Add a note about the usage of the identity mapping; we do not support
accesses outside of the identity map region and kernel image while a
CPU is using the identity map. This is because the identity mapping
may overwrite vmalloc space, IO mappings, the vectors pages, etc.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add further comments to the early page table remap code to explain what
the code is doing, why it is doing it, but more importantly to explain
that the code is not architecturally compliant and is squarely in
"UNPREDICTABLE" behaviour territory.
Add a warning and tainting of the kernel too.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
With SCU standby enabled, SCU CLK will be turned off when all processors
are in WFI mode. And the clock will be turned on when any processor
leaves WFI mode.
This behavior should be preferable in terms of power efficiency of
system idle. So let's set the SCU standby bit to enable the support in
function scu_enable().
Cortex-A9 earlier than r2p0 has no standby bit in SCU, so we need to
skip setting the bit for those.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Use macro instead of magic number for SCU enable bit.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Common SHA-1 structures are defined in <crypto/sha.h> for code sharing.
This patch changes SHA-1/ARM glue code to use these structures.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The bus devices created to be parents for other peripherals
were using platform_bus as a parent, not being platform
devices themselves. Remove the references, making them
virtual devices instead.
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A DT bugfix for Nomadik that had an ambigouos double-inversion of a gpio
line, and one MAINTAINER URL update that might as well go in now.
We could hold off until the merge window, but then we'll just have to mark
the DT fix for stable and it just seems like in total causing more work.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM straggler SoC fix from Olof Johansson:
"A DT bugfix for Nomadik that had an ambigouos double-inversion of a
gpio line, and one MAINTAINER URL update that might as well go in now.
We could hold off until the merge window, but then we'll just have to
mark the DT fix for stable and it just seems like in total causing
more work"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: Update Tegra Git URL
ARM: nomadik: fix up double inversion in DT
not boot since 3.6-rc1. The problem is that user_addr_max returned the biggest
available RAM address which makes some copy_from_user variants fail to read
from XIP memory.
Even in the presence of one of the two fixes the other still makes sense, so
both patches are included here.
This problem was the last one preventing efm32 boot to a prompt with mainline.
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Merge tag 'nommu-for-rmk' of git://git.pengutronix.de/git/ukl/linux into devel-stable
Two different fixes for the same problem making some ARM nommu configurations
not boot since 3.6-rc1. The problem is that user_addr_max returned the biggest
available RAM address which makes some copy_from_user variants fail to read
from XIP memory.
Even in the presence of one of the two fixes the other still makes sense, so
both patches are included here.
This problem was the last one preventing efm32 boot to a prompt with mainline.
Fix coding style problems in arch/arm/mach-omap2/control.c.
Signed-off-by: Jeremy Vial <jvial@adeneo-embedded.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
According to the comment “restore_es3: applies to 34xx >= ES3.0" in
"arch/arm/mach-omap2/sleep34xx.S”, omap3_restore_es3 should be used
if the revision of an OMAP34xx is ES3.1.2.
Signed-off-by: Jeremy Vial <jvial@adeneo-embedded.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
This is based on tags/exynos-power because this DT changes
are depending PMU cleanup.
Fixes boot for exynos5260 and exynos5410,
- Since exynos cannot boot without obtaining PMU address via
DT from now on, add PMU node for exynos5260 and exynos5410
For preparing exynos5250-spring,
- move max77686 and cypress,cyapa trackpad from exynos5250-
cros-common to exynos5250-snow DT file
(Note exynos5250-spring is not included in this branch yet)
For exynos3250,
- add TMU node and remove duplicated interrupt-parent
- add missing pinctrl property for uart0 and uart1
For exynos5250-smdk5250 board
- add max77686 pmic interrupt property which is connected to
gpx3
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Merge tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt
Merge "Samsung DT 2nd updates for v3.17" from Kukjin Kim:
This is based on tags/exynos-power because this DT changes
are depending PMU cleanup.
Fixes boot for exynos5260 and exynos5410,
- Since exynos cannot boot without obtaining PMU address via
DT from now on, add PMU node for exynos5260 and exynos5410
For preparing exynos5250-spring,
- move max77686 and cypress,cyapa trackpad from exynos5250-
cros-common to exynos5250-snow DT file
(Note exynos5250-spring is not included in this branch yet)
For exynos3250,
- add TMU node and remove duplicated interrupt-parent
- add missing pinctrl property for uart0 and uart1
For exynos5250-smdk5250 board
- add max77686 pmic interrupt property which is connected to
gpx3
* tag 'samsung-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (28 commits)
ARM: dts: Add missing pinctrl for uart0/1 for exynos3250
ARM: dts: Remove duplicate 'interrput-parent' property for exynos3250
ARM: dts: Add TMU dt node to monitor the temperature for exynos3250
ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250
ARM: dts: cypress,cyapa trackpad is exynos5250-Snow only
ARM: dts: max77686 is exynos5250-snow only
ARM: EXYNOS: Add exynos5260 PMU compatible string to DT match table
ARM: dts: Add PMU DT node for exynos5260 SoC
ARM: EXYNOS: Add support for Exynos5410 PMU
ARM: dts: Add PMU to exynos5410
ARM: dts: Document exynos5410 PMU
ARM: EXYNOS: Move cpufreq and cpuidle device registration to init_machine
ARM: EXYNOS: Refactored code for using PMU address via DT
ARM: EXYNOS: Support cluster power off on exynos5420/5800
ARM: EXYNOS: populate suspend and powered_up callbacks for mcpm
ARM: EXYNOS: do not allow cpuidle registration for exynos5420
cpuidle: big.LITTLE: init driver for exynos5420
cpuidle: big.LITTLE: Add ARCH_EXYNOS entry in config
ARM: EXYNOS: add generic function to calculate cpu number
cpuidle: big.LITTLE: add of_device_id structure
...
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch adds socfpga Ethernet filter attributes for multicast
and unicast filters per Synopsys Ethernet IP configuration chosen
by Altera for the Cyclone 5 and Arria SOC FPGAs.
Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since both ARCH_HI3xxx and ARCH_HIX5HD2 are based on Cortex A9 & they're
using similiar kernel features, make them share the hi3xxx_config.
And add it into multi_v7_defconfig too.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
[olof: also turn on ARCH_HISI in multi_v7]
Signed-off-by: Olof Johansson <olof@lixom.net>
Use CPU_METHOD_OF_DECLARE() instead. And declare smp method in dts file.
Changelog:
v6:
* Use hisilicon,hi3620-smp as enable-method property in Hi3620 dts.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Rename Hisilicon HI3716 to HIX5HD2 and add dependency on ARCH_HIX5HD2.
HiX5HD2 is a SoC with dual Cortex A9 cores for STB market, and original
Hi3xxx SoC is for mobile market.
To avoid confusing the two types of SoCs and also because of different
implementation (SMP, IPs integrated and earlycon config), rename Hi3716
to HIX5HD2 and add ARCH_HIX5HD2.
Signed-off-by: Haifeng Yan <yanhaifeng@gmail.com>
Signed-off-by: Jiancheng Xue <jchxue@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
[olof: fixed description typos]
Signed-off-by: Olof Johansson <olof@lixom.net>
Enable support for the Hisilicon HiX5HD2 SoC. This HiX5HD2 SoC series
support both single and dual Cortex-A9 cores.
Add ARCH_HIX5HD2 to distinguish HiX5HD2 from Hi3xxx.
They are different in implementation such as SMP, IPs integarted and
earlycon configure.
Signed-off-by: Haifeng Yan <yanhaifeng@gmail.com>
Signed-off-by: Jiancheng Xue <jchxue@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Since multiple ARCH configuration will be appended into mach-hisi
directory, add ARCH_HISI as common configuration for different platforms
in mach-hisi.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Merge tag 'v3.17-rockchip-rk3288-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt
Merge "Basic rk3288 usb support" from Heiko Stübner:
Add support for rk3288 ehci controllers.
* tag 'v3.17-rockchip-rk3288-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: Enable USB host0 (EHCI) on rk3288-evb
ARM: dts: add rk3288 ehci usb devices
ARM: dts: Turn on USB host vbus on rk3288-evb
Signed-off-by: Olof Johansson <olof@lixom.net>
This is the top USB port on the evb (the one closest to the Ethernet
connector).
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
rk3288 has two kind of usb controller; this adds the ehci variant for
host0 and hsic.
At the moment we don't add any phys for these controllers, but the
default settings seem to work OK.
There is a hardware problem in ohci controller which make it
unavailable and host0 controller can only support high-speed devices.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
There is no phy driver that works on the Rockchip board for either USB
host port yet. For now just hardcode the vbus signal to be on all the
time which makes both the dwc2 host and the EHCI port work.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Working on sound support I noticed the Apalis T30 Evaluation board
device tree missing the more generic Apalis T30 compatible string.
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Indentation of the clock property used a hodgepodge of tabs and spaces.
Make them more consistent (tabs for indentation followed by spaces for
alignment).
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The GPIO pin connected to card detect was inverted twice: once by
the argument to the GPIO line itself where it was magically marked
as active low by the flag GPIO_ACTIVE_LOW (0x01) in the third cell,
and also marked active low AGAIN by explicitly stating
"cd-inverted" (a deprecated method).
After commit 78f87df2b4
"mmc: mmci: Use the common mmc DT parser" this results in the
line being inverted twice so it was effectively uninverted, while
the old code would not have this effect, instead disregarding the
flag on the GPIO line altogether, which is a bug. I admit the
semantics may be unclear but inverting twice is as good a
definition as any on how this should work.
So fix up the buggy device tree. Use proper #includes so the DTS
is clear and readable.
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
* Add legacy clocks for SCI for SoCs that do not yet have CCF support.
This is to allow timer devices to be enabled using DT and
will be removed after CCF support is added for each SoC.
This is in keeping with the approach taken for enabling
SCI (serial) devices using DT on these SoCs.
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Merge tag 'renesas-clock3-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Merge "Third Round of Renesas ARM Based SoC Clock Updates for v3.17" from Simon
Horman:
Third Round of Renesas ARM Based SoC Clock Updates for v3.17
* Add legacy clocks for SCI for SoCs that do not yet have CCF support.
This is to allow timer devices to be enabled using DT and
will be removed after CCF support is added for each SoC.
This is in keeping with the approach taken for enabling
SCI (serial) devices using DT on these SoCs.
* tag 'renesas-clock3-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: sh73a0: add CMT1 clock support for DT
ARM: shmobile: r8a7740: add CMT1 clock support for DT
ARM: shmobile: r8a73a4: add CMT1 clock support for DT
ARM: shmobile: r8a7740: add TMU clock support for DT
ARM: shmobile: r8a7778: add TMU clock support for DT
Signed-off-by: Olof Johansson <olof@lixom.net>
Exynos has buggy firmware that puts bad data into the memory node. Commit
1c2f87c2 (ARM: Get rid of meminfo) exposed the bug by dropping the artificial
upper bound on the number of memory banks that can be added. Exynos fails to
boot after that commit. This branch fixes it by splitting the early DT parse
function and inserting a fixup hook. Exynos uses the hook to correct the DT
before parsing memory regions.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull Exynos platform DT fix from Grant Likely:
"Device tree Exynos bug fix for v3.16-rc7
This bug fix has been brewing for a while. I hate sending it to you
so late, but I only got confirmation that it solves the problem this
past weekend. The diff looks big for a bug fix, but the majority of
it is only executed in the Exynos quirk case. Unfortunately it
required splitting early_init_dt_scan() in two and adding quirk
handling in the middle of it on ARM.
Exynos has buggy firmware that puts bad data into the memory node.
Commit 1c2f87c225 ("ARM: Get rid of meminfo") exposed the bug by
dropping the artificial upper bound on the number of memory banks that
can be added. Exynos fails to boot after that commit. This branch
fixes it by splitting the early DT parse function and inserting a
fixup hook. Exynos uses the hook to correct the DT before parsing
memory regions"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
arm: Add devicetree fixup machine function
of: Add memory limiting function for flattened devicetrees
of: Split early_init_dt_scan into two parts
often during boot with Ubuntu 14.04 PV guests.
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Merge tag 'stable/for-linus-3.16-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen fix from David Vrabel:
"Fix BUG when trying to expand the grant table. This seems to occur
often during boot with Ubuntu 14.04 PV guests"
* tag 'stable/for-linus-3.16-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: safely map and unmap grant frames when in atomic context
arch_gnttab_map_frames() and arch_gnttab_unmap_frames() are called in
atomic context but were calling alloc_vm_area() which might sleep.
Also, if a driver attempts to allocate a grant ref from an interrupt
and the table needs expanding, then the CPU may already by in lazy MMU
mode and apply_to_page_range() will BUG when it tries to re-enable
lazy MMU mode.
These two functions are only used in PV guests.
Introduce arch_gnttab_init() to allocates the virtual address space in
advance.
Avoid the use of apply_to_page_range() by using saving and using the
array of PTE addresses from the alloc_vm_area() call (which ensures
that the required page tables are pre-allocated).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Commit 1c2f87c225
(ARM: 8025/1: Get rid of meminfo) dropped the upper bound on
the number of memory banks that can be added as there was no
technical need in the kernel. It turns out though, some bootloaders
(specifically the arndale-octa exynos boards) may pass invalid memory
information and rely on the kernel to not parse this data. This is a
bug in the bootloader but we still need to work around this.
Work around this by introducing a dt_fixup function. This function
gets called before the flattened devicetree is scanned for memory
and the like. In this fixup function for exynos, limit the maximum
number of memory regions in the devicetree.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Tested-by: Andreas Färber <afaerber@suse.de>
[glikely: Added a comment and fixed up function name]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This patch add missing pinctrl for uart0/1 for Exynos3250. The gpio pin (
uart0_data, uart0_fctl, uart1_data) is only used for UART IP.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This patch removes duplicat 'interrupt-parent' property for Exynos3250
because exynos3250.dtsi already defined 'interrupt-parent' property
as following:
In arch/arm/boot/dts/exynos3250.dtsi:
compatible = "samsung,exynos3250";
interrupt-parent = <&gic>;
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This patch add TMU (Thermal Management Unit) dt node to monitor the high
temperature for Exynos3250.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The IRQB interrupt pin of MAX77686 PMIC is connected to GPX3[2] pin of
Exynos5250 on the Exynos5250 SMDK board. Specify this connection using
interrupts property for the max77686 pmic node.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Move it from exynos5250-cros-common.dtsi to exynos5250-snow.dts.
Spring does not need it, it uses an Atmel maXTouch instead.
Signed-off-by: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Move it from exynos5250-cros-common.dtsi to exynos5250-snow.dts.
Spring does not need it, it uses an s5m8767 instead.
Signed-off-by: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The platforms selecting NEED_MACH_MEMORY_H defined the start address of
their physical memory in the respective <mach/memory.h>. With
ARM_PATCH_PHYS_VIRT=y (which is quite common today) this is useless
though because the definition isn't used but determined dynamically.
So remove the definitions from all <mach/memory.h> and provide the
Kconfig symbol PHYS_OFFSET with the respective defaults in case
ARM_PATCH_PHYS_VIRT isn't enabled.
This allows to drop the dependency of PHYS_OFFSET on !NEED_MACH_MEMORY_H
which prevents compiling an integrator nommu-kernel.
(CONFIG_PAGE_OFFSET which has "default PHYS_OFFSET if !MMU" expanded to
"0x" because CONFIG_PHYS_OFFSET doesn't exist as INTEGRATOR selects
NEED_MACH_MEMORY_H.)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
A nice small set of bug fixes for arm-soc:
- two incorrect register addresses in DT files on shmobile and hisilicon
- one revert for a regression on omap
- one bug fix for a newly introduced pin controller binding
- one regression fix for the memory controller on omap
- one patch to avoid a harmless WARN_ON
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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 Arnd Bergmann:
"A nice small set of bug fixes for arm-soc:
- two incorrect register addresses in DT files on shmobile and hisilicon
- one revert for a regression on omap
- one bug fix for a newly introduced pin controller binding
- one regression fix for the memory controller on omap
- one patch to avoid a harmless WARN_ON"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: Revert enabling of twl configuration for n900
ARM: dts: fix L2 address in Hi3620
ARM: OMAP2+: gpmc: fix gpmc_hwecc_bch_capable()
pinctrl: dra: dt-bindings: Fix pull enable/disable
ARM: shmobile: r8a7791: Fix SD2CKCR register address
ARM: OMAP2+: l2c: squelch warning dump on power control setting
broken legacy code for omap1 and move things towards
device tree.
These patches were posted a while back, but I did not
realize I was supposed to merge the driver related
parts too. So apologies for a late pull request on
these changes.
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Merge tag 'omap-for-v3.17/mailbox-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers
Merge "late omap mailbox clean-up, driver parts" from Tony Lindgren:
Driver specific omap mailbox cleanup. Mostly to remove
broken legacy code for omap1 and move things towards
device tree.
These patches were posted a while back, but I did not
realize I was supposed to merge the driver related
parts too. So apologies for a late pull request on
these changes.
* tag 'omap-for-v3.17/mailbox-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
mailbox/omap: add a parent structure for every IP instance
mailbox/omap: remove the private mailbox structure
mailbox/omap: consolidate OMAP mailbox driver
mailbox/omap: simplify the fifo assignment by using macros
mailbox/omap: remove omap_mbox_type_t from mailbox ops
mailbox/omap: remove OMAP1 mailbox driver
mailbox/omap: use devm_* interfaces
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
On LPAE, each level 1 (pgd) page table entry maps 1GiB, and the level 2
(pmd) entries map 2MiB.
When the identity mapping is created on LPAE, the pgd pointers are copied
from the swapper_pg_dir. If we find that we need to modify the contents
of a pmd, we allocate a new empty pmd table and insert it into the
appropriate 1GB slot, before then filling it with the identity mapping.
However, if the 1GB slot covers the kernel lowmem mappings, we obliterate
those mappings.
When replacing a PMD, first copy the old PMD contents to the new PMD, so
that we preserve the existing mappings, particularly the mappings of the
kernel itself.
[rewrote commit message and added code comment -- rmk]
Fixes: ae2de10173 ("ARM: LPAE: Add identity mapping support for the 3-level page table format")
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
enabling of twl4030 PM features. Turns out more work is needed
before we can enable twl4030 PM on n900.
I did not notice this earlier as I have my n900 in a rack
and the display did not get enabled for device tree based booting
until for v3.16.
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Merge tag 'omap-for-v3.16/n900-regression' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Merge "omap n900 regression fix for v3.16 rc series" from Tony Lindgren:
Minimal regression fix for n900 display that got broken with
enabling of twl4030 PM features. Turns out more work is needed
before we can enable twl4030 PM on n900.
I did not notice this earlier as I have my n900 in a rack
and the display did not get enabled for device tree based booting
until for v3.16.
* tag 'omap-for-v3.16/n900-regression' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Revert enabling of twl configuration for n900
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
or the next one below it. This is intended to resolve some DSS problems.
Basic build, boot, and PM test results are available here:
http://www.pwsan.com/omap/testlogs/clock-b-v3.17/20140725061121/
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Merge tag 'for-v3.17/omap-clock-b' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.17/soc
Modify OMAP PLL rate rounding function to round to the exact rate requested
or the next one below it. This is intended to resolve some DSS problems.
Basic build, boot, and PM test results are available here:
http://www.pwsan.com/omap/testlogs/clock-b-v3.17/20140725061121/
If init_mm.brk is not section aligned, the LPAE fixup code will miss
updating the final PMD. Fix this by aligning map_end.
Fixes: a77e0c7b27 ("ARM: mm: Recreate kernel mappings in early_paging_init()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The fields are not used by the driver and will be removed from platform
data. Don't set them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
There are no existing users for OMAP1 mailbox driver
in kernel. Commit ab6f775 "Removing dead OMAP_DSP"
has cleaned up all the dead code related to the only
possible user, including the creation of the mailbox
platform device.
Remove this stale driver so that the OMAP mailbox
driver can be simplified and streamlined better for
converting to mailbox framework.
Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit 9188883fd6 (ARM: dts: Enable twl4030 off-idle configuration
for selected omaps) allowed n900 to cut off core voltages during
off-idle. This however caused a regression where twl regulator
vaux1 was not getting enabled for the LCD panel as we are not
requesting it for the panel.
Turns out quite a few devices on n900 are using vaux1, and we need
to either stop idling it, or add proper regulator_get calls for all
users. But until we have a proper solution implemented and tested,
let's just disable the twl off-idle configuration for now for n900.
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Fixes: 9188883fd6 (ARM: dts: Enable twl4030 off-idle configuration for selected omaps)
Signed-off-by: Tony Lindgren <tony@atomide.com>
The DMA engine is enabled for all DTs that derive from zynq-7000.dtsi.
There is no need to override the 'status' property in board DTs.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Exynos initialisation code now relies on obtaining the PMU address via
DT, so add the exynos5260 PMU compatible string to DT match table.
Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Exynos initialization code now relies on obtaining the PMU address,
so add the new 5410 value to the list of compatible string matches.
This unbreaks booting on 5410 based boards.
Fixes: fce9e5bb25 ("ARM: EXYNOS: Add support for mapping PMU base
address via DT")
Signed-off-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Exynos initialization code now relies on obtaining the PMU address,
so prepare a PMU node for Exynos5410.
Fixes: fce9e5bb25 ("ARM: EXYNOS: Add support for mapping PMU base
address via DT")
Signed-off-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Pull ARM AES crypto fixes from Herbert Xu:
"This push fixes a regression on ARM where odd-sized blocks supplied to
AES may cause crashes"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: arm-aes - fix encryption of unaligned data
crypto: arm64-aes - fix encryption of unaligned data
Update the bindings for touchscreen size.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Update the bindings for touchscreen size.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- BCM Mobile SMP support
- BRCM STB platform support
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Merge tag 'for-3.17/bcm-soc' of git://github.com/broadcom/mach-bcm into next/soc
Merge "ARM: mach-bcm: soc updates for 3.17" from Matt Porter:
- BCM Mobile SMP support
- BRCM STB platform support
* tag 'for-3.17/bcm-soc' of git://github.com/broadcom/mach-bcm:
MAINTAINERS: add entry for Broadcom ARM STB architecture
ARM: brcmstb: select GISB arbiter and interrupt drivers
ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
ARM: configs: enable SMP in bcm_defconfig
ARM: add SMP support for Broadcom mobile SoCs
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- BCM Mobile SMP support
- BRCM STB platform support
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Merge tag 'for-3.17/bcm-dt' of git://github.com/broadcom/mach-bcm into next/dt
Merge "ARM: mach-bcm: dt updatees for 3.17" from Matt Porter:
- BCM Mobile SMP support
- BRCM STB platform support
* tag 'for-3.17/bcm-dt' of git://github.com/broadcom/mach-bcm:
ARM: brcmstb: dts: add a reference DTS for Broadcom 7445
ARM: brcmstb: gic: add compatible string for Broadcom Brahma15
ARM: brcmstb: add misc. DT bindings for brcmstb
ARM: brcmstb: add CPU binding for Broadcom Brahma15
ARM: dts: enable SMP support for bcm21664
ARM: dts: enable SMP support for bcm28155
devicetree: bindings: document Broadcom CPU enable method
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'v3.16-rc6' into next/dt
Update to Linux 3.16-rc6 as a dependency for the broadcom changes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Armada XP
- New board, Lenovo ix4-300d NAS
- Add Lenovo to vendor-prefixes
- Dove
- Add LCD controllers
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Merge tag 'mvebu-dt-3.17-4' of git://git.infradead.org/linux-mvebu into next/dt
Merge "mvebu DT changes for v3.17 (round 4)" from Jason Cooper"
- Armada XP
- New board, Lenovo ix4-300d NAS
- Add Lenovo to vendor-prefixes
- Dove
- Add LCD controllers
* tag 'mvebu-dt-3.17-4' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: Add dts definition for Lenovo Iomega ix4-300d NAS
of: Add Lenovo Group Ltd. to the vendor-prefixes list.
ARM: dts: dove: add DT LCD controllers
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add a sample DTS which will allow bootup of a board populated
with the BCM7445 chip.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
Fix the same alignment bug as in arm64 - we need to pass residue
unprocessed bytes as the last argument to blkcipher_walk_done.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org # 3.13+
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The BCM7xxx series of Broadcom SoCs are used primarily in set-top boxes.
This patch adds machine support for the ARM-based Broadcom SoCs.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Matt Porter <mporter@linaro.org>
Also explicitly set CONFIG_NR_CPUS to 2, limiting it to the most we
currently need.
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
This patch adds SMP support for BCM281XX and BCM21664 family SoCs.
This feature is controlled with a distinct config option such that
an SMP-enabled multi-v7 binary can be configured to run these SoCs
in uniprocessor mode. Since this SMP functionality is used for
multiple Broadcom mobile chip families the config option is called
ARCH_BCM_MOBILE_SMP (for lack of a better name).
On SoCs of this type, the secondary core is not held in reset on
power-on. Instead it loops in a ROM-based holding pen. To release
it, one must write into a special register a jump address whose
low-order bits have been replaced with a secondary core's id, then
trigger an event with SEV. On receipt of an event, the ROM code
will examine the register's contents, and if the low-order bits
match its cpu id, it will clear them and write the value back to the
register just prior to jumping to the address specified.
The location of the special register is defined in the device tree
using a "secondary-boot-reg" property in a node whose "enable-method"
matches.
Derived from code originally provided by Ray Jui <rjui@broadcom.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
Define nodes representing the two Cortex A9 CPUs in a bcm21644 SoC.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
Define nodes representing the two Cortex A9 CPUs in a bcm28155 SoC.
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
In preparation to make the check_extension function available to VM scope
we add a struct kvm * argument to the function header and rename the function
accordingly. It will still be called from the /dev/kvm fd, but with a NULL
argument for struct kvm *.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
- convert to new clock driver
- bring structure in line with recent rk3288 comments
(no soc-nodes, using phandles when adding changes, sorted by address)
- i2c, board-pmic and pwm nodes nodes
- sd card slot and ir receiver on radxa rock
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Merge tag 'v3.17-rockchip-rk3xxx-dts' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt
Merge "ARM: dts: changes for existing rockchip boards" from Heiko Stuebner:
Collected changes for existing Rockchip boards
- convert to new clock driver
- bring structure in line with recent rk3288 comments
(no soc-nodes, using phandles when adding changes, sorted by address)
- i2c, board-pmic and pwm nodes nodes
- sd card slot and ir receiver on radxa rock
* tag 'v3.17-rockchip-rk3xxx-dts' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rk3188-radxarock: add GPIO IR receiver node
ARM: dts: rockchip: add pwm nodes
ARM: dts: rockchip: add both clocks to uart nodes
ARM: dts: rk3188-radxarock: enable sd-card slot
ARM: dts: add i2c and regulator nodes to rk3188-radxarock
ARM: dts: rockchip: add tps65910 regulator for bqcurie2
ARM: dts: add rk3066 and rk3188 i2c device nodes and pinctrl settings
ARM: dts: rockchip: oder nodes by register address
ARM: dts: rockchip: remove address from pinctrl nodes
ARM: dts: uses handles to reference nodes for changes
ARM: dts: rockchip: add handles for shared nodes that don't have one yet
ARM: dts: rockchip: remove soc subnodes
arm: dts: rockchip: remove obsolete clock gate definitions
ARM: dts: rockchip: move oscillator input clock into main dtsi
ARM: dts: rockchip: add cru nodes and update device clocks to use it
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This is a dependency for the rk3288 DT updates, the branch should
first get merged through Mike's clk git.
* 'clk-rockchip' of git://git.linaro.org/people/mike.turquette/linux:
ARM: rockchip: Select ARCH_HAS_RESET_CONTROLLER
clk: rockchip: add clock controller for rk3288
dt-bindings: add documentation for rk3288 cru
clk: rockchip: add clock driver for rk3188 and rk3066 clocks
dt-bindings: add documentation for rk3188 clock and reset unit
clk: rockchip: add reset controller
clk: rockchip: add clock type for pll clocks and pll used on rk3066
clk: rockchip: add basic infrastructure for clock branches
clk: composite: improve rate_hw sanity check logic
clk: composite: allow read-only clocks
clk: composite: support determine_rate using rate_ops->round_rate + mux_ops->set_parent
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This is a dependency for the rk3288 DT updates, the branch should
first get merged through Mike's clk git.
* 'clk-rockchip' of git://git.linaro.org/people/mike.turquette/linux:
ARM: rockchip: Select ARCH_HAS_RESET_CONTROLLER
clk: rockchip: add clock controller for rk3288
dt-bindings: add documentation for rk3288 cru
clk: rockchip: add clock driver for rk3188 and rk3066 clocks
dt-bindings: add documentation for rk3188 clock and reset unit
clk: rockchip: add reset controller
clk: rockchip: add clock type for pll clocks and pll used on rk3066
clk: rockchip: add basic infrastructure for clock branches
clk: composite: improve rate_hw sanity check logic
clk: composite: allow read-only clocks
clk: composite: support determine_rate using rate_ops->round_rate + mux_ops->set_parent
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
In some cases it is desired to move a channel to a specific event queue.
Such a use case is audio, where it is preferred that it is served with
highest priority compared to other DMA clients.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Use the lowest priority queue as default for clients.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
As per example from the regulator subsystem: put all defines and
functions related to registering board info for GPIO descriptors
into a separate <linux/gpio/machine.h> header.
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
dtc was giving warnings for missing #address-cells and #size-cells for
the new sun6i-a31-hummingbird.dts, which has a i2c-based rtc device.
This patch adds the properties for all i2c controller nodes for sun6i.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This adds a device tree node for the infrared receiver connected to a
GPIO pin on the Radxa Rock.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This adds the necessary nodex and pinctrl settings for the Rockchip PWM-driver.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Modified to use the new clock defines and added rk3066 pins.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Use the newly ammended dw_8250 clock binding to define both the baudclk as
well as the pclk supplying the ip.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This enables the 2nd i2c bus and adds the act8846 pmic as device.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The Curie2 uses a tps659102 as its main pmic, so add the i2c1 and tps65910
node as well as define the used voltages and regulator-names according to
the schematics.
Also fix the supply of the sd0 regulator, as it is supplied by the vio reg.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The pincontroller uses the GRF and PMU syscons nowadays, so should not
contain an address in its device node.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Some nodes that are changed in the dtsi hierarchy do not have handles yet.
As it was suggested in the rk3288 submission to do subsequent nodes changes
through such handle-references, add the missing ones.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Comments received from the rk3288 submission indicated that a generic subnode
to group soc components should not be used.
So to keep all rockchip devicetree files similar, remove it from rk3066 and rk3188.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The clock and reset unit is now provided by the rk3188-cru clock driver and thus
the old style definitions of the gate clocks can go away.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
The clock definitions get a lot shorter due to the soc clocks being handled by
rk3188-cru and only the input clock remains. These can now simply live
in the main rk3xxx.dtsi without affecting readability.
At the same time, rename the node to oscillator, adding a clock-output-names
property to match how the rk3288 handles this.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
This adds a node for the clock and reset unit on rk3188 and rk3066 SoCs and
also updates the device nodes retrieve their clocks from there, instead of
the previous gate clock nodes.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
- Armada XP
- Fix return value check in pmsu code
- Document URLs for new public datasheets (Thanks, Marvell & free-electrons!)
- Armada 370/38x
- Add cpuidle support
- mvebu
- Fix build when no platforms are selected
- Update EBU SoC status in docs
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Merge tag 'mvebu-soc-3.17-4' of git://git.infradead.org/linux-mvebu into next/soc
Merge "mvebu SoC changes for v3.17 (round 4)" from Jason Cooper:
- Armada XP
- Fix return value check in pmsu code
- Document URLs for new public datasheets (Thanks, Marvell & free-electrons!)
- Armada 370/38x
- Add cpuidle support
- mvebu
- Fix build when no platforms are selected
- Update EBU SoC status in docs
* tag 'mvebu-soc-3.17-4' of git://git.infradead.org/linux-mvebu: (21 commits)
Documentation: arm: misc updates to Marvell EBU SoC status
Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC
ARM: mvebu: fix build without platforms selected
ARM: mvebu: add cpuidle support for Armada 38x
ARM: mvebu: add cpuidle support for Armada 370
cpuidle: mvebu: add Armada 38x support
cpuidle: mvebu: add Armada 370 support
cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7
ARM: mvebu: export the SCU address
ARM: mvebu: make the snoop disabling optional in mvebu_v7_pmsu_idle_prepare()
ARM: mvebu: use a local variable to store the resume address
ARM: mvebu: make the cpuidle initialization more generic
ARM: mvebu: rename the armada_370_xp symbols to mvebu_v7 in pmsu.c
ARM: mvebu: use the common function for Armada 375 SMP workaround
ARM: mvebu: add a common function for the boot address work around
ARM: mvebu: sort the #include of pmsu.c in alphabetic order
ARM: mvebu: split again armada_370_xp_pmsu_idle_enter() in PMSU code
ARM: mvebu: fix return value check in armada_xp_pmsu_cpufreq_init()
clk: mvebu: extend clk-cpu for dynamic frequency scaling
ARM: mvebu: extend PMSU code to support dynamic frequency scaling
...
Conflicts:
arch/arm/mach-mvebu/Kconfig
drivers/cpuidle/cpuidle-armada-370-xp.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This resolves a nontrivial conflict against a bug fix
in another branch.
Conflicts:
arch/arm/mach-exynos/pm.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'v3.17-rockchip-smp-hotplug' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/soc
Merge "CPU-Hotplug support for RK3066 and RK3188" from Heiko Stuebner:
* tag 'v3.17-rockchip-smp-hotplug' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: rockchip: Add cpu hotplug support for RK3XXX SoCs
ARM: rockchip: select ARMv7 compiler flags for platsmp.o
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This allows the "make dtbs" target to work.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
There exist 2 variants using either the act8846 or rk808 as pmic, while the
rest of the board stays the same.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Node definitions shared by all rk3288 based boards.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The new rk3288 needs a bigger gpio space, as it has 9 gpio banks.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The uarts on rk3288 are still compatible with the dw_8250, but located
at a different position and need DEBUG_UART_8250_WORD enabled.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The debug uart settings from the DEBUG_RK3X_UART options are usable on
all Rockchip SoCs from the rk30xx and rk31xx series but not on the
new rk3288 SoCs. Thus clarify their use to prevent confusion.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Fix the address of L2 controler register in hi3620 SoC.
This has been wrong from the point that the file was merged
in v3.14.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- support common clock framework for s5pv210 clock
- add generic PHY driver on s5pv210 to support it via DT
- add dt support for s5pv210-goni, smdkc110, smdkv210 and torbreck boards
- remove board files from mach-s5pv210 and unused codes
- enable multiplatform for s5pv210
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Merge tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Samsung S5PV210 DT support for v3.17" from Kukjin Kim:
- support common clock framework for s5pv210 clock
- add generic PHY driver on s5pv210 to support it via DT
- add dt support for s5pv210-goni, smdkc110, smdkv210 and torbreck boards
- remove board files from mach-s5pv210 and unused codes
- enable multiplatform for s5pv210
* tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
clk: samsung: s5pv210: Remove legacy board support
ARM: SAMSUNG: Remove remaining legacy code
gpio: samsung: Remove legacy support of S5PV210
ARM: S5PV210: Enable multi-platform build support
cpufreq: s5pv210: Make the driver multiplatform aware
ARM: S5PV210: Register cpufreq platform device
ARM: S5PV210: move debug-macro.S into the common space
ARM: S5PV210: Untie PM support from legacy code
ARM: S5PV210: Remove support for board files
ARM: dts: Add Device tree for s5pc110/s5pv210 boards
ARM: dts: Add Device tree for s5pv210 SoC
ARM: S5PV210: Add board file for boot using Device Tree
phy: Add support for S5PV210 to the Exynos USB 2.0 PHY driver
clk: samsung: Add S5PV210 Audio Subsystem clock driver
ARM: SAMSUNG: Remove legacy clock code
serial: samsung: Remove support for legacy clock code
cpufreq: s3c24xx: Remove some dead code
ARM: S5PV210: Migrate clock handling to Common Clock Framework
clk: samsung: Add clock driver for S5PV210 and compatible SoCs
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- support cluster power off on exynos5420 and exynos5800
to save power.
- use PMU address via DT to remove PMU static mapping
- remove exynos_cpuidle_init() and exynos_cpufreq_init()
* Note that this is including tags/samsung-cleanup and
tags/exynos-cpuidle are already merged into arm-soc.
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Merge tag 'power-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Samsung power management related updates for v3.17" from Kukjin Kim
- support cluster power off on exynos5420 and exynos5800
to save power.
- use PMU address via DT to remove PMU static mapping
- remove exynos_cpuidle_init() and exynos_cpufreq_init()
* Note that this is including tags/samsung-cleanup and
tags/exynos-cpuidle are already merged into arm-soc.
* tag 'power-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Move cpufreq and cpuidle device registration to init_machine
ARM: EXYNOS: Refactored code for using PMU address via DT
ARM: EXYNOS: Support cluster power off on exynos5420/5800
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge branches 'samsung/cleanup' and 'samsung/s5p-cleanup-v2', tag 'v3.16-rc6' into next/soc
The following samsung branches are based on these cleanups,
which are already in mainline before this branch gets pulled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
rc series. Mostly a fix for GPMC allocation and omap5 ABB
(Adaptive Body Bias).
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Merge tag 'omap-for-v3.17/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical
Merge non-urgent omap fixes from Tony Lindgren:
Fixes for omaps that were not considered urgent enough for the
rc series. Mostly a fix for GPMC allocation and omap5 ABB
(Adaptive Body Bias).
* tag 'omap-for-v3.17/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: omap2+: gpmc-nand: Use dynamic platform_device_alloc()
omap16xx: Removes fixme no longer needed in ocpi_enable()
ARM: dts: OMAP5: Add device nodes for ABB
ARM: omap2+: usb-tusb6010.c: Cleaning up variable is set more than once
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Add device tree and hwmod data for various devices
for new SoCs
- Remove legacy mailbox hwmod data that's no longer
needed for SoCs that are DT only. Note that this may
cause a minor merge conflict in mach-omap2/devices.c
with omap_init_mbox() and omap_init_hdmi_audio(), both
are legacy code that is getting removed
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Merge tag 'omap-for-v3.17/soc-new' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
Merge "SoC related changes for omaps for v3.17 merge window"
from Tony Lindgren:
- Add device tree and hwmod data for various devices
for new SoCs
- Remove legacy mailbox hwmod data that's no longer
needed for SoCs that are DT only. Note that this may
cause a minor merge conflict in mach-omap2/devices.c
with omap_init_mbox() and omap_init_hdmi_audio(), both
are legacy code that is getting removed
* tag 'omap-for-v3.17/soc-new' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: DRA7: hwmod: Add data for RTC
arm: dra7xx: Add hwmod data for MDIO and CPSW
arm: dra7xx: Add hwmod data for pcie1 and pcie2 subsystems
arm: dra7xx: Add hwmod data for pcie1 phy and pcie2 phy
ARM: DRA7: hwmod: Add OCP2SCP3 module
ARM: DRA7: hwmod: remove interrupts for DMA
ARM: OMAP2+: DMA: remove requirement of irq for platform-dma driver
ARM: AM33xx: hwmod_data: Remove legacy mailbox addrs
ARM: OMAP4: hwmod_data: Remove legacy mailbox addrs
ARM: OMAP2: hwmod_data: Remove legacy mailbox data and addrs
ARM: OMAP2+: Avoid mailbox legacy device creation for DT-boot
ARM: DRA7: hwmod_data: Add mailbox hwmod data
ARM: dts: DRA7: Add mailbox nodes
ARM: dts: AM4372: Correct mailbox node data
ARM: dts: AM33xx: Add mailbox node
ARM: dts: OMAP4: Add mailbox node
ARM: dts: OMAP2+: Add mailbox fifo and user information
ARM: AM43xx: hwmod: add DSS hwmod data
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This patch extends nodes of PMU system controller on Exynos4210, 4x12,
5250 and 5420 SoCs with newly defined properties used by Exynos CLKOUT
driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Use BUG_ON(x) rather than if(x) BUG();
The semantic patch that fixes this problem is as follows:
// <smpl>
@@ identifier x; @@
-if (x) BUG();
+BUG_ON(x);
// </smpl>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Change the behavior of omap2_dpll_round_rate() to round to either the
exact rate requested, or the next lowest rate that the clock is able to
provide.
This is not an ideal fix, but is intended to provide a relatively safe
way for drivers to set PLL rates, until a better solution can be
implemented.
For the time being, omap3_noncore_dpll_set_rate() is still allowed to
set its rate to something other than what the caller requested; but will
warn when this occurs.
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This allows to boot the Adapteva Parallella board to serial console.
Cc: Andreas Olofsson <andreas@adapteva.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
this new compatibility string prevents macb/gem driver from using the
scatter-gather and gso features on sama5d3x boards.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch attaches selftest's device tree data (required by /drivers/of/selftest.c)
dynamically into live device tree. First, it links selftest device tree data into the
kernel image and then iterates over all the nodes and attaches them into the live tree.
Once the testcases are complete, it removes the data attached.
This patch will remove the manual process of addition and removal of selftest device
tree data into the machine's dts file.
Tested successfully with current selftest's testcases.
Signed-off-by: Gaurav Minocha <gaurav.minocha.os@gmail.com>
[glikely: Removed ability to build as a module and fixed no-devicetree bug]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Add the DT fragment for the Marvell Dove LCD controllers.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/E1XAKGS-0004WE-8h@rmk-PC.arm.linux.org.uk
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
When building a multiplatform kernel that enables 'ARCH_MVEBU' but
none of the individual options under it, we get this link error:
arch/arm/mach-mvebu/built-in.o: In function `mvebu_armada375_smp_wa_init':
:(.text+0x190): undefined reference to `mvebu_setup_boot_addr_wa'
The best solution seems to be to ensure that in this configuration,
we don't actually build any of the mvebu code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/7339332.ZE2mWIdyDh@wuerfel
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
New functionality
* A new modifier to indicate that a rotation is relative to either
true or magnetic north. This is to be used by some magnetometers
that provide data in this way.
* hid magnetometer now supports output rotations from various variants on
North
* HMC5843 driver converted to regmap and reworked to allow easy support
of other similar devices. Support for HMC5983 added via both i2c and SPI.
* Rework of Exynos driver to simplify extension to support more devices.
* Addition of support for the Exynos3250 ADC (which requires an additional
clock) Support for quite a few more devices on its way.
Cleanups
* ad7997 - a number of cleanups and tweaks to how the events are controlled
to make it more intuitive.
* kxcjk - cleanups and minor fixes for this new driver.
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Merge tag 'iio-for-3.17d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Fourth round of IIO new drivers, functionality and cleanups for the 3.17 cycle
New functionality
* A new modifier to indicate that a rotation is relative to either
true or magnetic north. This is to be used by some magnetometers
that provide data in this way.
* hid magnetometer now supports output rotations from various variants on
North
* HMC5843 driver converted to regmap and reworked to allow easy support
of other similar devices. Support for HMC5983 added via both i2c and SPI.
* Rework of Exynos driver to simplify extension to support more devices.
* Addition of support for the Exynos3250 ADC (which requires an additional
clock) Support for quite a few more devices on its way.
Cleanups
* ad7997 - a number of cleanups and tweaks to how the events are controlled
to make it more intuitive.
* kxcjk - cleanups and minor fixes for this new driver.
Broadcom Brahma-B15 (r0p0..r0p2) is also affected by Cortex-A15
erratum 798181, so enable the workaround for Brahma-B15.
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Acked-by: Marc Carino <marc.ceeeee@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This fixes the following warning:
warning: (ARCH_MULTIPLATFORM && ARCH_INTEGRATOR && ARCH_SHMOBILE_LEGACY) selects ARM_PATCH_PHYS_VIRT which has unmet direct dependencies (!XIP_KERNEL && MMU && (!ARCH_REALVIEW || !SPARSEMEM))
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Perform any CPU-specific initialization required on the
Broadcom Brahma-15 core.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
For LPAE, we have the following means for encoding writable or dirty
ptes:
L_PTE_DIRTY L_PTE_RDONLY
!pte_dirty && !pte_write 0 1
!pte_dirty && pte_write 0 1
pte_dirty && !pte_write 1 1
pte_dirty && pte_write 1 0
So we can't distinguish between writeable clean ptes and read only
ptes. This can cause problems with ptes being incorrectly flagged as
read only when they are writeable but not dirty.
This patch renumbers L_PTE_RDONLY from AP[2] to a software bit #58,
and adds additional logic to set AP[2] whenever the pte is read only
or not dirty. That way we can distinguish between clean writeable ptes
and read only ptes.
HugeTLB pages will use this new logic automatically.
We need to add some logic to Transparent HugePages to ensure that they
correctly interpret the revised pgprot permissions (L_PTE_RDONLY has
moved and no longer matches PMD_SECT_AP2). In the process of revising
THP, the names of the PMD software bits have been prefixed with L_ to
make them easier to distinguish from their hardware bit counterparts.
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Long descriptors on ARM are 64 bits, and some pte functions such as
pte_dirty return a bitwise-and of a flag with the pte value. If the
flag to be tested resides in the upper 32 bits of the pte, then we run
into the danger of the result being dropped if downcast.
For example:
gather_stats(page, md, pte_dirty(*pte), 1);
where pte_dirty(*pte) is downcast to an int.
This patch introduces a new macro pte_isset which performs the bitwise
and, then performs a double logical invert (where needed) to ensure
predictable downcasting. The logical inverse pte_isclear is also
introduced.
Equivalent pmd functions for Transparent HugePages have also been
added.
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
- L2 cache regression fix for a warning about trying to access
a read-only register
- GPMC ECC software fallback regression fix for omap3
- Fix for dra7 pinctrl pull-up direction that causes signal issues
for anybody trying to use the internal pull up or down
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Merge tag 'omap-for-v3.16/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Merge "Two regression fixes for omaps and one fix for device
signaling" from Tony Lindgren:
- L2 cache regression fix for a warning about trying to access
a read-only register
- GPMC ECC software fallback regression fix for omap3
- Fix for dra7 pinctrl pull-up direction that causes signal issues
for anybody trying to use the internal pull up or down
* tag 'omap-for-v3.16/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: gpmc: fix gpmc_hwecc_bch_capable()
pinctrl: dra: dt-bindings: Fix pull enable/disable
ARM: OMAP2+: l2c: squelch warning dump on power control setting
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Unlike the Armada XP and the Armada 370, this SoC uses a Cortex A9
core. Consequently, the procedure to enter the idle state is
different: interaction with the SCU, not disabling snooping, etc.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-16-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit introduces the cpuidle support for Armada 370. The main
difference compared to the already supported Armada XP is that the
Armada 370 has an issue caused by "a slow exit process from the deep
idle state due to heavy L1/L2 cache cleanup operations performed by
the BootROM software" (cf errata GL-BootROM-10).
To work around this issue, we replace the restart code of the BootROM
by some custom code located in an internal SRAM. For this purpose, we
use the common function mvebu_boot_addr_wa() introduced in the commit
"ARM: mvebu: Add a common function for the boot address work around".
The message in case of failure to suspend the system was switched from
the warn level to the debug level. Indeed due to the "slow exit
process from the deep idle state" in Armada 370, this situation
happens quite often. Using the debug level avoids spamming the kernel
logs, but still allows to enable it if needed.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-15-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This driver will be able to manage the cpuidle for more SoCs than just
Armada 370 and XP. It will also support Armada 38x and potentially
other SoC of the Marvell Armada EBU family. To take this into account,
this patch renames the driver and its symbols.
It also changes the driver name from cpuidle-armada-370-xp to
cpuidle-armada-xp, because separate platform drivers will be
registered for the other SoC types. This change must be done
simultaneously in the cpuidle driver and in the PMSU code in order to
remain bisectable.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lkml.kernel.org/r/1406120453-29291-12-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The SCU address will be needed in other files than board-v7.c,
especially in pmsu.c for cpuidle related activities. So this patch
adds a function that allows to retrieve the virtual address at which
the SCU has been mapped.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-10-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
On some mvebu v7 SoCs (the ones using a Cortex-A9 core and not a PJ4B
core), the snoop disabling feature does not exist as the hardware
coherency is handled in a different way. Therefore, in preparation to
the introduction of the cpuidle support for those SoCs, this commit
modifies the mvebu_v7_psmu_idle_prepare() function to take several
flags, which allow to decide whether snooping should be disabled, and
whether we should use the deep idle mode or not.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-9-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The resume address used by the cpuidle code will not always be the
same depending on the SoC. Using a local variable to store the resume
address allows to keep the same function for the PM notifier but with
a different address. This address will be set during the
initialization of the cpuidle logic in pmsu.c.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-8-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
In preparation to the addition of the cpuidle support for more SoCs,
this patch moves the Armada XP specific initialization to a separate
function.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-7-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Most of the function related to the PMSU are not specific to the
Armada 370 or Armada XP SoCs. They can also be used for most of the
other mvebu ARMv7 SoCs, and will actually be used to support cpuidle
on Armada 38x.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-6-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Use the common function mvebu_setup_boot_addr_wa() introduced in the
commit "ARM: mvebu: Add a common function for the boot address work
around" instead of the dedicated version for Armada 375.
This commit also moves the workaround in the system-controller
module. Indeed the workaround on 375 is really related to setting the
boot address which is done by the system controller.
As a bonus we no longer use an harcoded value to access the register
storing the boot address.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-5-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
On some of the mvebu SoCs and due to internal BootROM issue, the CPU
initial jump code must be placed in the SRAM memory of the SoC. In
order to achieve this, we have to unmap the BootROM and at some
specific location where the BootROM was placed, create a dedicated
MBus window for the SRAM. This SRAM is initialized with a few
instructions of code that allows to jump to the real secondary CPU
boot address. The SRAM used is the Crypto engine one.
This work around is currently needed for booting SMP on Armada 375 Z1
and will be needed for cpuidle support on Armada 370. Instead of
duplicating the same code, this commit introduces a common function to
handle it: mvebu_setup_boot_addr_wa().
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-4-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Sorting the headers in alphabetic order will help to reduce conflicts
when adding new headers later.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-3-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
do_armada_370_xp_cpu_suspend() and armada_370_xp_pmsu_idle_prepare(),
have been merged into a single function called
armada_370_xp_pmsu_idle_enter() by the commit "bbb92284b6c8 ARM:
mvebu: slightly refactor/rename PMSU idle related functions", in
prepare for the introduction of the CPU hotplug support for Armada XP.
But for cpuidle the prepare function will be common to all the mvebu
SoCs that use the PMSU, while the suspend function will be specific to
each SoC. Keeping the prepare function separate will help reducing
code duplication while new SoC support is added.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-2-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* Fix SD2CKCR register address of r8a7791 (R-Car M2) SoC
This corrects a bug introduced in v3.14 by
59e79895b9 ("ARM: shmobile: r8a7791: Add clocks").
However, it does not manifest in mainline code until
SDHI devices were enabled on the Koelsch board in v3.15 by
2c60a7df72 ("ARM: shmobile: Add SDHI devices for Koelsch DTS").
It also manifests on the Henninger board when
SDHI devices were enabled in v3.16-rc1 by
1299df03d7 ("ARM: shmobile: henninger: add SDHI0/2 DT support")
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Merge tag 'renesas-fixes2-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Second Round of Renesas ARM Based SoC Fixes for v3.16" from Simon Horman
* Fix SD2CKCR register address of r8a7791 (R-Car M2) SoC
This corrects a bug introduced in v3.14 by
59e79895b9 ("ARM: shmobile: r8a7791: Add clocks").
However, it does not manifest in mainline code until
SDHI devices were enabled on the Koelsch board in v3.15 by
2c60a7df72 ("ARM: shmobile: Add SDHI devices for Koelsch DTS").
It also manifests on the Henninger board when
SDHI devices were enabled in v3.16-rc1 by
1299df03d7 ("ARM: shmobile: henninger: add SDHI0/2 DT support")
* tag 'renesas-fixes2-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7791: Fix SD2CKCR register address
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A number of board files in arch/arm and arch/unicore32
explicitly reference platform_bus device as a parent
for new platform devices.
This is unnecessary, as platform device API guarantees
that devices with NULL parent are going to by adopted
by the mentioned "root" device.
This patch removes or replaces with NULL such references.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the nanoseconds based interface instead of converting from a
timespec.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
This patchset fix wrong compatible string for Exynos3250 ADC. Exynos3250 SoC
need to control only special clock for ADC. Exynos SoC except for Exynos3250
has not included special clock for ADC. The exynos ADC driver can control
special clock if compatible string is 'exynos3250-adc-v2'.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Merge basic support for the Mediatek Cortex-A7 SoCs from Matthias Brugger:
Support is quite basic, as the only component working up to now are the
timers.
* tag 'v3.17-next-mediatek-support' of https://github.com/mbgg/linux-mediatek:
arm: mediatek: add dts for Aquaris5 mobile phone
dt-bindings: add documentation for Mediatek SoC
arm: add basic support for Mediatek MT6589 boards
Signed-off-by: Matthias Brugger matthias.bgg@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Armada 375
- Fix ethernet aliases for new node added for v3.17
- Add missing MDIO clock for new node added for v3.17
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Merge tag 'mvebu-dt-3.17-3' of git://git.infradead.org/linux-mvebu into next/dt
Merge "mvebu DT changes for v3.17 (round 3)" from Jason Cooper:
- Armada 375
- Fix ethernet aliases for new node added for v3.17
- Add missing MDIO clock for new node added for v3.17
* tag 'mvebu-dt-3.17-3' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: Add missing MDIO clock in Armada 375
ARM: mvebu: Add ethernet aliases required by U-Boot
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The non-scalar ktime_t implementation is basically a timespec
which has to be changed to support dates past 2038 on 32bit
systems.
This patch removes the non-scalar ktime_t implementation, forcing
the scalar s64 nanosecond version on all architectures.
This may have additional performance overhead on some 32bit
systems when converting between ktime_t and timespec structures,
however the majority of 32bit systems (arm and i386) were already
using scalar ktime_t, so no performance regressions will be seen
on those platforms.
On affected platforms, I'm open to finding optimizations, including
avoiding converting to timespecs where possible.
[ tglx: We can now cleanup the ktime_t.tv64 mess, but thats a
different issue and we can throw a coccinelle script at it ]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
commit 11c32d7b62 ("video: move Versatile CLCD helpers")
moved files out of the plat-versatile directory but in the process
got a few of the dependencies wrong:
- If CONFIG_FB is not set, the file no longer gets built, resulting
in a link error
- If CONFIG_FB or CONFIG_FB_ARMCLCD are disabled, we also get a
Kconfig warning for incorrect dependencies due to the symbol
being 'select'ed from the platform Kconfig.
- When the file is not built, we also get a link error for missing
symbols.
This patch should fix all three, by removing the 'select' statements,
changing the Kconfig description of the symbol to be enabled in
exactly the right configurations, and adding inline stub functions
for the case when the framebuffer driver is disabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
In case of error, the function clk_get() returns ERR_PTR()
and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Link: https://lkml.kernel.org/r/1406038688-26417-1-git-send-email-weiyj_lk@163.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
In Armada 375 SoCs, the MDIO is handled by a separate orion-mdio driver,
despite the register is contained within the "LMS" block of the network
controller.
Therefore we need to add the clock to the MDIO devicetree to prevent the
controller from being accesed with its clock gated. This is needed, for
instance, to be able to load the MDIO driver before the network driver.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Link: https://lkml.kernel.org/r/1405961296-5846-7-git-send-email-ezequiel.garcia@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
As clocksource pxa_timer was moved to clocksource framework, the
pxa_timer initialization needs to be a bit amended, to pass the
necessary informations to clocksource, ie :
- the timer interrupt (mach specific)
- the timer registers base (ditto)
- the timer clockrate
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Select CLKSRC_OF for PXA architectures.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Move time.c from arch/arm/mach-pxa/time.c to
drivers/clocksource/pxa_timer.c.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Adds ability to shutdown all CPUs except the first one
(since it might be special for a lot of platforms).
It is now possible to use kexec which requires such a feature.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
When compiling for multiplatform for both ARMv6 and ARMv7, the default
compiler flags are for ARMv6, and the following cpu-hotplug change will
fail with:
/tmp/ccSFxfmI.s:68: Error: selected processor does not support ARM mode `isb '
/tmp/ccSFxfmI.s:74: Error: selected processor does not support ARM mode `isb '
/tmp/ccSFxfmI.s:75: Error: selected processor does not support ARM mode `dsb '
Fix this in a similar manner as in commit 9f0affcf3e "ARM: mvebu: Fix pmsu
compilation when ARMv6 is selected", by specifying ARMv7 flags for platsmp.o.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This patch adds bch8 ecc software fallback which is mostly used by
omap3s because they lack hardware elm support.
Fixes: 0611c41934 (ARM: OMAP2+: gpmc:
update gpmc_hwecc_bch_capable() for new platforms and ECC schemes)
Cc: <stable@vger.kernel.org> # 3.15.x+
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Reviewed-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
although one patch adds DSS hwmods for AM43xx.
Basic build, boot, and PM test results are available here:
http://www.pwsan.com/omap/testlogs/hwmod-a-v3.17/20140722143514/
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Merge tag 'for-v3.17/omap-hwmod-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.17/soc
OMAP hwmod data additions for v3.17. Most of these are DRA7xx-related,
although one patch adds DSS hwmods for AM43xx.
Basic build, boot, and PM test results are available here:
http://www.pwsan.com/omap/testlogs/hwmod-a-v3.17/20140722143514/
As exynos_cpuidle_init() and exynos_cpufreq_init() functions have just
one line of code for registering platform devices. So we can move them
to exynos_dt_machine_init() and remove exynos_cpuidle_init() and
exynos_cpufreq_init(). This will help in reducing lines of code in
exynos.c, making it more clean.
Suggested-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Under "arm/mach-exynos" many files are using PMU register offsets.
Since we have added support for accessing PMU base address via DT,
now we can remove PMU mapping from exynosX_iodesc. Let's convert
all these access using iomapped address.
This will help us in removing static mapping of PMU base address
as well as help in reducing dependency over machine header files.
Thus helping for migration of PMU implementation from machine to
driver folder which can be reused for ARM64 based SoC.
Also as we have removed static mappings from "regs-pmu.h" it does
not need map.h anymore. But "platsmp.c" needed this and till now it
got included indirectly. So lets move header inclusion of
"mach/map.h" from "regs-pmu.h" to "platsmp.c".
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Turning off a cluster when all 4 cores of the cluster are powered off
saves power significantly. Powering off the A15 L2 alone gives around
100mW in savings. Add support for powering off the A15/A7 clusters on
exynos5420/5800.
The patch enables specific register bits which ensure that:
- cluster L2 will be turned on before the first man is powered up.
- last man will be turned off before the cluster L2 is turned off.
- core is powered down before powering it up.
Remove the exynos_cluster_power_control function completely as we can
rely on the above mentioned bits rather than polling the cluster power
status register.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Since the OPP layer is a kernel library which has been converted to be
directly selectable by its callers rather than user selectable and
requiring architectures to enable it explicitly the ARCH_HAS_OPP symbol
has become redundant and can be removed. Do so.
Signed-off-by: Mark Brown <broonie@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add hwmod data for RTC
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Adding hwmod data for CPSW and MDIO which is present in DRA7xx SoC
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Added hwmod data for pcie1 and pcie2 subsystem present in DRA7xx SOC.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Added hwmod data for pcie1 and pcie2 phy present in DRA7xx SOC.
Also added the missing CLKCTRL OFFSET macro and CONTEXT OFFSET macro
for pcie1 phy and pcie2 phy.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This module is needed for the SATA and PCIe PHYs.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This adds a generic devicetree board file and a dtsi for boards
based on MT6589 SoCs from Mediatek.
Apart from the generic parts (gic, clocks) the only component
currently supported are the timers.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This patch adds KEYBOARD_ST_KEYSCAN config
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
DMA interrupts are now available in of, and the definitions are
duplicates in hwmod. This prevents us from dynamically allocating
interrupt resources for dma from devicetree.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
we have currently 2 DMA drivers that try to co-exist.
drivers/dma/omap-dma.c which registers it's own IRQ and is device tree
aware and uses arch/arm/plat-omap/dma.c instance created by
arch/arm/mach-omap2/dma.c to maintain channel usage (omap_request_dma).
Currently both try to register interrupts and mach-omap2/plat-omap dma.c
attempts to use the IRQ number registered by hwmod to register it's own
interrupt handler.
Now, there is no reasonable way of static allocating DMA irq in GIC
SPI when we use crossbar. However, since the dma_chan structure is
freed as a result of IRQ not being present due to devm allocation,
maintaining information of channel by platform code fails at a later
point in time when that region of memory is reused.
So, if hwmod does not indicate an IRQ number, then, assume that
dma-engine will take care of the interrupt handling.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
- Changes to PRM and clock related code to help move
things to drivers
- Removal of unused ctrl module defines that no longer
are needed with things moving to .dts files and
drivers
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Merge tag 'omap-for-v3.17/soc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Merge "omap soc clean-up for v3.17 merge window" from Tony Lindgren:
SoC specific omap clean-up for v3.17 merge window:
- Changes to PRM and clock related code to help move
things to drivers
- Removal of unused ctrl module defines that no longer
are needed with things moving to .dts files and
drivers
* tag 'omap-for-v3.17/soc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (23 commits)
ARM: OMAP2+: clock/interface: remove some headers from clkt_iclk.c file
ARM: OMAP2+: clock/dpll: remove unused header includes from dpll3xxx.c
ARM: OMAP2+: clock/dpll: remove unused header includes from clkt_dpll.c
ARM: OMAP2+: clock/interface: add a clk_features definition for idlest value
ARM: OMAP2+: clock/dpll: add jitter correction behind clk_features
ARM: OMAP2+: clock/dpll: convert bypass check to use clk_features
ARM: OMAP2+: clock/dpll: add private API for checking if DPLL is in bypass
ARM: OMAP2+: clock: add fint values to the ti_clk_features struct
ARM: OMAP2+: clock: introduce ti_clk_features flags
ARM: OMAP4+: dpll44xx: remove cm-regbits-44xx.h and clock44xx.h includes
ARM: OMAP4+: dpll: remove cpu_is_omap44xx checks
ARM: OMAP4+: clock: remove DEFINE_CLK_OMAP_HSDIVIDER macro
ARM: OMAP4: Ctrl module register define diet
ARM: OMAP3: control: isolate control module init to its own function
ARM: OMAP3: PRM: move modem reset and iva2 idle to PRM driver
ARM: OMAP3: control: add API for setting up the modem pads
ARM: OMAP3: PRM: move PRM init code from PM core to the driver
ARM: OMAP24xx: PRM: add API for clearing wakeup status bits
ARM: OMAP3: PRM: add API for saving PRM scratchpad contents
ARM: OMAP3: PRM: add API for checking and clearing cold reset status
...
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch enables SDHCI STI platform driver.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Ajit Pal Singh <ajitpal.singh@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
This is in preparation for moving this code into drivers/clk/ti.
Basic build, boot, and PM test logs are here:
http://www.pwsan.com/omap/testlogs/clock-a-v3.17/20140717034329/
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Merge tag 'for-v3.17/omap-clock-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.17/soc
An OMAP clock cleanup series for 3.17 from Tero Kristo.
This is in preparation for moving this code into drivers/clk/ti.
Basic build, boot, and PM test logs are here:
http://www.pwsan.com/omap/testlogs/clock-a-v3.17/20140717034329/