Commit Graph

84 Commits

Author SHA1 Message Date
Linus Walleij
5c34a4e89c ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
This replaces:

- "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can
  now be selected directly.

- "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB
  is now selectable by everyone, so we need not declare our
  intent to select it.

When ordering the symbols the following rationale was used:
if the selects were in alphabetical order, I moved select GPIOLIB
to be in alphabetical order, but if the selects were not
maintained in alphabetical order, I just replaced
"select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB".

Cc: Michael Büsch <m@bues.ch>
Cc: arm@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-03 12:18:13 -07:00
Viresh Kumar
117d4f59af cpufreq: sunxi: Use generic platdev driver
The cpufreq-dt-platdev driver supports creation of cpufreq-dt platform
device now, reuse that and remove similar code from platform code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-25 16:18:24 +02:00
Vishnu Patekar
1425ec0f1c ARM: sunxi: Introduce Allwinner for A83T support
Allwinner A83T is octa-core cortex-a7 based SoC.
It's clock control unit and prcm, pinmux are different from previous sun8i
series.
Its processor cores are arragned in two clusters 4 cores each,
similar to A80.

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
[maxime: Removed the clock protection code]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-02-05 07:54:08 +01:00
Masahiro Yamada
e324654294 ARM: use "depends on" for SoC configs instead of "if" after prompt
Many ARM sub-architectures use prompts followed by "if" conditional,
but it is wrong.

Please notice the difference between

    config ARCH_FOO
            bool "Foo SoCs" if ARCH_MULTI_V7

and

    config ARCH_FOO
            bool "Foo SoCs"
            depends on ARCH_MULTI_V7

These two are *not* equivalent!

In the former statement, it is not ARCH_FOO, but its prompt that
depends on ARCH_MULTI_V7.  So, it is completely valid that ARCH_FOO
is selected by another, but ARCH_MULTI_V7 is still disabled. As it is
not unmet dependency, Kconfig never warns.  This is probably not what
you want.

The former should be used only when you need to do so, and you really
understand what you are doing.  (In most cases, it should be wrong!)

For enabling/disabling sub-architectures, the latter is always correct.

As a good side effect, this commit fixes some entries over 80 columns
(mach-imx, mach-integrator, mach-mbevu).

[Arnd: I note that there is not really a bug here, according to
 the discussion that followed, but I can see value in being consistent
 and in making the lines shorter]

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Krzysztof Halasa <khc@piap.pl>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01 22:44:51 +01:00
Masahiro Yamada
75305275a7 ARM: use const and __initconst for smp_operations
These smp_operations structures are not over-written, so add "const"
qualifier and replace __initdata with __initconst.

Also, add "static" where it is possible.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org> # qcom part
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01 22:17:45 +01:00
Linus Torvalds
56e0464980 ARM: SoC platform updates for v4.4
New and/or improved SoC support for this release:
 
  - Marvell Berlin:
    * Enable standard DT-based cpufreq
    * Add CPU hotplug support
  - Freescale:
    * Ethernet init for i.MX7D
    * Suspend/resume support for i.MX6UL
  - Allwinner:
    * Support for R8 chipset (used on NTC's $9 C.H.I.P board)
  - Mediatek:
    * SMP support for some platforms
  - Uniphier:
    * L2 support
    * Cleaned up SMP support, etc.
 
 + A handful of other patches around above functionality, and a few other
 smaller changes.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "New and/or improved SoC support for this release:

  Marvell Berlin:
     - Enable standard DT-based cpufreq
     - Add CPU hotplug support

  Freescale:
     - Ethernet init for i.MX7D
     - Suspend/resume support for i.MX6UL

  Allwinner:
     - Support for R8 chipset (used on NTC's $9 C.H.I.P board)

  Mediatek:
     - SMP support for some platforms

  Uniphier:
     - L2 support
     - Cleaned up SMP support, etc.

  plus a handful of other patches around above functionality, and a few
  other smaller changes"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
  ARM: uniphier: rework SMP operations to use trampoline code
  ARM: uniphier: add outer cache support
  Documentation: EXYNOS: Update bootloader interface on exynos542x
  ARM: mvebu: add broken-idle option
  ARM: orion5x: use mac_pton() helper
  ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
  ARM: sunxi: Add R8 support
  ARM: digicolor: select pinctrl/gpio driver
  arm: berlin: add CPU hotplug support
  arm: berlin: use non-self-cleared reset register to reset cpu
  ARM: mediatek: add smp bringup code
  ARM: mediatek: enable gpt6 on boot up to make arch timer working
  soc: mediatek: Fix random hang up issue while kernel init
  soc: ti: qmss: make acc queue support optional in the driver
  soc: ti: add firmware file name as part of the driver
  Documentation: dt: soc: Add description for knav qmss driver
  ARM: S3C64XX: Use PWM lookup table for mach-smartq
  ARM: S3C64XX: Use PWM lookup table for mach-hmt
  ARM: S3C64XX: Use PWM lookup table for mach-crag6410
  ARM: S3C64XX: Use PWM lookup table for smdk6410
  ...
2015-11-10 14:56:23 -08:00
Maxime Ripard
bef6229f36 ARM: sunxi: Add R8 support
The R8 is a new Allwinner SoC based on the A13. While both are very
similar, there's still a few differences. Introduce a new compatible to
deal with them.

In order to have a consistent naming, instead of mentioning the Allwinner
A series as the machine name, switch to sun4i/sun5i like what is done for
the other families.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-17 18:47:28 +02:00
Marc Zyngier
3722ed2380 clocksource: cosmetic: Drop OF 'dependency' from symbols
Seeing the 'of' characters in a symbol that is being called from
ACPI seems to freak out people. So let's do a bit of pointless
renaming so that these folks do feel at home.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-01 02:18:39 +02:00
Kevin Hilman
d024bae2c4 Allwinner late changes for 4.2
A bunch of defconfig changes, and some patches to make the Allwinner H3 and
 A33 boot properly.
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Merge tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Merge "Allwinner late changes for 4.2" from Maxime Ripard:

Allwinner late changes for 4.2

A bunch of defconfig changes, and some patches to make the Allwinner H3 and
A33 boot properly.

* tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: Enable simplefb in the defconfig
  ARM: Remove deprecated symbol from defconfig files
  ARM: sunxi: Add Machine support for A33
  ARM: sunxi: Introduce Allwinner H3 support
  Documentation: sunxi: Update Allwinner SoC documentation
2015-07-09 15:08:44 -07:00
Vishnu Patekar
159870d241 ARM: sunxi: Add Machine support for A33
Add machine support for the Allwinner A33 quad core cortex-a7 based SoC,
which is similar to the A23 SoC.

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Chen-Yu Tsai <wens@csie.org>
2015-07-05 16:33:55 +02:00
Jens Kuske
14a882df14 ARM: sunxi: Introduce Allwinner H3 support
The Allwinner H3 is a quad-core Cortex-A7-based SoC. It is very similar
to other sun8i family SoCs like the A23.

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-07-05 16:33:55 +02:00
Chen-Yu Tsai
7917d14129 ARM: sun8i: Add SMP support for the Allwinner A23
The A23 is a dual Cortex-A7. Add the logic to use the IPs used to
control the CPU configuration and the CPU power so that we can
bring up secondary CPUs at boot.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-04-27 08:16:33 +02:00
Chen-Yu Tsai
fdc0074c5f ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage
As the sunxi usb clocks all contain a reset controller, it is not
possible to build the sunxi clock driver without RESET_CONTROLLER
enabled. Doing so results in an undefined symbol error:

    drivers/built-in.o: In function `sunxi_gates_clk_setup':
    linux/drivers/clk/sunxi/clk-sunxi.c:1071: undefined reference to
	`reset_controller_register'

This is possible if building a minimal kernel without PHY_SUN4I_USB.

The dependency issue is made visible at compile time instead of
link time by the new A80 mmc clocks, which also use a reset control
itself.

This patch makes ARCH_SUNXI select ARCH_HAS_RESET_CONTROLLER and
RESET_CONTROLLER.

Fixes: 559482d1f9 ARM: sunxi: Split the various SoCs support in Kconfig
Cc: <stable@vger.kernel.org> # 3.16+
Reported-by: Lourens Rozema <ik@lourensrozema.nl>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-02-23 10:44:54 +01:00
Chen-Yu Tsai
f91b7c62e0 ARM: sunxi: Register cpufreq-dt for sun[45678]i
On sun[45678]i, we have one cluster of identical cores sharing a
clock, which is ideal for using cpufreq-dt. Register a platform
device for cpufreq-dt.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-07 11:23:05 +01:00
Hans de Goede
b0f2faa5ca ARM: sunxi: Add "allwinner,sun6i-a31s" to mach-sunxi
So far the A31s is 100% compatible with the A31, still lets do the same
as what we've done for the A13 / A10s and give it its own compatible string,
in case we need to differentiate later.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[Maxime: Removed unusude CPU_OF_DECLARE_METHOD]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-05 09:50:39 +01:00
Emilio López
02c24f7dc2 ARM: sunxi: make sun6i SMP ops static
The sun6i SMP ops are currently not marked as static, as reported by
sparse. Let's mark it as such.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-11-16 11:02:33 +01:00
Chen-Yu Tsai
2f4bc73445 ARM: sunxi: Select ARCH_HAS_RESET_CONTROLLER and RESET_CONTROLLER for sun9i
The A80 SoC has reset controls matching bus clock gates.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-10-20 14:51:31 +02:00
Chen-Yu Tsai
3d4c2f1ced ARM: sunxi: Introduce Allwinner A80 support
The Allwinner A80 is a new Cortex octo-core A7/A15 big.LITTLE SoC.
While it's processor cores and interconnecting bus are new, it
re-uses many peripherals found in earlier Allwinner SoCs.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Andreas Färber <afaerber@suse.de>
2014-10-20 14:51:28 +02:00
Maxime Ripard
17fa6e4ecf ARM: sunxi: Remove sun4i reboot code from mach directory
Now that the restart code has been merged in the watchdog driver, we don't need
the restart code in the mach-sunxi directory anymore.

Remove it entirely.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-09-11 21:01:47 +02:00
Linus Torvalds
b3345d7c57 ARM: SoC platform changes for 3.17
This is the bulk of new SoC enablement and other platform changes for 3.17:
 
 * Samsung S5PV210 has been converted to DT and multiplatform
 * Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms
 * Kirkwood, one of the popular Marvell platforms, is folded into the
   mvebu platform code, removing mach-kirkwood.
 * Hwmod data for TI AM43xx and DRA7 platforms.
 * More additions of Renesas shmobile platform support
 * Removal of plat-samsung contents that can be removed with S5PV210 being
   multiplatform/DT-enabled and the other two old platforms being removed.
 
 New platforms (most with only basic support right now):
 
 * Hisilicon X5HD2 settop box chipset is introduced
 * Mediatek MT6589 (mobile chipset) is introduced
 * Broadcom BCM7xxx settop box chipset is introduced
 
 + as usual a lot other pieces all over the platform code.
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Merge tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "This is the bulk of new SoC enablement and other platform changes for
  3.17:

   - Samsung S5PV210 has been converted to DT and multiplatform
   - Clock drivers and bindings for some of the lower-end i.MX 1/2
     platforms
   - Kirkwood, one of the popular Marvell platforms, is folded into the
     mvebu platform code, removing mach-kirkwood
   - Hwmod data for TI AM43xx and DRA7 platforms
   - More additions of Renesas shmobile platform support
   - Removal of plat-samsung contents that can be removed with S5PV210
     being multiplatform/DT-enabled and the other two old platforms
     being removed

  New platforms (most with only basic support right now):

   - Hisilicon X5HD2 settop box chipset is introduced
   - Mediatek MT6589 (mobile chipset) is introduced
   - Broadcom BCM7xxx settop box chipset is introduced

  + as usual a lot other pieces all over the platform code"

* tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits)
  ARM: hisi: remove smp from machine descriptor
  power: reset: move hisilicon reboot code
  ARM: dts: Add hix5hd2-dkb dts file.
  ARM: debug: Rename Hi3716 to HIX5HD2
  ARM: hisi: enable hix5hd2 SoC
  ARM: hisi: add ARCH_HISI
  MAINTAINERS: add entry for Broadcom ARM STB architecture
  ARM: brcmstb: select GISB arbiter and interrupt drivers
  ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
  ARM: configs: enable SMP in bcm_defconfig
  ARM: add SMP support for Broadcom mobile SoCs
  Documentation: arm: misc updates to Marvell EBU SoC status
  Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC
  ARM: mvebu: fix build without platforms selected
  ARM: mvebu: add cpuidle support for Armada 38x
  ARM: mvebu: add cpuidle support for Armada 370
  cpuidle: mvebu: add Armada 38x support
  cpuidle: mvebu: add Armada 370 support
  cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7
  ARM: mvebu: export the SCU address
  ...
2014-08-08 11:14:29 -07:00
Linus Torvalds
e0b8b78651 This is the bulk pin control changes for the v3.17 merge
development cycle:
 
 - Get rid of the .disable() callback from the driver callback
   vtable. This callback was abused and counterintuitive since
   a pin or group of pins can be said to always be in some
   setting, and never really disabled. We now only enable a
   certain muxing, and move between some certain muxings, we
   never "disable" a mux setting.
 
 - Some janitorial moving the MSM, Samsung and Nomadik and
   drivers to their own subdirectories for a clearer view in
   the subsystem. This will continue.
 
 - Kill off the use of the return value from gpiochip_remove(),
   this will be done in parallel in the GPIO subsystem and
   hopefully not trigger too many unchecked return value
   warnings before we get rid of this altogether.
 
 - A huge set of changes and improvements to the Allwinner
   sunxi drivers especially for their latest A23 and A31 SoCs,
   and some ground work for the new sun8i platform family.
 
 - A large set of Rockchip driver improvements adding support
   for the RK3288 SoC.
 
 - Advances in migration of older Freescale platforms to pin
   control, especially i.MX1.
 
 - Samsung and Exynos improvements.
 
 - Support for the Qualcomm MSM8960 SoC.
 
 - Use the gpiolib irqchip helpers for the ST SPEAr and
   Intel Baytrail drivers.
 
 - A bunch of nice janitorial work done with cppcheck.
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Merge tag 'pinctrl-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl updates from Linus Walleij:
 "This is the bulk pin control changes for the v3.17 merge development
  cycle:

   - get rid of the .disable() callback from the driver callback vtable.

     This callback was abused and counterintuitive since a pin or group
     of pins can be said to always be in some setting, and never really
     disabled.  We now only enable a certain muxing, and move between
     some certain muxings, we never "disable" a mux setting

   - some janitorial moving the MSM, Samsung and Nomadik and drivers to
     their own subdirectories for a clearer view in the subsystem.  This
     will continue

   - kill off the use of the return value from gpiochip_remove(), this
     will be done in parallel in the GPIO subsystem and hopefully not
     trigger too many unchecked return value warnings before we get rid
     of this altogether

   - a huge set of changes and improvements to the Allwinner sunxi
     drivers especially for their latest A23 and A31 SoCs, and some
     ground work for the new sun8i platform family

   - a large set of Rockchip driver improvements adding support for the
     RK3288 SoC

   - advances in migration of older Freescale platforms to pin control,
     especially i.MX1

   - Samsung and Exynos improvements

   - support for the Qualcomm MSM8960 SoC

   - use the gpiolib irqchip helpers for the ST SPEAr and Intel Baytrail
     drivers

   - a bunch of nice janitorial work done with cppcheck"

* tag 'pinctrl-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (61 commits)
  pinctrl: baytrail: Convert to use gpiolib irqchip
  pinctrl: sunxi: number gpio ranges starting from 0
  pinctrl: sunxi: use gpiolib API to mark a GPIO used as an IRQ
  pinctrl: rockchip: add drive-strength control for rk3288
  pinctrl: rockchip: add separate type for rk3288
  pinctrl: rockchip: set is_generic in pinconf_ops
  pinctrl: msm: drop negativity check on unsigned value
  pinctrl: remove all usage of gpio_remove ret val in driver/pinctl
  pinctrl: qcom: Make muxing of gpio function explicit
  pinctrl: nomadik: move all Nomadik drivers to subdir
  pinctrl: samsung: Group all drivers in a sub-dir
  sh-pfc: sh73a0: Introduce the use of devm_regulator_register
  sh-pfc: Add renesas,pfc-r8a7791 to binding documentation
  pinctrl: msm: move all qualcomm drivers to subdir
  pinctrl: msm: Add msm8960 definitions
  pinctrl: samsung: Allow pin value to be initialized using pinfunc
  pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes
  pinctrl: exynos: Consolidate irq_chips of GPIO and WKUP EINTs
  pinctrl: samsung: Handle GPIO request and free using pinctrl helpers
  pinctrl: samsung: Decouple direction setting from pinctrl
  ...
2014-08-07 17:20:53 -07:00
Olof Johansson
f37ac9e5a4 exynos cpuidle update for v3.17
- add callbacks exynos_suspend() and exynos_powered_up()
   for support cpuidle through mcpm
 - skip exynos_cpuidle for exynos5420 because is uses
   cpuidle-big-liggle generic cpuidle driver
 - add generic functions to calculate cpu number is used
   for pmu and this is required for exynos5420 multi-cluster
 - add of_device_id structure for big.LITTLE cpuidle and
   add "samsung,exynos5420" compatible string for exynos5420
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Merge tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Merge "Samsung exynos cpuidle update for v3.17" from Kukjin Kim:

- add callbacks exynos_suspend() and exynos_powered_up()
  for support cpuidle through mcpm
- skip exynos_cpuidle for exynos5420 because is uses
  cpuidle-big-liggle generic cpuidle driver
- add generic functions to calculate cpu number is used
  for pmu and this is required for exynos5420 multi-cluster
- add of_device_id structure for big.LITTLE cpuidle and
  add "samsung,exynos5420" compatible string for exynos5420

* tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: populate suspend and powered_up callbacks for mcpm
  ARM: EXYNOS: do not allow cpuidle registration for exynos5420
  cpuidle: big.LITTLE: init driver for exynos5420
  cpuidle: big.LITTLE: Add ARCH_EXYNOS entry in config
  ARM: EXYNOS: add generic function to calculate cpu number
  cpuidle: big.LITTLE: add of_device_id structure
  + Linux 3.16-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 15:03:08 -07:00
Maxime Ripard
d9ff081d91 pinctrl: sunxi: Remove PINCTRL_SUNXI
The PINCTRL_SUNXI configuration was kept only to deal with the introduction of
per-machine symbols and the various pintrl drivers through different tree.

Now that it's not useful anymore, we can just remove it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-11 14:08:29 +02:00
Chen-Yu Tsai
5ba1657ecd ARM: sunxi: select MFD_SUN6I_PRCM when sun8i arch support is enabled
Select the MFD_SUN6I_PRCM option when sun8i arch is enabled in order to
get the PRCM (Power/Reset/Clock Management) related drivers compiled.

Also select ARCH_HAS_RESET_CONTROLLER and RESET_CONTROLLER to make sure
the reset controller drivers are compiled.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-07 11:00:06 +02:00
Maxime Ripard
d767af5e66 ARM: sunxi: Reintroduce the restart code for A10/A20 SoCs
This partly reverts commits 553600502b (ARM: sunxi: Remove reset code from
the platform) and 5e669ec583 (ARM: sunxi: Remove init_machine callback) for
the sun4i, sun5i and sun7i families.

This is needed because the watchdog counterpart of these commits was dropped,
and didn't make it into 3.16. In order to still be able to reboot the board, we
need to reintroduce that code. Of course, the long term view is still to get
rid of that code in mach-sunxi.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-04 21:50:10 -07:00
Chen-Yu Tsai
ac84b79fbd ARM: sunxi: Introduce Allwinner A23 support
The Allwinner A23 is a dual-core Cortex-A7-based SoC. It re-uses most of
the IPs found in previous SoCs, notably the A31.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-06-23 17:59:57 +02:00
Arnd Bergmann
e58cf0193c ARM: sunxi: allow building without reset controller
The sunxi reset controller code is only used with sun6i (a31).
After the platform has been split up into per-soc options, it's
now possible to build it without the reset controller code, so
the base platform init must not call into the reset driver
if that is turned off at compile time.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-26 21:27:22 +02:00
Maxime Ripard
5e669ec583 ARM: sunxi: Remove init_machine callback
The init_machine hook is now at its default value. We can remove it.

Even though the sun4i and sun7i machines are nothing more than generic machines
now, leave them in so that we won't have to add them back if needed, and so
that the machine is still displayed in /proc/cpuinfo.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-23 10:39:10 +02:00
Maxime Ripard
553600502b ARM: sunxi: Remove reset code from the platform
Now that reset is handled either by the watchdog driver for the sun4i, sun5i
and sun7i, and by a driver of its own for sun6i, we can remove it from the
platform code.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-05-23 10:37:44 +02:00
Maxime Ripard
27a3cf055f ARM: sun6i: Retire the smp field in A31 machine
Now that we can rely on the enable-method, remove the smp field declaration
from A31 machine.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:42:05 +02:00
Maxime Ripard
cd4b2b9bc2 ARM: sun6i: Use CPU_METHOD_OF_DECLARE
CPU_METHOD_OF_DECLARE allows to bind the smp_ops to a set of cpus through the
enable-method property, instead of relying on the machine to define it. Switch
to it to get closer to an empty machine.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:42:00 +02:00
Boris BREZILLON
324da938cb ARM: sunxi: select MFD_SUN6I_PRCM when sun6i arch support is enabled
Select the MFD_SUN6I_PRCM option when sun6i arch is enabled in order to get
the PRCM (Power/Reset/Clock Management) related drivers compiled.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-15 17:30:07 +02:00
Maxime Ripard
559482d1f9 ARM: sunxi: Split the various SoCs support in Kconfig
This will allow to better isolate various options, and reduce the overall
kernel size if we're interested in only one of the SoCs.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 20:23:00 -05:00
Linus Torvalds
ff050ad12c ARM: SoC specific changes
Lots of changes specific to one of the SoC families. Some that
 stick out are:
 
 * mach-qcom gains new features, most importantly SMP support for
   the newer chips (Stephen Boyd, Rohit Vaswani)
 * mvebu gains support for three new SoCs: Armada 375, 380 and 385
   (Thomas Petazzoni and Free-electrons team)
 * SMP support for Rockchips (Heiko Stübner)
 * Lots of i.MX changes (Shawn Guo)
 * Added support for BCM5301x SoC (Hauke Mehrtens)
 * Multiplatform support for Marvell Kirkwood and Dove
   (Andrew Lunn and Sebastian Hesselbarth doing the final part
   of a long journey)
 * Unify davinci platforms and remove obsolete ones (Sekhar Nori,
   Arnd Bergmann)
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Merge tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "Lots of changes specific to one of the SoC families.  Some that stick
  out are:

   - mach-qcom gains new features, most importantly SMP support for the
     newer chips (Stephen Boyd, Rohit Vaswani)
   - mvebu gains support for three new SoCs: Armada 375, 380 and 385
     (Thomas Petazzoni and Free-electrons team)
   - SMP support for Rockchips (Heiko Stübner)
   - Lots of i.MX changes (Shawn Guo)
   - Added support for BCM5301x SoC (Hauke Mehrtens)
   - Multiplatform support for Marvell Kirkwood and Dove (Andrew Lunn
     and Sebastian Hesselbarth doing the final part of a long journey)
   - Unify davinci platforms and remove obsolete ones (Sekhar Nori, Arnd
     Bergmann)"

* tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (126 commits)
  ARM: sunxi: Select HAVE_ARM_ARCH_TIMER
  ARM: cache-tauros2: remove ARMv6 code
  ARM: mvebu: don't select CONFIG_NEON
  ARM: davinci: fix DT booting with default defconfig
  ARM: configs: bcm_defconfig: enable bcm590xx regulator support
  ARM: davinci: remove tnetv107x support
  MAINTAINERS: Update ARM STi maintainers
  ARM: restrict BCM_KONA_UART to ARCH_BCM_MOBILE
  ARM: bcm21664: Add board support.
  ARM: sunxi: Add the new watchog compatibles to the reboot code
  ARM: enable ARM_HAS_SG_CHAIN for multiplatform
  ARM: davinci: remove da8xx_omapl_defconfig
  ARM: davinci: da8xx: fix multiple watchdog device registration
  ARM: davinci: add da8xx specific configs to davinci_all_defconfig
  ARM: davinci: enable da8xx build concurrently with older devices
  ARM: BCM5301X: workaround suppress fault
  ARM: BCM5301X: add early debugging support
  ARM: BCM5301X: initial support for the BCM5301X/BCM470X SoCs with ARM CPU
  ARM: mach-bcm: Remove GENERIC_TIME
  ARM: shmobile: APMU: Fix warnings due to improper printk formats
  ...
2014-04-05 14:19:54 -07:00
Linus Torvalds
dfc25e4503 ARM: SoC: cleanups for 3.15
These cleanup patches are mainly move stuff around and should all
 be harmless. They are mainly split out so that other branches can
 be based on top to avoid conflicts.
 
 Notable changes are:
 
 * We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no
   longer used. (Uwe Kleine-König)
 * The Qualcomm MSM platform is split out into legacy mach-msm and
   new-style mach-qcom, to allow easier maintainance of the new
   hardware support without regressions. (Kumar Gala)
 * A rework of some of the Kconfig logic to simplify multiplatform
   support (Rob Herring)
 * Samsung Exynos gets closer to supporting multiplatform (Sachin
   Kamat and others)
 * mach-bcm3528 gets merged into mach-bcm (Stephen Warren)
 * at91 gains some common clock framework support (Alexandre Belloni,
   Jean-Jacques Hiblot and other French people).
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Merge tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "These cleanup patches are mainly move stuff around and should all be
  harmless.  They are mainly split out so that other branches can be
  based on top to avoid conflicts.

  Notable changes are:

   - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no
     longer used (Uwe Kleine-König)
   - The Qualcomm MSM platform is split out into legacy mach-msm and
     new-style mach-qcom, to allow easier maintainance of the new
     hardware support without regressions (Kumar Gala)
   - A rework of some of the Kconfig logic to simplify multiplatform
     support (Rob Herring)
   - Samsung Exynos gets closer to supporting multiplatform (Sachin
     Kamat and others)
   - mach-bcm3528 gets merged into mach-bcm (Stephen Warren)
   - at91 gains some common clock framework support (Alexandre Belloni,
     Jean-Jacques Hiblot and other French people)"

* tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits)
  ARM: hisi: select HAVE_ARM_SCU only for SMP
  ARM: efm32: allow uncompress debug output
  ARM: prima2: build reset code standalone
  ARM: at91: add PWM clock
  ARM: at91: move sam9261 SoC to common clk
  ARM: at91: prepare common clk transition for sam9261 SoC
  ARM: at91: updated the at91_dt_defconfig with support for the ADS7846
  ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek
  ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs
  ARM: at91: dt: Add at91sam9261 dt SoC support
  ARM: at91: switch sam9rl to common clock framework
  ARM: at91/dt: define main clk frequency of at91sam9rlek
  ARM: at91/dt: define at91sam9rl clocks
  ARM: at91: prepare common clk transition for sam9rl SoCs
  ARM: at91: prepare sam9 dt boards transition to common clk
  ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek
  ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs
  ARM: at91: Add at91sam9rl DT SoC support
  ARM: at91: prepare at91sam9rl DT transition
  ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig
  ...
2014-04-05 13:51:19 -07:00
Maxime Ripard
9233087dc4 ARM: sunxi: Select HAVE_ARM_ARCH_TIMER
In order for the architected timers support to be enabled in the kernel, this
option has to be enabled. Otherwise, the architected timers driver won't be
compiled in, and we will not get to use them.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-03-27 14:26:27 -07:00
Arnd Bergmann
1146b60004 ARM: sunxi: fix build for THUMB2_KERNEL
Building an SMP kernel for the sunxi platform with THUMB2 instructions
fails with this error at the moment:

headsmp.S:7: Error: Thumb encoding does not support an immediate here -- `msr cpsr_fsxc,#0xd3'

Since the generic secondary_startup function already does
the same thing in a safe way, we can just drop the private
sunxi implementation and jump straight to secondary_startup.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-22 01:04:28 +01:00
Arnd Bergmann
780d2bf3d0 Allwinner core additions for 3.15
Just a minor commit to adjust the restart code to take into account the new
 compatibles
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Merge tag 'sunxi-core-for-3.15' of https://github.com/mripard/linux into next/soc

Merge "Allwinner core additions for 3.15" from Maxime Ripard:

Just a minor commit to adjust the restart code to take into account the new
compatibles

* tag 'sunxi-core-for-3.15' of https://github.com/mripard/linux:
  ARM: sunxi: Add the new watchog compatibles to the reboot code

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17 14:41:54 +01:00
Maxime Ripard
8db21ad469 ARM: sunxi: Add the new watchog compatibles to the reboot code
Now that the watchdog driver has new compatibles, we need to support them in
the machine reboot code.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-13 11:46:20 +01:00
Rob Herring
90bc8ac77d ARM: select HAVE_SMP for V7 multi-platform
All V7 platforms can run SMP kernels, so make CONFIG_SMP visible for V7
multi-platform builds.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-02-19 16:43:27 -06:00
Rob Herring
ddb902cc34 ARM: centralize common multi-platform kconfig options
Multi-platform requires various kconfig options to be selected, so
platforms don't need to select them individually.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-02-19 16:38:18 -06:00
Linus Torvalds
dfd10e7ae6 ARM: SoC platform changes for 3.14
New core SoC-specific changes.
 
 New platforms:
 * Introduction of a vendor, Hisilicon, and one of their SoCs with some
   random numerical product name.
 * Introduction of EFM32, embedded platform from Silicon Labs (ARMv7m, i.e. !MMU).
 * Marvell Berlin series of SoCs, which include the one in Chromecast.
 * MOXA platform support, ARM9-based platform used mostly in industrial products
 * Support for Freescale's i.MX50 SoC.
 
 Other work:
 * Renesas work for new platforms and drivers, and conversion over to
   more multiplatform-friendly device registration schemes.
 * SMP support for Allwinner sunxi platforms.
 * ... plus a bunch of other stuff across various platforms.
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "New core SoC-specific changes.

  New platforms:
   * Introduction of a vendor, Hisilicon, and one of their SoCs with
     some random numerical product name.
   * Introduction of EFM32, embedded platform from Silicon Labs (ARMv7m,
     i.e. !MMU).
   * Marvell Berlin series of SoCs, which include the one in Chromecast.
   * MOXA platform support, ARM9-based platform used mostly in
     industrial products
   * Support for Freescale's i.MX50 SoC.

  Other work:
   * Renesas work for new platforms and drivers, and conversion over to
     more multiplatform-friendly device registration schemes.
   * SMP support for Allwinner sunxi platforms.
   * ... plus a bunch of other stuff across various platforms"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (201 commits)
  ARM: tegra: fix tegra_powergate_sequence_power_up() inline
  ARM: msm_defconfig: Update for multi-platform
  ARM: msm: Move MSM's DT based hardware to multi-platform support
  ARM: msm: Only build timer.c if required
  ARM: msm: Only build clock.c on proc_comm based platforms
  ARM: ux500: Enable system suspend with WFI support
  ARM: ux500: turn on PRINTK_TIME in u8500_defconfig
  ARM: shmobile: r8a7790: Fix I2C controller names
  ARM: msm: Simplify ARCH_MSM_DT config
  ARM: msm: Add support for MSM8974 SoC
  ARM: sunxi: select ARM_PSCI
  MAINTAINERS: Update Allwinner sunXi maintainer files
  ARM: sunxi: Select RESET_CONTROLLER
  ARM: imx: improve the comment of CCM lpm SW workaround
  ARM: imx: improve status check of clock gate
  ARM: imx: add necessary interface for pfd
  ARM: imx_v6_v7_defconfig: Select CONFIG_REGULATOR_PFUZE100
  ARM: imx_v6_v7_defconfig: Select MX35 and MX50 device tree support
  ARM: imx: Add cpu frequency scaling support
  ARM i.MX35: Add devicetree support.
  ...
2014-01-23 18:40:49 -08:00
Zalan Blenessy
75cac6abe7 ARM: sunxi: select ARM_PSCI
On Allwinner sun7i (A20) SoCs, the SMP operations are implemented in
u-boot, and exposed to the kernel through PSCI.

We thus need to enable PSCI support for Allwinner SoCs so that the
kernel uses it to bring up the additionnal cores.

Signed-off-by: Signed-off-by: Zalan Blenessy <zalan.blenessy@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-01-01 23:58:17 +01:00
Maxime Ripard
070330d3d4 ARM: sunxi: Select RESET_CONTROLLER
The current code selects ARCH_HAS_RESET_CONTROLLER, that enables the
RESET_CONTROLLER option by default, but doesn't select it, so a configuration
might unselect it, leading to compilation error.

Explictly select RESET_CONTROLLER so that we can't have this breakage anymore.

Reported-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-01-01 23:55:58 +01:00
Maxime Ripard
73346794b4 ARM: sun6i: Add SMP support for the Allwinner A31
The A31 is a quad Cortex-A7. Add the logic to use the IPs used to
control the CPU configuration and the CPU power so that we can bring up
secondary CPUs at boot.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2013-12-16 21:33:41 +01:00
Maxime Ripard
67905540e8 clocksource: Add Allwinner SoCs HS timers driver
Most of the Allwinner SoCs (at this time, all but the A10) also have a
High Speed timers that are not using the 24MHz oscillator as a source
but rather the AHB clock running much faster.

The IP is slightly different between the A10s/A13 and the one used in
the A20/A31, since the latter have 4 timers available, while the former
have only 2 of them.

[dlezcano] : Fixed conflict with b788beda "Order Kconfig options
		alphabetically"

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2013-12-11 11:37:50 +01:00
Maxime Ripard
751b2ac4a2 ARM: sunxi: Register the A31 reset IP in init_time
The A31 has a reset IP that maintains a few other IPs in reset by
default. Among these IPs are the UARTs, and most notably the timers. We
thus need to register the reset driver before initializing the timers so
that the reset timer can use the reset framework.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
2013-11-22 21:30:07 +01:00
Maxime Ripard
a85d80b8ee ARM: sunxi: Select ARCH_HAS_RESET_CONTROLLER
The A31 has a reset controller, and we have to select this option to
have access to the reset controller framework.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
2013-11-22 21:23:26 +01:00
Olof Johansson
0d74578b7d ARM: sunxi: remove .init_time hooks
The machine entries were split up, but the cleanup to remove .init_time
removed the function that the new/split entries refer to. Remove them
since they are no longer needed.

Cc: Maxime Ripard <mripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:19:45 -07:00
Olof Johansson
e086df92e2 Allwinner sunXi SoCs machine additions for 3.13
Nothing outstanding here, mostly some documentation cleanup, and the split of
 the previous generic machine declaration into three different machines to
 handle the sun4i/sun5i, sun6i and sun7i separately.
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Merge tag 'sunxi-core-for-3.13' of https://github.com/mripard/linux into next/soc

From Maxime Ripard:
Allwinner sunXi SoCs machine additions for 3.13

Nothing outstanding here, mostly some documentation cleanup, and the split of
the previous generic machine declaration into three different machines to
handle the sun4i/sun5i, sun6i and sun7i separately.

* tag 'sunxi-core-for-3.13' of https://github.com/mripard/linux:
  Documentation: dt: Remove clock gates IDs list for Allwinner SoCs
  Documentation: dt: Remove interrupt sources list for Allwinner SoCs
  Documentation: sunxi: Update Allwinner SoC documentation
  Documentation: sunxi: Update A13 user manual dead link
  ARM: sunxi: Order Kconfig options alphabetically
  ARM: sunxi: Simplify restart setup code
  ARM: sunxi: Split out the DT machines for sun6i and sun7i

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:19:38 -07:00