Commit Graph

1472 Commits

Author SHA1 Message Date
Fabio Estevam 8da4d6b2f7 ARM: mx51: Remove mach-cpuimx51sd board file
eukrea_mbimxsd51-baseboard.c and mach-cpuimx51sd.c can be replaced with their
devicetree equivalents: imx51-eukrea-mbimxsd51-baseboard.dts and
imx51-eukrea-cpuimx51.dtsi respectively, so remove the board files.

This allows the conversion of mx51 to a devicetree-only platform.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-13 09:52:49 +08:00
Alexander Shiyan 000bf9ee89 ARM: i.MX: Setup IRQ handler from IRQ driver
This patch moves IRQ handler setup to the its corresponded IRQ
driver (AVIC, TZIC).

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:51 +08:00
Juan Solano d4e7d9427d ARM: i.MX27 pca100: remove deprecated IRQF_DISABLED
This flag is a NOOP and can be removed now.

Signed-off-by: Juan Solano <jsm@jsolano.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:51 +08:00
Alexander Shiyan 08da51c575 ARM: i.MX: Fix eMMa PrP resource size
Last address for eMMa PrP is 0x80...0x83, so increase resource size
for eMMa to 256.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:50 +08:00
Alexander Shiyan c32e9c2f9f ARM: i.MX27 clk: Remove clk_register_clkdev() for unused clocks
This patch removes clk_register_clkdev() for the clocks that do not
have any users for non-DT boards and drivers.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:50 +08:00
Alexander Shiyan 7654874ebb ARM: i.MX27 clk: Add missing clocks for MSHC and RTIC
This patch adds missing clocks handling for the Memory Stick Host
Controller (MSHC) and Run-Time Integrity Checker (RTIC).

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:49 +08:00
Shawn Guo 886cda418b ARM: imx6q: add the missing esai_ahb clock
The esai_ahb clock is derived from ahb and used to provide ESAI the
capability of register accessing and FSYS clock source for I2S clocks
dividing.  The gate bits of this esai_ahb clock are shared with the
esai clock -- the baud clock, so we need to call imx_clk_gate2_shared()
for these two clocks.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:49 +08:00
Shawn Guo f9f28cdf21 ARM: imx: add shared gate clock support
It's quite common on i.MX that one gate bit controls the gating of
multiple clocks, i.e. this is a shared gate.  The patch adds the
function imx_clk_gate2_shared() for such case.  The clocks controlled
by the same gate bits should call this function with a pointer to a
single share count variable, so that the gate bits will only be
operated on the first enabling and the last disabling of these shared
gate clocks.

Thanks to Gerhard Sittig <gsi@denx.de> for this idea.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:48 +08:00
Shawn Guo 94b5c02882 ARM: imx: lock is always valid for clk_gate2
The imx specific clk_gate2 always has a valid lock with the clock.  So
the validation on gate->lock is not really needed.  Remove it.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:48 +08:00
Shawn Guo 54ee1471f8 ARM: imx: define struct clk_gate2 on our own
The imx clk-gate2 driver implements an i.MX specific gate clock, which
has two bits controlling the gate states.  While this is a completely
separate gate driver from the common clk-gate one, it reuses the common
clk_gate structure.  Such reusing makes the extending of clk_gate2
clumsy.  Let's define struct clk_gate2 on our own to make the driver
independent of the common clk-gate one, and ease the clk_gate2 extending
at a later time.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:48 +08:00
Alexander Shiyan 1e56f8945d ARM: i.MX: Remove #ifdef CONFIG_OF
CONFIG_OF is always selected for i.MX.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:47 +08:00
Iain Paton ee3387f97b ARM: imx6: clk: i.MX6 DualLite/Solo i2c4 clock
Compared to i.MX6 Quad/Dual the CCM_CCGR1 register in the i.MX6 Solo/DualLite
replaces the ecspi5 clock with the i2c4 clock.

Handle this difference using cpu_is_imx6dl().

Signed-off-by: Iain Paton <ipaton0@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:46 +08:00
Gilles Chanteperdrix 876292d667 ARM: imx: factor device tree timer initialization
Signed-off-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:28 +08:00
Fabio Estevam bc02cd6982 ARM: imx: Remove mx51_babbage board file
The device tree version for the babbage board (imx51-babbage.dtb) has a more
complete support than the board file version, so remove the board file source
code.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:28 +08:00
Philipp Zabel 4849f25069 ARM: i.MX5: Remove outdated VPU clock lookups
CODA7 clock lookups are now defined in the device tree.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:27 +08:00
Alexander Shiyan ddeef94e3a ARM: i.MX: mx21ads: Cleanup board
- Remove unused <asm/mach/time.h> inclusion.
- Use predefined constant for CS8900A base address.
- Use DEFINE_RES_MEM() macro for NOR flash resource.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Alexander Shiyan 6b961bad80 ARM: i.MX: mx21ads: Use fixed voltage regulator for LCD power
Instead of using init() and exit() hooks from framebuffer driver
to control power of LCD, introduce fixed voltage regulator for
this purpose.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Alexander Shiyan 477fbf1db8 ARM: i.MX: mx21ads: Replace direct handling of peripheral bits with GPIOs
This patch replaces direct handling of peripheral bits with GPIOs by
using basic-mmio-gpio driver. As a result this change eliminate some
low-level code and removes custom io_map() from the board.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Philipp Zabel 4591b13289 ARM: i.MX6: ipu_di_sel clocks can set parent rates
To obtain exact pixel clocks, allow the DI clock selectors to influence
the PLLs that they are derived from.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-15 11:13:22 +08:00
Sascha Hauer 17b9b3b9e8 ARM: imx6q: clk: Parent DI clocks to video PLL via di_pre_sel
Route the video PLL to the display interface clocks via the di_pre_sel
and di_sel muxes by default.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-15 11:13:06 +08:00
Lucas Stach c2bece3cb1 ARM: imx6q-clk: parent lvds_gate from lvds_sel
Allows fror proper refcounting of the parent clocks
when enabling the clock output on CLK1/2 pads.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Richard Zhu <r65037@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-14 10:22:37 +08:00
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
Linus Torvalds 8e0c083234 fbdev changes for 3.15 (main part)
Various fbdev fixes and improvements, but nothing big.
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Merge tag 'fbdev-main-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev changes from Tomi Valkeinen:
 "Various fbdev fixes and improvements, but nothing big"

* tag 'fbdev-main-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (38 commits)
  fbdev: Make the switch from generic to native driver less alarming
  Video: atmel: avoid the id of fix screen info is overwritten
  video: imxfb: Add DT default contrast control register property.
  video: atmel_lcdfb: ensure the hardware is initialized with the correct mode
  fbdev: vesafb: add dev->remove() callback
  fbdev: efifb: add dev->remove() callback
  video: pxa3xx-gcu: switch to devres functions
  video: pxa3xx-gcu: provide an empty .open call
  video: pxa3xx-gcu: pass around struct device *
  video: pxa3xx-gcu: rename some symbols
  sisfb: fix 1280x720 resolution support
  video: fbdev: uvesafb: Remove impossible code path in uvesafb_init_info
  video: fbdev: uvesafb: Remove redundant NULL check in uvesafb_remove
  fbdev: FB_OPENCORES should depend on HAS_DMA
  OMAPDSS: convert pixel clock to common videomode style
  OMAPDSS: Remove unused get_context_loss_count support
  OMAPDSS: use DISPC register to detect context loss
  video: da8xx-fb: Use "SIMPLE_DEV_PM_OPS" macro
  video: imxfb: Convert to SIMPLE_DEV_PM_OPS
  video: imxfb: Resolve mismatch between backlight/contrast
  ...
2014-04-04 21:28:36 -07:00
Linus Torvalds cb15955638 TTY/Serial driver update for 3.15-rc1
Here's the big tty/serial driver update for 3.15-rc1.
 
 Nothing major, a number of serial driver updates and a few tty core
 fixes as well.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver update from Greg KH:
 "Here's the big tty/serial driver update for 3.15-rc1.

  Nothing major, a number of serial driver updates and a few tty core
  fixes as well.

  All have been in linux-next for a while"

* tag 'tty-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (71 commits)
  tty/serial: omap: empty the RX FIFO at the end of half-duplex TX
  tty/serial: omap: fix RX interrupt enable/disable in half-duplex TX
  serial: sh-sci: Neaten dev_<level> uses
  serial: sh-sci: Replace hardcoded 3 by UART_PM_STATE_OFF
  serial: sh-sci: Add more register documentation
  serial: sh-sci: Remove useless casts
  serial: sh-sci: Replace printk() by pr_*()
  serial_core: Avoid NULL pointer dereference in uart_close()
  serial_core: Get a reference for port->tty in uart_remove_one_port()
  serial: clps711x: Give a chance to perform useful tasks during wait loop
  serial_core: Grammar s/ports/port's/
  serial_core: Spelling s/contro/control/
  serial: efm32: properly namespace location property
  serial: max310x: Add missing #include <linux/uaccess.h>
  synclink: fix info leak in ioctl
  serial: 8250: Clean up the locking for -rt
  serial: 8250_pci: change BayTrail default uartclk
  serial: 8250_pci: more BayTrail error-free bauds
  serial: sh-sci: Add missing call to uart_remove_one_port() in failure path
  serial_core: Unregister console in uart_remove_one_port()
  ...
2014-04-01 16:55:57 -07:00
Thomas Gleixner ffb12cf002 Merge branch 'irq/for-gpio' into irq/core
Merge the request/release callbacks which are in a separate branch for
consumption by the gpio folks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-12 16:01:07 +01:00
Shawn Guo c8ae7e9bfc ARM: imx6: drop .text.head section annotation from headsmp.S
The function v7_secondary_startup() works just fine in .text section, so
there is no need to have .text.head section annotation at all.  Drop it.

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:48:26 +08:00
Shawn Guo 6a5637e52e ARM: imx6: build suspend-imx6.o with CONFIG_SOC_IMX6
Even when CONFIG_SUSPEND is enabled, it makes no sense to build
suspend-imx6.o if none of i.MX6 support is built in.  Let's build
suspend-imx6.o only when both CONFIG_SUSPEND and CONFIG_SOC_IMX6 are
enabled.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:48:25 +08:00
Shawn Guo 9cdde7217e ARM: imx6: rename pm-imx6q.c to pm-imx6.c
The pm-imx6q.c works for all i.MX6 SoCs, so let's rename it to pm-imx6.c
and have the build controlled by option CONFIG_SOC_IMX6.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:48:24 +08:00
Shawn Guo 94f890ec91 ARM: imx6: introduce CONFIG_SOC_IMX6 for i.MX6 common stuff
The i.MX6 SoCs have something in common, so let's introduce
CONFIG_SOC_IMX6 for those stuff.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:47:51 +08:00
Shawn Guo 110666dc65 ARM: imx6: do not call imx6q_suspend_init() with !CONFIG_SUSPEND
When CONFIG_SUSPEND is not enabled, we should reasonably skip the call
to imx6q_suspend_init().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:53 +08:00
Shawn Guo afc51f4643 ARM: imx6: call suspend_set_ops() from suspend routine
Rename function imx6q_ocram_suspend_init() to imx6q_suspend_init() and
call suspend_set_ops() from there.  Now we get a centralized function
for suspend initialization.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:52 +08:00
Shawn Guo facadba6a1 ARM: imx6: build headsmp.o only on CONFIG_SMP
With v7_cpu_resume() being moved out of headsmp.S, all the remaining
code in the file is only needed by CONFIG_SMP build.  So we can control
the build of headsmp.o with only obj-$(CONFIG_SMP) now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:50 +08:00
Shawn Guo c356bdb407 ARM: imx6: move v7_cpu_resume() into suspend-imx6.S
The suspend-imx6.S is introduced recently for suspend low-level assembly
code.  Since function v7_cpu_resume() is only used by suspend support,
it makes sense to move the function into suspend-imx6.S, and control the
build of the file with CONFIG_SUSPEND option.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:49 +08:00
Philipp Zabel 7ea653efa9 ARM i.MX6q: Mark VPU and IPU AXI transfers as cacheable, increase IPU priority
This is needed so that the IPU framebuffer scanout cannot be
starved by VPU or GPU activity.
Some boards like the SabreLite and SabreSD seem to set this in
the DCD already, but the documented register reset values do not
contain the necessary settings.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:48 +08:00
Fabio Estevam 7899d7d578 ARM: mach-imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX2_WDT from SOC_IMX53
SOC_IMX53 is a device-tree only platform, so we don't need
IMX_HAVE_PLATFORM_IMX2_WDT at all because this symbol only provides some code
to help register imx2-wdt platform devices.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:45 +08:00
Fabio Estevam 67f5b30875 ARM: mach-imx: Select CONFIG_SRAM at ARCH_MXC level
Booting a mx6q system built with multi_v7_defconfig leads to the following
error messages on boot:

[    0.037758] imx6q_ocram_suspend_init: ocram pool unavailable!
[    0.037768] imx6_pm_common_init: failed to initialize ocram suspend -19!

This happens because CONFIG_SRAM is not selected by default in
multi_v7_defconfig.

Fix this by selecting CONFIG_SRAM at ARCH_MXC level, so that other SoCs could
use the SRAM driver as well.

As SRAM automatically selects GENERIC_ALLOCATOR, just drop it from the Kconfig
entry.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:17 +08:00
Anson Huang c962a09963 ARM: imx: add speed grading check for i.mx6 soc
The fuse map of speed_grading[1:0] defines the max speed
of ARM, see below the definition:

2b'11: 1200000000Hz;
2b'10: 996000000Hz;
2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
2b'00: 792000000Hz;

Need to remove all illegal setpoints according to fuse
map.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:22 +08:00
Anson Huang 6e6cdf6656 ARM: imx: avoid calling clk APIs in idle thread which may cause schedule
As clk_pllv3_wait_lock will call usleep_range, and the clk APIs
mutex lock may be held when CPU entering idle, so calling clk
APIs must be avoided in cpu idle thread, this is to avoid reschedule
warning in cpu idle, just access register directly to achieve that.

bad: scheduling from the idle thread!
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.0-rc1+ #657
Backtrace:
[<80012188>] (dump_backtrace) from [<8001246c>] (show_stack+0x18/0x1c)
 r6:808c0038 r5:00000000 r4:808e5a1c r3:00000000
[<80012454>] (show_stack) from [<8064b2ec>] (dump_stack+0x84/0x9c)
[<8064b268>] (dump_stack) from [<80055ee0>] (dequeue_task_idle+0x20/0x30)
 r5:808bef40 r4:bf7dff40
[<80055ec0>] (dequeue_task_idle) from [<8004f028>] (dequeue_task+0x30/0x50)
 r4:bf7dff40 r3:80055ec0
[<8004eff8>] (dequeue_task) from [<800503c0>] (deactivate_task+0x30/0x34)
 r4:bf7dff40
[<80050390>] (deactivate_task) from [<8064d8e4>] (__schedule+0x2c8/0x5c0)
[<8064d61c>] (__schedule) from [<8064dc14>] (schedule+0x38/0x88)
 r10:80912964 r9:808c1e50 r8:808c0038 r7:808cbf30 r6:80e128ec r5:60000093
 r4:80912968
[<8064dbdc>] (schedule) from [<8064dfec>] (schedule_preempt_disabled+0x10/0x14)
[<8064dfdc>] (schedule_preempt_disabled) from [<8064ebc0>] (mutex_lock_nested+0x1c0/0x3c0)
[<8064ea00>] (mutex_lock_nested) from [<804ae71c>] (clk_prepare_lock+0x44/0xe4)
 r10:806554cc r9:bf7df1bc r8:808cf4f8 r7:808cf544 r6:bf7df1b8 r5:808c0010
 r4:80e69750
[<804ae6d8>] (clk_prepare_lock) from [<804af214>] (clk_get_rate+0x14/0x64)
 r6:bf7df1b8 r5:00000002 r4:bf017000 r3:80922ad0
[<804af200>] (clk_get_rate) from [<80025d30>] (imx6sl_set_wait_clk+0x18/0x20)
 r5:00000002 r4:00000001
[<80025d18>] (imx6sl_set_wait_clk) from [<80023454>] (imx6sl_enter_wait+0x20/0x48)
[<80023434>] (imx6sl_enter_wait) from [<80477c24>] (cpuidle_enter_state+0x44/0xfc)
 r4:3c386e48 r3:80023434
[<80477be0>] (cpuidle_enter_state) from [<80477dd8>] (cpuidle_idle_call+0xfc/0x160)
 r8:808cf4f8 r7:00000001 r6:80e69534 r5:00000000 r4:bf7df1b8
[<80477cdc>] (cpuidle_idle_call) from [<8000f61c>] (arch_cpu_idle+0x10/0x50)
 r9:808c0000 r8:00000000 r7:80921a89 r6:808c8938 r5:808c899c r4:808c0000
[<8000f60c>] (arch_cpu_idle) from [<8006fa94>] (cpu_startup_entry+0x108/0x160)
[<8006f98c>] (cpu_startup_entry) from [<806452ac>] (rest_init+0xb4/0xdc)
 r7:808afae0
[<806451f8>] (rest_init) from [<8086fb58>] (start_kernel+0x328/0x38c)
 r6:ffffffff r5:808c8880 r4:808c8a30
[<8086f830>] (start_kernel) from [<80008074>] (0x80008074)

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:21 +08:00
Shawn Guo 810c0ca879 ARM: imx6q: support ptp and rmii clock from pad
On imx6qdl, the ENET RMII and PTP clock can come from either internal
ANATOP/CCM or external clock source through pad GPIO_16.  But in case
of the external clock source, bit IOMUXC_GPR1[21] needs to be cleared.

The patch adds the support for systems that use an external clock source
and distinguishes above two cases by checking if the PTP clock specified
in device tree is the one coming from the internal ANATOP/CCM.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:20 +08:00
Shawn Guo b30c6d0180 ARM: imx6q: remove unneeded clk lookups
Since commit (a94f8ec ARM: imx6q: remove board specific CLKO setup),
a number of clk lookups in imx6q clock driver is no longer needed.
Let's remove them.

The cpu0 lookup is also removed since we are now running imx6 cpufreq
driver and looking up clocks from device tree.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:19 +08:00
Sebastian Andrzej Siewior 1119c84aa3 ARM: imx: enable delaytimer on the imx timer
The imx can support timer-based delays, so implement this.
Skips past jiffy calibration.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:15 +08:00
Anson Huang 17626b7cfc ARM: imx: add always-on clock array for i.mx6sl to maintain correct usecount
IPG, ARM and MMDC's clock should be enabled during kernel boot up,
so we need to maintain their usecount, otherwise, they may be
disabled unexpectedly if their children's clock are turned off, and
caused their parent PLLs also get disabled, which is incorrect.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:14 +08:00
Anson Huang 64b0868139 ARM: imx: add suspend in ocram support for i.mx6sl
i.MX6SL's suspend in ocram function is derived from i.MX6Q,
it can lower the DDR IO power from ~10mA@1.2V to ~1mA@1.2V,
measured on i.MX6SL EVK board, SH5.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:13 +08:00
Anson Huang da9e926135 ARM: imx: add suspend in ocram support for i.mx6dl
i.MX6DL's suspend in ocram function is derived from i.MX6Q,
it can lower the DDR IO power from ~26mA@1.5V to ~15mA@1.5V,
measured on i.MX6DL SabreSD board, R25.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:12 +08:00
Anson Huang df595746fa ARM: imx: add suspend in ocram support for i.mx6q
When system enter suspend, we can set the DDR IO to
high-Z state to save DDR IOs' power consumption, this
operation can save many power(from ~26mA@1.5V to ~15mA@1.5V,
measured on i.MX6Q SabreSD board, R25) of DDR IOs. To
achieve that, we need to copy the suspend code to ocram
and run the low level hardware related code(set DDR IOs
to high-Z state) in ocram.

If there is no ocram space available, then system will
still do suspend in external DDR, hence no DDR IOs will
be set to high-Z.

The OCRAM usage layout is as below,

ocram suspend region(4K currently):
======================== high address ======================
                              .
                              .
                              .
                              ^
                              ^
                              ^
                      imx6_suspend code
             PM_INFO structure(imx6_cpu_pm_info)
======================== low address =======================

Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:10 +08:00
Sascha Hauer 02ae8e8682 ARM i.MX: remove PWM platform support
As the i.MX pwm driver is devicetree only, remove the platform
support for this device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:09 +08:00
Liu Ying b78f1e8074 ARM: imx: clk-vf610: Suppress duplicate const sparse warning
There should be no duplicate const specifiers for those static
constant character string arrays defined for clock mux options.
Also, the arrays are only taken as the 5th argument for the
imx_clk_mux() function, which is in the type of 'const char
**parents'.  So, let's remove the 2nd const specifier right
after 'char'.

This patch fixes these sparse warnings:
arch/arm/mach-imx/clk-vf610.c:66:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:67:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:68:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:69:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:70:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:71:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:72:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:73:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:74:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:75:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:76:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:77:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:78:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:79:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:80:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:81:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:83:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:84:25: warning: duplicate const

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:08 +08:00
Liu Ying b21c22e3a9 ARM: imx: clk-imx6sl: Suppress duplicate const sparse warning
There should be no duplicate const specifiers for those static
constant character string arrays defined for clock mux options.
Also, the arrays are only taken as the 5th argument for the
imx_clk_mux() function, which is in the type of 'const char
**parents'.  So, let's remove the 2nd const specifier right
after 'char'.

This patch fixes these sparse warnings:
arch/arm/mach-imx/clk-imx6sl.c:21:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:22:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:23:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:24:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:25:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:26:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:27:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:28:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:29:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:30:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:31:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:32:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:33:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:34:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:35:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:36:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:37:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:38:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:39:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:40:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:41:25: warning: duplicate const

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:07 +08:00
John Tobias 5a1513f60f ARM: imx: add select on ARCH_MXC for cpufreq support
Move ARCH_HAS_CPUFREQ, ARCH_HAS_OPP and PM_OPP on ARCH_MXC so that
the user can enable the cpufreq support for iMX6Q and/or iMX6SL.

Signed-off-by: John Tobias <john.tobias.ph@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:06 +08:00
Denis Carikli c51bcd158d ARM i.MX35: build in pinctrl support.
shawn.guo: While at it, we drop 'select PINCTRL' from SOC_IMX35, since
it's been covered by ARCH_MXC.

Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:04 +08:00
Anson Huang 751f7e999a ARM: imx: add cpuidle support for i.mx6sl
Add cpuidle support for i.MX6SL, currently only support
two cpuidle levels(ARM wfi and WAIT mode), and add software
workaround for WAIT mode errata as below:

ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken
          during WAIT mode entry process could cause cache memory
          corruption.

Software workaround:
    To prevent this issue from occurring, software should ensure that
the ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before
entering WAIT mode.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:01 +08:00
Anson Huang 848db4a0a1 ARM: imx: AHB rate must be set to 132MHz on i.mx6sl
The reset value of AHB divider is 3, so current AHB rate
is 99MHz which is not correct for kernel, need to ensure
AHB rate is 132MHz in clk driver, as ipg is sourcing from
AHB, and it should be 66MHz by default.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:00 +08:00
Fabio Estevam fa6be65ed4 ARM: imx: Use INT_MEM_CLK_LPM as the bit name
Bit 17 of register CCM_CGPR is called INT_MEM_CLK_LPM as per the mx6
reference manual, so use this name instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:34:59 +08:00
Shawn Guo c1b2a174c3 - Remove common kconfig options required by multi-platform builds out
of individual platforms as they are redundant.
 - Make SMP, CACHE_L2X0 and GPIO config options user visible on
 multi-platform builds as most platforms enable these options and all
 platforms can run with them enabled.
 - Make multi-platform v6 default to more optimal v6k rather than v6
 - Remove the last bit of mach-virt and convert it to just a kconfig
 option.
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Merge tag 'kconfig-cleanup-for-3.15' into imx/soc

- Remove common kconfig options required by multi-platform builds out
of individual platforms as they are redundant.
- Make SMP, CACHE_L2X0 and GPIO config options user visible on
multi-platform builds as most platforms enable these options and all
platforms can run with them enabled.
- Make multi-platform v6 default to more optimal v6k rather than v6
- Remove the last bit of mach-virt and convert it to just a kconfig
option.

Conflicts:
	arch/arm/mach-omap2/Kconfig
2014-03-05 10:31:54 +08:00
Thomas Gleixner 8435cf7576 arm: Replace various irq_desc accesses
Use the proper functions. There is no need to fiddle with irq_desc.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>C
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: arm <linux-arm-kernel@lists.infradead.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Link: http://lkml.kernel.org/r/20140223212737.099151500@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-04 17:37:52 +01:00
Alexander Shiyan 45af780a0f serial: imx: Remove init() and exit() platform callbacks
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-28 16:36:45 -08:00
Rob Herring 42f4754a0c ARM: Select V6K instead of V6 by default for multi-platform
MULTI_V6 should default to V6K as it is more optimal than V6. Any
platform which is not V6K should select CPU_V6 which will enable the
less optimal code paths.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Anton Vorontsov <anton@enomsg.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Jamie Iles <jamie@jamieiles.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-02-19 16:46:32 -06:00
Rob Herring 9352b05b6e ARM: select MIGHT_HAVE_CACHE_L2X0 for V6 and V7 multi-platform
Many V6 and V7 platforms have an L2x0 cache, so make
CONFIG_MIGHT_HAVE_CACHE_L2X0 visible for V6 and 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 16:44:00 -06:00
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
Shawn Guo 28a9f3b078 ARM: imx6: build pm-imx6q.c independently of CONFIG_PM
When building a kernel image with only CONFIG_CPU_IDLE but no CONFIG_PM,
we will get the following link error.

  LD      init/built-in.o
arch/arm/mach-imx/built-in.o: In function `imx6q_enter_wait':
platform-spi_imx.c:(.text+0x25c0): undefined reference to `imx6q_set_lpm'
platform-spi_imx.c:(.text+0x25d4): undefined reference to `imx6q_set_lpm'
arch/arm/mach-imx/built-in.o: In function `imx6q_cpuidle_init':
platform-spi_imx.c:(.init.text+0x75d4): undefined reference to `imx6q_set_chicken_bit'
make[1]: *** [vmlinux] Error 1

Since pm-imx6q.c has been a collection of library functions that access
CCM low-power registers used by not only suspend but also cpuidle and
other drivers, let's build pm-imx6q.c independently of CONFIG_PM to fix
above error.

Reported-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: stable@vger.kernel.org
Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-02-18 16:03:43 -08:00
Alexander Shiyan 9fe21fdc5f video: imxfb: Use regulator API with LCD class for powering
This patch replaces custom lcd_power() callback with
regulator API over LCD class.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-02-11 15:10:17 +02:00
Philipp Zabel e7c57ecd60 ARM: imx6: Initialize low-power mode early again
Since commit 9e8147bb5e
"ARM: imx6q: move low-power code out of clock driver"
the kernel fails to boot on i.MX6Q/D if preemption is
enabled (CONFIG_PREEMPT=y). The kernel just hangs
before the console comes up.

The above commit moved the initalization of the low-power
mode setting (enabling clocked WAIT states), which was
introduced in commit 83ae20981a
"ARM: imx: correct low-power mode setting", from
imx6q_clks_init to imx6q_pm_init. Now it is called
much later, after all cores are enabled.

This patch moves the low-power mode initialization back
to imx6q_clks_init again (and to imx6sl_clks_init).

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-02-10 10:37:32 -08:00
Linus Torvalds e914e3f48d Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull more ARM updates from Russell King:
 "Some further changes for this merge window:
   - fix bug building with gcc 4.6.4 and EABI.
   - fix pgtbl macro with some LPAE configurations
   - fix initrd override - FDT was overriding the command line, and it
     should be the other way around.
   - fix byteswap of instructions in undefined instruction handler
   - add basic support for SolidRun Hummingboard and Cubox-i boards"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: fix building with gcc 4.6.4
  ARM: 7941/2: Fix incorrect FDT initrd parameter override
  ARM: 7947/1: Make pgtbl macro more robust
  ARM: 7946/1: asm: __und_usr_thumb need byteswap instructions in BE case
  ARM: 7930/1: Introduce atomic MMIO modify
  ARM: imx: initial SolidRun Cubox-i support
  ARM: imx: initial SolidRun HummingBoard support
2014-01-29 18:20:41 -08:00
Linus Torvalds 268943fb75 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem update from Bryan Wu:
 "Basically this cycle is mostly cleanup for LED subsystem"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: s3c24xx: Remove hardware.h inclusion
  leds: replace list_for_each with list_for_each_entry
  leds: kirkwood: Cleanup in header files
  leds: pwm: Remove a warning on non-DT platforms
  leds: leds-pwm: fix duty time overflow.
  leds: leds-mc13783: Remove unneeded mc13xxx_{un}lock
  leds: leds-mc13783: Remove duplicate field in platform data
  drivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base'
  leds: lp5523: Support LED MUX configuration on running a pattern
  leds: lp5521/5523: Fix multiple engine usage bug
  LEDS: tca6507 - fix up some comments.
  LEDS: tca6507: add device-tree support for GPIO configuration.
  LEDS: tca6507 - fix bugs in parsing of device-tree configuration.
2014-01-28 18:53:01 -08:00
Russell King 5efa906486 Merge branch 'cubox-i-init' into for-linus 2014-01-28 21:38:58 +00:00
Alexander Shiyan 01a7a063e8 leds: leds-mc13783: Remove duplicate field in platform data
LED platform data are overwhelmed by excessive field "max_cur"
which just replicates few bits of "led_control" field.
This patch removes this field and adds a definition for the
current settings in the header.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-01-27 17:28:49 -08:00
Russell King 208d7baf80 ARM: imx: initial SolidRun HummingBoard support
Add support for the SolidRun HummingBoard.  This commit adds support for
the following interfaces on this board:

- Consumer Ir receiver
- S/PDIF output
- Both USB interfaces
- Gigabit Ethernet using AR8035
- UART port

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-27 14:18:09 +00:00
Linus Torvalds 1b59bab55e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:
 "Just a swath of driver fixes and cleanups, no new drivers this time
  (although ALPS now supports one of the newer protocols, more to come)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  Input: wacom - add support for DTU-1031
  Input: wacom - fix wacom->shared guards for dual input devices
  Input: edt_ft5x06 - use devm_* functions where appropriate
  Input: hyperv-keyboard - pass through 0xE1 prefix
  Input: logips2pp - fix spelling s/reciver/receiver/
  Input: delete non-required instances of include <linux/init.h>
  Input: twl4030-keypad - convert to using managed resources
  Input: twl6040-vibra - remove unneeded check for CONFIG_OF
  Input: twl4030-keypad - add device tree support
  Input: twl6040-vibra - add missing of_node_put
  Input: twl4030-vibra - add missing of_node_put
  Input: i8042 - cleanup SERIO_I8042 dependencies
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on x86
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on sparc
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO for SH_CAYMAN
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on mips
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64
  Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge
  ...
2014-01-24 17:17:30 -08:00
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
Linus Torvalds f2c73464d7 ARM: SoC cleanups for 3.14
This is the branch where we usually queue up cleanup efforts, moving
 drivers out of the architecture directory, header file restructuring,
 etc. Sometimes they tangle with new development so it's hard to keep it
 strictly to cleanups.
 
 Some of the things included in this branch are:
 
 * Atmel SAMA5 conversion to common clock
 * Reset framework conversion for tegra platforms
  - Some of this depends on tegra clock driver reworks that are shared with Mike
    Turquette's clk tree.
 * Tegra DMA refactoring, which are shared branches with the DMA tree.
 * Removal of some header files on exynos to prepare for multiplatform
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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 is the branch where we usually queue up cleanup efforts, moving
  drivers out of the architecture directory, header file restructuring,
  etc.  Sometimes they tangle with new development so it's hard to keep
  it strictly to cleanups.

  Some of the things included in this branch are:

   * Atmel SAMA5 conversion to common clock
   * Reset framework conversion for tegra platforms
    - Some of this depends on tegra clock driver reworks that are shared
      with Mike Turquette's clk tree.
   * Tegra DMA refactoring, which are shared branches with the DMA tree.
   * Removal of some header files on exynos to prepare for
     multiplatform"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (169 commits)
  ARM: mvebu: move Armada 370/XP specific definitions to armada-370-xp.h
  ARM: mvebu: remove prototypes of non-existing functions from common.h
  ARM: mvebu: move ARMADA_XP_MAX_CPUS to armada-370-xp.h
  serial: sh-sci: Rework baud rate calculation
  serial: sh-sci: Compute overrun_bit without using baud rate algo
  serial: sh-sci: Remove unused GPIO request code
  serial: sh-sci: Move overrun_bit and error_mask fields out of pdata
  serial: sh-sci: Support resources passed through platform resources
  serial: sh-sci: Don't check IRQ in verify port operation
  serial: sh-sci: Set the UPF_FIXED_PORT flag
  serial: sh-sci: Remove duplicate interrupt check in verify port op
  serial: sh-sci: Simplify baud rate calculation algorithms
  serial: sh-sci: Remove baud rate calculation algorithm 5
  serial: sh-sci: Sort headers alphabetically
  ARM: EXYNOS: Kill exynos_pm_late_initcall()
  ARM: EXYNOS: Consolidate selection of PM_GENERIC_DOMAINS for Exynos4
  ARM: at91: switch Calao QIL-A9260 board to DT
  clk: at91: fix pmc_clk_ids data type attriubte
  PM / devfreq: use inclusion <mach/map.h> instead of <plat/map-s5p.h>
  ARM: EXYNOS: remove <mach/regs-clock.h> for exynos
  ...
2014-01-23 18:36:55 -08:00
Linus Torvalds f341535193 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
 "In this set, we have:
   - Refactoring of some of the old StrongARM-1100 GPIO code to make
     things simpler by Dmitry Eremin-Solenikov
   - Read-only and non-executable support for modules on ARM from Laura
     Abbot
   - Removal of unnecessary set_drvdata() calls in AMBA code
   - Some non-executable support for kernel lowmem mappings at the 1MB
     section granularity, and dumping of kernel page tables via debugfs
   - Some improvements for the timer/clock code on Footbridge platforms,
     and cleanup some of the LED code there
   - Fix fls/ffs() signatures to match x86 to prevent build warnings,
     particularly where these are used with min/max() macros
   - Avoid using the bootmem allocator on ARM (patches from Santosh
     Shilimkar)
   - Various asid/unaligned access updates from Will Deacon"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (51 commits)
  ARM: SMP implementations are not supposed to return from smp_ops.cpu_die()
  ARM: ignore memory below PHYS_OFFSET
  Fix select-induced Kconfig warning for ZBOOT_ROM
  ARM: fix ffs/fls implementations to match x86
  ARM: 7935/1: sa1100: collie: add gpio-keys configuration
  ARM: 7932/1: bcm: Add DEBUG_LL console support
  ARM: 7929/1: Remove duplicate SCHED_HRTICK config option
  ARM: 7928/1: kconfig: select HAVE_EFFICIENT_UNALIGNED_ACCESS for CPUv6+ && MMU
  ARM: 7927/1: dcache: select DCACHE_WORD_ACCESS for big-endian CPUs
  ARM: 7926/1: mm: flesh out and fix the comments in the ASID allocator
  ARM: 7925/1: mm: keep track of last ASID allocation to improve bitmap searching
  ARM: 7924/1: mm: don't bother with reserved ttbr0 when running with LPAE
  ARM: PCI: add legacy IDE IRQ implementation
  ARM: footbridge: cleanup LEDs code
  ARM: pgd allocation: retry on failure
  ARM: footbridge: add one-shot mode for DC21285 timer
  ARM: footbridge: add sched_clock implementation
  ARM: 7922/1: l2x0: add Marvell Tauros3 support
  ARM: 7877/1: use built-in byte swap function
  ARM: 7921/1: mcpm: remove redundant dsb instructions prior to sev
  ...
2014-01-23 18:34:03 -08:00
Russell King 1096813131 Fix select-induced Kconfig warning for ZBOOT_ROM
warning: (ARCH_MULTIPLATFORM && ARCH_CLPS711X && ARCH_PXA &&
 SOC_EXYNOS5440 && ARCH_EMEV2) selects AUTO_ZRELADDR which
 has unmet direct dependencies (!ZBOOT_ROM)

This is because it's possible to have ZBOOT_ROM enabled, but at the
same time have another option enabled which selects AUTO_ZRELADDR
overriding the !ZBOOT_ROM dependency.  Fix this by reversing the
dependencies between ZBOOT_ROM and the options which depend on
!ZBOOT_ROM.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-21 16:42:05 +00:00
Olof Johansson e05f9ac42c i.MX SoC changes for 3.14:
- Add the initial i.MX50 SoC support
  - Support device tree boot for i.MX35
  - Move imx5 clock driver to use macros for clock ID
  - Some random updates and non-critical fixes on clock drivers
  - A few defconfig updates and minor cleanups
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Merge tag 'imx-soc-3.14' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc

From Shawn Guo:
i.MX SoC changes for 3.14:
 - Add the initial i.MX50 SoC support
 - Support device tree boot for i.MX35
 - Move imx5 clock driver to use macros for clock ID
 - Some random updates and non-critical fixes on clock drivers
 - A few defconfig updates and minor cleanups

* tag 'imx-soc-3.14' of git://git.linaro.org/people/shawnguo/linux-2.6: (37 commits)
  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.
  ARM: imx: update imx_v6_v7_defconfig
  ARM: imx6sl: Add missing spba clock to clock tree
  ARM: imx6sl: Add missing pll4_audio_div to the clock tree
  ARM: imx6: Derive spdif clock from pll3_pfd3_454m
  ARM: imx: use __initconst for const init definition
  ARM i.MX5: fix obvious typo in ldb_di0_gate clk definition
  ARM i.MX5: set CAN peripheral clock to 24 MHz parent
  ARM: imx: pllv1: Fix PLL calculation for i.MX27
  ARM i.MX5: fix "shift" value for lp_apm_sel on i.MX50 and i.MX53
  ARM: imx: imx53: Add SATA PHY clock
  ARM: imx_v6_v7_defconfig: Enable STMPE touchscreen
  ARM: imx: rename IMX6SL_CLK_CLK_END to IMX6SL_CLK_END
  ARM: imx: select PINCTRL at sub-architecure level
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-02 12:10:12 -08:00
Anson Huang 48c9584111 ARM: imx: improve the comment of CCM lpm SW workaround
Improve the comment of SW workaround for CCM lpm issue using
hardware errata description to avoid confusion.

ERR007265: CCM: When improper low-power sequence is used, the SoC
enters low power mode before the ARM core executes WFI.

Software workaround:
1) Software should trigger IRQ #32 (IOMUX) to be always pending
   by setting IOMUX_GPR1_GINT.
2) Software should then unmask IRQ #32 in GPC before setting CCM
   Low-Power mode.
3) Software should mask IRQ #32 right after CCM Low-Power mode is
   set (set bits 0-1 of CCM_CLPCR).

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:48 +08:00
Anson Huang b4e844f019 ARM: imx: improve status check of clock gate
For ccm clock gate, both 2b'11 and 2b'01 should be treated
as clock enabled, see below description in CCM, whenver CPU
trys to check clock gate's status, system will be in run mode.

2b'00: clock is off during all modes;
2b'01: clock is on in run mode, but off in wait and stop mode;
2b'10: Not applicable;
2b'11: clock is on during all modes, except stop mode.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:46 +08:00
Anson Huang adf15fa596 ARM: imx: add necessary interface for pfd
Common clk framework will disable unused clks in late init only if
they are enabled by default and no one is using it, so we need to
add is_enabled callback for clk framework to get clks' status.

PFD clocks are enabled by hardware reset, so we need to add
interface for common clk framework to disable those unused ones for
saving power.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:45 +08:00
John Tobias 1ed4aaebcd ARM: imx: Add cpu frequency scaling support
Re-using iMX6Q driver for cpu frequency scaling.

Signed-off-by: John Tobias <john.tobias.ph@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:41 +08:00
Steffen Trumtrar a55a3d7266 ARM i.MX35: Add devicetree support.
Cc: linux-arm-kernel@lists.infradead.org
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:40 +08:00
Nicolin Chen 8962a5dbe0 ARM: imx6sl: Add missing spba clock to clock tree
We are missing spba clock in imx6sl's clock tree, thus add it.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:37 +08:00
Nicolin Chen 238fb18214 ARM: imx6sl: Add missing pll4_audio_div to the clock tree
There's a dividor for pll4_audio clock missing in clock tree, thus add it.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:36 +08:00
Nicolin Chen 4390e62260 ARM: imx6: Derive spdif clock from pll3_pfd3_454m
SPDIF can derive a TX clock for playback from one of its clock sources --
spdif root clock to match its supporting sample rates. So this patch set
the spdif root clock's parent to pll3_pfd3_454m since the pll3_pfd3_454m
can approximately meet its sample rate requirement.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:34 +08:00
Shawn Guo df79bc9c27 ARM: imx: use __initconst for const init definition
0-DAY kernel build testing backend reports the following.

 scripts/checkpatch.pl 0001-ARM-imx-add-support-code-for-IMX50-based-machines.patch
 # many are suggestions rather than must-fix

 ERROR: Use of const init definition must use __initconst
 #80: arch/arm/mach-imx/mach-imx50.c:26:
 +static const char *imx50_dt_board_compat[] __initdata = {

While at it, fix the error globally for IMX platform.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:33 +08:00
Lothar Waßmann d5e9b24304 ARM i.MX5: fix obvious typo in ldb_di0_gate clk definition
ldb_di0_gate is registerd with the clk index of IMX5_CLK_LDB_DI1_GATE,
thus the DI0 interface will be turned off inadvertently during boot.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:31 +08:00
Marc Kleine-Budde 10471fa3c7 ARM i.MX5: set CAN peripheral clock to 24 MHz parent
This patch sets the parent of CAN peripheral clock (a.k.a. CPI clock) to the
lp_apm clock, which has a rate of 24 MHz.

In the CAN world a base clock with multiple of 8 MHz is suited best for all CIA
recommented bit rates. Without this patch the CAN peripheral clock on i.MX53
has a rate of 66.666 MHz which produces quite large bit rate errors.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:30 +08:00
Alexander Shiyan a594790368 ARM: imx: pllv1: Fix PLL calculation for i.MX27
MFN bit 9 on i.MX27 has a different meaning than in other SOCs. This
is a just sign bit. This patch makes different calculation for i.MX27.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:29 +08:00
Marc Kleine-Budde 630a212501 ARM i.MX5: fix "shift" value for lp_apm_sel on i.MX50 and i.MX53
According to the i.MX50 Rev. 1 and i.MX53 Rev. 2.1 datasheet the lp_apm_sel is
bit 10 in the CCM_CCSR register not bit 9. On the i.MX51 it's bit 9.

This patch fixes this issue.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:27 +08:00
Marek Vasut 6fb8954b08 ARM: imx: imx53: Add SATA PHY clock
Add SATA PHY clock which are derived from the USB PHY1 clock. Note that this
patch derives the SATA PHY clock from USB PHY1 clock gate so that the SATA
driver can ungate both the SATA PHY clock and USB PHY1 clock for the SATA to
work correctly.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:26 +08:00
Shawn Guo 4e5d0d6184 ARM: imx: rename IMX6SL_CLK_CLK_END to IMX6SL_CLK_END
The macro name IMX6SL_CLK_CLK_END is a little insane.  Rename it to
IMX6SL_CLK_END.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:23 +08:00
Shawn Guo f7f3d4b29f ARM: imx: select PINCTRL at sub-architecure level
Instead of selecting PINCTRL on individual SoC, let's select it at IMX
sub-architecure level.

While at it, it also adds the missing PINCTRL_IMX50 selection for
SOC_IMX50.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:22 +08:00
Anson Huang 8202a3ce9c ARM: imx: clk: correct arm clock usecount
ARM clock is sourcing from pll1_sw, and pll1_sw can be either from
pll1_sys or step, so we should enable arm clock during clock
initialization instead of pll1_sys, otherwise, arm clock's usecount
would be incorrect and PLL1 will never be disabled even it is not
used.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:21 +08:00
Lucas Stach 490dd8808a ARM: imx5: introduce DT includes for clock provider
Use clock defines in order to make devicetrees more
human readable.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-31 09:36:11 +08:00
Masanari Iida 77d84ff87e treewide: Fix typos in printk
Correct spelling typo in various part of kernel

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-12-19 15:10:49 +01:00
Dmitry Torokhov 348324c5b1 Linux 3.13-rc4
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Merge tag 'v3.13-rc4' into next

Synchronize with mainline to bring in the new keycode definitions and
new hwmon API.
2013-12-16 02:04:49 -08:00
Nicolas Pitre f45913fde0 ARM: clean up cache handling in platform code
We have a handy macro to replace open coded __cpuc_flush_dcache_area(()
and outer_clean_range() sequences. Let's use it. No functional change.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11 16:24:34 -08:00
Markus Pargmann acb350e055 ARM: imx27: enable pinctrl
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:33 +08:00
Jingchang Lu daaff6e95b ARM: imx: Add DMAMUX clock for Vybrid vf610 SoC
Signed-off-by: Jingchang Lu <b35083@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:31 +08:00
Alexander Shiyan 9b015e5a95 ARM: i.MX5x: Add SAHARA clock for i.MX5x CPUs
Patch adds missing Security Accelerator (SAHARA) clock for i.MX5x CPUs.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:30 +08:00
Denis Carikli 5bcaa7a32c ARM i.MX25: build in pinctrl support.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:29 +08:00
Wei Yongjun ecf402f017 ARM i.MX53: remove duplicated include from clk-imx51-imx53.c
Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:28 +08:00
Greg Ungerer 374daac46f ARM: imx: add support code for IMX50 based machines
Add machine support code for the Freescale IMX50 SoC.

The IMX50 is quite similar to the Freescale IMX53, and contains many of the
same periperhal hardware modules, at the same address offsets as the IMX53.
(Notable exceptions are that the IMX50 contains no CAN bus hardware, less
GPIO, no VPU, it does contain an Electrophoretic display controller though).

This support code uses some of the IMX53 setup code to reduce duplication
of what would be identical init IO setup.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:26 +08:00
Uwe Kleine-König 81efe0fc67 ARM: imx: drop support for irq priorisation
The code for irq priorisation support doesn't have any in-tree users and
the Kconfig description does wrong promises because nowadays irq
handlers are called with irqs disabled, so no high prioritized irq can
interrupt a lower prioritized handler.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:25 +08:00
Shawn Guo 5a269d2284 ARM: imx: remove mxc_iomux_v3_init() call from imx53_init_early()
Today, imx53 handles iomux configuration using pinctrl driver, so
mxc_iomux_v3_init() call in imx53_init_early() is there for nothing.
Remove the call from there.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:24 +08:00
Greg Ungerer 361b0a419e ARM: imx: allow configuration of the IMX50 SoC
Allow the Freescale IMX50 SoC support code to be configured on.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:21 +08:00
Greg Ungerer 7a9cc1ad21 ARM: imx: add clocking support code for the IMX50 SoC
Add code to support the specific clock tree of the Freescale IMX50 SoC.
It can use much of the common IMX51/IMX53 clocking code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:20 +08:00
Tim Harvey 4bb1d09fe4 ARM: imx: add PCI fixup for PEX860X on Gateworks board
The PEX860X has GPIO's which are used for PCI Reset lines on the
Gateworks Ventana boards.  The GPIO's need to be set as output
level high so as to allow the PCIe devices to come out of reset.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-12-09 13:18:16 +08:00
Kevin Hilman b8969ef5cf Merge branch 'soc/sched_clock' into next/soc
From Stephen Boyd:
* soc/sched_clock:
  ARM: versatile: Switch to sched_clock_register()
  ARM: orion: Switch to sched_clock_register()
  ARM: OMAP: Switch to sched_clock_register()
  ARM: iop: Switch to sched_clock_register()
  ARM: u300: Switch to sched_clock_register()
  ARM: sa1100: Switch to sched_clock_register()
  ARM: pxa: Switch to sched_clock_register()
  ARM: OMAP2+: Switch to sched_clock_register()
  ARM: OMAP1: Switch to sched_clock_register()
  ARM: msm: Switch to sched_clock_register()
  ARM: mmp: Switch to sched_clock_register()
  ARM: IXP4xx: Switch to sched_clock_register()
  ARM: integrator: Switch to sched_clock_register()
  ARM: imx: Switch to sched_clock_register()
  ARM: davinci: Switch to sched_clock_register()
  ARM: clps711x: Switch to sched_clock_register()
  ARM: timer-sp: Switch to sched_clock_register()

Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-12-06 08:05:55 -08:00
Denis Carikli 07f9e5cf8e Input: tsc2007 - add device tree support.
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-11-25 18:27:53 -08:00
Stephen Boyd b93767e3bd ARM: imx: 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.

Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-11-21 15:40:59 -08:00
Linus Torvalds 13509c3a9d Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c changes from Wolfram Sang:
 - new drivers for exynos5, bcm kona, and st micro
 - bigger overhauls for drivers mxs and rcar
 - typical driver bugfixes, cleanups, improvements
 - got rid of the superfluous 'driver' member in i2c_client struct This
   touches a few drivers in other subsystems.  All acked.

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
  i2c: bcm-kona: fix error return code in bcm_kona_i2c_probe()
  i2c: i2c-eg20t: do not print error message in syslog if no ACK received
  i2c: bcm-kona: Introduce Broadcom I2C Driver
  i2c: cbus-gpio: Fix device tree binding
  i2c: wmt: add missing clk_disable_unprepare() on error
  i2c: designware: add new ACPI IDs
  i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH
  i2c: exynos5: Remove incorrect clk_disable_unprepare
  i2c: i2c-st: Add ST I2C controller
  i2c: exynos5: add High Speed I2C controller driver
  i2c: rcar: fixup rcar type naming
  i2c: scmi: remove some bogus NULL checks
  i2c: sh_mobile & rcar: Enable the driver on all ARM platforms
  i2c: sh_mobile: Convert to clk_prepare/unprepare
  i2c: mux: gpio: use reg value for i2c_add_mux_adapter
  i2c: mux: gpio: use gpio_set_value_cansleep()
  i2c: Include linux/of.h header
  i2c: mxs: Fix PIO mode on i.MX23
  i2c: mxs: Rework the PIO mode operation
  i2c: mxs: distinguish i.MX23 and i.MX28 based I2C controller
  ...
2013-11-18 15:50:07 -08:00
Linus Torvalds 71f777ed50 ARM: SoC fixes for 3.13 merge window
A first set of batches of fixes for 3.13. The diffstat is large mostly
 because we're adding a defconfig for a family that's been lacking it, and
 there's some missing clock information added for i.MX and OMAP.
 
 The at91 new code is around dealing with RTC/RTT reset at boot to fix possible
 hangs due to pending wakeup interrupts coming in during early boot.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A first set of batches of fixes for 3.13.  The diffstat is large
  mostly because we're adding a defconfig for a family that's been
  lacking it, and there's some missing clock information added for i.MX
  and OMAP.

  The at91 new code is around dealing with RTC/RTT reset at boot to fix
  possible hangs due to pending wakeup interrupts coming in during early
  boot"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  ARM: OMAP2+: Fix build for dra7xx without omap4 and 5
  ARM: OMAP2+: omap_device: maintain sane runtime pm status around suspend/resume
  doc: devicetree: Add bindings documentation for omap-des driver
  ARM: dts: doc: Document missing compatible property for omap-sham driver
  ARM: OMAP3: Beagle: fix return value check in beagle_opp_init()
  ARM: at91: fix hanged boot due to early rtt-interrupt
  ARM: at91: fix hanged boot due to early rtc-interrupt
  video: exynos_mipi_dsim: Remove unused variable
  ARM: highbank: only select errata 764369 if SMP
  ARM: sti: only select errata 764369 if SMP
  ARM: tegra: init fuse before setting reset handler
  ARM: vt8500: add defconfig for v6/v7 chips
  ARM: integrator_cp: Set LCD{0,1} enable lines when turning on CLCD
  ARM: OMAP: devicetree: fix SPI node compatible property syntax items
  pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed
  ARM: OMAP2+: smsc911x: fix return value check in gpmc_smsc911x_init()
  MAINTAINERS: drop discontinued mailing list
  ARM: dts: i.MX51: Fix OTG PHY clock
  ARM: imx: set up pllv3 POWER and BYPASS sequentially
  ARM: imx: pllv3 needs relock in .set_rate() call
  ...
2013-11-16 12:45:55 -08:00
Linus Torvalds f9300eaaac ACPI and power management updates for 3.13-rc1
- New power capping framework and the the Intel Running Average Power
    Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.
 
  - Addition of the in-kernel switching feature to the arm_big_little
    cpufreq driver from Viresh Kumar and Nicolas Pitre.
 
  - cpufreq support for iMac G5 from Aaro Koskinen.
 
  - Baytrail processors support for intel_pstate from Dirk Brandewie.
 
  - cpufreq support for Midway/ECX-2000 from Mark Langsdorf.
 
  - ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.
 
  - ACPI power management support for the I2C and SPI bus types from
    Mika Westerberg and Lv Zheng.
 
  - cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
    Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.
 
  - cpufreq drivers updates (mostly fixes and cleanups) from Viresh Kumar,
    Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz Majewski,
    Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.
 
  - intel_pstate updates from Dirk Brandewie and Adrian Huang.
 
  - ACPICA update to version 20130927 includig fixes and cleanups and
    some reduction of divergences between the ACPICA code in the kernel
    and ACPICA upstream in order to improve the automatic ACPICA patch
    generation process.  From Bob Moore, Lv Zheng, Tomasz Nowicki,
    Naresh Bhat, Bjorn Helgaas, David E Box.
 
  - ACPI IPMI driver fixes and cleanups from Lv Zheng.
 
  - ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani,
    Zhang Yanfei, Rafael J Wysocki.
 
  - Conversion of the ACPI AC driver to the platform bus type and
    multiple driver fixes and cleanups related to ACPI from Zhang Rui.
 
  - ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
    Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.
 
  - Fixes and cleanups and new blacklist entries related to the ACPI
    video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
    Kirill Tkhai.
 
  - cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.
 
  - cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
    Bartlomiej Zolnierkiewicz, Prarit Bhargava.
 
  - devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.
 
  - Operation Performance Points (OPP) core updates from Nishanth Menon.
 
  - Runtime power management core fix from Rafael J Wysocki and update
    from Ulf Hansson.
 
  - Hibernation fixes from Aaron Lu and Rafael J Wysocki.
 
  - Device suspend/resume lockup detection mechanism from Benoit Goby.
 
  - Removal of unused proc directories created for various ACPI drivers
    from Lan Tianyu.
 
  - ACPI LPSS driver fix and new device IDs for the ACPI platform scan
    handler from Heikki Krogerus and Jarkko Nikula.
 
  - New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.
 
  - Assorted fixes and cleanups related to ACPI from Andy Shevchenko,
    Al Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
    Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
    Liu Chuansheng.
 
  - Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
    Jean-Christophe Plagniol-Villard.
 
 /
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Merge tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael J Wysocki:

 - New power capping framework and the the Intel Running Average Power
   Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.

 - Addition of the in-kernel switching feature to the arm_big_little
   cpufreq driver from Viresh Kumar and Nicolas Pitre.

 - cpufreq support for iMac G5 from Aaro Koskinen.

 - Baytrail processors support for intel_pstate from Dirk Brandewie.

 - cpufreq support for Midway/ECX-2000 from Mark Langsdorf.

 - ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.

 - ACPI power management support for the I2C and SPI bus types from Mika
   Westerberg and Lv Zheng.

 - cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
   Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.

 - cpufreq drivers updates (mostly fixes and cleanups) from Viresh
   Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz
   Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.

 - intel_pstate updates from Dirk Brandewie and Adrian Huang.

 - ACPICA update to version 20130927 includig fixes and cleanups and
   some reduction of divergences between the ACPICA code in the kernel
   and ACPICA upstream in order to improve the automatic ACPICA patch
   generation process.  From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh
   Bhat, Bjorn Helgaas, David E Box.

 - ACPI IPMI driver fixes and cleanups from Lv Zheng.

 - ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang
   Yanfei, Rafael J Wysocki.

 - Conversion of the ACPI AC driver to the platform bus type and
   multiple driver fixes and cleanups related to ACPI from Zhang Rui.

 - ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
   Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.

 - Fixes and cleanups and new blacklist entries related to the ACPI
   video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
   Kirill Tkhai.

 - cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.

 - cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
   Bartlomiej Zolnierkiewicz, Prarit Bhargava.

 - devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.

 - Operation Performance Points (OPP) core updates from Nishanth Menon.

 - Runtime power management core fix from Rafael J Wysocki and update
   from Ulf Hansson.

 - Hibernation fixes from Aaron Lu and Rafael J Wysocki.

 - Device suspend/resume lockup detection mechanism from Benoit Goby.

 - Removal of unused proc directories created for various ACPI drivers
   from Lan Tianyu.

 - ACPI LPSS driver fix and new device IDs for the ACPI platform scan
   handler from Heikki Krogerus and Jarkko Nikula.

 - New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.

 - Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al
   Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
   Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
   Liu Chuansheng.

 - Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
   Jean-Christophe Plagniol-Villard.

* tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (386 commits)
  cpufreq: conservative: fix requested_freq reduction issue
  ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines
  PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()
  ACPI / event: remove unneeded NULL pointer check
  Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1"
  ACPI / video: Quirk initial backlight level 0
  ACPI / video: Fix initial level validity test
  intel_pstate: skip the driver if ACPI has power mgmt option
  PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
  ACPI / hotplug: Do not execute "insert in progress" _OST
  ACPI / hotplug: Carry out PCI root eject directly
  ACPI / hotplug: Merge device hot-removal routines
  ACPI / hotplug: Make acpi_bus_hot_remove_device() internal
  ACPI / hotplug: Simplify device ejection routines
  ACPI / hotplug: Fix handle_root_bridge_removal()
  ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug
  ACPI / scan: Start matching drivers after trying scan handlers
  ACPI: Remove acpi_pci_slot_init() headers from internal.h
  ACPI / blacklist: fix name of ThinkPad Edge E530
  PowerCap: Fix build error with option -Werror=format-security
  ...

Conflicts:
	arch/arm/mach-omap2/opp.c
	drivers/Kconfig
	drivers/spi/spi.c
2013-11-14 13:41:48 +09:00
Shawn Guo 43c9b9e8a4 ARM: imx: set up pllv3 POWER and BYPASS sequentially
Currently, POWER and BYPASS bits are set up in a single write to pllv3
register.  This causes problem occasionally from the IPU/HDMI testing.
Let's follow FSL BSP code to set up POWER bit, relock, and then BYPASS
sequentially.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:45 +08:00
Shawn Guo bc3b84da8a ARM: imx: pllv3 needs relock in .set_rate() call
The pllv3 nees relock not only when powering up but also when rate
changes.  The patch creates a helper function clk_pllv3_wait_lock() and
moves the relock code from clk_pllv3_prepare() into there, so that
both .prepare() and .set_rate() hooks of pllv3 can call into the helper
for relocking.

Since relock is only needed when PLL is powered up while clk_set_rate()
could be called before clk is prepared, we need to add a check in
clk_pllv3_wait_lock() to skip the relock if PLL is not powered.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:44 +08:00
Shawn Guo 322503a157 ARM: imx: add sleep for pllv3 relock
The pllv3 relock time varies in the range of 50us ~ 500us, depending on
the specific PLL type, e.g. 50us for ARM PLL and 450us for Audio/Video
PLL.  Let's add a usleep_range() call instead of doing busy wait during
relock.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:44 +08:00
Lothar Waßmann ec9de6cd95 ARM: imx6q: add missing sentinel to divider table
The clk_enet_ref_table[] is missing a final empty entry as end of list
marker. Also make the existing markers more obvious.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:44 +08:00
Shawn Guo 5d48217210 ARM: imx: v7_cpu_resume() is needed by imx6sl build
Building a kernel with the following options,

  CONFIG_SMP=n
  CONFIG_PM=y
  CONFIG_SOC_IMX6SL=y
  CONFIG_SOC_IMX6Q=n

we will see the build error below.

  arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter':
  platform-spi_imx.c:(.text+0x2648): undefined reference to `v7_cpu_resume'
  make[1]: *** [vmlinux] Error 1

This is because that v7_cpu_resume() implemented in headsmp.S is also
needed by imx6sl build.  Let's build headsmp.S for CONFIG_SOC_IMX6SL as
well.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:43 +08:00
Shawn Guo 2c11b57a8a ARM: imx: improve mxc_restart() on the SRC bit writes
The current comment in the code does not make it clear why the double writes
on SRC bit is needed.  Let's quote the errata to get it clear.  Also, to
ensure there are at least 2 writes happen in the same one 32kHz period,
we actually need 3 writes.  Let's add the third one.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:43 +08:00
Shawn Guo b6e23bb63f ARM: imx: remove imx_src_prepare_restart() call
There is ~10% possibility that the following emergency restart command
fails to reboot imx6q.

$ echo b > /proc/sysrq-trigger

The IMX restart routine mxc_restart() assumes that it will always run on
primary core, and will call imx_src_prepare_restart() to disable
secondary cores in order to get them come to online in the following
boot.  However, the assumption is only true for normal kernel_restart()
case where migrate_to_reboot_cpu() will be called to migrate to primary
core, but not necessarily true for emergency_restart() case.  So when
emergency_restart() calls into mxc_restart() on any secondary core,
system will hang immediately once imx_src_prepare_restart() is called
to disabled secondary cores.  Since emergency_restart() is defined as a
function that is safe to call in interrupt context, we cannot just call
migrate_to_reboot_cpu() to fix the issue.

Fortunately, we just found that the issue can be fixed at imx6q platform
level.  We used to call imx_src_prepare_restart() to disable all
secondary cores before resetting hardware.  Otherwise, the secondary
will fail come to online in the reboot.  However, we recently found that
after commit 6050d18 (ARM: imx: reset core along with enable/disable
operation) comes to play, we do not need to reset the secondary cores
any more.  That said, mxc_restart() now can run on any core to reboot
the system, as long as we remove the imx_src_prepare_restart() call from
mxc_restart().

So let's simply remove imx_src_prepare_restart() call to fix the above
emergency restart failure.

Reported-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:43 +08:00
Jiada Wang 9b3d423707 ARM: i.MX6q: fix the wrong parent of can_root clock
instead of pll3_usb_otg the parent of can_root clock
should be pll3_60m.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-11-11 22:58:42 +08:00
Linus Torvalds aac59e3efc ARM: SoC platform changes for 3.13
New and updated SoC support. Among the things new for this release are:
 
 - More support for the AM33xx platforms from TI
 - Tegra 124 support, and some updates to older tegra families as well
 - imx cleanups and updates across the board
 - A rename of Broadcom's Mobile platforms which were introduced as ARCH_BCM,
   and turned out to be too broad a name. New name is ARCH_BCM_MOBILE.
 - A whole bunch of updates and fixes for integrator, making the platform code
   more modern and switches over to DT-only booting.
 - Support for two new Renesas shmobile chipsets. Next up for them is more work
   on consolidation instead of introduction of new non-multiplatform SoCs, we're
   all looking forward to that!
 - Misc cleanups for older Samsung platforms, some Allwinner updates, etc.
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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 and updated SoC support.  Among the things new for this release
  are:

   - More support for the AM33xx platforms from TI
   - Tegra 124 support, and some updates to older tegra families as well
   - imx cleanups and updates across the board
   - A rename of Broadcom's Mobile platforms which were introduced as
     ARCH_BCM, and turned out to be too broad a name.  New name is
     ARCH_BCM_MOBILE.
   - A whole bunch of updates and fixes for integrator, making the
     platform code more modern and switches over to DT-only booting.
   - Support for two new Renesas shmobile chipsets.  Next up for them is
     more work on consolidation instead of introduction of new
     non-multiplatform SoCs, we're all looking forward to that!
   - Misc cleanups for older Samsung platforms, some Allwinner updates,
     etc"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (159 commits)
  ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config
  ARM: bcm_defconfig: Run "make savedefconfig"
  ARM: bcm281xx: Add ARCH Timers to config
  rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm)
  ARM: vexpress: Enable platform-specific options in defconfig
  ARM: vexpress: Make defconfig work again
  ARM: sunxi: remove .init_time hooks
  ARM: imx: enable suspend for imx6sl
  ARM: imx: ensure dsm_request signal is not asserted when setting LPM
  ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
  ARM: imx6q: move low-power code out of clock driver
  ARM: imx: drop extern with function prototypes in common.h
  ARM: imx: reset core along with enable/disable operation
  ARM: imx: do not return from imx_cpu_die() call
  ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING
  ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options
  ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO
  ARM: imx: replace imx6q_restart() with mxc_restart()
  ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
  ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
  ...
2013-11-11 16:49:45 +09:00
Nishanth Menon e4db1c7439 PM / OPP: rename header to linux/pm_opp.h
Since Operating Performance Points (OPP) functions are specific
to device specific power management, be specific and rename opp.h
to pm_opp.h

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-25 22:33:23 +02:00
Nishanth Menon 5d4879cda6 PM / OPP: rename functions to dev_pm_opp*
Since Operating Performance Points (OPP) functions are specific to
device specific power management, be specific and rename opp_*
accessors in OPP library with dev_pm_opp_* equivalent.

Affected functions are:
 opp_get_voltage
 opp_get_freq
 opp_get_opp_count
 opp_find_freq_exact
 opp_find_freq_floor
 opp_find_freq_ceil
 opp_add
 opp_enable
 opp_disable
 opp_get_notifier
 opp_init_cpufreq_table
 opp_free_cpufreq_table

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-25 22:33:23 +02:00
Shawn Guo 9ba64fe3eb ARM: imx: enable suspend for imx6sl
The imx6sl low power mode implementation inherits imx6q/dl one,
and pm-imx6q.c can just work for imx6sl with some minor updates.
Let's enable imx6sl suspend support by reusing pm-imx6q.c and use
cpu_is_imxXX() to handle the those minor differences between imx6sl
and imx6q/dl.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:39:27 +08:00
Shawn Guo d48866fefd ARM: imx: ensure dsm_request signal is not asserted when setting LPM
There is a defect in imx6 LPM design.  When SW tries to enter low power
mode with following sequence, the chip will enter low power mode before
A9 CPU execute WFI instruction:

1. Set CCM_CLPCR[1:0] to 2'b00;
2. ARM CPU enters WFI;
3. ARM CPU wakeup from an interrupt event, which is masked by GPC or not
   visible to GPC, such as interrupt from local timer;
4. Set CCM_CLPCR[1:0] to 2'b01 or 2'b10;
5. ARM CPU execute WFI.

Before the last step, the chip will enter WAIT mode if CCM_CLPCR[1:0] is
set to 2'b01, or enter STOP mode if CCM_CLPCR[1:0] is set to 2'b10.

The patch implements a recommended workaround for this issue.

1. SW triggers irq #32(IOMUX) to be always pending manually by setting
   IOMUX_GPR1_GINT bit;
2. SW should then unmask it in GPC before setting CCM LPM;
3. SW should mask it right after CCM LPM is set (bit0-1 of CCM_CLPCR).

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:39:26 +08:00
Shawn Guo 1d674a73c5 ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
The WB and RBC configuration calls are currently made from
imx6q_set_lpm() for WAIT_CLOCKED and WAIT_UNCLOCKED mode with a simple
state tracking.  This becomes unnecessary since we can make the calls
from imx6q_pm_enter() directly now for suspend.

More importantly, the current call of imx6q_enable_wb() from
imx6q_set_lpm() is buggy.  The CLPCR register bits configured by
imx6q_enable_wb() will get lost, because imx6q_set_lpm() caches the same
register and write it back at the end of the function.  That's why the
imx6dl suspend/resume does not work currently - the wakeup from suspend
triggers a reset on imx6dl.

Moves the WB and RBC calls into imx6q_pm_enter() to save the state
tracking and fixes above bug, so that suspend/resume can start working
on imx6dl.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:39:25 +08:00
Shawn Guo 9e8147bb5e ARM: imx6q: move low-power code out of clock driver
The LPM (Low Power Mode) code that currently sits in imx6q clock driver
will be reused by imx6sl.  Let's move it into pm-imx6q.c, so that we
can keep clock driver SoC specific and reuse pm-imx6q.c on imx6sl.

In order to avoid adding another ioremap for CCM block,
imx6q_pm_set_ccm_base() is created to let clock driver set up ccm_base
for pm code.

During the move, the unused CCGR macros get removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:39:24 +08:00
Shawn Guo 803648db20 ARM: imx: drop extern with function prototypes in common.h
Since commit 70dc8a4 (checkpatch: warn when using extern with function
prototypes in .h files), we will get checkpatch warning when updating
common.h following the existing convention which has extern for function
prototypes.

Let's change the convention to not use extern with function prototypes
in this header.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:39:14 +08:00
Shawn Guo 6050d181a4 ARM: imx: reset core along with enable/disable operation
From hotplug stress test result, resetting core during enable/disable
operation can improve cpu hotplug stability.  So let's set
SRC reset bit in imx_enable_cpu() for the core when its enable bit is
accessed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:37:32 +08:00
Shawn Guo fcd75f921d ARM: imx: do not return from imx_cpu_die() call
When imx_cpu_die() is being called, the cpu should never return from the
call but just in WFI and wait for hardware to take it down.  So let's
do cpu_do_idle() repeatly in the call.  Doing this help improve the
relibility of hotplug operation.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:37:31 +08:00
Shawn Guo 87a84b6982 ARM: imx: replace imx6q_restart() with mxc_restart()
The imx6q_restart() works fine with normal reboot but will run into
problem with emergency reboot like sysrq-b.  In that case, of_iomap()
gets called from interrupt context and hence triggers the BUG_ON in
__get_vm_area_node().

Actually, since commit c1e31d1 (ARM: imx: create
mxc_arch_reset_init_dt() for DT boot), imx6q/dl should try to use
mxc_restart() by calling mxc_arch_reset_init_dt() beforehand, where
things like of_iomap() can be done.

The patch updates mxc_restart() a little bit to get it work for imx6q/dl
and kill imx6q_restart() completely.

Reported-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:36:53 +08:00
Fabio Estevam 6fc6c93eb6 ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
As mx53 is a dt-only SoC, we should retrieve the iomuxc base address from the
device tree, instead of using the old MX53_IO_ADDRESS method.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:35:57 +08:00
Fabio Estevam 823b2fe25a ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
As mx53 is a dt-only SoC, we should retrieve the tzic base address from the
device tree, instead of using the old MX53_IO_ADDRESS method.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:35:56 +08:00
Fabio Estevam bfcc7bcef5 ARM: mach-imx: clk-imx51-imx53: Retrieve base address and irq from dt
As mx53 is a dt-only SoC, we should retrieve the gpt base address and irq
from the device tree, instead of using the old MX53_IO_ADDRESS method.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:27:55 +08:00
Thierry Reding 1ddd35be8b ARM: imx: Include linux/err.h
The IS_ERR() macro is defined in the linux/err.h header file, so include
it explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:15:12 +08:00
Sean Cross 74b8031307 ARM: imx6q: clock and Kconfig update for PCIe support
Update imx6q clock initialization and Kconfig for PCIe support.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:15:08 +08:00
Sean Cross bf22172158 ARM: imx: Add LVDS general-purpose clocks to i.MX6Q
The i.MX6 has two general-purpose LVDS clocks that can be driven
from a variety of sources.  This patch adds a mux and a gate for
both of these clocks.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:15:07 +08:00
Shawn Guo 7655fe53f4 ARM: imx: remove stale mx53_display_revision() declaration
The mx53_display_revision() declaration in common.h is stale and used
nowhere, so remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:15:06 +08:00
Shawn Guo a28875462b ARM: imx6: report soc info via soc device
The patch enables soc bus infrastructure and adds a function
imx_soc_device_init() to report soc info via soc device interface for
imx6qdl and imx6sl.  With the support, user space can get soc related
info by looking at sysfs like below.

  $ cat /sys/devices/soc0/machine
  Freescale i.MX6 Quad SABRE Smart Device Board
  $ cat /sys/devices/soc0/family
  Freescale i.MX
  $ cat /sys/devices/soc0/soc_id
  i.MX6Q
  $ cat /sys/devices/soc0/revision
  1.2

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:14:54 +08:00
Shawn Guo d8ce823fb3 ARM: imx: use imx_init_revision_from_anatop() on imx6sl
Add imx6sl support into imx_init_revision_from_anatop(), so that it can
be used to initialize cpu type and revision on imx6sl.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:13:13 +08:00
Shawn Guo f1c6f31472 ARM: imx: add a common function to initialize revision from anatop
The patch creates a common function imx_init_revision_from_anatop() by
merging imx6q_init_revision() and imx_anatop_get_digprog(), so that any
SoC that encodes revision info in anatop can use it to initialize
revision.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:13:12 +08:00
Shawn Guo 3f75978b37 ARM: imx6q: use common soc revision helpers
It calls imx_set_soc_revision() to set up soc revision in
imx6q_init_revision(), and replaces all the occurrences of
imx6q_revision() with common helper imx_get_soc_revision().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:12:51 +08:00
Shawn Guo bfefdff8f9 ARM: imx: add soc revision helper functions
Similar to what we do for cpu type, the patch adds helper functions
imx_set_soc_revision() and imx_get_soc_revision() to maintain
imx_soc_revision in cpu.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:11:08 +08:00
Michael Opdenacker 4c1dd3e5ed ARM: imx: remove IRQF_DISABLED
This flag is a NOOP since 2.6.35 and can be removed.

This is an update for 3.11 of a patch already sent for 3.10

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:11:05 +08:00
Fugang Duan a9aec30dcf ARM: imx6sl: config iomux-gpr1 to select clock for fec
Config iomux-gpr1 to select clock source for fec system clock.
Clear gpr1[14], gpr1[18-17] bit to select the fec clock source
from internal anatop PLL.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:11:04 +08:00
Nicolin Chen 64990a4314 ARM: imx6q: Add pll4_audio_div to clock tree
There's a pll4_audio_div clock, an extra divider for pll4, missing
in current clock tree, thus add it.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:11:02 +08:00
Shawn Guo 6886530bab Merge remote-tracking branch 'shesselba/clk-of-init-v2_for-3.13' into imx/soc 2013-10-21 09:10:56 +08:00
Uwe Kleine-König 07d8a49c26 ARM: drop explicit selection of HAVE_CLK and CLKDEV_LOOKUP
CLKDEV_LOOKUP selects HAVE_CLK and COMMON_CLK selects CLKDEV_LOOKUP. So
all symbols that select at least two of these symbols can be simplified.

For imx, omap2 and ux500 some rearrangements were necessary before the
simplification.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-07 10:41:32 -07:00
Olof Johansson c884357ec6 Merge branch 'clk-of-init-v2_for-3.13' of https://github.com/shesselba/linux-dove into next/cleanup
From Sebastian Hasselbarth:

This is a patch set based on an RFC [1][2] sent earlier to provide
a common arch/arm init for DT clock providers. Currently, the call to
of_clk_init(NULL) to initialize DT clock providers is spread among several
mach-dirs. Since most machs require DT clocks initialized before timers,
no initcall can be used.

By adding of_clk_init(NULL) to arch/arm time_init(), we can remove all
mach-specific .init_time hooks that basically called of_clk_init and
clocksource_of_init.

In contrast to the RFC version, of_clk_init(NULL) is now only called if
no custom .init_time callback is set. This allows some machs to still
call clock init themselves, as not all can be converted now. Therefore,
this patch sets drops conversion of mach-mvebu and mach-zynq. New machs
that were introduced with v3.12-rc1 are also converted, except mach-u300
that requires clocks before irqs.

* 'clk-of-init-v2_for-3.13' of https://github.com/shesselba/linux-dove: (29 commits)
  ARM: vt8500: remove custom .init_time hook
  ARM: vexpress: remove custom .init_time hook
  ARM: tegra: remove custom .init_time hook
  ARM: sunxi: remove custom .init_time hook
  ARM: sti: remove custom .init_time hook
  ARM: socfpga: remove custom .init_time hook
  ARM: rockchip: remove custom .init_time hook
  ARM: prima2: remove custom .init_time hook
  ARM: nspire: remove custom .init_time hook
  ARM: nomadik: remove custom .init_time hook
  ARM: mxs: remove custom .init_time hook
  ARM: kirkwood: remove custom .init_time hook
  ARM: imx: remove custom .init_time hook
  ARM: highbank: remove custom .init_time hook
  ARM: exynos: remove custom .init_time hook
  ARM: dove: remove custom .init_time hook
  ARM: bcm2835: remove custom .init_time hook
  ARM: bcm: provide common arch init for DT clocks
  ARM: call of_clk_init from default time_init handler
  ARM: vt8500: prepare for arch-wide .init_time callback
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-07 09:47:31 -07:00
Vivien Didelot 25f73ed5c6 misc: (at24) move header to linux/platform_data/
This patch moves the at24.h header from include/linux/i2c to
include/linux/platform_data and updates existing support accordingly.

It also fixes the following checkpatch warning:

    WARNING: please, no space before tabs
    #436: FILE: include/linux/platform_data/at24.h:31:
    + * ^Iu8 *mac_addr = ethernet_pdata->mac_addr;$

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-09-30 06:02:34 +02:00
Sebastian Hesselbarth 4d9d18a560 ARM: imx: 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: Shawn Guo <shawn.guo@linaro.org>
2013-09-29 21:09:30 +02:00
Linus Torvalds 2457aaf73a ACPI and power management fixes for 3.12-rc2
1) Four fixes for cpufreq regressions introduced by the changes that
     removed Device Tree parsing for CPU device nodes from cpufreq
     drivers from Sudeep KarkadaNagesha.
 
  2) Two fixes for recent cpufreq regressions introduced by changes
     related to the preservation of sysfs attributes over system
     suspend/resume cycles from Viresh Kumar.
 
  3) Fix for ACPI-based wakeup signaling in the PCI subsystem that
     fails to stop PME polling for devices put into the D3cold power
     state from Rafael J Wysocki.
 
  4) Fix for bad interactions between cpufreq and udev on systems
     supporting intel_pstate where acpi-cpufreq is available as well
     from Yinghai Lu.
 
 /
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Merge tag 'pm+acpi-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:

 1) Four fixes for cpufreq regressions introduced by the changes that
    removed Device Tree parsing for CPU device nodes from cpufreq
    drivers from Sudeep KarkadaNagesha.

 2) Two fixes for recent cpufreq regressions introduced by changes
    related to the preservation of sysfs attributes over system
    suspend/resume cycles from Viresh Kumar.

 3) Fix for ACPI-based wakeup signaling in the PCI subsystem that
    fails to stop PME polling for devices put into the D3cold power
    state from Rafael J Wysocki.

 4) Fix for bad interactions between cpufreq and udev on systems
    supporting intel_pstate where acpi-cpufreq is available as well
    from Yinghai Lu.

* tag 'pm+acpi-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: return EEXIST instead of EBUSY for second registering
  PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup
  ARM: shmobile: change dev_id to cpu0 while registering cpu clock
  ARM: i.MX: change dev_id to cpu0 while registering cpu clock
  cpufreq: imx6q-cpufreq: assign cpu_dev correctly to cpu0 device
  cpufreq: cpufreq-cpu0: assign cpu_dev correctly to cpu0 device
  cpufreq: unlock correct rwsem while updating policy->cpu
  cpufreq: Clear policy->cpus bits in __cpufreq_remove_dev_finish()
2013-09-20 15:17:14 -07:00
Sudeep KarkadaNagesha 3d10a887de ARM: i.MX: change dev_id to cpu0 while registering cpu clock
Currently all clkdev registration use "cpufreq-cpu0.0" as dev_id
for cpu clock which refers to virtual platform device. It needs to
be "cpu0" instead which is actual cpu0 device id.

This patch changes the dev_id from "cpufreq-cpu0.0" to "cpu0".

Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-09-19 03:53:44 +02:00
Sudeep KarkadaNagesha b494b48dac cpufreq: imx6q-cpufreq: assign cpu_dev correctly to cpu0 device
Commit cdc58d602d "cpufreq: imx6q-cpufreq:
remove device tree parsing for cpu nodes" assumed the pdev->dev is set to
cpu0 device in the platform code. But it actually points to the virtual
cpufreq-cpu0 platform device which is not present in the device tree.
Most of the information needed by cpufreq is stored in cpu0 DT node.
So cpu_dev must point to cpu0 device.

This patch fixes the wrong assignment to cpu_dev.

Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-09-19 03:53:43 +02:00
Jason Liu 9779f0e1d7 ARM: imx: i.mx6d/q: disable the double linefill feature of PL310
The L2 cache controller(PL310) version on the i.MX6D/Q is r3p1-50rel0
The L2 cache controller(PL310) version on the i.MX6DL/SOLO/SL is r3p2
But according to ARM PL310 errata: 752271
ID: 752271: Double linefill feature can cause data corruption
Fault Status: Present in: r3p0, r3p1, r3p1-50rel0. Fixed in r3p2
Workaround: The only workaround to this erratum is to disable the
double linefill feature. This is the default behavior.

without this patch, you will meet the following error when run the
memtester application at: http://pyropus.ca/software/memtester/

FAILURE: 0x00100000 != 0x00200000 at offset 0x01365664.
FAILURE: 0x00100000 != 0x00200000 at offset 0x01365668.
FAILURE: 0x00100000 != 0x00200000 at offset 0x0136566c.
FAILURE: 0x00100000 != 0x00200000 at offset 0x01365670.
FAILURE: 0x00100000 != 0x00200000 at offset 0x01365674.
FAILURE: 0x00100000 != 0x00200000 at offset 0x01365678.

Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-17 10:04:24 +08:00
Fabio Estevam 5d5248a6d1 ARM: mach-imx: clk-imx51-imx53: Fix 'spdif1_pred' clock registration
Since commit beb2d1c1ba (ARM i.MX5: Add S/PDIF clocks), the following clock
error appears on mx51:

TrustZone Interrupt Controller (TZIC) initialized
i.MX51 clk 180: register failed with -17
i.MX5 clk 180: register failed with -17
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
CPU identified as i.MX51, silicon rev 3.0
...

Clock 180 corresponds to 'spdif1_podf' and this clock is getting registered
twice.

Fix it, by properly registering the 'spdif1_pred' clock, which should not
reference 'spdif1_podf'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-17 10:04:24 +08:00
Shawn Guo bdb1b5f2dd ARM: imx: initialize clk_init_data.flags for clk-fixup-mux
The clk_init_data.flags of clk-fixup-mux is left there without
initialization.  It may hold some random data and cause clock framework
interpret the clock in an unexpected way.  At least on imx6sl, the
following division by zero error with sched_clock is seen because of it.

Division by zero in kernel.
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc3+ #19
Backtrace:
[<80011af0>] (dump_backtrace+0x0/0x10c) from [<80011c90>] (show_stack+0x18/0x1c)
 r6:3b9aca00 r5:00000020 r4:00000000 r3:00000000
[<80011c78>] (show_stack+0x0/0x1c) from [<8055e02c>] (dump_stack+0x78/0x94)
[<8055dfb4>] (dump_stack+0x0/0x94) from [<80011924>] (__div0+0x18/0x20)
 r4:00000000 r3:00000000
[<8001190c>] (__div0+0x0/0x20) from [<8026c408>] (Ldiv0_64+0x8/0x18)
[<8006330c>] (clocks_calc_mult_shift+0x0/0xf8) from [<8072f604>] (setup_sched_clock+0x88/0x1f0)
[<8072f57c>] (setup_sched_clock+0x0/0x1f0) from [<8071ad48>] (mxc_timer_init+0xe8/0x17c)
[<8071ac60>] (mxc_timer_init+0x0/0x17c) from [<807290b0>] (imx6sl_clocks_init+0x1db8/0x1dc0)
 r8:807a9ca4 r7:00000000 r6:80777564 r5:8100c1f4 r4:c0820000
[<807272f8>] (imx6sl_clocks_init+0x0/0x1dc0) from [<807420ac>] (of_clk_init+0x40/0x6c)
[<8074206c>] (of_clk_init+0x0/0x6c) from [<807290cc>] (imx6sl_timer_init+0x14/0x18)
 r5:807a8e80 r4:ffffffff
[<807290b8>] (imx6sl_timer_init+0x0/0x18) from [<80716e1c>] (time_init+0x24/0x34)
[<80716df8>] (time_init+0x0/0x34) from [<80713738>] (start_kernel+0x1b0/0x310)
[<80713588>] (start_kernel+0x0/0x310) from [<80008074>] (0x80008074)
 r7:80770b08 r6:80754cd4 r5:8076c8c4 r4:10c53c7d
sched_clock: 32 bits at 0 Hz, resolution 0ns, wraps every 0ms

Fix the bug by initializing init.flags as zero.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-17 10:04:23 +08:00
Linus Torvalds ec5b103ecf Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
 "This pull brings:
   - Andy's DW driver updates
   - Guennadi's sh driver updates
   - Pl08x driver fixes from Tomasz & Alban
   - Improvements to mmp_pdma by Daniel
   - TI EDMA fixes by Joel
   - New drivers:
     - Hisilicon k3dma driver
     - Renesas rcar dma driver
  - New API for publishing slave driver capablities
  - Various fixes across the subsystem by Andy, Jingoo, Sachin etc..."

* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (94 commits)
  dma: edma: Remove limits on number of slots
  dma: edma: Leave linked to Null slot instead of DUMMY slot
  dma: edma: Find missed events and issue them
  ARM: edma: Add function to manually trigger an EDMA channel
  dma: edma: Write out and handle MAX_NR_SG at a given time
  dma: edma: Setup parameters to DMA MAX_NR_SG at a time
  dmaengine: pl330: use dma_set_max_seg_size to set the sg limit
  dmaengine: dma_slave_caps: remove sg entries
  dma: replace devm_request_and_ioremap by devm_ioremap_resource
  dma: ste_dma40: Fix potential null pointer dereference
  dma: ste_dma40: Remove duplicate const
  dma: imx-dma: Remove redundant NULL check
  dma: dmagengine: fix function names in comments
  dma: add driver for R-Car HPB-DMAC
  dma: k3dma: use devm_ioremap_resource() instead of devm_request_and_ioremap()
  dma: imx-sdma: Staticize sdma_driver_data structures
  pch_dma: Add MODULE_DEVICE_TABLE
  dmaengine: PL08x: Add cyclic transfer support
  dmaengine: PL08x: Fix reading the byte count in cctl
  dmaengine: PL08x: Add support for different maximum transfer size
  ...
2013-09-10 13:37:36 -07:00
Linus Torvalds bef4a0ab98 The common clk framework changes for 3.12 are dominated by clock driver
patches, both new drivers and fixes to existing. A high percentage of
 these are for Samsung platforms like Exynos. Core framework fixes and
 some new features like automagical clock re-parenting round out the
 patches.
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Merge tag 'clk-for-linus-3.12' of git://git.linaro.org/people/mturquette/linux

Pull clock framework changes from Michael Turquette:
 "The common clk framework changes for 3.12 are dominated by clock
  driver patches, both new drivers and fixes to existing.  A high
  percentage of these are for Samsung platforms like Exynos.  Core
  framework fixes and some new features like automagical clock
  re-parenting round out the patches"

* tag 'clk-for-linus-3.12' of git://git.linaro.org/people/mturquette/linux: (102 commits)
  clk: only call get_parent if there is one
  clk: samsung: exynos5250: Simplify registration of PLL rate tables
  clk: samsung: exynos4: Register PLL rate tables for Exynos4x12
  clk: samsung: exynos4: Register PLL rate tables for Exynos4210
  clk: samsung: exynos4: Reorder registration of mout_vpllsrc
  clk: samsung: pll: Add support for rate configuration of PLL46xx
  clk: samsung: pll: Use new registration method for PLL46xx
  clk: samsung: pll: Add support for rate configuration of PLL45xx
  clk: samsung: pll: Use new registration method for PLL45xx
  clk: samsung: exynos4: Rename exynos4_plls to exynos4x12_plls
  clk: samsung: exynos4: Remove checks for DT node
  clk: samsung: exynos4: Remove unused static clkdev aliases
  clk: samsung: Modify _get_rate() helper to use __clk_lookup()
  clk: samsung: exynos4: Use separate aliases for cpufreq related clocks
  clocksource: samsung_pwm_timer: Get clock from device tree
  ARM: dts: exynos4: Specify PWM clocks in PWM node
  pwm: samsung: Update DT bindings documentation to cover clocks
  clk: Move symbol export to proper location
  clk: fix new_parent dereference before null check
  clk: wm831x: Initialise wm831x pointer on init
  ...
2013-09-09 15:49:04 -07:00
Linus Torvalds b4b50fd78b ARM: SoC platform changes for 3.12
This branch contains mostly additions and changes to platform enablement
 and SoC-level drivers. Since there's sometimes a dependency on device-tree
 changes, there's also a fair amount of those in this branch.
 
 Pieces worth mentioning are:
 
 - Mbus driver for Marvell platforms, allowing kernel configuration
   and resource allocation of on-chip peripherals.
 - Enablement of the mbus infrastructure from Marvell PCI-e drivers.
 - Preparation of MSI support for Marvell platforms.
 - Addition of new PCI-e host controller driver for Tegra platforms
 - Some churn caused by sharing of macro names between i.MX 6Q and 6DL
   platforms in the device tree sources and header files.
 - Various suspend/PM updates for Tegra, including LP1 support.
 - Versatile Express support for MCPM, part of big little support.
 - Allwinner platform support for A20 and A31 SoCs (dual and quad Cortex-A7)
 - OMAP2+ support for DRA7, a new Cortex-A15-based SoC.
 
 The code that touches other architectures are patches moving
 MSI arch-specific functions over to weak symbols and removal of
 ARCH_SUPPORTS_MSI, acked by PCI maintainers.
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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:
 "This branch contains mostly additions and changes to platform
  enablement and SoC-level drivers.  Since there's sometimes a
  dependency on device-tree changes, there's also a fair amount of
  those in this branch.

  Pieces worth mentioning are:

   - Mbus driver for Marvell platforms, allowing kernel configuration
     and resource allocation of on-chip peripherals.
   - Enablement of the mbus infrastructure from Marvell PCI-e drivers.
   - Preparation of MSI support for Marvell platforms.
   - Addition of new PCI-e host controller driver for Tegra platforms
   - Some churn caused by sharing of macro names between i.MX 6Q and 6DL
     platforms in the device tree sources and header files.
   - Various suspend/PM updates for Tegra, including LP1 support.
   - Versatile Express support for MCPM, part of big little support.
   - Allwinner platform support for A20 and A31 SoCs (dual and quad
     Cortex-A7)
   - OMAP2+ support for DRA7, a new Cortex-A15-based SoC.

  The code that touches other architectures are patches moving MSI
  arch-specific functions over to weak symbols and removal of
  ARCH_SUPPORTS_MSI, acked by PCI maintainers"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (266 commits)
  tegra-cpuidle: provide stub when !CONFIG_CPU_IDLE
  PCI: tegra: replace devm_request_and_ioremap by devm_ioremap_resource
  ARM: tegra: Drop ARCH_SUPPORTS_MSI and sort list
  ARM: dts: vf610-twr: enable i2c0 device
  ARM: dts: i.MX51: Add one more I2C2 pinmux entry
  ARM: dts: i.MX51: Move pins configuration under "iomuxc" label
  ARM: dtsi: imx6qdl-sabresd: Add USB OTG vbus pin to pinctrl_hog
  ARM: dtsi: imx6qdl-sabresd: Add USB host 1 VBUS regulator
  ARM: dts: imx27-phytec-phycore-som: Enable AUDMUX
  ARM: dts: i.MX27: Disable AUDMUX in the template
  ARM: dts: wandboard: Add support for SDIO bcm4329
  ARM: i.MX5 clocks: Remove optional clock setup (CKIH1) from i.MX51 template
  ARM: dts: imx53-qsb: Make USBH1 functional
  ARM i.MX6Q: dts: Enable I2C1 with EEPROM and PMIC on Phytec phyFLEX-i.MX6 Ouad module
  ARM i.MX6Q: dts: Enable SPI NOR flash on Phytec phyFLEX-i.MX6 Ouad module
  ARM: dts: imx6qdl-sabresd: Add touchscreen support
  ARM: imx: add ocram clock for imx53
  ARM: dts: imx: ocram size is different between imx6q and imx6dl
  ARM: dts: imx27-phytec-phycore-som: Fix regulator settings
  ARM: dts: i.MX27: Remove clock name from CPU node
  ...
2013-09-06 13:30:06 -07:00
Linus Torvalds 8e73e367f7 ARM: SoC cleanups for 3.12
This branch contains code cleanups, moves and removals for 3.12.
 
 There's a large number of various cleanups, and a nice net removal of
 13500 lines of code.
 
 Highlights worth mentioning are:
 
 - A series of patches from Stephen Boyd removing the ARM local timer API.
 - Move of Qualcomm MSM IOMMU code to drivers/iommu.
 - Samsung PWM driver cleanups from Tomasz Figa, removing legacy PWM driver
   and switching over to the drivers/pwm one.
 - Removal of some unusued auto-generated headers for OMAP2+ (PRM/CM).
 
 There's also a move of a header file out of include/linux/i2c/ to
 platform_data, where it really belongs. It touches mostly ARM platform
 code for include changes so we took it through our tree.
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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 3.12.

  There's a large number of various cleanups, and a nice net removal of
  13500 lines of code.

  Highlights worth mentioning are:

   - A series of patches from Stephen Boyd removing the ARM local timer
     API.
   - Move of Qualcomm MSM IOMMU code to drivers/iommu.
   - Samsung PWM driver cleanups from Tomasz Figa, removing legacy PWM
     driver and switching over to the drivers/pwm one.
   - Removal of some unusued auto-generated headers for OMAP2+ (PRM/CM).

  There's also a move of a header file out of include/linux/i2c/ to
  platform_data, where it really belongs.  It touches mostly ARM
  platform code for include changes so we took it through our tree"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: OMAP2+: Add back the define for AM33XX_RST_GLOBAL_WARM_SW_MASK
  gpio: (gpio-pca953x) move header to linux/platform_data/
  arm: zynq: hotplug: Remove unreachable code
  ARM: SAMSUNG: Remove unnecessary exynos4_default_sdhci*()
  tegra: simplify use of devm_ioremap_resource
  ARM: SAMSUNG: Remove plat/regs-timer.h header
  ARM: SAMSUNG: Remove remaining uses of plat/regs-timer.h header
  ARM: SAMSUNG: Remove pwm-clock infrastructure
  ARM: SAMSUNG: Remove old PWM timer platform devices
  pwm: Remove superseded pwm-samsung-legacy driver
  ARM: SAMSUNG: Modify board files to use new PWM platform device
  ARM: SAMSUNG: Rework private data handling in dev-backlight
  pwm: Add new pwm-samsung driver
  ARM: mach-mvebu: remove redundant DT parsing and validation
  ARM: msm: Only compile io.c on platforms that use it
  iommu/msm: Move mach includes to iommu directory
  ARM: msm: Remove devices-iommu.c
  ARM: msm: Move mach/board.h contents to common.h
  ARM: msm: Migrate msm_timer to CLOCKSOURCE_OF_DECLARE
  ARM: msm: Remove TMR and TMR0 static mappings
  ...
2013-09-06 13:21:16 -07:00
Vivien Didelot 5877457a96 gpio: (gpio-pca953x) move header to linux/platform_data/
This patch moves the pca953x.h header from include/linux/i2c to
include/linux/platform_data and updates existing support accordingly.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-08-29 12:33:52 -07:00
Sascha Hauer 0429936697 ARM: i.MX: remove sdma script address arrays from platform data
Now that the sdma driver holds the address tables for i.MX25/5 they
are no longer needed in platform_data. Remove them.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-08-26 20:47:16 +05:30
Shawn Guo ea257a0328 ARM: imx: add ocram clock for imx53
Add missing ocram gate clock for imx53 and also represent it in device
tree ocram node.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:29:46 +08:00
Shawn Guo a94f8ecb2f ARM: imx6q: remove board specific CLKO setup
The CLKO is widely used by imx6q board designs to clock audio codec.
Since most codecs accept 24 MHz frequency, let's initially set up CLKO
with OSC24M (cko <-- cko2 <-- osc).  Then those board specific CLKO
setup for audio codec can be removed.

The board dts files also need an update on cko reference in codec node.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:29:34 +08:00
Dinh Nguyen dc76a1adfa phy: micrel: Add definitions for common Micrel PHY registers
Add defines for common Micrel PHY setups so that other platforms
can use them. Update imx61 and sama5 hardware to use the micrel_phy.h
PHY defines.

Also add support for the KSZ9021RLRN PHY.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: David S. Miller <davem@davemloft.net>
CC: Andrew Victor <linux@maxim.org.za>
CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:54 +08:00
Peter Chen ddcb9aa65a ARM: imx: Move anatop related from board file to anatop driver
Move anatop related (For USB) from board file to anatop driver

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:51 +08:00
Fabio Estevam 547dd1e089 ARM: mx53: Allow suspend/resume
Current imx53_pm_init() implementation is incomplete as it lacks calling
suspend_set_ops().

Use a single imx5_pm_init() function to handle both mx51 and mx53.

This allows mx53 to enter in low-power mode.

Tested on a mx53qsb:

root@freescale /$ echo mem > /sys/power/state
PM: Syncing filesystems ... done.
mmc0: card e624 removed
Freezing user space processes ... (elapsed 0.001 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Suspending console(s) (use no_console_suspend to debug)

... (Press Power button)

PM: suspend of devices complete after 17.067 msecs
PM: suspend devices took 0.020 seconds
PM: late suspend of devices complete after 0.954 msecs
PM: noirq suspend of devices complete after 1.288 msecs
Disabling non-boot CPUs ...
PM: noirq resume of devices complete after 0.680 msecs
PM: early resume of devices complete after 0.914 msecs
PM: resume of devices complete after 44.955 msecs
PM: resume devices took 0.050 seconds
Restarting tasks ... done.
mmc0: host does not support reading read-only switch. assuming write-enable.
mmc0: new SDHC card at address e624
mmcblk0: mmc0:e624 SU04G 3.69 GiB
 mmcblk0: p1 p2 p3
libphy: 63fec000.etherne:00 - Link is Down
libphy: 63fec000.etherne:00 - Link is Up - 100/Full
root@freescale /$

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:45 +08:00
Fabio Estevam f36b594f37 ARM: mach-imx: Select ARM_CPU_SUSPEND at ARCH_MXC level
Instead of selecting ARM_CPU_SUSPEND only for mx6, we can select it for
all SoCs from the ARCH_MXC family.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:43 +08:00
Shawn Guo 97245139a0 ARM: imx6q: add vdoa gate clock
Add the missing vdoa gate clock for imx6q.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:41 +08:00
Shawn Guo 6cd622357d ARM: imx6q: add the missing cko output selection
The clock output on imx6q CCM_CLKO1 pad is not always cko1 clock, and
there is a multiplexer to select between cko1 and cko2.  Add this
missing selection as the clock cko.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:39 +08:00
Shawn Guo 6526bb3cc5 ARM: imx6q: add cko2 clocks
It adds the missing cko2 clocks, including multiplexer, divider and
gate.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:38 +08:00
Shawn Guo 1fa5007b3a ARM: imx6q: add spdif gate clock
It adds the missing spdif gate clock into imx6q clock driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-22 23:20:37 +08:00
Sudeep KarkadaNagesha cdc58d602d cpufreq: imx6q-cpufreq: remove device tree parsing for cpu nodes
Now that the cpu device registration initialises the of_node(if available)
appropriately for all the cpus, parsing here is redundant.

This patch removes all DT parsing and uses cpu->of_node instead.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
2013-08-21 10:29:53 +01:00
James Hogan 819c1de344 clk: add CLK_SET_RATE_NO_REPARENT flag
Add a CLK_SET_RATE_NO_REPARENT clock flag, which will prevent muxes
being reparented during clk_set_rate.

To avoid breaking existing platforms, all callers of clk_register_mux()
are adjusted to pass the new flag. Platform maintainers are encouraged
to remove the flag if they wish to allow mux reparenting on set_rate.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Chao Xie <xiechao.mail@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Emilio López" <emilio@elopez.com.ar>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrew Chew <achew@nvidia.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: spear-devel@list.st.com
Cc: linux-tegra@vger.kernel.org
Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com> [tegra]
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [sunxi]
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> [Zynq]
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-08-19 12:27:17 -07:00
Peter Chen 0a03638852 ARM: imx: clk-pllv3: improve the timeout waiting method
There are two improvements for this commit:

- Add comparing pll lock condition after while loop. It can
fix potential fake timeout problem caused by the code is just
scheduled out before compare the timeout, and the time of
scheduling out are more than one jiffies.

- Move timeout assignment more close to compare the timeout.
It can reduce the possibility the code is scheduled out, and
the timeout can be more precise.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:25 +08:00
Liu Ying dfd871442e ARM: imx6: change some clocks to fixup clocks
All the clocks controlled by the register 'CCM Serial Clock
Multiplexer Register 1' should be fixup clocks. This patch
changes those clocks from basic multiplexer or divider clocks
to fixup clocks.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:25 +08:00
Liu Ying a49e6c4b82 ARM: imx: add common clock support for fixup mux
One register may have several fields to control some clocks. It
is possible that the read/write values of some fields may map to
different real functional values, so writing to the other fields
in the same register may break a working clock tree. A real case
is the aclk_podf field in the register 'CCM Serial Clock Multiplexer
Register 1' of i.MX6Q/SDL SoC. This patch introduces a fixup hook
for multiplexer clock which is called before writing a value to
clock registers to support this kind of multiplexer clocks.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:24 +08:00
Liu Ying cbe7fc8aae ARM: imx: add common clock support for fixup div
One register may have several fields to control some clocks. It
is possible that the read/write values of some fields may map to
different real functional values, so writing to the other fields
in the same register may break a working clock tree. A real case
is the aclk_podf field in the register 'CCM Serial Clock Multiplexer
Register 1' of i.MX6Q/SDL SoC. This patch introduces a fixup hook
for divider clock which is called before writing a value to clock
registers to support this kind of divider clocks.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:24 +08:00
Fabio Estevam f025569322 ARM: imx: Select MIGHT_HAVE_CACHE_L2X0
Select MIGHT_HAVE_CACHE_L2X0 for armv6 and armv7 i.MX SoCs.

By selecting MIGHT_HAVE_CACHE_L2X0, the user still has the possibility to
disable CACHE_L2X0 selection via menuconfig.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:24 +08:00
Vincent Stehlé 10eff77074 ARM: imx: fix imx_init_l2cache storage class
This fixes the following compilation error:

  arch/arm/mach-imx/system.c:101:123: error: static declaration of ‘imx_init_l2cache’ follows non-static declaration
  In file included from arch/arm/mach-imx/system.c:32:0:
  arch/arm/mach-imx/common.h:165:13: note: previous declaration of ‘imx_init_l2cache’ was here
  arch/arm/mach-imx/system.c:101:123: warning: ‘imx_init_l2cache’ defined but not used [-Wunused-function]

Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:23 +08:00
Shawn Guo 73dada7fe7 ARM: imx: use imx specific L2 init function on imx6sl
The optimized L2 prefect and power setting done in imx_init_l2cache()
can also benefit imx6sl, so let's call the function on imx6sl as well.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
2013-08-16 13:11:23 +08:00
Shawn Guo e6a0756961 ARM: imx: let L2 initialization be a common function
Move imx6q L2 initialization function imx6q_init_l2cache() into
system.c, and rename it imx_init_l2cache(), so that other platforms
other than imx6q can also use the function.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
2013-08-16 13:11:22 +08:00
Philipp Zabel a6fc9d194d ARM i.MX6DL: parent LDB DI clocks to PLL5 on i.MX6S/DL
i.MX6S/DL have the Video PLL post dividers fixed already in revision 1.0

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:21 +08:00
Philipp Zabel 6d6fc5012a ARM i.MX6Q: Use ENET_CLK_SEL defines in imx6q_1588_init
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:21 +08:00
Sascha Hauer dbf6719a4a ARM: i.MX6: add ethernet phy fixup for KSZ9031
The KSZ9031 is used on the i.MX6 based Data Modul eDM-QMX6
board. It needs the same fixup to the rx/tx delays as other
i.MX6 boards.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:20 +08:00
Sascha Hauer 12da484485 ARM: i.MX6: add ethernet phy fixup for AR8031
The AR8031 is used on the i.MX6 based sabreSD, sabreauto and wandboard.
All need the same fixup, so add it for all i.MX6.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:19 +08:00
Sascha Hauer 14078291d8 ARM: i.MX6: call ksz9021 phy fixup for all i.MX6 boards
In current U-Boot the sabrelite, nitrogen6x and titanium all need
the same fixup for the ksz9021 phy. Instead of limiting the fixup
to a single board apply them for all.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-08-16 13:11:19 +08:00
Olof Johansson 8b2496a228 Here is the Samsung PWM cleanup series for you. Particular patches of the
series involve following modifications:
  1) fixing up few things in samsung_pwm_timer clocksource driver,
  2) moving remaining Samsung platforms to the new clocksource driver,
  3) removing old clocksource driver,
  4) adding new multiplatform- and DT-aware PWM driver,
  5) moving all Samsung platforms to use the new PWM driver,
  6) removing old PWM driver,
  7) removing all PWM-related code that is not used anymore.
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Merge tag 'v3.12-pwm-cleanup-for-olof' of git://github.com/tom3q/linux into next/cleanup

From Tomasz Figa:
Here is the Samsung PWM cleanup series. Particular patches of the series
involve following modifications:
 - fixing up few things in samsung_pwm_timer clocksource driver,
 - moving remaining Samsung platforms to the new clocksource driver,
 - removing old clocksource driver,
 - adding new multiplatform- and DT-aware PWM driver,
 - moving all Samsung platforms to use the new PWM driver,
 - removing old PWM driver,
 - removing all PWM-related code that is not used anymore.

* tag 'v3.12-pwm-cleanup-for-olof' of git://github.com/tom3q/linux: (684 commits)
  ARM: SAMSUNG: Remove plat/regs-timer.h header
  ARM: SAMSUNG: Remove remaining uses of plat/regs-timer.h header
  ARM: SAMSUNG: Remove pwm-clock infrastructure
  ARM: SAMSUNG: Remove old PWM timer platform devices
  pwm: Remove superseded pwm-samsung-legacy driver
  ARM: SAMSUNG: Modify board files to use new PWM platform device
  ARM: SAMSUNG: Rework private data handling in dev-backlight
  pwm: Add new pwm-samsung driver
  pwm: samsung: Rename to pwm-samsung-legacy
  ARM: SAMSUNG: Remove unused PWM timer IRQ chip code
  ARM: SAMSUNG: Remove old samsung-time driver
  ARM: SAMSUNG: Move all platforms to new clocksource driver
  ARM: SAMSUNG: Set PWM platform data
  ARM: SAMSUNG: Add new PWM platform device
  ARM: SAMSUNG: Unify base address definitions of timer block
  clocksource: samsung_pwm_timer: Handle suspend/resume correctly
  clocksource: samsung_pwm_timer: Do not use clocksource_mmio
  clocksource: samsung_pwm_timer: Cache clocksource register address
  clocksource: samsung_pwm_timer: Correct definition of AUTORELOAD bit
  clocksource: samsung_pwm_timer: Do not request PWM mem region
  + v3.11-rc4

Conflicts:
	arch/arm/Kconfig.debug

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-08-13 23:33:07 -07:00
Olof Johansson 087bd3d492 ARM: imx: fix mismerge of localtimer code
I mis-resolved a merge conflict due to the branch being a bit on the old side,
Stephen noticed. Here's the fix.

Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-08-02 13:47:15 -07:00
Olof Johansson 47dcd3563e Now that we have a generic arch hook for broadcast we can remove the local
timer API entirely. Doing so will reduce code in ARM core, reduce the
 architecture dependencies of our timer drivers, and simplify the code because
 we no longer go through an architecture layer that is essentially a hotplug
 notifier.
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Merge tag 'remove-local-timers' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/cleanup

From Stephen Boyd:

Now that we have a generic arch hook for broadcast we can remove the
local timer API entirely. Doing so will reduce code in ARM core, reduce
the architecture dependencies of our timer drivers, and simplify the code
because we no longer go through an architecture layer that is essentially
a hotplug notifier.

* tag 'remove-local-timers' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  ARM: smp: Remove local timer API
  clocksource: time-armada-370-xp: Divorce from local timer API
  clocksource: time-armada-370-xp: Fix sparse warning
  ARM: msm: Divorce msm_timer from local timer API
  ARM: PRIMA2: Divorce timer-marco from local timer API
  ARM: EXYNOS4: Divorce mct from local timer API
  ARM: OMAP2+: Divorce from local timer API
  ARM: smp_twd: Divorce smp_twd from local timer API
  ARM: smp: Remove duplicate dummy timer implementation

Resolved a large number of conflicts due to __cpuinit cleanups, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-07-23 16:54:15 -07:00
Olof Johansson d757380c11 The imx fixes for 3.11:
* A few device tree source fixes regarding pinctrl, clock, and pwm
   backlight.
 * Fixes imx28 and imx51 audio driver failure caused by sgtl5000 codec
   driver change by supplying the correct clock for codec.
 * imx6q emi_sel clock muxing and imx6q-iomuxc-gpr macro fixes
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Merge tag 'imx-fixes-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo, imx fixes for 3.11:

- A few device tree source fixes regarding pinctrl, clock, and pwm
  backlight.
- Fixes imx28 and imx51 audio driver failure caused by sgtl5000 codec
  driver change by supplying the correct clock for codec.
- imx6q emi_sel clock muxing and imx6q-iomuxc-gpr macro fixes

* tag 'imx-fixes-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: dts: imx51-babbage: Pass a real clock to the codec
  ARM i.MX53: mba53: Fix PWM backlight DT node
  ARM: imx: fix vf610 enet module clock selection
  ARM: mxs: saif0 is the clock provider to sgtl5000
  ARM: i.MX6Q: correct emi_sel clock muxing
  ARM i.MX6Q: Fix IOMUXC GPR1 defines for ENET_CLK_SEL and IPU1/2_MUX
  ARM: i.MX27: Typo fix
  ARM: imx27: Fix documentation for SPLL clock
  ARM i.MX53: Fix UART pad configuration
2013-07-22 19:58:02 -07:00
Shawn Guo 4f71612ee3 ARM: imx: fix vf610 enet module clock selection
The fec/enet driver calculates MDC rate with the formula below.

  ref_freq / ((MII_SPEED + 1) x 2)

The ref_freq here is the fec internal module clock, which is missing
from clk-vf610 clock driver right now.  And clk-vf610 driver mistakenly
supplies RMII clock (50 MHz) as the source to fec.  This results in the
situation that fec driver gets ref_freq as 50 MHz, while physically it
runs at 66 MHz (fec module clock physically sources from ipg which runs
at 66 MHz).  That's why software expects MDC runs at 2.5 MHz, while the
measurement tells it runs at 3.3 MHz.  And this causes the PHY KSZ8041
keeps swithing between Full and Half mode as below.

  libphy: 400d0000.etherne:00 - Link is Up - 100/Full
  libphy: 400d0000.etherne:00 - Link is Up - 100/Half
  libphy: 400d0000.etherne:00 - Link is Up - 100/Full
  libphy: 400d0000.etherne:00 - Link is Up - 100/Half
  libphy: 400d0000.etherne:00 - Link is Up - 100/Full
  libphy: 400d0000.etherne:00 - Link is Up - 100/Half

Add the missing module clock for ENET0 and ENET1, and correct the clock
supplying in device tree to fix above issue.

Thanks to Alison Wang <b18965@freescale.com> for debugging the issue.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-07-15 08:28:09 +08:00
Liu Ying 3b79cd15bf ARM: i.MX6Q: correct emi_sel clock muxing
The correct muxing for emi_sel clock should be
2b'00 - 396M PFD
2b'01 - PLL3
2b'10 - AXI clk root
2b'11 - 352M PFD

This patch corrects the muxing in the clock driver.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
2013-07-15 08:28:08 +08:00
Alexander Shiyan 0d5ca6d973 ARM: i.MX27: Typo fix
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-07-15 08:28:07 +08:00
Paul Gortmaker 8bd26e3a7e arm: delete __cpuinit/__CPUINIT usage from all ARM users
The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
and are flagged as __cpuinit  -- so if we remove the __cpuinit from
the arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
related content into no-ops as early as possible, since that will get
rid of these warnings.  In any case, they are temporary and harmless.

This removes all the ARM uses of the __cpuinit macros from C code,
and all __CPUINIT from assembly code.  It also had two ".previous"
section statements that were paired off against __CPUINIT
(aka .section ".cpuinit.text") that also get removed here.

[1] https://lkml.org/lkml/2013/5/20/589

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-07-14 19:36:52 -04:00
Linus Torvalds 496322bc91 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "This is a re-do of the net-next pull request for the current merge
  window.  The only difference from the one I made the other day is that
  this has Eliezer's interface renames and the timeout handling changes
  made based upon your feedback, as well as a few bug fixes that have
  trickeled in.

  Highlights:

   1) Low latency device polling, eliminating the cost of interrupt
      handling and context switches.  Allows direct polling of a network
      device from socket operations, such as recvmsg() and poll().

      Currently ixgbe, mlx4, and bnx2x support this feature.

      Full high level description, performance numbers, and design in
      commit 0a4db187a9 ("Merge branch 'll_poll'")

      From Eliezer Tamir.

   2) With the routing cache removed, ip_check_mc_rcu() gets exercised
      more than ever before in the case where we have lots of multicast
      addresses.  Use a hash table instead of a simple linked list, from
      Eric Dumazet.

   3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from
      Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski,
      Marek Puzyniak, Michal Kazior, and Sujith Manoharan.

   4) Support reporting the TUN device persist flag to userspace, from
      Pavel Emelyanov.

   5) Allow controlling network device VF link state using netlink, from
      Rony Efraim.

   6) Support GRE tunneling in openvswitch, from Pravin B Shelar.

   7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from
      Daniel Borkmann and Eric Dumazet.

   8) Allow controlling of TCP quickack behavior on a per-route basis,
      from Cong Wang.

   9) Several bug fixes and improvements to vxlan from Stephen
      Hemminger, Pravin B Shelar, and Mike Rapoport.  In particular,
      support receiving on multiple UDP ports.

  10) Major cleanups, particular in the area of debugging and cookie
      lifetime handline, to the SCTP protocol code.  From Daniel
      Borkmann.

  11) Allow packets to cross network namespaces when traversing tunnel
      devices.  From Nicolas Dichtel.

  12) Allow monitoring netlink traffic via AF_PACKET sockets, in a
      manner akin to how we monitor real network traffic via ptype_all.
      From Daniel Borkmann.

  13) Several bug fixes and improvements for the new alx device driver,
      from Johannes Berg.

  14) Fix scalability issues in the netem packet scheduler's time queue,
      by using an rbtree.  From Eric Dumazet.

  15) Several bug fixes in TCP loss recovery handling, from Yuchung
      Cheng.

  16) Add support for GSO segmentation of MPLS packets, from Simon
      Horman.

  17) Make network notifiers have a real data type for the opaque
      pointer that's passed into them.  Use this to properly handle
      network device flag changes in arp_netdev_event().  From Jiri
      Pirko and Timo Teräs.

  18) Convert several drivers over to module_pci_driver(), from Peter
      Huewe.

  19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a
      O(1) calculation instead.  From Eric Dumazet.

  20) Support setting of explicit tunnel peer addresses in ipv6, just
      like ipv4.  From Nicolas Dichtel.

  21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet.

  22) Prevent a single high rate flow from overruning an individual cpu
      during RX packet processing via selective flow shedding.  From
      Willem de Bruijn.

  23) Don't use spinlocks in TCP md5 signing fast paths, from Eric
      Dumazet.

  24) Don't just drop GSO packets which are above the TBF scheduler's
      burst limit, chop them up so they are in-bounds instead.  Also
      from Eric Dumazet.

  25) VLAN offloads are missed when configured on top of a bridge, fix
      from Vlad Yasevich.

  26) Support IPV6 in ping sockets.  From Lorenzo Colitti.

  27) Receive flow steering targets should be updated at poll() time
      too, from David Majnemer.

  28) Fix several corner case regressions in PMTU/redirect handling due
      to the routing cache removal, from Timo Teräs.

  29) We have to be mindful of ipv4 mapped ipv6 sockets in
      upd_v6_push_pending_frames().  From Hannes Frederic Sowa.

  30) Fix L2TP sequence number handling bugs, from James Chapman."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits)
  drivers/net: caif: fix wrong rtnl_is_locked() usage
  drivers/net: enic: release rtnl_lock on error-path
  vhost-net: fix use-after-free in vhost_net_flush
  net: mv643xx_eth: do not use port number as platform device id
  net: sctp: confirm route during forward progress
  virtio_net: fix race in RX VQ processing
  virtio: support unlocked queue poll
  net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit
  Documentation: Fix references to defunct linux-net@vger.kernel.org
  net/fs: change busy poll time accounting
  net: rename low latency sockets functions to busy poll
  bridge: fix some kernel warning in multicast timer
  sfc: Fix memory leak when discarding scattered packets
  sit: fix tunnel update via netlink
  dt:net:stmmac: Add dt specific phy reset callback support.
  dt:net:stmmac: Add support to dwmac version 3.610 and 3.710
  dt:net:stmmac: Allocate platform data only if its NULL.
  net:stmmac: fix memleak in the open method
  ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available
  net: ipv6: fix wrong ping_v6_sendmsg return value
  ...
2013-07-09 18:24:39 -07:00
Robin Holt 7b6d864b48 reboot: arm: change reboot_mode to use enum reboot_mode
Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.

[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-09 10:33:29 -07:00
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
Thomas Gleixner 2b0f89317e Merge branch 'timers/posix-cpu-timers-for-tglx' of
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into timers/core

Frederic sayed: "Most of these patches have been hanging around for
several month now, in -mmotm for a significant chunk. They already
missed a few releases."

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-07-04 23:11:22 +02:00
Linus Torvalds c16bfeb264 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem updates from Bryan Wu:
 - lp55xx device tree updates
 - mc13xxx driver updates
 - some clean up

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: mc13783: Fix "uninitialized variable" warning
  leds: Convert led class driver from legacy pm ops to dev_pm_ops
  leds: leds-mc13783: Add MC13892 LED support
  leds: leds-mc13783: Prepare driver to support MC13892 LEDs
  leds: renesas-tpu: cleanup a small type issue
  leds: use platform_{get,set}_drvdata()
  leds: leds-gpio: Let device core handle pinctrl
  leds: lp5562: Properly setup of_device_id table
  leds: lp5523: Properly setup of_device_id table
  leds: lp5521: Properly setup of_device_id table
  leds: lp5562: support the device tree feature
  leds: lp55xx: support dynamic channel settings in the device tree structure
  leds: leds-ns2: remove unnecessary platform_set_drvdata()
  leds: leds-mc13783: remove unnecessary platform_set_drvdata()
  leds: leds-gpio: remove unnecessary platform_set_drvdata()
  leds: atmel-pwm: remove unnecessary platform_set_drvdata()
  leds: lp55xx: add support for Device Tree bindings
2013-07-03 19:55:33 -07:00
Linus Torvalds fb2af0020a Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King:
 "This contains the usual updates from other people (listed below) and
  the usual random muddle of miscellaneous ARM updates which cover some
  low priority bug fixes and performance improvements.

  I've started to put the pull request wording into the merge commits,
  which are:

   - NoMMU stuff:

     This includes the following series sent earlier to the list:
      - nommu-fixes
      - R7 Support
      - MPU support

     I've left out the ARCH_MULTIPLATFORM/!MMU stuff that Arnd and I
     were discussing today until we've reached a conclusion/that's had
     some more review.

     This is rebased (and re-tested) on your devel-stable branch because
     otherwise there were going to be conflicts with Uwe's V7M work now
     that you've merged that.  I've included the fix for limiting MPU to
     CPU_V7.

   - Huge page support

     These changes bring both HugeTLB support and Transparent HugePage
     (THP) support to ARM.  Only long descriptors (LPAE) are supported
     in this series.

     The code has been tested on an Arndale board (Exynos 5250).

   - LPAE updates

     Please pull these miscellaneous LPAE fixes I've been collecting for
     a while now for 3.11.  They've been tested and reviewed by quite a
     few people, and most of the patches are pretty trivial.  -- Will Deacon.

   - arch_timer cleanups

     Please pull these arch_timer cleanups I've been holding onto for a
     while.  They're the same as my last posting, but have been rebased
     to v3.10-rc3.

   - mpidr linearisation (multiprocessor id register - identifies which
     CPU number we are in the system)

     This patch series that implements MPIDR linearization through a
     simple hashing algorithm and updates current cpu_{suspend}/{resume}
     code to use the newly created hash structures to retrieve context
     pointers.  It represents a stepping stone for the implementation of
     power management code on forthcoming multi-cluster ARM systems.

     It has been tested on TC2 (dual cluster A15xA7 system), iMX6q,
     OMAP4 and Tegra, with processors hitting low-power states requiring
     warm-boot resume through the cpu_resume code path"

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
  ARM: 7775/1: mm: Remove do_sect_fault from LPAE code
  ARM: 7777/1: Avoid extra calls to the C compiler
  ARM: 7774/1: Fix dtb dependency to use order-only prerequisites
  ARM: 7770/1: remove residual ARMv2 support from decompressor
  ARM: 7769/1: Cortex-A15: fix erratum 798181 implementation
  ARM: 7768/1: prevent risks of out-of-bound access in ASID allocator
  ARM: 7767/1: let the ASID allocator handle suspended animation
  ARM: 7766/1: versatile: don't mark pen as __INIT
  ARM: 7765/1: perf: Record the user-mode PC in the call chain.
  ARM: 7735/2: Preserve the user r/w register TPIDRURW on context switch and fork
  ARM: kernel: implement stack pointer save array through MPIDR hashing
  ARM: kernel: build MPIDR hash function data structure
  ARM: mpu: Ensure that MPU depends on CPU_V7
  ARM: mpu: protect the vectors page with an MPU region
  ARM: mpu: Allow enabling of the MPU via kconfig
  ARM: 7758/1: introduce config HAS_BANDGAP
  ARM: 7757/1: mm: don't flush icache in switch_mm with hardware broadcasting
  ARM: 7751/1: zImage: don't overwrite ourself with a page table
  ARM: 7749/1: spinlock: retry trylock operation if strex fails on free lock
  ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
  ...
2013-07-03 09:46:29 -07:00
Linus Torvalds ee1a8d402e ARM SoC device tree changes
These changes from 30 individual branches for the most part update device
 tree files, but there are also a few source code changes that have crept
 in this time, usually in order to atomically move over a driver from
 using hardcoded data to DT probing.
 
 A number of platforms change their DT files to use the C preprocessor,
 which is causing a bit of churn, but that is hopefully only this once.
 
 There are a few conflicts with the other branches unfortunately:
 
 * in exynos5440.dtsi and kirkwood-6281.dtsi, device nodes are added
   from multiple branches. Need to be careful to have the right
   set of closing braces as git gets this one wrong.
 
 * In kirkwood.dtsi, one 'ranges' line got split into two lines, while
   another line got added. Order of the lines does not matter.
 
 * in sama5d3.dtsi, some cleanup was merged the wrong way, causing
   a bogus conflict. We want the 'dmas' and 'dma-names' properties
   to get added here.
 
 * Two lines got removed independently in arch/arm/mach-mxs/mach-mxs.c
 
 * Contents get added independently in arch/arm/mach-omap2/cclock33xx_data.c
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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 device tree changes from Arnd Bergmann:
 "These changes from 30 individual branches for the most part update
  device tree files, but there are also a few source code changes that
  have crept in this time, usually in order to atomically move over a
  driver from using hardcoded data to DT probing.

  A number of platforms change their DT files to use the C preprocessor,
  which is causing a bit of churn, but that is hopefully only this once"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits)
  ARM: at91: dt: rm9200ek: add spi support
  ARM: at91: dt: rm9200: add spi support
  ARM: at91/DT: at91sam9n12: add SPI DMA client infos
  ARM: at91/DT: sama5d3: add SPI DMA client infos
  ARM: at91/DT: fix SPI compatibility string
  ARM: Kirkwood: Fix the internal register ranges translation
  ARM: dts: bcm281xx: change comment to C89 style
  ARM: mmc: bcm281xx SDHCI driver (dt mods)
  ARM: nomadik: add the new clocks to the device tree
  clk: nomadik: implement the Nomadik clocks properly
  ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
  ARM: dts: omap4-panda: Fix DVI EDID reads
  ARM: dts: omap4-panda: Add USB Host support
  arm: mvebu: enable mini-PCIe connectors on Armada 370 RD
  ARM: shmobile: irqpin: add a DT property to enable masking on parent
  ARM: dts: AM43x EPOS EVM support
  ARM: dts: OMAP5: Add bandgap DT entry
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
  ...
2013-07-02 14:23:01 -07:00
Russell King cbd379b100 Merge branches 'fixes', 'mcpm', 'misc' and 'mmci' into for-next 2013-06-29 11:43:28 +01:00
Marc Kleine-Budde 30caa4b763 ARM: imx: prepare for removal of flexcan_platform_data
As there are no imx in-tree users of flexcan_platform_data, this patch removes
the possibility to register a flexcan device with platform data.

The functionality to swith on/off CAN transceivers is added to DT via
regulators in a later patch.

Compile time tested with imx_v4_v5_defconfig and imx_v6_v7_defconfig.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-06-27 15:15:08 +02:00
Stephen Boyd a894fcc2d0 ARM: smp_twd: Divorce smp_twd from local timer API
Separate the smp_twd timers from the local timer API. This will
allow us to remove ARM local timer support in the near future and
gets us closer to moving this driver to drivers/clocksource.

Tested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-06-24 17:45:58 -07:00
Arnd Bergmann 0626494d5f ARM: imx: select syscon for IMX6SL
This is required for building a kernel that enables only
IMX6SL but not IMX6Q, which would get a build error when
syscon is not available.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-24 16:14:40 +02:00
Arnd Bergmann 123860e1d3 ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
This is required for building a kernel that enables only
scb9328 and would not get the i.MX1 specific files
otherwise.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sascha Hauer <kernel@pengutronix.de>
2013-06-24 16:13:14 +02:00
Alexander Shiyan 9d263813c2 leds: leds-mc13783: Prepare driver to support MC13892 LEDs
This patch rewrite driver code to be ready to add support for
MC13892 LEDs and probe from devicetree.

(cooloney@gmail.com: fix one coding style issue when apply this patch)

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Tested-by: Philippe Retornaz <philippe.retornaz@epfl.ch>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-06-20 16:21:34 -07:00
David S. Miller d98cae64e4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/wireless/ath/ath9k/Kconfig
	drivers/net/xen-netback/netback.c
	net/batman-adv/bat_iv_ogm.c
	net/wireless/nl80211.c

The ath9k Kconfig conflict was a change of a Kconfig option name right
next to the deletion of another option.

The xen-netback conflict was overlapping changes involving the
handling of the notify list in xen_netbk_rx_action().

Batman conflict resolution provided by Antonio Quartulli, basically
keep everything in both conflict hunks.

The nl80211 conflict is a little more involved.  In 'net' we added a
dynamic memory allocation to nl80211_dump_wiphy() to fix a race that
Linus reported.  Meanwhile in 'net-next' the handlers were converted
to use pre and post doit handlers which use a flag to determine
whether to hold the RTNL mutex around the operation.

However, the dump handlers to not use this logic.  Instead they have
to explicitly do the locking.  There were apparent bugs in the
conversion of nl80211_dump_wiphy() in that we were not dropping the
RTNL mutex in all the return paths, and it seems we very much should
be doing so.  So I fixed that whilst handling the overlapping changes.

To simplify the initial returns, I take the RTNL mutex after we try
to allocate 'tb'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-19 16:49:39 -07:00
Shawn Guo 59d5c0ce8a ARM: imx: move imx53-qsb audio codec clk lookup into DT
With device tree clk lookup support in place, we can move audio codec
clk lookup for ssi_ext1 into device tree now, so that imx53_qsb_init()
can be saved.

Since ssi_ext2 lookup is used nowhere, it gets removed together with
ssi_ext1 lookup from clk driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 16:04:15 +08:00
Nicolin Chen e7eccc7e16 ARM: clk-imx6qdl: Add clko1 configuration for imx6qdl-sabresd
WM8962 needs 24MHz clock for its MCLK, so choose PLL4 as the parent of clko1.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:16 +08:00
Markus Pargmann 794987ace5 ARM: imx: Remove mxc specific ulpi access ops
There are ulpi access ops implemented in drivers/usb/phy/phy-ulpi.c.
mxc access ops implement the same access operations within mach-imx. This
patch removes the mxc ulpi file and uses phy-ulpi instead for
imx_otg_ulpi_create.

phy-ulpi successfully tested with i.MX27 Phytec phyCARD-S (pca100).

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:16 +08:00
Jingchang Lu 5be913c682 ARM: imx: add initial support for VF610
Add initial support for Freescale Vybrid VF610 SoC.

Signed-off-by: Jingchang Lu <b35083@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:16 +08:00
Jingchang Lu 1f2c5fd5f0 ARM: imx: add VF610 clock support
Add clock support for Vybrid VF610. It uses dtc macro support to
define all clock IDs in vf610-clock.h to keep clock IDs coherence
between kernel and DT.

Signed-off-by: Jingchang Lu <b35083@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:15 +08:00
Fabio Estevam cc27cce229 ARM: imx: clk: No need to initialize phandle struct
commit 84344b43c (ARM: i.MX5: Allow DT clock providers) introduce the following
sparse warning:

arch/arm/mach-imx/clk.c:12:43: warning: Using plain integer as NULL pointer

There is no need to initialize phandle, so remove it.

Cc: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:15 +08:00
Fabio Estevam baa2559e60 ARM: imx: irq-common: Include header to avoid sparse warning
Fix the following sparse warning:

arch/arm/mach-imx/irq-common.c:24:5: warning: symbol 'mxc_set_irq_fiq' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:14 +08:00
Shawn Guo 53bb71da1c ARM: imx6: use common of_clk_init() call to initialize clocks
Instead of explicitly calling clock initialization functions, we can
declare the functions with CLK_OF_DECLARE() and then call common
of_clk_init() to have them invoked properly.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:14 +08:00
Shawn Guo 12aad63ca4 ARM: imx6q: call of_clk_init() to register fixed rate clocks
As the fixed rate clocks are defined in device tree, we can just call
of_clk_init() to register them.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:14 +08:00
Dirk Behme fbcb441217 ARM: i.MX6: clk: add different DualLite MLB clock config
The CCM_CBCMR register (address 0x02C4018) has different meaning
between the i.MX6 Quad/Dual and the i.MX6 Solo/DualLite.

Compared to the i.MX6 Quad/Dual, the CCM_CBCMR register in the
i.MX6 Solo/DualLite reuses the gpu2d_core bits for the MLB clock
configuration.

Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:13 +08:00
Philipp Zabel beb2d1c1ba ARM i.MX5: Add S/PDIF clocks
This patch adds the S/PDIF clocks for i.MX51 and i.MX53. Tested on i.MX53.
The i.MX51 has a second set of spdif_root clock dividers, and on i.MX53
there is an additional input to the spdif_xtal mux.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:13 +08:00
Sascha Hauer c9a74f5569 ARM i.MX53: Add SATA clock
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:12 +08:00
Huang Shijie 9545b2ed68 ARM: imx6q: clk: add the eim_slow clock
Add the eim_slow clock, since the weim needs it.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:12 +08:00
Jiada Wang 71ed547743 ARM: imx: remove MLB PLL from pllv3
MLB PLL should be handled internally in MLB driver,
so remove it from pllv3.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
CC: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:12 +08:00
Jiada Wang 7f96d2d4d8 ARM: imx: disable pll8_mlb in mx6q_clks
The MLB PLL clock's operation doesn't fit for clock framework and
it should be handled internally in MLB driver.
Remove initialization of pll8_mlb clock device but leave its
declaration in mx6q_clks to avoid affecting imx6q clock numbering.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
CC: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:11 +08:00
Shawn Guo 31a2fbf70e ARM: imx: add initial support for imx6sl
Add initial support for i.MX6 SoloLite.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:11 +08:00
Shawn Guo 45fe681034 ARM: imx: add clock support for imx6sl
Add clock support for i.MX6 SoloLite.  It uses the dtc marco support to
define all clock IDs in imx6sl-clock.h, which will be included by both
clock driver and device tree sources, so that the data will stay sync
all the time between kernel and DT.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:11 +08:00
Shawn Guo c1e31d126b ARM: imx: create mxc_arch_reset_init_dt() for DT boot
The mxc_arch_reset_init() uses static mapping and calls clk_get_sys() to
get clock.  It's suitable for non-DT boot but not for DT boot where
dynamic mapping and of_clk_get() should be used instead.  Create
mxc_arch_reset_init_dt() as the DT variant of mxc_arch_reset_init(),
and change DT platforms to use it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:10 +08:00
Shawn Guo 18cb680f1a ARM: imx: move clk_prepare() out from mxc_restart()
It's inappropriate to call clk_prepare() in mxc_restart(), because the
restart routine could be called in atomic context.  Move clk_get() and
clk_prepare() into mxc_arch_reset_init() and only have the atomic part
clk_enable() be called in mxc_restart().

As a result, mxc_arch_reset_init() needs to be called after clk gets
initialized.

While there, it also changes printk(KERN_ERR ...) to pr_err() and adds
__init annotation for mxc_arch_reset_init().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:10 +08:00
Shawn Guo 24a83fe4b0 ARM: imx: include <asm/io.h> in hardware.h
As IOMEM is referenced in hardware.h, <asm/io.h> should be included
there.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:10 +08:00
Dirk Behme 2e603ad984 ARM: i.MX6: clk: add i.MX6 DualLite differences
The CCM_CBCMR register (address 0x02C4018) has different meaning
between the i.MX6 Quad/Dual and the i.MX6 Solo/DualLite.

Compared to the i.MX6 Quad/Dual, the CCM_CBCMR register in the
i.MX6 Solo/DualLite doesn't have a gpu3d_shader configuration and
moves the gpu2_core configuration at that place.

Handle these i.MX6 Quad/Dual vs. i.MX6 Solo/DualLite clock differences
by using cpu_is_mx6dl().

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:09 +08:00
Dirk Behme b3a9c31537 ARM: i.MX6: add i.MX6 specific L2 cache configuration
To improve the performance and power consumption add an i.MX6
specific L2 cache initialization.

This configuration is taken from Freescale's kernel patch

"ENGR00153601 [MX6]Adjust L2 cache parameter" [1]

with two additional improvements:

a) The L2X0_POWER_CTRL has only the two bits we set. So no need
   to read the register before. Remove the register read done
   in Freescale's patch.

b) In the L2X0_PREFETCH_CTRL register, besides the double linefill (bit[30]),
   additionally enable the instruction and data prefetch (bit[29-28]).

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

[1] http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/commit/arch/arm/mach-mx6/mm.c?h=imx_3.0.35_12.09.01&id=814656410b40c67a10b25300e51b0477b2bb96d1
2013-06-17 15:45:09 +08:00
Martin Fuzzey 75f83d06c3 ARM: i.MX5: Allow DT clock providers
Currently clock providers defined in the DT are not registered
on i.MX5 platforms since of_clk_init() is not called.

This is not a problem for the SOC's own clocks, which are registered
in code,  but prevents the DT being used to define clocks for external
hardware.

Fix this by calling of_clk_init() and actually using the DT to obtain
the 4 SOC fixed clocks.
These are already defined in the DT but were previously just used to
manually obtain the rate.

Fall back to the old scheme for non DT platforms.

Since the same method may be useful for other i.MX platforms
implement the imx_obtain_fixed_clock() function in common code.

Actually changing other i.MX platforms to use this should be done
later by someone with access to the appropriate hardware.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:09 +08:00
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
David S. Miller 6bc19fb82d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge 'net' bug fixes into 'net-next' as we have patches
that will build on top of them.

This merge commit includes a change from Emil Goode
(emilgoode@gmail.com) that fixes a warning that would
have been introduced by this merge.  Specifically it
fixes the pingv6_ops method ipv6_chk_addr() to add a
"const" to the "struct net_device *dev" argument and
likewise update the dummy_ipv6_chk_addr() declaration.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-05 16:37:30 -07:00
Marc Kleine-Budde 4c4726faed can: flexcan: remove HAVE_CAN_FLEXCAN Kconfig symbol
This patch removes the Kconfig symbol HAVE_CAN_FLEXCAN from arch/{arm,powerpc}
and allowing compilation unconditionally on all arm and powerpc platforms.

This brings a bigger compile time coverage and removes the following dependency
warning found by Arnd Bergmann:

    warning: (SOC_IMX28 && SOC_IMX25 && SOC_IMX35 && IMX_HAVE_PLATFORM_FLEXCAN &&
        SOC_IMX53 && SOC_IMX6Q) selects HAVE_CAN_FLEXCAN
    which has unmet direct dependencies (NET && CAN && CAN_DEV)

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-06-03 13:13:49 +02:00
Anson Huang a08b9bc586 ARM: imx: clk-imx6q: AXI clock select index is incorrect
The AXI clock mux should be as below:

00: periph;
01: pll2_pfd2_396m;
10: periph;
11: pll3_pfd1_540m;

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-03 13:47:12 +08:00
Jiada Wang cc9a3e9994 ARM i.MX6q: fix for ldb_di_sels
As pll5_video_div has been introduced to represent the clock
generated from post-divider for video.
Instead of pll5_video, pll5_video_div should be proper root clock
for ldb_di_sel.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-05-23 10:10:57 +08:00
Laura Abbott 9b97173e78 ARM: 7728/1: mm: Use phys_addr_t properly for ioremap functions
Several of the ioremap functions use unsigned long in places
resulting in truncation if physical addresses greater than
4G are passed in. Change the types of the functions and the
callers accordingly.

Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-05-23 00:09:44 +01:00
Shawn Guo de78a23d73 ARM: imx: fix typo in gpu3d_shader_sels
There is no clock pll2_pfd9_720m.  Instead it should be pll3_pfd0_720m.
Fix the typo in gpu3d_shader_sels.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
2013-05-12 21:39:51 +08:00
Shawn Guo 087bb28329 ARM: imx: replicate the diagnostic register of boot cpu into secondary cores
The diagnostic register holds the errata bits.  Mostly bootloader
does not bring up secondary cores, so that when errata bits are set
in bootloader, they are set only for boot cpu.  But on a SMP
configuration, it should be equally done on every single core.
Set up the diagnostic register for secondary cores by replicating
the register from boot cpu.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
2013-05-12 21:39:18 +08:00
Dirk Behme 0e574461c4 ARM i.MX6: correct MLB clock configuration
According to the i.MX6 Dual/Quad technical reference manual
(Figure 18-2. Clock Tree - Part 1) the MLB clock is directly
feed by the AXI_CLK_ROOT. This is called 'axi' in our code.

Note that the clock of the MLB IP block on the i.MX6 is completely
independent of the PLL8 (MLB PLL). The MLB PLL isn't responsible
for feeding the MLB IP block with a clock. Instead, it's used
internally by the MLB module to sync the bus clock in case the MLB
6-pin interface is enabled:

MediaLB Control 0 Register, MLB150_MLBC0[5], MLBPEN:
1 MediaLB 6-pin interface enabled. MLB PLL and MLB PHY is enabled in this case.

I.e. the PLL8 MLB PLL has to be handled by the MLB driver and isn't needed
for clocking the MLB module itself.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
CC: Jiada Wang <Jiada_Wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-05-12 21:35:29 +08:00
Philipp Zabel 72cd7447e7 ARM i.MX6q: Fix periph_clk2_sel and periph2_clk2_sel clocks
The periph_clk2_sel mux can be set to pll3, osc/pll1_ref_clk, or osc/
pll2_burn_in_clk. The periph2_clk2_sel mux can be set to pll3 or pll2.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-05-12 21:35:22 +08:00
Fabio Estevam 60371952e1 ARM: imx: Select GENERIC_ALLOCATOR
Since commit 657eee7 (media: coda: use genalloc API) the following build
error happens with imx_v4_v5_defconfig:

drivers/built-in.o: In function 'coda_remove':
clk-composite.c:(.text+0x112180): undefined reference to 'gen_pool_free'
drivers/built-in.o: In function 'coda_probe':
clk-composite.c:(.text+0x112310): undefined reference to 'of_get_named_gen_pool'
clk-composite.c:(.text+0x1123f4): undefined reference to 'gen_pool_alloc'
clk-composite.c:(.text+0x11240c): undefined reference to 'gen_pool_virt_to_phys'
clk-composite.c:(.text+0x112458): undefined reference to 'dev_get_gen_pool'

Select GENERIC_ALLOCATOR and get rid of the custom IRAM_ALLOC.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-09 13:05:24 -07:00
Shawn Guo 009e63f8d1 ARM: imx: compile fix for hotplug.c
Commit bca7a5a (ARM: cpu hotplug: remove majority of cache flushing
from platforms) removes include of <asm/cacheflush.h> and hence
discovers a few indirect inclusion and declaration problems as below.

  CC      arch/arm/mach-imx/hotplug.o
In file included from arch/arm/mach-imx/hotplug.c:16:0:
arch/arm/mach-imx/common.h💯29: warning: ‘struct pt_regs’ declared inside parameter list [enabled by default]
arch/arm/mach-imx/common.h💯29: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
arch/arm/mach-imx/common.h:101:29: warning: ‘struct pt_regs’ declared inside parameter list [enabled by default]
arch/arm/mach-imx/hotplug.c: In function ‘imx_cpu_die’:
arch/arm/mach-imx/hotplug.c:53:2: error: implicit declaration of function ‘cpu_do_idle’ [-Werror=implicit-function-declaration]
arch/arm/mach-imx/hotplug.c: In function ‘imx_cpu_kill’:
arch/arm/mach-imx/hotplug.c:58:26: error: ‘jiffies’ undeclared (first use in this function)
arch/arm/mach-imx/hotplug.c:58:26: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/mach-imx/hotplug.c:58:2: error: implicit declaration of function ‘msecs_to_jiffies’ [-Werror=implicit-function-declaration]
arch/arm/mach-imx/hotplug.c:61:3: error: implicit declaration of function ‘time_after’ [-Werror=implicit-function-declaration]

Fix them by adding the needed inclusion and declaration.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-09 13:05:22 -07:00
Olof Johansson 5497e7b896 Merge branch 'late/fixes' into fixes
* late/fixes:
  ARM: OMAP2+: Fix unmet direct dependencies for SERIAL_OMAP
  ARM: ux500: always select ABX500_CORE
  ARM: SIRF: select SMP_ON_UP only on SMP builds
  ARM: SPEAr: conditionalize l2x0 support
  ARM: imx: build CPU suspend code only when needed
  ARM: OMAP: build SMP code only for OMAP4/5
  ARM: tegra: Tegra114 needs CPU_FREQ_TABLE
  ARM: default machine descriptor for multiplatform

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-09 13:05:15 -07:00
Linus Torvalds fcba914542 ARM: arm-soc platform updates for 3.10, part 3
This is the third and smallest of the SoC specific updates.
 Changes include:
 
 * SMP support for the Xilinx zynq platform
 * Smaller imx changes
 * LPAE support for mvebu
 * Moving the orion5x, kirkwood, dove and mvebu platforms
   to a common "mbus" driver for their internal devices.
 
 It would be good to get feedback on the location of the "mbus"
 driver. Since this is used on multiple platforms may potentially
 get shared with other architectures (powerpc and arm64), it
 was moved to drivers/bus/. We expect other similar drivers to
 get moved to the same place in order to avoid creating more
 top-level directories under drivers/ or cluttering up the
 messy drivers/misc/ even more.
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Merge tag 'soc-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates (part 3) from Arnd Bergmann:
 "This is the third and smallest of the SoC specific updates.  Changes
  include:

   - SMP support for the Xilinx zynq platform
   - Smaller imx changes
   - LPAE support for mvebu
   - Moving the orion5x, kirkwood, dove and mvebu platforms to a common
     "mbus" driver for their internal devices.

  It would be good to get feedback on the location of the "mbus" driver.
  Since this is used on multiple platforms may potentially get shared
  with other architectures (powerpc and arm64), it was moved to
  drivers/bus/.  We expect other similar drivers to get moved to the
  same place in order to avoid creating more top-level directories under
  drivers/ or cluttering up the messy drivers/misc/ even more."

* tag 'soc-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
  ARM: imx: reset_controller may be disabled
  ARM: mvebu: Align the internal registers virtual base to support LPAE
  ARM: mvebu: Limit the DMA zone when LPAE is selected
  arm: plat-orion: remove addr-map code
  arm: mach-mv78xx0: convert to use the mvebu-mbus driver
  arm: mach-orion5x: convert to use mvebu-mbus driver
  arm: mach-dove: convert to use mvebu-mbus driver
  arm: mach-kirkwood: convert to use mvebu-mbus driver
  arm: mach-mvebu: convert to use mvebu-mbus driver
  ARM i.MX53: set CLK_SET_RATE_PARENT flag on the tve_ext_sel clock
  ARM i.MX53: tve_di clock is not part of the CCM, but of TVE
  ARM i.MX53: make tve_ext_sel propagate rate change to PLL
  ARM i.MX53: Remove unused tve_gate clkdev entry
  ARM i.MX5: Remove tve_sel clock from i.MX53 clock tree
  ARM: i.MX5: Add PATA and SRTC clocks
  ARM: imx: do not bring up unavailable cores
  ARM: imx: add initial imx6dl support
  ARM: imx1: mm: add call to mxc_device_init
  ARM: imx_v4_v5_defconfig: Add CONFIG_GPIO_SYSFS
  ARM: imx_v6_v7_defconfig: Select CONFIG_PERF_EVENTS
  ...
2013-05-07 11:02:18 -07:00
Linus Torvalds d7ab7302f9 For 3.10 we have a few new MFD drivers for:
- The ChromeOS embedded controller which provides keyboard, battery and power
   management services. This controller is accessible through i2c or SPI.
 
 - Silicon Laboratories 476x controller, providing access to their FM chipset
   and their audio codec.
 
 - Realtek's RTS5249, a memory stick, MMC and SD/SDIO PCI based reader.
 
 - Nokia's Tahvo power button and watchdog device. This device is very similar
   to Retu and is thus supported by the same code base.
 
 - STMicroelectronics STMPE1801, a keyboard and GPIO controller supported by
   the stmpe driver.
 
 - ST-Ericsson AB8540 and AB8505 power management and voltage converter
   controllers through the existing ab8500 code.
 
 Some other drivers got cleaned up or improved. In particular:
 
 - The Linaro/STE guys got the ab8500 driver in sync with their internal code
   through a series of optimizations, fixes and improvements.
 
 - The AS3711 and OMAP USB drivers now have DT support.
 
 - The arizona clock and interrupt handling code got improved.
 
 - The wm5102 register patch and boot mechanism also got improved.
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Merge tag 'mfd-3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next

Pull MFD update from Samuel Ortiz:
 "For 3.10 we have a few new MFD drivers for:

   - The ChromeOS embedded controller which provides keyboard, battery
     and power management services.  This controller is accessible
     through i2c or SPI.

   - Silicon Laboratories 476x controller, providing access to their FM
     chipset and their audio codec.

   - Realtek's RTS5249, a memory stick, MMC and SD/SDIO PCI based
     reader.

   - Nokia's Tahvo power button and watchdog device.  This device is
     very similar to Retu and is thus supported by the same code base.

   - STMicroelectronics STMPE1801, a keyboard and GPIO controller
     supported by the stmpe driver.

   - ST-Ericsson AB8540 and AB8505 power management and voltage
     converter controllers through the existing ab8500 code.

  Some other drivers got cleaned up or improved.  In particular:

   - The Linaro/STE guys got the ab8500 driver in sync with their
     internal code through a series of optimizations, fixes and
     improvements.

   - The AS3711 and OMAP USB drivers now have DT support.

   - The arizona clock and interrupt handling code got improved.

   - The wm5102 register patch and boot mechanism also got improved."

* tag 'mfd-3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (104 commits)
  mfd: si476x: Don't use 0bNNN
  mfd: vexpress: Handle pending config transactions
  mfd: ab8500: Export ab8500_gpadc_sw_hw_convert properly
  mfd: si476x: Fix i2c warning
  mfd: si476x: Add header files and Kbuild plumbing
  mfd: si476x: Add chip properties handling code
  mfd: si476x: Add the bulk of the core driver
  mfd: si476x: Add commands abstraction layer
  mfd: rtsx: Support RTS5249
  mfd: retu: Add Tahvo support
  mfd: ucb1400: Pass ucb1400-gpio data through ac97 bus
  mfd: wm8994: Add some OF properties
  mfd: wm8994: Add device ID data to WM8994 OF device IDs
  input: Export matrix_keypad_parse_of_params()
  mfd: tps65090: Add compatible string for charger subnode
  mfd: db8500-prcmu: Support platform dependant device selection
  mfd: syscon: Fix warnings when printing resource_size_t
  of: Add stub of_get_parent for non-OF builds
  mfd: omap-usb-tll: Convert to devm_ioremap_resource()
  mfd: omap-usb-host: Convert to devm_ioremap_resource()
  ...
2013-05-05 17:36:20 -07:00
Arnd Bergmann cb48389bd6 ARM: imx: build CPU suspend code only when needed
The ARM CPU suspend function has its own configuration symbol,
which we need to use for conditionalizing any code calling into
it as well.

arch/arm/mach-imx/built-in.o: In function `v7_cpu_resume':
/git/arm-soc/arch/arm/mach-imx/headsmp.S:57: undefined
 reference to `cpu_resume'

Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-05-03 22:36:31 +02:00
Linus Torvalds 8546dc1d4b Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM updates from Russell King:
 "The major items included in here are:

   - MCPM, multi-cluster power management, part of the infrastructure
     required for ARMs big.LITTLE support.

   - A rework of the ARM KVM code to allow re-use by ARM64.

   - Error handling cleanups of the IS_ERR_OR_NULL() madness and fixes
     of that stuff for arch/arm

   - Preparatory patches for Cortex-M3 support from Uwe Kleine-König.

  There is also a set of three patches in here from Hugh/Catalin to
  address freeing of inappropriate page tables on LPAE.  You already
  have these from akpm, but they were already part of my tree at the
  time he sent them, so unfortunately they'll end up with duplicate
  commits"

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
  ARM: EXYNOS: remove unnecessary use of IS_ERR_VALUE()
  ARM: IMX: remove unnecessary use of IS_ERR_VALUE()
  ARM: OMAP: use consistent error checking
  ARM: cleanup: OMAP hwmod error checking
  ARM: 7709/1: mcpm: Add explicit AFLAGS to support v6/v7 multiplatform kernels
  ARM: 7700/2: Make cpu_init() notrace
  ARM: 7702/1: Set the page table freeing ceiling to TASK_SIZE
  ARM: 7701/1: mm: Allow arch code to control the user page table ceiling
  ARM: 7703/1: Disable preemption in broadcast_tlb*_a15_erratum()
  ARM: mcpm: provide an interface to set the SMP ops at run time
  ARM: mcpm: generic SMP secondary bringup and hotplug support
  ARM: mcpm_head.S: vlock-based first man election
  ARM: mcpm: Add baremetal voting mutexes
  ARM: mcpm: introduce helpers for platform coherency exit/setup
  ARM: mcpm: introduce the CPU/cluster power API
  ARM: multi-cluster PM: secondary kernel entry code
  ARM: cacheflush: add synchronization helpers for mixed cache state accesses
  ARM: cpu hotplug: remove majority of cache flushing from platforms
  ARM: smp: flush L1 cache in cpu_die()
  ARM: tegra: remove tegra specific cpu_disable()
  ...
2013-05-03 09:13:19 -07:00
Russell King 33b9f582c5 Merge branch 'cleanup' into for-linus
Conflicts:
	arch/arm/plat-omap/dmtimer.c
2013-05-02 21:31:29 +01:00
Arnd Bergmann 5c5f0421a8 ARM: imx: reset_controller may be disabled
The new reset controller API is optional, so if that is disabled,
we must not call it from platform code.

arch/arm/mach-imx/built-in.o: In function
 `imx_src_init': /git/arm-soc/arch/arm/mach-imx/src.c:144:
	undefined reference to `reset_controller_register'

Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-05-02 21:50:06 +02:00
Russell King d98642c3ee ARM: IMX: remove unnecessary use of IS_ERR_VALUE()
device_register() returns -ve values for errors, and zero for success.
There's no need to obfuscate the code with IS_ERR_VALUE().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-05-02 19:54:24 +01:00
Linus Torvalds 99c6bcf46d ARM: arm-soc multiplatform updates for 3.10
More multiplatform enablement for ARM platforms. The ones converted in
 this branch are:
 - bcm2835
 - cns3xxx
 - sirf
 - nomadik
 - msx
 - spear
 - tegra
 - ux500
 
 We're getting close to having most of them converted!
 
 One of the larger platforms remaining is Samsung Exynos, and there are
 a bunch of supporting patches in this merge window for it. There was a
 patch in this branch to a early version of multiplatform conversion,
 but it ended up being reverted due to need of more bake time. The
 revert commit is part of the branch since it would have required
 rebasing multiple dependent branches and they were stable by then.
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Merge tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform updates from Olof Johansson:
 "More multiplatform enablement for ARM platforms.  The ones converted
  in this branch are:

   - bcm2835
   - cns3xxx
   - sirf
   - nomadik
   - msx
   - spear
   - tegra
   - ux500

  We're getting close to having most of them converted!

  One of the larger platforms remaining is Samsung Exynos, and there are
  a bunch of supporting patches in this merge window for it.  There was
  a patch in this branch to a early version of multiplatform conversion,
  but it ended up being reverted due to need of more bake time.  The
  revert commit is part of the branch since it would have required
  rebasing multiple dependent branches and they were stable by then"

* tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
  mmc: sdhci-s3c: Fix operation on non-single image Samsung platforms
  clocksource: nomadik-mtu: fix up clocksource/timer
  Revert "ARM: exynos: enable multiplatform support"
  ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
  ARM: exynos: enable multiplatform support
  rtc: s3c: make header file local
  mtd: onenand/samsung: make regs-onenand.h file local
  thermal/exynos: remove unnecessary header inclusions
  mmc: sdhci-s3c: remove platform dependencies
  ARM: samsung: move mfc device definition to s5p-dev-mfc.c
  ARM: exynos: move debug-macro.S to include/debug/
  ARM: exynos: prepare for sparse IRQ
  ARM: exynos: introduce EXYNOS_ATAGS symbol
  ARM: tegra: build assembly files with -march=armv7-a
  ARM: Push selects for TWD/SCU into machine entries
  ARM: ux500: build hotplug.o for ARMv7-a
  ARM: ux500: move to multiplatform
  ARM: ux500: make remaining headers local
  ARM: ux500: make irqs.h local to platform
  ARM: ux500: get rid of <mach/[hardware|db8500-regs].h>
  ...
2013-05-02 09:38:16 -07:00
Linus Torvalds dfab34aa61 ARM: arm-soc device-tree updates for 3.10, part 1
Device-tree updates for 3.10. The bulk of the churn in this branch is due
 to i.MX moving from C-defined pin control over to device tree, which is
 a one-time conversion that will allow greater flexibility down the road.
 
 Besides that, there's PCI-e bindings for Marvell mvebu platforms and a
 handful of cleanups to tegra due to the new include file functionality
 of the device tree compiler.
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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 device-tree updates from Olof Johansson:
 "Part 1 of device-tree updates for 3.10.  The bulk of the churn in this
  branch is due to i.MX moving from C-defined pin control over to device
  tree, which is a one-time conversion that will allow greater
  flexibility down the road.

  Besides that, there's PCI-e bindings for Marvell mvebu platforms and a
  handful of cleanups to tegra due to the new include file functionality
  of the device tree compiler"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (113 commits)
  arm: mvebu: PCIe Device Tree informations for Armada XP GP
  arm: mvebu: PCIe Device Tree informations for Armada 370 DB
  arm: mvebu: PCIe Device Tree informations for Armada 370 Mirabox
  arm: mvebu: PCIe Device Tree informations for Armada XP DB
  arm: mvebu: PCIe Device Tree informations for OpenBlocks AX3-4
  arm: mvebu: add PCIe Device Tree informations for Armada XP
  arm: mvebu: add PCIe Device Tree informations for Armada 370
  ARM: sunxi: unify osc24M_fixed and osc24M
  arm: vt8500: Add SDHC support to WM8505 DT
  ARM: dts: Add a 64 bits version of the skeleton device tree
  ARM: mvebu: Add Device Bus and CFI flash memory support to defconfig
  ARM: mvebu: Add support for NOR flash device on Openblocks AX3 board
  ARM: mvebu: Add support for NOR flash device on Armada XP-GP board
  ARM: mvebu: Add Device Bus support for Armada 370/XP SoC
  ARM: dts: imx6dl-wandboard: Add USB Host support
  ARM: dts: imx51 cpu node
  ARM: dts: Add missing imx27-phytec-phycore dtb target
  ARM: dts: Add NFC support for i.MX27 Phytec PCM038 module
  ARM: i.MX51: Add PATA support
  ARM: dts: Add initial support for Wandboard Dual-Lite
  ...
2013-05-02 09:28:03 -07:00
Linus Torvalds a7726350e0 ARM: arm-soc cleanup for 3.10
Here is a collection of cleanup patches. Among the pieces that stand out are:
 
 - The deletion of h720x platforms
 - Split of at91 non-dt platforms to their own Kconfig file to keep them separate
 - General cleanups and refactoring of i.MX and MXS platforms
 - Some restructuring of clock tables for OMAP
 - Convertion of PMC driver for Tegra to dt-only
 - Some renames of sunxi -> sun4i (Allwinner A10)
 - ... plus a bunch of other stuff that I haven't mentioned
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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 cleanup from Olof Johansson:
 "Here is a collection of cleanup patches.  Among the pieces that stand
  out are:

   - The deletion of h720x platforms
   - Split of at91 non-dt platforms to their own Kconfig file to keep
     them separate
   - General cleanups and refactoring of i.MX and MXS platforms
   - Some restructuring of clock tables for OMAP
   - Convertion of PMC driver for Tegra to dt-only
   - Some renames of sunxi -> sun4i (Allwinner A10)
   - ... plus a bunch of other stuff that I haven't mentioned"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
  ARM: i.MX: remove unused ARCH_* configs
  ARM i.MX53: remove platform ahci support
  ARM: sunxi: Rework the restart code
  irqchip: sunxi: Rename sunxi to sun4i
  irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro
  clocksource: sunxi: Rename sunxi to sun4i
  clocksource: sunxi: make use of CLKSRC_OF
  clocksource: sunxi: Cleanup the timer code
  ARM: at91: remove trailing semicolon from macros
  ARM: at91/setup: fix trivial typos
  ARM: EXYNOS: remove "config EXYNOS_DEV_DRM"
  ARM: EXYNOS: change the name of USB ohci header
  ARM: SAMSUNG: Remove unnecessary code for dma
  ARM: S3C24XX: Remove unused GPIO drive strength register definitions
  ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force wakeup method
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2412
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2410
  ARM: S3C24XX: Removed unneeded dependency on ARCH_S3C24XX for boards
  ARM: SAMSUNG: Fix typo "CONFIG_SAMSUNG_DEV_RTC"
  ARM: S5P64X0: Fix typo "CONFIG_S5P64X0_SETUP_SDHCI"
  ...
2013-05-02 09:03:55 -07:00
Linus Torvalds 4d26aa3054 ARM: arm-soc non-critical fixes for 3.10
Here is a collection of fixes (and some intermixed cleanups) that were
 considered less important and thus not included in the later parts of
 the 3.9-rc cycle.
 
 It's a bit all over the map, contents wise. A series of ux500 fixes
 and cleanups, a bunch of various fixes for OMAP and tegra, and some for
 Freescale i.MX and even Qualcomm MSM.
 
 Note that there's also a patch on this branch to globally turn off
 -Wmaybe-uninitialized when building with -Os. It's been posted several
 times by Arnd and no dissent was raised, but nobody seemed interested
 to pick it up. So here it is, as the topmost patch.
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Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-critical fixes from Olof Johansson:
 "Here is a collection of fixes (and some intermixed cleanups) that were
  considered less important and thus not included in the later parts of
  the 3.9-rc cycle.

  It's a bit all over the map, contents wise.  A series of ux500 fixes
  and cleanups, a bunch of various fixes for OMAP and tegra, and some
  for Freescale i.MX and even Qualcomm MSM.

  Note that there's also a patch on this branch to globally turn off
  -Wmaybe-uninitialized when building with -Os.  It's been posted
  several times by Arnd and no dissent was raised, but nobody seemed
  interested to pick it up.  So here it is, as the topmost patch."

* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
  Turn off -Wmaybe-uninitialized when building with -Os
  ARM: orion5x: include linux/cpu.h
  ARM: tegra: call cpu_do_idle from C code
  ARM: u300: fix ages old copy/paste bug
  ARM: OMAP2+: add dependencies on ARCH_MULTI_V6/V7
  ARM: tegra: solve adr range issue with THUMB2_KERNEL enabled
  ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled
  ARM: tegra: fix build error when THUMB2_KERNEL enabled
  ARM: msm: Fix uncompess.h tx underrun check
  ARM: vexpress: Remove A9 PMU compatible values for non-A9 platforms
  ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro
  ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS"
  ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD"
  ARM: mach-imx: mach-imx6q: Fix sparse warnings
  ARM: mach-imx: src: Include "common.h
  ARM: mach-imx: gpc: Include "common.h"
  ARM: mach-imx: avic: Staticize *avic_base
  ARM: mach-imx: tzic: Staticize *tzic_base
  ARM: mach-imx: clk: Include "clk.h"
  ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops
  ...
2013-05-02 08:56:55 -07:00
Linus Torvalds 3ed1c478ef Power management and ACPI updates for 3.10-rc1
- ARM big.LITTLE cpufreq driver from Viresh Kumar.
 
 - exynos5440 cpufreq driver from Amit Daniel Kachhap.
 
 - cpufreq core cleanup and code consolidation from Viresh Kumar and
   Stratos Karafotis.
 
 - cpufreq scalability improvement from Nathan Zimmer.
 
 - AMD "frequency sensitivity feedback" powersave bias for the ondemand
   cpufreq governor from Jacob Shin.
 
 - cpuidle code consolidation and cleanups from Daniel Lezcano.
 
 - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.
 
 - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim,
   Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.
 
 - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
   Yasuaki Ishimatsu, and Rafael J. Wysocki.
 
 - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements
   from Rafael J. Wysocki and Andy Shevchenko.
 
 /
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Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael J Wysocki:

 - ARM big.LITTLE cpufreq driver from Viresh Kumar.

 - exynos5440 cpufreq driver from Amit Daniel Kachhap.

 - cpufreq core cleanup and code consolidation from Viresh Kumar and
   Stratos Karafotis.

 - cpufreq scalability improvement from Nathan Zimmer.

 - AMD "frequency sensitivity feedback" powersave bias for the ondemand
   cpufreq governor from Jacob Shin.

 - cpuidle code consolidation and cleanups from Daniel Lezcano.

 - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.

 - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv
   Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.

 - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
   Yasuaki Ishimatsu, and Rafael J Wysocki.

 - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from
   Rafael J Wysocki and Andy Shevchenko.

* tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits)
  cpufreq: Revert incorrect commit 5800043
  cpufreq: MAINTAINERS: Add co-maintainer
  cpuidle: add maintainer entry
  ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points
  ARM: s3c64xx: cpuidle: use init/exit common routine
  cpufreq: pxa2xx: initialize variables
  ACPI: video: correct acpi_video_bus_add error processing
  SH: cpuidle: use init/exit common routine
  ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y
  ACPI: Fix wrong parameter passed to memblock_reserve
  cpuidle: fix comment format
  pnp: use %*phC to dump small buffers
  isapnp: remove debug leftovers
  ARM: imx: cpuidle: use init/exit common routine
  ARM: davinci: cpuidle: use init/exit common routine
  ARM: kirkwood: cpuidle: use init/exit common routine
  ARM: calxeda: cpuidle: use init/exit common routine
  ARM: tegra: cpuidle: use init/exit common routine for tegra3
  ARM: tegra: cpuidle: use init/exit common routine for tegra2
  ARM: OMAP4: cpuidle: use init/exit common routine
  ...
2013-04-30 15:21:02 -07:00
Linus Torvalds 362ed48dee The common clock framework changes for 3.10 include many fixes for
existing platforms, as well as adoption of the framework by new
 platforms and devices.  Some long-needed fixes to the core framework are
 here as well as new features such as improved initialization of clocks
 from DT as well as framework reentrancy for nested clock operations.
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Merge tag 'clk-for-linus-3.10' of git://git.linaro.org/people/mturquette/linux

Pull clock framework update from Michael Turquette:
 "The common clock framework changes for 3.10 include many fixes for
  existing platforms, as well as adoption of the framework by new
  platforms and devices.

  Some long-needed fixes to the core framework are here as well as new
  features such as improved initialization of clocks from DT as well as
  framework reentrancy for nested clock operations."

* tag 'clk-for-linus-3.10' of git://git.linaro.org/people/mturquette/linux: (44 commits)
  clk: add clk_ignore_unused option to keep boot clocks on
  clk: ux500: fix mismatched types
  clk: vexpress: Add separate SP810 driver
  clk: si5351: make clk-si5351 depend on CONFIG_OF
  clk: export __clk_get_flags for modular clock providers
  clk: vt8500: Missing breaks in vtwm_pll_round_rate/_set_rate.
  clk: sunxi: Unify oscillator clock
  clk: composite: allow fixed rates & fixed dividers
  clk: composite: rename 'div' references to 'rate'
  clk: add si5351 i2c common clock driver
  clk: add device tree fixed-factor-clock binding support
  clk: Properly handle notifier return values
  clk: ux500: abx500: Define clock tree for ab850x
  clk: ux500: Add support for sysctrl clocks
  clk: mvebu: Fix valid value range checking for cpu_freq_select
  clk: Fixup locking issues for clk_set_parent
  clk: Fixup errorhandling for clk_set_parent
  clk: Restructure code for __clk_reparent
  clk: sunxi: drop an unnecesary kmalloc
  clk: sunxi: drop CLK_IGNORE_UNUSED
  ...
2013-04-29 16:43:54 -07:00
Olof Johansson afcf7924ec Merge branch 'fixes' into next/cleanup
Merging in fixes since there's a conflict in the omap4 clock tables caused by
it.

* fixes: (245 commits)
  ARM: highbank: fix cache flush ordering for cpu hotplug
  ARM: OMAP4: hwmod data: make 'ocp2scp_usb_phy_phy_48m" as the main clock
  arm: mvebu: Fix the irq map function in SMP mode
  Fix GE0/GE1 init on ix2-200 as GE0 has no PHY
  ARM: S3C24XX: Fix interrupt pending register offset of the EINT controller
  ARM: S3C24XX: Correct NR_IRQS definition for s3c2440
  ARM i.MX6: Fix ldb_di clock selection
  ARM: imx: provide twd clock lookup from device tree
  ARM: imx35 Bugfix admux clock
  ARM: clk-imx35: Bugfix iomux clock
  + Linux 3.9-rc6

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

Conflicts:
	arch/arm/mach-omap2/cclock44xx_data.c
2013-04-28 15:01:12 -07:00
Rafael J. Wysocki 885f925eef Merge branch 'pm-cpufreq'
* pm-cpufreq: (57 commits)
  cpufreq: MAINTAINERS: Add co-maintainer
  cpufreq: pxa2xx: initialize variables
  ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y
  cpufreq: cpu0: Put cpu parent node after using it
  cpufreq: ARM big LITTLE: Adapt to latest cpufreq updates
  cpufreq: ARM big LITTLE: put DT nodes after using them
  cpufreq: Don't call __cpufreq_governor() for drivers without target()
  cpufreq: exynos5440: Protect OPP search calls with RCU lock
  cpufreq: dbx500: Round to closest available freq
  cpufreq: Call __cpufreq_governor() with correct policy->cpus mask
  cpufreq / intel_pstate: Optimize intel_pstate_set_policy
  cpufreq: OMAP: instantiate omap-cpufreq as a platform_driver
  arm: exynos: Enable OPP library support for exynos5440
  cpufreq: exynos: Remove error return even if no soc is found
  cpufreq: exynos: Add cpufreq driver for exynos5440
  cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor
  cpufreq: ondemand: allow custom powersave_bias_target handler to be registered
  cpufreq: convert cpufreq_driver to using RCU
  cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq
  cpufreq: sparc: move cpufreq driver to drivers/cpufreq
  ...

Conflicts:
	MAINTAINERS (with commit a8e39c3 from pm-cpuidle)
	drivers/cpufreq/cpufreq_governor.h (with commit beb0ff3)
2013-04-28 02:10:46 +02:00
Rafael J. Wysocki e4f5a3adc4 Merge branch 'pm-cpuidle'
* pm-cpuidle: (51 commits)
  cpuidle: add maintainer entry
  ARM: s3c64xx: cpuidle: use init/exit common routine
  SH: cpuidle: use init/exit common routine
  cpuidle: fix comment format
  ARM: imx: cpuidle: use init/exit common routine
  ARM: davinci: cpuidle: use init/exit common routine
  ARM: kirkwood: cpuidle: use init/exit common routine
  ARM: calxeda: cpuidle: use init/exit common routine
  ARM: tegra: cpuidle: use init/exit common routine for tegra3
  ARM: tegra: cpuidle: use init/exit common routine for tegra2
  ARM: OMAP4: cpuidle: use init/exit common routine
  ARM: shmobile: cpuidle: use init/exit common routine
  ARM: tegra: cpuidle: use init/exit common routine
  ARM: OMAP3: cpuidle: use init/exit common routine
  ARM: at91: cpuidle: use init/exit common routine
  ARM: ux500: cpuidle: use init/exit common routine
  cpuidle: make a single register function for all
  ARM: ux500: cpuidle: replace for_each_online_cpu by for_each_possible_cpu
  cpuidle: remove en_core_tk_irqen flag
  ARM: OMAP3: remove cpuidle_wrap_enter
  ...
2013-04-28 01:54:49 +02:00
Daniel Lezcano 54a4644b7a ARM: imx: cpuidle: use init/exit common routine
The code intializes the cpuidle driver at different places.
The cpuidle driver for :
  * imx5 : is in the pm-imx5.c, the init function is in cpuidle.c
  * imx6 : is in cpuidle-imx6q.c, the init function is in cpuidle.c
           and cpuidle-imx6q.c

Instead of having the cpuidle code spread across different files,
let's create a driver for each SoC and use the common register function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-23 13:45:23 +02:00
Daniel Lezcano 554c06ba3e cpuidle: remove en_core_tk_irqen flag
The en_core_tk_irqen flag is set in all the cpuidle driver which
means it is not necessary to specify this flag.

Remove the flag and the code related to it.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>  # for mach-omap2/*
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-23 13:45:22 +02:00
Russell King bca7a5a049 ARM: cpu hotplug: remove majority of cache flushing from platforms
Remove the majority of cache flushing calls from the individual platform
files.  This is now handled by the core code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-18 20:08:04 +01:00
Olof Johansson 567b1b0839 The imx soc changes for 3.10:
* Enable anatop, well bisa and RBC for suspend to optimize the power
   consumption a little bit
 * Clock changes for TVE, LDB, PATA, SRTC support
 * Add System Reset Controller (SRC) support for imx5 and imx6
 * Add initial imx6dl support based on imx6q code
 * Kconfig for cpufreq-cpu0, defconfig updates and few other changes
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Merge tag 'imx-soc-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc2

From Shawn Guo:
The imx soc changes for 3.10:

* Enable anatop, well bisa and RBC for suspend to optimize the power
  consumption a little bit
* Clock changes for TVE, LDB, PATA, SRTC support
* Add System Reset Controller (SRC) support for imx5 and imx6
* Add initial imx6dl support based on imx6q code
* Kconfig for cpufreq-cpu0, defconfig updates and few other changes

* tag 'imx-soc-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6: (275 commits)
  ARM i.MX53: set CLK_SET_RATE_PARENT flag on the tve_ext_sel clock
  ARM i.MX53: tve_di clock is not part of the CCM, but of TVE
  ARM i.MX53: make tve_ext_sel propagate rate change to PLL
  ARM i.MX53: Remove unused tve_gate clkdev entry
  ARM i.MX5: Remove tve_sel clock from i.MX53 clock tree
  ARM: i.MX5: Add PATA and SRTC clocks
  ARM: imx: do not bring up unavailable cores
  ARM: imx: add initial imx6dl support
  ARM: imx1: mm: add call to mxc_device_init
  ARM: imx_v4_v5_defconfig: Add CONFIG_GPIO_SYSFS
  ARM: imx_v6_v7_defconfig: Select CONFIG_PERF_EVENTS
  ARM: i.MX53 Add the cko1, cko2 clock outputs.
  staging: drm/imx: Use SRC to reset IPU
  ARM i.MX6q: Add GPU, VPU, IPU, and OpenVG resets to System Reset Controller (SRC)
  ARM: imx: do not use regmap_read for ANADIG_DIGPROG
  ARM i.MX6q: set the LDB serial clock parent to the video PLL
  ARM i.MX6q: Add audio/video PLL post dividers for i.MX6q rev 1.1
  ARM i.MX6q: fix ldb di divider and selector clocks
  ARM i.MX53: fix ldb di divider and selector clocks
  ARM i.MX: Add imx_clk_divider_flags and imx_clk_mux_flags
  ...

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

Trivial change/change conflict in arch/arm/mach-imx/mach-imx6q.c resolved.
2013-04-12 23:55:05 -07:00
Philipp Zabel 80f72d2d33 ARM i.MX53: set CLK_SET_RATE_PARENT flag on the tve_ext_sel clock
Use imx_clk_mux_flags to set the appropriate flags for the TVE
selector clock. This is needed so tve_clk rate changes can propagate
up to pll4_sw.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:17 +08:00
Philipp Zabel d24de49523 ARM i.MX53: tve_di clock is not part of the CCM, but of TVE
Remove the tve_di clock from the CCM clock tree. It will be provided
by the Television Encoder driver, as this clock is an output signal
of the TVE module.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:16 +08:00
Philipp Zabel f550e70175 ARM i.MX53: make tve_ext_sel propagate rate change to PLL
This is needed so the Television Encoder driver can set the rate
on tve_clk and have it propagated up to pll4_sw.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:16 +08:00
Philipp Zabel 866f2f0d8d ARM i.MX53: Remove unused tve_gate clkdev entry
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:16 +08:00
Philipp Zabel 3f487bed1b ARM i.MX5: Remove tve_sel clock from i.MX53 clock tree
On i.MX53, there is only tve_ext_sel.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:16 +08:00
Sascha Hauer 5d530bb0ad ARM: i.MX5: Add PATA and SRTC clocks
This adds the clock gates and the binding documentation
for PATA and SRTC.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:15 +08:00
Shawn Guo dc13ba2950 ARM: imx: do not bring up unavailable cores
The i.MX6 Quad can be fused as i.MX6 Dual chip, and similarly i.MX6
DualLite can be fused as i.MX6 Solo.  The actual number of available
cores can be found out from SCU.

Since we do not reflect the fusing thing in device tree, the function
arm_dt_init_cpu_maps() will always call set_cpu_possible(true) for 4
cores on i.MX6 Quad/Dual and 2 cores for i.MX6 DualLite/Solo.  This
causes failures when kernel tries to bring those unavailable cores
online.  For example, the following failure message will be seen when
booting an i.MX6 Solo chip.

  CPU1: failed to come online

Though kernel will still boot fine, the message is somehow annoying.
Let's get rid of it by calling set_cpu_possible(false) on those
unavailable cores.

While at it, the set_cpu_possible(true) for available cores is removed,
since it's already been done in arm_dt_init_cpu_maps().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:15 +08:00
Shawn Guo 3c03a2fed6 ARM: imx: add initial imx6dl support
The i.MX6 DualLite/Solo is another i.MX6 family SoC, which is highly
compatible with i.MX6 Quad/Dual.  And that's why we choose to support
it using imx6q code with cpu_is_imx6dl() check when necessary.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:15 +08:00
Gwenhael Goavec-Merou 9a37ac481a ARM: imx1: mm: add call to mxc_device_init
mxc_device_init() is mandatory for mxc_aips and mxc_ahb bus registration, needed
as parents, at least, for gpio and dma.

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:15 +08:00
Martin Fuzzey 04b41e84ff ARM: i.MX53 Add the cko1, cko2 clock outputs.
These two clocks connect to external pins and can be muxed to
various internal clocks.
They are typically used either for debugging or to provide
clocks to external chips (eg audio codecs).

Currently only the selectable clocks that already exist in the clock tree
have been added.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:14 +08:00
Philipp Zabel 02985b9463 ARM i.MX6q: Add GPU, VPU, IPU, and OpenVG resets to System Reset Controller (SRC)
The SRC has auto-deasserting reset bits that control reset lines to
the GPU, VPU, IPU, and OpenVG IP modules. This patch adds a reset
controller that can be controlled by those devices using the
reset controller API.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:13 +08:00
Shawn Guo 7006ba24c2 ARM: imx: do not use regmap_read for ANADIG_DIGPROG
Function imx_anatop_get_digprog() that reads register ANADIG_DIGPROG is
called to identify silicon version.  Users might query silicon version
earlier than regmap subsystem is ready.  For example, imx6q clock driver
query revision in mx6q_clocks_init(), where regmap is not initialized
yet.

Change imx_anatop_get_digprog() to map anatop block and read
ANADIG_DIGPROG in the native way, so that the function can work at very
early stage.

While at it, let's move imx_print_silicon_rev() back to
imx6q_timer_init() to have the message show up a little earlier.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:13 +08:00
Philipp Zabel 32f3b8da22 ARM i.MX6q: set the LDB serial clock parent to the video PLL
On i.MX6q revision 1.1 and later, set the video PLL as parent for
the LDB clock branch. On revision 1.0, the video PLL is useless
due to missing dividers, so keep the default parent (mmdc_ch1_axi).

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:13 +08:00
Philipp Zabel 2df1d026ed ARM i.MX6q: Add audio/video PLL post dividers for i.MX6q rev 1.1
Query silicon revision to determine clock tree and add post
dividers for newer revisions.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:28:12 +08:00
Philipp Zabel d19dacb732 ARM i.MX6q: fix ldb di divider and selector clocks
Use imx_clk_mux_flags and imx_clk_divider_flags to set the appropriate
flags for the LDB display interface divider and selector clocks.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:45 +08:00
Philipp Zabel cc7b633909 ARM i.MX53: fix ldb di divider and selector clocks
Use imx_clk_mux_flags and imx_clk_divider_flags to set the appropriate
flags for the LDB display interface divider and selector clocks.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:45 +08:00
Philipp Zabel 3ce921702b ARM i.MX: Add imx_clk_divider_flags and imx_clk_mux_flags
The default is for dividers to set CLK_SET_PARENT_RATE and for muxes to
not set that flag. In the LDB clock tree, we need the opposite, so add
functions to create divider and mux clocks with configurable flags.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:44 +08:00
Philipp Zabel b1a3582dc6 ARM i.MX6q: export imx6q_revision
So it can be used in clk-imx6q.c for revision dependent clock tree setup.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:44 +08:00
Markus Pargmann 6866310423 ARM: imx27, imx5: Add kconfig selects for cpufreq-cpu0
There are some config options not selected by imx27 and imx5 that are
necessary to use the cpufreq-cpu0 driver.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:44 +08:00
Philipp Zabel 8ecb167f49 ARM i.MX53: Add GPU clocks to clock tree
This patch adds the missing GPU2D and GPU3D mux and gate clocks,
and the graphics arbiter gate clock.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:44 +08:00
Fabio Estevam fcc4f9fc5b ARM: mach-imx: anatop: Include "common.h"
Fix the following sparse warnings:

arch/arm/mach-imx/anatop.c:56:6: warning: symbol 'imx_anatop_pre_suspend' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:62:6: warning: symbol 'imx_anatop_post_resume' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:68:6: warning: symbol 'imx_anatop_usb_chrg_detect_disable' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:78:5: warning: symbol 'imx_anatop_get_digprog' was not declared. Should it be static?
arch/arm/mach-imx/anatop.c:86:13: warning: symbol 'imx_anatop_init' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:43 +08:00
Anson Huang 263475d4e0 ARM: imx: enable RBC to support anatop LPM mode
RBC is to control whether some ANATOP sub modules
can enter lpm mode when SOC is into STOP mode, if
RBC is enabled and PMIC_VSTBY_REQ is set, ANATOP
will have below behaviors:

1. Digital LDOs(CORE, SOC and PU) are bypassed;
2. Analog LDOs(1P1, 2P5, 3P0) are disabled;

As the 2P5 is necessary for DRAM IO pre-drive in
STOP mode, so we need to enable weak 2P5 in STOP
mode when 2P5 LDO is disabled.

For RBC settings, there are some rules as below
due to hardware design:

1. All interrupts must be masked during operating
   RBC registers;
2. At least 2 CKIL(32K) cycles is needed after the
   RBC setting is changed.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:43 +08:00
Anson Huang e7b82d645d ARM: imx: enable periphery well bias for suspend
Enable periphery charge pump for well biasing
at suspend to reduce periphery leakage.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:43 +08:00
Anson Huang e95dddb34c ARM: imx: enable anatop suspend/resume
Anatop module have sereval configurations for user
to reduce the power consumption in suspend, provide
suspend/resume interface for further use and enable
fet_odrive to reduce CORE LDO leakage during suspend.

As we have a common anatop file, remove all the operations
of anatop module in other files, use anatop interfaces to
do that.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:42 +08:00
Shawn Guo a862d88d3f The imx cleanup for 3.10:
* Clean up a couple of unneeded function declarations
 * Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
   as the replacement
 * Remove platform ahci support
 * Clean up unused ARCH/MACH Kconfig symbols
 * Remove a couple of unused files
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Merge tag 'imx-cleanup-3.10' into imx/soc

The imx cleanup for 3.10:

* Clean up a couple of unneeded function declarations
* Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
  as the replacement
* Remove platform ahci support
* Clean up unused ARCH/MACH Kconfig symbols
* Remove a couple of unused files
2013-04-12 19:00:28 +08:00
Olof Johansson 83c15f4c05 Merge branch 'depends/clk-for-3.10' into next/cleanup
Bringin in clk subsystem dependencies needed by sunxi.

* depends/clk-for-3.10: (26 commits)
  clk: sunxi: drop an unnecesary kmalloc
  clk: sunxi: drop CLK_IGNORE_UNUSED
  clk: sunxi: Add support for AXI, AHB, APB0 and APB1 gates
  clk: divider: Introduce CLK_DIVIDER_ALLOW_ZERO flag
  clk: mvebu: Use common of_clk_init() function
  clk: fix clk_mux::flags kerneldoc
  clk: allow reentrant calls into the clk framework
  clk: abstract locking out into helper functions
  clk: zynq: Add missing zynq clk header
  clk: sunxi: rename compatible strings
  arm: sunxi: Add useful information about sunxi clocks
  clk: arm: sunxi: Add a new clock driver for sunxi SOCs
  clk: ux500: Fix prcmu clocks registration
  ARM: imx: adapt clk_busy_mux to new clk_mux struct
  clk: Add composite clock type
  clk: add table lookup to mux
  clk: Fix incorrect return type in clk.c
  clk: prima2: fix return value check in sirfsoc_of_clk_init()
  clk:SPEAr1340: Correct parent clock configuration
  documentation: clk: fix couple of misspelling
  ...
2013-04-11 03:38:03 -07:00
Olof Johansson d6e911b599 The imx cleanup for 3.10:
* Clean up a couple of unneeded function declarations
 * Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
   as the replacement
 * Remove platform ahci support
 * Clean up unused ARCH/MACH Kconfig symbols
 * Remove a couple of unused files
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Merge tag 'imx-cleanup-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup

From Shawn Guo:
The imx cleanup for 3.10:

* Clean up a couple of unneeded function declarations
* Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well
  as the replacement
* Remove platform ahci support
* Clean up unused ARCH/MACH Kconfig symbols
* Remove a couple of unused files

* tag 'imx-cleanup-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: i.MX: remove unused ARCH_* configs
  ARM i.MX53: remove platform ahci support
  ARM: imx: remove mx6q.h
  ARM: imx: remove Makefile.boot
  ARM: imx: clk-imx27: Do not register peripheral clock for SSI
  ARM: imx: avic: Move avic_saved_mask_reg under CONFIG_PM
  ARM: imx: Remove cpufreq driver
  ARM: imx: remove pl310_get_save_ptr() declaration
  ARM: imx: remove duplicated function declaration

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-11 03:06:33 -07:00
Stephen Boyd 4c3ffffdbc ARM: Push selects for TWD/SCU into machine entries
The TWD and SCU configs are selected by default as long as
MSM_SCORPIONMP is false and/or MCT is false. Implementing the
logic this way certainly saves lines in the Kconfig but it
precludes those machines which select MSM_SCORPIONMP or MCT from
participating in the single zImage effort because when those
machines are combined with other SMP capable machines the TWD and
SCU are no longer selected by default.

Push the select out to the machine entries so that we can compile
these machines together and still select the appropriate configs.

Cc: Barry Song <baohua.song@csr.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-09 21:30:24 +02:00
Philipp Zabel bd3d924d71 ARM i.MX5: Add System Reset Controller (SRC) support for i.MX51 and i.MX53
The SRC in i.MX51 and i.MX53 is similar to the one in i.MX6q minus
the IPU2 reset line and multi core CPU reset/enable bits.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 22:53:37 +08:00
Markus Pargmann 371b3f18c5 ARM: imx5 DT init cpufreq-cpu0 device
Add cpufreq-cpu0 platform device for imx5 DT init and register the clock
for imx5.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 22:52:57 +08:00
Markus Pargmann b91af27a3c ARM: imx27 DT init cpufreq-cpu0 device
Adds cpufreq-cpu0 platform device for imx27 DT init and adds a clock
registration for cpufreq-cpu0 device.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 22:52:56 +08:00
Philipp Zabel 4438a6a1cc ARM i.MX5: Move IPU clock lookups into device tree
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 22:52:55 +08:00
Fabio Estevam c20736f1ab ARM: mx27: Replace clk_register_clkdev with clock DT lookup
Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 22:52:52 +08:00
Arnd Bergmann 44c0d23775 Linux 3.9-rc5
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Merge tag 'v3.9-rc5' into next/cleanup

This is a dependency for the mxs/cleanup branch.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-09 15:29:43 +02:00
Paul Bolle 3442a7b51d ARM: i.MX: remove unused ARCH_* configs
This removes the unused Kconfig options ARCH_MX5, ARCH_MX51,
ARCH_MX53 and MACH_MX21.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 21:07:36 +08:00
Sascha Hauer e27da53bae ARM i.MX53: remove platform ahci support
The i.MX53 ahci platform support is unused in mainline. To demotivate
people using it just remove it from the tree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 21:07:20 +08:00
Dirk Behme e8094b2c17 ARM i.MX6: Fix ldb_di clock selection
According to the recent i.MX6 Quad technical reference manual, mode 0x4 (100b)
of the CCM_CS2DCR register (address 0x020C402C) bits [11-9] and [14-12] select
the PLL3 clock, and not the PLL3 PFD1 540M clock. In our code, the PLL3 root
clock is named 'pll3_usb_otg', select this instead of the 540M clock.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 19:48:09 +08:00
Shawn Guo 2bb4b70b1d ARM: imx: provide twd clock lookup from device tree
While booting from device tree, imx6q used to provide twd clock lookup
by calling clk_register_clkdev() in clock driver.  However, the commit
bd60345 (ARM: use device tree to get smp_twd clock) forces DT boot to
look up the clock from device tree.  It causes the failure below when
twd driver tries to get the clock, and hence kernel has to calibrate the
local timer frequency.

 smp_twd: clock not found -2
 ...
 Calibrating local timer... 396.13MHz.

Fix the regression by providing twd clock lookup from device tree, and
remove the unused twd clk_register_clkdev() call from clock driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 19:46:31 +08:00
Markus Pargmann 75498083e2 ARM: imx35 Bugfix admux clock
The admux clock seems to be the audmux clock as tests show. audmux does
not work without this clock enabled. Currently imx35 does not register a
clock device for audmux. This patch adds this registration. imx-audmux
driver already handles a clock device, so no changes are necessary
there.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 19:46:30 +08:00
Markus Pargmann cab1e0a36c ARM: clk-imx35: Bugfix iomux clock
This patch enables iomuxc_gate clock. It is necessary to be able to
reconfigure iomux pads. Without this clock enabled, the
clk_disable_unused function will disable this clock and the iomux pads
are not configurable anymore. This happens at every boot. After a reboot
(watchdog system reset) the clock is not enabled again, so all iomux pad
reconfigurations in boot code are without effect.

The iomux pads should be always configurable, so this patch always
enables it.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-09 19:46:30 +08:00
Paul Bolle d95c785500 mfd: Remove twelve unused Kconfig symbols
Twelve Kconfig symbols, all related to WM8350, WM8351, and WM8352, are
unused. Commit 19d57ed5a3 ("mfd: Remove
custom wm8350 cache implementation") removed all their (actual) users.
Remove these symbols too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-09 10:14:00 +02:00
Arnd Bergmann 797b3a9ee7 Merge branch 'gic/cleanup' into next/soc2
Both zynq and shmobile have conflicts against the gic cleanup
series, resolved here.

Conflicts:
	arch/arm/mach-shmobile/smp-emev2.c
	arch/arm/mach-shmobile/smp-r8a7779.c
	arch/arm/mach-shmobile/smp-sh73a0.c
	arch/arm/mach-zynq/platsmp.c
	drivers/gpio/gpio-pl061.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-08 18:59:19 +02:00
Arnd Bergmann c985d7e325 Merge branch 'zynq/core-smp' of git://git.xilinx.com/linux-xlnx into next/soc2
From Michal Simek <michal.simek@xilinx.com>:

This branch is based on zynq/clksrc/cleanup parts because
there are some dependencies on moving timer to generic location.

I could based it on standard Linux tagged version but you will get
several conflicts you will have to resolve.
If you are OK to resolving these problems, please let me know
I will create another branch with core-smp changes which are not based
on zynq/clksrc/cleanup branch.

* 'zynq/core-smp' of git://git.xilinx.com/linux-xlnx:
  arm: zynq: Add hotplug support
  arm: zynq: Add smp support
  arm: zynq: Add smp_twd timer
  arm: zynq: Get rid of xilinx function prefix
  arm: zynq: Add support for system reset
  arm: zynq: Move slcr initialization to separate file
  arm: zynq: Load scu baseaddress at run time

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-08 18:42:16 +02:00
Rafael J. Wysocki f69e44b205 Merge branch 'pm-cpuidle-next' into linux-next
* pm-cpuidle-next:
  cpuidle: imx6: remove timer broadcast initialization
  cpuidle: OMAP4: remove timer broadcast initialization
  cpuidle: ux500: remove timer broadcast initialization
  cpuidle: initialize the broadcast timer framework
  timer: move enum definition out of ifdef section
  cpuidle: kirkwood: fix coccicheck warnings
  cpuidle / kirkwood: remove redundant Kconfig option
  cpuidle / ux500 : use CPUIDLE_FLAG_TIMER_STOP flag
  cpuidle / imx6 : use CPUIDLE_FLAG_TIMER_STOP flag
  cpuidle / omap4 : use CPUIDLE_FLAG_TIMER_STOP flag
  cpuidle : handle clockevent notify from the cpuidle framework
2013-04-08 12:32:07 +02:00
Paul Bolle 4f5ef62ced ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro
Commit 2d66c78035 ("cpuimx27 and mbimx27:
allow fine control of UART4 and SDHC2 usage") added the Kconfig symbol
MACH_EUKREA_CPUIMX27_USEUART4. But it forgot to prepend CONFIG_ to the
use of its macro. Add that prefix now.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-03 16:50:54 +08:00
Olof Johansson c2573077df Merge branch 'gic' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 into next/cleanup
* 'gic' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  irqchip: gic: Perform the gic_secondary_init() call via CPU notifier
  irqchip: gic: Call handle_bad_irq() directly
  arm: Move chained_irq_(enter|exit) to a generic file
  arm: Move the set_handle_irq and handle_arch_irq declarations to asm/irq.h
  + Linux 3.9-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-02 10:59:28 -07:00
Shawn Guo 50dc3ef536 ARM: imx: remove mx6q.h
Those stuff defined in mx6q.h is used nowhere now.  Remove the header.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-02 22:06:01 +08:00
Shawn Guo 585b9f0bfd ARM: imx: remove Makefile.boot
Since we have converted IMX to multiplatform build, Makefile.boot is not
used anyway.  Remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-02 21:51:27 +08:00
Viresh Kumar eb2f50ff93 cpufreq: drivers: Remove unnecessary assignments of policy-> members
Some assignments of policy-> min/max/cur/cpuinfo.min_freq/cpuinfo.max_freq
aren't required as part of it is done by cpufreq driver or cpufreq core.

Remove them.

At some places we merge multiple lines together too.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-02 15:26:32 +02:00
Viresh Kumar b43a7ffbf3 cpufreq: Notify all policy->cpus in cpufreq_notify_transition()
policy->cpus contains all online cpus that have single shared clock line. And
their frequencies are always updated together.

Many SMP system's cpufreq drivers take care of this in individual drivers but
the best place for this code is in cpufreq core.

This patch modifies cpufreq_notify_transition() to notify frequency change for
all cpus in policy->cpus and hence updates all users of this API.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-02 15:24:00 +02:00
Fabio Estevam 9591b8204b ARM: imx: clk-imx27: Do not register peripheral clock for SSI
imx ssi block has two types of clocks:

- ipg: bus clock, the clock needed for accessing registers.
- per: peripheral clock, the clock needed for generating the bit rate.

Currently ssi driver only supports slave mode and thus need only to handle
the ipg clock, because the peripheral clock comes from the master codec.

Only register the ipg clock and do not register the peripheral clock for ssi

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-02 20:43:21 +08:00
Fabio Estevam 5fe839d997 ARM: imx: avic: Move avic_saved_mask_reg under CONFIG_PM
When building a kernel with CONFIG_PM undefined, the following warning happens:

arch/arm/mach-imx/avic.c:57:12: warning: 'avic_saved_mask_reg' defined but not used [-Wunused-variable]

Move avic_saved_mask_reg definition inside the '#ifdef CONFIG_PM' block to
avoid the warning.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-02 20:43:07 +08:00
Shawn Guo 3ed628a812 Merge remote-tracking branch 'arm-soc/clksrc/cleanup' into mxs/cleanup 2013-04-01 16:29:56 +08:00
Fabio Estevam f8c11b2b36 ARM: mach-imx: mach-imx6q: Fix sparse warnings
Fix the following sparse warnings:

arch/arm/mach-imx/mach-imx6q.c:60:6: warning: symbol 'imx6q_restart' was not declared. Should it be static?
arch/arm/mach-imx/mach-imx6q.c:223:24: warning: symbol 'imx6q_cpufreq_pdev' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:52 +08:00
Fabio Estevam 0989857625 ARM: mach-imx: src: Include "common.h
Fix the following sparse warnings:

arch/arm/mach-imx/src.c:28:6: warning: symbol 'imx_enable_cpu' was not declared. Should it be static?
arch/arm/mach-imx/src.c:39:6: warning: symbol 'imx_set_cpu_jump' was not declared. Should it be static?
arch/arm/mach-imx/src.c:46:6: warning: symbol 'imx_src_prepare_restart' was not declared. Should it be static?
arch/arm/mach-imx/src.c:59:13: warning: symbol 'imx_src_init' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:52 +08:00
Fabio Estevam 9a67a6fd36 ARM: mach-imx: gpc: Include "common.h"
Fix the following sparse warnings:

arch/arm/mach-imx/gpc.c:29:6: warning: symbol 'imx_gpc_pre_suspend' was not declared. Should it be static?
arch/arm/mach-imx/gpc.c:43:6: warning: symbol 'imx_gpc_post_resume' was not declared. Should it be static?
arch/arm/mach-imx/gpc.c:71:6: warning: symbol 'imx_gpc_mask_all' was not declared. Should it be static?
arch/arm/mach-imx/gpc.c:83:6: warning: symbol 'imx_gpc_restore_all' was not declared. Should it be static?
arch/arm/mach-imx/gpc.c:122:13: warning: symbol 'imx_gpc_init' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:52 +08:00
Fabio Estevam ae00ac76fa ARM: mach-imx: avic: Staticize *avic_base
Fix the following sparse warning:

arch/arm/mach-imx/avic.c:54:14: warning: symbol 'avic_base' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:51 +08:00
Fabio Estevam 516e89d7d5 ARM: mach-imx: tzic: Staticize *tzic_base
Fix the following sparse warning:

arch/arm/mach-imx/tzic.c:52:14: warning: symbol 'tzic_base' was not declared. Should it be static?

Also, remove the comment, as it does not apply for kernels newer than 3.2.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:51 +08:00
Fabio Estevam 41921c13c3 ARM: mach-imx: clk: Include "clk.h"
Fix the following sparse warning:

arch/arm/mach-imx/clk.c:3:1: warning: symbol 'imx_ccm_lock' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:51 +08:00
Fabio Estevam e6d7e6ca95 ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops
Fix the following sparse warning:

arch/arm/mach-imx/clk-busy.c:150:16: warning: symbol 'clk_busy_mux_ops' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:51 +08:00
Fabio Estevam bce344eae6 ARM: mach-imx: irq-common: Remove imx_irq_set_priority()
imx_irq_set_priority() is not used anywhere, so remove it.

This fixes the following sparse warnings:

arch/arm/mach-imx/irq-common.c:24:5: warning: symbol 'imx_irq_set_priority' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:50 +08:00
Fabio Estevam d7b8c030f6 ARM: mach-imx: clk-gate2: Include "clk.h"
Fix the following sparse warning:

arch/arm/mach-imx/clk-gate2.c:86:12: warning: symbol 'clk_register_gate2' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:50 +08:00
Fabio Estevam 191f162c40 ARM: mach-imx: clk-pllv2: Staticize clk_pllv2_ops
Fix the following sparse warning:

rch/arm/mach-imx/clk-pllv2.c:232:16: warning: symbol 'clk_pllv2_ops' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:50 +08:00
Fabio Estevam e9d8ab892e ARM: mach-imx: clk-pllv1: Staticize clk_pllv1_ops
Fix the following sparse warning:

arch/arm/mach-imx/clk-pllv1.c:81:16: warning: symbol 'clk_pllv1_ops' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:49 +08:00
Fabio Estevam 2256779622 ARM: mach-imx: cpu-imx5: Include "common.h"
Fix the following sparse warnings:

arch/arm/mach-imx/cpu-imx5.c:65:12: warning: symbol 'mx51_neon_fixup' was not declared. Should it be static?
arch/arm/mach-imx/cpu-imx5.c:99:5: warning: symbol 'mx53_revision' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:49 +08:00
Fabio Estevam 4355632c54 ARM: mach-imx: iomux-imx31: Staticize mxc_pin_alloc_map
Fix the following sparse warning:

arch/arm/mach-imx/iomux-imx31.c:43:15: warning: symbol 'mxc_pin_alloc_map' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:48 +08:00
Fabio Estevam eb7099be53 ARM: mach-imx: mm-imx3: Staticize imx3_init_l2x0()
Fix the following sparse warning:

arch/arm/mach-imx/mm-imx3.c:85:13: warning: symbol 'imx3_init_l2x0' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:48 +08:00
Fabio Estevam e7feaaa75d ARM: mach-imx: cpu: Include "common.h"
Fix the following sparse warnings:

arch/arm/mach-imx/cpu.c:10:6: warning: symbol 'mxc_set_cpu_type' was not declared. Should it be static?
arch/arm/mach-imx/cpu.c:15:6: warning: symbol 'imx_print_silicon_rev' was not declared. Should it be static?
arch/arm/mach-imx/cpu.c:24:13: warning: symbol 'imx_set_aips' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:48 +08:00
Markus Pargmann 180cb7d6ab ARM: imx: Remove cpufreq driver
The old cpufreq driver is not necessary anymore with DT and
cpufreq-cpu0.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:34 +08:00
Shawn Guo fda7f2267d ARM: imx: remove pl310_get_save_ptr() declaration
Commit a1f1c7e (arm/imx6q: add suspend/resume support) added
declaration for a non-existing function pl310_get_save_ptr() by
mistake.  Remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:34 +08:00
Shawn Guo 4e33a0634c ARM: imx: remove duplicated function declaration
Commit 13eed98 (arm/imx6q: add device tree machine support) added
duplicated function declaration for imx_enable_cpu() and
imx_set_cpu_jump().  Remove them.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:34 +08:00
Daniel Lezcano b6269efb14 cpuidle: imx6: remove timer broadcast initialization
The initialization is done from the cpuidle framework.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-01 01:10:28 +02:00
Daniel Lezcano 8de46eff65 cpuidle / imx6 : use CPUIDLE_FLAG_TIMER_STOP flag
Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework
to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering
this state.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-01 01:10:27 +02:00
Arnd Bergmann fb5d932ac2 The imx fixes for 3.9, take 4:
Running suspend/resume without no_console_suspend setting on kernel
 cmdline will likely makes system hang.  It causesd by the sync issue
 between imx_cpu_die() and imx_cpu_kill() call.  Fix the issue by
 synchronizing the calls using cpu jumping argument register which is
 free to use in kernel.
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Merge tag 'imx-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo <shawn.guo@linaro.org>:

The imx fixes for 3.9, take 4:

Running suspend/resume without no_console_suspend setting on kernel
cmdline will likely makes system hang.  It causesd by the sync issue
between imx_cpu_die() and imx_cpu_kill() call.  Fix the issue by
synchronizing the calls using cpu jumping argument register which is
free to use in kernel.

* tag 'imx-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: imx: fix sync issue between imx_cpu_die and imx_cpu_kill
  ARM: imx: add dependency check for DEBUG_IMX_UART_PORT

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-28 11:55:23 +01:00
Fabio Estevam a35e89ad91 ARM: imx: adapt clk_busy_mux to new clk_mux struct
Commit ce4f3313b0 (clk: add table lookup to mux) caused the following build
error on imx_v4_v5_defconfig/imx_v6_v7_defconfig:

arch/arm/mach-imx/clk-busy.c:172:11: error: 'struct clk_mux' has no member named 'width'

Fix it by passing the 'mask' field.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: shortened $SUBJECT line]
2013-03-27 08:35:18 -07:00
Catalin Marinas c0114709ed irqchip: gic: Perform the gic_secondary_init() call via CPU notifier
All the calls to gic_secondary_init() pass 0 as the first argument.
Since this function is called on each CPU when starting, it can be done
in a platform-independent way via a CPU notifier registered by the GIC
code.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Tested-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Barry Song <baohua.song@csr.com>
2013-03-26 16:12:02 +00:00
Shawn Guo 2f3edfd7e2 ARM: imx: fix sync issue between imx_cpu_die and imx_cpu_kill
There is a sync issue with hotplug operation.  It's possible that when
imx_cpu_kill gets running on primary core, the imx_cpu_die execution
on the core which is to be killed hasn't been finished yet.  The problem
will very likely be hit when running suspend without no_console_suspend
setting on kernel cmdline.

It uses cpu jumping argument register to sync imx_cpu_die and
imx_cpu_kill.  The register will be set in imx_cpu_die and imx_cpu_kill
will wait for the register being cleared to actually kill the cpu.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: <stable@vger.kernel.org>
2013-03-26 20:25:45 +08:00
Arnd Bergmann c06e51db93 Two small ARM i.MX fixes for v3.9-rc
- Fix i.MX25 DT compilation
 - Enable MAX clk on i.MX35
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Merge tag 'arm-imx-fixes-for-3.9-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes

From Sascha Hauer <s.hauer@pengutronix.de>:

Two small ARM i.MX fixes for v3.9-rc

- Fix i.MX25 DT compilation
- Enable MAX clk on i.MX35

* tag 'arm-imx-fixes-for-3.9-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM: i.MX35: enable MAX clock
  ARM: i.MX25: Fix DT compilation

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-15 15:31:20 +01:00
Sascha Hauer 5dc2eb7da1 ARM: i.MX35: enable MAX clock
The i.MX35 has two bits per clock gate which are decoded as follows:
      0b00 -> clock off
      0b01 -> clock is on in run mode, off in wait/doze
      0b10 -> clock is on in run/wait mode, off in doze
      0b11 -> clock is always on

The reset value for the MAX clock is 0b10.

The MAX clock is needed by the SoC, yet unused in the Kernel, so the
common clock framework will disable it during late init time. It will
only disable clocks though which it detects as being turned on. This
detection is made depending on the lower bit of the gate. If the reset
value has been altered by the bootloader to 0b11 the clock framework
will detect the clock as turned on, yet unused, hence it will turn it
off and the system locks up.

This patch turns the MAX clock on unconditionally making the Kernel
independent of the bootloader.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-03-15 14:52:54 +01:00
Sascha Hauer 42b8432842 ARM: i.MX25: Fix DT compilation
The i.MX25 DT machine descriptor calls a non existing imx25_timer_init()
function. This patch adds it to fix compilation.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-03-14 12:52:39 +01:00
Rob Herring da4a686a2c ARM: smp_twd: convert to use CLKSRC_OF init
Now that we have OF based init with CLKSRC_OF, convert smp_twd init
function to use it and covert all callers of
twd_local_timer_of_register.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-omap@vger.kernel.org
Cc: spear-devel@list.st.com
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-11 08:42:08 -05:00
Shawn Guo 395816623d ARM: imx: pll1_sys should be an initial on clk
We always boot from PLL1, so let's have pll1_sys in the clks_init_on
list to have clk prepare/enable use count match the hardware status,
so that drivers managing pll1_sys like cpufreq can get the use count
right from the start.

Reported-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-11 10:44:40 +08:00
Nicolas Pitre b4e6153704 ARM: mach-imx: move early resume code out of the .data section
Building the kernel with allyesconfig fails because the i.mx early
resume code located in the .data section is unable to fixup the bl
relocation as the branch target gets too far away.

The idea of having code in the .data section allows for easy access to
nearby data using relative addressing while the MMU is off. However it
is probably best to move the code back to the .text section where it
belongs and fixup the data access instead.  This solves the bl reloc
issue (at least until this becomes a general problem) and simplifies
the code as well.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-04 09:20:09 +08:00