Commit a530257240 (OMAP: Add debugfs
node to show the summary of all clocks) introduced clock summary,
however, we are interested in seeing snapshot of the clock state, not
in dynamically changing clock configurations as the data provided by
clock summary will then be useless for debugging configuration
issues. So, hold the common lock when dumping the clock summary.
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
[nm@ti.com: added commit message]
Signed-off-by: Nishanth Menon <nm@ti.com>
[paul@pwsan.com: minor edits to commit message]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
The OMAP dmtimer driver allows you to dynamically configure the functional
clock that drives the timer logic. The dmtimer driver uses the device name and
a "con-id" string to search for the appropriate functional clock.
Currently, we define a clock alias for each functional clock source each timer
supports. Some functional clock sources are common to all of the timers on a
device and so for these clock sources we can use a single alias with a unique
con-id string.
The possible functional clock sources for an OMAP device are a 32kHz clock,
a system (MHz range) clock and (for OMAP2 only) an external clock. By defining
a unique con-id name for each of these (timer_32k_ck, timer_sys_ck and
timer_ext_ck) we can eliminate a lot of the clock aliases for timers. This
reduces code, speeds-up searches and clock initialisation time.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
OMAP1 uses an architecture specific function for setting the dmtimer clock
source, where as the OMAP2+ devices use the clock framework. Eventually OMAP1
device should also use the clock framework and hence we should not any
architecture specific functions.
For now move the OMAP2+ function for configuring the clock source into the
dmtimer driver. Therefore, we do no longer need to specify an architecture
specific function for setting the clock source for OMAP2+ devices. This will
simplify device tree migration of the dmtimers for OMAP2+ devices.
From now on, only OMAP1 devices should specify an architecture specific
function for setting the clock source via the platform data set_dmtimer_src()
function pointer.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
OMAP1 dmtimer support is currently broken. When a dmtimer is requested by the
omap_dm_timer_request() function fails to allocate a dmtimer because the call
to clk_get() inside omap_dm_timer_prepare fails. The clk_get() fails simply
because the clock data for the OMAP1 dmtimers is not present.
Ideally this should be fixed by moving OMAP1 dmtimers to use the clock
framework. For now simply fix this by using the "TIMER_NEEDS_RESET" flag to
identify an OMAP1 device and avoid calling clk_get(). Although this is not
the ideal fix and should be corrected, this flag has already been use for the
same purpose in omap_dm_timer_stop().
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
For OMAP1 devices, it is necessary to perform a manual reset of the timer.
Currently, this is indicating by setting the "needs_manual_reset" variable in
the platform data. Instead of using an extra variable to indicate this add a new
timer capabilities flag to indicate this and remove the "needs_manual_reset"
member from the platform data.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
For OMAP2+ devices, a function pointer that returns the number of times a timer
power domain has lost context is passed to the dmtimer driver. This function
pointer is only populated for OMAP2+ devices and it is pointing to a platform
function. Given that this is a platform function, we can simplify the code by
removing the function pointer and referencing the function directly. We can use
the OMAP_TIMER_ALWON flag to determine if we need to call this function for
OMAP1 and OMAP2+ devices.
The benefit of this change is the we can remove the function pointer from the
platform data and simplifies the dmtimer migration to device-tree.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The platform data variable loses_context is used to determine if the timer may
lose its logic state during power transitions and so needs to be restored. This
information is also provided in the HWMOD device attributes for OMAP2+ devices
via the OMAP_TIMER_ALWON flag. When this flag is set the timer will not lose
context. So use the HWMOD device attributes to determine this.
For OMAP1 devices, loses_context is never set and so set the OMAP_TIMER_ALWON
flag for OMAP1 timers to ensure that code is equivalent.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Currently, the dmtimer determines whether an timer can support an external
clock source (sys_altclk) for driving the timer by the IP version. Only
OMAP24xx devices can support an external clock source, but the IP version
between OMAP24xx and OMAP3xxx is common and so this incorrectly indicates
that OMAP3 devices can use an external clock source.
Rather than use the IP version, just let the clock framework handle this.
If the "alt_ck" does not exist for a timer then the clock framework will fail
to find the clock and hence will return an error. By doing this we can eliminate
the "timer_ip_version" variable passed as part of the platform data and simplify
the code.
We can also remove the timer IP version from the HWMOD data because the dmtimer
driver uses the TIDR register to determine the IP version.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Although the OMAP timers share a common hardware design, there are some
differences between the timer instances in a given device. For example, a timer
maybe in a power domain that can be powered-of, so can lose its logic state and
need restoring where as another may be in power domain that is always be on.
Another example, is a timer may support different clock sources to drive the
timer. This information is passed to the dmtimer via the following platform data
structure.
struct dmtimer_platform_data {
int (*set_timer_src)(struct platform_device *pdev, int source);
int timer_ip_version;
u32 needs_manual_reset:1;
bool loses_context;
int (*get_context_loss_count)(struct device *dev);
};
The above structure uses multiple variables to represent the timer features.
HWMOD also stores the timer capabilities using a bit-mask that represents the
features supported. By using the same format for representing the timer
features in the platform data as used by HWMOD, we can ...
1. Use the flags defined in the plat/dmtimer.h to represent the features
supported.
2. For devices using HWMOD, we can retrieve the features supported from HWMOD.
3. Eventually, simplify the platform data structure to be ...
struct dmtimer_platform_data {
int (*set_timer_src)(struct platform_device *pdev, int source);
u32 timer_capability;
}
Another benefit from doing this, is that it will simplify the migration of the
dmtimer driver to device-tree. For example, in the current OMAP2+ timer code the
"loses_context" variable is configured at runtime by calling an architecture
specific function. For device tree this creates a problem, because we would need
to call the architecture specific function from within the dmtimer driver.
However, such attributes do not need to be queried at runtime and we can look up
the attributes via HWMOD or device-tree.
This changes a new "capability" variable to the platform data and timer
structure so we can start removing and simplifying the platform data structure.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
During early boot, one or two dmtimers are reserved by the kernel as system
timers (for clocksource and clockevents). These timers are marked as reserved
and the dmtimer driver is notified which timers have been reserved via the
platform data information.
For OMAP2+ devices the timers reserved may vary depending on device and compile
flags. Therefore, it is not easy to assume which timers we be reserved for the
system timers. In order to migrate the dmtimer driver to support device-tree we
need a way to pass the timers reserved for system timers to the dmtimer driver.
Using the platform data structure will not work in the same way as it is
currently used because the platform data structure will be stored statically in
the dmtimer itself and the platform data will be selected via the device-tree
match device function (of_match_device).
There are a couple ways to workaround this. One option is to store the system
timers reserved for the kernel in the device-tree and query them on boot.
The downside of this approach is that it adds some delay to parse the DT blob
to search for the system timers. Secondly, for OMAP3 devices we have a
dependency on compile time flags and the device-tree would not be aware of that
kernel compile flags and so we would need to address that.
The second option is to add a function to the dmtimer code to reserved the
system timers during boot and so the dmtimer knows exactly which timers are
being used for system timers. This also allows us to remove the "reserved"
member from the timer platform data. This seemed like the simpler approach and
so was implemented here.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
In the plat/dmtimer.h there is a structure named "clk" declared. This structure
is not used and appears to be left over from previous code. Hence, remove this
unused structure.
Verified that both omap1 and omap2plus kernel configurations build with this
change.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
If CONFIG_MMC_OMAP is not set and CONFIG_MMC_OMAP_HS is set,
we can get error: redefinition of `omap242x_init_mmc' error.
Fix it by removing MMC_OMAP_HS from MMC_OMAP ifdefs as they do
not depend on each other.
While at it, also prettify the formatting a bit.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add support for low level debugging on AM335X EVM (AM33XX family).
Currently only support for UART1 console, which is used on AM335X EVM
is added.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
As the FS USB code is not being actively used for omap2+
there's no point keeping it around for omap2+.
Let's make the FS USB platform init code omap1 only so
we can remove the last user of omap_read/write for omap2+,
and simplify things for further USB, DMA, and device tree
related work.
While at it, also group the mach includes for the related
drivers.
Cc: linux-usb@vger.kernel.org
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use omap_disable_channel_irq() function instead of directly accessing CICR
register in various functions.
The omap_disable_chanel_irq() function now clears pending interrupts
and disables interrupt on channel.
Functions omap2_enable_irq_lch()/omap2_disable_irq_lch() clear interrupt
status register.
Signed-off-by: Oleg Matcovschi <oleg.matcovschi@ti.com>
Tested-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
[tony@atomide.com: updated comments to clarify CICR access]
Signed-off-by: Tony Lindgren <tony@atomide.com>
- Updates to mxc_nand and gpmi drivers to support new boards and device tree
- Improve consistency of information about ECC strength in NAND devices
- Clean up partition handling of plat_nand
- Support NAND drivers without dedicated access to OOB area
- BCH hardware ECC support for OMAP
- Other fixes and cleanups, and a few new device IDs
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Merge tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd
Pull mtd update from David Woodhouse:
- More robust parsing especially of xattr data in JFFS2
- Updates to mxc_nand and gpmi drivers to support new boards and device tree
- Improve consistency of information about ECC strength in NAND devices
- Clean up partition handling of plat_nand
- Support NAND drivers without dedicated access to OOB area
- BCH hardware ECC support for OMAP
- Other fixes and cleanups, and a few new device IDs
Fixed trivial conflict in drivers/mtd/nand/gpmi-nand/gpmi-nand.c due to
added include files next to each other.
* tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd: (75 commits)
mtd: mxc_nand: move ecc strengh setup before nand_scan_tail
mtd: block2mtd: fix recursive call of mtd_writev
mtd: gpmi-nand: define ecc.strength
mtd: of_parts: fix breakage in Kconfig
mtd: nand: fix scan_read_raw_oob
mtd: docg3 fix in-middle of blocks reads
mtd: cfi_cmdset_0002: Slight cleanup of fixup messages
mtd: add fixup for S29NS512P NOR flash.
jffs2: allow to complete xattr integrity check on first GC scan
jffs2: allow to discriminate between recoverable and non-recoverable errors
mtd: nand: omap: add support for hardware BCH ecc
ARM: OMAP3: gpmc: add BCH ecc api and modes
mtd: nand: check the return code of 'read_oob/read_oob_raw'
mtd: nand: remove 'sndcmd' parameter of 'read_oob/read_oob_raw'
mtd: m25p80: Add support for Winbond W25Q80BW
jffs2: get rid of jffs2_sync_super
jffs2: remove unnecessary GC pass on sync
jffs2: remove unnecessary GC pass on umount
jffs2: remove lock_super
mtd: gpmi: add gpmi support for mx6q
...
After a clean-up of the interfaces the OMAP Smartreflex IP driver is now a
generic driver. Move it to drivers/power/avs/.
The build is controlled by the following Kconfig options:
. CONFIG_POWER_AVS: general knob for Adaptive Voltage Scaling support,
. CONFIG_POWER_AVS_OMAP: AVS(Adaptive Voltage Scaling)
support on OMAP containing the version 1 or version 2 of the SmartReflex IP,
. CONFIG_POWER_AVS_OMAP_CLASS3: Class 3 implementation of Smartreflex.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Add a Kconfig menu (POWER_AVS) and rename the Kconfig options
for the OMAP SmartReflex implementation:
CONFIG_OMAP_SMARTREFLEX renames to CONFIG_POWER_AVS_OMAP
CONFIG_OMAP_SMARTREFLEX_CLASS3 renames to CONFIG_POWER_AVS_OMAP_CLASS3
This change makes the SmartReflex implementation ready for the move
to drivers/.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Move the omap_volt_data structure from mach-omap2/ directory
to arch/arm/plat-omap/include/plat/ so that it is accessible
from both mach-omap2 and drivers directories.
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.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
bd0493eaaf: "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
...
Remove multiple unused cpu_is_omap35xx macros.
In particular, the cpu_is_omap35* macros for 3503, 3515, 3525 are removed
because they are using omap_has_* feature checks and we want to
remove specific feature detection from SoC family detection.
There are no longer any cpu_is_* checks that depend on specific IP
detection.
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Lots of gpio changes, both to core code and drivers. Changes do touch
architecture code to remove the need for separate arm/gpio.h includes
in most architectures. Some new drivers are added, and a number of
gpio drivers are converted to use irq_domains for gpio inputs used as
interrupts. Device tree support has been amended to allow multiple
gpio_chips to use the same device tree node. Remaining changes are
primarily bug fixes.
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull GPIO driver changes from Grant Likely:
"Lots of gpio changes, both to core code and drivers.
Changes do touch architecture code to remove the need for separate
arm/gpio.h includes in most architectures.
Some new drivers are added, and a number of gpio drivers are converted
to use irq_domains for gpio inputs used as interrupts. Device tree
support has been amended to allow multiple gpio_chips to use the same
device tree node.
Remaining changes are primarily bug fixes."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (33 commits)
gpio/generic: initialize basic_mmio_gpio shadow variables properly
gpiolib: Remove 'const' from data argument of gpiochip_find()
gpio/rc5t583: add gpio driver for RICOH PMIC RC5T583
gpiolib: quiet gpiochip_add boot message noise
gpio: mpc8xxx: Prevent NULL pointer deref in demux handler
gpio/lpc32xx: Add device tree support
gpio: Adjust of_xlate API to support multiple GPIO chips
gpiolib: Implement devm_gpio_request_one()
gpio-mcp23s08: dbg_show: fix pullup configuration display
Add support for TCA6424A
gpio/omap: (re)fix wakeups on level-triggered GPIOs
gpio/omap: fix broken context restore for non-OFF mode transitions
gpio/omap: fix missing check in *_runtime_suspend()
gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()
gpio/omap: remove suspend/resume callbacks
gpio/omap: remove retrigger variable in gpio_irq_handler
gpio/omap: remove saved_wakeup field from struct gpio_bank
gpio/omap: remove suspend_wakeup field from struct gpio_bank
gpio/omap: remove saved_fallingdetect, saved_risingdetect
gpio/omap: remove virtual_irq_start variable
...
Conflicts:
drivers/gpio/gpio-samsung.c
Here's the big TTY/serial driver pull request for the 3.5-rc1 merge window.
Nothing major in here, just lots of incremental changes from Alan and
Jiri reworking some tty core things to behave better and to get a more
solid grasp on some of the nasty tty locking issues.
There are a few tty and serial driver updates in here as well.
All of this has been in the linux-next releases for a while with no problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY updates from Greg Kroah-Hartman:
"Here's the big TTY/serial driver pull request for the 3.5-rc1 merge
window.
Nothing major in here, just lots of incremental changes from Alan and
Jiri reworking some tty core things to behave better and to get a more
solid grasp on some of the nasty tty locking issues.
There are a few tty and serial driver updates in here as well.
All of this has been in the linux-next releases for a while with no
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (115 commits)
serial: bfin_uart: Make MMR access compatible with 32 bits bf609 style controller.
serial: bfin_uart: RTS and CTS MMRs can be either 16-bit width or 32-bit width.
serial: bfin_uart: narrow the reboot condition in DMA tx interrupt
serial: bfin_uart: Adapt bf5xx serial driver to bf60x serial4 controller.
Revert "serial_core: Update buffer overrun statistics."
tty: hvc_xen: NULL dereference on allocation failure
tty: Fix LED error return
tty: Allow uart_register/unregister/register
tty: move global ldisc idle waitqueue to the individual ldisc
serial8250-em: Add DT support
serial8250-em: clk_get() IS_ERR() error handling fix
serial_core: Update buffer overrun statistics.
tty: drop the pty lock during hangup
cris: fix missing tty arg in wait_event_interruptible_tty call
tty/amiserial: Add missing argument for tty_unlock()
tty_lock: Localise the lock
pty: Lock the devpts bits privately
tty_lock: undo the old tty_lock use on the ctty
serial8250-em: Emma Mobile UART driver V2
Add missing call to uart_update_timeout()
...
Power management changes here are mostly for the omap platform, but also
include cpuidle changes for ux500 and suspend/resume code for mmp.
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Merge tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc power management changes from Olof Johansson:
"Power management changes here are mostly for the omap platform, but
also include cpuidle changes for ux500 and suspend/resume code for
mmp."
* tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset
ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports
ARM: OMAP4: hwmod data: I2C: add flag for context restore
ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports
ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data
ARM: OMAP2+: HDQ1W: add custom reset function
ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[]
ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API
ARM: OMAP3: clock data: add clockdomain for HDQ functional clock
ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported
ARM: OMAP2+: dmtimer: cleanup iclk usage
ARM: OMAP4+: Add prm and cm base init function.
ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header
ARM: OMAP3: Fix CM register bit masks
ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xx
ARM: OMAP3: clock data: treat all AM35x devices the same
...
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
These cleanups are basically all over the place. The idea is to collect
changes with minimal impact but large number of changes so we can avoid
them from distracting in the diffstat in the other series.
A significant number of lines get removed here, in particular because
the ixp2000 and ixp23xx platforms get removed. These have never been
extremely popular and have fallen into disuse over time with no active
maintainer taking care of them. The u5500 soc never made it into a
product, so we are removing it from the ux500 platform.
Many good cleanups also went into the at91 and omap platforms, as has
been the case for a number of releases.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull first batch of arm-soc cleanups from Olof Johansson:
"These cleanups are basically all over the place. The idea is to
collect changes with minimal impact but large number of changes so we
can avoid them from distracting in the diffstat in the other series.
A significant number of lines get removed here, in particular because
the ixp2000 and ixp23xx platforms get removed. These have never been
extremely popular and have fallen into disuse over time with no active
maintainer taking care of them. The u5500 soc never made it into a
product, so we are removing it from the ux500 platform.
Many good cleanups also went into the at91 and omap platforms, as has
been the case for a number of releases."
Trivial modify-delete conflicts in arch/arm/mach-{ixp2000,ixp23xx}
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (152 commits)
ARM: clps711x: Cleanup IRQ handling
ARM clps711x: Removed unused header mach/time.h
ARM: clps711x: Added note about support EP731x CPU to Kconfig
ARM: clps711x: Added missing register definitions
ARM: clps711x: Used own subarch directory for store header file
Dove: Fix Section mismatch warnings
ARM: orion5x: ts78xx debugging changes
ARM: orion5x: remove PM dependency from ts78xx
ARM: orion5x: ts78xx fix NAND resource off by one
ARM: orion5x: ts78xx whitespace cleanups
Orion5x: Fix Section mismatch warnings
Orion5x: Fix warning: struct pci_dev declared inside paramter list
ARM: clps711x: Combine header files into one for clps711x-targets
ARM: S3C24XX: Use common macro to define resources on mach-qt2410.c
ARM: S3C24XX: Use common macro to define resources on mach-osiris.c
ARM: EXYNOS: Adapt to cpuidle core time keeping and irq enable
ARM: S5PV210: Use common macro to define resources on mach-smdkv210.c
ARM: S5PV210: Use common macro to define resources on dev-audio.c
ARM: S5PC100: Use common macro to define resources on dev-audio.c
ARM: S5P64X0: Use common macro to define resources on dev-audio.c
...
This patch adds a simple BCH ecc computation api, similar to the
existing Hamming ecc api. It is intended to be used by the MTD layer.
It implements the following features:
- support 4-bit and 8-bit ecc computation
- do not protect user bytes in spare area, only data area is protected
- ecc for an erased NAND page (0xFFs) is also a sequence of 0xFFs
This last feature is obtained by adding a constant polynomial to
the hardware computed ecc. It allows to correct bitflips in blank pages
and is extremely useful to support filesystems such as UBIFS, which expect
erased pages to contain only 0xFFs.
This api has been tested on an OMAP3630 board.
Artem: The OMAP maintainer Tony Lindgren gave us his blessing for merging
this patch via the MTD tree.
Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The machine-specific omap2_mbox_startup is called only once
to initialize the whole mbox module, and as a result,
enabling the mbox irq at that point only works for the very first
mailbox instance opened.
Instead, this patch makes sure enable_irq() is called every
time a new mbox instance is opened. In addition, we're now
enabling the mbox's irq only after its notifier_block is registered,
to avoid possible race of receiving an interrupt without invoking
the user's notifier callback.
Signed-off-by: Juan Gutierrez <jgutierrez@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
[ohad@wizery.com: slightly reworded the commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Add register offsets for GPIO_IRQSTATUS_RAW_0, GPIO_IRQSTATUS_RAW_0
which are present on OMAP4+ processors. Now we can distinguish
conditions applicable to OMAP4,5 and those specific to OMAP24xx
and OMAP3xxx.
Cc: Kevin Hilman <khilman@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Cousson, Benoit <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Tony reported the following compile warning after commit
eeb3711b89 ("ARM: OMAP2+: clean up some
cppcheck warnings"):
arch/arm/plat-omap/usb.c: In function 'omap_otg_init':
arch/arm/plat-omap/usb.c:40: warning: unused variable 'status'
This happens if CONFIG_ARCH_OMAP_OTG is set but
CONFIG_USB_GADGET_OMAP, CONFIG_USB_OHCI_HCD,
CONFIG_USB_OHCI_HCD_MODULE, and CONFIG_USB_OTG are all unset.
Fix by localizing the status variable to the blocks that use it.
Compile-tested only, with omap2plus_defconfig and omap2plus_defconfig
with CONFIG_USB_OHCI_HCD and CONFIG_USB_OTG enabled.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Merge tag 'omap-cleanup-timer-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup2
Timer changes to make it easier to support various SoCs
By Vaibhav Hiremath
via Tony Lindgren
* tag 'omap-cleanup-timer-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: Make OMAP clocksource source selection using kernel param
ARM: OMAP2+: Replace space with underscore in the name field of system timers
ARM: OMAP1: Add checks for possible error condition in timer_init
except for the RNG driver that will be done later on.
As this depends on omap-devel-hwmod-data-for-v3.5 and causes merge
conflict with omap-fixes-non-critical-for-v3.5, this branch is based
on merge of the two.
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Merge tag 'omap-cleanup-devices-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup2
Changes to split plat-omap/devices.c into mach-omap1 and mach-omap2
except for the RNG driver that will be done later on.
As this depends on omap-devel-hwmod-data-for-v3.5 and causes merge
conflict with omap-fixes-non-critical-for-v3.5, this branch is based
on merge of the two.
By Tony Lindgren (7) and others
via Tony Lindgren (4) and Paul Walmsley (1)
* tag 'omap-cleanup-devices-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits)
ARM: OMAP1: Pass dma request lines in platform data to MMC driver
ARM: OMAP: Move omap_mmc_add() to mach-omap1
ARM: OMAP2: Use hwmod to initialize mmc for 2420
ARM: OMAP2+: Move omap_dsp_reserve_sdram_memblock() to mach-omap2
ARM: OMAP1: Move omap_init_uwire to mach-omap1
ARM: OMAP1: Move omap_init_audio() to keep the devices in alphabetical order
ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset
ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports
ARM: OMAP4: hwmod data: I2C: add flag for context restore
ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports
ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data
ARM: OMAP2+: HDQ1W: add custom reset function
ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[]
ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API
ARM: OMAP3: clock data: add clockdomain for HDQ functional clock
ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported
...
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Merge tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm
Data changes related to omap hwmod
By Paul Walmsley (4) and others
via Paul Walmsley (1) and Tony Lindgren (1)
* tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset
ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports
ARM: OMAP4: hwmod data: I2C: add flag for context restore
ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports
ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data
ARM: OMAP2+: HDQ1W: add custom reset function
ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
Note that this depends on omap-devel-hwmod-for-v3.5.
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Merge tag 'omap-devel-prcm-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm
Updates for PRCM (Power, Reset, Clock Management).
Note that this depends on omap-devel-hwmod-for-v3.5.
By Kevin Hilman (3) and others
via Paul Walmsley (2) and Tony Lindgren (1)
* tag 'omap-devel-prcm-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[]
ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API
ARM: OMAP3: clock data: add clockdomain for HDQ functional clock
ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported
ARM: OMAP2+: dmtimer: cleanup iclk usage
ARM: OMAP4+: Add prm and cm base init function.
ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header
ARM: OMAP3: Fix CM register bit masks
ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xx
ARM: OMAP3: clock data: treat all AM35x devices the same
ARM: OMAP3: clock data: replace 3503/3517 flag with AM35x flag for UART4
Note that this depends on a fix in omap-fixes-non-critical-for-v3.5,
so it's based on that.
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Merge tag 'omap-cleanup-renames-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup2
Simplify some SoC config options before things get too unreadable.
Note that this depends on a fix in omap-fixes-non-critical-for-v3.5,
so it's based on that.
By Kevin Hilman (3) and others
via Tony Lindgren
* tag 'omap-cleanup-renames-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Kconfig: convert SOC_OMAPAM33XX to SOC_AM33XX
ARM: OMAP2+: Kconfig: convert SOC_OMAPTI81XX to SOC_TI81XX
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: OMAP4: hsmmc: check for null pointer
ARM: OMAP1: fix compilation issue in board-sx1.c
Since hwmod framework now manages sysconfig context save/restore
there is no more need to touch this register in driver. Hence,
remove restore of sysconfig register in omap_timer_restore_context.
This was causing incorrect context restore of sysconfig register.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Currently cpu_is_omap3517() actually detects any device in the AM35x
family (3517 and no-SGX version 3505.) To make it more clear what is
being detected, convert the names from 3517 to AM35xx.
This adds a new soc_is_am35xx() which duplicates the cpu_is_omap3517().
In order to avoid cross-tree dependencies with clock-tree changes,
cpu_is_omap3517() is left until the clock changes are merged,
at which point cpu_is_omap3517() will be completely removed.
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
[tony@atomide.com: change to use soc_is_omap instead]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This hardware exists only on 2430 and later omaps, so there's no
need to have it in plat-omap/devices.c.
Note that we don't have any users for exported omap_dsp_get_mempool_base(),
so we can make it static.
Signed-off-by: Tony Lindgren <tony@atomide.com>
This hardware exists on omap1 only and there's no need to keep it
in plat-omap/devices.c. No functional changes.
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/plat-omap/devices.c: In function 'omap_dsp_reserve_sdram_memblock':
arch/arm/plat-omap/devices.c:170: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'phys_addr_t'
arch/arm/mach-omap2/dsp.c: In function 'omap_dsp_init':
arch/arm/mach-omap2/dsp.c:60: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'phys_addr_t'
arch/arm/mach-omap2/dsp.c:60: warning: format '%x' expects type 'unsigned int', but argument 4 has type 'phys_addr_t'
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Current OMAP code supports couple of clocksource options based
on compilation flag (CONFIG_OMAP_32K_TIMER). The 32KHz sync-timer
and a gptimer which can run on 32KHz or system clock (e.g 38.4 MHz).
So there can be 3 options -
1. 32KHz sync-timer
2. Sys_clock based (e.g 13/19.2/26/38.4 MHz) gptimer
3. 32KHz based gptimer.
The optional gptimer based clocksource was added so that it can
give the high precision than sync-timer, so expected usage was 2
and not 3.
Unfortunately option 2, clocksource doesn't meet the requirement of
free-running clock as per clocksource need. It stops in low power states
when sys_clock is cut. That makes gptimer based clocksource option
useless for OMAP2/3/4 devices with sys_clock as a clock input.
So, in order to use option 2, deeper idle state MUST be disabled.
Option 3 will still work but it is no better than 32K sync-timer
based clocksource.
We must support both sync timer and gptimer based clocksource as
some OMAP based derivative SoCs like AM33XX does not have the
sync timer.
Considering above, make sync-timer and gptimer clocksource runtime
selectable so that both OMAP and AMXXXX continue to use the same code.
And, in order to precisely configure/setup sched_clock for given
clocksource, decision has to be made early enough in boot sequence.
So, the solution is,
Use standard kernel parameter ("clocksource=") to override
default 32k_sync-timer, in addition to this, we also use hwmod database
lookup mechanism, through which at run-time we can identify availability
of 32k-sync timer on the device, else fall back to gptimer.
Also, moved low-level SoC specific init code to respective files,
(mach-omap1/timer32k.c and mach-omap2/timer.c)
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Cc: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
fix for a longstanding watchdog timer integration problem.
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Merge tag 'omap-devel-c-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-hwmod-data
Some OMAP IP block data additions for 3.5, along with a
fix for a longstanding watchdog timer integration problem.
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Merge tag 'v3.4-rc6' into next/cleanup
Linux 3.4-rc6
Resolve conflict where an u5500 file had a bugfix go in, but was
deleted in the branch staged for next merge window.
Signed-off-by: Olof Johansson <olof@lixom.net>
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Merge tag 'omap-cleanup-hwmod-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Clean up of hwmod to shrink down the IP block interconnections
By Paul Walmsley
via Paul Walmsley (1) and Tony Lindgren (1)
* tag 'omap-cleanup-hwmod-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (29 commits)
ARM: OMAP2xxx: hwmod data: start to fix the IVA1, IVA2 and DSP
ARM: OMAP3: hwmod data: add IVA hard reset lines, main clock, clockdomain
ARM: OMAP3: hwmod data: fix IVA interface clock
ARM: OMAP2xxx: hwmod data: share common interface data
ARM: OMAP2xxx: hwmod data: share common hwmods between OMAP2420 and OMAP2430
ARM: OMAP2+: hwmod data: remove forward declarations, reorganize
ARM: OMAP: hwmod: remove code support for direct hwmod registration
ARM: OMAP2+: hwmod data: convert to link registration
ARM: OMAP2+: hwmod: add support for link registration
ARM: OMAP2+: hwmod: consolidate finding the MPU port index and storing it
ARM: OMAP2+: hwmod: add function to iterate over struct omap_hwmod_ocp_if
ARM: OMAP2+: hwmod: add _find_mpu_rt_port()
ARM: OMAP2+: hwmod: extend OCP_* register offsets from 16 to 32 bits
ARM: OMAP4: hwmod data: uncomment some "excluded" hwmods
ARM: OMAP4: hwmod data: add OCP_USER_DSP; mark omap44xx_dsp__iva appropriately
ARM: OMAP4: hwmod data: remove bandgap hwmod
ARM: OMAP3: hwmod data: GPTIMER12 is attached to a separate interconnect
ARM: OMAP3: hwmod data: add DSS->L3 interconnect for 3430ES1
ARM: OMAP3: hwmod data: fix interfaces for the MMC hwmods
ARM: OMAP2/3: hwmod data: update old names
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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Merge tag 'omap-cleanup-sparse-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Sparse and cppcheck warning fixes
By Paul Walmsley
via Paul Walmsley (1) and Tony Lindgren (1)
* tag 'omap-cleanup-sparse-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: clean up some cppcheck warnings
ARM: OMAP1: board files: deduplicate and clean some NAND-related code
ARM: OMAP: USB: remove unnecessary sideways include
ARM: OMAP: DMA: use constant array maximum, drop some LCD DMA code
ARM: OMAP: OCM RAM: use memset_io() when clearing SRAM
ARM: OMAP: fix 'using plain integer as NULL pointer' sparse warnings
ARM: OMAP2+: GPMC: resolve type-conversion warning from sparse
ARM: OMAP1: OHCI: use platform_data fn ptr to enable OCPI bus
ARM: OMAP1: OCPI: move to mach-omap1/
ARM: OMAP: add includes for missing prototypes
ARM: OMAP2+: declare file-local functions as static
Signed-off-by: Olof Johansson <olof@lixom.net>
Implement a custom reset function for the HDQ1W IP block. This is
because the HDQ1W IP block, like I2C, has an internal clock gating bit
that needs to be toggled after setting the SOFTRESET bit to allow the
reset to propagate.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Avinash.H.M <avinashhm@ti.com>
Tested-by: NeilBrown <neilb@suse.de>
Add MMC for 2420 so we can pass the DMA request lines the same
way as we already do on omap2430 and later.
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
[paul@pwsan.com: updated to apply on top of the 3.5 hwmod cleanup;
changed mmc hwmod name/class to "msdi" as documented in the 2420 TRM Rev X;
added sysconfig register information; added 16 bit register width flag;
added MSDI custom reset code]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
powerdomain, PRM, and CM changes.
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Merge tag 'omap-devel-b-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-prcm
Some OMAP PRCM updates for 3.5. Includes some clock, clockdomain,
powerdomain, PRM, and CM changes.
The system dma module has capabiities register indicating
the support for descriptor loading, constant fill, etc.
Use this instead of OMAP revision check to identify the features
supported runtime.
This avoids patching the code for feature SOCs which has
those capabilities.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
cpu_class_is_omap2() contains all OMAP2+ devices. So update the DMA code
cpu checks accordingly so that there is no need to patch
the file for any future OMAP2+ devices.
In long run, all these attributes should come from hwmod dev_attr based
on DMA IP version.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
We do not use iclk anywhere in the dmtimer driver and so removing it.
Hence removing the timer iclk entries from OMAP4 clkdev table as well.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
To improve the clarity of the code, replace the CK_3517 flag used in
the clock data with CK_AM35XX. The CK_3505 flag can also be
removed, since it is now unused.
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
At the moment, read_persistent_clock is implemented at the
platform level, which makes it impossible to compile these
platforms in a single kernel.
Implement these two functions at the architecture level, and
provide a thin registration interface for both read_boot_clock
and read_persistent_clock. The two affected platforms (OMAP and
Tegra) are converted at the same time.
Reported-by: Jeff Ohlstein <johlstei@codeaurora.org>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Using coherent DMA memory with the OMAP DMA engine results in
unpredictable behaviour due to memory ordering issues; as things stand,
there is no guarantee that data written to coherent DMA memory will be
visible to the DMA hardware.
This is because the OMAP dma_write() accessor contains no barriers,
necessary on ARMv6 and above. The effect of this can be seen in comments
in the OMAP serial driver, which incorrectly talks about cache flushing
for the coherent DMA stuff.
Rather than adding barriers to the accessors, add it in the DMA support
code just before we enable DMA, and just after we disable DMA. This
avoids having barriers for every DMA register access.
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
OMAP44xx family of SoCs. There still seem to be a few missing, such
as those for the MMU IP blocks, but this seems to cover the bulk of
the remainder.
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Merge tag 'omap-devel-a-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-hwmod
Add in most of the remaining hwmods (IP block descriptions) for the
OMAP44xx family of SoCs. There still seem to be a few missing, such
as those for the MMU IP blocks, but this seems to cover the bulk of
the remainder.
control code for OMAP SoCs. In particular, this series results in
a considerable diffstat savings by changing the way that IP block
interconnections are defined.
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Merge tag 'omap-cleanup-b-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into cleanup-hwmod
Clean up various aspects of the OMAP hwmod code, which is the IP block
control code for OMAP SoCs. In particular, this series results in
a considerable diffstat savings by changing the way that IP block
interconnections are defined.
Add the SL2 interface IP block and interconnect data. The SL2 is related
to the IVA-HD subsystem.
Add IP block and interconnect data for the C2C ("Chip-to-chip")
interconnect. This can provide a direct system interconnect link to
other devices stacked on the OMAP package.
Add the ELM IP block and interconnect data. The ELM can be used
to locate errors in NAND flash connected to the GPMC.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Benoît Cousson <b-cousson@ti.com>
Now that the data has been converted to use interface registration, we
can remove the (now unused) direct hwmod registration code.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Add support for direct IP block interconnect ("link") registration to
the hwmod code via a new function, omap_hwmod_register_links(). This
will replace direct registration of hwmods, and a subsequent patch
will remove omap_hwmod_register().
This change will allow a subsequent patch to remove the hwmod data
link arrays. This will reduce the size of the hwmod static data and
also make it easier to generate the data files. It will also make it
possible to share some of the struct omap_hwmod records across
multiple SoCs, since the link array pointers will be removed from the
struct omap_hwmod.
The downside is that boot time will increase. Minimizing boot time
was the reason why the link arrays were originally introduced.
Removing them will require extra computation during boot to allocate
memory and associate IP blocks with their interconnects. However,
since the current kernel development focus is on reducing the number
of lines in arch/arm/mach-omap2/, boot time impact is now seemingly
considered a lower priority.
This patch contains additional complexity to reduce the number of
memory allocations required for this change. This reduces the boot
time impact: total hwmod link registration time was ~ 2655
microseconds with a simple allocation strategy, but is now ~ 549
microseconds[1] with the approach taken by this patch.
1. Measured on a BeagleBoard 35xx @ 500MHz MPU/333 MHz CORE, average
of 7 samples. Total uncertainty is +/- 61 microseconds.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Extend the OCP_* register offsets in the struct
omap_hwmod_class_sysconfig to 32 bits. This is required to add the
OMAP4+ GPU hwmod, which uses OCP_* register offsets larger than 16
bits.
Another possible solution may be to simply add a single 16 bit offset
field in this structure, and to add code to factor that offset into
all OCP_* register accesses. This would save some memory, since
almost no modules need 32 bit offsets.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
One of the OMAP4 links was missing OCP_USER flags, since it was only
used by the DSP initiator, and we did not have an OCP_USER_DSP flag.
Future patches will switch the hwmod code and data to register
interfaces, rather than hwmods, and it will be mandatory for all
interfaces to have at least one user bit set. This patch resolves the
issue by adding OCP_USER_DSP and marking the DSP-IVA interface
appropriately.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
The timer integration code pokes around in hwmod data structures.
Those data structures are about to change. Define a function,
omap_hwmod_get_resource_byname(), for the timer integration code to
use instead.
The original patch has been changed to use struct resource by Tony's
request, although the caller of this function should not be a driver._
Platform drivers should get their data through the regular platform_*
functions; DT drivers through the appropriate of_* functions. This a
function is only for use by OMAP core code in arch/arm/*omap*.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Revert one softreset regression and few other minor fixes.
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Merge tag 'omap-fixes-for-v3.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fix regression for bad uart muxing and oops when PM is not set.
Revert one softreset regression and few other minor fixes.
* tag 'omap-fixes-for-v3.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP1: DMTIMER: fix broken timer clock source selection
ARM: OMAP: serial: Fix the ocp smart idlemode handling bug
ARM: OMAP2+: UART: Fix incorrect population of default uart pads
ARM: OMAP: sram: fix BUG in dpll code for !PM case
ARM: OMAP2/3: VENC hwmods: Remove OCPIF_SWSUP_IDLE flag from VENC slave interface
ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status"
ARM: OMAP2+: hwmod: add softreset delay field and OMAP4 data
ARM: OMAP1: mux: add missing include
Currently the errata is populated based on cpu checks this can
be removed and replaced with module version check of uart ip block.
MVR reg is provided within the uart reg map use the same
to populate the errata and thus now errata population and handling
can be managed within the driver itself.
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Reviewed-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/mach-omap1, arch/arm/mach-omap2, and arch/arm/plat-omap.
Fixes all but one sparse warning and most of the useful
cppcheck warnings (excepting the warnings generated by the
dmtimer integration code which is going up via 3.4-rc fixes)
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Merge tag 'omap-cleanup-a2-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into cleanup-sparse
Resolve static analysis warnings generated by files in
arch/arm/mach-omap1, arch/arm/mach-omap2, and arch/arm/plat-omap.
Fixes all but one sparse warning and most of the useful
cppcheck warnings (excepting the warnings generated by the
dmtimer integration code which is going up via 3.4-rc fixes)
Resolve some warnings identified by cppcheck in arch/arm/mach-omap2:
[arch/arm/mach-omap2/usb-tusb6010.c:129]: (style) Checking if unsigned variable 'tmp' is less than zero.
[arch/arm/mach-omap2/prm_common.c:241]: (error) Possible null pointer dereference: irq_setup - otherwise it is redundant to check if irq_setup is null at line 247
[arch/arm/mach-omap2/pm34xx.c:790]: (style) Variable 'per_clkdm' is assigned a value that is never used
[arch/arm/mach-omap2/pm34xx.c:790]: (style) Variable 'core_clkdm' is assigned a value that is never used
[arch/arm/mach-omap2/pm24xx.c:185]: (style) Variable 'only_idle' is assigned a value that is never used
[arch/arm/mach-omap2/mux.c:254]: (error) Possible null pointer dereference: mux
[arch/arm/mach-omap2/mux.c:258]: (error) Possible null pointer dereference: mux
[arch/arm/mach-omap2/gpmc-onenand.c:178]: (style) Variable 'tick_ns' is assigned a value that is never used
[arch/arm/mach-omap2/gpio.c:56]: (error) Possible null pointer dereference: pdata - otherwise it is redundant to check if pdata is null at line 57
[arch/arm/mach-omap2/devices.c:45]: (style) Variable 'l' is assigned a value that is never used
[arch/arm/mach-omap2/board-omap3evm.c:641] -> [arch/arm/mach-omap2/board-omap3evm.c:639]: (style) Found duplicate branches for if and else.
[arch/arm/mach-omap2/am35xx-emac.c:95]: (style) Variable 'regval' is assigned a value that is never used
[arch/arm/mach-omap2/devices.c:74]: (style) Variable 'l' is assigned a value that is never used
[arch/arm/mach-omap2/pm34xx.c:277]: (style) Variable 'per_prev_state' is assigned a value that is never used
[arch/arm/plat-omap/dmtimer.c:352]: (error) Possible null pointer dereference: timer - otherwise it is redundant to check if timer is null at line 354
[arch/arm/plat-omap/omap_device.c:478]: (style) Variable 'c' is assigned a value that is never used
[arch/arm/plat-omap/usb.c:42]: (style) Variable 'status' is assigned a value that is never used
[arch/arm/mach-omap1/clock.c:197]: (style) Variable 'dpll1_rate' is assigned a value that is never used
[arch/arm/mach-omap1/lcd_dma.c:60]: (style) struct or union member 'lcd_dma_info::size' is never used
[arch/arm/mach-omap1/pm.c:572]: (style) Variable 'entry' is assigned a value that is never used
Some of them are pretty good catches, such as gpio.c:56 and
usb-tusb6010.c:129.
Thanks to Jarkko Nikula for some comments on the sscanf() warnings.
It seems that the kernel sscanf() ignores the field width anyway for the
%d format, so those changes have been dropped from this second version.
Thanks to Daniel Marjamäki <daniel.marjamaki@gmail.com> for pointing
out that a variable was unnecessarily marked static in the
board-omap3evm.c change.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Charulatha Varadarajan <charu@ti.com>
Cc: Daniel Marjamäki <daniel.marjamaki@gmail.com>
Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: Charulatha Varadarajan <charu@ti.com> # for gpio.c
_omap3_sram_configure_core_dpll is called when SDRC is reprogrammed,
which is done regardless of CONFIG_PM setting, so we always need it's
setup code too. Without this, we hit a BUG() on OMAP3 when kernel is
built without CONFIG_PM:
Reprogramming SDRC clock to 332000000 Hz
------------[ cut here ]------------
kernel BUG at arch/arm/plat-omap/sram.c:342!
Internal error: Oops - BUG: 0 [#1] ARM
...
[<c001c694>] (omap3_configure_core_dpll+0x68/0x6c) from [<c001b2dc>] (omap3_core_dpll_m2_set_rate+0x1)
[<c001b2dc>] (omap3_core_dpll_m2_set_rate+0x138/0x1b0) from [<c001a478>] (omap2_clk_set_rate+0x14/0x2)
[<c001a478>] (omap2_clk_set_rate+0x14/0x20) from [<c001c9dc>] (clk_set_rate+0x54/0x74)
[<c001c9dc>] (clk_set_rate+0x54/0x74) from [<c022b9c8>] (omap_sdrc_init+0x70/0x90)
[<c022b9c8>] (omap_sdrc_init+0x70/0x90) from [<c022f178>] (omap3pandora_init+0x11c/0x164)
[<c022f178>] (omap3pandora_init+0x11c/0x164) from [<c022849c>] (customize_machine+0x20/0x28)
[<c022849c>] (customize_machine+0x20/0x28) from [<c0225810>] (do_one_initcall+0xa0/0x16c)
[<c0225810>] (do_one_initcall+0xa0/0x16c) from [<c02259e0>] (kernel_init+0x104/0x1ac)
[<c02259e0>] (kernel_init+0x104/0x1ac) from [<c0009cec>] (kernel_thread_exit+0x0/0x8)
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Now that we have OPP layer, and OMAP CPUfreq driver is using it, we no
longer need/use the clock framework code for filling up CPUfreq
tables. Remove it.
Removing this code also eliminates build errors when CPU_FREQ_TABLE
support is not enabled.
Thanks to Russell King for pointing out the parts I missed under
plat-omap in the original version and also pointing out the build
errors when CPUFREQ_TABLE support was not enabled.
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Remove the include of mach-omap2/common.h from plat-omap/usb.c. It
appears to be unneeded. Removing it also resolves the sparse warning:
arch/arm/plat-omap/../mach-omap2/common.h:183:12: warning: symbol 'omap_intc_of_init' was not declared. Should it be static?
Signed-off-by: Paul Walmsley <paul@pwsan.com>
gcc can apparently handle stack-allocated arrays that use a dynamic
variable as the array maximum. Rather than using a mutable quantity,
simply use a constant maximum possible size. To me, code clarity is
improved; and it also avoids the following sparse warnings:
arch/arm/plat-omap/dma.c:886:40: error: bad constant expression
arch/arm/plat-omap/dma.c:892:17: error: cannot size expression
arch/arm/plat-omap/dma.c:970:40: error: bad constant expression
arch/arm/plat-omap/dma.c:972:17: error: cannot size expression
Also drop some dead code from the OMAP1 LCD DMA code:
arch/arm/mach-omap1/lcd_dma.c:80:6: warning: symbol 'omap_set_lcd_dma_src_port' was not declared. Should it be static?
Signed-off-by: Paul Walmsley <paul@pwsan.com>
We currently treat the OCM RAM memory as memory that hangs off an
I/O bus, so use memset_io() to clear it rather than memset().
This also takes care of this sparse warning:
arch/arm/plat-omap/sram.c:199:9: warning: cast removes address space of expression
There is still one SRAM-related sparse warning, but it appears that
fixing it correctly will take some time and thought.
N.B., at some point, the OCM RAM IP block interface code should probably
be reimplemented as an MTD device or something similar under drivers/.
Signed-off-by: Paul Walmsley <paul@pwsan.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>
The OMAP1 OHCI driver needs to enable the OCPI IP block before it can
work. Previously, the driver was simply calling a symbol defined in
the OMAP platform code, but this is incorrect: drivers should be fully
decoupled from platform and architecture code.
So instead, modify the driver to call through a platform_data function
pointer instead. We skip any DT aspect, since OMAP1 is not scheduled
to be converted to DT in the near future.
This resolves the following sparse warning:
It also gets rid of a cpu_is_omap16xx() call in a driver.
In the long term, it probably makes sense to move the OCPI bus code to
somewhere under drivers/. This should avoid the whole platform_data/DT
issue with this function.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Move the OMAP1 OCPI "bus" code to arch/arm/mach-omap1, since it is
only used on OMAP1 devices. In the long term, it probably makes sense
to move the OCPI bus code to somewhere under drivers/.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.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>
Due to HW limitation, some IPs should not be accessed just after a
softreset. Since the current hwmod sequence is accessing the sysconfig
register just after the reset, it might lead to OCP bus error in
that case.
Add a new field in the sysconfig structure to specify a delay in usecs
needed after doing a softreset.
In the case of the ISS and FDIF modules, the L3 OCP port will be
disconnected upon a SW reset. That issue was confirmed with HW simulation
and an errata should be available soon. The HW recommendation to avoid
that is to wait for 100 OCP clk cycles, before accessing the IP.
Considering the worse case (OPP50), the L3 bus will run at 100 MHz,
so a 1 usec delay is needed. Add an x2 margin to be safe.
Acked-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
[paul@pwsan.com: dropped FDIF change for now since the hwmod data is not
yet upstream; the FDIF change will need to be added later once the FDIF
data is merged]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
early v3.4-rc series. Also contains an HSMMC integration refinement
of an earlier hardware bug workaround.
ARM: OMAP3: clock data: fill in some missing clockdomains
ARM: OMAP4: clock data: Force a DPLL clkdm/pwrdm ON before a relock
ARM: OMAP4: clock data: fix mult and div mask for USB_DPLL
ARM: OMAP2+: powerdomain: Wait for powerdomain transition in pwrdm_state_switch()
ARM: OMAP AM3517/3505: clock data: change EMAC clocks aliases
ARM: OMAP2+: hwmod: Fix wrong SYSC_TYPE1_XXX_MASK bit definitions
ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status
ARM: OMAP2+: hwmod: Restore sysc after a reset
ARM: OMAP: clock: fix race in disable all clocks
ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks
ARM: OMAP2+: omap_hwmod: Allow io_ring wakeup configuration for all modules
ARM: OMAP3xxx: clock data: fix DPLL4 CLKSEL masks
ARM: OMAP3xxx: HSMMC: avoid erratum workaround when transceiver is attached
ARM: OMAP44xx: clockdomain data: correct the emu_sys_clkdm CLKTRCTRL data
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Merge tag 'omap-fixes-a2-for-3.4rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes
From Paul Walmsley:
OMAP clock, powerdomain, clockdomain, and hwmod fixes intended for the
early v3.4-rc series. Also contains an HSMMC integration refinement
of an earlier hardware bug workaround.
* tag 'omap-fixes-a2-for-3.4rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
ARM: OMAP2+: hwmod: Fix wrong SYSC_TYPE1_XXX_MASK bit definitions
ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status
ARM: OMAP2+: hwmod: Restore sysc after a reset
ARM: OMAP2+: omap_hwmod: Allow io_ring wakeup configuration for all modules
ARM: OMAP3: clock data: fill in some missing clockdomains
ARM: OMAP4: clock data: Force a DPLL clkdm/pwrdm ON before a relock
ARM: OMAP4: clock data: fix mult and div mask for USB_DPLL
ARM: OMAP2+: powerdomain: Wait for powerdomain transition in pwrdm_state_switch()
ARM: OMAP AM3517/3505: clock data: change EMAC clocks aliases
ARM: OMAP: clock: fix race in disable all clocks
ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks
ARM: OMAP3xxx: clock data: fix DPLL4 CLKSEL masks
ARM: OMAP3xxx: HSMMC: avoid erratum workaround when transceiver is attached
ARM: OMAP44xx: clockdomain data: correct the emu_sys_clkdm CLKTRCTRL data
With commit c334bc1 (ARM: make mach/io.h include optional), PCMCIA was
broken. PCMCIA depends on __io() returning a valid i/o address, and most
ARM platforms require IO_SPACE_LIMIT be set to 0xffffffff for PCMCIA. This
needs a better fix with a fixed i/o address mapping, but for now we just
restore things to the previous behavior.
This fixes at91, omap1, pxa and sa11xx. pxa needs io.h if PCI is enabled,
but PCMCIA is not. sa11xx already has IO_SPACE_LIMIT set to 0xffffffff,
so it doesn't need an io.h.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Joachim Eastwood <joachim.eastwood@jotron.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Tested-by: Paul Parsons <lost.distance@yahoo.com> (pxa270)
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
In the SYSC_TYPE1_XXX_MASK configuration, SYSC_XXX_SHIFT macro
is used which is not defined anywhere in the kernel.
Until now the build was going through successfully, since it
is not being used anywhere in kernel.
This bug got introduced by the commit
358f0e630d ("OMAP3: hwmod: support
to specify the offset position of various SYSCONFIG register bits.")
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
clk_disable_unused is invoked when CONFIG_OMAP_RESET_CLOCKS=y.
Since clk_disable_unused is called as lateinitcall, there can
be more than a few workqueues executing off secondary CPU(s).
The current code does the following:
a) checks if clk is unused
b) holds lock
c) disables clk
d) unlocks
Between (a) and (b) being executed on CPU0, It is possible to
have a driver executing on CPU1 which could do a get_sync->clk_get
(and increase the use_count) of the clock which was just about
to be disabled by clk_disable_unused.
We ensure instead that the entire list traversal is protected by
the lock allowing for parent child clock traversal which could be
potentially be done by runtime operations to be safe as well.
Reported-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This is a first pass of some of the merge window fallout for ARM platforms.
Nothing controversial:
* A system.h fallout fix for OMAP
* PXA fixes for breakage caused by the regulator struct changes
* GPIO fixes for OMAP to properly deal with dynamic IRQ allocation
* A mismerge in our arm-soc tree of an lpc32xx change for networking
* A fix for USB setup on tegra
* An undo of __init annotation of display mux setup on OMAP that's needed
at runtime
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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:
"This is a first pass of some of the merge window fallout for ARM
platforms.
Nothing controversial:
- A system.h fallout fix for OMAP
- PXA fixes for breakage caused by the regulator struct changes
- GPIO fixes for OMAP to properly deal with dynamic IRQ allocation
- A mismerge in our arm-soc tree of an lpc32xx change for networking
- A fix for USB setup on tegra
- An undo of __init annotation of display mux setup on OMAP that's
needed at runtime"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: pxa: fix build issue on stargate2
ARM: pxa: fix build issue on cm-x300
ARM: pxa: fix build failure for regulator consumer in em-x270.c
ARM: LPC32xx: clock.c: Fix lpc-eth clock reference
ARM: OMAP: pm: fix compilation break
ARM: OMAP: Remove OMAP_GPIO_IRQ macro definition
drivers: input: Fix OMAP_GPIO_IRQ with gpio_to_irq() in ams_delta_serio_exit()
ARM: OMAP: boards: Fix OMAP_GPIO_IRQ usage with gpio_to_irq()
ARM: pxa: fix regulator related build fail in magician_defconfig
ARM: tegra: Fix device tree AUXDATA for USB/EHCI
ARM: OMAP2+: Remove __init from DSI mux functions
Rob Herring has done a sweeping change cleaning up all of the mach/io.h includes,
moving some of the oft-repeated macros to a common location and removing a bunch of
boiler plate. This is another step closer to a common zImage for multiple platforms.
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Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: cleanups of io includes" from Olof Johansson:
"Rob Herring has done a sweeping change cleaning up all of the
mach/io.h includes, moving some of the oft-repeated macros to a common
location and removing a bunch of boiler plate. This is another step
closer to a common zImage for multiple platforms."
Fix up various fairly trivial conflicts (<mach/io.h> removal vs changes
around it, tegra localtimer.o is *still* gone, yadda-yadda).
* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: tegra: Include assembler.h in sleep.S to fix build break
ARM: pxa: use common IOMEM definition
ARM: dma-mapping: convert ARCH_HAS_DMA_SET_COHERENT_MASK to kconfig symbol
ARM: __io abuse cleanup
ARM: create a common IOMEM definition
ARM: iop13xx: fix missing declaration of iop13xx_init_early
ARM: fix ioremap/iounmap for !CONFIG_MMU
ARM: kill off __mem_pci
ARM: remove bunch of now unused mach/io.h files
ARM: make mach/io.h include optional
ARM: clps711x: remove unneeded include of mach/io.h
ARM: dove: add explicit include of dove.h to addr-map.c
ARM: at91: add explicit include of hardware.h to uncompressor
ARM: ep93xx: clean-up mach/io.h
ARM: tegra: clean-up mach/io.h
ARM: orion5x: clean-up mach/io.h
ARM: davinci: remove unneeded mach/io.h include
[media] davinci: remove includes of mach/io.h
ARM: OMAP: Remove remaining includes for mach/io.h
ARM: msm: clean-up mach/io.h
...
From Tony Lindgren:
"This contains the updated gpio_to_irq patches from Tarun, and a trivial
build fix from Govindraj to #include <asm/system_misc.h> in pm.c.
The DSI mux patch is the same."
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: pm: fix compilation break
ARM: OMAP: Remove OMAP_GPIO_IRQ macro definition
drivers: input: Fix OMAP_GPIO_IRQ with gpio_to_irq() in ams_delta_serio_exit()
ARM: OMAP: boards: Fix OMAP_GPIO_IRQ usage with gpio_to_irq()
ARM: OMAP2+: Remove __init from DSI mux functions
Since all references to OMAP_GPIO_IRQ macro are replaced now
with gpio_to_irq(), this can be removed altogether.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
