Upon CPU shutdown and consequent warm-reboot, the hypervisor CPU state
must be re-initialized. This patch implements a CPU PM notifier that
upon warm-boot calls a KVM hook to reinitialize properly the hypervisor
state so that the CPU can be safely resumed.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Pull ARM fixes from Russell King:
"This resolves some further issues with the dma mask changes on ARM
which have been found by TI and others, and also some corner cases
with the updates to the virtual to physical address translations.
Konstantin also found some problems with the unwinder, which now
performs tighter verification that the stack is valid while unwinding"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: fix asm/memory.h build error
ARM: 7917/1: cacheflush: correctly limit range of memory region being flushed
ARM: 7913/1: fix framepointer check in unwind_frame
ARM: 7912/1: check stack pointer in get_wchan
ARM: 7909/1: mm: Call setup_dma_zone() post early_paging_init()
ARM: 7908/1: mm: Fix the arm_dma_limit calculation
ARM: another fix for the DMA mapping checks
Jason Gunthorpe reports a build failure when ARM_PATCH_PHYS_VIRT is
not defined:
In file included from arch/arm/include/asm/page.h:163:0,
from include/linux/mm_types.h:16,
from include/linux/sched.h:24,
from arch/arm/kernel/asm-offsets.c:13:
arch/arm/include/asm/memory.h: In function '__virt_to_phys':
arch/arm/include/asm/memory.h:244:40: error: 'PHYS_OFFSET' undeclared (first use in this function)
arch/arm/include/asm/memory.h:244:40: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/include/asm/memory.h: In function '__phys_to_virt':
arch/arm/include/asm/memory.h:249:13: error: 'PHYS_OFFSET' undeclared (first use in this function)
Fixes: ca5a45c06c ("ARM: mm: use phys_addr_t appropriately in p2v and v2p conversions")
Tested-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The Allwinner A31 uses the ARM GIC as its internal interrupts controller. The
GIC can work on several interrupt triggers, and the A31 was actually setting it
up to use a rising edge as a trigger, while it was actually a level high
trigger, leading to some interrupts that would be completely ignored if the
edge was missed.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org # 3.12+
Signed-off-by: Olof Johansson <olof@lixom.net>
The Allwinner A20 uses the ARM GIC as its internal interrupts controller. The
GIC can work on several interrupt triggers, and the A20 was actually setting it
up to use a rising edge as a trigger, while it was actually a level high
trigger, leading to some interrupts that would be completely ignored if the
edge was missed.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org #3.12+
Signed-off-by: Olof Johansson <olof@lixom.net>
Add a missing break to the switch in tegra_init_fuse() which determines
which SoC the code is running on. This prevents the Tegra30+ fuse
handling code from running on Tegra20.
Fixes: 3bd1ae57f7 ("ARM: tegra: add fuses as device randomness")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Erratum 71 of PXA270M Processor Family Specification Update
(April 19, 2010) explains that watchdog reset time is just
8us insead of 10ms in EMTS.
If SDRAM is not reset, it causes memory bus congestion and
the device hangs. We put SDRAM in selfresh mode before watchdog
reset, removing potential freezes.
Without this patch PXA270-based ICP DAS LP-8x4x hangs after up to 40
reboots. With this patch it has successfully rebooted 500 times.
Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
When converting from tosa-keyboard driver to matrix keyboard, tosa keys
received extra 1 column shift. Replace that with correct values to make
keyboard work again.
Fixes: f69a6548c9 ('[ARM] pxa/tosa: make use of the matrix keypad driver')
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
Due to the cross dependencies between hwmod for automanaged device
information for OMAP and dts node definitions, we can run into scenarios
where the dts node is defined, however it's hwmod entry is yet to be
added. In these cases:
a) omap_device does not register a pm_domain (since it cannot find
hwmod entry).
b) driver does not know about (a), does a pm_runtime_get_sync which
never fails
c) It then tries to do some operation on the device (such as read the
revision register (as part of probe) without clock or adequate OMAP
generic PM operation performed for enabling the module.
This causes a crash such as that reported in:
https://bugzilla.kernel.org/show_bug.cgi?id=66441
When 'ti,hwmod' is provided in dt node, it is expected that the device
will not function without the OMAP's power automanagement. Hence, when
we hit a fail condition (due to hwmod entries not present or other
similar scenario), fail at pm_domain level due to lack of data, provide
enough information for it to be fixed, however, it allows for the driver
to take appropriate measures to prevent crash.
Reported-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Fix a few hwmod code problems involving recovery with bad data and bad
IP block OCP reset handling. Also, fix the hwmod data to enable IP
block OCP reset for the OMAP USBHOST devices on OMAP3+.
Basic build, boot, and PM tests are available here:
http://www.pwsan.com/omap/testlogs/prcm_fixes_a_v3.13-rc/20131209030611/
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Merge tag 'for-v3.13-rc/hwmod-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes
From Paul Walmsley:
ARM: OMAP2+: hwmod code/data: fixes for v3.13-rc
Fix a few hwmod code problems involving recovery with bad data and bad
IP block OCP reset handling. Also, fix the hwmod data to enable IP
block OCP reset for the OMAP USBHOST devices on OMAP3+.
Basic build, boot, and PM tests are available here:
http://www.pwsan.com/omap/testlogs/prcm_fixes_a_v3.13-rc/20131209030611/
* tag 'for-v3.13-rc/hwmod-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
ARM: OMAP2+: hwmod: Fix usage of invalid iclk / oclk when clock node is not present
ARM: OMAP3: hwmod data: Don't prevent RESET of USB Host module
ARM: OMAP2+: hwmod: Fix SOFTRESET logic
ARM: OMAP4+: hwmod data: Don't prevent RESET of USB Host module
Signed-off-by: Kevin Hilman <khilman@linaro.org>
data earlier but are not initializing it from device tree. In addition
to this fix we eventually also be fix the issues in the .dts files
and drivers, but that's too intrusive for the -rc cycle and must be
done later on.
Also a fix for a regression where we now are wrongly trying to initialize
devices on secure omaps like n900 and n9* when booted using device tree.
We need to set aes, sham and timer12 to disabled mode for secure
devices as they are claimed by the firmware running in the secure mode.
And two more legacy booting vs device tree based booting fixes for
am3517 that I did not notice earlier until Nishant Menon reported
these to me few days ago. With these we're good to go having v3.13
working both for legacy booting and device tree based booting, and we
can then go ahed and drop the legacy booting for mach-omap2 for v3.14.
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Merge tag 'omap-for-v3.13/yet-more-dt-regressions-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
A rather big fix for a regression where we have dropped omap4 hwmod
data earlier but are not initializing it from device tree. In addition
to this fix we eventually also be fix the issues in the .dts files
and drivers, but that's too intrusive for the -rc cycle and must be
done later on.
Also a fix for a regression where we now are wrongly trying to initialize
devices on secure omaps like n900 and n9* when booted using device tree.
We need to set aes, sham and timer12 to disabled mode for secure
devices as they are claimed by the firmware running in the secure mode.
And two more legacy booting vs device tree based booting fixes for
am3517 that I did not notice earlier until Nishant Menon reported
these to me few days ago. With these we're good to go having v3.13
working both for legacy booting and device tree based booting, and we
can then go ahed and drop the legacy booting for mach-omap2 for v3.14.
* tag 'omap-for-v3.13/yet-more-dt-regressions-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (494 commits)
ARM: dts: Fix booting for secure omaps
ARM: OMAP2+: Fix the machine entry for am3517
ARM: dts: Fix missing entries for am3517
ARM: OMAP2+: Fix overwriting hwmod data with data from device tree
+Linux 3.13-rc3
The __do_cache_op function operates with a 'chunk' size of one page
but fails to limit the size of the final chunk so as to not exceed
the specified memory region. Fix this.
Cc: <stable@vger.kernel.org>
Reported-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch fixes corner case when (fp + 4) overflows unsigned long,
for example: fp = 0xFFFFFFFF -> fp + 4 == 3.
Cc: <stable@vger.kernel.org>
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
get_wchan() is lockless. Task may wakeup at any time and change its own stack,
thus each next stack frame may be overwritten and filled with random stuff.
/proc/$pid/stack interface had been disabled for non-current tasks, see [1]
But 'wchan' still allows to trigger stack frame unwinding on volatile stack.
This patch fixes oops in unwind_frame() by adding stack pointer validation on
each step (as x86 code do), unwind_frame() already checks frame pointer.
Also I've found another report of this oops on stackoverflow (irony).
Link: http://www.spinics.net/lists/arm-kernel/msg110589.html [1]
Link: http://stackoverflow.com/questions/18479894/unwind-frame-cause-a-kernel-paging-error
Cc: <stable@vger.kernel.org>
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
To get updated __pv_phys_offset, setup_dma_zone() needs to be
called after early_paging_init().
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Current code is using PHYS_OFFSET to calculate the arm_dma_limit which
will lead to wrong calculations in cases where PHYS_OFFSET is updated
runtime.
So fix the code by using __pv_phys_offset instead of PHYS_OFFSET.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Peter reports that OMAP audio broke with the recent fix for these
checks, caused by OMAP audio using a 64-bit DMA mask. We should
allow 64-bit DMA masks even with 32-bit dma_addr_t if we can be sure
the amount of RAM we have won't allow the 32-bit dma_addr_t to
overflow. Unfortunately, the checks to detect overflow were not
correct.
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
commit dc75925d(OMAP: hwmod: Fix the missing braces) introduced
missing braces, however, we just set return result if clk_get fail
and we populate the error pointer in clk pointer and pass it along to
clk_prepare. This is wrong. The intent seems to be retry remaining
clocks if they are available and warn the ones we cant find clks for.
With the current logic, we see the following crash:
omap_hwmod: l3_main: cannot clk_get interface_clk emac_ick
Unable to handle kernel NULL pointer dereference at virtual address 00000032
pgd = c0004000
[00000032] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-00044-gcc9fd5a-dirty #19
task: ce0c3440 ti: ce0c4000 task.ti: ce0c4000
PC is at __clk_prepare+0x10/0x74
LR is at clk_prepare+0x14/0x24
<snip>
[<c044d59c>] (__clk_prepare+0x10/0x74) from [<c044d9b0>] (clk_prepare+0x14/0x24)
[<c044d9b0>] (clk_prepare+0x14/0x24) from [<c077d8c4>] (_init+0x24c/0x3bc)
[<c077d8c4>] (_init+0x24c/0x3bc) from [<c0027328>] (omap_hwmod_for_each+0x34/0x5c)
[<c0027328>] (omap_hwmod_for_each+0x34/0x5c) from [<c077dfa0>] (__omap_hwmod_setup_all+0x24/0x40)
[<c077dfa0>] (__omap_hwmod_setup_all+0x24/0x40) from [<c0008928>] (do_one_initcall+0x38/0x168)
[<c0008928>] (do_one_initcall+0x38/0x168) from [<c0771be8>] (kernel_init_freeable+0xfc/0x1cc)
[<c0771be8>] (kernel_init_freeable+0xfc/0x1cc) from [<c0521064>] (kernel_init+0x8/0x110)
[<c0521064>] (kernel_init+0x8/0x110) from [<c000e568>] (ret_from_fork+0x14/0x2c)
Code: e92d4038 e2504000 01a05004 0a000005 (e5943034)
So, just warn and continue instead of proceeding and crashing, with
missing clock nodes/bad data, we will eventually fail, however we
should now have enough information to identify the culprit.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Unlike what the comment states, errata i660 does not state that we
can't RESET the USB host module. Instead it states that RESET is the
only way to recover from a deadlock situation.
RESET ensures that the module is in a known good state irrespective
of what bootloader does with the module, so it must be done at boot.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM
Fixes: de231388cb ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3")
Signed-off-by: Paul Walmsley <paul@pwsan.com>
In _ocp_softreset(), after _set_softreset() + write_sysconfig(),
the hwmod's sysc_cache will always contain SOFTRESET bit set
so all further writes to sysconfig using this cache will initiate
a repeated SOFTRESET e.g. enable_sysc(). This is true for OMAP3 like
platforms that have RESET_DONE status in the SYSSTATUS register and
so the the SOFTRESET bit in SYSCONFIG is not automatically cleared.
It is not a problem for OMAP4 like platforms that indicate RESET
completion by clearing the SOFTRESET bit in the SYSCONFIG register.
This repeated SOFTRESET is undesired and was the root cause of
USB host issues on OMAP3 platforms when hwmod was allowed to do the
SOFTRESET for the USB Host module.
To fix this we clear the SOFTRESET bit and update the sysconfig
register + sysc_cache using write_sysconfig().
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM
[paul@pwsan.com: renamed _clr_softreset() to _clear_softreset()]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Without this, the USB devices are sometimes not detected on OMAP4 Panda
with u-boot v2013.10.
Unlike what the comment states, errata i660 does not state that we
can't RESET the USB host module. Instead it states that RESET is the
only way to recover from a deadlock situation.
RESET ensures that the module is in a known good state irrespective
of what bootloader does with the module, so it must be done at boot.
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM
Acked-by: Benoît Cousson <bcousson@baylibre.com>
Fixes: af88fa9aa7 ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4")
Signed-off-by: Paul Walmsley <paul@pwsan.com>
The am3517 is wrongly booting as omap3 which means that the am3517
specific devices like Ethernet won't work when booted with device
tree. Now with the new devices defined in am3517.dtsi, let's use
that instead of the omap3.dtsi, and add a separate machine entry
for am3517 so am3517-evm can use it.
Signed-off-by: Nishanth Menon <nm@ti.com>
[tony@atomide.com: updated comments and fixed build without omap3]
Signed-off-by: Tony Lindgren <tony@atomide.com>
On am3517 there are some extra devices compared to omap3.dtsi that
we currently have not defined. Let's fix that by adding am3517.dtsi
file.
Signed-off-by: Tony Lindgren <tony@atomide.com>
We have some device tree properties where the ti,hwmod have multiple
values:
am33xx.dtsi: ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
am4372.dtsi: ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
dra7.dtsi: ti,hwmods = "l3_main_1", "l3_main_2";
omap3.dtsi: ti,hwmods = "mcbsp2", "mcbsp2_sidetone";
omap3.dtsi: ti,hwmods = "mcbsp3", "mcbsp3_sidetone";
omap4.dtsi: ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";
omap5.dtsi: ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";
That's not correct way of doing things in this case because these are
separate devices with their own address space, interrupts, SYSCONFIG
registers and can set their PM states independently.
So they should all be fixed up to be separate devices in the .dts files.
We also have the related data removed for at least omap4 in commit
3b9b10151c (ARM: OMAP4: hwmod data: Clean up the data file), so
that data is wrongly initialized as null data.
So we need to fix two bugs:
1. We are only checking the first entry of the ti,hwmods property
This means that we're only initializing the first hwmods entry
instead of the ones listed in the ti,hwmods property.
2. We are only checking the child nodes, not the nodes themselves
This means that anything listed at OCP level is currently just
ignored and unitialized and at least the omap4 case, with the
legacy data missing from the hwmod.
Fix both of the issues by using an index to the ti,hwmods property
and changing the hwmod lookup function to also check the current node
for ti,hwmods property instead of just the children.
While at it, let's also add some warnings for the bad data so it's
easier to fix.
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
to align platform code to driver's
usage of platform_get_resource_byname()
This is needed to start successfully probing
audio again. The regression was introduced
in v3.13 merge window.
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Merge tag 'davinci-fixes-for-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes
From Sekhar Nori:
This pull request includes a patch
to align platform code to driver's
usage of platform_get_resource_byname()
This is needed to start successfully probing
audio again. The regression was introduced
in v3.13 merge window.
* tag 'davinci-fixes-for-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: Fix McASP mem resource names
Signed-off-by: Olof Johansson <olof@lixom.net>
The ASoC McASP driver looks for the mem resources by name
"mpu" and "dat" regions.
Change/add the needed name for the mem resources so the driver can pick the
correct resource.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
GPIO IRQ support and a fix for some random memory
corruption. The bugs were introduced during v3.13
merge window.
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Merge tag 'davinci-fixes-for-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes
From Sekhar Nori:
This pull request contains a fixe for broken unbanked
GPIO IRQ support and a fix for some random memory
corruption. The bugs were introduced during v3.13
merge window.
* tag 'davinci-fixes-for-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: fix number of resources passed to davinci_gpio_register()
gpio: davinci: fix check for unbanked gpio
Graceful reboot and poweroff via IPMI commands to the management
processor don't work. Power and reset keys are events from the
management processor which are generated via IPC messages. Passing
the keys to userspace does not work as neither acpid nor a desktop
environment are present.
This adds a notifier handler for the IPC messages so the kernel can
handle the key events directly and IPMI graceful shutdown will work.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
Another batch of fixes for ARM SoCs for 3.13. The diffstat is large,
mostly because of:
- Another set of fixes to fix regressions caused by moving OMAP from board
files to DT. Tony thinks this was the last major set of fixes, with
maybe just a few small patches to follow.
- More fixes for Marvell platforms, most dealing with misdescribed PCIe
hardware, i.e. incorrect number of busses on some SoCs, etc. The line
delta adds up due to various ranges moving around when this is fixed.
But there's also:
- Some smaller tweaks to defconfigs to make more boards bootable in my
test setup for better coverage.
- There are also a few other smaller fixes, a short series for at91, a couple
of reverts for ux500, etc.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another batch of fixes for ARM SoCs for 3.13. The diffstat is large,
mostly because of:
- Another set of fixes to fix regressions caused by moving OMAP from
board files to DT. Tony thinks this was the last major set of
fixes, with maybe just a few small patches to follow.
- More fixes for Marvell platforms, most dealing with misdescribed
PCIe hardware, i.e. incorrect number of busses on some SoCs, etc.
The line delta adds up due to various ranges moving around when
this is fixed.
But there's also:
- Some smaller tweaks to defconfigs to make more boards bootable in
my test setup for better coverage.
- There are also a few other smaller fixes, a short series for at91,
a couple of reverts for ux500, etc"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
arm: dts: socfpga: Change some clocks of gate-clk type to perip-clk
arm: socfpga: Enable ARM_TWD for socfpga
ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and MMC_BLOCK_MINORS=16
ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot support
ARM: multi_v7_defconfig: enable network for BeagleBone Black
ARM: dts: Fix the name of supplies for smsc911x shared by OMAP
ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm
ARM: dts: omap3-beagle: Add omap-twl4030 audio support
ARM: dts: omap4-sdp: Fix pin muxing for wl12xx
ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx
ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM
ARM: at91: add usart3 alias to dtsi
ARM: at91: sama5d3: reduce TWI internal clock frequency
mmc: omap: Fix I2C dependency and make driver usable with device tree
mmc: omap: Fix DMA configuration to not rely on device id
ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
ARM: dts: AM33XX IGEP0033: add USB support
ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
ARM: dts: AM33XX BASE0033: add pinmux and user led support
...
Pull timer fixes from Thomas Gleixner:
- timekeeping: Cure a subtle drift issue on GENERIC_TIME_VSYSCALL_OLD
- nohz: Make CONFIG_NO_HZ=n and nohz=off command line option behave the
same way. Fixes a long standing load accounting wreckage.
- clocksource/ARM: Kconfig update to avoid ARM=n wreckage
- clocksource/ARM: Fixlets for the AT91 and SH clocksource/clockevents
- Trivial documentation update and kzalloc conversion from akpms pile
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
nohz: Fix another inconsistency between CONFIG_NO_HZ=n and nohz=off
time: Fix 1ns/tick drift w/ GENERIC_TIME_VSYSCALL_OLD
clocksource: arm_arch_timer: Hide eventstream Kconfig on non-ARM
clocksource: sh_tmu: Add clk_prepare/unprepare support
clocksource: sh_tmu: Release clock when sh_tmu_register() fails
clocksource: sh_mtu2: Add clk_prepare/unprepare support
clocksource: sh_mtu2: Release clock when sh_mtu2_register() fails
ARM: at91: rm9200: switch back to clockevents_config_and_register
tick: Document tick_do_timer_cpu
timer: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)
NOHZ: Check for nohz active instead of nohz enabled
Some of the clocks that were designated gate-clk do not have a gate, so
change those clocks to be of periph-clk type.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Enable MMC/SD on the Broadcom mobile platforms, and increase the block
minors from the default 8 to 16 (since the Broadcom board by default
has root on the 8th partition).
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org # v3.12
This enables a few more options on the sunxi defconfigs such that I can
use nfsroot to boot them (there is no local storage support yet). It
also enables PRINTK_TIME and tmpfs since it's a common distro requirement.
Signed-off-by: Olof Johansson <olof@lixom.net>
From Tony Lindgren:
Few more legacy booting vs device tree booting fixes that people
have noticed while booting things with device tree for things like
omap4 WLAN, smsc911x, and beagle audio. Hopefully this will be it
for the legacy booting vs device tree fixes for this -rc cycle.
* tag 'omap-for-v3.13/more-dt-regressions' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Fix the name of supplies for smsc911x shared by OMAP
ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm
ARM: dts: omap3-beagle: Add omap-twl4030 audio support
ARM: dts: omap4-sdp: Fix pin muxing for wl12xx
ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx
BeagleBone Black uses the TI CPSW ethernet controller, enable it in the
multi_v7_defconfig for testing coverage purposes.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: stable@vger.kernel.org # v3.12
From Nicolas Ferre:
AT91: second round of fixes for 3.13
- reduce IP frequency for I2C on sama5d3
- missing aliases directive for USART3 on 9x5 family
- a PM symbol is missing if !CONFIG_PM
* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM
ARM: at91: add usart3 alias to dtsi
ARM: at91: sama5d3: reduce TWI internal clock frequency
From Jason Cooper, mvebu DT fixes for v3.13:
- mvebu
- PCIe fixes now that we have test devices with more ports.
- fix access to coherency registers
* tag 'mvebu-dt-fixes-3.13' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: re-enable PCIe on Armada 370 DB
ARM: mvebu: use the virtual CPU registers to access coherency registers
ARM: mvebu: fix second and third PCIe unit of Armada XP mv78260
ARM: mvebu: second PCIe unit of Armada XP mv78230 is only x1 capable
From Tony Lindgren:
Some omap related fixes that have come up with people moving to device
tree only based booting for omap2+.
The series contains a handful of fixes for the igep boards as they were
one of the first omap3 boards to jump over completely to device tree
based booting. So these can be considered regressions compared to
booting igep in legacy mode with board files in v3.12.
Also included are few other device tree vs legacy booting regressions:
- yet more missing omap3 .dtsi entries that have showed up booting
various boards with device tree only
- n900 eMMC device tree fix
- fixes for beagle USB EHCI
- two fixes to make omap2420 MMC work
As we're moving omap2+ to be device tree only for v3.14, I'd like to
have v3.13 work equally well for legacy based booting and device tree
based booting. So there will be likely few more device tree related
booting patches trickling in.
This series also includes a regression fix for the omap timer posted
mode that may wrongly stay on from the bootloader for some SoCs.
* tag 'omap-for-v3.13/fixes-against-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
mmc: omap: Fix I2C dependency and make driver usable with device tree
mmc: omap: Fix DMA configuration to not rely on device id
ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
ARM: dts: AM33XX IGEP0033: add USB support
ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
ARM: dts: AM33XX BASE0033: add pinmux and user led support
ARM: dts: AM33XX BASE0033: add pinmux and hdmi node to enable display
ARM: dts: omap3-igep0020: Add pinmuxing for DVI output
ARM: dts: omap3-igep0020: Add pinmux setup for i2c devices
ARM: dts: omap3-igep: Update to use the TI AM/DM37x processor
ARM: dts: omap3-igep: Add support for LBEE1USJYC WiFi connected to SDIO
ARM: dts: omap3-igep: Fix bus-width for mmc1
ARM: OMAP2+: dss-common: change IGEP's DVI DDC i2c bus
ARM: OMAP2+: Disable POSTED mode for errata i103 and i767
ARM: OMAP2+: Fix eMMC on n900 with device tree
ARM: OMAP2+: Add fixed regulator to omap2plus_defconfig
ARM: OMAP2+: Fix more missing data for omap3.dtsi file
Signed-off-by: Olof Johansson <olof@lixom.net>
drivers/net/ethernet/smsc/smsc911x.c is expecting supplies named
"vdd33a" and "vddvario". Currently the shared DTS file provides
"vmmc" and "vmmc_aux", and the supply lookup will fail:
smsc911x 2c000000.ethernet: Looking up vdd33a-supply from device tree
smsc911x 2c000000.ethernet: Looking up vdd33a-supply property in node /ocp/gpmc@6e000000/ethernet@gpmc failed
smsc911x 2c000000.ethernet: Looking up vddvario-supply from device tree
smsc911x 2c000000.ethernet: Looking up vddvario-supply property in node /ocp/gpmc@6e000000/ethernet@gpmc failed
Fix it!
Looks like commmit 6b2978ac40 (ARM: dts: Shared file for omap GPMC
connected smsc911x) made the problem more visible by moving the smc911x
configuration from the omap3-igep0020.dts file to the generic file.
But it seems we've had this problem since commit d72b441501
(ARM: dts: omap3-igep0020: Add SMSC911x LAN chip support).
Tested on OMAP3 Overo platform.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
[tony@atomide.com: updated comments for the commits causing the problem]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit 'cd8abed' "ARM: OMAP2+: Powerdomain: Remove the need to
always have a voltdm associated to a pwrdm" leads to the following
Smatch complaint:
arch/arm/mach-omap2/powerdomain.c:131 _pwrdm_register()
error: we previously assumed 'arch_pwrdm' could be null (see line 105)
So, fix the unchecked dereference of arch_pwrdm.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This adds typical McBSP2-TWL4030 audio description to the legacy
Beagle Board.
Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Mux mode for wlan/sdmmc5 should be MODE0 in pinmux_wl12xx_pins and
Enable Pull up on sdmmc5_clk to detect SDIO card.
This fixes WLAN on omap4-sdp that got broken in v3.10 when we
moved omap4 to boot using device tree only as I did not have
the WL12XX card in my omap4 SDP to test with. The commit that
attempted to make WL12XX working on omap4 SDP was 775d2418f3
(ARM: dts: Fix muxing and regulator for wl12xx on the SDIO
bus for blaze).
Signed-off-by: Balaji T K <balajitk@ti.com>
[tony@atomide.com: updated comments for the regression]
Signed-off-by: Tony Lindgren <tony@atomide.com>
pin mux wl12xx_gpio and wl12xx_pins should be part of omap4_pmx_core
and not omap4_pmx_wkup. So, move wl12xx_* to omap4_pmx_core.
Fix the following error message:
pinctrl-single 4a31e040.pinmux: mux offset out of range: 0x38 (0x38)
pinctrl-single 4a31e040.pinmux: could not add functions for pinmux_wl12xx_pins 56x
SDIO card is not detected after moving pin mux to omap4_pmx_core since
sdmmc5_clk pull is disabled. Enable Pull up on sdmmc5_clk to detect SDIO card.
This fixes a regression where WLAN did not work after a warm reset
or after one up/down cycle that happened when we move omap4 to boot
using device tree only. For reference, the kernel bug is described at:
https://bugzilla.kernel.org/show_bug.cgi?id=63821
Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Balaji T K <balajitk@ti.com>
[tony@atomide.com: update comments to describe the regression]
Signed-off-by: Tony Lindgren <tony@atomide.com>
- Fix lazy flushing in case m2p override fails.
- Fix module compile issues with ARM/Xen
- Add missing call to DMA map page for Xen SWIOTLB for ARM.
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Merge tag 'stable/for-linus-3.13-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
"Fixes to patches that went in this merge window along with a latent
bug:
- Fix lazy flushing in case m2p override fails.
- Fix module compile issues with ARM/Xen
- Add missing call to DMA map page for Xen SWIOTLB for ARM"
* tag 'stable/for-linus-3.13-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/gnttab: leave lazy MMU mode in the case of a m2p override failure
xen/arm: p2m_init and p2m_lock should be static
arm/xen: Export phys_to_mach to fix Xen module link errors
swiotlb-xen: add missing xen_dma_map_page call
If CONFIG_PM is not defined, then arch/arm/mach-at91/pm.c is not
compiled in. This patch creates an inline function that does nothing
if CONFIG_PM is not defined.
Signed-off-by: Brent Taylor <motobud@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Alias was missing for SoC of the at91sam9x5 familly that embed USART3.
Reported-by: Jiri Prchal <jiri.prchal@aksignal.cz>
[b.brezillon@overkiz.com: advised to place changes in at91sam9x5_usart3.dtsi]
Acked-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
With some devices, transfer hangs during I2C frame transmission. This issue
disappears when reducing the internal frequency of the TWI IP. Even if it is
indicated that internal clock max frequency is 66MHz, it seems we have
oversampling on I2C signals making TWI believe that a transfer in progress
is done.
This fix has no impact on the I2C bus frequency.
Cc: <stable@vger.kernel.org> #3.10+
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Pull ARM fixes from Russell King:
"Some ARM fixes, the biggest of which is the fix for the signal return
codes; this came up due to an interaction between the V7M nommu
changes and the BE8 changes. Dave Martin spotted that the kexec
trampoline wasn't being correctly copied (in a way which allows
Thumb-2 to work).
I've also fixed a number of breakages on footbridge platforms as I've
upgraded one of my machines to v3.12... one which had a 1200 day
uptime"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 7907/1: lib: delay-loop: Add align directive to fix BogoMIPS calculation
ARM: 7897/1: kexec: Use the right ISA for relocate_new_kernel
ARM: 7895/1: signal: fix armv7-m build issue in sigreturn_codes.S
ARM: footbridge: fix EBSA285 LEDs
ARM: footbridge: fix VGA initialisation
ARM: fix booting low-vectors machines
ARM: dma-mapping: check DMA mask against available memory
