(()
and outer_clean_range() sequences. Let's use it. No functional change.
Signed-off-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The clksrc tables are constant, they are not used to store register values
at suspend.

size arch/arm/mach-exynos/pm.o
   text	   data	    bss
   1591	    212	     12	   // Before
   1671	    132	     12	   // After
Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

These tables are all immutable, make them const to save 4416 bytes of RAM.

size arch/arm/mach-exynos/pmu.o
   text	   data	    bss
    848	   4420	      4		// before
   5264	      4	      4		// after
Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

When platform_driver_probe() is not used, bind/unbind via sysfs is
enabled.  Thus, __init annotation should be removed from probe().
Also, this patch fixes section mismatch warning.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Change raw printk() call to dev_err() to provide a better message
to userspace so it can properly identify the device.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>