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3244 commits

Author SHA1 Message Date
Linus Torvalds
5e512d0785 arm-soc: soc-specific updates
This is stuff that does not fit well into another category and in
 particular is not related to a particular board. The largest part
 in here is extending the am33xx support in the omap platform.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm soc-specific updates from Arnd Bergmann:
 "This is stuff that does not fit well into another category and in
  particular is not related to a particular board.  The largest part in
  here is extending the am33xx support in the omap platform."

Fix up trivial conflicts in arch/arm/mach-{imx/mach-mx35_3ds.c, tegra/Makefile}

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (74 commits)
  ARM: LPC32xx: Add PWM support
  ARM: LPC32xx: Add PWM clock
  ARM: LPC32xx: Set system serial based on cpu unique id
  ARM: vexpress: Config option for early printk console
  ARM: vexpress: Add Device Tree for V2P-CA15_CA7 core tile
  ARM: vexpress: Convert V2P-CA15 Device Tree to 64 bit addresses
  ARM: vexpress: Add fixed regulator for SMSC
  ARM: vexpress: Add missing SP804 interrupt in motherboard's DTS files
  ARM: vexpress: Initial common clock support
  ARM: SAMSUNG: Introduce Kconfig variable for Samsung custom clk API
  ARM: EXYNOS: Add missing static storage class specifier in pmu.c file
  ARM: EXYNOS: Make combiner_init function static
  ARM: EXYNOS: Update HSOTG PHY clock setting for EXYNOS4X12
  ARM: versatile: Make plat-versatile clock optional
  ARM: vexpress: Check master site in daughterboard's sysctl operations
  ARM: vexpress: remove automatic errata workaround selection
  ARM: LPC32xx: Adjust to pl08x DMA interface changes
  ARM: EXYNOS: Clear SYS_WDTRESET bit to use watchdog reset
  ARM: imx: fix mx51 ehci setup errors
  ARM: imx: make ehci power/oc polarities configurable
  ...
2012-07-23 16:08:40 -07:00
Linus Torvalds
451ce7f9cf arm-soc: general cleanups
These are all boring changes, moving stuff around or renaming things
 mostly, and also getting rid of stuff that is duplicate or should
 not be there to start with. Platform-wise this is all over the place,
 mainly omap, samsung, at91, imx and tegra.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull general arm-soc cleanups from Arnd Bergmann:
 "These are all boring changes, moving stuff around or renaming things
  mostly, and also getting rid of stuff that is duplicate or should not
  be there to start with.  Platform-wise this is all over the place,
  mainly omap, samsung, at91, imx and tegra."

Resolve trivial conflict in arch/arm/mach-omap2/clockdomains3xxx_data.c

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits)
  ARM: clps711x: Remove the setting of the time
  ARM: clps711x: Removed superfluous transform virt_to_bus and related functions
  ARM: clps711x/p720t: Replace __initcall by .init_early call
  ARM: S3C24XX: Remove unused GPIO definitions for Openmoko GTA02 board
  ARM: S3C24XX: Remove unused GPIO definitions for port J
  ARM: S3C24XX: Remove unused GPA, GPE, GPH bank GPIO aliases
  ARM: S3C24XX: Convert the touchscreen setup code to common GPIO API
  ARM: S3C24XX: Convert the PM code to gpiolib API
  ARM: S3C24XX: Convert QT2410 board file to the gpiolib API
  ARM: S3C24XX: Convert SMDK board file to the gpiolib API
  ARM: S3C24XX: Free the backlight gpio requested in Mini2440 board code
  ARM: imx: remove unused pdata from device macros
  ARM: imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX_SSI from MACH_MX25_3DS
  ARM: at91: fix new build errors
  ARM: at91: add AIC5 support
  ARM: at91: remove mach/irqs.h
  ARM: at91: sparse irq support
  ARM: at91: at91 based machines specify their own irq handler at run time
  ARM: at91: remove static irq priorities for sam9x5
  ARM: at91: add of irq priorities support
  ...
2012-07-23 16:04:15 -07:00
Linus Torvalds
b85c14fb83 arm-soc: non-critical bug fixes
These were submitted as bug fixes before v3.5 but not considered
 important enough to be included in it.
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Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull non-critical arm-soc bug fixes from Arnd Bergmann:
 "These were submitted as bug fixes before v3.5 but not considered
  important enough to be included in it."

* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  ARM:vt8500: Convert to use .restart and remove arch_reset()
  ARM: davinci: da8xx: fix interrupt handling
  ARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM
  ARM: mxs/tx28: fix odd include
  ARM: OMAP: remove unused cpu detection macros
  ARM: OMAP: fix typos related to OMAP330
  ARM: OMAP7XX:  Remove omap730.h and omap850.h
  ARM: OMAP2+: fix naming collision of variable nr_irqs
  ARM: OMAP: omap2plus_defconfig: Enable EXT4 support
  ARM: OMAP depends on MMU
  arm: omap3: am35x: Set proper powerdomain states
  ARM: OMAP AM35x: clockdomain data: Fix clockdomain dependencies
  ARM: OMAP AM35x: EMAC/MDIO integration: Add Davinci EMAC/MDIO hwmod support
  ARM: OMAP: AM35xx: fix UART4 softreset
  ARM: OMAP AM35xx: clock and hwmod data: fix UART4 data
  ARM: OMAP AM35xx: clock and hwmod data: fix AM35xx HSOTGUSB hwmod
  ARM: OMAP: Fix dts files w/ status property: "disable" -> "disabled"
  ARM: OMAP: beagle: Set USB Host Port 1 to OMAP_USBHS_PORT_MODE_UNUSED
  ARM: OMAP2: twl-common: Fix compiler warning
  ARM: OMAP: fix the ads7846 init code
  ...
2012-07-23 16:01:01 -07:00
Arnd Bergmann
45bcc91aca Merge branch 'clps711x/cleanup' into next/cleanup
Patches from Alexander Shiyan <shc_work@mail.ru>:

* clps711x/cleanup:
  ARM: clps711x: Remove the setting of the time
  ARM: clps711x: Removed superfluous transform virt_to_bus and related functions
  ARM: clps711x/p720t: Replace __initcall by .init_early call

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-17 22:25:03 +02:00
Arnd Bergmann
0dc1951043 Linux 3.5-rc6
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Merge tag 'v3.5-rc6' into next/soc

Linux 3.5-rc6

Dependency for imx/soc changes
2012-07-11 12:50:20 +02:00
Tony Lindgren
5f37609759 Merge branch 'for_3.5/fixes/pm-3' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into fixes 2012-07-06 01:58:23 -07:00
Paul Walmsley
006c7f1844 ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer
Kevin discovered that commit c8d82ff68f
("ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod
database") broke CORE idle on OMAP3.  This prevents device low power
states.

The root cause is that the 32K sync timer IP block does not support
smart-idle mode[1], and so the hwmod code keeps the IP block in
no-idle mode while it is active.  This in turn prevents the WKUP
clockdomain from transitioning to idle.  There is a hardcoded sleep
dependency that prevents the CORE_L3 and CORE_CM clockdomains from
transitioning to idle when the WKUP clockdomain is active[2], so the
chip cannot enter any device low power states.

It turns out that there is no need to take the 32k sync timer out of
idle.  The IP block itself probably does not have any native idle
handling at all, due to its simplicity.  Furthermore, the PRCM will
never request target idle for this IP block while the kernel is
running, due to the sleep dependency that prevents the WKUP
clockdomain from idling while the CORE_L3 clockdomain is active.  So
we can safely leave the 32k sync timer in target-force-idle mode, even
while we continue to access it.

This workaround is implemented by defining a new clockdomain flag,
CLKDM_ACTIVE_WITH_MPU, that indicates that the clockdomain is
guaranteed to be active whenever the MPU is inactive.  If an IP
block's main functional clock exists inside this clockdomain, and the
IP block does not support smart-idle modes, then the hwmod code will
place the IP block into target force-idle mode even when enabled.  The
WKUP clockdomains on OMAP3/4 are marked with this flag.  (On OMAP2xxx,
no OCP header existed on the 32k sync timer.)   Other clockdomains also
should be marked with this flag, but those changes are deferred until
a later merge window, to create a minimal fix.

Another theoretically clean fix for this problem would be to implement
PM runtime-based control for 32k sync timer accesses.  These PM
runtime calls would need to located in a custom clocksource, since the
32k sync timer is currently used as an MMIO clocksource.  But in
practice, there would be little benefit to doing so; and there would
be some cost, due to the addition of unnecessary lines of code and the
additional CPU overhead of the PM runtime and hwmod code - unnecessary
in this case.

Another possible fix would have been to modify the pm34xx.c code to
force the IP block idle before entering WFI.  But this would not have
been an acceptable approach: we are trying to remove this type of
centralized IP block idle control from the PM code.

This patch is a collaboration between Kevin Hilman <khilman@ti.com>
and Paul Walmsley <paul@pwsan.com>.

Thanks to Vaibhav Hiremath <hvaibhav@ti.com> for providing comments on
an earlier version of this patch.  Thanks to Tero Kristo
<t-kristo@ti.com> for identifying a bug in an earlier version of this
patch.  Thanks to Benoît Cousson <b-cousson@ti.com> for identifying
some bugs in several versions of this patch and for implementation
comments.

References:

1. Table 16-96 "REG_32KSYNCNT_SYSCONFIG" of the OMAP34xx TRM Rev. ZU
   (SWPU223U), available from:
   http://www.ti.com/pdfs/wtbu/OMAP34x_ES3.1.x_PUBLIC_TRM_vzU.zip

2. Table 4-72 "Sleep Dependencies" of the OMAP34xx TRM Rev. ZU
   (SWPU223U)

3. ibid.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-07-05 17:25:38 -07:00
Tony Lindgren
fa2976a811 A few more OMAP fixes for 3.5-rc. These fix some bugs with power
management and McBSP.
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Merge tag 'omap-fixes-b-for-3.5rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

A few more OMAP fixes for 3.5-rc.  These fix some bugs with power
management and McBSP.
2012-07-05 01:12:08 -07:00
Benoit Cousson
d7a0b5133f ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
The commit 503d0ea24d
  ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks

added a wrong "prcm_clk" alias for PRCM clock whereas the McBSP
driver and previous OMAPs are using "prcm_fck".

It thus lead to the following warning.

[   47.409729] omap-mcbsp: clks: could not clk_get() prcm_fck

Fix that by changing the opt_clk role to prcm_fck.

Reported-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Sebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04 06:55:29 -06:00
Paul Walmsley
b0a70cc80e ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
The OMAP4 usb_host_fs (OHCI) and AESS IP blocks require some special
programming for them to enter idle.  Without this programming, they
will prevent the rest of the chip from entering full chip idle.

To implement the idle programming cleanly, this will take some
coordination between maintainers.  This is likely to take some time,
so it is probably best to leave this for 3.6 or 3.7.  So, in the
meantime, prevent these IP blocks from being registered.

Later, once the appropriate support is available, this patch can be
reverted.

This second version comments out the IP block data since Benoît didn't
like removing it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2012-07-04 06:55:29 -06:00
Arnd Bergmann
2028103f90 Here are changes to add support for am33xx processors for the
clock, power, and voltagedomains.
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Merge tag 'omap-devel-am33xx-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

From Tony Lindgren <tony@atomide.com>:

Here are changes to add support for am33xx processors for the
clock, power, and voltagedomains.

* tag 'omap-devel-am33xx-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP AM33xx: clockdomains: Add clockdomain data and respective operations
  ARM: OMAP AM33xx: powerdomains: add AM335x support
  ARM: OMAP AM33xx: CM: Introduce AM33xx CM APIs and register level details
  ARM: OMAP AM33xx: PRM: add PRM support
  ARM: OMAP AM33xx: voltagedomain: Add voltage domain data
  ARM: OMAP2+: control: Add AM33XX control reg & sec clkctrl offset
  ARM: OMAP2+: am33xx: Add AM335XEVM machine support
  ARM: OMAP2+: am33xx: Add low level debugging support

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-03 22:03:28 +02:00
Arnd Bergmann
1fe4061864 Here is some more omap clean-up. The biggest changes are
hwmod, clock, and System Control Module cleanup, and the removal
 of the last instance of omap_read/write usage for omap2+ with
 the removal of unused USB OHCI Full Speed driver support. The
 removed OHCI is only currently used for omap1 as the actively
 used omap2+ boards have either MUSB or another instance of
 OHCI+EHCI that's more usable.
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Merge tag 'omap-cleanup-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren <tony@atomide.com>

Here is some more omap clean-up. The biggest changes are
hwmod, clock, and System Control Module cleanup, and the removal
of the last instance of omap_read/write usage for omap2+ with
the removal of unused USB OHCI Full Speed driver support. The
removed OHCI is only currently used for omap1 as the actively
used omap2+ boards have either MUSB or another instance of
OHCI+EHCI that's more usable.

* tag 'omap-cleanup-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: hwmod: remove prm_clkdm, cm_clkdm; allow hwmods to have no clockdomain
  ARM: OMAP3: Move McBSP fck clock alias to hwmod data
  ARM: OMAP2: Move McBSP fck clock alias to hwmod data for OMAP2430
  ARM: OMAP2: Move McBSP fck clock alias to hwmod data for OMAP2420
  ARM: OMAP: dsp: interface to control module functions
  ARM: OMAP2+: control: new APIs to configure boot address and mode
  ARM: OMAP2+: CLEANUP: Remove ARCH_OMAPx ifdef from struct dpll_data
  ARM: OMAP2+: hwmod: use init-time function pointer for _init_clkdm
  ARM: OMAP2+: hwmod: use init-time function pointer for hardreset
  ARM: OMAP2+: hwmod: use init-time function pointer for wait_target_ready
  ARM: OMAP4: hwmod: drop extra cpu_is check from _wait_target_disable()
  ARM: OMAP2+: hwmod: use init-time function ptrs for enable/disable module
  ARM: OMAP4: hwmod: rename _enable_module to _omap4_enable_module()
  ARM: OMAP: Make FS USB omap1 only
  ARM: OMAP2: Remove legacy USB FS support
  ARM: OMAP3: There is no FS USB controller on omap3
  ARM: OMAP: dma: Clear status registers on enable/disable irq

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-03 21:54:55 +02:00
Arnd Bergmann
a06347d0ca This branch contains fixes that were too intrusive or not
critical enough for the 3.5 -rc cycle. The biggest changes are
 fixes for the am35xx clock and hwmod data, and the removal of dead
 code for the 730 and 850 headers.
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Merge tag 'omap-fixes-non-critical-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

From Tony Lindgren <tony@atomide.com>:

This branch contains fixes that were too intrusive or not
critical enough for the 3.5 -rc cycle. The biggest changes are
fixes for the am35xx clock and hwmod data, and the removal of dead
code for the 730 and 850 headers.

* tag 'omap-fixes-non-critical-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (25 commits)
  ARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM
  ARM: OMAP: remove unused cpu detection macros
  ARM: OMAP: fix typos related to OMAP330
  ARM: OMAP7XX:  Remove omap730.h and omap850.h
  ARM: OMAP2+: fix naming collision of variable nr_irqs
  ARM: OMAP: omap2plus_defconfig: Enable EXT4 support
  ARM: OMAP depends on MMU
  arm: omap3: am35x: Set proper powerdomain states
  ARM: OMAP AM35x: clockdomain data: Fix clockdomain dependencies
  ARM: OMAP AM35x: EMAC/MDIO integration: Add Davinci EMAC/MDIO hwmod support
  ARM: OMAP: AM35xx: fix UART4 softreset
  ARM: OMAP AM35xx: clock and hwmod data: fix UART4 data
  ARM: OMAP AM35xx: clock and hwmod data: fix AM35xx HSOTGUSB hwmod
  ARM: OMAP: Fix dts files w/ status property: "disable" -> "disabled"
  ARM: OMAP: beagle: Set USB Host Port 1 to OMAP_USBHS_PORT_MODE_UNUSED
  ARM: OMAP2: twl-common: Fix compiler warning
  ARM: OMAP: fix the ads7846 init code
  mfd: twl: remove pdata->irq_base/_end, no more users
  ARM: OMAP2+: TWL: remove usage of pdata->irq_base/_end
  ARM: OMAP2+: OPP: Fix to ensure check of right oppdef after bad one
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-03 21:52:52 +02:00
Kevin Hilman
5941b8142e ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
The SYS_NIRQ1 pin is the interupt line for the PMIC part of the TWL6030
and interrupts from the PMIC are needed as wakeup sources.

Ensure this pin is mux'd as input and has wakeup enabled so PMIC
interupts (e.g. RTC) can be used as wakeup sources.

Tested on OMAP4430/Panda.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-02 04:59:04 -07:00
Kevin Hilman
95669d7881 ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
In order for suspend/resume dependencies to work correctly, I2C has to
be initialized (more specifically, registered with the driver core)
before MMC.  Without this, the MMC driver fails to adjust the VMMC
regulator (using i2c writes) during the suspend path.

Problem found testing suspend/resume on 3730/OveroSTORM platform.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-02 04:58:47 -07:00
Tony Lindgren
f6f1f12f6d Some OMAP AM35xx fixes.
The powerdomain and clockdomain data for the AM35xx are finally fixed.
 The AM35xx EMAC/MDIO Ethernet controller integration code has been
 converted to use the OMAP device and hwmod framework.  Also the UART4
 and HSOTGUSB warnings have been fixed.
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Merge tag 'omap-devel-d-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes-non-critical

Some OMAP AM35xx fixes.

The powerdomain and clockdomain data for the AM35xx are finally fixed.
The AM35xx EMAC/MDIO Ethernet controller integration code has been
converted to use the OMAP device and hwmod framework.  Also the UART4
and HSOTGUSB warnings have been fixed.
2012-06-29 06:07:08 -07:00
Kevin Hilman
e0246e8eca ARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM
commit 164e0cbf60 (ARM: OMAP3/4: consolidate cpuidle Makefile) added
an OMAP-specific dependency from CPU_IDLE to CONFIG_PM.  This causes
some randconfig warnings when CONFIG_PM has unmet dependencies:

warning: (ARCH_OMAP3 && ARCH_OMAP4) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)
warning: (ARCH_OMAP3 && ARCH_OMAP4) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)
warning: (ARCH_OMAP3 && ARCH_OMAP4) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)

Fix this by making the dependency on CONFIG_PM_RUNTIME (which in turn
will enable CONFIG_PM.)

Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-29 05:48:26 -07:00
Tony Lindgren
472fd54015 Merge branch 'cleanup-hwmod' into cleanup
Conflicts:
	arch/arm/mach-omap2/dsp.c
2012-06-28 05:47:01 -07:00
Tony Lindgren
5f6129675b Merge branches 'cleanup-udc' and 'cleanup-dma' into cleanup 2012-06-28 05:46:41 -07:00
Tony Lindgren
0810048713 Merge branch 'for_3.6/cleanup/twl-irq' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into fixes-non-critical 2012-06-28 00:09:26 -07:00
Tony Lindgren
4348be7a58 Merge branch 'for_3.6/cleanup/pm' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into fixes-non-critical 2012-06-28 00:08:58 -07:00
Venkatraman S
b56f2cb71a ARM: OMAP2+: fix naming collision of variable nr_irqs
Using nr_irqs as local variable name triggers the sparse warning..
./arch/arm/mach-omap2/irq.c:265:6: warning: symbol 'nr_irqs' shadows an earlier one
./linux/include/linux/irqnr.h:26:12: originally declared here

Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-28 00:08:04 -07:00
Tony Lindgren
53e6a100f7 Merge branch 'fixes-omap4-dsp' into fixes-non-critical 2012-06-28 00:07:30 -07:00
Paul Walmsley
a77e1c4d09 Merge branches 'am35xx_hwmod_data_fixes_a_3.6', 'am35xx_emac_mdio_devel_3.6' and 'am35xx_prcm_data_devel_3.6' into am35xx_devel_3.6 2012-06-28 00:13:19 -06:00
Mark A. Greer
ff7ad7e492 arm: omap3: am35x: Set proper powerdomain states
The am35x family of SoCs only support the PWRSTS_ON
state so create a new set of powerdomain structures
that ensure that only the ON state is entered.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
2012-06-28 00:12:35 -06:00
Mark A. Greer
16e5e2c471 ARM: OMAP AM35x: clockdomain data: Fix clockdomain dependencies
The am35x family of SoCs do not have an IVA so
a parallel set of clockdomain dependencies are
required that are simililar to OMAP3 but without
any IVA dependencies.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-06-28 00:07:32 -06:00
Mark A. Greer
31ba88083f ARM: OMAP AM35x: EMAC/MDIO integration: Add Davinci EMAC/MDIO hwmod support
Add hwmod support for the EMAC (and MDIO)
ethernet controller that's on the am35x
family of SoC's.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
[paul@pwsan.com: updated subject line; updated to apply on v3.5-rc4;
 added comments to hwmod data regarding IPSS]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-06-27 14:59:57 -06:00
Paul Walmsley
82ee620dc6 ARM: OMAP: AM35xx: fix UART4 softreset
During kernel init, the AM3505/AM3517 UART4 cannot complete its softreset:

omap_hwmod: uart4: softreset failed (waited 10000 usec)

This also results in another warning later in the boot process:

omap_hwmod: uart4: enabled state can only be entered from initialized, idle, or disabled state

From empirical observation, the AM35xx UART4 IP block requires either
uart1_fck or uart2_fck to be enabled while UART4 resets.  Otherwise
the reset will never complete.  So this patch adds uart1_fck as an
optional clock for UART4 and adds the appropriate hwmod flag to cause
uart1_fck to be enabled during the reset process.  (The choice of
uart1_fck over uart2_fck was arbitrary.)

Unfortunately this observation raises many questions.  Is it necessary
for uart1_fck or uart2_fck to be controlled with uart4_fck for the
UART4 to work correctly?  What exactly do the AM35xx UART4 clock
tree and the related PRCM idle management FSMs look like?  If anyone
has the ability to answer these questions through empirical functional
testing, or hardware information from the AM35xx designers, it would
be greatly appreciated.

Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Kyle Manna <kyle.manna@fuel7.com>
Cc: Mark A. Greer <mgreer@animalcreek.com>
Cc: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Mark A. Greer <mgreer@animalcreek.com>
2012-06-27 14:53:46 -06:00
Paul Walmsley
bf76523727 ARM: OMAP AM35xx: clock and hwmod data: fix UART4 data
Add missing terminators to the arrays of IRQ, DMA, and address space
structure records in the AM35xx UART4 hwmod data.  Without these
terminators, the following warnings appear on boot:

omap_uart.3: failed to claim resource 58
omap_device: omap_uart: build failed (-16)
WARNING: at /home/paul/linux/arch/arm/mach-omap2/serial.c:375 omap_serial_init_port+0x198/0x284()
Could not build omap_device for omap_uart: uart4.

Also, AM35xx uart4_fck has an incorrect parent clock pointer.  Fix it
and clean up a whitespace issue.

Fix some incorrectly-named macros related to AM35xx UART4.

Cc: Kyle Manna <kyle.manna@fuel7.com>
Cc: Mark A. Greer <mgreer@animalcreek.com>
Cc: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Mark A. Greer <mgreer@animalcreek.com>
2012-06-27 14:53:46 -06:00
Paul Walmsley
89ea25835a ARM: OMAP AM35xx: clock and hwmod data: fix AM35xx HSOTGUSB hwmod
Partially fix the hwmod data for the AM35xx USB OTG hwmod.  This
should resolve the following boot warning on AM35xx platforms:

omap_hwmod: am35x_otg_hs: cannot be enabled for reset (3)

While here, also fix the clkdev records, to avoid warnings about
duplicate clock aliases.

The hwmod is also connected to the wrong interconnect.  It should be
connected to the IPSS, not the L4 CORE.  But that is left for a future
fix, since it probably has a dependency on some hwmod core changes.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Hema HK <hemahk@ti.com>
Cc: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Mark A. Greer <mgreer@animalcreek.com>
2012-06-27 14:53:46 -06:00
Jon Hunter
e90b833ee1 ARM: OMAP4470: Fix OMAP4470 boot failure
OMAP4470 currently fails to boot, printing various messages such as ...

omap_hwmod: mpu: cannot clk_get main_clk dpll_mpu_m2_ck
omap_hwmod: mpu: cannot _init_clocks
------------[ cut here ]------------
WARNING: at arch/arm/mach-omap2/omap_hwmod.c:2062 _init+0x2a0/0x2e4()
omap_hwmod: mpu: couldn't init clocks
Modules linked in:
[<c001c7fc>] (unwind_backtrace+0x0/0xf4) from [<c0043c64>] (warn_slowpath_common+0x4c/0x64)
[<c0043c64>] (warn_slowpath_common+0x4c/0x64) from [<c0043d10>] (warn_slowpath_fmt+0x30/0x40)
[<c0043d10>] (warn_slowpath_fmt+0x30/0x40) from [<c0674208>] (_init+0x2a0/0x2e4)
[<c0674208>] (_init+0x2a0/0x2e4) from [<c067428c>] (omap_hwmod_setup_one+0x40/0x60)
[<c067428c>] (omap_hwmod_setup_one+0x40/0x60) from [<c0674280>] (omap_hwmod_setup_one+0x34/0x60)
[<c0674280>] (omap_hwmod_setup_one+0x34/0x60) from [<c06726f4>] (omap_dm_timer_init_one+0x30/0x250)
[<c06726f4>] (omap_dm_timer_init_one+0x30/0x250) from [<c0672930>] (omap2_gp_clockevent_init+0x1c/0x108)
[<c0672930>] (omap2_gp_clockevent_init+0x1c/0x108) from [<c0672c60>] (omap4_timer_init+0x10/0x5c)
[<c0672c60>] (omap4_timer_init+0x10/0x5c) from [<c066c418>] (time_init+0x20/0x30)
[<c066c418>] (time_init+0x20/0x30) from [<c0668814>] (start_kernel+0x1b0/0x304)
[<c0668814>] (start_kernel+0x1b0/0x304) from [<80008044>] (0x80008044)
---[ end trace 1b75b31a2719ed1c ]---

The problem is that currently none of the clocks are being registered for
OMAP4470 devices and so on boot-up no clocks can be found and the kernel panics.

This fix allows the kernel to boot without failure using a simple RAMDISK file
system on OMAP4470 blaze board.

Per feedback from Paul and Benoit the 4470 clock data is incomplete for new
modules such as the 2D graphics block that has been added to the 4470.
Therefore add a warning to indicate that the clock data is incomplete.

Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-27 08:09:59 -07:00
Kevin Hilman
bb44c30e53 ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
commit 8259573b (ARM: OMAP2+: nand: Make board_onenand_init() visible
to board code) broke the build for configs with OneNAND disabled.  By
removing the static in the header file, it created a duplicate definition
in the .c and the .h files, resuling in a build error:

/work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.c:102:111: error: redefinition of 'board_onenand_init'
/work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.h:56:51: note: previous definition of 'board_onenand_init' was here
make[2]: *** [arch/arm/mach-omap2/board-flash.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [arch/arm/mach-omap2] Error 2
make: *** [sub-make] Error 2

Fix this by removing the duplicate dummy entry from the C file.

Cc: Enric Balletbò i Serra <eballetbo@gmail.com>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-26 03:29:57 -07:00
Olof Johansson
a34a3b7264 Some uncontroversial OMAP clock, hwmod, and compiler warning fixes for 3.5-rc
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Merge tag 'omap-fixes-a-for-3.5rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

From Paul Walmsley (as per Tony Lindgren's request):
 "Some uncontroversial OMAP clock, hwmod, and compiler warning fixes for 3.5-rc"

* tag 'omap-fixes-a-for-3.5rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: OMAP4: hwmod data: Force HDMI in no-idle while enabled
  ARM: OMAP2+: mux: fix sparse warning
  ARM: OMAP2+: CM: increase the module disable timeout
  ARM: OMAP4: clock data: add clockdomains for clocks used as main clocks
  ARM: OMAP4: hwmod data: fix 32k sync timer idle modes
  ARM: OMAP4+: hwmod: fix issue causing IPs not going back to Smart-Standby
  ARM: OMAP: PM: Lock clocks list while generating summary
2012-06-23 16:16:29 -07:00
Olof Johansson
e23d7096f9 Here are a few fixes with the biggest one being fix for Beagle DVI
reset. All of them are regression fixes, except for the missing omap2
 interrupt controller binding that somehow got missed earlier.
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Merge tag 'omap-fixes-for-v3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:
"Here are a few fixes with the biggest one being fix for Beagle DVI
 reset. All of them are regression fixes, except for the missing omap2
 interrupt controller binding that somehow got missed earlier."

* tag 'omap-fixes-for-v3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: Fix Beagleboard DVI reset gpio
  arm/dts: OMAP2: Fix interrupt controller binding
  ARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0
  ARM: OMAP2+: Fix MUSB ifdefs for platform init code
2012-06-23 16:11:50 -07:00
Ricardo Neri
dc57aef503 ARM: OMAP4: hwmod data: Force HDMI in no-idle while enabled
As per the OMAP4 documentation, audio over HDMI must be transmitted in
no-idle mode. This patch adds the HWMOD_SWSUP_SIDLE so that omap_hwmod uses
no-idle/force-idle settings instead of smart-idle mode.

This is required as the DSS interface clock is used as functional clock
for the HDMI wrapper audio FIFO. If no-idle mode is not used, audio could
be choppy, have bad quality or not be audible at all.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
[b-cousson@ti.com: Update the subject and align the .flags
location with the script template]
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-06-21 18:08:47 -06:00
Paul Walmsley
65e25976b7 ARM: OMAP2+: mux: fix sparse warning
Commit bbd707acee ("ARM: omap2: use
machine specific hook for late init") resulted in the addition of this
sparse warning:

arch/arm/mach-omap2/mux.c:791:12: warning: symbol 'omap_mux_late_init' was not declared. Should it be static?

Fix by including the header file containing the prototype.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Tony Lindgren <tony@atomide.com>
2012-06-21 18:08:47 -06:00
Paul Walmsley
b8f15b7e1d ARM: OMAP2+: CM: increase the module disable timeout
Increase the timeout for disabling an IP block to five milliseconds.
This is to handle the usb_host_fs idle latency, which takes almost
four milliseconds after a host controller reset.

This is the second of two patches needed to resolve the following
boot warning:

omap_hwmod: usb_host_fs: _wait_target_disable failed

Thanks to Sergei Shtylyov <sshtylyov@mvista.com> for finding
an unrelated hunk in a previous version of this patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Tero Kristo <t-kristo@ti.com>
2012-06-21 18:08:47 -06:00
Paul Walmsley
9a47d32d5c ARM: OMAP4: clock data: add clockdomains for clocks used as main clocks
Until the OMAP4 code is converted to disable the use of the clock
framework-based clockdomain enable/disable sequence, any clock used as
a hwmod main_clk must have a clockdomain associated with it.  This
patch populates some clock structure clockdomain names to resolve the
following warnings during kernel init:

omap_hwmod: dpll_mpu_m2_ck: missing clockdomain for dpll_mpu_m2_ck.
omap_hwmod: trace_clk_div_ck: missing clockdomain for trace_clk_div_ck.
omap_hwmod: l3_div_ck: missing clockdomain for l3_div_ck.
omap_hwmod: ddrphy_ck: missing clockdomain for ddrphy_ck.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2012-06-21 18:08:47 -06:00
Paul Walmsley
252a4c5443 ARM: OMAP4: hwmod data: fix 32k sync timer idle modes
The 32k sync timer IP block target idle modes in the hwmod data are
incorrect.  The IP block does not support any smart-idle modes.
Update the data to reflect the correct modes.

This problem was initially identified and a diff fragment posted to
the lists by Benoît Cousson <b-cousson@ti.com>.  A patch description
bug in the first version was also identified by Benoît.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
2012-06-21 18:08:47 -06:00
Djamil Elaidi
561038f0a8 ARM: OMAP4+: hwmod: fix issue causing IPs not going back to Smart-Standby
If an IP is configured in Smart-Standby-Wakeup, when disabling wakeup feature the
IP will not go back to Smart-Standby, but will remain in Smart-Standby-Wakeup.

Signed-off-by: Djamil Elaidi <d-elaidi@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-06-21 18:08:46 -06:00
Brian Austin
f6f6c9a5be ARM: OMAP: beagle: Set USB Host Port 1 to OMAP_USBHS_PORT_MODE_UNUSED
The beagleboard USB Host Port that is used is Port 2. The platform driver
sets MODE_PHY for port 1 causing pin muxing to override the pins on the
expansion connector P17 when using board_mux[]. Since USBHS Port 1 is not
connected remove the case for muxing the USB Port1 pins by default.

Tested with BeagleBoard xM revC and checked the userguides for Beagle xM
and revC to be sure USB Port2 is what is used.

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Acked-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-21 01:36:02 -07:00
Peter Ujfalusi
da0085ff9b ARM: OMAP2: twl-common: Fix compiler warning
If the kernel is built only for OMAP2 the following warning will show up:

arch/arm/mach-omap2/twl-common.c:52: warning: ‘twl_set_voltage’ defined but not used
arch/arm/mach-omap2/twl-common.c:58: warning: ‘twl_get_voltage’ defined but not used

The twl_set/get_voltage callbacks only used when OMAP3/4 is selected.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-21 01:36:02 -07:00
Igor Grinberg
97ee9f01d6 ARM: OMAP: fix the ads7846 init code
In case a board provides the gpio_pendown and not board_pdata,
the GPIO debounce is not taken care of.
Fix this by taking care of GPIO debounce in any case.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-21 01:36:02 -07:00
Paul Walmsley
07b3a13957 Merge branches 'clock_cleanup_misc_3.6', 'control_clean_dspbridge_writes_cleanup_3.6', 'hwmod_soc_conditional_cleanup_3.6', 'mcbsp_clock_aliases_cleanup_3.6' and 'remove_clkdm_requirement_from_hwmod_3.6' into omap_cleanup_a_3.6
Conflicts:
	arch/arm/mach-omap2/omap_hwmod.c
2012-06-20 20:11:36 -06:00
Russ Dill
aef2b89662 ARM: OMAP: Fix Beagleboard DVI reset gpio
Commit e813a55eb9 ("OMAP: board-files:
remove custom PD GPIO handling for DVI output") moved TFP410 chip's
powerdown-gpio handling from the board files to the tfp410 driver. One
gpio_request_one(powerdown-gpio, ...) was mistakenly left unremoved in
the Beagle board file. This causes the tfp410 driver to fail to request
the gpio on Beagle, causing the driver to fail and thus the DVI output
doesn't work.

This patch removes several boot errors from board-omap3beagle.c:

 - gpio_request: gpio--22 (DVI reset) status -22
 - Unable to get DVI reset GPIO

There is a combination of leftover code and revision confusion.
Additionally, xM support is currently a hack.

For original Beagleboard this removes the double initialization of GPIO
170, properly configures it as an output, and wraps the initialization
in an if block so that xM does not attempt to request it.

For Beagleboard xM it removes reference to GPIO 129 which was part
of rev A1 and A2 designs, but never functioned. It then properly assigns
beagle_dvi_device.reset_gpio in beagle_twl_gpio_setup and removes the
hack of initializing it high. Additionally, it uses
gpio_set_value_cansleep since this GPIO is connected through i2c.

Unfortunately, there is no way to tell the difference between xM A2 and
A3. However, GPIO 129 does not function on rev A1 and A2, and the TWL
GPIO used on A3 and beyond is not used on rev A1 and A2, there are no
problems created by this fix.

Tested on Beagleboard-xM Rev C1 and Beagleboard Rev B4.

Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-20 07:18:21 -07:00
Tony Lindgren
3d09b33fec ARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0
Here's one more gpio_to_irq conversion that we missed
earlier. Tested with n800 in gadget mode using USB_ETH.

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-20 07:18:15 -07:00
Tony Lindgren
310018d52e ARM: OMAP2+: Fix MUSB ifdefs for platform init code
Commit 62285963 (usb: musb: drop a gigantic amount of ifdeferry)
got rid of a bunch of ifdefs in the MUSB code. Looks like the
platform init code is still using these dropped defines though,
which in many cases results the board defaulting always to host
mode.

Currently the situation is that USB_MUSB_HDRC is the main
Kconfig option with additional USB_GADGET_MUSB_HDRC so only
these two should be used to select between host and OTG mode.

Fix the situation for omaps. The following users should fix the
platform init code in a similar way:

Dropped Kconfig option          Current users

USB_MUSB_OTG                    blackfin, davinci, not in Kconfigs
USB_MUSB_PERIPHERAL             davinci, not in Kconfigs
USB_MUSB_HOST                   davinci, not in Kconfigs
USB_MUSB_HDRC_HCD               blackfin, not in Kconfigs
USB_MUSB_OTG                    blackfin, not in Kconfigs

Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: linux-usb@vger.kernel.org
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-20 07:18:15 -07:00
Kevin Hilman
a844a197f1 ARM: OMAP2+: TWL: remove usage of pdata->irq_base/_end
The TWL driver has been converted to use SPARSE_IRQ and no longer
needs to be passed IRQ base/end.  Since driver no longer uses these
fields, so remove them from the reamaining users.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-06-19 15:24:34 -07:00
Nishanth Menon
b110547e58 ARM: OMAP2+: OPP: Fix to ensure check of right oppdef after bad one
Commit 9fa2df6b90
(ARM: OMAP2+: OPP: allow OPP enumeration to continue if device is not present)
makes the logic:
for (i = 0; i < opp_def_size; i++) {
	<snip>
	if (!oh || !oh->od) {
		<snip>
		continue;
	}
<snip>
opp_def++;
}

In short, the moment we hit a "Bad OPP", we end up looping the list
comparing against the bad opp definition pointer for the rest of the
iteration count. Instead, increment opp_def in the for loop itself
and allow continue to be used in code without much thought so that
we check the next set of OPP definition pointers :)

Cc: Steve Sakoman <steve@sakoman.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-06-19 15:23:29 -07:00
Daniel Lezcano
164e0cbf60 ARM: OMAP3/4: consolidate cpuidle Makefile
The current Makefile compiles the cpuidle34xx.c and cpuidle44xx.c files
even if the cpuidle option is not set in the kernel.

This patch fixes this by creating a section in the Makefile where these
files are compiled only if the CONFIG_CPU_IDLE option is set.

This modification breaks an implicit dependency between CPU_IDLE and PM as
they belong to the same block in the Makefile. This is fixed in the Kconfig
by selecting explicitely PM is CPU_IDLE is set.

The linux coding style recommend to use no-op functions in the headers
when the subsystem is disabled instead of adding big section in C files.

This patch fix this also.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-06-19 15:22:37 -07:00