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Commit Graph

18 Commits

Author SHA1 Message Date
Romain Perier
f54b91fdfa ARM: rockchip: Add cpu hotplug support for RK3XXX SoCs
Adds ability to shutdown all CPUs except the first one
(since it might be special for a lot of platforms).
It is now possible to use kexec which requires such a feature.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-07-23 11:42:29 +02:00
Heiko Stuebner
09af6a59fb ARM: rockchip: select ARMv7 compiler flags for platsmp.o
When compiling for multiplatform for both ARMv6 and ARMv7, the default
compiler flags are for ARMv6, and the following cpu-hotplug change will
fail with:
 /tmp/ccSFxfmI.s:68: Error: selected processor does not support ARM mode `isb '
 /tmp/ccSFxfmI.s:74: Error: selected processor does not support ARM mode `isb '
 /tmp/ccSFxfmI.s:75: Error: selected processor does not support ARM mode `dsb '

Fix this in a similar manner as in commit 9f0affcf3e "ARM: mvebu: Fix pmsu
compilation when ARMv6 is selected", by specifying ARMv7 flags for platsmp.o.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-07-23 11:42:26 +02:00
Linus Torvalds
eb3d3ec567 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next
Pull ARM updates from Russell King:

 - Major clean-up of the L2 cache support code.  The existing mess was
   becoming rather unmaintainable through all the additions that others
   have done over time.  This turns it into a much nicer structure, and
   implements a few performance improvements as well.

 - Clean up some of the CP15 control register tweaks for alignment
   support, moving some code and data into alignment.c

 - DMA properties for ARM, from Santosh and reviewed by DT people.  This
   adds DT properties to specify bus translations we can't discover
   automatically, and to indicate whether devices are coherent.

 - Hibernation support for ARM

 - Make ftrace work with read-only text in modules

 - add suspend support for PJ4B CPUs

 - rework interrupt masking for undefined instruction handling, which
   allows us to enable interrupts earlier in the handling of these
   exceptions.

 - support for big endian page tables

 - fix stacktrace support to exclude stacktrace functions from the
   trace, and add save_stack_trace_regs() implementation so that kprobes
   can record stack traces.

 - Add support for the Cortex-A17 CPU.

 - Remove last vestiges of ARM710 support.

 - Removal of ARM "meminfo" structure, finally converting us solely to
   memblock to handle the early memory initialisation.

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits)
  ARM: ensure C page table setup code follows assembly code (part II)
  ARM: ensure C page table setup code follows assembly code
  ARM: consolidate last remaining open-coded alignment trap enable
  ARM: remove global cr_no_alignment
  ARM: remove CPU_CP15 conditional from alignment.c
  ARM: remove unused adjust_cr() function
  ARM: move "noalign" command line option to alignment.c
  ARM: provide common method to clear bits in CPU control register
  ARM: 8025/1: Get rid of meminfo
  ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type
  ARM: 8066/1: correction for ARM patch 8031/2
  ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
  ARM: 8065/1: remove last use of CONFIG_CPU_ARM710
  ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction
  ARM: 8047/1: rwsem: use asm-generic rwsem implementation
  ARM: l2c: trial at enabling some Cortex-A9 optimisations
  ARM: l2c: add warnings for stuff modifying aux_ctrl register values
  ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
  ARM: l2c: remove old .set_debug method
  ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this
  ...
2014-06-05 15:57:04 -07:00
Russell King
2a2d2fff1d ARM: l2c: rockchip: convert to generic l2c OF initialisation
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead.  This also allows us to eliminate the
.init_machine function as this becomes the same as the generic version.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:00 +01:00
Heiko Stübner
26ab69cb4c ARM: rockchip: convert smp bringup to CPU_METHOD_OF_DECLARE
With the newly introduced CPU_METHOD_OF_DECLARE is not necessary anymore
to reference the relevant smp_ops in the board file, but instead it can
simply be set by the enable-method property of the cpu nodes.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-26 11:15:53 -07:00
Russell King
d453ef752c ARM: l2c: remove unnecessary UL-suffix to mask values
They're u32, they're not unsigned long.  The UL suffix is not required
here.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-22 16:38:43 +01:00
Heiko Stuebner
5c4348c1f9 ARM: rockchip: fix copy'n'paste error in smp error messages
The error emitted when mapping the pmu failed, wrongly mentions the sram.

Reported-by: Kent Borg <kentborg@borg.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-04-15 11:17:00 +02:00
Olof Johansson
1760e4f855 i.MX SoC changes for 3.15:
- Support suspend from ocram (DDR IO floating) for imx6 platforms
  - Add cpuidle support for imx6sl
  - Sparse warning fixes for imx6sl and vf610 clock code
  - Remove PWM platform code
  - Support ptp and rmii clock from pad
  - Support WEIM CS GPR configuration
  - Random cleanups and defconfig updates
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Merge tag 'imx-soc-3.15' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc

i.MX SoC changes for 3.15 from Shawn Guo:
 - Support suspend from ocram (DDR IO floating) for imx6 platforms
 - Add cpuidle support for imx6sl
 - Sparse warning fixes for imx6sl and vf610 clock code
 - Remove PWM platform code
 - Support ptp and rmii clock from pad
 - Support WEIM CS GPR configuration
 - Random cleanups and defconfig updates

* tag 'imx-soc-3.15' of git://git.linaro.org/people/shawnguo/linux-2.6: (373 commits)
  ARM: imx6: drop .text.head section annotation from headsmp.S
  ARM: imx6: build suspend-imx6.o with CONFIG_SOC_IMX6
  ARM: imx6: rename pm-imx6q.c to pm-imx6.c
  ARM: imx6: introduce CONFIG_SOC_IMX6 for i.MX6 common stuff
  ARM: imx6: do not call imx6q_suspend_init() with !CONFIG_SUSPEND
  ARM: imx6: call suspend_set_ops() from suspend routine
  ARM: imx6: build headsmp.o only on CONFIG_SMP
  ARM: imx6: move v7_cpu_resume() into suspend-imx6.S
  ARM i.MX6q: Mark VPU and IPU AXI transfers as cacheable, increase IPU priority
  ARM: imx6q: Add GPR6 and GPR7 register definitions for iomuxc gpr
  bus: imx-weim: support CS GPR configuration
  ARM: mach-imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX2_WDT from SOC_IMX53
  ARM: imx_v6_v7_defconfig: Select CONFIG_DEBUG_FS
  ARM: mach-imx: Select CONFIG_SRAM at ARCH_MXC level
  ARM: imx: add speed grading check for i.mx6 soc
  ARM: imx: avoid calling clk APIs in idle thread which may cause schedule
  ARM: imx6q: support ptp and rmii clock from pad
  ARM: imx6q: remove unneeded clk lookups
  ARM: imx_v6_v7_defconfig: Select CONFIG_MMC_UNSAFE_RESUME
  ARM: imx_v4_v5_defconfig: Select CONFIG_MMC_UNSAFE_RESUME
  ...
2014-03-09 12:03:18 -07:00
Heiko Stuebner
a7a2b3118b ARM: rockchip: add smp bringup code
This adds the necessary smp-operations and startup code to use
additional cores on Rockchip SoCs.

We currently hog the power management unit in the smp code, as it is
necessary to control the power to the cpu core and nothing else is
currently using it, so a generic implementation can be done later.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Ulrich Prinz <ulrich.prinz@googlemail.com>
2014-03-01 17:21:57 +01:00
Heiko Stuebner
f6f70cf707 ARM: rockchip: add snoop-control-unit
This adds the device-node and config select to enable the
scu in all Rockchip Cortex-A9 SoCs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Ulrich Prinz <ulrich.prinz@googlemail.com>
2014-03-01 16:03:40 +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
d5aabbcaee ARM: SoC board updates for 3.13
Board-related updates. This branch is getting smaller and smaller, which is
 the whole idea so that's reassuring.
 
 Right now by far most of the code is related to shmobile updates, and
 they are now switching over to removal of board code and migration to
 multiplatform, so we'll see their board code base shrink in the near
 future too, I hope.
 
 In addition to that is some defconfig updates, some display updates for OMAP
 and a bit of new board support for Rockchip boards.
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Merge tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC board updates from Olof Johansson:
 "Board-related updates.  This branch is getting smaller and smaller,
  which is the whole idea so that's reassuring.

  Right now by far most of the code is related to shmobile updates, and
  they are now switching over to removal of board code and migration to
  multiplatform, so we'll see their board code base shrink in the near
  future too, I hope.

  In addition to that is some defconfig updates, some display updates
  for OMAP and a bit of new board support for Rockchip boards"

* tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (56 commits)
  ARM: rockchip: add support for rk3188 and Radxa Rock board
  ARM: rockchip: add dts for bqcurie2 tablet
  ARM: rockchip: enable arm-global-timer
  ARM: rockchip: move shared dt properties to common source file
  ARM: OMAP2+: display: Create omap_vout device inside omap_display_init
  ARM: OMAP2+: display: Create omapvrfb and omapfb devices inside omap_display_init
  ARM: OMAP2+: display: Create omapdrm device inside omap_display_init
  ARM: OMAP2+: drm: Don't build device for DMM
  ARM: tegra: defconfig updates
  RX-51: Add support for OMAP3 ROM Random Number Generator
  ARM: OMAP3: RX-51: ARM errata 430973 workaround
  ARM: OMAP3: Add secure function omap_smc3() which calling instruction smc #1
  ARM: shmobile: marzen: enable INTC IRQ
  ARM: shmobile: bockw: add SMSC support on reference
  ARM: shmobile: Use SMP on Koelsch
  ARM: shmobile: Remove KZM9D reference DTS
  ARM: shmobile: Let KZM9D multiplatform boot with KZM9D DTB
  ARM: shmobile: Remove non-multiplatform KZM9D reference support
  ARM: shmobile: Use KZM9D without reference for multiplatform
  ARM: shmobile: Sync KZM9D DTS with KZM9D reference DTS
  ...
2013-11-11 16:57:16 +09:00
Linus Torvalds
21604cdcdc ARM: SoC cleanups for 3.13
This branch contains code cleanups, moves and removals for 3.13.
 
 Qualcomm msm targets had a bunch of code removal for legacy non-DT
 platforms. Nomadik saw more device tree conversions and cleanup of old
 code. Tegra has some code refactoring, etc.
 
 One longish patch series from Sebastian Hasselbarth changes the init_time
 hooks and tries to use a generic implementation for most platforms,
 since they were all doing more or less the same things.
 
 Finally the "shark" platform is removed in this release. It's been
 abandoned for a while and nobody seems to care enough to keep it
 around. If someone comes along and wants to resurrect it, the removal
 can easily be reverted and code brought back.
 
 Beyond this, mostly a bunch of removals of stale content across the
 board, etc.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This branch contains code cleanups, moves and removals for 3.13.

  Qualcomm msm targets had a bunch of code removal for legacy non-DT
  platforms.  Nomadik saw more device tree conversions and cleanup of
  old code.  Tegra has some code refactoring, etc.

  One longish patch series from Sebastian Hasselbarth changes the
  init_time hooks and tries to use a generic implementation for most
  platforms, since they were all doing more or less the same things.

  Finally the "shark" platform is removed in this release.  It's been
  abandoned for a while and nobody seems to care enough to keep it
  around.  If someone comes along and wants to resurrect it, the removal
  can easily be reverted and code brought back.

  Beyond this, mostly a bunch of removals of stale content across the
  board, etc"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (79 commits)
  ARM: gemini: convert to GENERIC_CLOCKEVENTS
  ARM: EXYNOS: remove CONFIG_MACH_EXYNOS[4, 5]_DT config options
  ARM: OMAP3: control: add API for setting IVA bootmode
  ARM: OMAP3: CM/control: move CM scratchpad save to CM driver
  ARM: OMAP3: McBSP: do not access CM register directly
  ARM: OMAP3: clock: add API to enable/disable autoidle for a single clock
  ARM: OMAP2: CM/PM: remove direct register accesses outside CM code
  MAINTAINERS: Add patterns for DTS files for AT91
  ARM: at91: remove init_machine() as default is suitable
  ARM: at91/dt: split sama5d3 peripheral definitions
  ARM: at91/dt: split sam9x5 peripheral definitions
  ARM: Remove temporary sched_clock.h header
  ARM: clps711x: Use linux/sched_clock.h
  MAINTAINERS: Add DTS files to patterns for Samsung platform
  ARM: EXYNOS: remove unnecessary header inclusions from exynos4/5 dt machine file
  ARM: tegra: fix ARCH_TEGRA_114_SOC select sort order
  clk: nomadik: fix missing __init on nomadik_src_init
  ARM: drop explicit selection of HAVE_CLK and CLKDEV_LOOKUP
  ARM: S3C64XX: Kill CONFIG_PLAT_S3C64XX
  ASoC: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
  ...
2013-11-11 16:42:43 +09:00
Heiko Stuebner
f95a2b3d98 ARM: rockchip: enable arm-global-timer
RK2928 and RK3066 contain a dw_apb timer component, while the rk3188 uses
a slightly similar but still different timer component. But all of them
support the ARM-global-timer that got added as clocksource driver recently.

So enable support for it to get a working clocksource for rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2013-10-14 23:03:23 +02:00
Heiko Stuebner
f350f82386 ARM: rockchip: fix wrong use of non-existent CONFIG_LOCAL_TIMERS
CONFIG_LOCAL_TIMERS was removed in february, so the twd never gets
selected. Fix this by making the twd depend on SMP directly.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2013-10-14 21:01:12 +02:00
Sebastian Hesselbarth
2ab38d9343 ARM: rockchip: remove custom .init_time hook
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
2013-09-29 21:09:40 +02:00
Heiko Stuebner
d63dc0514d arm: add basic support for Rockchip RK3066a boards
This adds a generic devicetree board file and a dtsi for boards
based on the RK3066a SoCs from Rockchip.

Apart from the generic parts (gic, clocks, pinctrl) the only components
currently supported are the timers, uarts and mmc ports (all DesignWare-
based).

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Olof Johansson <olof@lixom.net>
2013-06-21 09:21:02 +02:00