Add support for L2 cache controller (PL310) on AM437x SoC.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Get rid of init call to initialize L2 cache. Instead use the init_early
machine hook. This helps in using the initialization routine across
SoCs without the need of ugly cpu_is_*() checks.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
L2 cache initialization for OMAP4 redundantly sets the cache policy to
Round-Robin. This is not needed since thats the PL310 default anyway.
Removing this reduces the number of platform specific aux control
settings.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Avoid reading directly from the L2 registers in platform code. The L2
code will have already saved the register values itself into the
l2x0_saved_regs structure, so platform code should just move these
values to where they're required.
This is safe because the L2x0 will have been initialised by an early
initcall, whereas the OMAP4 PM code is initialised late.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Since we now always enable NS access to the unlock registers, this can
be removed from OMAP4. Remove the NS access bit for the interrupt
registers from OMAP4 as well - nothing in the kernel accesses that yet,
and we can add it in core code when we have the need.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The cache size should already be present in the L2 cache auxiliary
control register: it is part of the integration process to configure
the hardware IP. Most platforms get this right, yet still many
cargo-cult program, and assume that they always need specifying to
the L2 cache code. Remove them so we can find out which really need
this.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Now that OMAP2 uses the write_sec method, we don't need to enable the L2
cache in OMAP2 specific code; this can be done via the normal mechanisms
in the L2C code. Remove the OMAP2 specific code.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
With the write_sec method, we no longer need to override the default
L2C disable method, and we no longer need the L2C set_debug method.
Both of these can be handled via the write_sec method.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Since we now automatically enable early BRESP in core L2C-310 code when
we detect a Cortex-A9, we don't need platforms/SoCs to set this bit
explicitly. Instead, they should seek to preserve the value of bit 30
in the auxiliary control register.
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
We have a mixture of different devices with different register layouts,
but we group all the bits together in an opaque mess. Split them out
into those which are L2C-310 specific and ones which refer to earlier
devices. Provide full auxiliary control register definitions.
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Santosh says:
> But we should kill all of that since we long back decided to remove
> ES1.0 related code. The mach-omap code alreasy has removed the ES1.0
> compatibility so feel free to remove any specific ES1.0
> related stuff. That silicon is long dead.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
On my DRA7 system, when the kernel is built in Thumb-2 mode, the secondary CPU
(Cortex A15) fails to come up causing SMP boot on second CPU to timeout. This
seems to be because the CPU is in ARM mode once the ROM hands over control to
the kernel. Switch to Thumb-2 mode if required once the kernel is control of
secondary CPU. On OMAP4 on the other hand, it appears to be in Thumb-2 mode on
entry so this is not required and SMP boot works as is.
Also corrected a spurious '+' and updated copyright information.
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
At least the smc91x driver expects the device to be at 0x300
offset from bus base address. This does not work currently
for GPMC when booted in device tree mode as it attempts to
remap the the allocated GPMC partition to the address
configured by the device tree plus the device offset.
Note that this works just fine when booted with legacy mode.
Let's fix the issue by just ignoring any device specific
offset while remapping. And let's make sure the remap
address confirms to the GPMC 16MB minimum granularity
as listed in the TRM for GPMC_CONFIG7 BASEADDRESS bits.
Otherwise we can get something like this:
omap-gpmc 6e000000.gpmc: cannot remap GPMC CS 1 to 0x01000300
Cc: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
If gpmc_cs_remap() fails we will get an error because we are calling
release_resource() on an uninitialized resource. Let's fix that by
checking the resource flags. And while at it, let's also make
gpmc_cs_delete_mem() use the res pointer that we already have to
avoid confusion.
Without this patch we can get the following error:
omap-gpmc 6e000000.gpmc: cannot remap GPMC CS 1 to 0x01000300
Unable to handle kernel NULL pointer dereference at virtual address 00000018
...
(gpmc_cs_free+0x94/0xc8)
(gpmc_probe_generic_child+0x178/0x1ec)
(gpmc_probe_dt+0x1bc/0x2cc)
(gpmc_probe+0x250/0x44c)
(platform_drv_probe+0x3c/0x6c)
(really_probe+0x74/0x208)
(driver_probe_device+0x34/0x50)
(bus_for_each_drv+0x60/0x8c)
(device_attach+0x80/0xa4)
(bus_probe_device+0x88/0xb0)
(device_add+0x320/0x450)
(of_platform_device_create_pdata+0x80/0x9c)
(of_platform_bus_create+0xd0/0x170)
(of_platform_bus_create+0x12c/0x170)
(of_platform_populate+0x60/0x98)
(pdata_quirks_init+0x30/0x48)
(customize_machine+0x20/0x48)
(do_one_initcall+0x2c/0x14c)
(do_basic_setup+0x98/0xd8)
(kernel_init_freeable+0x12c/0x1e0)
(kernel_init+0x8/0xf0)
(ret_from_fork+0x14/0x2c)
Code: e1a04000 e59f0070 eb195136 e5942010 (e5923018)
Cc: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: tony Lindgren <tony@atomide.com>
A few OMAP hwmod and clock fixes for v3.15-rc. Probably the most useful
fix is the AM43xx DPLL patch.
Basic build, boot, and PM test results are here:
http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.15-rc/20140411130021/
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Merge tag 'for-v3.15-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.15/fixes
OMAP hwmod and clock fixes for v3.15-rc
A few OMAP hwmod and clock fixes for v3.15-rc. Probably the most useful
fix is the AM43xx DPLL patch.
Basic build, boot, and PM test results are here:
http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.15-rc/20140411130021/
Do not try to initialize display for DT boot, since omapdss
is now initialized via Device Tree. Without this patch the
display subsystem does not properly come up.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Bug was introduced by commit 'f92d959: ARM: OMAP2+: hwmod:
Extract no-idle and no-reset info from DT'
There were 2 versions of the patch posted which resulted in the above
commit. While v1 [1] had the bug, v2 [2] had it fixed.
However v1 apparently seemed to have been pulled in by mistake
introducing the bug.
Given of_find_property() does return NULL when the node passed is
NULL, it did not introduce any functional issues as such, just the
fact that the second if check was executed unnecessarily.
[1] https://www.mail-archive.com/linux-omap@vger.kernel.org/msg94220.html
[2] http://www.spinics.net/lists/linux-omap/msg98490.html
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Fixes: f92d9597f7 ("ARM: OMAP2+: hwmod: Extract no-idle and no-reset info from DT")
Signed-off-by: Paul Walmsley <paul@pwsan.com>
On AM43xx, if a PLL is in bypass at kernel init, the code in
omap2_get_dpll_rate() will not realize this and will try to calculate
the clock rate using the multiplier and the divider, resulting in
errors.
omap2_init_dpll_parent() has similar issue.
Add the missing soc_is_am43xx() check to make the code work on AM43xx.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Sathya Prakash M R <sathyap@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
OMAP3 doesn't contain "l3_init_clkdm" clock domain. Use the
proper clock domains for USB Host and USB TLL modules.
Gets rid of the following warnings during boot
omap_hwmod: usb_host_hs: could not associate to clkdm l3_init_clkdm
omap_hwmod: usb_tll_hs: could not associate to clkdm l3_init_clkdm
Reported-by: Nishanth Menon <nm@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Fixes: de231388cb ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3")
Cc: Keshava Munegowda <keshava_mgowda@ti.com>
Cc: Partha Basak <parthab@india.ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
There is a solitary write to this register every wakeup from off-mode,
which isn't doing anything, so remove it.
Also note that modifying this register trashes any attempted
voltage scaling configuration and the change probably should
never have gotten merged in the first place.
Cc: Nishanth Menon <nm@ti.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com: updated comments to describe regression]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This contains OMAP related fbdev changes for 3.15. The bulk of the patches are
for adding Device Tree support for OMAP Display Subsystem:
* SoCs: OMAP2/3/4
* Boards: OMAP4 Panda, OMAP4 SDP, OMAP3 Beagle, OMAP3 Beagle-xM, OMAP3
IGEP0020, OMAP3 N900
* Devices: TFP410 Encoder, tpd12s015 HDMI companion chip, Sony acx565akm panel,
MIPI DSI Command mode panel and HDMI, DVI and Analog TV connectors
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Merge tag 'fbdev-omap-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull OMAP fbdev changes from Tomi Valkeinen:
"This is based on the already pulled fbdev-main changes, and this also
merges .dts branch from Tony Lindgren (which has also been pulled), so
that I was able to add the display related .dts changes.
This contains OMAP related fbdev changes for 3.15. The bulk of the
patches are for adding Device Tree support for OMAP Display Subsystem:
- SoCs: OMAP2/3/4
- Boards: OMAP4 Panda, OMAP4 SDP, OMAP3 Beagle, OMAP3 Beagle-xM,
OMAP3 IGEP0020, OMAP3 N900
- Devices: TFP410 Encoder, tpd12s015 HDMI companion chip, Sony
acx565akm panel, MIPI DSI Command mode panel and HDMI, DVI and
Analog TV connectors"
* tag 'fbdev-omap-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (45 commits)
OMAPDSS: HDMI: fix interlace output
OMAPDSS: add missing __init for dss_init_ports
ARM: OMAP2+: remove pdata quirks for displays
OMAPDSS: remove DT hacks for regulators
Doc/DT: Add DT binding documentation for tpd12s015 encoder
Doc/DT: Add DT binding documentation for TFP410 encoder
Doc/DT: Add DT binding documentation for Sony acx565akm panel
Doc/DT: Add DT binding documentation for MIPI DSI CM Panel
Doc/DT: Add DT binding documentation for HDMI Connector
Doc/DT: Add DT binding documentation for DVI Connector
Doc/DT: Add DT binding documentation for Analog TV Connector
ARM: omap3-n900.dts: add display information
ARM: omap3-igep0020.dts: add display information
ARM: omap3-beagle-xm.dts: add display information
ARM: omap3-beagle.dts: add display information
ARM: omap4-sdp.dts: add display information
Doc/DT: Add DT binding documentation for OMAP DSS
OMAPDSS: acx565akm: Add DT support
OMAPDSS: connector-analog-tv: Add DT support
OMAPDSS: hdmi-connector: Add DT support
...
This time a few more updates queued up.
* Rework VT-d code to support ACPI devices
* Improvements for memory and PCI hotplug support
in the VT-d driver
* Device-tree support for OMAP IOMMU
* Convert OMAP IOMMU to use devm_* interfaces
* Fixed PASID support for AMD IOMMU
* Other random cleanups and fixes for OMAP, ARM-SMMU
and SHMOBILE IOMMU
Most of the changes are in the VT-d driver because some rework was
necessary for better hotplug and ACPI device support.
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Merge tag 'iommu-updates-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU upates from Joerg Roedel:
"This time a few more updates queued up.
- Rework VT-d code to support ACPI devices
- Improvements for memory and PCI hotplug support in the VT-d driver
- Device-tree support for OMAP IOMMU
- Convert OMAP IOMMU to use devm_* interfaces
- Fixed PASID support for AMD IOMMU
- Other random cleanups and fixes for OMAP, ARM-SMMU and SHMOBILE
IOMMU
Most of the changes are in the VT-d driver because some rework was
necessary for better hotplug and ACPI device support"
* tag 'iommu-updates-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (75 commits)
iommu/vt-d: Fix error handling in ANDD processing
iommu/vt-d: returning free pointer in get_domain_for_dev()
iommu/vt-d: Only call dmar_acpi_dev_scope_init() if DRHD units present
iommu/vt-d: Check for NULL pointer in dmar_acpi_dev_scope_init()
iommu/amd: Fix logic to determine and checking max PASID
iommu/vt-d: Include ACPI devices in iommu=pt
iommu/vt-d: Finally enable translation for non-PCI devices
iommu/vt-d: Remove to_pci_dev() in intel_map_page()
iommu/vt-d: Remove pdev from intel_iommu_attach_device()
iommu/vt-d: Remove pdev from iommu_no_mapping()
iommu/vt-d: Make domain_add_dev_info() take struct device
iommu/vt-d: Make domain_remove_one_dev_info() take struct device
iommu/vt-d: Rename 'hwdev' variables to 'dev' now that that's the norm
iommu/vt-d: Remove some pointless to_pci_dev() calls
iommu/vt-d: Make get_valid_domain_for_dev() take struct device
iommu/vt-d: Make iommu_should_identity_map() take struct device
iommu/vt-d: Handle RMRRs for non-PCI devices
iommu/vt-d: Make get_domain_for_dev() take struct device
iommu/vt-d: Make domain_context_mapp{ed,ing}() take struct device
iommu/vt-d: Make device_to_iommu() cope with non-PCI devices
...
These changes are mostly for ARM specific device drivers that either
don't have an upstream maintainer, or that had the maintainer ask
us to pick up the changes to avoid conflicts. A large chunk of this
are clock drivers (bcm281xx, exynos, versatile, shmobile), aside from
that, reset controllers for STi as well as a large rework of the
Marvell Orion/EBU watchdog driver are notable.
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Merge tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver changes from Arnd Bergmann:
"These changes are mostly for ARM specific device drivers that either
don't have an upstream maintainer, or that had the maintainer ask us
to pick up the changes to avoid conflicts.
A large chunk of this are clock drivers (bcm281xx, exynos, versatile,
shmobile), aside from that, reset controllers for STi as well as a
large rework of the Marvell Orion/EBU watchdog driver are notable"
* tag 'drivers-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (99 commits)
Revert "dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac."
Revert "net: stmmac: Add SOCFPGA glue driver"
ARM: shmobile: r8a7791: Fix SCIFA3-5 clocks
ARM: STi: Add reset controller support to mach-sti Kconfig
drivers: reset: stih416: add softreset controller
drivers: reset: stih415: add softreset controller
drivers: reset: Reset controller driver for STiH416
drivers: reset: Reset controller driver for STiH415
drivers: reset: STi SoC system configuration reset controller support
dts: socfpga: Add sysmgr node so the gmac can use to reference
dts: socfpga: Add support for SD/MMC on the SOCFPGA platform
reset: Add optional resets and stubs
ARM: shmobile: r7s72100: fix bus clock calculation
Power: Reset: Generalize qnap-poweroff to work on Synology devices.
dts: socfpga: Update clock entry to support multiple parents
ARM: socfpga: Update socfpga_defconfig
dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac.
net: stmmac: Add SOCFPGA glue driver
watchdog: orion_wdt: Use %pa to print 'phys_addr_t'
drivers: cci: Export CCI PMU revision
...
A large part of the arm-soc patches are nowadays DT changes, adding support
for new SoCs, boards and devices without changing kernel source. The plan
is still to move the devicetree files out of the kernel tree and reduce
the amount of churn going on here, but we keep finding reasons to delay
doing that.
Changes are really all over the place, with little sticking out particularly.
We have contributions from a total of 116 people in this branch.
Unfortunately, the size of this branch also causes a significant number
of conflicts at the moment, typically when subsystem maintainers merge
patches that change the driver at the same time as the dts files. In
most cases this could be avoided because the dts changes are supposed
to be compatible in both ways, and we are asking everyone to send ARM
dts changes through our tree only.
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Merge tag 'dt-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device tree changes from Arnd Bergmann:
"A large part of the arm-soc patches are nowadays DT changes, adding
support for new SoCs, boards and devices without changing kernel
source. The plan is still to move the devicetree files out of the
kernel tree and reduce the amount of churn going on here, but we keep
finding reasons to delay doing that.
Changes are really all over the place, with little sticking out
particularly. We have contributions from a total of 116 people in
this branch.
Unfortunately, the size of this branch also causes a significant
number of conflicts at the moment, typically when subsystem
maintainers merge patches that change the driver at the same time as
the dts files. In most cases this could be avoided because the dts
changes are supposed to be compatible in both ways, and we are asking
everyone to send ARM dts changes through our tree only"
* tag 'dt-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (541 commits)
dts: stmmac: Document the clocks property in the stmmac base document
dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac.
ARM: STi: stih41x: Add support for the FSM Serial Flash Controller
ARM: STi: stih416: Add support for the FSM Serial Flash Controller
ARM: tegra: fix Dalmore pinctrl configuration
ARM: dts: keystone: use common "ti,keystone" compatible instead of -evm
ARM: dts: k2hk-evm: set ubifs partition size for 512M NAND
ARM: dts: Build all keystone dt blobs
ARM: dts: keystone: Fix control register range for clktsip
ARM: dts: keystone: Fix domain register range for clkfftc1
ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot
ARM: dts: add bcm590xx pmu support and enable for bcm28155-ap
ARM: dts: bcm21664: Add device tree files.
ARM: DT: bcm21664: Device tree bindings
ARM: efm32: properly namespace i2c location property
ARM: efm32: fix unit address part in USART2 device nodes' names
ARM: mvebu: Enable NAND controller in Armada 385-DB
ARM: mvebu: Add support for NAND controller in Armada 38x SoC
ARM: mvebu: Add the Core Divider clock to Armada 38x SoCs
ARM: mvebu: Add a 2 GHz fixed-clock on Armada 38x SoCs
...
Lots of changes specific to one of the SoC families. Some that
stick out are:
* mach-qcom gains new features, most importantly SMP support for
the newer chips (Stephen Boyd, Rohit Vaswani)
* mvebu gains support for three new SoCs: Armada 375, 380 and 385
(Thomas Petazzoni and Free-electrons team)
* SMP support for Rockchips (Heiko Stübner)
* Lots of i.MX changes (Shawn Guo)
* Added support for BCM5301x SoC (Hauke Mehrtens)
* Multiplatform support for Marvell Kirkwood and Dove
(Andrew Lunn and Sebastian Hesselbarth doing the final part
of a long journey)
* Unify davinci platforms and remove obsolete ones (Sekhar Nori,
Arnd Bergmann)
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Merge tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC specific changes from Arnd Bergmann:
"Lots of changes specific to one of the SoC families. Some that stick
out are:
- mach-qcom gains new features, most importantly SMP support for the
newer chips (Stephen Boyd, Rohit Vaswani)
- mvebu gains support for three new SoCs: Armada 375, 380 and 385
(Thomas Petazzoni and Free-electrons team)
- SMP support for Rockchips (Heiko Stübner)
- Lots of i.MX changes (Shawn Guo)
- Added support for BCM5301x SoC (Hauke Mehrtens)
- Multiplatform support for Marvell Kirkwood and Dove (Andrew Lunn
and Sebastian Hesselbarth doing the final part of a long journey)
- Unify davinci platforms and remove obsolete ones (Sekhar Nori, Arnd
Bergmann)"
* tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (126 commits)
ARM: sunxi: Select HAVE_ARM_ARCH_TIMER
ARM: cache-tauros2: remove ARMv6 code
ARM: mvebu: don't select CONFIG_NEON
ARM: davinci: fix DT booting with default defconfig
ARM: configs: bcm_defconfig: enable bcm590xx regulator support
ARM: davinci: remove tnetv107x support
MAINTAINERS: Update ARM STi maintainers
ARM: restrict BCM_KONA_UART to ARCH_BCM_MOBILE
ARM: bcm21664: Add board support.
ARM: sunxi: Add the new watchog compatibles to the reboot code
ARM: enable ARM_HAS_SG_CHAIN for multiplatform
ARM: davinci: remove da8xx_omapl_defconfig
ARM: davinci: da8xx: fix multiple watchdog device registration
ARM: davinci: add da8xx specific configs to davinci_all_defconfig
ARM: davinci: enable da8xx build concurrently with older devices
ARM: BCM5301X: workaround suppress fault
ARM: BCM5301X: add early debugging support
ARM: BCM5301X: initial support for the BCM5301X/BCM470X SoCs with ARM CPU
ARM: mach-bcm: Remove GENERIC_TIME
ARM: shmobile: APMU: Fix warnings due to improper printk formats
...
These cleanup patches are mainly move stuff around and should all
be harmless. They are mainly split out so that other branches can
be based on top to avoid conflicts.
Notable changes are:
* We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no
longer used. (Uwe Kleine-König)
* The Qualcomm MSM platform is split out into legacy mach-msm and
new-style mach-qcom, to allow easier maintainance of the new
hardware support without regressions. (Kumar Gala)
* A rework of some of the Kconfig logic to simplify multiplatform
support (Rob Herring)
* Samsung Exynos gets closer to supporting multiplatform (Sachin
Kamat and others)
* mach-bcm3528 gets merged into mach-bcm (Stephen Warren)
* at91 gains some common clock framework support (Alexandre Belloni,
Jean-Jacques Hiblot and other French people).
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Merge tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann:
"These cleanup patches are mainly move stuff around and should all be
harmless. They are mainly split out so that other branches can be
based on top to avoid conflicts.
Notable changes are:
- We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no
longer used (Uwe Kleine-König)
- The Qualcomm MSM platform is split out into legacy mach-msm and
new-style mach-qcom, to allow easier maintainance of the new
hardware support without regressions (Kumar Gala)
- A rework of some of the Kconfig logic to simplify multiplatform
support (Rob Herring)
- Samsung Exynos gets closer to supporting multiplatform (Sachin
Kamat and others)
- mach-bcm3528 gets merged into mach-bcm (Stephen Warren)
- at91 gains some common clock framework support (Alexandre Belloni,
Jean-Jacques Hiblot and other French people)"
* tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits)
ARM: hisi: select HAVE_ARM_SCU only for SMP
ARM: efm32: allow uncompress debug output
ARM: prima2: build reset code standalone
ARM: at91: add PWM clock
ARM: at91: move sam9261 SoC to common clk
ARM: at91: prepare common clk transition for sam9261 SoC
ARM: at91: updated the at91_dt_defconfig with support for the ADS7846
ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek
ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs
ARM: at91: dt: Add at91sam9261 dt SoC support
ARM: at91: switch sam9rl to common clock framework
ARM: at91/dt: define main clk frequency of at91sam9rlek
ARM: at91/dt: define at91sam9rl clocks
ARM: at91: prepare common clk transition for sam9rl SoCs
ARM: at91: prepare sam9 dt boards transition to common clk
ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek
ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs
ARM: at91: Add at91sam9rl DT SoC support
ARM: at91: prepare at91sam9rl DT transition
ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig
...
Lots of isolated bug fixes that were not found to be important
enough to be submitted before the merge window or backported
into stable kernels.
The vast majority of these came out of Arnd's randconfig testing
and just prevents running into build-time bugs in configurations
that we do not care about in practice.
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Merge tag 'fixes-non-critical-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC non-critical bug fixes from Arnd Bergmann:
"Lots of isolated bug fixes that were not found to be important enough
to be submitted before the merge window or backported into stable
kernels.
The vast majority of these came out of Arnd's randconfig testing and
just prevents running into build-time bugs in configurations that we
do not care about in practice"
* tag 'fixes-non-critical-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits)
ARM: at91: fix a typo
ARM: moxart: fix CPU selection
ARM: tegra: fix board DT pinmux setup
ARM: nspire: Fix compiler warning
IXP4xx: Fix DMA masks.
Revert "ARM: ixp4xx: Make dma_set_coherent_mask common, correct implementation"
IXP4xx: Fix Goramo Multilink GPIO conversion.
Revert "ARM: ixp4xx: fix gpio rework"
ARM: tegra: make debug_ll code build for ARMv6
ARM: sunxi: fix build for THUMB2_KERNEL
ARM: exynos: add missing include of linux/module.h
ARM: exynos: fix l2x0 saved regs handling
ARM: samsung: select CRC32 for SAMSUNG_PM_CHECK
ARM: samsung: select ATAGS where necessary
ARM: samsung: fix SAMSUNG_PM_DEBUG Kconfig logic
ARM: samsung: allow serial driver to be disabled
ARM: s5pv210: enable IDE support in MACH_TORBRECK
ARM: s5p64x0: fix building with only one soc type
ARM: s3c64xx: select power domains only when used
ARM: s3c64xx: MACH_SMDK6400 needs HSMMC1
...
Pull ARM changes from Russell King:
- Perf updates from Will Deacon:
- Support for Qualcomm Krait processors (run perf on your phone!)
- Support for Cortex-A12 (run perf stat on your FPGA!)
- Support for perf_sample_event_took, allowing us to automatically decrease
the sample rate if we can't handle the PMU interrupts quickly enough
(run perf record on your FPGA!).
- Basic uprobes support from David Long:
This patch series adds basic uprobes support to ARM. It is based on
patches developed earlier by Rabin Vincent. That approach of adding
hooks into the kprobes instruction parsing code was not well received.
This approach separates the ARM instruction parsing code in kprobes out
into a separate set of functions which can be used by both kprobes and
uprobes. Both kprobes and uprobes then provide their own semantic action
tables to process the results of the parsing.
- ARMv7M (microcontroller) updates from Uwe Kleine-König
- OMAP DMA updates (recently added Vinod's Ack even though they've been
sitting in linux-next for a few months) to reduce the reliance of
omap-dma on the code in arch/arm.
- SA11x0 changes from Dmitry Eremin-Solenikov and Alexander Shiyan
- Support for Cortex-A12 CPU
- Align support for ARMv6 with ARMv7 so they can cooperate better in a
single zImage.
- Addition of first AT_HWCAP2 feature bits for ARMv8 crypto support.
- Removal of IRQ_DISABLED from various ARM files
- Improved efficiency of virt_to_page() for single zImage
- Patch from Ulf Hansson to permit runtime PM callbacks to be available for
AMBA devices for suspend/resume as well.
- Finally kill asm/system.h on ARM.
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (89 commits)
dmaengine: omap-dma: more consolidation of CCR register setup
dmaengine: omap-dma: move IRQ handling to omap-dma
dmaengine: omap-dma: move register read/writes into omap-dma.c
ARM: omap: dma: get rid of 'p' allocation and clean up
ARM: omap: move dma channel allocation into plat-omap code
ARM: omap: dma: get rid of errata global
ARM: omap: clean up DMA register accesses
ARM: omap: remove almost-const variables
ARM: omap: remove references to disable_irq_lch
dmaengine: omap-dma: cleanup errata 3.3 handling
dmaengine: omap-dma: provide register read/write functions
dmaengine: omap-dma: use cached CCR value when enabling DMA
dmaengine: omap-dma: move barrier to omap_dma_start_desc()
dmaengine: omap-dma: move clnk_ctrl setting to preparation functions
dmaengine: omap-dma: improve efficiency loading C.SA/C.EI/C.FI registers
dmaengine: omap-dma: consolidate clearing channel status register
dmaengine: omap-dma: move CCR buffering disable errata out of the fast path
dmaengine: omap-dma: provide register definitions
dmaengine: omap-dma: consolidate setup of CCR
dmaengine: omap-dma: consolidate setup of CSDP
...
Various fbdev fixes and improvements, but nothing big.
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Merge tag 'fbdev-main-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev changes from Tomi Valkeinen:
"Various fbdev fixes and improvements, but nothing big"
* tag 'fbdev-main-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (38 commits)
fbdev: Make the switch from generic to native driver less alarming
Video: atmel: avoid the id of fix screen info is overwritten
video: imxfb: Add DT default contrast control register property.
video: atmel_lcdfb: ensure the hardware is initialized with the correct mode
fbdev: vesafb: add dev->remove() callback
fbdev: efifb: add dev->remove() callback
video: pxa3xx-gcu: switch to devres functions
video: pxa3xx-gcu: provide an empty .open call
video: pxa3xx-gcu: pass around struct device *
video: pxa3xx-gcu: rename some symbols
sisfb: fix 1280x720 resolution support
video: fbdev: uvesafb: Remove impossible code path in uvesafb_init_info
video: fbdev: uvesafb: Remove redundant NULL check in uvesafb_remove
fbdev: FB_OPENCORES should depend on HAS_DMA
OMAPDSS: convert pixel clock to common videomode style
OMAPDSS: Remove unused get_context_loss_count support
OMAPDSS: use DISPC register to detect context loss
video: da8xx-fb: Use "SIMPLE_DEV_PM_OPS" macro
video: imxfb: Convert to SIMPLE_DEV_PM_OPS
video: imxfb: Resolve mismatch between backlight/contrast
...
Pull media updates from Mauro Carvalho Chehab:
"The main set of series of patches for media subsystem, including:
- document RC sysfs class
- added an API to setup scancode to allow waking up systems using the
Remote Controller
- add API for SDR devices. Drivers are still on staging
- some API improvements for getting EDID data from media
inputs/outputs
- new DVB frontend driver for drx-j (ATSC)
- one driver (it913x/it9137) got removed, in favor of an improvement
on another driver (af9035)
- added a skeleton V4L2 PCI driver at documentation
- added a dual flash driver (lm3646)
- added a new IR driver (img-ir)
- added an IR scancode decoder for the Sharp protocol
- some improvements at the usbtv driver, to allow its core to be
reused.
- added a new SDR driver (rtl2832u_sdr)
- added a new tuner driver (msi001)
- several improvements at em28xx driver to fix PM support, device
removal and to split the V4L2 specific bits into a separate
sub-driver
- one driver got converted to videobuf2 (s2255drv)
- the e4000 tuner driver now follows an improved binding model
- some fixes at V4L2 compat32 code
- several fixes and enhancements at videobuf2 code
- some cleanups at V4L2 API documentation
- usual driver enhancements, new board additions and misc fixups"
[ NOTE! This merge effective drops commit 4329b93b28 ("of: Reduce
indentation in of_graph_get_next_endpoint").
The of_graph_get_next_endpoint() function was moved and renamed by
commit fd9fdb78a9 ("[media] of: move graph helpers from
drivers/media/v4l2-core to drivers/of"). It was originally called
v4l2_of_get_next_endpoint() and lived in the file
drivers/media/v4l2-core/v4l2-of.c.
In that original location, it was then fixed to support empty port
nodes by commit b9db140c1e ("[media] v4l: of: Support empty port
nodes"), and that commit clashes badly with the dropped "Reduce
intendation" commit. I had to choose one or the other, and decided
that the "Support empty port nodes" commit was more important ]
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
[media] em28xx: fix PCTV 290e LNA oops
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
[media] m88ds3103: fix bug on .set_tone()
[media] saa7134: fix WARN_ON during resume
[media] v4l2-dv-timings: add module name, description, license
[media] videodev2.h: add parenthesis around macro arguments
[media] saa6752hs: depends on CRC32
[media] si4713: fix Kconfig dependencies
[media] Sensoray 2255 uses videobuf2
[media] adv7180: free an interrupt on failure paths in init_device()
[media] e4000: make VIDEO_V4L2 dependency optional
[media] af9033: Don't export functions for the hardware filter
[media] af9035: use af9033 PID filters
[media] af9033: implement PID filter
[media] rtl2832_sdr: do not use dynamic stack allocation
[media] e4000: fix 32-bit build error
[media] em28xx-audio: make sure audio is unmuted on open()
[media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
...
Remove pdata quirks for the displays on boards that are now supported
properly with DT.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Export the DMA register information from the SoC specific data, such
that we can access the registers directly in omap-dma.c, mapping the
register region ourselves as well.
Rather than calculating the DMA channel register in its entirety for
each access, we pre-calculate an offset base address for the allocated
DMA channel and then just use the appropriate register offset.
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The omap_system_dma_plat_info structure is only seven words, it's not
worth the expense of kmalloc()'ing backing store for this only to
release it later. Note that platform_device_add_data() copies the
data anyway. Clean up the initialisation of this structure - we don't
even need code to initialise most of this structure.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This really needs to be there, because otherwise the plat-omap code can
kfree() this data structure, and then re-use the pointer later.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
There's no need for this to be a global variable; move it into the
errata configuration function instead.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
We can do much better with this by using a structure to describe each
register, rather than code.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
dma_stride and dma_common_ch_start are only ever initialised to one
known value at initialisation, and are private to each of these files.
There's no point these being variables at all.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The disable_irq_lch method is never actually used, so there's not much
point it existing; remove it.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Pull networking updates from David Miller:
"Here is my initial pull request for the networking subsystem during
this merge window:
1) Support for ESN in AH (RFC 4302) from Fan Du.
2) Add full kernel doc for ethtool command structures, from Ben
Hutchings.
3) Add BCM7xxx PHY driver, from Florian Fainelli.
4) Export computed TCP rate information in netlink socket dumps, from
Eric Dumazet.
5) Allow IPSEC SA to be dumped partially using a filter, from Nicolas
Dichtel.
6) Convert many drivers to pci_enable_msix_range(), from Alexander
Gordeev.
7) Record SKB timestamps more efficiently, from Eric Dumazet.
8) Switch to microsecond resolution for TCP round trip times, also
from Eric Dumazet.
9) Clean up and fix 6lowpan fragmentation handling by making use of
the existing inet_frag api for it's implementation.
10) Add TX grant mapping to xen-netback driver, from Zoltan Kiss.
11) Auto size SKB lengths when composing netlink messages based upon
past message sizes used, from Eric Dumazet.
12) qdisc dumps can take a long time, add a cond_resched(), From Eric
Dumazet.
13) Sanitize netpoll core and drivers wrt. SKB handling semantics.
Get rid of never-used-in-tree netpoll RX handling. From Eric W
Biederman.
14) Support inter-address-family and namespace changing in VTI tunnel
driver(s). From Steffen Klassert.
15) Add Altera TSE driver, from Vince Bridgers.
16) Optimizing csum_replace2() so that it doesn't adjust the checksum
by checksumming the entire header, from Eric Dumazet.
17) Expand BPF internal implementation for faster interpreting, more
direct translations into JIT'd code, and much cleaner uses of BPF
filtering in non-socket ocntexts. From Daniel Borkmann and Alexei
Starovoitov"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1976 commits)
netpoll: Use skb_irq_freeable to make zap_completion_queue safe.
net: Add a test to see if a skb is freeable in irq context
qlcnic: Fix build failure due to undefined reference to `vxlan_get_rx_port'
net: ptp: move PTP classifier in its own file
net: sxgbe: make "core_ops" static
net: sxgbe: fix logical vs bitwise operation
net: sxgbe: sxgbe_mdio_register() frees the bus
Call efx_set_channels() before efx->type->dimension_resources()
xen-netback: disable rogue vif in kthread context
net/mlx4: Set proper build dependancy with vxlan
be2net: fix build dependency on VxLAN
mac802154: make csma/cca parameters per-wpan
mac802154: allow only one WPAN to be up at any given time
net: filter: minor: fix kdoc in __sk_run_filter
netlink: don't compare the nul-termination in nla_strcmp
can: c_can: Avoid led toggling for every packet.
can: c_can: Simplify TX interrupt cleanup
can: c_can: Store dlc private
can: c_can: Reduce register access
can: c_can: Make the code readable
...
Updates to devicetree core code. This branch contains the following notable changes:
* Add reserved memory binding
* Make struct device_node a kobject and remove legacy /proc/device-tree
* ePAPR conformance fixes
* Update in-kernel DTC copy to version v1.4.0
* Preparation changes for dynamic device tree overlays
* minor bug fixes and documentation changes
The most significant change in this branch is the conversion of struct
device_node to be a kobject that is exposed via sysfs and removal of the
old /proc/device-tree code. This simplifies the device tree handling
code and tightens up the lifecycle on device tree nodes.
[updated: added fix for dangling select PROC_DEVICETREE]
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux
Pull devicetree changes from Grant Likely:
"Updates to devicetree core code. This branch contains the following
notable changes:
- add reserved memory binding
- make struct device_node a kobject and remove legacy
/proc/device-tree
- ePAPR conformance fixes
- update in-kernel DTC copy to version v1.4.0
- preparatory changes for dynamic device tree overlays
- minor bug fixes and documentation changes
The most significant change in this branch is the conversion of struct
device_node to be a kobject that is exposed via sysfs and removal of
the old /proc/device-tree code. This simplifies the device tree
handling code and tightens up the lifecycle on device tree nodes.
[updated: added fix for dangling select PROC_DEVICETREE]"
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (29 commits)
dt: Remove dangling "select PROC_DEVICETREE"
of: Add support for ePAPR "stdout-path" property
of: device_node kobject lifecycle fixes
of: only scan for reserved mem when fdt present
powerpc: add support for reserved memory defined by device tree
arm64: add support for reserved memory defined by device tree
of: add missing major vendors
of: add vendor prefix for SMSC
of: remove /proc/device-tree
of/selftest: Add self tests for manipulation of properties
of: Make device nodes kobjects so they show up in sysfs
arm: add support for reserved memory defined by device tree
drivers: of: add support for custom reserved memory drivers
drivers: of: add initialization code for dynamic reserved memory
drivers: of: add initialization code for static reserved memory
of: document bindings for reserved-memory nodes
Revert "of: fix of_update_property()"
kbuild: dtbs_install: new make target
ARM: mvebu: Allows to get the SoC ID even without PCI enabled
of: Allows to use the PCI translator without the PCI core
...
CONFIG_PROC_DEVICETREE has been removed from the tree. This commit
removes a dangling select of the config symbol.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Rob Herring <rob.herring@linaro.org>
As there is no common panel framework in the kernel, we have OMAP
specific panel drivers. However, the DT data should be generic. This
brings the issue that some other platform could use the same panels, and
would need to create a driver with the same 'compatible' string as the
OMAP driver.
In the long run, we have to get a common panel framework. For the time
being, this patch solves the issue:
At early boot time, we go through the DT nodes looking for the panels
the kernel supports for OMAP. For each found node, the 'compatible'
string is prepended with "omapdss,", i.e. "sony,acx565akm" becomes
"omapdss,sony,acx565akm". The OMAP display drivers all have "omapdss,"
at the beginning of their compatible field.
This allows us to have generic DT data, but OMAP specific display
drivers.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
The OMAP display architecture requires a bunch of platform devices which
are not created via .dts (for now). We also need to pass a few function
pointers and the DSS hardware version from the arch code to omapdss
driver.
This patch adds omapdss_init_of() function, called from board-generic at
init time, which handles those tasks.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
