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Commit Graph

31702 Commits

Author SHA1 Message Date
Rohit Vaswani
6267809f16 ARM: qcom: Add SMP support for KPSSv1
Implement support for the Krait CPU release sequence when the
CPUs are part of the first version of the krait processor
subsystem.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-11 15:00:39 -06:00
Rohit Vaswani
188611af42 ARM: qcom: Re-organize platsmp to make it extensible
This makes it easy to add SMP support for new devices by keying
on a device node for the release sequence. We add the
enable-method property for the cpus property to specify that we
want to use the gcc-msm8660 release sequence (which is going to
look for the global clock controller device node to map some
Scorpion specific power and control registers). We also remove
the nr_cpus detection code as that is done generically in the DT
CPU detection code.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
[sboyd: Port to CPU_METHOD_OF_DECLARE]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-11 15:00:37 -06:00
Stephen Boyd
6c3ff8b11a ARM: Introduce CPU_METHOD_OF_DECLARE() for cpu hotplug/smp
The goal of multi-platform kernels is to remove the need for mach
directories and machine descriptors. To further that goal,
introduce CPU_METHOD_OF_DECLARE() to allow cpu hotplug/smp
support to be separated from the machine descriptors.
Implementers should specify an enable-method property in their
cpus node and then implement a matching set of smp_ops in their
hotplug/smp code, wiring it up with the CPU_METHOD_OF_DECLARE()
macro. When the kernel is compiled we'll collect all the
enable-method smp_ops into one section for use at boot.

At boot time we'll look for an enable-method in each cpu node and
try to match that against all known CPU enable methods in the
kernel. If there are no enable-methods in the cpu nodes we
fallback to the cpus node and try to use any enable-method found
there. If that doesn't work we fall back to the old way of using
the machine descriptor.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-11 15:00:37 -06:00
Kumar Gala
cf1e8f0cd6 ARM: qcom: Rename various msm prefixed functions to qcom
As mach-qcom will support a number of different Qualcomm SoC platforms
we replace the msm prefix on function names with qcom to be a bit more
generic.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-06 16:20:41 -06:00
Kumar Gala
8fc1b0f87d ARM: qcom: Split Qualcomm support into legacy and multiplatform
Introduce a new mach-qcom that will support SoCs that intend to be
multiplatform compatible while keeping mach-msm to legacy SoC/board
support that will not transition over to multiplatform.

As part of this, we move support for MSM8X60, MSM8960 and MSM8974 over
to mach-qcom.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-06 16:20:26 -06:00
Kumar Gala
3f8e8cee2f clocksource: qcom: Move clocksource code out of mach-msm
We intend to share the clocksource code for MSM platforms between legacy
and multiplatform supported qcom SoCs.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-04 17:48:54 -06:00
Kumar Gala
6a032dba7d ARM: msm: kill off hotplug.c
Right now hotplug.c only really implements msm_cpu_die as a wfi.  Just
move that implementation into platsmp.c.  At the same time we use the
existing wfi() instead of inline asm.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-04 16:25:11 -06:00
Rohit Vaswani
52b52b4681 ARM: msm: Remove pen_release usage
pen_release is no longer required as the synchronization
is now managed by generic arm code.
This is done as suggested in https://lkml.org/lkml/2013/6/4/184

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-04 16:25:04 -06:00
Kumar Gala
cc60a1a4d4 ARM: dts: msm: split out msm8660 and msm8960 soc into dts include
Pull the SoC device tree bits into their own files so other boards based
on these SoCs can include them and reduce duplication across a number of
boards.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-03 13:43:34 -06:00
Linus Torvalds
e4c0da2165 ARM: SoC fixes for 3.14-rc1
Here's a set of patches for (hopefully) -rc1. Some of them are fixes,
 but a good number of them also do things such as enable new drivers in
 the defconfigs for platforms that have such devices, increases coverage
 of the multiplatform defconfig and some DTS changes that plumbs up some
 of the devices that now have bindings and driver support.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's a set of patches for (hopefully) -rc1.  Some of them are fixes,
  but a good number of them also do things such as enable new drivers in
  the defconfigs for platforms that have such devices, increases
  coverage of the multiplatform defconfig and some DTS changes that
  plumbs up some of the devices that now have bindings and driver
  support.

  The commit dates are recent; we've mostly collected these fixes in the
  last few days but I also had to rebuild the branch yesterday to sort
  out some internal conflicts which reset the timestamps.  The changes
  should have been tested by each platform maintainer already (and few
  of them have cross-platform impact) so I'm personally not too
  concerned by it at this time"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  ARM: multi_v7_defconfig: remove redundant entries and re-enable TI_EDMA
  ARM: multi_v7_defconfig: add mvebu drivers
  clocksource: kona: Add basic use of external clock
  drivers: bus: fix CCI driver kcalloc call parameters swap
  ARM: dts: bcm28155-ap: Fix Card Detection GPIO
  ARM: multi_v7_defconfig: Select CONFIG_AT803X_PHY
  ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not set
  MAINTAINERS: ARM: SiRF: use regex patterns to involve all SiRF drivers
  ARM: dts: zynq: Add SDHCI nodes
  ARM: hisi: don't select SMP
  ARM: tegra: rebuild tegra_defconfig to add DEBUG_FS
  ARM: multi_v7: copy most options from tegra_defconfig
  ARM: iop32x: fix power off handling for the EM7210 board
  ARM: integrator: restore static map on the CP
  ARM: msm_defconfig: Enable MSM clock drivers
  ARM: dts: msm: Add clock controller nodes and hook into uart
  ARM: OMAP4+: move errata initialization to omap4_pm_init_early
  ARM: OMAP4460: cpuidle: Extend PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD on cpuidle
  ARM: mvebu: fix compilation warning on Armada 370 (i.e. non-SMP)
  ARM: shmobile: r8a7790.dtsi: ficx i2c[0-3] clock reference
  ...
2014-02-02 11:11:06 -08:00
Olof Johansson
f39aa27537 ARM: multi_v7_defconfig: remove redundant entries and re-enable TI_EDMA
TI_EDMA fell out of automatically selected options in the multi_v7
defconfig due to a select being removed from the davinci Kconfig entry. So
we need to re-enable explicitly to not regress some platforms.

The rest is just the result of running 'make multi_v7_defconfig + make
savedefconfig' to remove entries that are no longer needed due to changed
dependencies/selects or defaults.

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 21:04:33 -08:00
Olof Johansson
ad0c07f37b ARM: multi_v7_defconfig: add mvebu drivers
Recent boot farm testing has highlighted some issues with mvebu and
multiplatform kernels.  Increase the test coverage so we can discover
these issues earlier.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 21:04:02 -08:00
Tim Kryger
94db37ad85 ARM: dts: bcm28155-ap: Fix Card Detection GPIO
The board schematic states that the "SD_CARD_DET_N gets pulled to GND
when card is inserted" so the polarity has been updated to active low.

Polarity is now specified with a GPIO define instead of a magic number.

Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 15:11:22 -08:00
Olof Johansson
a00928f558 Second Round of Renesas ARM Based SoC DT Fixes for v3.14
Correct i2c clock references for r8a7790 (R-Car H2) SoC
 
 The error was introduced in 72197ca7a1 ("ARM: shmobile: r8a7790:
 Reference clocks") which is queued up for v3.14.
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Merge tag 'renesas-dt-fixes2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Second Round of Renesas ARM Based SoC DT Fixes for v3.14

Correct i2c clock references for r8a7790 (R-Car H2) SoC

The error was introduced in 72197ca7a1 ("ARM: shmobile: r8a7790:
Reference clocks") which is queued up for v3.14.

* tag 'renesas-dt-fixes2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7790.dtsi: ficx i2c[0-3] clock reference

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 15:08:10 -08:00
Fabio Estevam
c2292c2826 ARM: multi_v7_defconfig: Select CONFIG_AT803X_PHY
Select CONFIG_AT803X_PHY so that we can boot hummingboard via NFS.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 15:04:35 -08:00
Grygorii Strashko
e324f7c9ce ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not set
Drop automatic selection of TI_EDMA from Keystone Kconfig file,
as it produces build warning in case if CONFIG_DMADEVICES is not set:

warning: (ARCH_KEYSTONE) selects TI_EDMA which has unmet direct dependencies (DMADEVICES && (ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE))

Instead enable TI EDMA support from defconfig.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 15:03:53 -08:00
Olof Johansson
167eeb4700 mvebu fixes for v3.13 (incremental #2)
- allow building and booting DT and non-DT plat-orion SoCs
  - catch proper return value for kirkwood_pm_init()
  - properly check return of of_iomap to solve boot hangs (mirabox, others)
  - remove a compile warning on Armada 370 with non-SMP.
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Merge tag 'mvebu-fixes-3.13-2' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixes for v3.13 (incremental #2)

 - allow building and booting DT and non-DT plat-orion SoCs
 - catch proper return value for kirkwood_pm_init()
 - properly check return of of_iomap to solve boot hangs (mirabox, others)
 - remove a compile warning on Armada 370 with non-SMP.

* tag 'mvebu-fixes-3.13-2' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: fix compilation warning on Armada 370 (i.e. non-SMP)
  ARM: mvebu: Fix kernel hang in mvebu_soc_id_init() when of_iomap failed
  ARM: kirkwood: kirkwood_pm_init() should return void
  ARM: orion: provide C-style interrupt handler for MULTI_IRQ_HANDLER

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:59:28 -08:00
Soren Brinkmann
3f7c73023f ARM: dts: zynq: Add SDHCI nodes
Add nodes for the Arasan SDHCI controller to Zynq dts files.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:56 -08:00
Rob Herring
4dd18edc01 ARM: hisi: don't select SMP
SMP is a user configurable option, not a hardware feature and should not
be selected.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:55 -08:00
Stephen Warren
db079b1811 ARM: tegra: rebuild tegra_defconfig to add DEBUG_FS
DEBUG_FS used to be selected by COMMON_CLK_DEBUG, which was enabled
by tegra_defconfig. However, this config option no longer exists, so
no longer selects DEBUG_FS, and nothing else selects it either. So,
"make tegra_defconfig" no longer enables DEBUG_FS in .config.

Rebuild tegra_defconfig on top of next-20140424, while manually
re-enabling DEBUG_FS.

Reasons for removed entries are:
- I2C_MUX: selected by MEDIA_SUBDRV_AUTOSELECT
- DRM_PANEL: selected by DRM_TEGRA
- NEW_LEDS: selected by many things; at least VT
- LEDS_CLASS: selected by many things; at least VT
- LEDS_TRIGGERS: selected by many things; at least VT
- COMMON_CLK_DEBUG: no longer exists

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-01-31 14:58:54 -08:00
Stephen Warren
d231fab1d0 ARM: multi_v7: copy most options from tegra_defconfig
multi_v7_defconfig was missing a large number of options that were in
tegra_defconfig. This patch adds them. The changes fall into the
following categories:

* Enable more Tegra SoC options/drivers.
* Enable more drivers for Tegra boards.
* Enable more options that are useful for running distros.

The patch removes a few lines as well, simply because those options are
now selected by something else, and "make savedefconfig" removes them. I
verified that the options appear in .config after
"make multi_v7_defconfig".

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:54 -08:00
Linus Walleij
afbf1e156c ARM: iop32x: fix power off handling for the EM7210 board
This board was missed when converting all the others to proper
abstracted GPIO handling. Fix it up the right way by requesting
and driving GPIO line 0 high through gpiolib to power off the
machine.

Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:53 -08:00
Linus Walleij
608914b376 ARM: integrator: restore static map on the CP
Commit 78d1632183 deleted the
static mappings of the core modules, but this static map is
still needed on the Integrator/CP (not the Integrator/AP).

Restore the static map on the Integrator/CP.

Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:52 -08:00
Stephen Boyd
9d2a5e20b1 ARM: msm_defconfig: Enable MSM clock drivers
This allows us to probe the clock controller devices and boot to a
serial console on all DT enabled MSM platforms.

Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:52 -08:00
Stephen Boyd
3933d26783 ARM: dts: msm: Add clock controller nodes and hook into uart
Add the necessary DT nodes to probe the clock controllers on MSM
devices as well as hook up the uart nodes to the clock
controllers. This should allow us to boot to a serial console on
all DT enabled MSM platforms.

Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:58:51 -08:00
Nishanth Menon
de70af494c ARM: OMAP4+: move errata initialization to omap4_pm_init_early
Move all OMAP4 PM errata initializations to centralized location in
omap4_pm_init_early. This allows for users to utilize the erratas
in various submodules as needed.

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:57:37 -08:00
Strashko, Grygorii
74ed7bdcb4 ARM: OMAP4460: cpuidle: Extend PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD on cpuidle
The same workaround as ff999b8a09
"ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC ..."
need to be applied not only when system is booting, but when MPUSS hits
OSWR state through CPUIdle too. Without this WA the same issue is
reproduced now on boards PandaES and Tablet/Blaze with SOM OMAP4460
when CONFIG_CPU_IDLE is enabled.
After MPUSS has enterred OSWR and waken up:
- GIC distributor became disabled forever
- scheduling is not performed any more

Cc: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reported-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-31 14:57:32 -08:00
Linus Torvalds
b399c46ea0 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
 - a new jpeg codec driver for Samsung Exynos (jpeg-hw-exynos4)
 - a new dvb frontend for ds2103 chipset (m88ds2103)
 - a new sensor driver for Samsung S5K5BAF UXGA (s5k5baf)
 - new drivers for R-Car VSP1
 - a new radio driver: radio-raremono
 - a new tuner driver for ts2022 chipset (m88ts2022)
 - the analog part of em28xx is now a separate module that only
   load/runs if the device is not a pure digital TV device
 - added a staging driver for bcm2048 radio devices
 - the omap 2 video driver (omap24xx) was moved to staging.  This driver
   is for an old hardware and uses a deprecated Kernel internal API.  If
   nobody cares enough to fix it, it would be removed on a couple Kernel
   releases
 - the sn9c102 driver was moved to staging.  This driver was replaced by
   gspca, and disabled on some distros, as almost all devices are known
   to work properly with gspca.  It should be removed from kernel on a
   couple Kernel releases
 - lots of driver fixes, improvements and cleanups

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (421 commits)
  [media] media: v4l2-dev: fix video device index assignment
  [media] rc-core: reuse device numbers
  [media] em28xx-cards: properly initialize the device bitmap
  [media] Staging: media: Fix line length exceeding 80 characters in as102_drv.c
  [media] Staging: media: Fix line length exceeding 80 characters in as102_fe.c
  [media] Staging: media: Fix quoted string split across line in as102_fe.c
  [media] media: st-rc: Add reset support
  [media] m2m-deinterlace: fix allocated struct type
  [media] radio-usb-si4713: fix sparse non static symbol warnings
  [media] em28xx-audio: remove needless check before usb_free_coherent()
  [media] au0828: Fix sparse non static symbol warning
  Revert "[media] go7007-usb: only use go->dev after allocated"
  [media] em28xx-audio: provide an error code when URB submit fails
  [media] em28xx: fix check for audio only usb interfaces when changing the usb alternate setting
  [media] em28xx: fix usb alternate setting for analog and digital video endpoints > 0
  [media] em28xx: make 'em28xx_ctrl_ops' static
  em28xx-alsa: Fix error patch for init/fini
  [media] em28xx-audio: flush work at .fini
  [media] drxk: remove the option to load firmware asynchronously
  [media] em28xx: adjust period size at runtime
  ...
2014-01-31 09:31:14 -08:00
Linus Torvalds
14164b46fc Bug-fixes:
- Xen ARM couldn't use the new FIFO events
  - Xen ARM couldn't use the SWIOTLB if compiled as 32-bit with 64-bit PCIe devices.
  - Grant table were doing needless M2P operations.
  - Ratchet down the self-balloon code so it won't OOM.
  - Fix misplaced kfree in Xen PVH error code paths.
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Merge tag 'stable/for-linus-3.14-rc0-late-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull Xen bugfixes from Konrad Rzeszutek Wilk:
 "Bug-fixes for the new features that were added during this cycle.

  There are also two fixes for long-standing issues for which we have a
  solution: grant-table operations extra work that was not needed
  causing performance issues and the self balloon code was too
  aggressive causing OOMs.

  Details:
   - Xen ARM couldn't use the new FIFO events
   - Xen ARM couldn't use the SWIOTLB if compiled as 32-bit with 64-bit PCIe devices.
   - Grant table were doing needless M2P operations.
   - Ratchet down the self-balloon code so it won't OOM.
   - Fix misplaced kfree in Xen PVH error code paths"

* tag 'stable/for-linus-3.14-rc0-late-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/pvh: Fix misplaced kfree from xlated_setup_gnttab_pages
  drivers: xen: deaggressive selfballoon driver
  xen/grant-table: Avoid m2p_override during mapping
  xen/gnttab: Use phys_addr_t to describe the grant frame base address
  xen: swiotlb: handle sizeof(dma_addr_t) != sizeof(phys_addr_t)
  arm/xen: Initialize event channels earlier
2014-01-31 08:38:18 -08:00
Linus Torvalds
f8a504c404 ARM: SoC late changes for v3.14
These are changes that arrived a little late but were considered
 self-contained enough to still go in for v3.14.
 
 They are all device tree updtes this time around, and mainly for
 Broadcom SoCs.
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Merge tag 'late-dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late changes from Kevin Hilman:
 "These are changes that arrived a little late but were considered
  self-contained enough to still go in for v3.14.

  They are all device tree updtes this time around, and mainly for
  Broadcom SoCs"

* tag 'late-dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: moxart: move fixed rate clock child node to board level dts
  clk: bcm281xx: define kona clock binding
  ARM: dts: add usb udc support to bcm281xx
  ARM: dts: Specify clocks for timer on bcm11351
  Documentation: dt: kona-timer: Add clocks property
  ARM: dts: Specify clocks for SDHCIs on bcm11351
  Documentation: dt: kona-sdhci: Add clocks property
  ARM: dts: Specify clocks for UARTs on bcm11351
  ARM: dts: bcm281xx: Add i2c busses
  ARM: dts: Declare clocks as fixed on bcm11351
  ARM: dts: bcm28155-ap: Enable all the i2c busses
2014-01-30 18:08:27 -08:00
Julien Grall
47c542050d xen/gnttab: Use phys_addr_t to describe the grant frame base address
On ARM, address size can be 32 bits or 64 bits (if CONFIG_ARCH_PHYS_ADDR_T_64BIT
is enabled).
We can't assume that the grant frame base address will always fits in an
unsigned long. Use phys_addr_t instead of unsigned long as argument for
gnttab_setup_auto_xlat_frames.

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
2014-01-30 12:56:34 +00:00
Ian Campbell
e17b2f114c xen: swiotlb: handle sizeof(dma_addr_t) != sizeof(phys_addr_t)
The use of phys_to_machine and machine_to_phys in the phys<=>bus conversions
causes us to lose the top bits of the DMA address if the size of a DMA address is not the same as the size of the phyiscal address.

This can happen in practice on ARM where foreign pages can be above 4GB even
though the local kernel does not have LPAE page tables enabled (which is
totally reasonable if the guest does not itself have >4GB of RAM). In this
case the kernel still maps the foreign pages at a phys addr below 4G (as it
must) but the resulting DMA address (returned by the grant map operation) is
much higher.

This is analogous to a hardware device which has its view of RAM mapped up
high for some reason.

This patch makes I/O to foreign pages (specifically blkif) work on 32-bit ARM
systems with more than 4GB of RAM.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-01-30 12:54:20 +00:00
Julien Grall
8b271d57b5 arm/xen: Initialize event channels earlier
Event channels driver needs to be initialized very early. Until now, Xen
initialization was done after all CPUs was bring up.

We can safely move the initialization to an early initcall.

Also use a cpu notifier to:
    - Register the VCPU when the CPU is prepared
    - Enable event channel IRQ when the CPU is running

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-01-30 12:52:59 +00:00
Linus Torvalds
17c7f85460 Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 - new driver for bcm281xx watchdog device
 - new driver for gpio based watchdog devices
 - remove DEFINE_PCI_DEVICE_TABLE macro for watchdog device drivers
 - conversion of davinci_wdt and mpc8xxx_wdt to watchdog core
 - improvements on davinci_wdt, at91/dt, at91sam9_wdt and s3c2410_wdt
 - Auto-detect IO address and expand supported chips on w836* super-I/O
   chipsets
 - core: Make dt "timeout-sec" property work on drivers w/out min/max
 - fix Kconfig dependencies
 - sirf: Remove redundant of_match_ptr helper
 - mach-moxart: add restart handler
 - hpwdt patch to display better panic information
 - imx2_wdt: disable watchdog timer during low power mode

* git://www.linux-watchdog.org/linux-watchdog: (31 commits)
  watchdog: w83627hf_wdt: Reset watchdog trigger during initialization
  watchdog: w83627hf: Add support for W83697HF and W83697UG
  watchdog: w83627hf: Auto-detect IO address and supported chips
  watchdog: at91sam9_wdt: increase security margin on watchdog counter reset
  watchdog: at91sam9_wdt: avoid spurious watchdog reset during init
  watchdog: at91sam9_wdt: fix secs_to_ticks
  ARM: at91/dt: add watchdog properties to kizbox board
  ARM: at91/dt: add sam9 watchdog default options to SoCs
  watchdog: at91sam9_wdt: update device tree doc
  watchdog: at91sam9_wdt: better watchdog support
  watchdog: sp805_wdt depends also on ARM64
  watchdog: mach-moxart: add restart handler
  watchdog: mpc8xxx_wdt convert to watchdog core
  watchdog: sirf: Remove redundant of_match_ptr helper
  watchdog: hpwdt patch to display informative string
  watchdog: dw_wdt: remove build dependencies
  watchdog: imx2_wdt: disable watchdog timer during low power mode
  watchdog: s3c2410_wdt: Report when the watchdog reset the system
  watchdog: s3c2410_wdt: use syscon regmap interface to configure pmu register
  watchdog: s3c2410_wdt: Handle rounding a little better for timeout
  ...
2014-01-29 19:57:43 -08:00
Linus Torvalds
e914e3f48d Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull more ARM updates from Russell King:
 "Some further changes for this merge window:
   - fix bug building with gcc 4.6.4 and EABI.
   - fix pgtbl macro with some LPAE configurations
   - fix initrd override - FDT was overriding the command line, and it
     should be the other way around.
   - fix byteswap of instructions in undefined instruction handler
   - add basic support for SolidRun Hummingboard and Cubox-i boards"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: fix building with gcc 4.6.4
  ARM: 7941/2: Fix incorrect FDT initrd parameter override
  ARM: 7947/1: Make pgtbl macro more robust
  ARM: 7946/1: asm: __und_usr_thumb need byteswap instructions in BE case
  ARM: 7930/1: Introduce atomic MMIO modify
  ARM: imx: initial SolidRun Cubox-i support
  ARM: imx: initial SolidRun HummingBoard support
2014-01-29 18:20:41 -08:00
Linus Torvalds
0e47c969c6 MTD updates for 3.14:
- Add me (Brian Norris) as an additional MTD maintainer (it'd be nice to get
    David's "ack" for this; I'm sure he approves, but he's been pretty silent
    lately)
  - Add Ezequiel Garcie as maintainer for the pxa3xx NAND driver
  - Last (?) round of pxa3xx improvements for supporting Armada 370/XP
  - Typical churn in driver boilerplate (OOM messages, printk()'s, devm_*, etc.)
  - Quad read mode support for SPI NOR driver (m25p80)
  - Update Davinci NAND driver to prepare for use on new platforms
  - Begin to kill off NAND_MAX_{PAGE,OOB}SIZE macros; more work is pending
  - Miscellaneous NAND device support (new IDs)
  - Add READ RETRY support for Micron MLC NAND
  - Support new GPMI NAND ECC layout device-tree binding
  - Avoid mapping stack/vmalloc() memory for GPMI NAND DMA
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Merge tag 'for-linus-20140127' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 - Add me (Brian Norris) as an additional MTD maintainer (it'd be nice to get
   David's "ack" for this; I'm sure he approves, but he's been pretty silent
   lately)
 - Add Ezequiel Garcie as maintainer for the pxa3xx NAND driver
 - Last (?) round of pxa3xx improvements for supporting Armada 370/XP
 - Typical churn in driver boilerplate (OOM messages, printk()'s, devm_*, etc.)
 - Quad read mode support for SPI NOR driver (m25p80)
 - Update Davinci NAND driver to prepare for use on new platforms
 - Begin to kill off NAND_MAX_{PAGE,OOB}SIZE macros; more work is pending
 - Miscellaneous NAND device support (new IDs)
 - Add READ RETRY support for Micron MLC NAND
 - Support new GPMI NAND ECC layout device-tree binding
 - Avoid mapping stack/vmalloc() memory for GPMI NAND DMA

* tag 'for-linus-20140127' of git://git.infradead.org/linux-mtd: (151 commits)
  mtd: gpmi: add sanity check when mapping DMA for read_buf/write_buf
  mtd: gpmi: allocate a proper buffer for non ECC read/write
  mtd: m25p80: Set rx_nbits for Quad SPI transfers
  mtd: m25p80: Enable Quad SPI read transfers for s25fl512s
  mtd: s3c2410: Merge plat/regs-nand.h into s3c2410.c
  mtd: mtdram: add missing 'const'
  mtd: m25p80: assign default read command
  mtd: nuc900_nand: remove redundant return value check of platform_get_resource()
  mtd: plat_nand: remove redundant return value check of platform_get_resource()
  mtd: nand: add Intel manufacturer ID
  mtd: nand: add SanDisk manufacturer ID
  mtd: nand: add support for Samsung K9LCG08U0B
  mtd: nand: pxa3xx: Add support for 2048 bytes page size devices
  mtd: m25p80: Use OPCODE_QUAD_READ_4B for 4-byte addressing
  mtd: nand: don't use {read,write}_buf for 8-bit transfers
  mtd: nand: use __packed shorthand
  mtd: nand: support Micron READ RETRY
  mtd: nand: add generic READ RETRY support
  mtd: nand: add ONFI vendor block for Micron
  mtd: nand: localize ECC failures per page
  ...
2014-01-28 18:56:37 -08:00
Linus Torvalds
268943fb75 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem update from Bryan Wu:
 "Basically this cycle is mostly cleanup for LED subsystem"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: s3c24xx: Remove hardware.h inclusion
  leds: replace list_for_each with list_for_each_entry
  leds: kirkwood: Cleanup in header files
  leds: pwm: Remove a warning on non-DT platforms
  leds: leds-pwm: fix duty time overflow.
  leds: leds-mc13783: Remove unneeded mc13xxx_{un}lock
  leds: leds-mc13783: Remove duplicate field in platform data
  drivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base'
  leds: lp5523: Support LED MUX configuration on running a pattern
  leds: lp5521/5523: Fix multiple engine usage bug
  LEDS: tca6507 - fix up some comments.
  LEDS: tca6507: add device-tree support for GPIO configuration.
  LEDS: tca6507 - fix bugs in parsing of device-tree configuration.
2014-01-28 18:53:01 -08:00
Linus Torvalds
d30492adea The second half of the clock framework pull requeust for 3.14 is
dominated by platform support for Qualcomm's MSM SoCs, DT binding
 updates for TI's OMAP-ish processors and additional support for Samsung
 chips. Additionally there are other smaller clock driver changes and
 several last minute fixes. This pull request also includes the HiSilicon
 support that depends on the already-merged arm-soc pull request.
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Merge tag 'clk-for-linus-3.14-part2' of git://git.linaro.org/people/mike.turquette/linux

Pull more clock framework changes from Mike Turquette:
 "The second half of the clock framework pull requeust for 3.14 is
  dominated by platform support for Qualcomm's MSM SoCs, DT binding
  updates for TI's OMAP-ish processors and additional support for
  Samsung chips.

  Additionally there are other smaller clock driver changes and several
  last minute fixes.  This pull request also includes the HiSilicon
  support that depends on the already-merged arm-soc pull request"

[ Fix up stupid compile error in the source tree with evil merge  - Grumpy Linus ]

* tag 'clk-for-linus-3.14-part2' of git://git.linaro.org/people/mike.turquette/linux: (49 commits)
  clk: sort Makefile
  clk: sunxi: fix overflow when setting up divided factors
  clk: Export more clk-provider functions
  dt-bindings: qcom: Fix warning with duplicate dt define
  clk: si5351: remove variant from platform_data
  clk: samsung: Remove unneeded semicolon
  clk: qcom: Fix modular build
  ARM: OMAP3: use DT clock init if DT data is available
  ARM: AM33xx: remove old clock data and link in new clock init code
  ARM: AM43xx: Enable clock init
  ARM: OMAP: DRA7: Enable clock init
  ARM: OMAP4: remove old clock data and link in new clock init code
  ARM: OMAP2+: io: use new clock init API
  ARM: OMAP2+: PRM: add support for initializing PRCM clock modules from DT
  ARM: OMAP3: hwmod: initialize clkdm from clkdm_name
  ARM: OMAP: hwmod: fix an incorrect clk type cast with _get_clkdm
  ARM: OMAP2+: clock: use driver API instead of direct memory read/write
  ARM: OMAP2+: clock: add support for indexed memmaps
  ARM: dts: am43xx clock data
  ARM: dts: AM35xx: use DT clock data
  ...
2014-01-28 18:44:53 -08:00
Russell King
5efa906486 Merge branch 'cubox-i-init' into for-linus 2014-01-28 21:38:58 +00:00
Russell King
f5137a45c2 Merge branches 'fixes' and 'misc' into for-linus 2014-01-28 21:38:48 +00:00
Boris BREZILLON
705b675db9 ARM: at91/dt: add watchdog properties to kizbox board
Add watchdog specific config for kizbox board.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-01-28 21:33:38 +01:00
Boris BREZILLON
fe46aa679f ARM: at91/dt: add sam9 watchdog default options to SoCs
Set default watchdog options in every SoC compatible with the sam9 watchdog.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-01-28 21:33:14 +01:00
Markus Mayer
6e2ac20e9c watchdog: bcm281xx: Debugfs support
This change introduces debugfs support for the BCM281xx watchdog driver.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-01-28 21:17:53 +01:00
Markus Mayer
6adb730dc2 watchdog: bcm281xx: Watchdog Driver
This commit adds support for the watchdog timer used on the BCM281xx
family of SoCs.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-01-28 21:13:50 +01:00
Russell King
d326b65c57 ARM: fix building with gcc 4.6.4
GCC fails to build the kernel if EABI is selected, and the default FPU
is selected.  Avoid this by explicitly stating that we want VFP with
EABI.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-28 18:31:17 +00:00
Ben Peddell
4c235cb9e3 ARM: 7941/2: Fix incorrect FDT initrd parameter override
Commit 65939301ac (arm: set initrd_start/initrd_end for fdt scan)
caused the FDT initrd_start and initrd_end to override the
phys_initrd_start and phys_initrd_size set by the initrd= kernel
parameter.  With this patch initrd_start and initrd_end will be
overridden if phys_initrd_start and phys_initrd_size are set by the
kernel initrd= parameter.

Fixes: 65939301ac (arm: set initrd_start/initrd_end for fdt scan)

Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-28 14:34:23 +00:00
Christopher Covington
2ab4e8c06d ARM: 7947/1: Make pgtbl macro more robust
The pgtbl macro couldn't handle the specific
(TEXT_OFFSET - PG_DIR_SIZE) value that the combination of
MSM platforms and LPAE created:

head.S:163: Error: invalid constant (203000) after fixup

Regardless of whether this combination of configuration options
will work on currently support platforms at run time, make it
at least assemble properly.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-28 14:34:03 +00:00
Victor Kamensky
f8fe23ec4e ARM: 7946/1: asm: __und_usr_thumb need byteswap instructions in BE case
__und_usr_thumb function deals with thumb2 opcodes. In case of BE
image, it needs to byteswap half word thumb2 encoded instructions
before further processing them.

Without this fix BE image user-land thread executing first VFP
instruction encoded in thumb2 fails with SIGILL, because kernel
does not recognize instruction and does not enable VFP.

Reported-by: Corey Melton <comelton@cisco.com>
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-28 14:34:02 +00:00
Ezequiel Garcia
c5ca95b507 ARM: 7930/1: Introduce atomic MMIO modify
Some SoC have MMIO regions that are shared across orthogonal
subsystems. This commit implements a possible solution for the
thread-safe access of such regions through a spinlock-protected API.

Concurrent access is protected with a single spinlock for the
entire MMIO address space. While this protects shared-registers,
it also serializes access to unrelated/unshared registers.

We add relaxed and non-relaxed variants, by using writel_relaxed and writel,
respectively. The rationale for this is that some users may not require
register write completion but only thread-safe access to a register.

Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-28 14:06:25 +00:00
Yinghai Lu
ad6492b80f memblock, nobootmem: add memblock_virt_alloc_low()
The new memblock_virt APIs are used to replaced old bootmem API.

We need to allocate page below 4G for swiotlb.

That should fix regression on Andrew's system that is using swiotlb.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-27 21:02:38 -08:00