When an interrupt has become active on the INTC it will stay active
until it is acked, even if masked or de-asserted. The
INTC_PENDING_IRQn registers are however updated and since these are
used by omap_intc_handle_irq to determine which interrupt to handle,
it will never see the active interrupt. This will result in a storm of
useless interrupts that is only stopped when another higher priority
interrupt is asserted.
Fix by sending the INTC an acknowledge if we find no interrupts to
handle.
Cc: stable@vger.kernel.org
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
am33xx has a INTC_PENDING_IRQ3 register that is not checked for pending
interrupts. This patch adds AM33XX to the ifdef of SOCs that have to
check this register.
Cc: stable@vger.kernel.org
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
These changes fix some of the more meaningful warnings that smatch
returns for the OMAP subarch code, and unwraps strings that are
wrapped at the 80-column boundary, to conform with the current
practice.
Basic build, boot, and PM logs are available here:
http://www.pwsan.com/omap/testlogs/warnings_a_cleanup_3.7/20120912025927/
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Merge tag 'omap-cleanup-b-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into cleanup-makefile-sparse
smatch and string-wrapping cleanups for the OMAP subarch code.
These changes fix some of the more meaningful warnings that smatch
returns for the OMAP subarch code, and unwraps strings that are
wrapped at the 80-column boundary, to conform with the current
practice.
Basic build, boot, and PM logs are available here:
http://www.pwsan.com/omap/testlogs/warnings_a_cleanup_3.7/20120912025927/
As the plat and mach includes need to disappear for single zImage work,
we need to remove plat/hardware.h.
Do this by splitting plat/hardware.h into omap1 and omap2+ specific files.
The old plat/hardware.h already has omap1 only defines, so it gets moved
to mach/hardware.h for omap1. For omap2+, we use the local soc.h
that for now just includes the related SoC headers to keep this patch more
readable.
Note that the local soc.h still includes plat/cpu.h that can be dealt
with in later patches. Let's also include plat/serial.h from common.h for
all the board-*.c files. This allows making the include files local later
on without patching these files again.
Note that only minimal changes are done in this patch for the
drivers/watchdog/omap_wdt.c driver to keep things compiling. Further
patches are needed to eventually remove cpu_is_omap usage in the drivers.
Also only minimal changes are done to sound/soc/omap/* to remove the
unneeded includes and to define OMAP44XX_MCPDM_L3_BASE locally so there's
no need to include omap44xx.h.
While at it, also sort some of the includes in the standard way.
Cc: linux-watchdog@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Liam Girdwood <lrg@ti.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Find and unwrap wrapped strings in the style:
pr_debug("clockdomain: hardware cannot set/clear wake up of "
"%s when %s wakes up\n", clkdm1->name, clkdm2->name);
Keeping these strings contiguous seems to be the current Linux kernel
policy.
The offending lines were found with the following command:
pcregrep -rnM '"\s*$\s*"' arch/arm/*omap*
While here, some messages have been clarified, some pr_warning(
... calls have been converted to pr_warn( ..., and some printk(KERN_*
... have been converted to pr_*.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This adds support for three new SoC types:
* The mvebu platform includes Marvell's Armada XP and Armada 370 chips,
made by the mvebu business unit inside of Marvell. Since the same
group also made the older but similar platforms we call "orion5x",
"kirkwood", "mv78xx0" and "dove", we plan to move all of them into
the mach-mvebu directory in the future.
* socfpga is Altera's platform based on Cortex-A9 cores and a lot of
FPGA space. This is similar to the Xilinx zynq platform we already
support. The code is particularly clean, which is helped by the fact
that the hardware doesn't do much besides the parts that are
expected to get added in the FPGA.
* The OMAP subarchitecture gains support for the latest generation,
the OMAP5 based on the new Cortex-A15 core. Support is rather
rudimentary for now, but will be extended in the future.
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Merge tag 'newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull support for three new arm SoC types from Arnd Bergmann:
- The mvebu platform includes Marvell's Armada XP and Armada 370 chips,
made by the mvebu business unit inside of Marvell. Since the same
group also made the older but similar platforms we call "orion5x",
"kirkwood", "mv78xx0" and "dove", we plan to move all of them into
the mach-mvebu directory in the future.
- socfpga is Altera's platform based on Cortex-A9 cores and a lot of
FPGA space. This is similar to the Xilinx zynq platform we already
support. The code is particularly clean, which is helped by the fact
that the hardware doesn't do much besides the parts that are expected
to get added in the FPGA.
- The OMAP subarchitecture gains support for the latest generation, the
OMAP5 based on the new Cortex-A15 core. Support is rather
rudimentary for now, but will be extended in the future.
* tag 'newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (25 commits)
ARM: socfpga: initial support for Altera's SOCFPGA platform
arm: mvebu: generate DTBs for supported SoCs
ARM: mvebu: MPIC: read number of interrupts from control register
arm: mach-mvebu: add entry to MAINTAINERS
arm: mach-mvebu: add compilation/configuration change
arm: mach-mvebu: add defconfig
arm: mach-mvebu: add documentation for new device tree bindings
arm: mach-mvebu: add support for Armada 370 and Armada XP with DT
arm: mach-mvebu: add source files
arm: mach-mvebu: add header
clocksource: time-armada-370-xp: Marvell Armada 370/XP SoC timer driver
ARM: Kconfig update to support additional GPIOs in OMAP5
ARM: OMAP5: Add the build support
arm/dts: OMAP5: Add omap5 dts files
ARM: OMAP5: board-generic: Add device tree support
ARM: omap2+: board-generic: clean up the irq data from board file
ARM: OMAP5: Add SMP support
ARM: OMAP5: Add the WakeupGen IP updates
ARM: OMAP5: l3: Add l3 error handler support for omap5
ARM: OMAP5: gpmc: Update gpmc_init()
...
Conflicts:
Documentation/devicetree/bindings/arm/omap/omap.txt
arch/arm/mach-omap2/Makefile
drivers/clocksource/Kconfig
drivers/clocksource/Makefile
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
...
Move the irq_match arrays and the irq init functions of OMAP 2,3
and 4 based boards out of board-generic.c file and also rename the
irq init function to match the interrupt controller present in
the SOCs.
This is a preparatory patch to add the OMAP5 evm board's irq init
support with device tree.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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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mergetag object c59b537d87
type commit
tag omap-devel-dmtimer-for-v3.6
tagger Tony Lindgren <tony@atomide.com> 1341130362 -0700
Here are some omap dmtimer changes to make it easier to add
device tree support for dmtimer by simplifying the platform
data structure used by dmtimr.
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mergetag object 6fd8246b1c
type commit
tag omap-devel-am33xx-for-v3.6
tagger Tony Lindgren <tony@atomide.com> 1341131157 -0700
Here are changes to add support for am33xx processors for the
clock, power, and voltagedomains.
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Merge tags 'omap-cleanup-for-v3.6', 'omap-devel-dmtimer-for-v3.6' and 'omap-devel-am33xx-for-v3.6' into devel-am33xx-part2
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.
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>
This patch adds minimal support for AM335X machine init.
During last merge window, two separate patches supporting am33xx
machine init had been submitted,
1. Link to earlier Baseport patch submission (Legacy):
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg59325.html
2. Link to earlier DT based machine init support patch submission:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg61398.html
And both had got accepted at that time, but got missed during
merge window.
But now, since we have taken decision to make am33xx as a separate
class and not to follow omap3 family, these patches needs to changes
accordingly (only changes),
- Combine both the patches, since early init and timer init
used in board-generic.c file requires them.
- Remove dependency on AM3517EVM, and only use DT approach
for machine init.
- Change the config option (as changed recently)
CONFIG_SOC_OMAPAM33XX --> CONFIG_SOC_AM33XX
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
More cleanups, continuing an earlier set with omap and samsung specific
cleanups. These could not go into the first set because they have
dependencies on various other series that in turn depend on the first
cleanups.
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Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc cleanups (part 2) from Olof Johansson:
"More cleanups, continuing an earlier set with omap and samsung
specific cleanups. These could not go into the first set because they
have dependencies on various other series that in turn depend on the
first cleanups."
Fixed up conflicts in arch/arm/plat-omap/counter_32k.c due to commit
bd0493eaaf5c: "move read_{boot,persistent}_clock to the architecture
level" that changed how the persistent clocks were handled. And trivial
conflicts in arch/arm/mach-omap1/common.h due to just independent
changes close to each other.
* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits)
ARM: SAMSUNG: merge plat-s5p into plat-samsung
ARM: SAMSUNG: move options for common s5p into plat-samsung/Kconfig
ARM: SAMSUNG: move setup code for s5p mfc and mipiphy into plat-samsung
ARM: SAMSUNG: move platform device for s5p uart into plat-samsung
ARM: SAMSUNG: move hr timer for common s5p into plat-samsung
ARM: SAMSUNG: move pm part for common s5p into plat-samsung
ARM: SAMSUNG: move interrupt part for common s5p into plat-samsung
ARM: SAMSUNG: move clock part for common s5p into plat-samsung
ARM: S3C24XX: Use common macro to define resources on dev-uart.c
ARM: S3C24XX: move common clock init into common.c
ARM: S3C24XX: move common power-management code to mach-s3c24xx
ARM: S3C24XX: move plat-s3c24xx/dev-uart.c into common.c
ARM: S3C24XX: move plat-s3c24xx/cpu.c
ARM: OMAP2+: Kconfig: convert SOC_OMAPAM33XX to SOC_AM33XX
ARM: OMAP2+: Kconfig: convert SOC_OMAPTI81XX to SOC_TI81XX
GPMC: add ECC control definitions
ARM: OMAP2+: dmtimer: remove redundant sysconfig context restore
ARM: OMAP: AM35xx: convert 3517 detection/flags to AM35xx
ARM: OMAP: AM35xx: remove redunant cpu_is checks for AM3505
ARM: OMAP1: Pass dma request lines in platform data to MMC driver
...
These bug fixes were not important enough to have them included in the
v3.4 release, mostly because they cover harmless warnings or unrealistic
configurations. Instead we queue them up to be picked up in the next
merge window.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull non-critical arm-soc bug fixes from Olof Johansson:
"These bug fixes were not important enough to have them included in the
v3.4 release, mostly because they cover harmless warnings or
unrealistic configurations. Instead we queue them up to be picked up
in the next merge window."
Fixed up trivial conflict in arch/arm/mach-omap2/board-omap4panda.c
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: spear6xx: remove board selection options
ARM: OMAP: igep0020: Specify the VPLL2 regulator unconditionally
ARM: OMAP2+: INTC: fix Kconfig option for TI81XX
ARM: OMAP2+: remove incorrect irq_chip ack field
ARM: OMAP4: Adding ID for OMAP4460 ES1.1
ARM: OMAP4: panda: add statics to remove warnings
ARM: OMAP2+: Incorrect Register Offsets in OMAP Mailbox
ARM: OMAP: fix trivial warnings for dspbridge
arm: davinci: use for_each_set_bit_from
ARM: OMAP4: hsmmc: check for null pointer
ARM: OMAP1: fix compilation issue in board-sx1.c
ARM: disable SUSPEND/ARCH_SUSPEND_POSSIBLE for ARCH_TEGRA
ARM: davinci: da850-evm: fix section mismatch
ARM: tegra: add pll_x freq table entry for 750MHz
ARM: davinci: mark spi_board_info arguments as const
ARM: davinci: fix incorrect pdctl next bit position
Without an ->irq_set_wake() method in an irq_chip, calls to
enable_irq_wake() will fail. This also causes these interrupts to not
be able to abort suspend (via check_wakeup_irqs() in late suspend.)
Currently, we don't implement ->irq_set_wake() for INTC interrupts
because they default to be wakeup enabled by setting the GRPSEL bits
in PM init. Even though there is no ->irq_set_wake(), we want
enable_irq_wake() to succeed so these interrupts can abort suspend
when necessary.
To fix, set IRQCHIP_SKIP_SET_WAKE flag for all the INTC
interrupts which avoids trying to check irq_chip->irq_set_wake()
and failing when it doesn't exist.
Longer term, we need to implement ->irq_set_wake() for the INTC
which can manage the appropriate GRPSEL bits.
Signed-off-by: NeilBrown <neilb@suse.de>
[khilman@ti.com: rework changelog]
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
No need to have an OMAP prefix on these SoCs that are in the family
but arent' really called OMAP.
Simple rename: CONFIG_SOC_OMAPTI81XX --> CONFIG_SOC_TI81XX
No functional change.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The INTC core is using a Kconfig option for TI816x which doesn't
exist. Convert it to use TI81XX.
Cc: Hemant Pedanekar <hemantp@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Each irq_chip for the main interrupt controller has offsets set for irq
masking registers, which added to respective base results in a pointer
to appropriate hardware register. However this is not correct for
INTC_CONTROL as there is only one INTC_CONTROL register. This does not
cause problems because generic ack code is never called, but remove
this assignment to avoid confusion.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
sparse warns when 0 is passed to a function expecting a pointer argument.
Resolve these warnings by replacing the 0 with NULL.
arch/arm/plat-omap/include/plat/dmtimer.h:319:34: warning: Using plain integer as NULL pointer
arch/arm/plat-omap/include/plat/dmtimer.h:324:35: warning: Using plain integer as NULL pointer
arch/arm/mach-omap2/irq.c:294:22: warning: Using plain integer as NULL pointer
arch/arm/mach-omap1/board-palmz71.c:292:50: warning: Using plain integer as NULL pointer
arch/arm/mach-omap1/board-palmz71.c:295:73: warning: Using plain integer as NULL pointer
arch/arm/mach-omap1/ams-delta-fiq.c:105:63: warning: Using plain integer as NULL pointer
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Several C files in arch/arm/mach-omap* and arch/arm/plat-omap declare
functions that are used by other files, but don't include the header
file where the prototype is declared. This results in the following
warnings from sparse:
arch/arm/mach-omap2/irq.c:114:5: warning: symbol 'omap_irq_pending' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:186:13: warning: symbol 'omap2_init_irq' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:191:13: warning: symbol 'omap3_init_irq' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:196:13: warning: symbol 'ti81xx_init_irq' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:233:39: warning: symbol 'omap2_intc_handle_irq' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:242:6: warning: symbol 'omap_intc_save_context' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:265:6: warning: symbol 'omap_intc_restore_context' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:291:6: warning: symbol 'omap3_intc_suspend' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:297:6: warning: symbol 'omap3_intc_prepare_idle' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:306:6: warning: symbol 'omap3_intc_resume_idle' was not declared. Should it be static?
arch/arm/mach-omap2/irq.c:312:39: warning: symbol 'omap3_intc_handle_irq' was not declared. Should it be static?
arch/arm/mach-omap2/omap-secure.c:59:12: warning: symbol 'omap_secure_ram_reserve_memblock' was not declared. Should it be static?
arch/arm/mach-omap2/board-zoom-display.c:133:13: warning: symbol 'zoom_display_init' was not declared. Should it be static?
arch/arm/plat-omap/common.c:73:13: warning: symbol 'omap_init_consistent_dma_size' was not declared. Should it be static?
arch/arm/mach-omap1/irq.c:61:5: warning: symbol 'omap_irq_flags' was not declared. Should it be static?
arch/arm/mach-omap1/irq.c:179:13: warning: symbol 'omap1_init_irq' was not declared. Should it be static?
arch/arm/mach-omap1/reset.c:11:6: warning: symbol 'omap1_restart' was not declared. Should it be static?
Fix by including the appropriate header files.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Senthilvadivu Guruswamy <svadivu@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Most of these patches convert code from using static platform data to
describing the hardware in the device tree. This is only the first
half of the changes for v3.4 because a lot of patches for this topic
came in the last week before the merge window.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: device tree work" from Arnd Bergmann:
"Most of these patches convert code from using static platform data to
describing the hardware in the device tree. This is only the first
half of the changes for v3.4 because a lot of patches for this topic
came in the last week before the merge window.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h}
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits)
Document: devicetree: add OF documents for arch-mmp
ARM: dts: append DTS file of pxa168
ARM: mmp: append OF support on pxa168
ARM: mmp: enable rtc clk in pxa168
i2c: pxa: add OF support
serial: pxa: add OF support
arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board
ARM: OMAP2+: Remove extra ifdefs for board-generic
ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected
ASoC: DT: Add digital microphone binding to PAZ00 board.
ARM: dt: Add ARM PMU to tegra*.dtsi
ARM: at91: at91sam9x5cm/dt: add leds support
ARM: at91: usb_a9g20/dt: add gpio-keys support
ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support
ARM: at91: at91sam9m10g45ek/dt: add leds support
ARM: at91: usb_a9g20/dt: add leds support
ARM: at91/pio: add new PIO3 features
ARM: at91: add sam9_smc.o to at91sam9x5 build
ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
ARM: at91/tc: add device tree support to atmel_tclib
...
Add a function to initialize the OMAP2/3 interrupt controller (INTC)
using a device tree node.
This version take advantage of the new irq_domain_add_legacy API.
Replace some printk() with the proper pr_ macro.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
There's no need to have these defines in plat/io.h.
Note that we now need to ifdef omap_read/write calls
as they will be available for omap1 only.
While at it, clean up the includes to group them like
they typically are grouped.
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch updates existing macros, functions used for TI816X, to enable
addition of other SoCs belonging to TI81XX family (e.g., TI814X).
The approach taken is to use TI81XX/ti81xx for code/data going to be common
across all TI81XX devices.
cpu_is_ti81xx() is introduced to handle code common across TI81XX devices.
In addition, ti8168_evm_map_io() is now replaced with ti81xx_map_io() and moved
in mach-omap2/common.c as same will be used for TI814X and is not board
specific.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Provide the OMAP2/3 IRQ code with low level handlers that can be used
by platforms using CONFIG_MULTI_IRQ_HANDLER. Though the handlers are
written in C, the compiled code looks very similar to its assembly
counterpart (at least with my gcc 4.4.1).
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Fixes bug where variable i was redundantly used for counting two nested loops.
Signed-off-by: Tapani Utriainen <tapani@technexion.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This allows us to remove cpu_is_omap calls from init_irq functions.
There should not be any need for cpu_is_omap calls as at this point.
During the timer init we only care about SoC generation, and not about
subrevisions.
The main reason for the patch is that we want to initialize only
minimal omap specific code from the init_early call.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Use generic irq chip for omap2 & 3.
Note that this patch also leaves out the spurious IRQ warning
for omap3.
This warning should no longer be needed as the interrupt handlers
for various devices have implemented the necessayr read-back of
the posted write.
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch updates the common machine specific source files with support for
TI816X.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Fix the following compile warning:
arch/arm/mach-omap2/irq.c:64:31: warning: 'intc_context' defined but not
used
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add comments and IDs for the following erratas:
- i540: MPU cannot exit from Standby,
- i478: Unexpected Cold-Reset is generated when device is coming
back from OFF mode
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch fixes miscellaneous sparse warnings in mach-omap2.
arch/arm/mach-omap2/board-am3517evm.c:141:17: warning: Initializer entry defined twice
arch/arm/mach-omap2/board-am3517evm.c:142:18: also defined here
arch/arm/mach-omap2/irq.c:50:35: warning: Using plain integer as NULL pointer
Signed-off-by: Manjunath Kondaiah G <manjugk@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Ensure valid base address during IRQ init. Fixes compiler warning
about potential use of uninitialized variable.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
OMAP interrupt controller goes to unknown state when there is right
combination of l3,l4 sleep/wake-up transitions, l4 autoidle in
interrupt controller and some interrupt. When this happens, interrupts
are not delivered to ARM anymore and ARM will remain in WFI (wait for
interrupt) until interrupt controller is forced to wake-up
(i.e. lauterbach).
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Suspending drivers may still generate interrupts just before their suspend is
completed. Any pending interrupts here will prevent sleep.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Add context save and restore for the INTC module to support off-mode.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Add common omap2/3 function to check wether there is irq pending.
Switch to use it in omap2 pm code instead of its own.
Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This reverts commit 5461af5af5.
Adding a disable hook to the irq_chip is not the way to fix the
problem being addressed by this patch. Instead, we need to fix
support for [enable|disable]_irq_wake().
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
SPURIOUSIRQ is contained in bits 31:7 of INTC_SIR, so
INTC_SIR must be right shifted by 7, not 6.
No change in logic, only changes for better readability.
Refer to register definition of INTCPS_SIR_IRQ in OMAP3 Manual.
Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
By Ingo Molnar, interrupts are not masked by default.
(refer to 76d2160147)
But if interrupts are not masked, the processor can wake up while in
Suspend-to-RAM state by an external interrupt. For example, if an
OMAP3 board is connected to Host PC by USB and entered to Suspend-to-RAM
state, it wake up automatically by M_IRQ_92. The disable_irq() function
can't disable the interrupt in H/W level, So I modified
arch/arm/mach-omap2/irq.c
Signed-off-by: Kim Kyuwon <chammoru@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Stefan Sørensen