Commit Graph

107 Commits

Author SHA1 Message Date
Linus Walleij 94a07de190 ARM: integrator: drop EBI access use syscon
The EBI lookup is not longer in use: this has been moved to the
NAND chip driver. The syscon node is better accessed indirectly
using the regmap like the NAND chip driver does, so let's use
the syscon to set the modem control signals RTS/CTS through the
dedicated syscon register.

We also migrate the decoder status "SC_DEC" register that
enumerate the logic modules using syscon.

Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-17 23:25:33 -08:00
Linus Walleij 359a3d38e6 ARM: integrator: cut down on static maps
This removes all the unused static maps on the Integrator/AP
and Integrator/CP and also take this opportunity to strip down
a big list of unused #includes from each boardfile.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-08-31 09:30:33 +02:00
Linus Walleij 33aa62b9a1 ARM: integrator: delete some auxdata
There is just a few auxdata entries still needed on the Integrators:

- UART RTS/CTS callbacks for Integrator/AP
- MMC/SD special card detect quirk for Integrator/CP

Delete the rest.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-08-31 09:30:33 +02:00
Kefeng Wang 435ebcbc9f arm: use of_platform_default_populate() to populate
Use helper of_platform_default_populate() in linux/of_platform
when possible, instead of calling of_platform_populate() with
the default match table.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-23 15:00:39 -05:00
Linus Walleij 91011a7605 ARM: integrator: move flash registration to device tree
The flash on the Integrator was already defined by the device
tree, but VPP control and flash protection was in the
boardfiles. Simply add the compatible string
"arm,versatile-flash" and the special add-on code for flash
programming voltage and protection kicks in in the MTD
layer.

Remove the board file code and augment the device tree in
one go for seamless transition.

Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-04 10:33:16 +02:00
Sudeep Holla 1e5f0519f4 ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion
The header asm/hardware/arm_timer.h is included in various machine
specific files to access TIMER_CTRL and initialise to a known state.

This patch introduces a new function sp804_timer_disable to disable
the SP804 timers and uses the same for initialising the timers to
known(off) state, thereby removing the dependency on the header
asm/hardware/arm_timer.h

This change is in prepartion to move sp804 timer support out of arch/arm
so that it can be used on ARM64 platforms.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-02 09:58:18 +01:00
Linus Walleij f956a785a2 soc: move SoC driver for the ARM Integrator
This creates a new SoC bus driver for the ARM Integrator
family core modules to register the SoC bus and provide
sysfs info for the core module. We delete the corresponding
code from the Integrator machine and select this driver to
get a clean result.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-11-13 10:32:05 +01:00
Linus Walleij b437c52c29 ARM: integrator: move restart to the device tree
Using the augmented reset driver for the Versatile family,
we can move the reset handling for the Integrator out of the
machine. We add a "syscon" attribute to the core module, and
access the syscon registers using this handle. We need to
select SYSCON, POWER, POWER_RESET and POWER_RESET_VERSATILE
in order for the restart functionality to always be
available on all systems (it should not be optional).

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-11-13 10:32:02 +01:00
Linus Walleij beb5818bd0 ARM: integrator: move AP timer to clocksource
This moves the timer/clocksource implementation for the
Integrator/AP down to drivers/clocksource and augments the
driver a little to use CLOCKSOURCE_OF_DECLARE(). Remove
the static mapping of the timer blocks while we're at it.

Tested on the Integrator/AP.

Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-10-28 15:42:34 +01:00
Olof Johansson 12af7011e9 DT IRQ and clock support for Versatile platforms
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Merge tag 'versatile-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next/soc

Merge "DT IRQ and clock support for Versatile platforms" from Rob Herring.

This branch moves IRQ and clock support over to DT for the versatile
platforms.

* tag 'versatile-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  clk: versatile: add versatile OSC support
  dts: versatile: add clock tree
  ARM: timer-sp: allow getting timer1 clock from DT to fallback to legacy clock
  dt/bindings: add compatible string for versatile osc clock
  dt/bindings: arm-boards: add binding for Versatile core module
  dts: versatile: add pl180 compatible strings
  ARM: versatile: remove init_irq hook for DT boot
  ARM: integrator: convert to use irqchip_init
  irqchip: versatile-fpga: add support for arm,versatile-sic
  irqchip: versatile-fpga: Add IRQCHIP_DECLARE support
  dts: versatile: add missing irq controller properties

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-07 21:47:03 -07:00
Rob Herring 44fa72d129 ARM: integrator: convert to use irqchip_init
Now that versatile-fpga irqchip has IRQCHIP_DECLARE support, the interrupt
related initialization can be removed.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2014-06-24 14:15:59 -05:00
Linus Walleij 11f9323a48 ARM: integrator: fix OF-related regression
Commit 07e461cd7e
"of: Ensure unique names without sacrificing determinism"
caused a boot failure regression on the Integrator machines.

The problem is probably caused by fiddling too much with
the device tree population in the OF init function, such
as passing the SoC bus device as parent when populating
the device tree.

This patch fixes the problem by:

- Avoiding to explicitly look up the tree root
- Look up devices needed before device population from
  the match only, passing NULL as root
- Passing NULL as root and parent when calling
  of_platform_populate()

After this the Integrators boot again. Tested on
Integrator/AP and Integrator/CP.

Cc: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-06-24 14:27:03 +02:00
Linus Torvalds 2bf73dd61a ARM: SoC: late cleanups
These could not be part of the first cleanup branch, because they either
 came too late in the cycle, or they have dependencies on other branches.
 Important changes are:
 
 * The integrator platform is almost multiplatform capable after
   some reorganization (Linus Walleij)
 * Minor cleanups on Zynq (Michal Simek)
 * Lots of changes for Exynos and other Samsung platforms, including
   further preparations for multiplatform support and the clocks bindings
   are rearranged.
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Merge tag 'tags/cleanup2-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late cleanups from Arnd Bergmann:
 "These could not be part of the first cleanup branch, because they
  either came too late in the cycle, or they have dependencies on other
  branches.  Important changes are:

   - The integrator platform is almost multiplatform capable after some
     reorganization (Linus Walleij)
   - Minor cleanups on Zynq (Michal Simek)
   - Lots of changes for Exynos and other Samsung platforms, including
     further preparations for multiplatform support and the clocks
     bindings are rearranged"

* tag 'tags/cleanup2-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
  devicetree: fix newly added exynos sata bindings
  ARM: EXYNOS: Fix compilation error in cpuidle.c
  ARM: S5P64X0: Explicitly include linux/serial_s3c.h in mach/pm-core.h
  ARM: EXYNOS: Remove hardware.h file
  ARM: SAMSUNG: Remove hardware.h inclusion
  ARM: S3C24XX: Remove invalid code from hardware.h
  dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clock
  ARM: dts: Keep some essential LDOs enabled for arndale-octa board
  ARM: dts: Disable MDMA1 node for arndale-octa board
  ARM: S3C64XX: Fix build for implicit serial_s3c.h inclusion
  serial: s3c: Fix build of header without serial_core.h preinclusion
  ARM: EXYNOS: Allow wake-up using GIC interrupts
  ARM: EXYNOS: Stop using legacy Samsung PM code
  ARM: EXYNOS: Remove PM initcalls and useless indirection
  ARM: EXYNOS: Fix abuse of CONFIG_PM
  ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.h
  ARM: SAMSUNG: Move common save/restore helpers to separate file
  ARM: SAMSUNG: Move Samsung PM debug code into separate file
  ARM: SAMSUNG: Consolidate PM debug functions
  ARM: SAMSUNG: Use debug_ll_addr() to get UART base address
  ...
2014-04-05 15:46:37 -07:00
Linus Torvalds cbda94e039 ARM: SoC: driver changes
These changes are mostly for ARM specific device drivers that either
 don't have an upstream maintainer, or that had the maintainer ask
 us to pick up the changes to avoid conflicts. A large chunk of this
 are clock drivers (bcm281xx, exynos, versatile, shmobile), aside from
 that, reset controllers for STi as well as a large rework of the
 Marvell Orion/EBU watchdog driver are notable.
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Merge tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver changes from Arnd Bergmann:
 "These changes are mostly for ARM specific device drivers that either
  don't have an upstream maintainer, or that had the maintainer ask us
  to pick up the changes to avoid conflicts.

  A large chunk of this are clock drivers (bcm281xx, exynos, versatile,
  shmobile), aside from that, reset controllers for STi as well as a
  large rework of the Marvell Orion/EBU watchdog driver are notable"

* tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (99 commits)
  Revert "dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac."
  Revert "net: stmmac: Add SOCFPGA glue driver"
  ARM: shmobile: r8a7791: Fix SCIFA3-5 clocks
  ARM: STi: Add reset controller support to mach-sti Kconfig
  drivers: reset: stih416: add softreset controller
  drivers: reset: stih415: add softreset controller
  drivers: reset: Reset controller driver for STiH416
  drivers: reset: Reset controller driver for STiH415
  drivers: reset: STi SoC system configuration reset controller support
  dts: socfpga: Add sysmgr node so the gmac can use to reference
  dts: socfpga: Add support for SD/MMC on the SOCFPGA platform
  reset: Add optional resets and stubs
  ARM: shmobile: r7s72100: fix bus clock calculation
  Power: Reset: Generalize qnap-poweroff to work on Synology devices.
  dts: socfpga: Update clock entry to support multiple parents
  ARM: socfpga: Update socfpga_defconfig
  dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac.
  net: stmmac: Add SOCFPGA glue driver
  watchdog: orion_wdt: Use %pa to print 'phys_addr_t'
  drivers: cci: Export CCI PMU revision
  ...
2014-04-05 15:37:40 -07:00
Michael Opdenacker 78f6db9952 ARM: 8000/1: misc: remove deprecated IRQF_DISABLED
This patch removes the use of the IRQF_DISABLED flag
from miscellaneous code in mach-xxx and plat-xxx

This flag is a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-03-12 10:32:38 +00:00
Linus Walleij 1b1ef755bd ARM: integrator: localize the hardware.h header
As we move toward multiplatform support for the Integrator family
we need to localize all <mach/*> headers. This moves the hardware.h
header down to the machine folder. There are no users outside the
machine in the kernel.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Jonathan Austin <jonathan.austin@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-26 13:49:07 +01:00
Linus Walleij f8487aa85b ARM: integrator: merge platform.h to hardware.h
There is no need to have the two separate headers <mach/platform.h>
and <mach/hardware.h>, especially since we are now going to make them
local files. There is not one single driver outside the mach-integrator
folder referencing any of the files.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Jonathan Austin <jonathan.austin@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-26 13:49:06 +01:00
Linus Walleij c36928adfc ARM: integrator: localize the lm.h header
As we move toward multiplatform support for the Integrator family
we need to localize all <mach/*> headers. This moves the lm.h
header down to the machine folder as it is not used outside it
anyway.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Jonathan Austin <jonathan.austin@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-26 13:49:05 +01:00
Linus Walleij 09c978bc7b ARM: integrator: switch to fetch clocks from device tree
This atomic commit changes the Integrator clock implementation
and the machines to register clocks from the device tree and
use these instead of the previous hard-coded clocks.

In the clock implementation all hard-coded clocks and the
special initialization function call goes away, and is
replaced by two compatible strings for the two clocks
available on the core module.

Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13 11:20:42 +01:00
Linus Torvalds 9b6d351a75 ARM: SoC DT updates for 3.14
DT and DT-conversion-related changes for various ARM platforms. Most
 of these are to enable various devices on various boards, etc, and not
 necessarily worth enumerating.
 
 New boards and systems continue to come in as new devicetree files that
 don't require corresponding C changes any more, which is indicating that
 the system is starting to work fairly well.
 
 A few things worth pointing out:
 
 * ST Ericsson ux500 platforms have made the major push to move over to fully
   support the platform with DT.
 * Renesas platforms continue their conversion over from legacy platform devices
   to DT-based for hardware description.
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Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC DT updates from Olof Johansson:
 "DT and DT-conversion-related changes for various ARM platforms.  Most
  of these are to enable various devices on various boards, etc, and not
  necessarily worth enumerating.

  New boards and systems continue to come in as new devicetree files
  that don't require corresponding C changes any more, which is
  indicating that the system is starting to work fairly well.

  A few things worth pointing out:

   * ST Ericsson ux500 platforms have made the major push to move over
     to fully support the platform with DT
   * Renesas platforms continue their conversion over from legacy
     platform devices to DT-based for hardware description"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (327 commits)
  ARM: dts: SiRF: add pin group for USP0 with only RX or TX frame sync
  ARM: dts: SiRF: add lost usp1_uart_nostreamctrl pin group for atlas6
  ARM: dts: sirf: add lost minigpsrtc device node
  ARM: dts: sirf: add clock, frequence-voltage table for CPU0
  ARM: dts: sirf: add lost bus_width, clock and status for sdhci
  ARM: dts: sirf: add lost clocks for cphifbg
  ARM: dts: socfpga: add pl330 clock
  ARM: dts: socfpga: update L2 tag and data latency
  arm: sun7i: cubietruck: Enable the i2c controllers
  ARM: dts: add support for EXYNOS4412 based TINY4412 board
  ARM: dts: Add initial support for Arndale Octa board
  ARM: bcm2835: add USB controller to device tree
  ARM: dts: MSM8974: Add MMIO architected timer node
  ARM: dts: MSM8974: Add restart node
  ARM: dts: sun7i: external clock outputs
  ARM: dts: sun7i: Change 32768 Hz oscillator node name to clk@N style
  ARM: dts: sun7i: Add pin muxing options for clock outputs
  ARM: dts: sun7i: Add rtp controller node
  ARM: dts: sun5i: Add rtp controller node
  ARM: dts: sun4i: Add rtp controller node
  ...
2014-01-23 18:45:38 -08:00
Linus Walleij 307b96677c ARM: integrator: move EBI to the device tree
This moves the External Bus Interface (EBI) over to a device
tree node and deletes the static mappings from the platform.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-04 16:22:31 +01:00
Linus Walleij 78d1632183 ARM: integrator: delete static core module mappings
Now that the core module base is taken from the device tree
both for platform initialization and cpufreq, let's delete
the static mappings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-04 16:22:31 +01:00
Stephen Boyd 7a4143fac8 ARM: integrator: Switch to sched_clock_register()
The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-11-21 15:41:00 -08:00
Linus Walleij df36680f1a ARM: integrator: core module registers from compatible strings
This augments the core machine code for the Integrator platforms
to get their references to the core module device nodes by
using compatible strings instead of predefined node names
and rename the CP syscon node to be simply "syscon".

Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16 14:10:14 +02:00
Linus Walleij bb4dbefe4c ARM: integrator: move CM base into device tree
This moves the core module (CM) control base into the device
tree. It is a simple memory range of 0x200 bytes. Move the
cm header down into the machine directory and unexport the
cm_control() symbol as no modules are using it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16 14:09:56 +02:00
Linus Walleij 578fdfdf32 ARM: integrator: decommission the <mach/irqs.h> header
This header is no longer needed when we boot from the device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16 14:09:52 +02:00
Linus Walleij d7057e1de8 ARM: integrator: delete non-devicetree boot path
The Device Tree boot path now supports everything the ATAG
boot can provide, and the two are equivalent. This deletes
the ATAG boot path from the Integrator/AP and
Integrator/CP platforms to move them on to the future.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16 14:09:49 +02:00
Linus Walleij a67202583f ARM: integrator: get the LM interrupts from DT
The OF/DT boot path needs to get the LM (Logical Module)
IRQs from the device tree for coherency. This augments the
DT syscon node to contain these IRQs and alter the DT LM
code to get them from there.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16 14:09:38 +02:00
Linus Torvalds 21884a83b2 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner:
 "The timer changes contain:

   - posix timer code consolidation and fixes for odd corner cases

   - sched_clock implementation moved from ARM to core code to avoid
     duplication by other architectures

   - alarm timer updates

   - clocksource and clockevents unregistration facilities

   - clocksource/events support for new hardware

   - precise nanoseconds RTC readout (Xen feature)

   - generic support for Xen suspend/resume oddities

   - the usual lot of fixes and cleanups all over the place

  The parts which touch other areas (ARM/XEN) have been coordinated with
  the relevant maintainers.  Though this results in an handful of
  trivial to solve merge conflicts, which we preferred over nasty cross
  tree merge dependencies.

  The patches which have been committed in the last few days are bug
  fixes plus the posix timer lot.  The latter was in akpms queue and
  next for quite some time; they just got forgotten and Frederic
  collected them last minute."

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits)
  hrtimer: Remove unused variable
  hrtimers: Move SMP function call to thread context
  clocksource: Reselect clocksource when watchdog validated high-res capability
  posix-cpu-timers: don't account cpu timer after stopped thread runtime accounting
  posix_timers: fix racy timer delta caching on task exit
  posix-timers: correctly get dying task time sample in posix_cpu_timer_schedule()
  selftests: add basic posix timers selftests
  posix_cpu_timers: consolidate expired timers check
  posix_cpu_timers: consolidate timer list cleanups
  posix_cpu_timer: consolidate expiry time type
  tick: Sanitize broadcast control logic
  tick: Prevent uncontrolled switch to oneshot mode
  tick: Make oneshot broadcast robust vs. CPU offlining
  x86: xen: Sync the CMOS RTC as well as the Xen wallclock
  x86: xen: Sync the wallclock when the system time is set
  timekeeping: Indicate that clock was set in the pvclock gtod notifier
  timekeeping: Pass flags instead of multiple bools to timekeeping_update()
  xen: Remove clock_was_set() call in the resume path
  hrtimers: Support resuming with two or more CPUs online (but stopped)
  timer: Fix jiffies wrap behavior of round_jiffies_common()
  ...
2013-07-06 14:09:38 -07:00
Linus Walleij f55b2b56cd ARM: integrator: basic PCIv3 device tree support
This registers the memory ranges for I/O, non-prefetched and
prefetched memory and configuration space for the PCIv3 bridge
and let us fetch these basic memory resources from the device
tree in the device tree boot path. Remove the stepping stone
platform device. This is an either/or approach - the platform
data path is mutually exclusive to the plain platform data
path and provided addresses from the device tree have to be
correct.

This adds the interrupt-map property to the PCIv3 DTS file
and makes the bridge obtain mappings from the device tree.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-15 22:18:39 +02:00
Stephen Boyd 38ff87f77a sched_clock: Make ARM's sched_clock generic for all architectures
Nothing about the sched_clock implementation in the ARM port is
specific to the architecture. Generalize the code so that other
architectures can use it by selecting GENERIC_SCHED_CLOCK.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[jstultz: Merge minor collisions with other patches in my tree]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2013-06-12 14:02:13 -07:00
Linus Walleij ae9daf2d00 ARM: integrator: move static ioremapping into PCIv3 driver
Try to make this driver self-contained by moving the ioremapping
into the driver.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03 08:04:41 +02:00
Linus Walleij 01ef31053d ARM: integrator: move VGA base assignment
The global vga_base is used for things like getting an early
console on a PCI-based VGA adapter. Move this assignment into
the probe function for the PCI bridge.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03 08:04:40 +02:00
Linus Walleij a5ecbab7d9 ARM: integrator: remap PCIv3 base dynamically
Remove the static mapping for the PCIv3 PCI bridge controller
and do this dynamically when probing instead.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03 08:04:39 +02:00
Linus Walleij 86adc39ffc ARM: integrator: convert PCIv3 bridge to platform device
This converts the PCIv3 driver to a platform device driver, and
registers the device only on the Integrator/AP instead of bailing
out in the initcall if the platform is not correct.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03 08:04:35 +02:00
Russell King 33b9f582c5 Merge branch 'cleanup' into for-linus
Conflicts:
	arch/arm/plat-omap/dmtimer.c
2013-05-02 21:31:29 +01:00
Russell King b269b1709d ARM: cleanup: soc_device_register() error checking
soc_device_register() never returns NULL, it only ever returns an
error pointer or a valid pointer.  Use the right function (IS_ERR())
to check this.

soc_device_to_device() only ever returns &soc_dev->dev, and so can
never return an error or NULL if the pointer passed into it was
valid, so there's no point checking its return.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-02-24 10:42:27 +00:00
Linus Torvalds b274776c54 arm-soc: cleanups
A large number of cleanups, all over the platforms. This is dominated
 largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
 others moving code out of arch/arm into more appropriate subsystems.
 The clocksource and irqchip drivers are now abstracted to the point
 where platforms that are already cleaned up do not need to even specify
 the driver they use, it can all get configured from the device tree
 as we do for normal device drivers. The clocksource changes basically
 touch every single platform in the process.
 
 We further clean up the use of platform specific header files here,
 with the goal of turning more of the platforms over to being
 "multiplatform" enabled, which implies that they cannot expose
 their headers to architecture independent code any more.
 
 It is expected that no functional changes are part of the cleanup.
 The overall reduction in total code lines is mostly the result of
 removing broken and obsolete code.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "A large number of cleanups, all over the platforms.  This is dominated
  largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
  others moving code out of arch/arm into more appropriate subsystems.

  The clocksource and irqchip drivers are now abstracted to the point
  where platforms that are already cleaned up do not need to even
  specify the driver they use, it can all get configured from the device
  tree as we do for normal device drivers.  The clocksource changes
  basically touch every single platform in the process.

  We further clean up the use of platform specific header files here,
  with the goal of turning more of the platforms over to being
  "multiplatform" enabled, which implies that they cannot expose their
  headers to architecture independent code any more.

  It is expected that no functional changes are part of the cleanup.
  The overall reduction in total code lines is mostly the result of
  removing broken and obsolete code."

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits)
  ARM: mvebu: correct gated clock documentation
  ARM: kirkwood: add missing include for nsa310
  ARM: exynos: move exynos4210-combiner to drivers/irqchip
  mfd: db8500-prcmu: update resource passing
  drivers/db8500-cpufreq: delete dangling include
  ARM: at91: remove NEOCORE 926 board
  sunxi: Cleanup the reset code and add meaningful registers defines
  ARM: S3C24XX: header mach/regs-mem.h local
  ARM: S3C24XX: header mach/regs-power.h local
  ARM: S3C24XX: header mach/regs-s3c2412-mem.h local
  ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/
  ARM: S3C24XX: transform s3c2443 subirqs into new structure
  ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs
  ARM: S3C24XX: move s3c2443 irq code to irq.c
  ARM: S3C24XX: transform s3c2416 irqs into new structure
  ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs
  ARM: S3C24XX: move s3c2416 irq init to common irq code
  ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property
  ARM: S3C24XX: Move irq syscore-ops to irq-pm
  clocksource: always define CLOCKSOURCE_OF_DECLARE
  ...
2013-02-21 14:58:40 -08:00
Arnd Bergmann 7822eee1ac Merge branch 'warning-fixes' into next/fixes-non-critical
These are fixes for compiler warnings that for the most
part were introduced during the 3.8 cycle but are otherwise
harmless.

* warning-fixes:
  scripts/sortextable: silence script output
  ARM: s3c: i2c: add platform_device forward declaration
  ARM: mvebu: allow selecting mvebu without Armada XP
  ARM: pick Versatile by default for !MMU
  ARM: integrator: fix build with INTEGRATOR_AP off
  ARM: integrator/versatile: fix NOMMU warnings
  ARM: sa1100: don't warn about mach/ide.h
  ARM: shmobile: fix defconfig warning on CONFIG_USB
  ARM: w90x900: fix legacy assembly syntax
  ARM: samsung: fix assembly syntax for new gas
  ARM: disable virt_to_bus/virt_to_bus almost everywhere

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-02-14 15:05:40 +01:00
Arnd Bergmann 060fd1be0c ARM: integrator/versatile: fix NOMMU warnings
On NOMMU kernels, the io_desc variables are unused
because we don't use the MMU to remap the MMIO
areas.

Marking these variables as __maybe_unused easily
avoids the otherwise harmless warnings like

warning: 'versatile_io_desc' defined but not used

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
2013-02-14 15:04:37 +01:00
Will Deacon ab2a724a2e ARM: integrator: ensure ap_syscon_base is initialised when !CONFIG_MMU
When running on Integrator/AP using atags, ap_syscon_base is initialised
in ->map_io, which isn't called for !MMU platforms.

Instead, initialise the pointer in ->machine_init, as we do when booting
with device-tree.

Cc: stable@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-09 16:28:47 -08:00
Stephen Warren 6bb27d7349 ARM: delete struct sys_timer
Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-12-24 09:36:38 -07:00
Linus Torvalds d027db132b ARM: arm-soc: SoC updates for 3.8
This contains the bulk of new SoC development for this merge window.
 
 Two new platforms have been added, the sunxi platforms (Allwinner A1x
 SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
 series of ARMv7 platforms from them, where the hope is that we can
 keep the platform code generic enough to have them all share one mach
 directory. The new Broadcom platform is contributed by Christian Daudt.
 
 Highbank has grown support for Calxeda's next generation of hardware,
 ECX-2000.
 
 clps711x has seen a lot of cleanup from Alexander Shiyan, and he's also
 taken on maintainership of the platform.
 
 Beyond this there has been a bunch of work from a number of people on
 converting more platforms to IRQ domains, pinctrl conversion, cleanup
 and general feature enablement across most of the active platforms.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC updates from Olof Johansson:
 "This contains the bulk of new SoC development for this merge window.

  Two new platforms have been added, the sunxi platforms (Allwinner A1x
  SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
  series of ARMv7 platforms from them, where the hope is that we can
  keep the platform code generic enough to have them all share one mach
  directory.  The new Broadcom platform is contributed by Christian
  Daudt.

  Highbank has grown support for Calxeda's next generation of hardware,
  ECX-2000.

  clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
  also taken on maintainership of the platform.

  Beyond this there has been a bunch of work from a number of people on
  converting more platforms to IRQ domains, pinctrl conversion, cleanup
  and general feature enablement across most of the active platforms."

Fix up trivial conflicts as per Olof.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
  mfd: vexpress-sysreg: Remove LEDs code
  irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
  clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
  irq: versatile: delete dangling variable
  ARM: sunxi: add missing include for mdelay()
  ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
  ARM: dts: add node for PL330 MDMA1 controller for exynos4
  ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
  ARM: EXYNOS: add UART3 to DEBUG_LL ports
  ARM: S3C24XX: Add clkdev entry for camif-upll clock
  ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
  ARM: sunxi: Add missing sun4i.dtsi file
  pinctrl: samsung: Do not initialise statics to 0
  ARM i.MX6: remove gate_mask from pllv3
  ARM i.MX6: Fix ethernet PLL clocks
  ARM i.MX6: rename PLLs according to datasheet
  ARM i.MX6: Add pwm support
  ARM i.MX51: Add pwm support
  ARM i.MX53: Add pwm support
  ARM: mx5: Replace clk_register_clkdev with clock DT lookup
  ...
2012-12-12 12:05:15 -08:00
Linus Walleij 379df2793e ARM: integrator: push down SC dependencies
This pushes the dependencies on the Integrator/AP system
controller (SC) down into the PCI V3 driver and the
AP-specific board file.

First, the platform data for the PL010 UART is moved into
the integrator_ap.c board file, and the Integrator/CP is
assigned with NULL pdata. This way the callback functions
can reference the dynamically remapped AP syscon address
in both the ATAG and DT boot path, and this remapping
is localized to the board file.

Second the PCIv3 driver is making its own dynamic remapping
of the SC for the few registers it is using. When we
convert the PCIv3 driver over to using device tree having a
dynamically assigned base address will be useful, but we
will have to use the definition from <mach/platform.h> for
now, the only improvement is that it's done dynamically.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-17 19:38:27 +01:00
Linus Walleij 328ba305e3 ARM: integrator: delete static UART1 mapping
The Integrators does not use the UART1 for any debugging
or similar, dynamic mapping should be all that is needed
so delete this static map.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-16 22:26:26 +01:00
Linus Walleij 83feba511e ARM: integrator: remove static AP syscon mapping
This removes the static mapping for the AP system controller for
the device tree case. Fork the static mappings table and move
the system controller to only be statically mapped in the ATAG
boot path.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-16 22:26:12 +01:00
Linus Walleij e67ae6be73 ARM: integrator: hook the AP into the SoC bus
This hooks the Integrator/AP into the SoC bus when booting from
device tree, by mapping the AP controller registers first,
then registering the SoC device, and then populating the device
tree with the SoC device as parent.

Introduce some helpers in the core to provide sysfs files
detailing the use of the SoC ID which will later be reused by
the Integrator/CP patch for the same bus grouping.

Cc: Lee Jones <lee.jones@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-16 22:25:50 +01:00
Linus Walleij 2389d50143 ARM: plat-versatile: move FPGA irq driver to drivers/irqchip
This moves the Versatile FPGA interrupt controller driver, used in
the Integrator/AP, Integrator/CP and some Versatile boards, out
of arch/arm/plat-versatile and down to drivers/irqchip where we
have consensus that such drivers belong. The header file is
consequently moved to <linux/platform_data/irq-versatile-fpga.h>.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-04 18:09:12 +01:00
Linus Walleij da72a66ba8 ARM: integrator: get rid of preallocated irq descriptors
The Integrators were using the .nr_irqs field of the machine
descriptor to pre-allocate a number of descriptors at boot. This
is not right: the irq chip implementations should allocate
their descriptors themselves, and as a result the simple
irqdomain code warns about it.

Get rid of this by just deleting the .nr_irq field from the
machine descriptors but take care: doing so makes the default
implementation hog the first 16 IRQ numbers, so these cannot
be used by the still static IRQ number assignments in the
ATAG boot case. So for these, bump the IRQ numbers to begin
at 64 and upward.

Introduce an offset to offset all IRQ numbers if need be,
though we don't expect to do that again as device tree comes
along.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-27 01:24:29 +02:00
Arnd Bergmann 21c8715f0a ARM: integrator: use __iomem pointers for MMIO, part 2
Due to some interesting merges in the integrator code, not
all users of mmio pointers were converted before, this
fixes all warnings that got introduced as a consequence.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-09 17:27:33 +02:00