Merge tag 'bcm2835-for-3.10-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi into next/multiplatform

From Stephen Warren <swarren@wwwdotorg.org>:

ARM: bcm2835: convert to multi-platform

This branch (patch) converts BCM2835 to support being built into a
multi-platform single zImage. This mostly entails a few small Kconfig
tweaks, move the earlyprintk implementation to the standard multi-
platform location, and deleting some unnecessary files.

* tag 'bcm2835-for-3.10-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi:
  ARM: bcm2835: convert to multi-platform

Conflicts:
	arch/arm/Kconfig
	arch/arm/Kconfig.debug
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This patch finally adds the WM8850 SoC to the multi_v7_defconfig.
We don't have a seperate defconfig for this SoC as it is only
available as a multiplatform option.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Olof Johansson <olof@lixom.net>

This series enables multiplatform support on the SIRF prima2/marco/atlas6
platform. The code was already quite tidy, so this is a relatively simple
change, and it follows similar changes we made to other ARMv7 based
platforms recently.

* prima2/multiplatform:
  ARM: sirf: enable support in multi_v7_defconfig
  ARM: sirf: enable multiplatform support
  ARM: sirf: use clocksource_of infrastructure
  ARM: sirf: move debug-macro.S to include/debug/sirf.S
  ARM: sirf: enable sparse IRQ
  ARM: sirf: move irq driver to drivers/irqchip
  ARM: sirf: fix prima2 interrupt lookup
  pinctrl: sirf: convert to linear irq domain
  clocksource: make CLOCKSOURCE_OF_DECLARE type safe
  ARM/dts: prima2: add .dtsi for atlas6 and .dts for atla6-evb board
  arm: prima2: add new SiRFatlas6 machine in common board
  ARM: smp_twd: convert to use CLKSRC_OF init
  clocksource: tegra20: use the device_node pointer passed to init
  clocksource: pass DT node pointer to init functions
  clocksource: add empty version of clocksource_of_init

Conflicts:
	arch/arm/configs/multi_v7_defconfig
	arch/arm/mach-spear/spear13xx.c
Tested-by: Barry Song <Barry.Song@csr.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This enables all sirf specific drivers in the defconfig.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Barry Song <Baohua.Song@csr.com>

All the prerequisites are there now, so we can move sirf into multiplatform.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This moves the two sirf clocksource drivers to drivers/clocksource
and integrates them into the framework for locating the clock sources
automatically.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Barry Song <Baohua.Song@csr.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>

The new style ll_debug implementation for multiplatform requires the
platform glue to be in include/debug, so let's move it there to
separate the debugging logic from the platform code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Barry Song <Baohua.Song@csr.com>

Now that both irqchips for sirf are converted to not rely on
legacy domains, let's move all of the platform over to sparse
IRQ.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This updates the irqchip drier for prima2 to the current practices by
moving it into drivers/irqchip and integrating it into the irqchip_init
infrastructure. We also now use a linear irq domain as a preparation
for sparse IRQ suport.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>

We must not read the interrupts property manually but instead
use irq_of_parse_and_map() to guarantee that we get the correct
interrupt number once we stop using the legacy IRQ domain.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Barry Song <Baohua.Song@csr.com>

The sirf platforms use no hardcoded IRQ numbers, so there is no reason to
use the legacy domain, and by converting to the linear domain, we get
a more efficient representation of sparse IRQs and remove the dependency
on the mach/irqs.h header file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>

This ensures that a function pointer passed into CLOCKSOURCE_OF_DECLARE
takes the same arguments that we use for calling that function later.

Also fix the extraneous semicolon at end of the CLOCKSOURCE_OF_DECLARE
definition.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>

The hotplug.c file uses assembly instructions that are only available
on ARMv7 but not on ARMv6. This is ok because we know that code will
only run on arm ARMv7 SPEARr13xx, but it produces build errors when
we also enable one of the ARMv6 targets in a multiplatform configuration.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The nomadik multiplatform support made it possible to select
MACH_NOMADIK_8815NHK without selecting ARCH_NOMADIK, which leads
to build errors when we also select ARMv6/v7 targets. Adding the
ifdef here restores the intended behavior.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

atlas6.dtsi is basically a copy of prima2.dtsi as most components are
compatible with prima2 except that:
1. node of l2 cache is deleted
2. node multimedia engine is deleted
3. node of sata is deleted
4. node of sdmmc4 is deleted
5. powervr is moved to "powervr,sgx510"
6. pinctrl is moved to atlas6 as pinmux layout has big changes in
   atlas6
7. clock is moved to atlas6 as clock layout has changes in atlas6
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Jiansong Chen <Jiansong.Chen@csr.com>

SiRFatlas6's machine definition is almost seem with SiRFprimaII
except that prima2 has a 256MB DMA zone.
This patch adds SiRFatlas6 machine in common board files, and
also adds atlas6 arch node in Kconfig.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The spear platform has been cleaned up a lot by Viresh
Kumar, and is relatively easy to convert to multiplatform,
getting us one more step closer to having all ARMv7
platforms included.

I originally did this before 3.8 but merging it never
worked out so far, mostly because of conflicts against
patches in the DMA tree, but also because I did not push very
hard for these.

* spear/multiplatform:
  ARM: spear: enable spear13xx in multi_v7_defconfig
  ARM: spear: fix build error in restart.c
  ARM: spear: use multiplatform configuration options.
  ARM: spear: rename duplicate pl080_plat_data
  ARM: spear: make clock driver independent of headers
  ARM: spear: move generic.h and pl080.h into private dir
  ARM: spear: move all files to mach-spear
  ARM: spear: move spear.h and misc_regs.h into plat-spear
  ARM: spear: merge Kconfig files
  ARM: spear: make spear3xx/6xx mach/spear.h files identical
  ARM: spear: move identical headers to plat-spear/include/mach
  ARM: spear: unify mach/generic.h and mach/irqs.h
  ARM: spear13xx: make mach/dma.h local
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

I've looked at all the platforms recently to see what their
state is. cns3xxx seems quite clean but not very actively
maintained. Since it is really easy to convert to multiplatform,
that's what I did here.

* cns3xxx/multiplatform:
  ARM: cns3xxx: initial DT support
  ARM: cns3xxx: enable multiplatform support
  ARM: cns3xxx: move debug_ll code to include/debug/
  ARM: cns3xxx: enable sparse IRQ support
  ARM: cns3xxx: make mach header files local
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'nomadik-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into next/multiplatform

From Linus Walleij <linus.walleij@linaro.org>:

Multiplatform support for the Nomadik
- Get rid of the last header files in the <mach/*> namespace
- Move the debug macro to the common place
- Make the necessary Kconfig fixes and move the platform Kconfig
  fragment down to the mach directory.
- Include necessary defconfig update to get the platform going.

* tag 'nomadik-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: nomadik: delete remnant include files
  ARM: nomadik: convert to multiplatform
  ARM: nomadik: move debugmacro to debug includes
  ARM: nomadik: delete IRQ header
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This adds very minimal support for booting cns3xxx using a device
tree. It should support the same devices that cns3420vb provides
but gets them from the DT. All devices that don't have their own
binding are probed through auxdata. This is completely untested
and likely incomplete.

Booting through ATAGS is made optional, so it can be turned off
by anybody who has a DTB file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This moves the cns3xxx configuration option inside of ARCH_MULTIPLATFORM,
since there is no reason for not doing it now. We can then also remove
the three header files that become obsolete.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This is needed in order to keep debug_ll functionality on
cns3xxx working when we enable ARCH_MULTIPLATFORM.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This trivially enables sparse IRQ on cns3xxx by moving the
nr_irqs definition from mach/irqs.h into the machine
descriptor. These interrupts will still get statically
assigned, so nothing changes here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The mach/cns3xxx.h and mach/pm.h header files are used only
in the platform code itself, so there is no need to make
them globally visible. This gets us closer to multiplatform
configuration for cns3xxx.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This allows BCM2835 be included in a kernel build that supports multiple
SoCs at once, which is useful for distro kernels.

This change:
* Moves bcm2835's debug-macro.S into ARM's include/debug/, and hooks it
  into the relevant menu.
* Moves bcm2835's Kconfig into its own directory, as seems typical for
  multi-platform conversions.
* Removes bcm2835_soc.h, and moves the content to the files where it was
  used; just one usage per define.
* Deletes some headers and Makefile.boot that aren't needed now that we
  support multi-platform.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>

SPEAr13xx can now be part of the regular multiplatform defconfig,
so let's enable it there.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

We can now enable mach-spear without selecting any of the
machines in a multiplatform configuration.
Doing so causes a build error that is trivial to fix by
making both the spear13xx and the spear3xx/6xx portion of
this file conditional rather than alternatives.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

The spear platform is now multiplatform capable in principle,
and everything still builds when enabled. This slightly rearranges
the Kconfig options for spear to enable both single- and multiplatform
support. As a side-effect, even building the single spear kernel
can now enable spear3xx and spear6xx simultaneously, although
not together with spear13xx, because they are a different archicture
version (v7 instead of v5).
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

Both spear3xx and spear6xx have a global symbol named
pl080_plat_data. Eventually, both should be removed, but
for now, we can rename one to pl080_plat_data and declare
it static, since that one does not actually need to be
visible outside of spear6xx.c.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

Device drivers should not access MMIO registers through hardcoded
platform specific address constants. Instead, we can pass the
MMIO token to the spear clock driver in the initialization routine
to contain that knowledge in the platform code itself.

Ideally, the clock driver would use of_iomap() or similar to
get the address, and that can be used later, but for now, this
is the minimal change.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

No file outside of mach-spear includes these files any more,
so they don't have to be globally visible now.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

There are no conflicting files between the three mach-spear* directories
and plat-spear any more, so we can now move all file to a common
mach-spear directory.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

The spear13xx version of spear.h is completely different from
the newly combined spear3xx/spear6xx version, but we can never
build ARMv5 and ARMv7 platforms together, so there is no
harm in putting all the contents into a single file and adding
appropriate ifdefs.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

As a preparation to merging the spear platforms into one directory, this
merges the four Kconfig files into one.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

The two files are almost identical already basically just differ
in the identifier names. By changing the identifiers to be the
same, we are able to merge the two as a preparation to building
a combined kernel.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

As an intermediate step towards unification of the three spear
platforms, this gets rid of the mach/* header files that are
obviously not platform specific.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

These are indeed easy to combine, as there are no conflicting
definitions in generic.h, and irqs.h will be obsolete once
we enable SPARSE_IRQ.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

There is no reason for this header file to be globally visible, so
let's just move it into the mach directory.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

Now that we have OF based init with CLKSRC_OF, convert smp_twd init
function to use it and covert all callers of
twd_local_timer_of_register.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-omap@vger.kernel.org
Cc: spear-devel@list.st.com
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>