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>

mach-exynos{4,5}-dt.c include several header files that are not
really used.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. While at it, also remove some now
redundant includes.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>

ARM EXYNOS cpuidle driver is currently not multiplatform support
ready (as it uses device_initcall() for initialization and doesn't
check on what platform it is running). Fix it by converting the
driver to be a platform driver and registering exynos_cpuidle
platform device from exynos[4,5]_dt_machine_init().
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>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

EXYNOS5420 is new SoC in Samsung's Exynos5 SoC series. Add
initial support for this new SoC.
Signed-off-by: NChander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Since there is no board specific mapping needed on Exynos,
exynos_init_io() can be simplified and used as map_io callback for both
Exynos4 and Exynos5.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Since both exynos4_init_irq() and exynos5_init_irq() are just calling
irqchip_init(), there is no need for them to exist any more, since this
is the default that is called when init_irq callback is not specified.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This converts arm and arm64 to use CLKSRC_OF DT based initialization for
the arch timer. A new function arch_timer_arch_init is added to allow for
arch specific setup.

This has a side effect of enabling sched_clock on omap5 and exynos5. There
should not be any reason not to use the arch timers for sched_clock.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

With support for device tree based clock lookup now available, remove
the auxdata table from exynos4/5 dt-enabled machine file.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Since the clock initialization should be completed prior to the mct
timer initialization, create a new function 'exynos_init_time' that
first sets up the clock and then invokes the timer initialization
function. The 'init_time' callback in the board files are updated to
invoke this new wrapper function.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Remove Samsung specific clock support in Exynos4/5 and migrate to
use common clock framework.
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Tested-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add entries to __clksrc_of_table so that Exynos MCT controller is
discoverable using call to clocksource_of_init. With this change,
it would be appropriate to rename the function 'exynos4_timer_init'
as 'mct_init' since it aptly describes this function. Additionally,
the 'init_time' callback of all machine descriptors for exynos
platforms that were previously set to 'exynos4_timer_init' are now
set to either 'mct_init' or 'clocksource_of_init'.

Cc: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Use AUXDATA to set the device names for DP controller instance
discovered from device tree.
Signed-off-by: NAjay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add AUXDATA entries for i2s controller driver so as to set the device
name for clock lookups
Signed-off-by: NPadmavathi Venna <padma.v@samsung.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Now that the GIC initialization sets up the handle_arch_irq pointer, we
can remove it for all machines and make it static.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: NTony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NOlof Johansson <olof@lixom.net>
Acked-by: NArnd Bergmann <arnd@arndb.de>

This removes System MMU initialization from arch/arm/mach-exynos/
to move them to DT and the exynos-iommu driver except gating clock
definitions.
Signed-off-by: NKyongHo Cho <pullip.cho@samsung.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NJoerg Roedel <joro@8bytes.org>

Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.
Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

This fixes following:
arch/arm/mach-exynos/built-in.o: In function `exynos5_reserve':
arch/arm/mach-exynos/mach-exynos5-dt.c:177: undefined reference to `s5p_fdt_find_mfc_mem'
arch/arm/mach-exynos/mach-exynos5-dt.c:177: undefined reference to `s5p_fdt_find_mfc_mem'
arch/arm/mach-exynos/mach-exynos5-dt.c:178: undefined reference to `s5p_mfc_reserve_mem'
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

The recent commit "ARM: EXYNOS: add support for EXYNOS5440 SoC" broke
support for exynos5250 because of_machine_is_compatible() was used too
early in the boot process.  It also probably meant that the exynos5440
failed to use the proper iotable.  Switch to use
of_flat_dt_is_compatible() in both of these cases.

The failure I was seeing in exynos5250 because of this was:
  Division by zero in kernel.
  [<80015ed4>] (unwind_backtrace+0x0/0xec) from [<8045c7a4>] (dump_stack+0x20/0x24)
  [<8045c7a4>] (dump_stack+0x20/0x24) from [<80012990>] (__div0+0x20/0x28)
  [<80012990>] (__div0+0x20/0x28) from [<8021ab04>] (Ldiv0_64+0x8/0x18)
  [<8021ab04>] (Ldiv0_64+0x8/0x18) from [<80068560>] (__clocksource_updatefreq_scale+0x54/0x134)
  [<80068560>] (__clocksource_updatefreq_scale+0x54/0x134) from [<8006865c>] (__clocksource_register_scale+0x1c/0x54)
  [<8006865c>] (__clocksource_register_scale+0x1c/0x54) from [<80612a18>] (exynos_timer_init+0x100/0x1e8)
  [<80612a18>] (exynos_timer_init+0x100/0x1e8) from [<8060d184>] (time_init+0x28/0x38)
  [<8060d184>] (time_init+0x28/0x38) from [<8060a754>] (start_kernel+0x1e0/0x3c8)
  [<8060a754>] (start_kernel+0x1e0/0x3c8) from [<40008078>] (0x40008078)
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
[olofj: fixed two build errors, one missing include and one !CONFIG_OF failure]
Signed-off-by: NOlof Johansson <olof@lixom.net>

This patch adds support for EXYNOS5440 SoC which is including
ARM Cortex-A15 Quad cores.
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Needed to match device ids for clocks, etc.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds Device Nodes for SATA and SATA PHY device.
Signed-off-by: NVasanth Ananthan <vasanth.a@samsung.com>
[kgene.kim@samsung.com: removed address definitions as per comments]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

On Exynos5 we have a new high-speed i2c controller. The interrupt
sources for the legacy and new controller are muxed and are controlled
via the SYSCON I2C_CFG register. At reset the interrupt source is
configured for the high-speed controller, to continue using the old
i2c controller we need to modify the I2C_CFG register.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds support for device tree based discovery for exynos5
hdmi ddc.
Signed-off-by: NRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds support for device tree based discovery for exynos5
hdmiphy.
Signed-off-by: NRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds support for device tree based discovery for exynos5
mixer. Mixer node is also renamed with "exynos5-mixer".
Signed-off-by: NRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds support for device tree based discovery for exynos5
hdmi. Hdmi node is also renamed with "exynos5-hdmi".
Signed-off-by: NRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds necessary source definations needed for TMU driver and
adds devicetree node for exynos5250.
Signed-off-by: NAmit Daniel Kachhap <amit.daniel@samsung.com>
[kgene.kim@samsung.com: used address value directly in auxdata]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds device tree entry for MFC v6 in the Exynos5
SoC. Makes the required changes in the clock files and adds
MFC to the DT device list.
Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: NArun Kumar K <arun.kk@samsung.com>
[kgene.kim@samsung.com: fixed section mismatches Seung-Woo Kim reported]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add entries if MSHC controllers in AUXDATA table for correct
device name initialization.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Convert Exynos4 to use struct smp_operations to provide its SMP
and CPU hotplug operations.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Acked-by: NNicolas Pitre <nico@linaro.org>
Tested-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

This patch adds,
- 4 G-Scaler devices to the DT device list
- G-Scaler specific entries to the machine file
- binding documentation for G-Scaler entries
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NLeela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: NShaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add the platform bits which are required to support SPI controllers.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Use AUXDATA to set the device names for controller instances
discovered from device tree.
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>

Add PDMA and MDMA physical base address macros which is
require for EXYNOS5 of_dev_auxdata setup.
Signed-off-by: NThomas Abraham <thomas.ab@samsung.com>
[kgene.kim@samsung.com: changed dma channel fo mdma1]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds a new EXYNOS5 compatible device tree enabled board
When using this, a corresponding device tree blob which describes the
board's properties should be supplied at boot time to the kernel.

Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>