11 Nov, 2015
2 commits
-
Pull ARM SoC cleanups from Olof Johansson:
"Again we have a sizable (but not huge) cleanup branch with a net delta
of about -3k lines.Main contents here is:
- A bunch of development/cleanup of a few PXA boards
- Removal of bockw platforms on shmobile, since the platform has now
gone completely multiplatform. Whee!
- move of the 32kHz timer on OMAP to a proper timesource
- Misc cleanup of older OMAP material (incl removal of one board
file)
- Switch over to new common PWM lookup support for several platformsThere's also a handful of other cleanups across the tree, but the
above are the major pieces"* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (103 commits)
ARM: OMAP3: hwmod data: Remove legacy mailbox data and addrs
ARM: DRA7: hwmod data: Remove spinlock hwmod addrs
ARM: OMAP4: hwmod data: Remove spinlock hwmod addrs
ARM: DRA7/AM335x/AM437x: hwmod: Remove gpmc address space from hwmod data
ARM: Remove __ref on hotplug cpu die path
ARM: Remove open-coded version of IRQCHIP_DECLARE
arm: omap2: board-generic: use omap4_local_timer_init for AM437x
ARM: DRA7/AM335x/AM437x: hwmod: Remove elm address space from hwmod data
ARM: OMAP: Remove duplicated operand in OR operation
clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE
ARM: pxa: remove incorrect __init annotation on pxa27x_set_pwrmode
ARM: pxa: raumfeld: make some variables static
ARM: OMAP: Change all cpu_is_* occurences to soc_is_* for id.c
ARM: OMAP2+: Rename cpu_is macros to soc_is
arm: omap2: timer: limit hwmod usage to non-DT boots
arm: omap2+: select 32k clocksource driver
clocksource: add TI 32.768 Hz counter driver
arm: omap2: timer: rename omap_sync32k_timer_init()
arm: omap2: timer: always call clocksource_of_init() when DT
arm: omap2: timer: move realtime_counter_init() around
... -
Pull dmaengine updates from Vinod Koul:
"This time we have a very typical update which is mostly fixes and
updates to drivers and no new drivers.- the biggest change is coming from Peter for edma cleanup which even
caused some last minute regression, things seem settled now
- idma64 and dw updates
- iotdma updates
- module autoload fixes for various drivers
- scatter gather support for hdmac"* tag 'dmaengine-4.4-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (77 commits)
dmaengine: edma: Add dummy driver skeleton for edma3-tptc
Revert "ARM: DTS: am33xx: Use the new DT bindings for the eDMA3"
Revert "ARM: DTS: am437x: Use the new DT bindings for the eDMA3"
dmaengine: dw: some Intel devices has no memcpy support
dmaengine: dw: platform: provide platform data for Intel
dmaengine: dw: don't override platform data with autocfg
dmaengine: hdmac: Add scatter-gathered memset support
dmaengine: hdmac: factorise memset descriptor allocation
dmaengine: virt-dma: Fix kernel-doc annotations
ARM: DTS: am437x: Use the new DT bindings for the eDMA3
ARM: DTS: am33xx: Use the new DT bindings for the eDMA3
dmaengine: edma: New device tree binding
dmaengine: Kconfig: edma: Select TI_DMA_CROSSBAR in case of ARCH_OMAP
dmaengine: ti-dma-crossbar: Add support for crossbar on AM33xx/AM43xx
dmaengine: edma: Merge the of parsing functions
dmaengine: edma: Do not allocate memory for edma_rsv_info in case of DT boot
dmaengine: edma: Refactor the dma device and channel struct initialization
dmaengine: edma: Get qDMA channel information from HW also
dmaengine: edma: Merge map_dmach_to_queue into assign_channel_eventq
dmaengine: edma: Correct PaRAM access function names (_parm_ to _param_)
...
04 Nov, 2015
1 commit
-
Pull irq updates from Thomas Gleixner:
"The irq departement delivers:- Rework the irqdomain core infrastructure to accomodate ACPI based
systems. This is required to support ARM64 without creating
artificial device tree nodes.- Sanitize the ACPI based ARM GIC initialization by making use of the
new firmware independent irqdomain core- Further improvements to the generic MSI management
- Generalize the irq migration on CPU hotplug
- Improvements to the threaded interrupt infrastructure
- Allow the migration of "chained" low level interrupt handlers
- Allow optional force masking of interrupts in disable_irq[_nosysnc]
- Support for two new interrupt chips - Sigh!
- A larger set of errata fixes for ARM gicv3
- The usual pile of fixes, updates, improvements and cleanups all
over the place"* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
Document that IRQ_NONE should be returned when IRQ not actually handled
PCI/MSI: Allow the MSI domain to be device-specific
PCI: Add per-device MSI domain hook
of/irq: Use the msi-map property to provide device-specific MSI domain
of/irq: Split of_msi_map_rid to reuse msi-map lookup
irqchip/gic-v3-its: Parse new version of msi-parent property
PCI/MSI: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
of/irq: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
of/irq: Add support code for multi-parent version of "msi-parent"
irqchip/gic-v3-its: Add handling of PCI requester id.
PCI/MSI: Add helper function pci_msi_domain_get_msi_rid().
of/irq: Add new function of_msi_map_rid()
Docs: dt: Add PCI MSI map bindings
irqchip/gic-v2m: Add support for multiple MSI frames
irqchip/gic-v3: Fix translation of LPIs after conversion to irq_fwspec
irqchip/mxs: Add Alphascale ASM9260 support
irqchip/mxs: Prepare driver for hardware with different offsets
irqchip/mxs: Panic if ioremap or domain creation fails
irqdomain: Documentation updates
irqdomain/msi: Use fwnode instead of of_node
...
29 Oct, 2015
1 commit
14 Oct, 2015
1 commit
-
Move the code out from arch/arm/common and merge it inside of the dmaengine
driver.
This change is done with as minimal (if eny) functional change to the code
as possible to avoid introducing regression.Signed-off-by: Peter Ujfalusi
Acked-by: Tony Lindgren
Signed-off-by: Vinod Koul
10 Oct, 2015
1 commit
-
This patch allows ARM guests to use GICv3 on an arm64 host
Reviewed-by: Marc Zyngier
Signed-off-by: Jean-Philippe Brucker
Signed-off-by: Marc Zyngier
03 Oct, 2015
3 commits
-
When highmem is enabled, there's little reason not to also enable
highpte support as well. Rather than leaving this to chance, make
it an expert option, and default it to be enabled if highmem is
enabled. Add some help text to the option while we're here.Signed-off-by: Russell King
-
Mimicking the same config option on x86, this allows for 1GB systems to
have their RAM entirely mapped as low memory.Signed-off-by: Nicolas Pitre
Signed-off-by: Russell King -
This reverts commit 904464b91eca8c665acea033489225af02eeb75a.
The problem pointed out by commit 904464b91eca ("ARM: 7655/1:
smp_twd: make twd_local_timer_of_register() no-op for nosmp")
doesn't exist anymore.We can safely boot with nosmp and the warning won't show up.
The other side benefit of this patch is that TWD has a chance
to probe on single-core A9 systems such as AM437x which sport
TWD.While at that, also drop SMP dependency from TWD's Kconfig entry.
Cc: Shawn Guo
Cc: Dirk Behme
Acked-by: Tony Lindgren
Signed-off-by: Felipe Balbi
Signed-off-by: Russell King
28 Sep, 2015
1 commit
-
RiscPC fails to build if MMU is disabled:
arch/arm/mach-rpc/ecard.c: In function 'ecard_init_pgtables':
arch/arm/mach-rpc/ecard.c:229:2: error: implicit declaration of function 'pgd_offset' [-Werror=implicit-function-declaration]arrange for RiscPC to depend on MMU.
Signed-off-by: Russell King
14 Sep, 2015
1 commit
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With Bock-W, the last legacy platform has been removed.
Signed-off-by: Ulrich Hecht
Acked-by: by: Geert Uytterhoeven
Signed-off-by: Simon Horman
11 Sep, 2015
1 commit
-
There are two kexec load syscalls, kexec_load another and kexec_file_load.
kexec_file_load has been splited as kernel/kexec_file.c. In this patch I
split kexec_load syscall code to kernel/kexec.c.And add a new kconfig option KEXEC_CORE, so we can disable kexec_load and
use kexec_file_load only, or vice verse.The original requirement is from Ted Ts'o, he want kexec kernel signature
being checked with CONFIG_KEXEC_VERIFY_SIG enabled. But kexec-tools use
kexec_load syscall can bypass the checking.Vivek Goyal proposed to create a common kconfig option so user can compile
in only one syscall for loading kexec kernel. KEXEC/KEXEC_FILE selects
KEXEC_CORE so that old config files still work.Because there's general code need CONFIG_KEXEC_CORE, so I updated all the
architecture Kconfig with a new option KEXEC_CORE, and let KEXEC selects
KEXEC_CORE in arch Kconfig. Also updated general kernel code with to
kexec_load syscall.[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dave Young
Cc: Eric W. Biederman
Cc: Vivek Goyal
Cc: Petr Tesarik
Cc: Theodore Ts'o
Cc: Josh Boyer
Cc: David Howells
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Sep, 2015
1 commit
-
Pull ARM development updates from Russell King:
"Included in this update:- moving PSCI code from ARM64/ARM to drivers/
- removal of some architecture internals from global kernel view
- addition of software based "privileged no access" support using the
old domains register to turn off the ability for kernel
loads/stores to access userspace. Only the proper accessors will
be usable.- addition of early fixup support for early console
- re-addition (and reimplementation) of OMAP special interconnect
barrier- removal of finish_arch_switch()
- only expose cpuX/online in sysfs if hotpluggable
- a number of code cleanups"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (41 commits)
ARM: software-based priviledged-no-access support
ARM: entry: provide uaccess assembly macro hooks
ARM: entry: get rid of multiple macro definitions
ARM: 8421/1: smp: Collapse arch_cpu_idle_dead() into cpu_die()
ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore()
ARM: mm: improve do_ldrd_abort macro
ARM: entry: ensure that IRQs are enabled when calling syscall_trace_exit()
ARM: entry: efficiency cleanups
ARM: entry: get rid of asm_trace_hardirqs_on_cond
ARM: uaccess: simplify user access assembly
ARM: domains: remove DOMAIN_TABLE
ARM: domains: keep vectors in separate domain
ARM: domains: get rid of manager mode for user domain
ARM: domains: move initial domain setting value to asm/domains.h
ARM: domains: provide domain_mask()
ARM: domains: switch to keeping domain value in register
ARM: 8419/1: dma-mapping: harmonize definition of DMA_ERROR_CODE
ARM: 8417/1: refactor bitops functions with BIT_MASK() and BIT_WORD()
ARM: 8416/1: Feroceon: use of_iomap() to map register base
ARM: 8415/1: early fixmap support for earlycon
...
03 Sep, 2015
2 commits
-
Conflicts:
drivers/perf/arm_pmu.c
02 Sep, 2015
1 commit
-
Pull ARM SoC cleanups from Olof Johansson:
"A large cleanup branch this release, with a healthy 10k negative line
delta.Most of this is removal of legacy (non-DT) support of shmobile
platforms. There is also removal of two non-DT platforms on OMAP, and
the plat-samsung directory is cleaned out by moving most of the
previously shared-location-but-not-actually-shared files from there to
the appropriate mach directories instead.There are other sets of changes in here as well:
- Rob Herring removed use of set_irq_flags under all platforms and
moved to genirq alternatives- a series of timer API conversions to set-state interface
- ep93xx, nomadik and ux500 cleanups from Linus Walleij
- __init annotation fixes from Nicolas Pitre
+ a bunch of other changes that all add up to a nice set of cleanups"
* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (108 commits)
ARM/fb: ep93xx: switch framebuffer to use modedb only
ARM: gemini: Setup timer3 as free running timer
ARM: gemini: Use timer1 for clockevent
ARM: gemini: Add missing register definitions for gemini timer
ARM: ep93xx/timer: Migrate to new 'set-state' interface
ARM: nomadik: push accelerometer down to boards
ARM: nomadik: move l2x0 setup to device tree
ARM: nomadik: selectively enable UART0 on boards
ARM: nomadik: move hog code to use DT hogs
ARM: shmobile: Fix mismerges
ARM: ux500: simplify secondary CPU boot
ARM: SAMSUNG: remove keypad-core header in plat-samsung
ARM: SAMSUNG: local watchdog-reset header in mach-s3c64xx
ARM: SAMSUNG: local onenand-core header in mach-s3c64xx
ARM: SAMSUNG: local irq-uart header in mach-s3c64xx
ARM: SAMSUNG: local backlight header in mach-s3c64xx
ARM: SAMSUNG: local ata-core header in mach-s3c64xx
ARM: SAMSUNG: local regs-usb-hsotg-phy header in mach-s3c64xx
ARM: SAMSUNG: local spi-core header in mach-s3c24xx
ARM: SAMSUNG: local nand-core header in mach-s3c24xx
...
27 Aug, 2015
1 commit
-
Provide a software-based implementation of the priviledged no access
support found in ARMv8.1.Userspace pages are mapped using a different domain number from the
kernel and IO mappings. If we switch the user domain to "no access"
when we enter the kernel, we can prevent the kernel from touching
userspace.However, the kernel needs to be able to access userspace via the
various user accessor functions. With the wrapping in the previous
patch, we can temporarily enable access when the kernel needs user
access, and re-disable it afterwards.This allows us to trap non-intended accesses to userspace, eg, caused
by an inadvertent dereference of the LIST_POISON* values, which, with
appropriate user mappings setup, can be made to succeed. This in turn
can allow use-after-free bugs to be further exploited than would
otherwise be possible.Signed-off-by: Russell King
22 Aug, 2015
1 commit
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mvebu fixes changes for v4.2
Fix legacy orion5x IRQ numbers broken since 3.18
* tag 'mvebu-fixes-4.2-1' of git://git.infradead.org/linux-mvebu:
ARM: orion5x: fix legacy orion5x IRQ numbersSigned-off-by: Olof Johansson
21 Aug, 2015
1 commit
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Since v3.18, attempts to deliver IRQ0 are rejected, breaking orion5x.
Fix this by increasing all interrupts by one, as did 5d6bed2a9c8b for
dove. Also, force MULTI_IRQ_HANDLER for all orion platforms (including
dove) as the specific handler is needed to shift back IRQ numbers by
one.[gregory.clement@free-electrons.com]: moved the select
MULTI_IRQ_HANDLER from PLAT_ORION_LEGACY to ARCH_ORION5X as it broke
the build for dove.Fixes: a71b092a9c68 ("ARM: Convert handle_IRQ to use __handle_domain_irq")
Signed-off-by: Benjamin Cama
Signed-off-by: Gregory CLEMENT
Cc:
Tested-by: Detlef Vollmann
18 Aug, 2015
1 commit
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Add early fixmap support, initially to support permanent, fixed
mapping support for early console. A temporary, early pte is
created which is migrated to a permanent mapping in paging_init.
This is also needed since the attributes may change as the memory
types are initialized. The 3MiB range of fixmap spans two pte
tables, but currently only one pte is created for early fixmap
support.Re-add FIX_KMAP_BEGIN to the index calculation in highmem.c since
the index for kmap does not start at zero anymore. This reverts
4221e2e6b316 ("ARM: 8031/1: fixmap: remove FIX_KMAP_BEGIN and
FIX_KMAP_END") to some extent.Cc: Mark Salter
Cc: Kees Cook
Cc: Laura Abbott
Cc: Arnd Bergmann
Cc: Ard Biesheuvel
Signed-off-by: Rob Herring
Signed-off-by: Stefan Agner
Signed-off-by: Russell King
10 Aug, 2015
1 commit
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…64/linux into devel-stable
03 Aug, 2015
1 commit
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Now that the common PSCI client code has been factored out to
drivers/firmware, and made safe for 32-bit use, move the 32-bit ARM code
over to it. This results in a moderate reduction of duplicated lines,
and will prevent further duplication as the PSCI client code is updated
for PSCI 1.0 and beyond.The two legacy platform users of the PSCI invocation code are updated to
account for interface changes. In both cases the power state parameter
(which is constant) is now generated using macros, so that the
pack/unpack logic can be killed in preparation for PSCI 1.0 power state
changes.Signed-off-by: Mark Rutland
Acked-by: Rob Herring
Cc: Catalin Marinas
Cc: Ashwin Chaugule
Cc: Lorenzo Pieralisi
Cc: Russell King
Cc: Will Deacon
Signed-off-by: Will Deacon
31 Jul, 2015
1 commit
-
To enable sharing of the arm_pmu code with arm64, this patch factors it
out to drivers/perf/. A new drivers/perf directory is added for
performance monitor drivers to live under.MAINTAINERS is updated accordingly. Files added previously without a
corresponsing MAINTAINERS update (perf_regs.c, perf_callchain.c, and
perf_event.h) are also added.Cc: Arnaldo Carvalho de Melo
Cc: Greg Kroah-Hartman
Cc: Ingo Molnar
Cc: Linus Walleij
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Russell King
Cc: Will Deacon
Signed-off-by: Mark Rutland
[will: augmented Kconfig help slightly]
Signed-off-by: Will Deacon
18 Jul, 2015
1 commit
-
…sw/linux-integrator into next/cleanup
Merge "EP93xx cleanups for v4.3" from Linus Walleij:
EP93xx cleanup and completing developments. This switches
EP93xx to generic time and brings in a few out-of-tree small
patches that were stalled for ages.It also removes the need for memory config options and instead moves over to
using PATCH_PHYS_VIRT.* tag 'ep93xx-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: ep93xx: simone: enable DMA on the SPI host
ARM: ep93xx: vision_ep9307: add audio support
ARM: ep93xx: vision_ep9307: enable DMA for SPI
ARM: ep93xx: toss the device ID into the entropy pool
ARM: ep93xx: remove memory configuration options
ARM: ep93xx: update comment on timer usage
ARM: ep93xx: switch clockevent to timer 3
ARM: ep93xx: use non-raw accessors for timer
ARM: ep93xx: switch to GENERIC_CLOCKEVENTS
ARM: ep93xx: move timer to its own fileSigned-off-by: Olof Johansson <olof@lixom.net>
17 Jul, 2015
1 commit
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The ARM_PATCH_PHYS_VIRT option makes the ep93xx memory configuration
options obsolete.This allows support for all the ep93xx variations to be built into a
single kernel.Signed-off-by: H Hartley Sweeten
Signed-off-by: Linus Walleij
08 Jul, 2015
1 commit
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This switches the EP93xx to use GENERIC_CLOCKEVENTS and
CLKSRC_MMIO. Also implements a sched_clock() hook.
Tested on the SIM.ONE. Use only oneshot events.Tested-by: H Hartley Sweeten
Reviewed-by: H Hartley Sweeten
Signed-off-by: Linus Walleij
07 Jul, 2015
1 commit
29 Jun, 2015
1 commit
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Add some help text for the HIGHPTE configuration entry. This comes from
the x86 entry, but reworded to be more a more accurate description of
what this option does.Signed-off-by: Russell King
27 Jun, 2015
2 commits
-
Pull ARM updates from Russell King:
"Bigger items included in this update are:- A series of updates from Arnd for ARM randconfig build failures
- Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to
drivers/irqchip/
- Move ARMs SP804 timer to drivers/clocksource/
- Perf updates from Mark Rutland in preparation to move the ARM perf
code into drivers/ so it can be shared with ARM64.
- MCPM updates from Nicolas
- Add support for taking platform serial number from DT
- Re-implement Keystone2 physical address space switch to conform to
architecture requirements
- Clean up ARMv7 LPAE code, which goes in hand with the Keystone2
changes.
- L2C cleanups to avoid unlocking caches if we're prevented by the
secure support to unlock.
- Avoid cleaning a potentially dirty cache containing stale data on
CPU initialisation
- Add ARM-only entry point for secondary startup (for machines that
can only call into a Thumb kernel in ARM mode). Same thing is also
done for the resume entry point.
- Provide arch_irqs_disabled via asm-generic
- Enlarge ARMv7M vector table
- Always use BFD linker for VDSO, as gold doesn't accept some of the
options we need.
- Fix an incorrect BSYM (for Thumb symbols) usage, and convert all
BSYM compiler macros to a "badr" (for branch address).
- Shut up compiler warnings provoked by our cmpxchg() implementation.
- Ensure bad xchg sizes fail to link"* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits)
ARM: Fix build if CLKDEV_LOOKUP is not configured
ARM: fix new BSYM() usage introduced via for-arm-soc branch
ARM: 8383/1: nommu: avoid deprecated source register on mov
ARM: 8391/1: l2c: add options to overwrite prefetching behavior
ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic
ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap
ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
ARM: 8384/1: VDSO: force use of BFD linker
ARM: 8385/1: VDSO: group link options
ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
ARM: remove __bad_xchg definition
ARM: 8369/1: ARMv7M: define size of vector table for Vybrid
ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK
ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource
ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion
ARM: 8364/1: fix BE32 module loading
ARM: 8360/1: add secondary_startup_arm prototype in header file
ARM: 8359/1: correct secondary_startup_arm mode
ARM: proc-v7: sanitise and document registers around errata
ARM: proc-v7: clean up MIDR access
... -
Pull ARM SoC platform support updates from Kevin Hilman:
"Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC"* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
ARM: zx: Add basic defconfig support for ZX296702
ARM: dts: zx: add an initial zx296702 dts and doc
clk: zx: add clock support to zx296702
dt-bindings: Add #defines for ZTE ZX296702 clocks
ARM: socfpga: fix build error due to secondary_startup
MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
ARM: ep93xx: simone: support for SPI-based MMC/SD cards
MAINTAINERS: update Shawn's email to use kernel.org one
ARM: socfpga: support suspend to ram
ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
ARM: EXYNOS: register power domain driver from core_initcall
ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
ARM: SAMSUNG: Constify platform_device_id
ARM: EXYNOS: Constify irq_domain_ops
ARM: EXYNOS: add coupled cpuidle support for Exynos3250
ARM: EXYNOS: add exynos_get_boot_addr() helper
ARM: EXYNOS: add exynos_set_boot_addr() helper
ARM: EXYNOS: make exynos_core_restart() less verbose
ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
...
13 Jun, 2015
1 commit
02 Jun, 2015
1 commit
-
The ARM Dual-Timer SP804 module is peripheral found not only on ARM32
platforms but also on ARM64 platforms.This patch moves the driver out of arch/arm to driver/clocksource
so that it can be used on ARM64 platforms also.Cc: Daniel Lezcano
Cc: Rob Herring
Cc: Arnd Bergmann
Cc: Catalin Marinas
Cc: Olof Johansson
Acked-by: Thomas Gleixner
Signed-off-by: Sudeep Holla
Signed-off-by: Russell King
01 Jun, 2015
2 commits
-
STM32 clocksource driver needs to be selected if ARCH_STM32.
Signed-off-by: Maxime Coquelin
Signed-off-by: Arnd Bergmann -
Merge "changes for Broadcom SoCs":
- Dan fixes an error path in the BCM63xx SMP code
- Ray adds the relevant Kconfig selects to enable the Broadcom NAND driver on Cygnus
- Kevin provides a change to the Broadcom GISB arbiter driver to make it work with
MIPS-based big-endian STB SoCs (this was a long-standing change that had dependencies on
code in drivers/of/*)- Gregory enables the use of GPIOLIB for brcmstb SoCs and bumps the number of GPIOs for
these platforms* tag 'arm-soc/for-4.2/soc-part2' of http://github.com/broadcom/stblinux:
ARM: brcmstb: Add default gpio number
ARM: brcmstb: Select ARCH_WANT_OPTIONAL_GPIOLIB
bus: brcmstb_gisb: Honor the "big-endian" and "native-endian" DT properties
ARM: BCM: Enable NAND support for iProc SoCs
ARM: BCM63xx: fix an error path in bcm63xx_pmb_power_on_cpu()
30 May, 2015
1 commit
-
Out of the brcmstb SoCs that I know, BCM3390 has the largest numbers
of GPIOs, with its
- 320 "peripheral" GPIOs
- 5*32 = 160 UPG GPIOs (counting unused lines, which do get counted)
- 2*32 = 64 UPG AON GPIOs (counting unused lines)
Total: 544I suspect that the upper limit will only need to be higher in the
future, so set it to 1024.Signed-off-by: Gregory Fong
Signed-off-by: Florian Fainelli
28 May, 2015
4 commits
-
So first of all, this atomic_scrub() function's naming is bad. It looks
like an atomic_t helper. Change it to edac_atomic_scrub().The bigger problem is that this function is arch-specific and every new
arch which doesn't necessarily need that functionality still needs to
define it, otherwise EDAC doesn't compile.So instead of doing that and including arch-specific headers, have each
arch define an EDAC_ATOMIC_SCRUB symbol which can be used in edac_mc.c
for ifdeffery. Much cleaner.And we already are doing this with another symbol - EDAC_SUPPORT. This
is also much cleaner than having CONFIG_EDAC enumerate all the arches
which need/have EDAC support and drivers.This way I can kill the useless edac.h header in tile too.
Acked-by: Ralf Baechle
Acked-by: Michael Ellerman
Acked-by: Chris Metcalf
Acked-by: Ingo Molnar
Acked-by: Russell King
Cc: Benjamin Herrenschmidt
Cc: Doug Thompson
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: "Maciej W. Rozycki"
Cc: Markos Chandras
Cc: Mauro Carvalho Chehab
Cc: Paul Mackerras
Cc: "Steven J. Hill"
Cc: x86@kernel.org
Signed-off-by: Borislav Petkov -
Kprobes, irqflags tracing and kexec don't currently build on
kernels targetting ARMv7-M, so for now, we should just disallow
those combinations.Signed-off-by: Arnd Bergmann
Signed-off-by: Russell King -
KGDB requires code patching, which only works on little-endian
or newer big-endian (BE8) machines but not on the older big-endian
ones (BE32) where it results in this build error:arch/arm/kernel/patch.c: In function '__patch_text_real':
arch/arm/kernel/patch.c:93:4: error: implicit declaration of function '__opcode_to_mem_thumb32' [-Werror=implicit-function-declaration]
insn = __opcode_to_mem_thumb32(insn);This adds a Kconfig dependency to avoid the broken case and
for all other symbols that require code patching.Fixes: 23a4e4050ba9 ("arm: kgdb: Handle read-only text / modules")
Signed-off-by: Arnd Bergmann
Signed-off-by: Russell King -
Any SMP kernel now requires the irq_work code after
generic_smp_call_function_single_interrupt() started using it,
or we get:kernel/built-in.o: In function `flush_smp_call_function_queue':
:(.text+0x4dc3a): undefined reference to `irq_work_run'Fixes: 478850160636c4f ("irq_work: Implement remote queueing")
Signed-off-by: Arnd Bergmann
Signed-off-by: Russell King
22 May, 2015
1 commit
-
Use the new config symbol ARM_SINGLE_ARMV7M which groups config
symbols used by modern ARMv7-M platforms. This allows supporting
multiple ARMv7-M platforms in one kernel image. However, a common
kernel image requires the combined platforms to share the same
main memory layout to be bootable.Signed-off-by: Stefan Agner
Acked-by: Uwe Kleine-König
Acked-by: Joachim Eastwood
Acked-by: Maxime Coquelin
Signed-off-by: Arnd Bergmann