Commit Graph

244 Commits

Author SHA1 Message Date
Nicolas Pitre a570067df9 ARM: big removal of now unused arch_idle()
When this is the only content remaining in mach/system.h then the
whole file is removed.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-and-tested-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-20 19:25:58 -05:00
Russell King 94ae0275d7 ARM: vexpress: fix two section mismatch warnings
WARNING: vmlinux.o(.text+0x1bc9c): Section mismatch in reference from the function ct_ca9x4_init_cpu_map() to the function .init.text:scu_get_core_count()
The function ct_ca9x4_init_cpu_map() references
the function __init scu_get_core_count().

WARNING: vmlinux.o(.text+0x1bce8): Section mismatch in reference from the function ct_ca9x4_init_cpu_map() to the function .init.text:set_smp_cross_call()
The function ct_ca9x4_init_cpu_map() references
the function __init set_smp_cross_call().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-19 17:26:29 +00:00
Olof Johansson 8b0f6d12de Merge branch 'fixes-for-arm-soc' of git://sources.calxeda.com/kernel/linux into fixes
* 'fixes-for-arm-soc' of git://sources.calxeda.com/kernel/linux:
  ARM: make BSYM macro assembly only
  ARM: highbank: remove incorrect BSYM usage
  ARM: imx: remove incorrect BSYM usage
  ARM: exynos: remove incorrect BSYM usage
  ARM: ux500: add missing ENDPROC to headsmp.S
  ARM: msm: Add missing ENDPROC to headsmp.S
  ARM: versatile: Add missing ENDPROC to headsmp.S
2012-01-16 22:46:06 -08:00
Pawel Moll 764a579fb5 ARM: versatile: Add missing ENDPROC to headsmp.S
Once the ENDPROC is in place, BSYM() in not longer necessary
to get correct pointer to versatile_secondary_startup().

Tested-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Dave Martin <dave.martin@linaro.org>
2012-01-16 08:35:25 -06:00
Linus Torvalds 7affca3537 Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits)
  arm: fix up some samsung merge sysdev conversion problems
  firmware: Fix an oops on reading fw_priv->fw in sysfs loading file
  Drivers:hv: Fix a bug in vmbus_driver_unregister()
  driver core: remove __must_check from device_create_file
  debugfs: add missing #ifdef HAS_IOMEM
  arm: time.h: remove device.h #include
  driver-core: remove sysdev.h usage.
  clockevents: remove sysdev.h
  arm: convert sysdev_class to a regular subsystem
  arm: leds: convert sysdev_class to a regular subsystem
  kobject: remove kset_find_obj_hinted()
  m86k: gpio - convert sysdev_class to a regular subsystem
  mips: txx9_sram - convert sysdev_class to a regular subsystem
  mips: 7segled - convert sysdev_class to a regular subsystem
  sh: dma - convert sysdev_class to a regular subsystem
  sh: intc - convert sysdev_class to a regular subsystem
  power: suspend - convert sysdev_class to a regular subsystem
  power: qe_ic - convert sysdev_class to a regular subsystem
  power: cmm - convert sysdev_class to a regular subsystem
  s390: time - convert sysdev_class to a regular subsystem
  ...

Fix up conflicts with 'struct sysdev' removal from various platform
drivers that got changed:
 - arch/arm/mach-exynos/cpu.c
 - arch/arm/mach-exynos/irq-eint.c
 - arch/arm/mach-s3c64xx/common.c
 - arch/arm/mach-s3c64xx/cpu.c
 - arch/arm/mach-s5p64x0/cpu.c
 - arch/arm/mach-s5pv210/common.c
 - arch/arm/plat-samsung/include/plat/cpu.h
 - arch/powerpc/kernel/sysfs.c
and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
2012-01-07 12:03:30 -08:00
Russell King 7b9dd47136 Merge branch 'restart' into for-linus
Conflicts:
	arch/arm/mach-exynos/cpu.c

The changes to arch/arm/mach-exynos/cpu.c were moved to
mach-exynos/common.c.
2012-01-05 13:25:27 +00:00
Russell King f88b8979d2 ARM: restart: remove the now empty arch_reset()
Remove the now empty arch_reset() from all the mach/system.h includes,
and remove its callsite.  Remove arm_machine_restart() as this function
no longer does anything useful.

For samsung platforms, remove the include of mach/system-reset.h and
plat/system-reset.h from their respective mach/system.h headers as these
just define their arch_reset functions.  As a result, the s3c2410 and
plat-samsung system-reset.h files are no longer referenced, so remove
these files entirely.

Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05 12:57:22 +00:00
Russell King f5733a1e80 ARM: restart: Versatile Express: use new restart hook
Hook the Versatile Express platform restart code into the new restart
hook.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05 12:57:21 +00:00
Kay Sievers edbaa603eb driver-core: remove sysdev.h usage.
The sysdev.h file should not be needed by any in-kernel code, so remove
the .h file from these random files that seem to still want to include
it.

The sysdev code will be going away soon, so this include needs to be
removed no matter what.

Cc: Jiandong Zheng <jdzheng@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: "Venkatesh Pallipadi
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
2011-12-21 16:26:03 -08:00
Russell King df0bcfe0f8 Merge branch 'arm/common-kconfig-refactor+for-rmk' of git://git.linaro.org/people/dmart/linux-2.6-arm into devel-stable 2011-12-19 21:54:35 +00:00
Dave Martin 3b55658aef ARM: SMP: Refactor Kconfig to be more maintainable
Making SMP depend on (huge list of MACH_ and ARCH_ configs) is
bothersome to maintain and likely to lead to merge conflicts.

This patch moves the knowledge of which platforms are SMP-capable
to the individual machines.  To enable this, a new HAVE_SMP config
option is introduced to allow machines to indicate that they can
run in a SMP configuration.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
        (for nomadik, ux500)
Acked-by: Tony Lindgren <tony@atomide.com>
        (for omap)
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
        (for exynos)
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
        (for imx)
Acked-by: Olof Johansson <olof@lixom.net>
        (for tegra)
2011-12-19 13:47:39 +00:00
Dave Martin ce5ea9f376 ARM: l2x0/pl310: Refactor Kconfig to be more maintainable
Making CACHE_L2X0 depend on (huge list of MACH_ and ARCH_ configs)
is bothersome to maintain and likely to lead to merge conflicts.

This patch moves the knowledge of which platforms have a L2x0 or
PL310 cache controller to the individual machines.  To enable this,
a new MIGHT_HAVE_CACHE_L2X0 config option is introduced to allow
machines to indicate that they may have such a cache controller
independently of each other.

Boards/SoCs which cannot reliably operate without the L2 cache
controller support will need to select CACHE_L2X0 directly from
their own Kconfigs instead.  This applies to some TrustZone-enabled
boards where Linux runs in the Normal World, for example.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
        (for cns3xxx)
Acked-by: Tony Lindgren <tony@atomide.com>
        (for omap)
Acked-by: Shawn Guo <shawn.guo@linaro.org>
        (for imx)
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
        (for exynos)
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
        (for imx)
Acked-by: Olof Johansson <olof@lixom.net>
        (for tegra)
2011-12-19 13:46:11 +00:00
Russell King 73829af71f Merge branch 'vmalloc' of git://git.linaro.org/people/nico/linux into devel-stable 2011-12-05 23:27:59 +00:00
Nicolas Pitre d0e6b2236a ARM: big removal of now unused vmalloc.h files
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-11-26 19:21:29 -05:00
Marc Zyngier abd3ca51fb ARM: VExpress: convert to CONFIG_MULTI_IRQ_HANDLER
Convert the VExpress platform to be using the gic_handle_irq
function as its primary interrupt handler.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2011-11-15 18:14:00 +00:00
Linus Torvalds 6585dea1f9 Merge branch 'next/cross-platform' of git://git.linaro.org/people/arnd/arm-soc
* 'next/cross-platform' of git://git.linaro.org/people/arnd/arm-soc:
  arm/imx: use Kconfig choice for low-level debug UART selection
  ARM: realview: use Kconfig choice for debug UART selection
  ARM: plat-samsung: use Kconfig choice for debug UART selection
  ARM: versatile: convert logical CPU numbers to physical numbers
  ARM: ux500: convert logical CPU numbers to physical numbers
  ARM: shmobile: convert logical CPU numbers to physical numbers
  ARM: msm: convert logical CPU numbers to physical numbers
  ARM: exynos4: convert logical CPU numbers to physical numbers

Fix up trivial conflict (config DEBUG_S3C_UART move/split vs addition of
ARM_KPROBES_TEST option) in arch/arm/Kconfig.debug
2011-11-01 20:34:22 -07:00
Grant Likely 041af835b3 gpio: Fix ARM versatile-express build failure
A missing mach/gpio.h prevents building gpiolib on versatile express.

  CC      drivers/gpio/gpiolib.o
In file included from /.../linux/include/linux/gpio.h:18:0,
                 from /.../linux/drivers/gpio/gpiolib.c:10:
/.../linux/arch/arm/include/asm/gpio.h:5:23: fatal error: mach/gpio.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/gpio/gpiolib.o] Error 1
make[2]: *** [drivers/gpio] Error 2
make[1]: *** [drivers] Error 2
make: *** [sub-make] Error 2

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-29 12:50:45 +02:00
Linus Torvalds 1fdb24e969 Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits)
  ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET
  ARM: gic, local timers: use the request_percpu_irq() interface
  ARM: gic: consolidate PPI handling
  ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H
  ARM: mach-s5p64x0: remove mach/memory.h
  ARM: mach-s3c64xx: remove mach/memory.h
  ARM: plat-mxc: remove mach/memory.h
  ARM: mach-prima2: remove mach/memory.h
  ARM: mach-zynq: remove mach/memory.h
  ARM: mach-bcmring: remove mach/memory.h
  ARM: mach-davinci: remove mach/memory.h
  ARM: mach-pxa: remove mach/memory.h
  ARM: mach-ixp4xx: remove mach/memory.h
  ARM: mach-h720x: remove mach/memory.h
  ARM: mach-vt8500: remove mach/memory.h
  ARM: mach-s5pc100: remove mach/memory.h
  ARM: mach-tegra: remove mach/memory.h
  ARM: plat-tcc: remove mach/memory.h
  ARM: mach-mmp: remove mach/memory.h
  ARM: mach-cns3xxx: remove mach/memory.h
  ...

Fix up mostly pretty trivial conflicts in:
 - arch/arm/Kconfig
 - arch/arm/include/asm/localtimer.h
 - arch/arm/kernel/Makefile
 - arch/arm/mach-shmobile/board-ap4evb.c
 - arch/arm/mach-u300/core.c
 - arch/arm/mm/dma-mapping.c
 - arch/arm/mm/proc-v7.S
 - arch/arm/plat-omap/Kconfig
largely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP ->
CONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and
addition of NEED_MACH_MEMORY_H next to HAVE_IDE.
2011-10-28 12:02:27 -07:00
Russell King bdf4e94823 Merge branch 'misc' into for-linus
Conflicts:
	arch/arm/mach-integrator/integrator_ap.c
2011-10-25 08:19:59 +01:00
Russell King 06afb1a087 Merge branches 'arnd-randcfg-fixes', 'debug', 'io' (early part), 'l2x0', 'p2v', 'pgt' (early part) and 'smp' into for-linus 2011-10-25 08:19:29 +01:00
Russell King 34471a9168 Merge branch 'ppi-irq-core-for-rmk' of git://github.com/mzyngier/arm-platforms into devel-stable 2011-10-23 14:42:30 +01:00
Russell King a06f916b7a ARM: smp: fix clipping of number of CPUs
Rather than clipping the number of CPUs using the compile-time NR_CPUS
constant, use the runtime nr_cpu_ids value instead.  This allows the
nr_cpus command line option to work as expected.

Cc: <stable@kernel.org>
Reported-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-20 22:06:57 +01:00
Russell King cefd3e71ef Merge branch 'mach_memory_h' of git://git.linaro.org/people/nico/linux into devel-stable 2011-10-18 13:40:54 +01:00
Will Deacon 4a139b6470 ARM: versatile: convert logical CPU numbers to physical numbers
This patch uses the new cpu_logical_map() macro for converting logical
CPU numbers into physical numbers when dealing with the pen_release
variable in the SMP boot and CPU hotplug paths.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-10-17 10:01:11 +01:00
Nick Bowler b3377d1865 ARM: 7064/1: vexpress: Use wfi macro in platform_do_lowpower.
Current Versatile Express CPU hotplug code includes a hardcoded WFI
instruction, in ARM encoding.  When the kernel is compiled in Thumb-2
mode, this is invalid and causes the machine to hang hard when a CPU
is offlined.

Using the wfi macro (which uses the appropriate assembler mnemonic)
causes the correct instruction to be emitted in either case.  As a
consequence of this change, an apparently vestigial "cc" clobber is
dropped from the asm (the macro uses "memory" only).

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17 09:12:41 +01:00
Sascha Hauer 40c6d8aee4 ARM: 7022/1: allow to detect conflicting zreladdrs
Boards used to specify zreladdr in their Makefile.boot with
zreladdr-y := x, so conflicting zreladdrs were silently overwritten.
This patch changes this to zreladdr-y += x, so that we end
up with multiple words in zreladdr in such a case. We can
detect this later and complain if necessary.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17 09:12:40 +01:00
Nicolas Pitre 34561b557f ARM: mach-vexpress: remove mach/memory.h
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-10-13 12:49:29 -04:00
Nicolas Pitre 639da5ee37 ARM: add an extra temp register to the low level debugging addruart macro
Some platforms (like OMAP not to name it) are doing rather complicated
hacks just to determine the base UART address to use.  Let's give their
addruart macro some slack by providing an extra work register which will
allow for much needed cleanups.

This is basically a no-op as this commit is only adding the extra argument
to the macro but no one is using it yet.

Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-09-26 10:11:25 -04:00
Russell King 4722cd7741 Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6-wd into devel-stable
Conflicts:
	arch/arm/mach-imx/mach-cpuimx27.c
2011-09-16 21:45:16 +01:00
Nick Bowler 0ebb962e00 ARM: 7003/1: vexpress: Add clock definition for the SP805.
It seems that an entry for the SP805 watchdog in the table of clocks was
missing.  This results in the sp805_wdt driver rejecting the device with
the following errors:

  sp805-wdt mb:wdt: Clock not found
  sp805-wdt mb:wdt: Probe Failed!!!
  sp805-wdt: probe of mb:wdt failed with error -2

While not obviously stated in the hardware docs, the onboard SP810's
"REFCLK" is connected to a 32.768KHz crystal, and this drives the
watchdog.  Add a struct clk and corresponding lookup entry for it.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-24 09:45:21 +01:00
Nicolas Pitre e9ce8e5bd0 ARM: vexpress: convert boot_params to atag_offset
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-08-21 17:15:20 -04:00
Russell King 4b34f7d62e ARM: io: remove IO_SPACE_LIMIT from platforms without PCI/ISA
Nothing should be using PCI/ISA IO on these platforms, so their
IO_SPACE_LIMIT definitions are irrelevent.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-17 08:44:17 +01:00
Russell King 06f365acef Merge branches 'btc', 'dma', 'entry', 'fixes', 'linker-layout', 'misc', 'mmci', 'suspend' and 'vfp' into for-next 2011-07-22 23:08:48 +01:00
Stephen Boyd 7fa22bd546 ARM: 6993/1: platsmp: Allow secondary cpu hotplug with maxcpus=1
If an ARM system has multiple cpus in the same socket and the
kernel is booted with maxcpus=1, secondary cpus are possible but
not present due to how platform_smp_prepare_cpus() is called.
Since most typical ARM processors don't actually support physical
hotplug, initialize the present map to be equal to the possible
map in generic ARM SMP code. Also, always call
platform_smp_prepare_cpus() as long as max_cpus is non-zero (0
means no SMP) to allow platform code to do any SMP setup.

After applying this patch it's possible to boot an ARM system
with maxcpus=1 on the command line and then hotplug in secondary
cpus via sysfs. This is more in line with how x86 does things.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: David Brown <davidb@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-07 14:45:07 +01:00
Rob Herring 2fdf99934c ARM: 6946/1: vexpress: move v2m clock init to init_early
Commit 7ff550de99 breaks vexpress booting. The
v2m clock table needs to be setup in init_early before the timer
initialization occurs.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-06 10:56:09 +01:00
Russell King 4b60e5f90d Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
Russell King 23828a7a97 clockevents: ARM sp804: obtain sp804 timer rate via clks
This allows platforms to specify the rate of the SP804 clockevent via
the clk subsystem.  While ARM boards clock these at 1MHz, BCMRing also
has SP804 timers but are clocked at different rates.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23 18:04:53 +01:00
Russell King 57cc4f7de2 clockevents: ARM sp804: allow clockevent name to be specified
This allows platforms to specify the clcokevent name upon registration.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23 18:04:53 +01:00
Russell King 7ff550de99 clocksource: ARM sp804: obtain sp804 timer rate via clks
This allows platforms to specify the rate of the SP804 clocksource via
the clk subsystem.  While ARM boards clock these at 1MHz, BCMRing also
has SP804 timers but are clocked at different rates.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23 18:04:53 +01:00
Russell King fb593cf38f clocksource: ARM sp804: allow clocksource name to be specified
This allows platforms to specify the clocksource name upon
registration, which is necessary should they wish to register more
than one sp804 clocksource.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23 18:04:53 +01:00
Russell King 0f7b332f97 ARM: consolidate SMP cross call implementation
Rather than having each platform class provide a mach/smp.h header for
smp_cross_call(), arrange for them to register the function with the
core ARM SMP code instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23 16:53:17 +01:00
Marc Zyngier 667f390bee ARM: 6910/1: MTD: physmap: let set_vpp() pass a platform_device instead of a map_info
The set_vpp() method provided by physmap passes a map_info back to
the platform code, which has little relevance as far as the platform
is concerned (this parameter is completely unused).

Instead, pass the platform_device, which can be used in the pismo
driver to retrieve some important information in a nicer way, instead
of the hack that was in place.

The empty set_vpp function in board-at572d940hf_ek.c is left untouched,
as the board/SoC is scheduled for removal.

Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-20 22:27:34 +01:00
Marc Zyngier 0f71fd492d ARM: 6909/1: VExpress: Use physmap driver instead of integrator-flash
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-20 22:27:08 +01:00
Will Deacon 80b5efbd43 ARM: 6771/1: vexpress: add support for multiple core tiles
The current Versatile Express BSP defines the MACHINE_START macro
in the core tile code.

This patch moves this into the generic board code and introduces a
method for determining the current tile at runtime, allowing the
Kernel to have support for multiple tiles compiled in. Tile-specific
functions are executed via a descriptor struct containing the correct
implementations for the current tile.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-20 09:32:21 +00:00
Russell King 196f020fbb Merge branches 'fixes', 'pgt-next' and 'versatile' into devel 2011-03-20 09:32:12 +00:00
Will Deacon 3de4ade3d6 ARM: 6751/1: vexpress: select applicable errata workarounds in Kconfig
The Cortex-A9 tile on the Versatile Express suffers from a number of
engineering errata.

This patch selects workarounds in the ARCH_VEXPRESS_CA9X4 Kconfig entry
so that users don't need to worry about which ones to apply.

Reported-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-27 12:08:48 +00:00
Russell King 0462b4477e ARM: realview/vexpress: consolidate SMP bringup code
Realview and Versatile Express share the same SMP bringup code, so
consolidate the two implementations.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19 11:11:41 +00:00
Russell King cdab142a80 ARM: realview/vexpress: consolidate localtimer support
Realview and Versatile Express local timer support is identical, so
consolidate the implementations.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19 11:11:36 +00:00
Russell King 493a451bb5 ARM: vexpress: use new init_early for clock tree and sched_clock init
Initialize the clock tree and our sched_clock() early.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19 11:11:10 +00:00
Russell King 0fb44b910f ARM: vexpress: switch Versatile Express to use consolidated CLCD
This switches Versatile Express to use the conslidated CLCD panel
support, including the display capabilities.  As Versatile Express uses
a PL111, it can support the full range of pixel formats - 444, 5551,
565 in both RGB and BGR mode.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19 11:09:31 +00:00
Russell King b75c178afa ARM: P2V: avoid initializers and assembly using PHYS_OFFSET
As PHYS_OFFSET will be becoming a variable, we can't have it used in
initializers nor assembly code.  Replace those in generic code with
a run-time initialization.  Replace those in platform code using the
individual platform specific PLAT_PHYS_OFFSET.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-17 23:27:30 +00:00
Russell King f4117ac9e2 ARM: P2V: separate PHYS_OFFSET from platform definitions
This uncouple PHYS_OFFSET from the platform definitions, thereby
facilitating run-time computation of the physical memory offset.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Magnus Damm <damm@opensource.se>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-17 23:26:55 +00:00
Nick Bowler 95c34f831f ARM: 6633/1: vexpress: register platform PATA device.
The compactflash device on this platform is not usable simply because it
is never registered with the kernel.  Fix that up.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 16:19:12 +00:00
Pawel Moll baaece2245 ARM: 6635/2: Configure reference clock for Versatile Express timers
Timers on Versatile Express mainboard are used as system clock/event
sources. Driver assumes that they are clocked with 1MHz signal.
Old V2M firmware apparently configured it by default, but on newer
boards one can observe that "sleep 1" command takes over 30 seconds
to finish, as the timers are fed with 32kHz instead...

This patch performs required magic and also removes code clearing
timer's control registers, as exactly the same operations are
performed by the timer driver few jiffies later.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 16:18:33 +00:00
Russell King ec15038f2b ARM: realview,vexpress: fix section mismatch warning for pen_release
Fix two section mismatch warnings in the platform SMP bringup code for
Realview and Versatile Express:

WARNING: arch/arm/mach-realview/built-in.o(.text+0x8ac): Section mismatch in reference from the function write_pen_release() to the variable .cpuinit.data:pen_release
The function write_pen_release() references
the variable __cpuinitdata pen_release.
This is often because write_pen_release lacks a __cpuinitdata
annotation or the annotation of pen_release is wrong.

WARNING: arch/arm/mach-vexpress/built-in.o(.text+0x7b4): Section mismatch in reference from the function write_pen_release() to the variable .cpuinit.data:pen_release
The function write_pen_release() references
the variable __cpuinitdata pen_release.
This is often because write_pen_release lacks a __cpuinitdata
annotation or the annotation of pen_release is wrong.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 15:08:01 +00:00
Russell King 4073723acb Merge branch 'misc' into devel
Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c
2011-01-06 22:32:52 +00:00
Russell King 4ec3eb1363 Merge branch 'smp' into misc
Conflicts:
	arch/arm/kernel/entry-armv.S
	arch/arm/mm/ioremap.c
2011-01-06 22:32:03 +00:00
Russell King 58daf18cdc Merge branch 'clksrc' into devel
Conflicts:
	arch/arm/mach-vexpress/v2m.c
	arch/arm/plat-omap/counter_32k.c
	arch/arm/plat-versatile/Makefile
2011-01-05 18:09:03 +00:00
Russell King 31edf274f9 Merge branches 'ftrace', 'gic', 'io', 'kexec', 'mod', 'sa11x0', 'sh' and 'versatile' into devel 2011-01-05 18:08:10 +00:00
Russell King 0af85dda39 ARM: vexpress: add sched_clock() for Versatile Express
Add a sched_clock() implementation to Versatile Express using the new
sched_clock() infrastructure for extending 32bit counters to full
64-bit nanoseconds.

Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-05 11:16:00 +00:00
Russell King e9882777d9 ARM: CPU hotplug: add Versatile Express hotplug CPU support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:15 +00:00
Russell King 3705ff6da5 ARM: Fix subtle race in CPU pen_release hotplug code
There is a subtle race in the CPU hotplug code, where a CPU which has
been offlined can online itself before being requested, which results
in things going astray on the next online/offline cycle.

What happens in the normal online/offline/online cycle is:

	CPU0			CPU3
	requests boot of CPU3
	pen_release = 3
	flush cache line
				checks pen_release, reads 3
				starts boot
				pen_release = -1
	... requests CPU3 offline ...
				... dies ...
				checks pen_release, reads -1
	requests boot of CPU3
	pen_release = 3
	flush cache line
				checks pen_release, reads 3
				starts boot
				pen_release = -1

However, as the write of -1 of pen_release is not fully flushed back to
memory, and the checking of pen_release is done with caches disabled,
this allows CPU3 the opportunity to read the old value of pen_release:

	CPU0			CPU3
	requests boot of CPU3
	pen_release = 3
	flush cache line
				checks pen_release, reads 3
				starts boot
				pen_release = -1
	... requests CPU3 offline ...
				... dies ...
				checks pen_release, reads 3
				starts boot
				pen_release = -1
	requests boot of CPU3
	pen_release = 3
	flush cache line

Fix this by grouping the write of pen_release along with its cache line
flushing code to ensure that any update to pen_release is always pushed
out to physical memory.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:13 +00:00
Russell King 86e62b9336 ARM: SMP: remove smp_mpidr.h
With "ARM: CPU hotplug: remove bug checks in platform_cpu_die()", we
now do not use hard_smp_processor_id(), we no longer need to read the
hardware processor ID.  Remove the include providing this function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:11 +00:00
Russell King 2c0136dba4 ARM: SMP: consolidate trace_hardirqs_off() into common SMP code
All platforms call trace_hardirqs_off() in their secondary startup code,
so move this into the core SMP code - it doesn't need to be in the
per-platform code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:09 +00:00
Russell King 05c74a6cbc ARM: SMP: consolidate the common parts of smp_prepare_cpus()
There is a certain amount of smp_prepare_cpus() which doesn't belong
in the platform support code - that is, code which is invariant to the
SMP implementation.  Move this code into arch/arm/kernel/smp.c, and
add a platform_ prefix to the original function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:08 +00:00
Russell King 8975b6c0fd ARM: SMP: Clean up ncores sanity checks
scu_get_core_count() never returns zero cores, so we don't need to
check and correct if ncores is zero.

Tegra was missing the check against NR_CPUS, leading to a potential
bitfield overflow if this becomes the case.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:08:27 +00:00
Russell King 7627dc802a ARM: GIC: private a standard get_irqnr_preamble assembler macro
Provide a standard get_irqnr_preamble assembler macro for platforms
to use, which retrieves the base address of the GIC CPU interface
from gic_cpu_base_addr.  Allow platforms to override this by defining
HAVE_GET_IRQNR_PREAMBLE.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:47 +00:00
Russell King ff2e27ae0b ARM: GIC: consolidate gic_cpu_base_addr to common GIC code
Every architecture using the GIC has a gic_cpu_base_addr pointer for
GIC 0 for their entry assembly code to use to decode the cause of the
current interrupt.  Move this into the common GIC code.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:42 +00:00
Russell King 384895330e ARM: GIC: Remove MMIO address from gic_cpu_init, rename to gic_secondary_init
We don't need to re-pass the base address for the CPU interfaces to the
GIC for secondary CPUs, as it will never be different from the boot CPU
- and even if it was, we'd overwrite the boot CPU's base address.

Get rid of this argument, and rename to gic_secondary_init().

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:40 +00:00
Russell King b580b899dd ARM: GIC: provide a single initialization function for boot CPU
Provide gic_init() which initializes the GIC distributor and current
CPU's GIC interface for the boot (or single) CPU.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:30 +00:00
Magnus Damm c91a2bd70a ARM: 6480/1: Use shared GIC entry macros on Vexpress
Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the Versatile Express subarchitecture.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-07 09:20:26 +00:00
Russell King ad3b6993b9 ARM: SMP: pass an ipi number to smp_cross_call()
This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI.  Recover the SGI number via do_IPI.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-03 08:26:30 +00:00
Dave Martin 618d9c8f9e ARM: 6508/1: vexpress: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL
Directives such as .long and .word do not magically cause the
assembler location counter to become aligned in gas.  As a
result, using these directives in code sections can result in
misaligned data words when building a Thumb-2 kernel
(CONFIG_THUMB2_KERNEL).

This is a Bad Thing, since the ABI permits the compiler to
assume that fundamental types of word size or above are word-
aligned when accessing them from C.  If the data is not really
word-aligned, this can cause impaired performance and stray
alignment faults in some circumstances.

In general, the following rules should be applied when using
data word declaration directives inside code sections:

    * .quad and .double:
         .align 3

    * .long, .word, .single, .float:
         .align (or .align 2)

    * .short:
        No explicit alignment required, since Thumb-2
        instructions are always 2 or 4 bytes in size.
        immediately after an instruction.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-30 13:44:27 +00:00
Jean-Christop PLAGNIOL-VILLARD 6d803ba736 ARM: 6483/1: arm & sh: factorised duplicated clkdev.c
factorise some generic infrastructure to assist looking up struct clks
for the ARM & SH architecture.

as the code is identical at 99%

put the arch specific code for allocation as example in asm/clkdev.h

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-26 10:51:04 +00:00
Will Deacon e56c010f0d ARM: 6472/1: vexpress ct-ca9x4: only set twd_base if local timers are being used
In commit bde28b84, I made the assumption that CONFIG_SMP is always set
for the quad-core ct-ca9x4 platform. As it turns out, people who aren't
using the SMP goodness are confronted with a build failure.

This patch fixes this issue by ensure that twd_base is only set if
local timers are being used (and therefore SMP support is configured).

Reported-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-10 15:11:19 +00:00
Rob Herring 8a9618f5df ARM: 6432/1: move timer-sp.c from versatile to common
From: Rob Herring <rob.herring@smooth-stone.com>

The timer-sp h/w used on versatile platforms can also be used for other
platforms, so move it to a common location.

Signed-off-by: Rob Herring <rob.herring@smooth-stone.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-04 15:49:32 +00:00
Nicolas Pitre 6451d7783b arm: remove machine_desc.io_pg_offst and .phys_io
Since we're now using addruart to establish the debug mapping, we can
remove the io_pg_offst and phys_io members of struct machine_desc.

The various declarations were removed using the following script:

  grep -rl MACHINE_START arch/arm | xargs \
  sed -i '/MACHINE_START/,/MACHINE_END/ { /\.\(phys_io\|io_pg_offst\)/d }'

[ Initial patch was from Jeremy Kerr, example script from Russell King ]

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Eric Miao <eric.miao at canonical.com>
2010-10-20 00:27:46 -04:00
Jeremy Kerr 0ea1293009 arm: return both physical and virtual addresses from addruart
Rather than checking the MMU status in every instance of addruart, do it
once in kernel/debug.S, and change the existing addruart macros to
return both physical and virtual addresses. The main debug code can then
select the appropriate address to use.

This will also allow us to retreive the address of a uart for the MMU
state that we're not current in.

Updated with fixes for OMAP from Jason Wang <jason77.wang@gmail.com>
and Tony Lindgren <tony@atomide.com>, and fix for versatile express from
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-10-20 00:27:33 -04:00
Russell King 809b4e00ba Merge branch 'devel-stable' into devel 2010-10-19 22:06:36 +01:00
Russell King cdaf9a2f28 ARM: fix section mismatch warnings in Versatile Express
WARNING: vmlinux.o(.text+0xbf30): Section mismatch in reference from the function v2m_timer_init() to the function .init.text:sp804_clocksource_init()
The function v2m_timer_init() references
the function __init sp804_clocksource_init().
This is often because v2m_timer_init lacks a __init
annotation or the annotation of sp804_clocksource_init is wrong.

WARNING: vmlinux.o(.text+0xbf3c): Section mismatch in reference from the function v2m_timer_init() to the function .init.text:sp804_clockevents_init()
The function v2m_timer_init() references
the function __init sp804_clockevents_init().
This is often because v2m_timer_init lacks a __init
annotation or the annotation of sp804_clockevents_init is wrong.

WARNING: vmlinux.o(.text+0xc524): Section mismatch in reference from the function ct_ca9x4_init() to the function .init.text:l2x0_init()
The function ct_ca9x4_init() references
the function __init l2x0_init().
This is often because ct_ca9x4_init lacks a __init
annotation or the annotation of l2x0_init is wrong.

WARNING: vmlinux.o(.text+0xc530): Section mismatch in reference from the function ct_ca9x4_init() to the function .init.text:clkdev_add_table()
The function ct_ca9x4_init() references
the function __init clkdev_add_table().
This is often because ct_ca9x4_init lacks a __init
annotation or the annotation of clkdev_add_table is wrong.

WARNING: vmlinux.o(.text+0xc578): Section mismatch in reference from the function ct_ca9x4_init() to the (unknown reference) .init.data:(unknown)
The function ct_ca9x4_init() references
the (unknown reference) __initdata (unknown).
This is often because ct_ca9x4_init lacks a __initdata
annotation or the annotation of (unknown) is wrong.

Fix these by making ct_ca9x4_init() and v2m_timer_init() both __init.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-05 11:30:40 +01:00
Russell King 067173526c ARM: Provide common header for hard_smp_processor_id()
Provide a common header to read the SMP CPU number from the MPIDR.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-04 20:20:45 +01:00
Will Deacon 2de59fea8b ARM: 6411/1: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile
The PL310 on the ct-ca9x4 tile for the Versatile Express does not need
to add additional latency when accessing its cache RAMs. Unfortunately,
the boot monitor sets this up for an 8-cycle delay on reads and writes,
resulting in greatly reduced memory performance when the L2 cache is
enabled.

This patch sets the L2 RAM latencies to the correct value of 1 cycle
on the ct-ca9x4 tile before enabling the L2 cache.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-27 14:57:36 +01:00
Catalin Marinas 1a8e41cd67 ARM: 6395/1: VExpress: Set bit 22 in the PL310 (cache controller) AuxCtlr register
Clearing bit 22 in the PL310 Auxiliary Control register (shared
attribute override enable) has the side effect of transforming Normal
Shared Non-cacheable reads into Cacheable no-allocate reads.

Coherent DMA buffers in Linux always have a Cacheable alias via the
kernel linear mapping and the processor can speculatively load cache
lines into the PL310 controller. With bit 22 cleared, Non-cacheable
reads would unexpectedly hit such cache lines leading to buffer
corruption.

Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: <stable@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-17 10:16:52 +01:00
Linus Torvalds be82ae0238 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (291 commits)
  ARM: AMBA: Add pclk support to AMBA bus infrastructure
  ARM: 6278/2: fix regression in RealView after the introduction of pclk
  ARM: 6277/1: mach-shmobile: Allow users to select HZ, default to 128
  ARM: 6276/1: mach-shmobile: remove duplicate NR_IRQS_LEGACY
  ARM: 6246/1: mmci: support larger MMCIDATALENGTH register
  ARM: 6245/1: mmci: enable hardware flow control on Ux500 variants
  ARM: 6244/1: mmci: add variant data and default MCICLOCK support
  ARM: 6243/1: mmci: pass power_mode to the translate_vdd callback
  ARM: 6274/1: add global control registers definition header file for nuc900
  mx2_camera: fix type of dma buffer virtual address pointer
  mx2_camera: Add soc_camera support for i.MX25/i.MX27
  arm/imx/gpio: add spinlock protection
  ARM: Add support for the LPC32XX arch
  ARM: LPC32XX: Arch config menu supoport and makefiles
  ARM: LPC32XX: Phytec 3250 platform support
  ARM: LPC32XX: Misc support functions
  ARM: LPC32XX: Serial support code
  ARM: LPC32XX: System suspend support
  ARM: LPC32XX: GPIO, timer, and IRQ drivers
  ARM: LPC32XX: Clock driver
  ...
2010-08-03 14:31:24 -07:00
Russell King b31fc7af78 Merge branches 'at91', 'ep93xx', 'kexec', 'iop', 'lmb', 'nomadik', 'nuc', 'pl', 'spear' and 'versatile' into devel 2010-07-31 14:19:35 +01:00
Russell King 74bc80931c ARM: Fix Versatile/Realview/VExpress MMC card detection sense
The MMC card detection sense has become really confused with negations
at various levels, leading to some platforms not detecting inserted
cards.  Fix this by converting everything to positive logic throughout,
thereby getting rid of these negations.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-30 23:16:32 +01:00
Russell King 3126c7bc41 ARM: AMBA: Add pclk definition for platforms using primecells
Add a dummy clk definition for the APB pclk signal on all platforms
using the AMBA bus infrastructure.  This ensures that these platforms
continue to work when the core amba bus code controls the APB pclk.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-22 09:55:38 +01:00
Will Deacon bde28b846e ARM: 6218/1: Versatile Express: add support for local timers on CA9X4 daughterboard
This patch adds support for the Cortex-A9 local timers available when
using the CA9X4 daughterboard with the Versatile Express.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-09 14:21:51 +01:00
Catalin Marinas cf0bb91b3c ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section
When not aligned, random bits could be written in the initial page table
by the __create_page_tables() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-01 10:13:41 +01:00
Tejun Heo 68aaae9e95 arm: update gfp/slab.h includes
Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-28 10:19:18 +10:00
Will Deacon f417cbad73 ARM: 6057/1: Realview: register PMU IRQs during board initialisation
This patch updates the initialisation routines for the Realview boards
and the Versatile Express board [ca9x4 tile] so that they register their
PMU IRQs with the PMU framework in the Kernel.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-02 09:35:40 +01:00
Russell King 59ac59f6f1 ARM: Add Versatile Express SMP support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-02 09:35:39 +01:00
Russell King fef88f1076 ARM: Add Versatile Express CA9x4 processor support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-02 09:35:39 +01:00
Russell King ceade897f3 ARM: Add Versatile Express support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-02 09:35:38 +01:00