Use helper of_platform_default_populate() in linux/of_platform
when possible, instead of calling of_platform_populate() with
the default match table.
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NRob Herring <robh@kernel.org>

Seeing the 'of' characters in a symbol that is being called from
ACPI seems to freak out people. So let's do a bit of pointless
renaming so that these folks do feel at home.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: NHanjun Guo <hanjun.guo@linaro.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Tested-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

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: NRobin 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: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This deletes the dependency on any platform data for
the COH901 pin controller. There is only one user in the
kernel, and if we at some point want to support more
variants, they shall provide their variant info through
the device tree.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Now that the core file is the only one actually using any
of the base addresses, we can delete that header and move
the base address definitions into the one and only core
file.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This adds a device tree node for the U300 system controller
and remaps this dynamically instead of using hard-coded
virtual addresses. The board power set-up code is altered
to fetch a reference to the syscon using ampersand <&syscon>
notation. This way of passing a pointer to the syscon will
also be used by the clocks.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This register base file is now only used in the machine
itself so move it down into mach-u300.
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Get rid of the <mach/syscon.h> header as a prerequisite for
multiplatform support. Do this by pushing the registers down
to their respective drivers and deleting the unused remainder.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

We have now transferred all the U300 peripherals to the device
tree, so we just select USE_OF, and delete all static board data,
then require that this platform shall be booted using the device
tree and nothing else.

This gets rid of the MMCI (PL180), PL022, and serial PL011
platform data entries and more.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This registers the U300 FSMC flash controller from the
device tree, and defines the three partitions. Skip the
BBT scan as in the current platform data.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This registers the PL022 PrimeCell from the U300 device
tree. We make a new copy of the platform data for the
device tree boot path, as the old platform data is in an
older file which will be going away.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This adds the COH 901 318 DMA controller to the U300
device tree. All devices now converted to device tree
so far will start to find their DMA channels.

Note that the U300 is not yet using the device tree
to obtain DMA channels, but this is a first step.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This adds the COH 901 331 RTC to the U300 device tree.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This adds the COH 901 327 watchdog to the U300 device tree.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This adds the two I2C busses to the device tree so these
probe properly.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This register the most basic peripherals and makes the
U300 boot to prompt from a device tree.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Now that we have VIC moved to drivers/irqchip and all VIC DT init for
platforms using irqchip_init, move gic.h and update the remaining
includes.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Alessandro Rubini <rubini@unipv.it>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Cc: STEricsson <STEricsson_nomadik_linux@list.st.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org

Now that the VIC initialization sets up the handle_arch_irq pointer, we
can remove it for all machines and make it static. Move vic_handle_irq
to avoid a forward declaration.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Hubert Feurstein <hubert.feurstein@contec.at>
Cc: Alessandro Rubini <rubini@unipv.it>
Cc: STEricsson <STEricsson_nomadik_linux@list.st.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NJamie Iles <jamie@jamieiles.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Acked-by: NOlof Johansson <olof@lixom.net>
Acked-by: NArnd Bergmann <arnd@arndb.de>

The defines in U300's <mach/coh901318.h> are now only used by
the DMA engine driver itself, so move the header down into the
DMA subsystem.
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

We're only ever going to support the U300 with this driver
so skip the separation of platform data from driver, and push
it down into the driver itself.
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This extracts the platform data that we will keep generic
from the U300 platform and associates it with the COH901318
driver in <linux/platform_data/dma-coh901318.h>.
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.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>

With recent changes in the kernel, the MMCI and PL011 UART
drivers will autonomously request their pins to be muxed in,
so this machine-specific pin hogging code is just interfering
with the proper mechanism and causing regressions in the v3.8
kernel. Delete it and the problems go away.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Let's stop spawning the pinctrl driver from the GPIO driver,
we have these two mechanisms broken apart now, and they can
each probe in isolation. If the GPIO driver cannot find its
pin controller (pinctrl-u300), the pin controller core will
tell it to defer probing.
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Reviewed-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Do not use the platform_data to pass resource and be smart in the drivers.
Just pass it via resource

Switch to devm_request_and_ioremap at the sametime
Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Reviewed-By: NVipin Kumar <vipin.kumar@st.com>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>

Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>

This switches the COH 901 pinctrl driver to allocate its GPIO
IRQs dynamically, and start to use a linear irqdomain to map
from the hardware IRQs.

This way we can cut away the complex allocation of IRQ numbers
from the <mach/irqs.h> file.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The U300 IRQs were bumped once to offset to 1 (in order to avoid
using IRQ 0 which is now NO_IRQ). This was OK as we were still
passing the number of irqs in the .nr_irqs field of the machine,
with descriptors allocated at boot time.

However .nr_irqs should be 0, leading the system to reserve the
first 16 IRQs. Then the VIC driver will complain that IRQs 1
thru 15 are pre-allocated, so to avoid this and use free
descriptors, move all IRQs up to offset 32.

This will all be done away with as we migrate to device tree,
so it is an interim solution.
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Amend the PL022 pin controller to optionally take a pin control
handle and set the state of the pins to "default" on boot and
runtime resume, and to "sleep" at runtime suspend. This way we
will dynamically save power on the SPI busses, for example some
electronic designs may be able to ground the pins when unused
instead of pull-up. Some pin controllers may want to set the
pins as wake-up sources when sleeping.

Effect on platforms using the PL022 driver:

- If the platform does not use pin control - no semantic effect,
  the pinctrl stubs will kick in and resolve the situation.

- Platforms using this driver and have pin control but no
  function defined for the PL022 need to either supply a
  "default" function in their map or enable pinctrl dummies
  so the driver is satisfied.

- Platforms using this driver with hogs for setting up the PL022
  pin control - stop using hogs to take the pl022 pin control
  handle, let the driver handle this.

I'be looked at some platforms that may be affected:

- SPEAr: appears to define the proper functions in their device
  trees and not hogging them, so things should be smooth, the
  driver will simply start to take its pins.

- Ux500: the proper function is defined and will be taken properly
  by the driver. New sleep states introduced by a separate patch to
  ux500 but no regression, since the default state is sufficient.

- U300: old hog deleted as part of this patch.

- LPC32xx: does not appear to be using pinctrl.

- ARM Integrator IMPD1, RealView & Versatile: does not use pinctrl.
Tested-by: NRoland Stigge <stigge@antcom.de>
Signed-off-by: NPatrice Chotard <patrice.chotard@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This converts the U300 to use sparse IRQs, which is simple now
that the number of machines are reduced.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

We were broadcasting <mach/dma_channels.h> to the entire kernel
for no reason at all, push this down into the machine folder
where it belongs.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This gets rid of the separate u300.c file in mach-u300 since
it can just as well live right in core.c, then we also get
rid of the broadcasted <mach/platform.h> file that is not
helping anyone. Put the interface to the system timer into
a separate header.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Move the platform-specific COH901 pin control header out of the
ARM tree and down into the proper platform data include
directory.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

As the non-U335 U300 variants are retired from the ARM tree,
also delete the pinctrl driver codepaths for these variants.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This retires the B26/S26, B330/S330 and B365/S365 boards from
the U300 platform. The only board really used anywhere today
is the S335 so let's concentrate any efforts on that one board.
Also the board variants are selected at compile-time, which is
strictly a no-no these days, if multi-board support is to be
brought back it need to happen using run-time and device tree.

My work on ARM Linux started on the B26/S26 so it's a bit sad
to see it go, but there is a time to move on with all things
in life.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This converts the U300 clock implementation over to use the common
struct clk and moves the implementation down into drivers/clk.
Since VCO isn't used in tree it was removed, it's not hard to
put it back in if need be.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
[mturquette@linaro.org: trivial Makefile conflict]
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Since the VIC was converted to use generic IRQ domains IRQ 0
is silently ignored. This IRQ is used on the U300 so we're
missing it now. Bump all IRQ numbers by one since they are
now decoupled from the hardware IRQ numbers.

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Address Latch Enable (ALE) and Command Latch Enable (CLE) defines are
platform specific and were wrongly put in driver specific fsmc.h file.
Move such defines to their respective platform.

Also instead of relying on fsmc driver, pass ALE, CLE offsets explicitly
from individual platform.
Signed-off-by: NShiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

To show how the pin configuration is used on the U300, let's
include some configs for two GPIO pins.

ChangeLog v1->v2:
- Provide a better example, set the clock return pin to pull-up
  and set the card detect pin to high impedance.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The pinctrl mapping table can now contain entries to:
* Set the mux function of a pin group
* Apply a set of pin config options to a pin or a group

This allows pinctrl_select_state() to apply pin configs settings as well
as mux settings.

v3: Fix find_pinctrl() to iterate over the correct list.
   s/_MUX_CONFIGS_/_CONFIGS_/ in mapping table macros.
   Fix documentation to use correct mapping table macro.
v2: Added numerous extra PIN_MAP_*() special-case macros.
   Fixed kerneldoc typo. Delete pinctrl_get_pin_id() and
   replace it with pin_get_from_name(). Various minor fixes.
   Updates due to rebase.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>