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24095 commits

Author SHA1 Message Date
Olof Johansson
c35a0bfacb Third round of Renesas ARM-based SoC changes for v3.9
A fix for r8a7779 clocks.
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Merge tag 'renesas-soc3-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

From Simon Horman:
Third round of Renesas ARM-based SoC changes for v3.9

A fix for r8a7779 clocks.

* tag 'renesas-soc3-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7779: Correct TMU clock support
2013-02-05 11:04:11 -08:00
Olof Johansson
71e45bd2f9 mvebu drivers for v3.9
- use rtc-mv in mvebu armv7 SoCs
  - add pci-e hotplug for kirkwood
 
 Depends on:
  - tags/mvebu_fixes_for_v3.8-rc6
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Merge tag 'drivers_for_v3.9' of git://git.infradead.org/users/jcooper/linux into next/soc

From Jason Cooper:
mvebu drivers for v3.9
 - use rtc-mv in mvebu armv7 SoCs
 - add pci-e hotplug for kirkwood

Depends on:
 - tags/mvebu_fixes_for_v3.8-rc6

* tag 'drivers_for_v3.9' of git://git.infradead.org/users/jcooper/linux:
  cpuidle: kirkwood: Move out of mach directory
  rtc: Add support of rtc-mv for MVEBU SoCs
  ARM: Kirkwood: Support basic hotplug for PCI-E
  arm: mvebu: i2c come back in defconfig
  arm: plat-orion: fix printing of "MPP config unavailable on this hardware"
  Dove: activate GPIO interrupts in DT
2013-02-04 22:56:53 -08:00
Olof Johansson
469da62096 Linux 3.8-rc6
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Merge tag 'v3.8-rc6' into next/soc

Linux 3.8-rc6
2013-02-04 22:56:41 -08:00
Olof Johansson
4227961650 imx6q cpuidle support for 3.9
- It's based on imx-cleanup-3.9 to avoid conflicts.
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Merge tag 'imx6q-cpudile-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc

From Shawn Guo:
imx6q cpuidle support for 3.9

 - It's based on imx-cleanup-3.9 to avoid conflicts.

* tag 'imx6q-cpudile-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: imx6q: support WAIT mode using cpuidle
  ARM: imx: move imx6q_cpuidle_driver into a separate file
  ARM: imx: mask gpc interrupts initially
  ARM: imx: return zero in case next event gets a large increment
  ARM: imx: Remove mx508 support
  ARM: imx: Remove mach-mx51_3ds board
  ARM: imx: use debug_ll_io_init() for imx6q
  ARM: imx: remove unused imx6q_clock_map_io()
  ARM: mach-imx: Kconfig: Do not select Babbage for MACH_IMX51_DT

Signed-off-by: Olof Johansson <olof@lixom.net>

Still, two delete/change conflicts caused by imx/cleanup:

	arch/arm/mach-imx/mach-mx50_rdp.c
	arch/arm/mach-imx/mach-mx51_3ds.c
2013-02-04 22:24:20 -08:00
Barry Song
ef4acb75a0 ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
Fix the issue:
tree:   git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git next/soc
head:   6ed05a2aab
commit: af70fdc947 [4/8] Merge branch 'marco-timer-cleanup-rebase' of
git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into next/soc
config: make ARCH=arm prima2_defconfig

All error/warnings:

>> arch/arm/mach-prima2/platsmp.c:20:30: fatal error: asm/hardware/gic.h: No such file or directory
   compilation terminated.
--
>> arch/arm/mach-prima2/common.c:15:30: fatal error: asm/hardware/gic.h: No such file or directory
   compilation terminated.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: Xie ChanglongX <changlongx.xie@intel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-04 21:53:14 -08:00
Simon Horman
58079fa7d5 ARM: shmobile: r8a7779: Correct TMU clock support
During code review it was noticed that the clock value for
TMU01 was incorrect and the value for TMU02 was missing.

For reference: As of 3.8-rc6 there are no in-tree consumes of these clocks.

Reported-by: Denis Oliver Kropp <dok@directfb.org>
Reviewed-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-02-05 12:31:18 +09:00
Olof Johansson
07e0da3dca Second round of Renesas ARM-based SoC changes for v3.9
* Changes to allow unplugging of CPU0 by Ulrich Hecht.
 
 * Changes to add reg and device_type properties to cpus
   device trees entries by Simon Horman.
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Merge tag 'renesas-soc2-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

From Simon Horman:
Second round of Renesas ARM-based SoC changes for v3.9

* Changes to allow unplugging of CPU0 by Ulrich Hecht.

* Changes to add reg and device_type properties to cpus
  device trees entries by Simon Horman.

* tag 'renesas-soc2-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: mach-shmobile: sh73a0: allow unplugging of CPU0
  ARM: mach-shmobile: add shmobile_cpu_disable_any()
  ARM: mach-shmobile: emev2:  Add reg and device_type properties to cpus
  ARM: mach-shmobile: sh73a0:  Add reg and device_type properties to cpus

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-31 19:39:27 -08:00
Andrew Lunn
9cfc94eb0f cpuidle: kirkwood: Move out of mach directory
Move the Kirkwood cpuidle driver out of arch/arm/mach-kirkwood and
into drivers/cpuidle. Convert the driver into a platform driver.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-31 17:01:37 +00:00
Jason Gunthorpe
b73690c8f8 ARM: Kirkwood: Support basic hotplug for PCI-E
Unconditionally register the PCI-E bus, even if the link is currently
down. When the link is brought up the bus can be scanned through
/sys/bus/pci/rescan or otherwise. Since the HW has no interrupt for
link up, userspace will have to take care of the timing.

An earlier version of this was contingent on CONFIG_HOTPLUG, but
that is being removed from the kernel.

This also fixes printing the link up/down message to be displayed
on one line (structured logging broke this?)

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-30 20:13:38 +00:00
Jason Cooper
183cadc962 fixes for v3.8-rc6
- add missing gpio interrupt lines to dove dt
  - fix bad logic for printing MPP error message on orion boards
  - build proper serial port driver after changing mvebu DT compatible property
    - This is a change to mvebu_defconfig that I wouldn't usually push out as a
      fix.  However, the commit
 
      b24212f arm: mvebu: Use dw-apb-uart instead of ns16650 as UART driver
 
      changed the serial driver for the board in the dts file.  without the patch
      I've included in this pull, users won't see any log messages.
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Merge tag 'tags/mvebu_fixes_for_v3.8-rc6' into mvebu/drivers

fixes for v3.8-rc6

 - add missing gpio interrupt lines to dove dt
 - fix bad logic for printing MPP error message on orion boards
 - build proper serial port driver after changing mvebu DT compatible property
   - This is a change to mvebu_defconfig that I wouldn't usually push out as a
     fix.  However, the commit

     b24212f arm: mvebu: Use dw-apb-uart instead of ns16650 as UART driver

     changed the serial driver for the board in the dts file.  without the patch
     I've included in this pull, users won't see any log messages.
2013-01-30 20:12:25 +00:00
Shawn Guo
e5f9dec8ff ARM: imx6q: support WAIT mode using cpuidle
Add WAIT mode (ARM core clock gating) support to imx6q cpuidle driver.
As WAIT mode is broken on imx6q TO 1.0 and 1.1, it only enables the
support for revision 1.2 with chicken bit set.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-30 21:09:31 +08:00
Shawn Guo
12bb344074 ARM: imx: move imx6q_cpuidle_driver into a separate file
Move imx6q_cpuidle_driver into a separate file as more codes will
be added when WAIT mode gets implemented as cpuidle.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-30 21:08:42 +08:00
Shawn Guo
485863b8fa ARM: imx: mask gpc interrupts initially
Mask gpc interrupts initially to avoid suspicious interrupts.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-30 21:08:34 +08:00
Shawn Guo
eea8e326ff ARM: imx: return zero in case next event gets a large increment
The return of v2_set_next_event() will lead to an infinite loop in
tick_handle_oneshot_broadcast() - "goto again;" with imx6q WAIT mode
(to be enabled).  This happens because when global event did not expire
any CPU local events, the broadcast device will be rearmed to a CPU
local next_event, which could be far away from now and result in a
max_delta_tick programming in set_next_event().

Fix the problem by detecting those next events with increments larger
than 0x7fffffff, and simply return zero in that case.

It leaves mx1_2_set_next_event() unchanged since only v2_set_next_event()
will be running with imx6q WAIT mode support.

Thanks Russell King for helping understand the problem.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-30 21:08:08 +08:00
Ulrich Hecht
dc784e73b4 ARM: mach-shmobile: sh73a0: allow unplugging of CPU0
sh73a0 deals fine with disabling any core, so we should permit it.

Signed-off-by: Ulrich Hecht <ulrich.hecht@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-30 13:07:59 +09:00
Ulrich Hecht
0f234d91b8 ARM: mach-shmobile: add shmobile_cpu_disable_any()
Method to disable any core to be used on platforms where CPU0 does not
need special treatment.

Signed-off-by: Ulrich Hecht <ulrich.hecht@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-30 13:07:59 +09:00
Olof Johansson
6ed05a2aab ARM: bcm2835: SoC driver updates
The bcm2835 clock driver is enhanced to allow fixed clocks to be probed
 from device tree.
 
 A system power-off implementation is added.
 
 This branch is based on v3.8-rc3.
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Merge tag 'bcm2835-for-3.9-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi into next/soc

From Stephen Warren:
ARM: bcm2835: SoC driver updates

The bcm2835 clock driver is enhanced to allow fixed clocks to be probed
from device tree.

A system power-off implementation is added.

This branch is based on v3.8-rc3.

* tag 'bcm2835-for-3.9-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi:
  ARM: bcm2835: add a pm_power_off implementation
  clk: bcm2835: probe for fixed-clock in device tree

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-29 09:53:44 -08:00
Olof Johansson
3d7b2c6087 DaVinci SoC changes for v3.9
This pull request:
 
 1) Fixes a bug with the way SPI devices were registered on DA850
 2) Adds support for DSP clock and resetting the DSP on DA850
 3) Fixes checkpatch issue with some existing files.
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Merge tag 'davinci-for-v3.9/soc' of git://gitorious.org/linux-davinci/linux-davinci into next/soc

From Sekhar Nori:
DaVinci SoC changes for v3.9

This pull request:

1) Fixes a bug with the way SPI devices were registered on DA850
2) Adds support for DSP clock and resetting the DSP on DA850
3) Fixes checkpatch issue with some existing files.

* tag 'davinci-for-v3.9/soc' of git://gitorious.org/linux-davinci/linux-davinci:
  ARM: davinci: da850: add dsp clock definition
  ARM: davinci: psc: introduce reset API
  ARM: davinci: psc.c: change pr_warning() to pr_warn()
  ARM: davinci: devices-da8xx.c: change pr_warning() to pr_warn()
  ARM: davinci: da8xx_register_spi() should not register SPI board info

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-29 09:26:44 -08:00
Olof Johansson
0475e57fc3 Merge branch 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
From Simon Horman, a series of SoC updates for shmobile.

* 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7779: scif .irqs used SCIx_IRQ_MUXED()
  ARM: mach-shmobile: sh73a0: Initialise MMCIF using DT
  ARM: mach-shmobile: sh73a0: Minimal setup using DT
  ARM: mach-shmobile: sh73a0: Allow initialisation of GIC by DT
  ARM: SH-Mobile: sh73a0: Add CPU Hotplug
  ARM: SH-Mobile: sh73a0: Secondary CPUs handle own SCU flags
  ARM: shmobile: r8a7740: Add CPU sleep suspend
  ARM: shmobile: sh73a0: Add CPU sleep suspend
  ARM: shmobile: add function declarations for sh7372 DT helper functions
  ARM: sh7372: fix cache clean / invalidate order
  ARM: sh7372: add clock lookup entries for DT-based devices
  ARM: mach-shmobile: sh73a0 external IRQ wake update
  ARM: shmobile: sh73a0: fixup div4_clks bitmap
  ARM: shmobile: r8a7740: add TMU timer support
  ARM: shmobile: Remove duplicate inclusion of dma-mapping.h in setup-r8a7740.c

Signed-off-by: Olof Johansson <olof@lixom.net>

Fix trivial conflict in board_bcm due to Simon resolving the same conflict
with one less line of whitespace. Keeping end result common with what
we already have in arm-soc.

Conflicts:
	arch/arm/mach-bcm/board_bcm.c
2013-01-29 09:09:39 -08:00
Fabio Estevam
7356420cd3 ARM: imx: Remove mx508 support
Only mx508 based board is mach-mx50_rdp and it has been marked as BROKEN
for several releases.

mx508 currently lacks clock support.

In case someone needs to add mx508 support back, then the recommended approach
is to use device tree.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29 14:05:43 +08:00
Fabio Estevam
d0ab36c94d ARM: imx: Remove mach-mx51_3ds board
mach-mx51_3ds only supports old silicon version of MX51 and was replaced
with mx51 babbage, which is the official MX51 development board.

No need to maintain it anymore.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29 14:05:42 +08:00
Shawn Guo
3e549a6946 ARM: imx: use debug_ll_io_init() for imx6q
Use debug_ll_io_init() to map low level debug port for imx6q, so that
arch/arm/mach-imx/lluart.c can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29 14:05:41 +08:00
Shawn Guo
cd4842f558 ARM: imx: remove unused imx6q_clock_map_io()
imx6q_clock_map_io() becomes an empty function since imx6q clock driver
is moved to common clock framework.  It's used nowhere now.  Remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29 14:05:39 +08:00
Simon Horman
fe681d2941 ARM: mach-shmobile: emev2: Add reg and device_type properties to cpus
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-29 11:44:59 +09:00
Simon Horman
c5795aec84 ARM: mach-shmobile: sh73a0: Add reg and device_type properties to cpus
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-29 11:44:54 +09:00
Olof Johansson
2806683c31 ARM i.MX SoC updates for next
Mostly clock related updates, most notably the conversion of
 i.MX31 to a DT based lookup.
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Merge tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6 into next/soc

From Sascha Hauer:
ARM i.MX SoC updates for next

Mostly clock related updates, most notably the conversion of
i.MX31 to a DT based lookup.

* tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM: clk-imx35: Fix build warnings with W=1
  ARM: imx27: add a clock gate to activate SPLL clock
  ARM: mx31: Replace clk_register_clkdev with clock DT lookup
  ARM: clk-imx31: Add dummy clock
  ARM: Let CONFIG_MACH_IMX31_DT be built by default

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-27 23:42:02 -08:00
Olof Johansson
af70fdc947 Merge branch 'marco-timer-cleanup-rebase' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into next/soc
From Barry Song, this adds support for a new SoC from CSR; marco. It's
SMP, uses GIC instead of VIC and in general needs a bit of rework of
the platform code for setup, which this branch contains.

* 'marco-timer-cleanup-rebase' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel:
  ARM: PRIMA2: provide two DEBUG_LL ports for prima2 and marco
  ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures
  ARM: PRIMA2: irq: make prima2 irq can work even we enable GIC for Marco
  ARM: PRIMA2: rtciobg: it is also compatible with marco
  ARM: PRIMA2: rstc: enable the support for Marco
  ARM: PRIMA2: mv timer to timer-prima2 as we will add timer-marco
  ARM: PRIMA2: initialize l2x0 according to mach from DT
  ARM: PRIMA2: enable AUTO_ZRELADDR for SIRF in Kconfig
  ARM: PRIMA2: add CSR SiRFmarco device tree .dts

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-27 23:03:42 -08:00
Olof Johansson
66eae035dc Merge branch 'depends/cleanup' into next/soc
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-27 23:03:34 -08:00
Fabio Estevam
3ea8098572 ARM: clk-imx35: Fix build warnings with W=1
Fix the following warnings when building with W=1 option:

arch/arm/mach-imx/clk-imx35.c: In function 'mx35_clocks_init':
arch/arm/mach-imx/clk-imx35.c:70:12: warning: old-style function definition [-Wold-style-definition]
arch/arm/mach-imx/clk-imx35.c:201:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-25 11:12:38 +01:00
Gwenhael Goavec-Merou
b7eed20761 ARM: imx27: add a clock gate to activate SPLL clock
A clock gate is mandatory to activate SPLL clock needed, at least, for usb.

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-25 11:12:37 +01:00
Fabio Estevam
ef0e4a606f ARM: mx31: Replace clk_register_clkdev with clock DT lookup
Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-25 11:12:37 +01:00
Fabio Estevam
8a1a954038 ARM: clk-imx31: Add dummy clock
Add dummy clock as it is required by some i.mx drivers.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-25 11:12:36 +01:00
Fabio Estevam
1a81dbde4d ARM: Let CONFIG_MACH_IMX31_DT be built by default
Let CONFIG_MACH_IMX31_DT be built by default.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-25 11:12:36 +01:00
Kuninori Morimoto
ff8de98d50 ARM: shmobile: r8a7779: scif .irqs used SCIx_IRQ_MUXED()
This patch tidyup scif .irqs settings by using
SCIx_IRQ_MUXED() macro.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:50 +09:00
Simon Horman
93301f5dbd ARM: mach-shmobile: sh73a0: Initialise MMCIF using DT
This device also requires a voltage regulator which
should be defined in a board-specific maner. An example
dts snipped follows.

/ {
	fixedregulator1v8: fixedregulator@0 {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};
};

&mmcif {
	vmmc-supply = <&fixedregulator1v8>;
	vqmmc-supply = <&fixedregulator1v8>;
};

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:49 +09:00
Simon Horman
486095331a ARM: mach-shmobile: sh73a0: Minimal setup using DT
Allow a minimal setup of the sh73a0 SoC using a flattened device tree.
In particular, Configure the i2c controllers using a flattened device tree.

SCI serial controller and CMT clock source, whose drivers do not yet
support configuration using a flattened device tree, are still configured
using C code in order to allow booting of a board with this SoC.

*** Please note that the clock initialisation scheme used in
    this patch does not currently work with SMP as there
    is a yet to be resolved lock-up in workqueue initialisation.

    CONFIG_SMP must be disabled when using this code. ***

Includes update from Thierry Reding to no longer use gic_handle_irq()

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

fix
2013-01-25 12:43:49 +09:00
Simon Horman
a3f22db510 ARM: mach-shmobile: sh73a0: Allow initialisation of GIC by DT
This allows the GIC interrupt controller of the sh73a0 SoC to be
initialised using a flattened device tree blob.

It does not allow the INTC interrupt controller which is also present on
the sh73a0 SoC to be enabled via device tree.  Nor does it handle sharing
of interrupts between the GIC and INTC interrupt controllers.

This limits the usefulness of this code to applications which only wish to
access devices which use interrupts that can be handled by the GIC
interrupt controller. Other applications should, for now, continue using
non-device tree initialisation of the sh72a0 interrupt controllers.

Includes update to use irqchip_init() by Thierry Reding

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:48 +09:00
Bastian Hecht
20aa11358d ARM: SH-Mobile: sh73a0: Add CPU Hotplug
Add the capability to add and remove CPUs on the fly.
The Cortex-A9 offers the possibility to take single cores out of the
MP Core. We add this capabilty taking care that caches are kept
coherent. For verifying the shutdown we rely on the internal SH73A0
Power Status Register PSTR.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:48 +09:00
Bastian Hecht
33419a69a5 ARM: SH-Mobile: sh73a0: Secondary CPUs handle own SCU flags
When booting secondary CPUs we have used the main CPU to set up the
Snoop Control Unit flags of these CPUs. It is a cleaner approach
if every CPU takes care of its own flags. We avoid the need for
locking and the program logic is more concise. With this patch the file
headsmp-sh73a0.S is added that contains a startup vector for secondary CPUs
that sets up its own SCU flags.
Further in sh73a0_smp_prepare_cpus() we can rely on the generic ARM helper
scu_power_mode(). This is possible as we don't cross borders anymore (every
CPU handles its own flags) and need no locking. So we can throw out the
needless function modify_scu_cpu_psr().

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:47 +09:00
Bastian Hecht
895d3b53fd ARM: shmobile: r8a7740: Add CPU sleep suspend
Add the lighest possible sleep mode on Cortex-A9 cores: CPU sleep.
It is entered by a simple dsb and wfi instruction via cpu_do_idle(). As
just clocks are stopped there is no need to save or restore any state of
the system.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
[ horms@verge.net.au: Added missing includes ]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:46 +09:00
Bastian Hecht
13baf88bd6 ARM: shmobile: sh73a0: Add CPU sleep suspend
Add the lighest possible sleep mode on Cortex-A9 cores: CPU sleep. It is
entered by a simple dsb and wfi instruction via cpu_do_idle(). As just
clocks are stopped there is no need to save or restore any state of the
system.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:46 +09:00
Guennadi Liakhovetski
8a21cdaee8 ARM: shmobile: add function declarations for sh7372 DT helper functions
sh7372_add_early_devices_dt() and sh7372_add_standard_devices_dt() are
defined as global functions in arch/arm/mach-shmobile/setup-sh7372.c,
but their declarations are missing. Add them to common.h, where similar
functions for this and other SoC types are already declared.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms@verge.net.au>
2013-01-25 12:43:45 +09:00
Guennadi Liakhovetski
9916152438 ARM: sh7372: fix cache clean / invalidate order
According to the Cortex A8 TRM the L2 cache should be first cleaned and
then disabled. Fix the swapped order on sh7372.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:45 +09:00
Guennadi Liakhovetski
529a7b3235 ARM: sh7372: add clock lookup entries for DT-based devices
When booting with DT, devices are named differently. To get their clocks
additional entries have to be added to the lookup table.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms@verge.net.au>
2013-01-25 12:43:44 +09:00
Magnus Damm
6333ae1432 ARM: mach-shmobile: sh73a0 external IRQ wake update
Use sh73a0_set_wake() for external IRQ signals on sh73a0.

The sh73a0 IRQ hardware for external IRQ pins consists of
the INTCA interrupt controller and the GIC together doing
their best to limp along. These external IRQ pins are
treated as a special case where interrupts need to be
managed in both interrupt controllers in parallel.

The ->irq_set_wake() callback for the external IRQ pins
can be dealt with in the same way as INTCA-only without
involving the GIC. So this patch updates the external
IRQ pin code for sh73a0 to no longer involve the GIC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:44 +09:00
Kuninori Morimoto
bf519bfb66 ARM: shmobile: sh73a0: fixup div4_clks bitmap
div4_clks's bitmap of sh73a0 was wrong.
This patch is based on v2.0 datasheet.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:43 +09:00
Kuninori Morimoto
e67d7afc56 ARM: shmobile: r8a7740: add TMU timer support
This patch enabled TMU0 timer on r8a7740.
But TMU1 timer is not supported yet

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:43 +09:00
Sachin Kamat
f977ec94f7 ARM: shmobile: Remove duplicate inclusion of dma-mapping.h in setup-r8a7740.c
linux/dma-mapping.h was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25 12:43:42 +09:00
01acd3efd7 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "A number of fixes:

  Patrik found a problem with preempt counting in the VFP assembly
  functions which can cause the preempt count to be upset.

  Nicolas fixed a problem with the parsing of the DT when it straddles a
  1MB boundary.

  Subhash Jadavani reported a problem with sparsemem and our highmem
  support for cache maintanence for DMA areas, and TI found a bug in
  their strongly ordered memory mapping type.

  Also, three fixes by way of Will Deacon's tree from Dave Martin for
  instruction compatibility and Marc Zyngier to fix hypervisor boot mode
  issues."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7629/1: mm: Fix missing XN flag for for MT_MEMORY_SO
  ARM: DMA: Fix struct page iterator in dma_cache_maint() to work with sparsemem
  ARM: 7628/1: head.S: map one extra section for the ATAG/DTB area
  ARM: 7627/1: Predicate preempt logic on PREEMP_COUNT not PREEMPT alone
  ARM: virt: simplify __hyp_stub_install epilog
  ARM: virt: boot secondary CPUs through the right entry point
  ARM: virt: Avoid bx instruction for compatibility with <=ARMv4
2013-01-24 12:44:57 -08:00
1496ec13a1 ARM: arm-soc: Fixes for 3.8-rc, take 2
Here's a long-pending fixes pull request for arm-soc (I didn't send one
 in the -rc4 cycle).
 
 The larger deltas are from:
 - A fixup of error paths in the mvsdio driver
 - Header file move for a driver that hadn't been properly converted to
   multiplatform on i.MX, which was causing build failures when included
 - Device tree updates for at91 dealing mostly with their new
   pinctrl setup merged in 3.8 and mistakes in those initial configs
 
 The rest are the normal mix of small fixes all over the place; sunxi,
 omap, imx, mvebu, etc, etc.
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Merge tag 'fixes-for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's a long-pending fixes pull request for arm-soc (I didn't send
  one in the -rc4 cycle).

  The larger deltas are from:

   - A fixup of error paths in the mvsdio driver

   - Header file move for a driver that hadn't been properly converted
     to multiplatform on i.MX, which was causing build failures when
     included

   - Device tree updates for at91 dealing mostly with their new pinctrl
     setup merged in 3.8 and mistakes in those initial configs

  The rest are the normal mix of small fixes all over the place; sunxi,
  omap, imx, mvebu, etc, etc."

* tag 'fixes-for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits)
  mfd: vexpress-sysreg: Don't skip initialization on probe
  ARM: vexpress: Enable A7 cores in V2P-CA15_A7's Device Tree
  ARM: vexpress: extend the MPIDR range used for pen release check
  ARM: at91/dts: correct comment in at91sam9x5.dtsi for mii
  ARM: at91/at91_dt_defconfig: add at91sam9n12 SoC to DT defconfig
  ARM: at91/at91_dt_defconfig: remove memory specification to cmdline
  ARM: at91/dts: add macb mii pinctrl config for kizbox
  ARM: at91: rm9200: remake the BGA as default version
  ARM: at91: fix gpios on i2c-gpio for RM9200 DT
  ARM: at91/at91sam9x5 DTS: add SCK USART pins
  ARM: at91/at91sam9x5 DTS: correct wrong PIO BANK values on u(s)arts
  ARM: at91/at91-pinctrl documentation: fix typo and add some details
  ARM: kirkwood: fix missing #interrupt-cells property
  mmc: mvsdio: use devm_ API to simplify/correct error paths.
  clk: mvebu/clk-cpu.c: fix memory leakage
  ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transport
  ARM: OMAP2+: DT node Timer iteration fix
  ARM: OMAP2+: Fix section warning for omap_init_ocp2scp()
  ARM: OMAP2+: fix build break for omapdrm
  ARM: OMAP2: Fix missing omap2xxx_clkt_vps_late_init function calls
  ...
2013-01-24 12:42:50 -08:00