This patch moves cpufreq driver of ARM based tegra platform to drivers/cpufreq.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The Tegra clock driver is initialized during the ARM machine descriptor's
.init_irq() hook. It can't be initialized earlier, since dynamic memory
usage is required. It can't be initialized later, since the .init_timer()
hook needs the clocks initialized. However, at this time, udelay()
doesn't work.
The Tegra clock initialization table may enable some PLLs. Enabling a PLL
may require usage of udelay(). Hence, this can't happen right when the
clock driver is initialized.
To solve this, separate the clock driver initialization from the clock
table processing, so they can execute at separate times.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
After the patch series for system suspending support, tegra_idle_lp2_last()
no longer uses its parameters cpu_on_time or cpu_off_time, so remove them.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Adding suspend to RAM support for Tegra platform. There are three suspend
mode for Tegra. The difference were below.
* LP2: CPU voltage off
* LP1: CPU voltage off, DRAM in self-refresh
* LP0: CPU + Core voltage off, DRAM in self-refresh
After this patch, the LP2 suspend mode will be supported.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The PMC mostly controls the entry and exit of the system from different
sleep modes. Different platform or system may have different configurations.
The power management configurations of PMC is represented as some properties.
The system needs to define the properties when the system supports deep sleep
mode (i.e. suspend).
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add the wake up handling for legacy irq controller, and using
IRQCHIP_MASK_ON_SUSPEND for wake irq handling.
Based on the work by:
Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The CPU power timer set up function was related to PMC register. Now moving
it to PMC driver. And it also help to clean up the PM related code later.
The timer was calculated based on the input clock of PMC. In this patch, we
also get the clock from DT.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
policy->cpus contains all online cpus that have single shared clock line. And
their frequencies are always updated together.
Many SMP system's cpufreq drivers take care of this in individual drivers but
the best place for this code is in cpufreq core.
This patch modifies cpufreq_notify_transition() to notify frequency change for
all cpus in policy->cpus and hence updates all users of this API.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This allows Tegra be included in a kernel build that supports multiple
SoCs at once, which is useful for distro kernels.
This change:
* Moves Tegra's Kconfig into its own directory, as seems typical for
multi-platform conversions.
* Stops selecting some ARM errata that are incompatible with multi-
platform. This requires that you use a bootloader that enables the
workaround!
* Deletes some headers and Makefile.boot that aren't needed now that we
support multi-platform.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This is required so that code such as Tegra's PCIe and clock drivers
can still access this header file once Tegra is converted to
multiplatform, and <mach/> no longer exists.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Don't treat it as an error if a partition is already in the same power
state when a user wants to power it on or off. This allows code to
proceed if no state change is required.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This function can be used by drivers to enable power to the hardware
blocks that they drive. Most of the drivers can be built as a module
and therefore require this function to be exported.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This patch changes the Tegra PM code to use the setup_mm_for_reboot
helper rather than call cpu_switch_mm directly. This keeps things like
TLB invalidation in one place.
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
All the calls to gic_secondary_init() pass 0 as the first argument.
Since this function is called on each CPU when starting, it can be done
in a platform-independent way via a CPU notifier registered by the GIC
code.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Tested-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Barry Song <baohua.song@csr.com>
Tegra only supports, and always enables, device tree. Remove all ifdefs
and runtime checks for DT support from the driver. Platform data is
therefore no longer required. Delete the header that defines it.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
USB_ULPI and USB_ULPI_VIEWPORT shouldn't really
be selected directly by anyone, but since Tegra
still needs some time before turning ulpi viewport
into a proper PHY driver, we need to keep the
selects in place.
This patch just fixes the conditional select
so that it will continue to build after merging
the latest PHY layer changes.
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add speedo-based process identification for Tegra114.
Based on the work by: Alex Frid <afrid@nvidia.com>
Signed-off-by: Danny Huang <dahuang@nvidia.com>
[swarren: added include of bug.h]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Expose Tegra chip ID and revision in /sys/devices/soc for user mode
usage
Signed-off-by: Danny Huang <dahuang@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The secondary CPU can be brought up by toggling the power in PMC. Then
the flow controller will release CPU to go by clearing the reset and
clamp signal automatically.
Based on the work by:
Bo Yan <byan@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Using the CPU power on function in PMC driver to bring up secondary CPUs,
because we are going to re-factor powergate driver to support generic
power domain. It will be removed later and added the generic power domain
support in PMC driver.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Adding the power on function for secondary CPUs in PMC driver, this can
help us to remove legacy powergate driver and add generic power domain
support later.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The Tegra kernel only support boot from DT now. Clean up the PMC driver
to support DT only, that includes:
* remove the ifdef of CONFIG_OF
* replace the static mapping of PMC addr to map from DT
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The PMC HW is not 100% compatible across all Tegra series. We need to
specify each of them in the DT match table.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
"tegra_boot_secondary()" has many condition branches for some Tegra
SoC generations in a single function so that it's not easy to compile
a kernel only for a single SoC if one wants with some reason, debug
purpose(?). This patch provides SoC specific version of
boot_secondary(), tegra{20,30}_boot_secondary(). This could allow
any combination of SoC to be built. Those boot_secondary functions can
be preparation when we ntroduce chip specific function pointers in the
future without having chip dependent branches around.
Also removed unused definition/prototpye.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
[josephl: remove the Tegra114 part of the original patch]
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This is the preparation to unify "board-dt-tegra{20,30,114}.c" to a
single file "tegra.c".
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Refactored tegra{20,30,114}_init_early() so that we have the unified
tegra_init_early().
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This fixes:
arch/arm/mach-tegra/board-harmony-pcie.c: In function ‘harmony_pcie_init’:
arch/arm/mach-tegra/board-harmony-pcie.c:65:18: warning: ignoring return
value of ‘regulator_enable’, declared with attribute
warn_unused_result [-Wunused-result]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The warm boot sequence of Tegra30 secondary CPUs should wait for the
power ready then removing the clamps.
This did not fix any known or unknown issue, but nice to have this fix.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Check a return value for tegra_powergate_remove_clamping().
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
There is no need to unlock MMIO access to the DBGLAR all the time. Doing
so may even cause problems if a SW bug causes writes to that MMIO region.
Cortex-A15 processors do not support the CP14 register write the code
currently uses to unlock the DBGLAR; the instruction throws an undefined
instruction exceptions. This prevents tegra_secondary_startup() from
executing on Tegra114, and hence prevents SMP.
Remove the code that unlocks this access.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Prior to this change, {save,restore}_cpu_arch_register() collaborated to
maintain the value of the CPU diagnostic register across power cycles.
This was required to maintain any CPU errata workaround enable bits in
that register. However, now that the Tegra reset vector code always
enables all required workarounds, there is no need to save and restore
the diagnostic register; it is always explicitly programmed in the
required manner.
Hence, remove the save/restore logic.
This has the advantage that the kernel always directly controls the value
of this register every boot, rather than relying on a bootloader or other
kernel code having previously written the correct value into it. This
makes CPU0 (which was previously saved/restored) and CPUn (which should
have been set up by the reset vector) be controlled in exactly the same
way, which is easier to debug/find/...
In particular, when converting Tegra to a multi-platform kernel, the CPU0
diagnostic register value initially comes from the bootloader. Most Tegra
bootloaders don't yet enable all required CPU bug workarounds. The
previous commit updates the kernel to do so on any CPU power cycle.
However, the save/restore code ends up over-writing the value with the
old bootloader-driven value instead of the now more-likely-to-be-correct
kernel value!
Even irrespective of multi-platform conversion, this change limits the
kernel's exposure to any WARs the bootloader didn't enable for CPU0: on
the very first LP2 transition (CPU power-saving which power-cycles the
CPU), the correct value will be enabled.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The CPU cores in Tegra contain some errata. Workarounds must be applied
for these every time a CPU boots. Implement those workarounds directly
in the Tegra-specific CPU reset vector.
Many of these workarounds duplicate code in the core ARM kernel.
However, the core ARM kernel cannot enable those workarounds when
building a multi-platform kernel, since they require writing to secure-
only registers, and a multi-platform kernel often does not run in secure
mode, and also cannot generically/architecturally detect whether it is
running in secure mode, and hence cannot either unconditionally or
conditionally apply these workarounds.
Instead, the workarounds must be applied in architecture-specific reset
code, which is able to have more direct knowledge of the secure/normal
state. On Tegra, we will be able to detect this using a non-architected
register in the future, although we currently assume the kernel runs only
in secure mode. Other SoCs may never run the kernel in secure mode, and
hence always rely on a secure monitor to enable the workarounds, and
hence never implement them in the kernel.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Fix clk_get_sys() error handling; IS_ERR() should be used rather than
IS_ERR_OR_NULL() to check for errors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
regulator_get() does not return NULL as an error value. Even when it
does return an error, the code as written falls out the error path
while returning zero (indicating no failure.) Fix this, and use the
more correct IS_ERR() macro to check for errors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This is a larger set of new functionality for the existing SoC families,
including:
* vt8500 gains support for new CPU cores, notably the Cortex-A9 based wm8850
* prima2 gains support for the "marco" SoC family, its SMP based cousin
* tegra gains support for the new Tegra4 (Tegra114) family
* socfpga now supports a newer version of the hardware including SMP
* i.mx31 and bcm2835 are now using DT probing for their clocks
* lots of updates for sh-mobile
* OMAP updates for clocks, power management and USB
* i.mx6q and tegra now support cpuidle
* kirkwood now supports PCIe hot plugging
* tegra clock support is updated
* tegra USB PHY probing gets implemented diffently
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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 a larger set of new functionality for the existing SoC
families, including:
- vt8500 gains support for new CPU cores, notably the Cortex-A9 based
wm8850
- prima2 gains support for the "marco" SoC family, its SMP based
cousin
- tegra gains support for the new Tegra4 (Tegra114) family
- socfpga now supports a newer version of the hardware including SMP
- i.mx31 and bcm2835 are now using DT probing for their clocks
- lots of updates for sh-mobile
- OMAP updates for clocks, power management and USB
- i.mx6q and tegra now support cpuidle
- kirkwood now supports PCIe hot plugging
- tegra clock support is updated
- tegra USB PHY probing gets implemented diffently"
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
ARM: prima2: remove duplicate v7_invalidate_l1
ARM: shmobile: r8a7779: Correct TMU clock support again
ARM: prima2: fix __init section for cpu hotplug
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
arm: socfpga: Add SMP support for actual socfpga harware
arm: Add v7_invalidate_l1 to cache-v7.S
arm: socfpga: Add entries to enable make dtbs socfpga
arm: socfpga: Add new device tree source for actual socfpga HW
ARM: tegra: sort Kconfig selects for Tegra114
ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
ARM: tegra: Fix build error for gic update
ARM: tegra: remove empty tegra_smp_init_cpus()
ARM: shmobile: Register ARM architected timer
ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
ARM: shmobile: r8a7779: Correct TMU clock support
ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
ARM: mxs: use apbx bus clock to drive the timers on timrotv2
...
A large number of cleanups, all over the platforms. This is dominated
largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
others moving code out of arch/arm into more appropriate subsystems.
The clocksource and irqchip drivers are now abstracted to the point
where platforms that are already cleaned up do not need to even specify
the driver they use, it can all get configured from the device tree
as we do for normal device drivers. The clocksource changes basically
touch every single platform in the process.
We further clean up the use of platform specific header files here,
with the goal of turning more of the platforms over to being
"multiplatform" enabled, which implies that they cannot expose
their headers to architecture independent code any more.
It is expected that no functional changes are part of the cleanup.
The overall reduction in total code lines is mostly the result of
removing broken and obsolete code.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann:
"A large number of cleanups, all over the platforms. This is dominated
largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
others moving code out of arch/arm into more appropriate subsystems.
The clocksource and irqchip drivers are now abstracted to the point
where platforms that are already cleaned up do not need to even
specify the driver they use, it can all get configured from the device
tree as we do for normal device drivers. The clocksource changes
basically touch every single platform in the process.
We further clean up the use of platform specific header files here,
with the goal of turning more of the platforms over to being
"multiplatform" enabled, which implies that they cannot expose their
headers to architecture independent code any more.
It is expected that no functional changes are part of the cleanup.
The overall reduction in total code lines is mostly the result of
removing broken and obsolete code."
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits)
ARM: mvebu: correct gated clock documentation
ARM: kirkwood: add missing include for nsa310
ARM: exynos: move exynos4210-combiner to drivers/irqchip
mfd: db8500-prcmu: update resource passing
drivers/db8500-cpufreq: delete dangling include
ARM: at91: remove NEOCORE 926 board
sunxi: Cleanup the reset code and add meaningful registers defines
ARM: S3C24XX: header mach/regs-mem.h local
ARM: S3C24XX: header mach/regs-power.h local
ARM: S3C24XX: header mach/regs-s3c2412-mem.h local
ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/
ARM: S3C24XX: transform s3c2443 subirqs into new structure
ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs
ARM: S3C24XX: move s3c2443 irq code to irq.c
ARM: S3C24XX: transform s3c2416 irqs into new structure
ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs
ARM: S3C24XX: move s3c2416 irq init to common irq code
ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property
ARM: S3C24XX: Move irq syscore-ops to irq-pm
clocksource: always define CLOCKSOURCE_OF_DECLARE
...
Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers all
over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
If you need me to provide a merged tree to handle these resolutions,
please let me know.
Other than those patches, there's not much here, some minor fixes and
updates.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg Kroah-Hartman:
"Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers
all over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
Other than those patches, there's not much here, some minor fixes and
updates"
Fix up trivial conflicts
* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
base: memory: fix soft/hard_offline_page permissions
drivercore: Fix ordering between deferred_probe and exiting initcalls
backlight: fix class_find_device() arguments
TTY: mark tty_get_device call with the proper const values
driver-core: constify data for class_find_device()
firmware: Ignore abort check when no user-helper is used
firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
firmware: Make user-mode helper optional
firmware: Refactoring for splitting user-mode helper code
Driver core: treat unregistered bus_types as having no devices
watchdog: Convert to devm_ioremap_resource()
thermal: Convert to devm_ioremap_resource()
spi: Convert to devm_ioremap_resource()
power: Convert to devm_ioremap_resource()
mtd: Convert to devm_ioremap_resource()
mmc: Convert to devm_ioremap_resource()
mfd: Convert to devm_ioremap_resource()
media: Convert to devm_ioremap_resource()
iommu: Convert to devm_ioremap_resource()
drm: Convert to devm_ioremap_resource()
...
From Dinh Nguyen, this is a series of patches introducing support for
socfpga hardware (Altera Cyclone5). It also includes a cleanup that
moves some of the ARMv7 cache maintenance functions to a common location,
since three other platforms aready implemented it separately.
* socfpga/hw:
arm: socfpga: Add SMP support for actual socfpga harware
arm: Add v7_invalidate_l1 to cache-v7.S
arm: socfpga: Add entries to enable make dtbs socfpga
arm: socfpga: Add new device tree source for actual socfpga HW
Trivial conflict in arch/arm/mach-tegra/headsmp.S.
Signed-off-by: Olof Johansson <olof@lixom.net>
mach-socfpga is another platform that needs to use
v7_invalidate_l1 to bringup additional cores. There was a comment that
the ideal place for v7_invalidate_l1 should be in arm/mm/cache-v7.S
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Pavel Machek <pavel@denx.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Olof Johansson <olof@lixom.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The Kconfig options selected by ARCH_TEGRA_*_SOC were recently sorted.
Update the newly added ARCH_TEGRA_114_SOC's select statements to match.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
CONFIG_ARCH_TEGRA_114_SOC doesn't currently enable gpiolib, which causes
numerous build problems building a Tegra kernel with only Tegra114
enabled, and not Tegra20 or Tegra30. Enable ARCH_REQUIRE_GPIOLIB to
solve this. However, all Tegra will use gpiolib, so select this option
from ARCH_TEGRA rather than each individual ARCH_TEGRA_*_SOC, to
prevent this problem for any future chips.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch fixes the build error when ARCH_TEGRA_114_SOC is enabled
and ARCH_TEGRA_3x_SOC is disabled.
This provides Tegra114 with its own tegra114_init_early() instead of
making use of tegra30_init_early() so that T114 build doesn't depend
on T3x anymore.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Based on two separate cleanup branches, it's now empty and can be removed.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Stephen Warren <swarren@wwwdotorg.org>
This pull request adds initial support for the Tegra114 SoC, which
integrates a quad-core ARM Cortex-A15 CPU. I'm proud to observe that we
posted the initial versions of these patches before the final official
announcement of this chip.
These patches are enough to boot with a UART-based console, support the
Dalmore and Pluto reference/evaluation boards, instantiate the GPIO and
pinctrl drivers, and enable a cpuidle state. As yet, no clocks or
storage devices are supported, but patches for those will follow shortly.
This pull request is based on (most of) the previous pull request with
tag tegra-for-3.9-soc-cpuidle, followed by a merge of the previous pull
request with tag tegra-for-3.9-scu-base-rework.
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Merge tag 'tegra-for-3.9-soc-t114' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From Stepen Warren:
ARM: tegra: add Tegra114 SoC support
This pull request adds initial support for the Tegra114 SoC, which
integrates a quad-core ARM Cortex-A15 CPU. I'm proud to observe that we
posted the initial versions of these patches before the final official
announcement of this chip.
These patches are enough to boot with a UART-based console, support the
Dalmore and Pluto reference/evaluation boards, instantiate the GPIO and
pinctrl drivers, and enable a cpuidle state. As yet, no clocks or
storage devices are supported, but patches for those will follow shortly.
This pull request is based on (most of) the previous pull request with
tag tegra-for-3.9-soc-cpuidle, followed by a merge of the previous pull
request with tag tegra-for-3.9-scu-base-rework.
* tag 'tegra-for-3.9-soc-t114' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (24 commits)
ARM: DT: tegra114: add pinmux DT entry
ARM: DT: tegra114: add GPIO DT entry
ARM: tegra114: select PINCTRL for Tegra114 SoC
ARM: tegra: add Tegra114 ARM_CPUIDLE_WFI_STATE support
ARM: tegra: Add SMMU entry to Tegra114 DT
ARM: tegra: add AHB entry to Tegra114 DT
ARM: tegra: Add initial support for Tegra114 SoC.
ARM: dt: tegra114: Add new board, Pluto
ARM: dt: tegra114: Add new board, Dalmore
ARM: dt: tegra114: Add new SoC base, Tegra114 SoC
ARM: tegra: fuse: Add chip ID Tegra114 0x35
ARM: OMAP: Make use of available scu_a9_get_base() interface
ARM: tegra: Skip scu_enable(scu_base) if not Cortex A9
ARM: Add API to detect SCU base address from CP15
ARM: tegra: Use DT /cpu node to detect number of CPU core
ARM: tegra: Add CPU nodes to Tegra30 device tree
ARM: tegra: Add CPU nodes to Tegra20 device tree
ARM: perf: simplify __hw_perf_event_init err handling
ARM: perf: remove unnecessary checks for idx < 0
ARM: perf: handle armpmu_register failing
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Remove/add conflict in arch/arm/mach-tegra/common.c resolved.
Remove/remove conflict in arch/arm/mach-tegra/platsmp.c. Leave the empty
stub function for now since removing it in the merge commit is confusing;
will be cleaned up in a separate commit. # # It looks like you may be
committing a merge. # If this is not correct, please remove the file #
.git/MERGE_HEAD # and try again.
This pull request implements a new "LP2" cpuidle state for Tegra20,
which makes use of the couple cpuidle feature.
It is based on (most of) the previous pull request, with tag
tegra-for-3.9-soc-usb.
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Merge tag 'tegra-for-3.9-soc-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From Stephen Warren:
ARM: tegra: cpuidle enhancements
This pull request implements a new "LP2" cpuidle state for Tegra20,
which makes use of the couple cpuidle feature.
It is based on (most of) the previous pull request, with tag
tegra-for-3.9-soc-usb.
* tag 'tegra-for-3.9-soc-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra20: cpuidle: apply coupled cpuidle for powered-down mode
ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exit
clk: tegra20: Implementing CPU low-power function for tegra_cpu_car_ops
ARM: tegra20: cpuidle: add powered-down state for secondary CPU
ARM: tegra: add pending SGI checking API
Signed-off-by: Olof Johansson <olof@lixom.net>
The Tegra USB driver has a number of issues:
1) The PHY driver isn't a true platform device, and doesn't implement
the standard USB PHY API.
2) struct device instance numbers were used to make decisions in the
driver, rather than being parameterized by DT or platform data.
This pull request solves issue (2), and lays the groundwork for solving
issue (1). The work on issue (1) involved introducing new DT nodes for
the USB PHYs, which in turn interacted with the Tegra common clock
framework changes, due to the move of clock lookups into device tree.
Hence, these USB driver changes are taken through the Tegra tree with
acks from USB maintainers.
This pull request is based on the previous pull request, with tag
tegra-for-3.9-soc-ccf.
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Merge tag 'tegra-for-3.9-soc-usb' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From Stephen Warren:
ARM: tegra: USB driver cleanup
The Tegra USB driver has a number of issues:
1) The PHY driver isn't a true platform device, and doesn't implement
the standard USB PHY API.
2) struct device instance numbers were used to make decisions in the
driver, rather than being parameterized by DT or platform data.
This pull request solves issue (2), and lays the groundwork for solving
issue (1). The work on issue (1) involved introducing new DT nodes for
the USB PHYs, which in turn interacted with the Tegra common clock
framework changes, due to the move of clock lookups into device tree.
Hence, these USB driver changes are taken through the Tegra tree with
acks from USB maintainers.
This pull request is based on the previous pull request, with tag
tegra-for-3.9-soc-ccf.
* tag 'tegra-for-3.9-soc-usb' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
usb: host: tegra: make use of PHY pointer of HCD
ARM: tegra: Add reset GPIO information to PHY DT node
usb: host: tegra: don't touch EMC clock
usb: add APIs to access host registers from Tegra PHY
USB: PHY: tegra: Get rid of instance number to differentiate PHY type
USB: PHY: tegra: get rid of instance number to differentiate legacy controller
ARM: tegra: add clocks properties to USB PHY nodes
ARM: tegra: add DT nodes for Tegra USB PHY
usb: phy: remove unused APIs from Tegra PHY.
usb: host: tegra: Resetting PORT0 based on information received via DT.
ARM: tegra: Add new DT property to USB node.
usb: phy: use kzalloc to allocate struct tegra_usb_phy
ARM: tegra: remove USB address related macros from iomap.h
Tegra already supports the common clock framework, but had issues:
1) The clock driver was located in arch/arm/mach-tegra/ rather than
drivers/clk/.
2) A single "Tegra clock" type was implemented, rather than separate
clock types for PLL, mux, divider, ... type in HW.
3) Clock lookups by device drivers were still driven by device name
and connection ID, rather than through device tree.
This pull request solves all three issues. This required some DT changes
to add clocks properties, and driver changes to request clocks more
"correctly". Finally, this rework allows all AUXDATA to be removed from
Tegra board files, and various duplicate clock lookup entries to be
removed from the driver.
This pull request is based on the previous pull request, with tag
tegra-for-3.9-cleanup.
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Merge tag 'tegra-for-3.9-soc-ccf' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From Stephen Warren:
ARM: tegra: Common Clock Framework rework
Tegra already supports the common clock framework, but had issues:
1) The clock driver was located in arch/arm/mach-tegra/ rather than
drivers/clk/.
2) A single "Tegra clock" type was implemented, rather than separate
clock types for PLL, mux, divider, ... type in HW.
3) Clock lookups by device drivers were still driven by device name
and connection ID, rather than through device tree.
This pull request solves all three issues. This required some DT changes
to add clocks properties, and driver changes to request clocks more
"correctly". Finally, this rework allows all AUXDATA to be removed from
Tegra board files, and various duplicate clock lookup entries to be
removed from the driver.
This pull request is based on the previous pull request, with tag
tegra-for-3.9-cleanup.
* tag 'tegra-for-3.9-soc-ccf' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (31 commits)
clk: tegra30: remove unused TEGRA_CLK_DUPLICATE()s
clk: tegra20: remove unused TEGRA_CLK_DUPLICATE()s
ARM: tegra30: remove auxdata
ARM: tegra20: remove auxdata
ASoC: tegra: remove auxdata
staging: nvec: remove use of clk_get_sys
ARM: tegra: paz00: add clock information to DT
ARM: tegra: add clock properties to Tegra30 DT
ARM: tegra: add clock properties to Tegra20 DT
spi: tegra: do not use clock name to get clock
ARM: tegra: remove legacy clock code
ARM: tegra: migrate to new clock code
clk: tegra: add clock support for Tegra30
clk: tegra: add clock support for Tegra20
clk: tegra: add Tegra specific clocks
ARM: tegra: define Tegra30 CAR binding
ARM: tegra: define Tegra20 CAR binding
ARM: tegra: move tegra_cpu_car.h to linux/clk/tegra.h
ARM: tegra: add function to read chipid
ARM: tegra: fix compile error when disable CPU_IDLE
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-tegra/board-dt-tegra20.c
arch/arm/mach-tegra/board-dt-tegra30.c
arch/arm/mach-tegra/common.c
arch/arm/mach-tegra/platsmp.c
drivers/clocksource/Makefile
This pull request contains various cleanup and minor changes to core
Tegra code:
* Tegra clocksource driver is moved to drivers/clocksource.
* Various typos, warning cleanup, statics cleanup, section mismatch
fixes, etc.
* Various small fixes/cleanups for CPU/hotplug/SMP code.
This pull request is based on a merge of v3.8-rc3 and at least part of
arm-soc's timer/cleanup branch.
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Merge tag 'tegra-for-3.9-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren:
ARM: tegra: cleanup
This pull request contains various cleanup and minor changes to core
Tegra code:
* Tegra clocksource driver is moved to drivers/clocksource.
* Various typos, warning cleanup, statics cleanup, section mismatch
fixes, etc.
* Various small fixes/cleanups for CPU/hotplug/SMP code.
This pull request is based on a merge of v3.8-rc3 and at least part of
arm-soc's timer/cleanup branch.
* tag 'tegra-for-3.9-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra: fix compile error when disable CPU_IDLE
ARM: tegra30: make the wait time of CPU power up to proportional to HZ
ARM: tegra: make device can run on UP
ARM: tegra: clean up the CPUINIT section
ARM: tegra: moving the clock gating procedure to tegra_cpu_kill
ARM: tegra: update the cache maintenance order for CPU shutdown
ARM: tegra30: fix power up sequence for boot_secondary
ARM: tegra: cpufreq: move clk_get/put out of function tegra_cpu_init/exit
ARM: tegra: fix Kconfig warnings when !SMP
ARM: tegra: Make variables static
clocksource: tegra: cosmetic: Fix error message
ARM: tegra: move timer.c to drivers/clocksource/
Signed-off-by: Olof Johansson <olof@lixom.net>
Trivial conflicts:
arch/arm/mach-tegra/board-dt-tegra20.c
arch/arm/mach-tegra/board-dt-tegra30.c
drivers/clocksource/Makefile
are unused on ARM architecure. Samsung has some code setting up wdog
in arch_decomp_wdog(). But since CONFIG_S3C_BOOT_WATCHDOG is defined
nowhere, it will not run. Otherwise, system can not boot at all when
wdog is set up but no one pats it.
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Merge tag 'cleanup-decompwdog-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup
From Shawn Guo:
The series cleans up ARCH_HAS_DECOMP_WDOG and arch_decomp_wdog which
are unused on ARM architecure. Samsung has some code setting up wdog
in arch_decomp_wdog(). But since CONFIG_S3C_BOOT_WATCHDOG is defined
nowhere, it will not run. Otherwise, system can not boot at all when
wdog is set up but no one pats it.
* tag 'cleanup-decompwdog-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: samsung: remove unused arch_decomp_wdog() code
ARM: remove unused arch_decomp_wdog()
ARM: decompress: remove unused ARCH_HAS_DECOMP_WDOG
Signed-off-by: Olof Johansson <olof@lixom.net>
policy->shared_type field was added only for SoCs with ACPI support:
commit 3b2d99429e
Author: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Date: Wed Dec 14 15:05:00 2005 -0500
P-state software coordination for ACPI core
http://bugzilla.kernel.org/show_bug.cgi?id=5737
Many non-ACPI systems are filling this field by mistake, which makes its usage
confusing. Lets clean it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
For multicore SoC's, with cores sharing clock line, we are required to set
policy->cpus and policy->related_cpus with mask of cpus.
With following patch, we need to set policy->cpus with mask of all possible cpus
and policy->related_cpus would be filled automatically by the cpufreq core.
commit 4948b355e90080cd5ec1e91189f65a01e4186ef2
Author: Viresh Kumar <viresh.kumar@linaro.org>
Date: Tue Jan 29 14:39:08 2013 +0000
cpufreq: Simplify cpufreq_add_dev()
Current Tegra driver fills only ->related_cpus and not ->cpus, which looks to be
incorrect. Lets fix it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Select PINCTRL and PINCTRL_TEGRA114 for enabling Tegra114 pincontrol
driver for Tegra114 SoC.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Adding the generic ARM_CPUIDLE_WFI_STATE support for Tegra114.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The "powered-down" cpuidle mode of Tegra20 needs the CPU0 be the last one
core to go into this mode before other core. The coupled cpuidle framework
can help to sync the MPCore to coupled state then go into "powered-down"
idle mode together. The driver can just assume the MPCore come into
"powered-down" mode at the same time. No need to take care if the CPU_0
goes into this mode along and only can put it into safe idle mode (WFI).
The powered-down state of Tegra20 requires power gating both CPU cores.
When the secondary CPU requests to enter powered-down state, it saves
its own contexts and then enters WFI for waiting CPU0 in the same state.
When the CPU0 requests powered-down state, it attempts to put the secondary
CPU into reset to prevent it from waking up. Then power down both CPUs
together and power off the cpu rail.
Be aware of that, you may see the legacy power state "LP2" in the code
which is exactly the same meaning of "CPU power down".
Based on the work by:
Colin Cross <ccross@android.com>
Gary King <gking@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The flow controller can help CPU to go into suspend mode (powered-down
state). When CPU go into powered-down state, it needs some careful
settings before getting into and after leaving. The enter and exit
functions do that by configuring appropriate mode for flow controller.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The powered-down state of Tegra20 requires power gating both CPU cores.
When the secondary CPU requests to enter powered-down state, it saves
its own contexts and then enters WFI. The Tegra20 had a limition to
power down both CPU cores. The secondary CPU must waits for CPU0 in
powered-down state too. If the secondary CPU be woken up before CPU0
entering powered-down state, then it needs to restore its CPU states
and waits for next chance.
Be aware of that, you may see the legacy power state "LP2" in the code
which is exactly the same meaning of "CPU power down".
Based on the work by:
Colin Cross <ccross@android.com>
Gary King <gking@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The "powered-down" CPU idle mode of Tegra cut off the vdd_cpu rail, it
include the power of GIC. That caused the SGI (Software Generated
Interrupt) been lost. Because the SGI can't wake up the CPU that in
the "powered-down" CPU idle mode. We need to check if there is any
pending SGI when go into "powered-down" CPU idle mode. This is important
especially when applying the coupled cpuidle framework into "power-down"
cpuidle dirver. Because the coupled cpuidle framework may have the
chance that misses IPI_SINGLE_FUNC handling sometimes.
For the PPI or SPI, something like the legacy peripheral interrupt. It
still can be maintained by Tegra legacy interrupt controller. If there
is any pending PPI or SPI when CPU in "powered-down" CPU idle mode. The
CPU can be woken up immediately. So we don't need to take care the same
situation for PPI or SPI.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
USB register base address and sizes defined in iomap.h
are not used in any files other than board-dt-tegra20.c.
Hence removed those defines from header file and using
the absolute values in board files.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Remove AUXDATA as clocks are initialized from device node.
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Remove AUXDATA as clock are initialized from device node.
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Migrate Tegra clock support to drivers/clk/tegra, this involves
moving:
1. definition of tegra_cpu_car_ops to clk.c
2. definition of reset functions to clk-peripheral.c
3. change parent of cpu clock.
4. Remove legacy clock initialization.
5. Initialize clocks using DT.
6. Remove all instance of mach/clk.h
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
[swarren: use to_clk_periph_gate().]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
tegra_cpu_car_ops struct is going to be accessed from drivers/clk/tegra.
Move the tegra_cpu_car_ops to include/linux/clk/tegra.h.
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add function to read chip id from APB MISC registers. This function
will also get called from clock driver to flush write operations on
apb bus.
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The "sleep.S" file has many functions that be shared by different module
currently. Not just for CPU idle driver. Make it build as default now.
Reported-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
[swarren: add sleep.o to separate line so each line only contains 1 file]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
It would rather to use the API of time_to_jiffies than a constant number
of jiffies for the wait time of CPU power up.
Based on the work by:
Sang-Hun Lee <sanlee@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The reset handler code is used for either UP or SMP. To make Tegra device
can compile for UP. It needs to be moved to another file that is not SMP
only. This is because the reset handler also be needed by CPU idle
"powered-down" mode. So we also need to put the reset handler init function
in non-SMP only and init them always.
And currently the implementation of the reset handler to know which CPU is
OK to bring up was identital with "cpu_present_mask". But the
"cpu_present_mask" did not initialize yet when the reset handler init
function was moved to init early function. We use the "cpu_possible_mask"
to replace "cpu_present_mask". Then it can work on both UP and SMP case.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
[swarren: dropped the move of v7_invalidate_l1() from one file to another,
to avoid conflicts with Pavel's cleanup of this function, adjust Makefile
so each line only contains 1 file.]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Skip scu_enable(scu_base) if CPU is not Cortex A9 with SCU.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
SCU based detection only works with Cortex-A9 MP and it doesn't
support ones with multiple clusters. The only way to detect number of
CPU core correctly is with DT /cpu node.
Tegra SoCs decided to use DT detection as the only way and to not use
SCU based detection at all. Even if DT /cpu node based detection
fails, it continues with a single core
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
There are some redundant codes in the CPUINIT section that was caused by
some codes not be organized well in "headsmp.S". Currently all the codes
in "headsmp.S" were put into CPUINIT section. But actually it doesn't
need to be loacted in CPUINIT section. There is no fuction access them
in CPUINIT section and we will relocate them to IRAM.
These codes also caused some unnecessary functions that access these
codes been put into CPUINIT section too. This patch clean it up and put
them into normal text section.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The tegra_cpu_die was be executed by the CPU itslf. So the clock gating
procedure won't be executed after the CPU hardware shutdown code. Moving
the clock gating procedure to tegra_cpu_kill that will be run by another
CPU after the CPU died.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Updating the cache maintenance order before CPU shutdown when doing CPU
hotplug.
The old order:
* clean L1 by flush_cache_all
* exit SMP
* CPU shutdown
Adapt to:
* disable L1 data cache by clear C bit
* clean L1 by v7_flush_dcache_louis
* exit SMP
* CPU shutdown
For CPU hotplug case, it's no need to do "flush_cache_all". And we should
disable L1 data cache before clean L1 data cache. Then leaving the SMP
coherency.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The power up sequence is different on the cold boot CPU and the CPU
that resumed from the hotplug. For the cold boot CPU, it was been power
gated as default. To power up the cold boot CPU, the power should be
un-gated by un toggling the power gate register manually.
For the CPU that resumed from the hotplug, after un-halted the CPU. The
flow controller will un-gate the power of the CPU. No need to manually
control, just wait the power be resumed and continue the power up
sequence after the CPU power is ready.
Based on the work by:
Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
tegra_cpu_init/exit will be called every time one cpu core is online or
offline. And all cpu cores share same clocks, redundant clk_get/put
wast time, so I move them out.
Signed-off-by: Richard Zhao <linuxzsc@gmail.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Fix:
warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_754327 which has unmet direct dependencies (CPU_V7 && SMP)
warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_742230 which has unmet direct dependencies (CPU_V7 && SMP)
by selecting options only if SMP.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
No need to be public. Checked with:
$ touch arch/arm/mach-tegra/*[ch] && make C=1
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Move arch/arm/mach-tegra/timer.c to drivers/clocksource/tegra20_timer.c
so that the code is co-located with other clocksource drivers, and to
reduce the size of the mach-tegra directory.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This creates irqchip initialization infrastructure from Thomas
Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips
and adapted to use the new infrastructure. All DT enabled platforms
using GIC and VIC are converted over to use the new irqchip_init.
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Merge tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux into next/cleanup
From Rob Herring:
Initial irqchip init infrastructure and GIC and VIC clean-ups
This creates irqchip initialization infrastructure from Thomas
Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips
and adapted to use the new infrastructure. All DT enabled platforms
using GIC and VIC are converted over to use the new irqchip_init.
* tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux:
irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h
ARM: picoxcell: use common irqchip_init function
ARM: spear: use common irqchip_init function
irqchip: Move ARM VIC to drivers/irqchip
ARM: samsung: remove unused tick.h
ARM: remove unneeded vic.h includes
ARM: remove mach .handle_irq for VIC users
ARM: VIC: set handle_arch_irq in VIC initialization
ARM: VIC: shrink down vic.h
irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h
ARM: use common irqchip_init for GIC init
irqchip: Move ARM GIC to drivers/irqchip
ARM: remove mach .handle_irq for GIC users
ARM: GIC: set handle_arch_irq in GIC initialization
ARM: GIC: remove direct use of gic_raise_softirq
ARM: GIC: remove assembly ifdefs from gic.h
ARM: mach-ux500: use SGI0 to wake up the other core
arm: add set_handle_irq() to register the parent IRQ controller handler function
irqchip: add basic infrastructure
irqchip: add to the directories part of the IRQ subsystem in MAINTAINERS
Fixed up massive merge conflicts with the timer cleanup due to adjacent changes:
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-bcm/board_bcm.c
arch/arm/mach-cns3xxx/cns3420vb.c
arch/arm/mach-ep93xx/adssphere.c
arch/arm/mach-ep93xx/edb93xx.c
arch/arm/mach-ep93xx/gesbc9312.c
arch/arm/mach-ep93xx/micro9.c
arch/arm/mach-ep93xx/simone.c
arch/arm/mach-ep93xx/snappercl15.c
arch/arm/mach-ep93xx/ts72xx.c
arch/arm/mach-ep93xx/vision_ep9307.c
arch/arm/mach-highbank/highbank.c
arch/arm/mach-imx/mach-imx6q.c
arch/arm/mach-msm/board-dt-8960.c
arch/arm/mach-netx/nxdb500.c
arch/arm/mach-netx/nxdkn.c
arch/arm/mach-netx/nxeb500hmi.c
arch/arm/mach-nomadik/board-nhk8815.c
arch/arm/mach-picoxcell/common.c
arch/arm/mach-realview/realview_eb.c
arch/arm/mach-realview/realview_pb1176.c
arch/arm/mach-realview/realview_pb11mp.c
arch/arm/mach-realview/realview_pba8.c
arch/arm/mach-realview/realview_pbx.c
arch/arm/mach-socfpga/socfpga.c
arch/arm/mach-spear13xx/spear1310.c
arch/arm/mach-spear13xx/spear1340.c
arch/arm/mach-spear13xx/spear13xx.c
arch/arm/mach-spear3xx/spear300.c
arch/arm/mach-spear3xx/spear310.c
arch/arm/mach-spear3xx/spear320.c
arch/arm/mach-spear3xx/spear3xx.c
arch/arm/mach-spear6xx/spear6xx.c
arch/arm/mach-tegra/board-dt-tegra20.c
arch/arm/mach-tegra/board-dt-tegra30.c
arch/arm/mach-u300/core.c
arch/arm/mach-ux500/board-mop500.c
arch/arm/mach-ux500/cpu-db8500.c
arch/arm/mach-versatile/versatile_ab.c
arch/arm/mach-versatile/versatile_dt.c
arch/arm/mach-versatile/versatile_pb.c
arch/arm/mach-vexpress/v2m.c
include/asm-generic/vmlinux.lds.h
Clockevent cleanup series from Shawn Guo.
Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.
* clocksource/cleanup:
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
+ sync to Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-pxa/time.c
The clockevent core is able to figure out the best mult and shift,
calculate min_delta_ns and max_delta_ns, with the necessary info passed
into clockevents_config_and_register(). Use this combined configure
and register function where possible to make the codes less error prone
and gain some positive diff stat.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Tested-by: Roland Stigge <stigge@antcom.de>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: David Brown <davidb@codeaurora.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Barry Song <baohua.song@csr.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Now that we have GIC moved to drivers/irqchip and all GIC DT init for
platforms using irqchip_init, move gic.h and update the remaining
includes.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Convert all GIC DT initialization over to use common irqchip_init
function.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Now that the GIC initialization sets up the handle_arch_irq pointer, we
can remove it for all machines and make it static.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
With ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c,
all the arch_decomp_wdog() definition at platform level is unneeded.
Remmove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Jason Cooper <jason@lakedaemon.net>
In preparation of moving gic code to drivers/irqchip, remove the direct
platform dependencies on gic_raise_softirq. Move the setup of
smp_cross_call into the gic code and use arch_send_wakeup_ipi_mask
function to trigger wake-up IPIs.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.
This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html
Includes mach-omap2 fixes from Igor Grinberg.
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
ARM: tegra: fixes for 3.8
This branch contains a few miscellaneous fixes that have shown up in the
last few weeks.
By Sivaram Nair (2) and Hiroshi Doyu (1)
via Stephen Warren
* tag 'tegra-for-3.8-fixes-for-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
amba: tegra-ahb: Fix warning w/o PM_SLEEP
ARM: tegra: fix comment in dsib clk set_parent
ARM: tegra: select correct parent clk for pll_p
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull trivial branch from Jiri Kosina:
"Usual stuff -- comment/printk typo fixes, documentation updates, dead
code elimination."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
HOWTO: fix double words typo
x86 mtrr: fix comment typo in mtrr_bp_init
propagate name change to comments in kernel source
doc: Update the name of profiling based on sysfs
treewide: Fix typos in various drivers
treewide: Fix typos in various Kconfig
wireless: mwifiex: Fix typo in wireless/mwifiex driver
messages: i2o: Fix typo in messages/i2o
scripts/kernel-doc: check that non-void fcts describe their return value
Kernel-doc: Convention: Use a "Return" section to describe return values
radeon: Fix typo and copy/paste error in comments
doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
various: Fix spelling of "asynchronous" in comments.
Fix misspellings of "whether" in comments.
eisa: Fix spelling of "asynchronous".
various: Fix spelling of "registered" in comments.
doc: fix quite a few typos within Documentation
target: iscsi: fix comment typos in target/iscsi drivers
treewide: fix typo of "suport" in various comments and Kconfig
treewide: fix typo of "suppport" in various comments
...
Here are more patches in the progression towards multiplatform, sparse
irq conversions in particular.
Tegra has a handful of cleanups and general groundwork, but is
not quite there yet on full enablement.
Platforms that are enabled through this branch are VT8500 and Zynq. note
that i.MX was converted in one of the earlier cleanup branches as
well (before we started a separate topic for multiplatform). And both
new platforms for this merge window, sunxi and bcm, were merged with
multiplatform support enabled.
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Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform conversion patches from Olof Johansson:
"Here are more patches in the progression towards multiplatform, sparse
irq conversions in particular.
Tegra has a handful of cleanups and general groundwork, but is not
quite there yet on full enablement.
Platforms that are enabled through this branch are VT8500 and Zynq.
Note that i.MX was converted in one of the earlier cleanup branches as
well (before we started a separate topic for multiplatform). And both
new platforms for this merge window, sunxi and bcm, were merged with
multiplatform support enabled."
Fix up conflicts mostly as per Olof.
* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: zynq: Remove all unused mach headers
ARM: zynq: add support for ARCH_MULTIPLATFORM
ARM: zynq: make use of debug_ll_io_init()
ARM: zynq: remove TTC early mapping
ARM: tegra: move debug-macro.S to include/debug
ARM: tegra: don't include iomap.h from debug-macro.S
ARM: tegra: decouple uncompress.h and debug-macro.S
ARM: tegra: simplify DEBUG_LL UART selection options
ARM: tegra: select SPARSE_IRQ
ARM: tegra: enhance timer.c to get IO address from device tree
ARM: tegra: enhance timer.c to get IRQ info from device tree
ARM: timer: fix checkpatch warnings
ARM: tegra: add TWD to device tree
ARM: tegra: define DT bindings for and instantiate RTC
ARM: tegra: define DT bindings for and instantiate timer
clocksource/mtu-nomadik: use apb_pclk
clk: ux500: Register mtu apb_pclocks
ARM: plat-nomadik: convert platforms to SPARSE_IRQ
mfd/db8500-prcmu: use the irq_domain_add_simple()
mfd/ab8500-core: use irq_domain_add_simple()
...
Since the clk framework has already taken necessary locks before calling
into the arch clk ops code, no further locks are needed while setting
the parent of dsib clk. This patch removes a comment that indicated
otherwise, and yet did not take any locks.
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
For Tegra30, pll_p clk's parent is wrongly specified as clk_m instead of
pll_ref in the tegra30_clk_init_table and this is resulting in a
boot-time warning. This patch fixes this by correcting the clk init
table.
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Move Tegra's debug-macro.S over to the common debug macro directory.
Move Tegra's debug UART selection menu into ARM's Kconfig.debug, so that
all related options are selected in the same place.
Tegra's uncompress.h is left in mach-tegra/include/mach; it will be
removed whenever Tegra is converted to multi-platform.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
In order to move Tegra's debug-macro.S to a common location for single
zImage, it must not rely on any machine-specific header files such as
<mach/iomap.h>. Duplicate the few physical address definitions that
debug-macro.S relies upon directly into the file.
To avoid tegra_io_desc[] requiring shared knowledge of the UART
mapping's virtual address, use a virtual address outside the ranges
in tegra_io_desc[]. Call debug_ll_io_init() to propagate the mapping
beyond the early pages tables.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Prior to this change, Tegra's debug-macro.S relied on uncompress.h having
determined which UART to use, and whether it was safe to use the UART
(i.e. is it not in reset, and is clocked). This determination was
communicated from uncompress.h to debug-macro.S using a few bytes of
Tegra's IRAM (an on-SoC RAM). This had the disadvantage that uncompress.h
was a required part of the kernel boot process; booting a non-compressed
kernel would not allow earlyprintk to operate.
This change duplicates the UART selection and validation logic into
debug-macro.S so that the reliance on uncompress.h is removed.
This also helps out with single-zImage work, since there is currently no
support for using any uncompress.h with single-zImage.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Delete CONFIG_TEGRA_DEBUG_UART_AUTO_SCRATCH; it's not useful any more:
* No upstream bootloader currently or will ever support this option.
* CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA is a much more direct alternative.
Merge the fixed and automatic UART selection menus into a single choice
for simplicity; now you either pick AUTO_ODMDATA or a single fixed UART,
rather than potentially having an AUTO option override whatever fixed
option was chosen.
Remove TEGRA_DEBUG_UART_NONE; if you don't want a Tegra DEBUG_LL UART,
simply don't turn on DEBUG_LL. NONE used to be the default option, so
pick AUTO_ODMDATA as the new default.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
SPARSE_IRQ is required for single zImage support.
With this enabled, we can delete <mach/irqs.h>. This requires removing
one unnecessary include of that file, and hard-coding the PCIe IRQ into
the PCIe driver. This is a hack that will be dealt with as part of
converting the PCIe driver into a true DT-supporting driver.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Modify Tegra's timer code to parse the IO address from device tree,
hence removing the dependency on <mach/iomap.h>. This will allow the
driver to be moved to drivers/clocksource/.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Modify Tegra's timer code to parse the Tegra timer IRQ from device tree,
and to instantiate the TWD from device tree, rather than relying on hard-
coded values from <mach/irqs.h>.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The L2 RAM is in different power domain from the CPU cluster. So the
L2 content can be retained over CPU suspend/resume. To do that, we
need to disable L2 after the MMU is disabled, and enable L2 before
the MMU is enabled. But the L2 controller is in the same power domain
with the CPU cluster. We need to restore it's settings and re-enable
it after the power be resumed.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This is a power gating idle mode. It support power gating vdd_cpu rail
after all cpu cores in "powered-down" status. For Tegra30, the CPU0 can
enter this state only when all secondary CPU is offline. We need to take
care and make sure whole secondary CPUs were offline and checking the
CPU power gate status. After that, the CPU0 can go into "powered-down"
state safely. Then shut off the CPU rail.
Be aware of that, you may see the legacy power state "LP2" in the code
which is exactly the same meaning of "CPU power down".
Base on the work by:
Scott Williams <scwilliams@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The flow controller can help CPU to go into suspend mode (powered-down
state). When CPU go into powered-down state, it needs some careful
settings before getting into and after leaving. The enter and exit
functions do that by configuring appropriate mode for flow controller.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add suspend, resume and rail_off_ready API into tegra_cpu_car_ops. These
functions were used for CPU powered-down state maintenance. One thing
needs to notice the rail_off_ready API only availalbe for cpu_g cluster
not cpu_lp cluster.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Enable csite (debug and trace controller) clock at init to prevent it
be disabled. And this also the necessary clock for CPU be brought up or
resumed from a power-gating low power state.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This supports power-gated idle on secondary CPUs for Tegra30. The
secondary CPUs can go into powered-down state independently. When
CPU goes into this state, it saves it's contexts and puts itself
to flow controlled WFI state. After that, it will been power gated.
Be aware of that, you may see the legacy power state "LP2" in the
code which is exactly the same meaning of "CPU power down".
Based on the work by:
Scott Williams <scwilliams@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The CPU suspending on Tegra means CPU power gating. We add a resume
function for taking care the CPUs that resume from power gating status.
This function was been hooked to the reset handler. We take care
everything here before go into kernel.
Be aware of that, you may see the legacy power status "LP2" in the code
which is exactly the same meaning of "CPU power down".
Based on the work by:
Scott Williams <scwilliams@nvidia.com>
Colin Cross <ccross@android.com>
Gary King <gking@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The different Tegra chips may have different CPU idle states and data.
Individual CPU idle driver make it more easy to maintain.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
For the naming consistency under the mach-tegra, we re-name the file of
"sleep-tXX" to "sleep-tegraXX" (e.g., sleep-t30 to sleep-tegra30).
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The Tegra CPU idle LP3 state is doing ARM WFI only. So it's same with
the common ARM_CPUIDLE_WFI_STATE. Using it to replace LP3 now.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Setup the clock parents for the two display controllers and HDMI.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add the OF_DEV_AUXDATA table entries required to associate the proper
names with host1x and its children. In turn, this allows the devices to
find the required clocks.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Extend the pll_d frequency table with a few entries to support common
HDMI and LVDS display modes and setup the clock parents for the two
display controllers and HDMI.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add the OF_DEV_AUXDATA table entries required to associate the proper
names with host1x and its children. In turn, this allows the devices to
find the required clocks.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This patch adds speedo-based process identification support for Tegra30.
Signed-off-by: Danny Huang <dahuang@nvidia.com>
[swarren s/Tegra3/Tegra30/ in log print,
s/T30/Tegra30/ in commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Detect CPU and core process ID by checking speedo corner tables.
This can provide a more accurate process ID.
Signed-off-by: Danny Huang <dahuang@nvidia.com>
[swarren s/Tegra2/Tegra20/ in log print]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Change the spare fuse base from a definition to a variable.
It provides flexibilty to read spare fuse on different chip.
Signed-off-by: Danny Huang <dahuang@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This patch implements ARM linux patch 6395/1 for Tegra. See commit
1a8e41c "ARM: 6395/1: VExpress: Set bit 22 in the PL310 (cache
controller) AuxCtlr register" for details.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
[swarren: added commit subject for referenced patch]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add OF_DEV_AUXDATA for sflash controller driver for Tegra20
board dt files.
Set the parent clock of sflash controller to PLLP and configure
clock to 20MHz.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Enable the data prefetch on L2. The bit28 in aux ctrl register.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Add OF_DEV_AUXDATA for slink driver for Tegra20 and Tegra30
board dt files.
Set the parent clock of slink controller to PLLP and configure
clock to 100MHz.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Nothing outside mach-tegra uses this file, so there's no need for it to
be in <mach/>.
Since uncompress.h and debug-macro.S remain in include/mach, they need
to include "../../irammap.h" becaue of this change. Both these usages
will be removed shortly, when Tegra's DEBUG_LL implementation is updated
not to pass information through IRAM.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Nothing outside mach-tegra uses this file, so there's no need for it to
be in <mach/>.
Since uncompress.h and debug-macro.S remain in include/mach, they need
to include "../../iomap.h" becaue of this change. uncompress.h will soon
be deleted in later multi-platform/single-zImage patches. debug-macro.S
will need to continue to include this header using an explicit relative
path, to avoid duplicating the physical->virtual address mapping that
iomap.h dictates.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Remove includes of <mach/dma.h> from sound/soc; nothing from it is used.
Remove include of <mach/dma.h> from mach-tegra/apbio.c; since the DMA
transfers made by this file don't need flow-control with any peripheral,
there's no need to set any slave ID.
Once those changes are made, there are no remaining users of <mach/dma.h>
so remove it. Drivers should get this information from device tree. This
removal is necessary for single zImage.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
We wish to empty arch/arm/mach-tegra/include/mach/ as much as possible
to enable single zImage. Move tegra-ahb.h to a more central location
(suggested by Arnd, OK'd by Greg KH), and actually make tegra-ahb.c
include the header to ensure client and provider agree on the prototype.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This should make it easier to delete or move <mach/*.h>; something that
is useful for single-zImage.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This undoes commit 20f4665 "ARM: tegra: remove tegra_timer from
tegra_list_clks" by bringing back the tegra_timer clock. tegra_timer is
indeed a clock (hidden by the PERIPH_CLK macro) which should be added
to the tegra_list_clks.
The above commit caused tegra_init_timer() failing to get the clk
reference.
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
[swarren: added the reverted commit's subject to this patch description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The timer variable is renamed to avoid confusion and symbol name clash
with the tegra_timer clock.
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Change the type of variable from "unsigned long" to "u64".
This avoids the overflow while clock rate calculating.
Signed-off-by: Mark Zhang <markz@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
As suggested by Andrew Morton:
This is a pet peeve of mine. Any time there's a long list of items
(header file inclusions, kconfig entries, array initalisers, etc) and
someone wants to add a new item, they *always* go and stick it at the
end of the list.
Guys, don't do this. Either put the new item into a randomly-chosen
position or, probably better, alphanumerically sort the list.
lets sort all our select statements alphanumerically. This commit was
created by the following perl:
while (<>) {
while (/\\\s*$/) {
$_ .= <>;
}
undef %selects if /^\s*config\s+/;
if (/^\s+select\s+(\w+).*/) {
if (defined($selects{$1})) {
if ($selects{$1} eq $_) {
print STDERR "Warning: removing duplicated $1 entry\n";
} else {
print STDERR "Error: $1 differently selected\n".
"\tOld: $selects{$1}\n".
"\tNew: $_\n";
exit 1;
}
}
$selects{$1} = $_;
next;
}
if (%selects and (/^\s*$/ or /^\s+help/ or /^\s+---help---/ or
/^endif/ or /^endchoice/)) {
foreach $k (sort (keys %selects)) {
print "$selects{$k}";
}
undef %selects;
}
print;
}
if (%selects) {
foreach $k (sort (keys %selects)) {
print "$selects{$k}";
}
}
It found two duplicates:
Warning: removing duplicated S5P_SETUP_MIPIPHY entry
Warning: removing duplicated HARDIRQS_SW_RESEND entry
and they are identical duplicates, hence the shrinkage in the diffstat
of two lines.
We have four testers reporting success of this change (Tony, Stephen,
Linus and Sekhar.)
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
A series of fixes (and in some cases, some cleanups):
Via Tony Lindgren:
- A collection of OMAP regression fixes, in particular because firmware
no longer sets up all pin states before starting the kernel.
- cpufreq fixes for OMAP (Rafael is on vacation and this was pre-agreed).
- A longer series of misc regression fixes and cleanups, warning removals,
etc for OMAP
From Arnd Bergmann:
- A series of warning fixes for various platforms (defconfig builds)
Misc:
- A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A series of fixes (and in some cases, some cleanups):
Via Tony Lindgren:
- A collection of OMAP regression fixes, in particular because
firmware no longer sets up all pin states before starting the
kernel.
- cpufreq fixes for OMAP (Rafael is on vacation and this was
pre-agreed).
- A longer series of misc regression fixes and cleanups, warning
removals, etc for OMAP
From Arnd Bergmann:
- A series of warning fixes for various platforms (defconfig builds)
Misc:
- A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
ARM: pxa: armcore: fix PCI PIO warnings
ARM: integrator: use __iomem pointers for MMIO, part 2
ARM: assabet: fix bogus warning in get_assabet_scr (again)
ARM: shmobile: mark shmobile_init_late as __init
ARM: integrator_cp: fix build failure
ARM: OMAP4/AM335x: hwmod: fix disable_module regression in hardreset handling
ARM: OMAP3: fix workaround for EMU clockdomain
arm/omap: Replace board_ref_clock with enum values
ARM: OMAP2+: remove duplicated include from board-omap3stalker.c
arch/arm/plat-omap/omap-pm-noop.c: Remove unecessary semicolon
arch/arm/mach-omap2: Remove unecessary semicolon
arch/arm/mach-omap1/devices.c: Remove unecessary semicolon
ARM/dts: omap5-evm: pinmux configuration for audio
ARM/dts: Add pinctrl driver entries for omap5
ARM/dts: omap4-panda: pinmux configuration for audio
ARM/dts: omap4-sdp: pinmux configuration for audio
ARM/dts: omap5-evm: Disable unused McBSP3
ARM/dts: omap4-sdp: Disable unused McBSP3
ARM/dts: omap4-panda: Disable unused audio IPs
ARM: OMAP: board-omap4panda: Pin mux configuration for audio needs
...
This contains pretty many small commits covering fairly large range of
files in sound/ directory. Partly because of additional API support
and partly because of constantly developed ASoC and ARM stuff.
Some highlights:
- Introduced the helper function and documentation for exposing the
channel map via control API, as discussed in Plumbers; most of PCI
drivers are covered, will follow more drivers later
- Most of drivers have been replaced with the new PM callbacks (if
the bus is supported)
- HD-audio controller got the support of runtime PM and the support of
D3 clock-stop. Also changing the power_save option in sysfs kicks
off immediately to enable / disable the power-save mode.
- Another significant code change in HD-audio is the rewrite of
firmware loading code. Other than that, most of changes in HD-audio
are continued cleanups and standardization for the generic auto
parser and bug fixes (HBR, device-specific fixups), in addition to
the support of channel-map API.
- Addition of ASoC bindings for the compressed API, used by the
mid-x86 drivers.
- Lots of cleanups and API refreshes for ASoC codec drivers and
DaVinci.
- Conversion of OMAP to dmaengine.
- New machine driver for Wolfson Microelectronics Bells.
- New CODEC driver for Wolfson Microelectronics WM0010.
- Enhancements to the ux500 and wm2000 drivers
- A new driver for DA9055 and the support for regulator bypass mode.
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Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This contains pretty many small commits covering fairly large range of
files in sound/ directory. Partly because of additional API support
and partly because of constantly developed ASoC and ARM stuff.
Some highlights:
- Introduced the helper function and documentation for exposing the
channel map via control API, as discussed in Plumbers; most of PCI
drivers are covered, will follow more drivers later
- Most of drivers have been replaced with the new PM callbacks (if
the bus is supported)
- HD-audio controller got the support of runtime PM and the support
of D3 clock-stop. Also changing the power_save option in sysfs
kicks off immediately to enable / disable the power-save mode.
- Another significant code change in HD-audio is the rewrite of
firmware loading code. Other than that, most of changes in
HD-audio are continued cleanups and standardization for the generic
auto parser and bug fixes (HBR, device-specific fixups), in
addition to the support of channel-map API.
- Addition of ASoC bindings for the compressed API, used by the
mid-x86 drivers.
- Lots of cleanups and API refreshes for ASoC codec drivers and
DaVinci.
- Conversion of OMAP to dmaengine.
- New machine driver for Wolfson Microelectronics Bells.
- New CODEC driver for Wolfson Microelectronics WM0010.
- Enhancements to the ux500 and wm2000 drivers
- A new driver for DA9055 and the support for regulator bypass mode."
Fix up various arm soc header file reorg conflicts.
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (339 commits)
ALSA: hda - Add new codec ALC283 ALC290 support
ALSA: hda - avoid unneccesary indices on "Headphone Jack" controls
ALSA: hda - fix indices on boost volume on Conexant
ALSA: aloop - add locking to timer access
ALSA: hda - Fix hang caused by race during suspend.
sound: Remove unnecessary semicolon
ALSA: hda/realtek - Fix detection of ALC271X codec
ALSA: hda - Add inverted internal mic quirk for Lenovo IdeaPad U310
ALSA: hda - make Realtek/Sigmatel/Conexant use the generic unsol event
ALSA: hda - make a generic unsol event handler
ASoC: codecs: Add DA9055 codec driver
ASoC: eukrea-tlv320: Convert it to platform driver
ALSA: ASoC: add DT bindings for CS4271
ASoC: wm_hubs: Ensure volume updates are handled during class W startup
ASoC: wm5110: Adding missing volume update bits
ASoC: wm5110: Add OUT3R support
ASoC: wm5110: Add AEC loopback support
ASoC: wm5110: Rename EPOUT to HPOUT3
ASoC: arizona: Add more clock rates
ASoC: arizona: Add more DSP options for mixer input muxes
...
This time the IOMMU updates contain a bunch of fixes and cleanups to
various IOMMU drivers and the DMA debug code. New features are the
code for IRQ remapping support with the AMD IOMMU (preperation for that
was already merged in the last release) and a debugfs interface to
export some statistics in the NVidia Tegra IOMMU driver.
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Merge tag 'iommu-updates-v3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"This time the IOMMU updates contain a bunch of fixes and cleanups to
various IOMMU drivers and the DMA debug code. New features are the
code for IRQ remapping support with the AMD IOMMU (preperation for
that was already merged in the last release) and a debugfs interface
to export some statistics in the NVidia Tegra IOMMU driver."
* tag 'iommu-updates-v3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (27 commits)
iommu/amd: Remove obsolete comment line
dma-debug: Remove local BUS_NOTIFY_UNBOUND_DRIVER define
iommu/amd: Fix possible use after free in get_irq_table()
iommu/amd: Report irq remapping through IOMMU-API
iommu/amd: Print message to system log when irq remapping is enabled
iommu/irq: Use amd_iommu_irq_ops if supported
iommu/amd: Make sure irq remapping still works on dma init failure
iommu/amd: Add initialization routines for AMD interrupt remapping
iommu/amd: Add call-back routine for HPET MSI
iommu/amd: Implement MSI routines for interrupt remapping
iommu/amd: Add IOAPIC remapping routines
iommu/amd: Add routines to manage irq remapping tables
iommu/amd: Add IRTE invalidation routine
iommu/amd: Make sure IOMMU is not considered to translate itself
iommu/amd: Split device table initialization into irq and dma part
iommu/amd: Check if IOAPIC information is correct
iommu/amd: Allocate data structures to keep track of irq remapping tables
iommu/amd: Add slab-cache for irq remapping tables
iommu/amd: Keep track of HPET and IOAPIC device ids
iommu/amd: Fix features reporting
...
This is a series from Arnd that fixes a number of compiler warnings
when building defconfigs on ARM.
* late/fixes:
ARM: footbridge: nw_gpio_lock is raw_spin_lock
ARM: mv78xx0: correct addr_map_cfg __initdata annotation
ARM: footbridge: remove RTC_IRQ definition
ARM: soc: dependency warnings for errata
ARM: ks8695: __arch_virt_to_dma type handling
ARM: rpc: check device_register return code in ecard_probe
ARM: davinci: don't mark da850_register_cpufreq as __init
ARM: iop13xx: fix iq81340sc_atux_map_irq prototype
ARM: iop13xx: mark iop13xx_scan_bus as __devinit
ARM: mv78xx0: mark mv78xx0_timer_init as __init_refok
ARM: s3c24xx: fix multiple section mismatch warnings
ARM: at91: unused variable in at91_pm_verify_clocks
ARM: at91: skip at91_io_desc definition for NOMMU
ARM: pxa: work around duplicate definition of GPIO24_SSP1_SFRM
ARM: pxa: remove sharpsl_fatal_check function
ARM: pxa: define palmte2_pxa_keys conditionally
ARM: pxa: Wunused-result warning in viper board file
ARM: shark: fix shark_pci_init return code
Fixed trivial conflicts in arch/arm/mach-at91/setup.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
Since the complete conversion to device tree, there are no board-
specific Kconfig options left, so remove the useless Kconfig entry.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
The PL310_ERRATA_753970 and ARM_ERRATA_764369 symbols only make sense
when the base features for them are enabled, so select them
conditionally in Kconfig to avoid warnings like:
warning: (UX500_SOC_COMMON) selects PL310_ERRATA_753970 which has unmet direct dependencies (CACHE_PL310)
warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_COMMON) selects ARM_ERRATA_764369 which has unmet direct dependencies (CPU_V7 && SMP)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Pull input updates from Dmitry Torokhov:
"A few drivers were updated with device tree bindings and others got a
few small cleanups and fixes."
Fix trivial conflict in drivers/input/keyboard/omap-keypad.c due to
changes clashing with a whitespace cleanup.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits)
Input: wacom - mark Intuos5 pad as in-prox when touching buttons
Input: synaptics - adjust threshold for treating position values as negative
Input: hgpk - use %*ph to dump small buffer
Input: gpio_keys_polled - fix dt pdata->nbuttons
Input: Add KD[GS]KBDIACRUC ioctls to the compatible list
Input: omap-keypad - fixed formatting
Input: tegra - move platform data header
Input: wacom - add support for EMR on Cintiq 24HD touch
Input: s3c2410_ts - make s3c_ts_pmops const
Input: samsung-keypad - use of_get_child_count() helper
Input: samsung-keypad - use of_match_ptr()
Input: uinput - fix formatting
Input: uinput - specify exact bit sizes on userspace APIs
Input: uinput - mark failed submission requests as free
Input: uinput - fix race that can block nonblocking read
Input: uinput - return -EINVAL when read buffer size is too small
Input: uinput - take event lock when fetching events from buffer
Input: get rid of MATCH_BIT() macro
Input: rotary-encoder - add DT bindings
Input: rotary-encoder - constify platform data pointers
...
This is a pretty significant branch. It's the introduction of the
first multiplatform support on ARM, and with this (and the later
branch) merged, it is now possible to build one kernel that contains
support for highbank, vexpress, mvebu, socfpga, and picoxcell. More
platforms will be convered over in the next few releases.
Two critical last things had to be done for this to be practical and
possible:
* Today each platform has its own include directory under
mach-<mach>/include/mach/*, and traditionally that is where a lot of
driver/platform shared definitions have gone, such as platform data
structures. They now need to move out to a common location instead,
and this branch moves a large number of those out to
include/linux/platform_data.
* Each platform used to list the device trees to compile for its
boards in mach-<mach>/Makefile.boot.
Both of the above changes will mean that there are some merge
conflicts to come (and some to resolve here). It's a one-time move and
once it settles in, we should be good for quite a while. Sorry for the
overhead.
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Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc multiplatform enablement from Olof Johansson:
"This is a pretty significant branch. It's the introduction of the
first multiplatform support on ARM, and with this (and the later
branch) merged, it is now possible to build one kernel that contains
support for highbank, vexpress, mvebu, socfpga, and picoxcell. More
platforms will be convered over in the next few releases.
Two critical last things had to be done for this to be practical and
possible:
* Today each platform has its own include directory under
mach-<mach>/include/mach/*, and traditionally that is where a lot
of driver/platform shared definitions have gone, such as platform
data structures. They now need to move out to a common location
instead, and this branch moves a large number of those out to
include/linux/platform_data.
* Each platform used to list the device trees to compile for its
boards in mach-<mach>/Makefile.boot.
Both of the above changes will mean that there are some merge
conflicts to come (and some to resolve here). It's a one-time move
and once it settles in, we should be good for quite a while. Sorry
for the overhead."
Fix conflicts as per Olof.
* tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits)
ARM: add v7 multi-platform defconfig
ARM: msm: Move core.h contents into common.h
ARM: highbank: call highbank_pm_init from .init_machine
ARM: dtb: move all dtb targets to common Makefile
ARM: spear: move platform_data definitions
ARM: samsung: move platform_data definitions
ARM: orion: move platform_data definitions
ARM: vexpress: convert to multi-platform
ARM: initial multiplatform support
ARM: mvebu: move armada-370-xp.h in mach dir
ARM: vexpress: remove dependency on mach/* headers
ARM: picoxcell: remove dependency on mach/* headers
ARM: move all dtb targets out of Makefile.boot
ARM: picoxcell: move debug macros to include/debug
ARM: socfpga: move debug macros to include/debug
ARM: mvebu: move debug macros to include/debug
ARM: vexpress: move debug macros to include/debug
ARM: highbank: move debug macros to include/debug
ARM: move debug macros to common location
ARM: make mach/gpio.h headers optional
...
- A long-coming conversion of various platforms to a common LED
infrastructure
- AT91 is moved over to use the newer MCI driver for MMC
- Pincontrol conversions for samsung platforms
- DT bindings for gscaler on samsung
- i2c driver fixes for tegra, acked by i2c maintainer
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Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc driver specific changes from Olof Johansson:
- A long-coming conversion of various platforms to a common LED
infrastructure
- AT91 is moved over to use the newer MCI driver for MMC
- Pincontrol conversions for samsung platforms
- DT bindings for gscaler on samsung
- i2c driver fixes for tegra, acked by i2c maintainer
Fix up conflicts as per Olof.
* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: bus: omap_l3: use resources instead of hardcoded irqs
pinctrl: exynos: Fix wakeup IRQ domain registration check
pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data
pinctrl: exynos: Correct the detection of wakeup-eint node
pinctrl: exynos: Mark exynos_irq_demux_eint as inline
pinctrl: exynos: Handle only unmasked wakeup interrupts
pinctrl: exynos: Fix typos in gpio/wkup _irq_mask
pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa
drivers: bus: Move the OMAP interconnect driver to drivers/bus/
i2c: tegra: dynamically control fast clk
i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20
ARM: tegra: clock: remove unused clock entry for i2c
ARM: tegra: clock: add connection name in i2c clock entry
i2c: tegra: pass proper name for getting clock
ARM: tegra: clock: add i2c fast clock entry in clock table
ARM: EXYNOS: Adds G-Scaler device from Device Tree
ARM: EXYNOS: Add clock support for G-Scaler
ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform
ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC
ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used
...
A shorter cleanup branch submitted separately due to dependencies with
some of the previous topics.
Major thing here is that the Broadcom bcmring platform is removed. It's an
SoC that's used on some stationary VoIP platforms, and is in desperate
need of some cleanup. Broadcom came back and suggested that we just
deprecate the platform for now, since they aren't going to spend the
resources needed on cleaning it up, and there are no users of the platform
directly from mainline.
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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:
"A shorter cleanup branch submitted separately due to dependencies with
some of the previous topics.
Major thing here is that the Broadcom bcmring platform is removed.
It's an SoC that's used on some stationary VoIP platforms, and is in
desperate need of some cleanup. Broadcom came back and suggested that
we just deprecate the platform for now, since they aren't going to
spend the resources needed on cleaning it up, and there are no users
of the platform directly from mainline."
Fix some conflicts due to BCM2835 getting added next to the removed
BCMRING, and removal of tegra files that had been converted to
devicetree.
* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: Orion5x: ts78xx: Add IOMEM for virtual addresses.
ARM: ux500: use __iomem pointers for MMIO
ARM: Remove mach-bcmring
ARM: clps711x: Remove board support for CEIVA
ARM: clps711x: Fix register definitions
ARM: clps711x: Fix lowlevel debug-macro
ARM: clps711x: Added simple clock framework
pinctrl: tegra: move pinconf-tegra.h content into drivers/pinctrl
ARM: tegra: delete unused headers
ARM: tegra: remove useless includes of <mach/*.h>
ARM: tegra: remove dead code
Device tree conversion and enablement branch. Mostly a bunch of new
bindings and setup for various platforms, but the Via/Winchip VT8500
platform is also converted over from being 100% legacy to now use
device tree for probing. More of that will come for 3.8.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc device tree updates from Olof Johansson:
"Device tree conversion and enablement branch. Mostly a bunch of new
bindings and setup for various platforms, but the Via/Winchip VT8500
platform is also converted over from being 100% legacy to now use
device tree for probing. More of that will come for 3.8."
Trivial conflicts due to removal of vt8500 files, and one documentation
file that was added with slightly different contents both here and in
the USb tree.
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (212 commits)
arm: vt8500: Fixup for missing gpio.h
ARM: LPC32xx: LED fix in PHY3250 DTS file
ARM: dt: mmp-dma: add binding file
arm: vt8500: Update arch-vt8500 to devicetree support.
arm: vt8500: gpio: Devicetree support for arch-vt8500
arm: vt8500: doc: Add device tree bindings for arch-vt8500 devices
arm: vt8500: clk: Add Common Clock Framework support
video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb
serial: vt8500: Add devicetree support for vt8500-serial
rtc: vt8500: Add devicetree support for vt8500-rtc
arm: vt8500: Add device tree files for VIA/Wondermedia SoC's
ARM: tegra: Add Avionic Design Tamonten Evaluation Carrier support
ARM: tegra: Add Avionic Design Medcom-Wide support
ARM: tegra: Add Avionic Design Plutux support
ARM: tegra: Add Avionic Design Tamonten support
ARM: tegra: dts: Add pwm label
ARM: ux500: Fix SSP register address format
ARM: ux500: Apply tc3589x's GPIO/IRQ properties to HREF's DT
ARM: ux500: Remove redundant #gpio-cell properties from Snowball DT
ARM: ux500: Add all encompassing sound node to the HREF Device Tree
...
Most notable here is probably the addition of basic support for the
BCM2835, an SoC used in some of the Roku 2 players as well as the
much-hyped Raspberry Pi, cleaned up and contributed by Stephen
Warren. It's still early days on mainline support, with just the
basics working. But it has to start somewhere!
Beyond that there's some conversions of clock infrastructure on tegra
to common clock, misc updates for several other platforms, and OMAP
now has its own bus (under drivers/bus) to manage its devices through.
This branch adds two new directories outside of arch/arm:
drivers/irqchip for new irq controllers, and drivers/bus for the above
OMAP bus. It's expected that some of the other platforms will migrate
parts of their platforms to those directories over time as well.
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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 Olof Johansson:
"Most notable here is probably the addition of basic support for the
BCM2835, an SoC used in some of the Roku 2 players as well as the
much-hyped Raspberry Pi, cleaned up and contributed by Stephen Warren.
It's still early days on mainline support, with just the basics
working. But it has to start somewhere!
Beyond that there's some conversions of clock infrastructure on tegra
to common clock, misc updates for several other platforms, and OMAP
now has its own bus (under drivers/bus) to manage its devices through.
This branch adds two new directories outside of arch/arm:
drivers/irqchip for new irq controllers, and drivers/bus for the above
OMAP bus. It's expected that some of the other platforms will migrate
parts of their platforms to those directories over time as well."
Fix up trivial conflicts with the clk infrastructure changes.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (62 commits)
ARM: shmobile: add new __iomem annotation for new code
ARM: LPC32xx: Support GPI 28
ARM: LPC32xx: Platform update for devicetree completion of spi-pl022
ARM: LPC32xx: Board cleanup
irqchip: fill in empty Kconfig
ARM: SAMSUNG: Add check for NULL in clock interface
ARM: EXYNOS: Put PCM, Slimbus, Spdif clocks to off state
ARM: EXYNOS: Add bus clock for FIMD
ARM: SAMSUNG: Fix HDMI related warnings
ARM: S3C24XX: Add .get_rate callback for "camif-upll" clock
ARM: EXYNOS: Fix incorrect help text
ARM: EXYNOS: Turn off clocks for NAND, OneNAND and TSI controllers
ARM: OMAP: AM33xx hwmod: fixup SPI after platform_data move
MAINTAINERS: add an entry for the BCM2835 ARM sub-architecture
ARM: bcm2835: instantiate console UART
ARM: bcm2835: add stub clock driver
ARM: bcm2835: add system timer
ARM: bcm2835: add interrupt controller driver
ARM: add infra-structure for BCM2835 and Raspberry Pi
ARM: tegra20: add CPU hotplug support
...
This is a large branch that contains a handful of different cleanups:
- Fixing up the I/O space remapping on PCI on ARM. This is a series
from Rob Herring that restructures how all pci devices allocate I/O
space, and it's part of the work to allow multiplatform kernels.
- A number of cleanup series for OMAP, moving and removing some
headers, sparse irq rework and in general preparation for
multiplatform.
- Final removal of all non-DT boards for Tegra, it is now
device-tree-only!
- Removal of a stale platform, nxp4008. It's an old mobile chipset
that is no longer in use, and was very likely never really used with
a mainline kernel. We have not been able to find anyone interested
in keeping it around in the kernel.
- Removal of the legacy dmaengine driver on tegra
+ A handful of other things that I haven't described above.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc general cleanups from Olof Johansson:
"This is a large branch that contains a handful of different cleanups:
- Fixing up the I/O space remapping on PCI on ARM. This is a series
from Rob Herring that restructures how all pci devices allocate I/O
space, and it's part of the work to allow multiplatform kernels.
- A number of cleanup series for OMAP, moving and removing some
headers, sparse irq rework and in general preparation for
multiplatform.
- Final removal of all non-DT boards for Tegra, it is now
device-tree-only!
- Removal of a stale platform, nxp4008. It's an old mobile chipset
that is no longer in use, and was very likely never really used
with a mainline kernel. We have not been able to find anyone
interested in keeping it around in the kernel.
- Removal of the legacy dmaengine driver on tegra
+ A handful of other things that I haven't described above."
Fix up some conflicts with the staging tree (and because nxp4008 was
removed)
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits)
ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6
ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
ARM: mmp: using for_each_set_bit to simplify the code
ARM: tegra: harmony: fix ldo7 regulator-name
ARM: OMAP2+: Make omap4-keypad.h local
ARM: OMAP2+: Make l4_3xxx.h local
ARM: OMAP2+: Make l4_2xxx.h local
ARM: OMAP2+: Make l3_3xxx.h local
ARM: OMAP2+: Make l3_2xxx.h local
ARM: OMAP1: Move irda.h from plat to mach
ARM: OMAP2+: Make hdq1w.h local
ARM: OMAP2+: Make gpmc-smsc911x.h local
ARM: OMAP2+: Make gpmc-smc91x.h local
ARM: OMAP1: Move flash.h from plat to mach
ARM: OMAP2+: Make debug-devices.h local
ARM: OMAP1: Move board-voiceblue.h from plat to mach
ARM: OMAP1: Move board-sx1.h from plat to mach
ARM: OMAP2+: Make omap-wakeupgen.h local
ARM: OMAP2+: Make omap-secure.h local
ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local
...
These were submitted as bug fixes before v3.6 but not considered important
enough to be included in it. Some of them cross over to cleanup territory
as well, and aren't strictly bugfixes.
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Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull non-critical ARM soc bug fixes from Olof Johansson:
"These were submitted as bug fixes before v3.6 but not considered
important enough to be included in it. Some of them cross over to
cleanup territory as well, and aren't strictly bugfixes."
* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
ARM: nomadik: remove NAND_NO_READRDY use
ARM: pxa: fix return value check in pxa2xx_drv_pcmcia_probe()
ARM: SAMSUNG: Add missing variable declaration in s3c64xx_spi1_set_platdata()
ARM: S3C24XX: removes unnecessary semicolon
ARM: S3C24xx: delete double assignment
ARM: EXYNOS: fix address for EXYNOS4 MDMA1
ARM: EXYNOS: fixed SYSMMU setup definition to mate parameter name
ARM: ep93xx: Move ts72xx.h out of include/mach
ARM: ep93xx: use __iomem pointers for MMIO
ARM: msm: Fix early debug uart mapping on some memory configs
ARM: msm: io: Change the default static iomappings to be shared
ARM: msm: io: Remove 7x30 iomap region from 7x00
ARM: msm: Remove call to missing FPGA init on 8660
ARM: OMAP4: wakeupgen: remove duplicate AUXCOREBOOT* read/write
ARM: OMAP4: wakeupgen: Fix the typo in AUXCOREBOOT register save
dma: tegra: make data used as *of_device_id.data const
can: mpc5xxx_can: make data used as *of_device_id.data const
macintosh/mediabay: make data used as *of_device_id.data const
i2c/mpc: make data used as *of_device_id.data const
mfd/da9052: make i2c_device_id array const
...
Here is the big USB pull request for 3.7-rc1
There are lots of gadget driver changes (including copying a bunch of
files into the drivers/staging/ccg/ directory so that the other gadget
drivers can be fixed up properly without breaking that driver), and we
remove the old obsolete ub.c driver from the tree. There are also the
usual XHCI set of updates, and other various driver changes and updates.
We also are trying hard to remove the old dbg() macro, but the final
bits of that removal will be coming in through the networking tree
before we can delete it for good.
All of these patches have been in the linux-next tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB changes from Greg Kroah-Hartman:
"Here is the big USB pull request for 3.7-rc1
There are lots of gadget driver changes (including copying a bunch of
files into the drivers/staging/ccg/ directory so that the other gadget
drivers can be fixed up properly without breaking that driver), and we
remove the old obsolete ub.c driver from the tree.
There are also the usual XHCI set of updates, and other various driver
changes and updates. We also are trying hard to remove the old dbg()
macro, but the final bits of that removal will be coming in through
the networking tree before we can delete it for good.
All of these patches have been in the linux-next tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up several annoying - but fairly mindless - conflicts due to the
termios structure having moved into the tty device, and often clashing
with dbg -> dev_dbg conversion.
* tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (339 commits)
USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc
USB: uas: fix gcc warning
USB: uas: fix locking
USB: Fix race condition when removing host controllers
USB: uas: add locking
USB: uas: fix abort
USB: uas: remove aborted field, replace with status bit.
USB: uas: fix task management
USB: uas: keep track of command urbs
xhci: Intel Panther Point BEI quirk.
powerpc/usb: remove checking PHY_CLK_VALID for UTMI PHY
USB: ftdi_sio: add TIAO USB Multi-Protocol Adapter (TUMPA) support
Revert "usb : Add sysfs files to control port power."
USB: serial: remove vizzini driver
usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems
Increase XHCI suspend timeout to 16ms
USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq
USB: sierra_ms: don't keep unused variable
fsl/usb: Add support for USB controller version 2.4
USB: qcaux: add Pantech vendor class match
...
Host bridge hotplug
- Protect acpi_pci_drivers and acpi_pci_roots (Taku Izumi)
- Clear host bridge resource info to avoid issue when releasing (Yinghai Lu)
- Notify acpi_pci_drivers when hot-plugging host bridges (Jiang Liu)
- Use standard list ops for acpi_pci_drivers (Jiang Liu)
Device hotplug
- Use pci_get_domain_bus_and_slot() to close hotplug races (Jiang Liu)
- Remove fakephp driver (Bjorn Helgaas)
- Fix VGA ref count in hotplug remove path (Yinghai Lu)
- Allow acpiphp to handle PCIe ports without native hotplug (Jiang Liu)
- Implement resume regardless of pciehp_force param (Oliver Neukum)
- Make pci_fixup_irqs() work after init (Thierry Reding)
Miscellaneous
- Add pci_pcie_type(dev) and remove pci_dev.pcie_type (Yijing Wang)
- Factor out PCI Express Capability accessors (Jiang Liu)
- Add pcibios_window_alignment() so powerpc EEH can use generic resource assignment (Gavin Shan)
- Make pci_error_handlers const (Stephen Hemminger)
- Cleanup drivers/pci/remove.c (Bjorn Helgaas)
- Improve Vendor-Specific Extended Capability support (Bjorn Helgaas)
- Use standard list ops for bus->devices (Bjorn Helgaas)
- Avoid kmalloc in pci_get_subsys() and pci_get_class() (Feng Tang)
- Reassign invalid bus number ranges (Intel DP43BF workaround) (Yinghai Lu)
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Merge tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Host bridge hotplug
- Protect acpi_pci_drivers and acpi_pci_roots (Taku Izumi)
- Clear host bridge resource info to avoid issue when releasing
(Yinghai Lu)
- Notify acpi_pci_drivers when hot-plugging host bridges (Jiang Liu)
- Use standard list ops for acpi_pci_drivers (Jiang Liu)
Device hotplug
- Use pci_get_domain_bus_and_slot() to close hotplug races (Jiang
Liu)
- Remove fakephp driver (Bjorn Helgaas)
- Fix VGA ref count in hotplug remove path (Yinghai Lu)
- Allow acpiphp to handle PCIe ports without native hotplug (Jiang
Liu)
- Implement resume regardless of pciehp_force param (Oliver Neukum)
- Make pci_fixup_irqs() work after init (Thierry Reding)
Miscellaneous
- Add pci_pcie_type(dev) and remove pci_dev.pcie_type (Yijing Wang)
- Factor out PCI Express Capability accessors (Jiang Liu)
- Add pcibios_window_alignment() so powerpc EEH can use generic
resource assignment (Gavin Shan)
- Make pci_error_handlers const (Stephen Hemminger)
- Cleanup drivers/pci/remove.c (Bjorn Helgaas)
- Improve Vendor-Specific Extended Capability support (Bjorn
Helgaas)
- Use standard list ops for bus->devices (Bjorn Helgaas)
- Avoid kmalloc in pci_get_subsys() and pci_get_class() (Feng Tang)
- Reassign invalid bus number ranges (Intel DP43BF workaround)
(Yinghai Lu)"
* tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (102 commits)
PCI: acpiphp: Handle PCIe ports without native hotplug capability
PCI/ACPI: Use acpi_driver_data() rather than searching acpi_pci_roots
PCI/ACPI: Protect acpi_pci_roots list with mutex
PCI/ACPI: Use acpi_pci_root info rather than looking it up again
PCI/ACPI: Pass acpi_pci_root to acpi_pci_drivers' add/remove interface
PCI/ACPI: Protect acpi_pci_drivers list with mutex
PCI/ACPI: Notify acpi_pci_drivers when hot-plugging PCI root bridges
PCI/ACPI: Use normal list for struct acpi_pci_driver
PCI/ACPI: Use DEVICE_ACPI_HANDLE rather than searching acpi_pci_roots
PCI: Fix default vga ref_count
ia64/PCI: Clear host bridge aperture struct resource
x86/PCI: Clear host bridge aperture struct resource
PCI: Stop all children first, before removing all children
Revert "PCI: Use hotplug-safe pci_get_domain_bus_and_slot()"
PCI: Provide a default pcibios_update_irq()
PCI: Discard __init annotations for pci_fixup_irqs() and related functions
PCI: Use correct type when freeing bus resource list
PCI: Check P2P bridge for invalid secondary/subordinate range
PCI: Convert "new_id"/"remove_id" into generic pci_bus driver attributes
xen-pcifront: Use hotplug-safe pci_get_domain_bus_and_slot()
...
socfpga, picoxcell, and vexpress.
Multi-platform support is dependent on mach/gpio.h removal and
restructuring of DEBUG_LL and dtb build rules included in this branch.
This has been built for all defconfigs, and booted on highbank with
all 5 platforms enabled.
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Merge tag 'multi-platform-for-3.7' of git://sources.calxeda.com/kernel/linux into next/multiplatform
Enable initial ARM multi-platform support for highbank, mvebu,
socfpga, picoxcell, and vexpress.
Multi-platform support is dependent on mach/gpio.h removal and
restructuring of DEBUG_LL and dtb build rules included in this branch.
This has been built for all defconfigs, and booted on highbank with
all 5 platforms enabled.
By Rob Herring (18) and Arnd Bergmann (1)
via Rob Herring
* tag 'multi-platform-for-3.7' of git://sources.calxeda.com/kernel/linux:
ARM: vexpress: convert to multi-platform
ARM: initial multiplatform support
ARM: mvebu: move armada-370-xp.h in mach dir
ARM: vexpress: remove dependency on mach/* headers
ARM: picoxcell: remove dependency on mach/* headers
ARM: move all dtb targets out of Makefile.boot
ARM: picoxcell: move debug macros to include/debug
ARM: socfpga: move debug macros to include/debug
ARM: mvebu: move debug macros to include/debug
ARM: vexpress: move debug macros to include/debug
ARM: highbank: move debug macros to include/debug
ARM: move debug macros to common location
ARM: make mach/gpio.h headers optional
ARM: orion: move custom gpio functions to orion-gpio.h
ARM: shmobile: move custom gpio functions to sh-gpio.h
ARM: pxa: use gpio_to_irq for sharppm_sl
net: pxaficp_ir: add irq resources
usb: pxa27x_udc: remove IRQ_USB define
staging: ste_rmi4: remove gpio.h include
Conflicts due to addition of bcm2835 and removal of pnx4008 in:
arch/arm/Kconfig
arch/arm/Makefile
Conflicts due to new dtb targets, moved to arch/arm/boot/dts/Makefile in:
arch/arm/mach-imx/Makefile.boot
arch/arm/mach-mxs/Makefile.boot
arch/arm/mach-tegra/Makefile.boot
Signed-off-by: Olof Johansson <olof@lixom.net>
* next/soc: (50 commits)
ARM: OMAP: AM33xx hwmod: fixup SPI after platform_data move
MAINTAINERS: add an entry for the BCM2835 ARM sub-architecture
ARM: bcm2835: instantiate console UART
ARM: bcm2835: add stub clock driver
ARM: bcm2835: add system timer
ARM: bcm2835: add interrupt controller driver
ARM: add infra-structure for BCM2835 and Raspberry Pi
ARM: tegra20: add CPU hotplug support
ARM: tegra30: add CPU hotplug support
ARM: tegra: clean up the common assembly macros into sleep.h
ARM: tegra: replace the CPU CAR access code by tegra_cpu_car_ops
ARM: tegra: introduce tegra_cpu_car_ops structures
ARM: Tegra: Add smp_twd clock for Tegra20
ARM: AM33XX: clock: Add dcan clock aliases for device-tree
ARM: OMAP2+: dpll: Add missing soc_is_am33xx() check for common functions
ARM: OMAP: omap_device: idle devices with no driver bound
ARM: OMAP: omap_device: don't attempt late suspend if no driver bound
ARM: OMAP: omap_device: keep track of driver bound status
ARM: OMAP3+: hwmod: Add AM33XX HWMOD data
ARM: OMAP2+: hwmod: Hook-up am33xx support in omap_hwmod framework
...
Change/remove conflict in arch/arm/mach-ux500/clock.c resolved.
Signed-off-by: Olof Johansson <olof@lixom.net>
The Tegra code-base has contained both a legacy DMA and a dmaengine
driver since v3.6-rcX. This series flips Tegra's defconfig to enable
dmaengine rather than the legacy driver, and removes the legacy driver
and all client code.
The branch is based on v3.6-rc6 in order to pick up a bug-fix to the
ASoC Tegra PCM driver that's required for audio to work correctly when
using dmaengine.
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Merge tag 'tegra-for-3.7-dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
ARM: tegra: switch to dmaengine
The Tegra code-base has contained both a legacy DMA and a dmaengine
driver since v3.6-rcX. This series flips Tegra's defconfig to enable
dmaengine rather than the legacy driver, and removes the legacy driver
and all client code.
* tag 'tegra-for-3.7-dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ASoC: tegra: remove support of legacy DMA driver based access
spi: tegra: remove support of legacy DMA driver based access
ARM: tegra: apbio: remove support of legacy DMA driver based access
ARM: tegra: dma: remove legacy APB DMA driver
ARM: tegra: config: enable dmaengine based APB DMA driver
+ sync to 3.6-rc6
The Medcom is a 16:9 15" terminal that is used for patient infotainment
in hospitals.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The Plutux is a set-top box device based on the Tamonten SOM and can be
connected to a display via HDMI.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
There's no need to place these defines into arch/arm/mach-tegra/include/.
Move them into the SMMU driver to clean up mach-tegra, as a pre-requisite
for single-zImage.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Acked-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Remove the support code which uses the legacy APB DMA driver
for accessing the apbio register.
The driver will use the dmaengine based APB DMA driver for
accessing apbio register.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Remove the legacy APB dma driver. The APB DMA support
is moved to dmaengine based Tegra APB DMA driver.
All clients are also moved to dmaengine based APB DMA
driver.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This branch implements CPU hot-plugging support for both Tegra20 and
Tegra30. Portions of the implementation are contained in the clock
driver, hence this branch is based on the common clock conversion in
order to avoid duplicating work.
This branch is based on previous pull request tegra-for-3.7-common-clk.
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Merge tag 'tegra-for-3.7-cpu-hotplug' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From Stephen Warren:
ARM: tegra: implement CPU hotplug
This branch implements CPU hot-plugging support for both Tegra20 and
Tegra30. Portions of the implementation are contained in the clock
driver, hence this branch is based on the common clock conversion in
order to avoid duplicating work.
By Joseph Lo
via Stephen Warren
* tag 'tegra-for-3.7-cpu-hotplug' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra20: add CPU hotplug support
ARM: tegra30: add CPU hotplug support
ARM: tegra: clean up the common assembly macros into sleep.h
ARM: tegra: replace the CPU CAR access code by tegra_cpu_car_ops
ARM: tegra: introduce tegra_cpu_car_ops structures
This branch contains a few bug-fixes, followed by a conversion of Tegra's
clock driver to the common clock framework, followed by various bug fixes
found after the conversion.
This branch depends on v3.6-rc4.
This branch is a dependency for a few later pull requests.
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Merge tag 'tegra-for-3.7-common-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From Stephen Warren:
ARM: tegra: switch to the common clock framework
This branch contains a few bug-fixes, followed by a conversion of Tegra's
clock driver to the common clock framework, followed by various bug fixes
found after the conversion.
* tag 'tegra-for-3.7-common-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: Tegra: Add smp_twd clock for Tegra20
ARM: tegra: cpu-tegra: explicitly manage re-parenting
ARM: tegra: fix overflow in tegra20_pll_clk_round_rate()
ARM: tegra: Fix data type for io address
ARM: tegra: remove tegra_timer from tegra_list_clks
ARM: tegra30: clocks: fix the wrong tegra_audio_sync_clk_ops name
ARM: tegra: clocks: separate tegra_clk_32k_ops from Tegra20 and Tegra30
ARM: tegra: Remove duplicate code
ARM: tegra: Port tegra to generic clock framework
ARM: tegra: Add clk_tegra structure and helper functions
ARM: tegra: Rename tegra20 clock file
ARM: tegra20: Separate out clk ops and clk data
ARM: tegra30: Separate out clk ops and clk data
ARM: tegra: fix U16 divider range check
ARM: tegra: turn on UART A clock at boot
This branch removes all remaining board files for Tegra; booting is
now through device tree only.
Related, the Harmony DT is augmented with regulators, since this allows
removal of board-harmony-power.c; no other boards had regulator support.
This change depends on an enhancement to the TPS6586x regulator driver,
hence the dependency mentioned below.
This branch is based on v3.6-rc4, followed by a merge of
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git tps6589x-dt
This branch is a dependency the cleanup2 branch.
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Merge tag 'tegra-for-3.7-board-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren:
ARM: tegra: remove board files
This branch removes all remaining board files for Tegra; booting is
now through device tree only.
Related, the Harmony DT is augmented with regulators, since this allows
removal of board-harmony-power.c; no other boards had regulator support.
This change depends on an enhancement to the TPS6586x regulator driver,
hence the dependency mentioned below.
* tag 'tegra-for-3.7-board-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: dt: tegra: harmony: configure power off
ARM: dt: tegra: harmony: add regulators
ARM: tegra: remove board (but not DT) support for Harmony
ARM: tegra: remove board (but not DT) support for Paz00
ARM: tegra: remove board (but not DT) support for TrimSlice
Pull in a dependent branch from Mark Brown's regulator tree for the tegra/cleanup branch.
* depends/tps6589x-dt:
regulator: tps6586x: add support for SYS rail
This branch contains a few early cleanups; consistent use of IO_ADDRESS,
always selecting USE_OF since we're converting to device-tree-only this
merge window, and removing includes of some header files as part of
working towards single zImage.
This branch is based on v3.6-rc4.
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Merge tag 'tegra-for-3.7-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren:
This branch contains a few early cleanups; consistent use of IO_ADDRESS,
always selecting USE_OF since we're converting to device-tree-only this
merge window, and removing includes of some header files as part of
working towards single zImage.
* tag 'tegra-for-3.7-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
mmc: tegra: remove useless include of <mach/*.h>
gpio: tegra: remove useless includes of <mach/*.h>
ARM: tegra: remove duplicate select USE_OF
ARM: tegra: use IO_ADDRESS for getting virtual address
Now that Tegra's pinmux is configured solely from device tree, there's
no need for the pinconf types to be defined in arch/arm/mach-tegra/.
Move it into the pinctrl directory to clean up mach-tegra, as a pre-
requisite for single-zImage.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Nothing from these files is needed, so remove the includes. This helps
single zImage work by reducing use of the mach-tegra/include/mach/
directory.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Now that all boards are converted to device tree, devices.[ch] and
board-pinmux.[ch] are no longer used. So, remove them.
The only exception is the EHCI platform data in devices.h. Move that
data to board-dt-tegra20.c - the only places it's used.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Harmony uses a TPS6586x regulator. Instantiate this, and hook up a
couple of fixed GPIO-controlled regulators too.
Based on Ventana regulator patch by Stephen Warren <swarren@nvidia.com>
and converted to Harmony.
swarren made the following changes:
* Added ldo0 regulator configuration to device tree, and updated
board-harmony-pcie.c for the new regulator name.
* Fixed vdd_1v05's voltage from 10.5V to 1.05V.
* Modified board-harmony-pcie.c to obtain the en_vdd_1v05 GPIO number at
run-time from device tree instead of hard-coding it.
* Removed board-harmony{-power.c,.h} now that they're unused.
* Disabled vdd_1v05 regulator; the code in board-harmony-pcie.c hijacks
this GPIO for now. This will be fixed when the PCIe driver is re-
written as a driver. The code can't regulator_get("vdd_1v05") right
now, because the vdd_1v05 regulator's probe gets deferred due to its
supply being the PMIC, which gets probed after the regulator the first
time around, and this dependency is only resolved by repeated probing,
which happens when deferred_probe_initcall() is called, which happens
in a late initcall, whose runtime order relative to harmony_pcie_init()
is undefined, since that's also called from a late initcall.
* Removed unused harmony_pcie_initcall().
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Harmony can be booted using device tree with equal functionality as when
booted using a board file. Remove as much of the board file as is
possible, since it's no longer needed.
Two special-cases are still left in board-dt-tegra20.c, since the Tegra
PCIe driver doesn't support device tree yet, and the Harmony .dts file
doesn't yet describe regulators which are needed for PCIe. This logic is
now enabled unconditionally rather than via CONFIG_MACH_HARMONY. While
this is more code than other boards, it's still unlikely to be much of a
problem, and both regulators and PCIe should be supported via device tree
in the near future, allowing the remaining code to be removed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Paz00 (Toshiba AC100) can be booted using device tree with equal
functionality as when booted using a board file. Remove as much of the
board file as is possible, since it's no longer needed.
One special-case is still left in board-dt-tegra20.c, since there is no
way to create a WiFi rfkill device from device tree yet. This logic is
now enabled unconditionally rather than via CONFIG_MACH_PAZ00. The extra
cases where it's enabled (.configs which did not enable Paz00 support)
shouldn't impact much since the amount of code is tiny.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Marc Dietrich <marvin24@gmx.de>
TrimSlice can be booted using device tree with equal functionality as
when booted using a board file. Remove the board file since it's no
longer needed.
One special-case is still left in board-dt-tegra20.c, since the Tegra
PCIe driver doesn't support device tree yet. This logic is now enabled
by CONFIG_TEGRA_PCI rather than via CONFIG_MACH_TRIMSLICE. The extra
cases where it's enabled (.configs which did not enable TrimSlice
support) shouldn't impact much since the amount of code is tiny.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
In preparation to support multi-platform kernels, move all the dtb targets
out of the mach Makefile.boot and into the arch/arm/boot/dts/Makefile
which is closer to the sources.
DTBs are only built when CONFIG_OF is enabled and now use top level
CONFIG_ARCH_xxx instead of chip or board specific config options.
Signed-off-by: Rob Herring <rob.herring@calxeda.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>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Most platforms don't need mach/gpio.h and it prevents multi-platform
kernel images. Add CONFIG_NEED_MACH_GPIO_H and make platforns select it
if they need gpio.h. This is platforms that define __GPIOLIB_COMPLEX
or have lots of implicit includes pulled in by mach/gpio.h.
at91 and omap have gpio clean-up pending and can drop
CONFIG_NEED_MACH_GPIO_H once that is in.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This the definitions for the tegra sdhci driver out of
the tegra include directories, which is the last one
for this platform.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Chris Ball <cjb@laptop.org>
Hotplug function put CPU in offline or online mode at runtime.
When the CPU been put into offline, it was been clock gated. The
offline CPU can be power gated, when the remaining CPU goes into
LP2.
Based on the worked by:
Colin Cross <ccross@android.com>
Gary King <gking@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Hotplug function put CPUs in offline or online state at runtime.
When the CPU been put in the offline state, it was been clock and
power gated. Except primary CPU other CPUs can be hotplugged.
Based on the work by:
Scott Williams <scwilliams@nvidia.com>
Colin Cross <ccross@android.com>
Gary King <gking@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
There are some common macros for Tegra low-level assembly code. Clean
up them into one header file and move the definitions that will be
re-used into it as well.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Replacing the code that directly access to CAR registers with
tegra_cpu_car_ops. This ops hides CPU CAR access inside and
provides control interface for it.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The tegra_cpu_car_ops provide the interface for CPU to control
it's clock gating and reset status. The other drivers should use
this for CPU control. And should not directly access CAR registers
to control CPU.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tegra20 clock table have the entry for clock (tegra_i2c.x, "i2c")
which is no more require as driver acquire clock with name of
"div-clk" and "fast-clk".
Remove these entries from table.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add connection name "div-clk" for the i2c clock entry.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tegra's i2c controller require two clock sources named as
div-clk and fast-clk for proper operation.
Currently, the entry of fast-clk is missing in tegra30
clock table and it is incorrectly named in the tegra20
clock table.
Adds aliases to enable lookups for "fast-clk" to succeed.
A later patch will remove the incorrectly named clock,
once the driver is modified to use the new name.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Viresh Kumar
Wei Yongjun
Stephen Warren
Joseph Lo
Tony Lindgren
Thierry Reding
Will Deacon
Catalin Marinas
Felipe Balbi
Danny Huang
Hiroshi Doyu
Russell King
Linus Torvalds
Olof Johansson
Dinh Nguyen
Laxman Dewangan
Venu Byravarasu
Prashant Gaikwad
Richard Zhao
Shawn Guo
Rob Herring
Greg Kroah-Hartman
Masanari Iida
Sivaram Nair
Peter De Schrijver
Wei Ni
Mark Zhang
Arnd Bergmann
Joerg Roedel