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2017-09-05Merge branch 'next/cleanup' into next/socOlof Johansson1-2/+1
* next/cleanup: soc: versatile: remove unnecessary static in realview_soc_probe() ARM: Convert to using %pOF instead of full_name ARM: hisi: Fix typo in comment ARM: OMAP4+: PRM: fix of_irq_get() result checks ARM: OMAP3+: PRM: fix of_irq_get() result check ARM: dts: dra72-evm-revc: workaround incorrect DP83867 RX_CTRL pin strap ARM: dts: dra71-evm: workaround incorrect DP83867 RX_CTRL pin strap ARM: OMAP2+: omap_device: drop broken RPM status update from suspend_noirq bus: omap-ocp2scp: Fix error handling in omap_ocp2scp_probe
2017-08-16Merge tag 'mvebu-soc-4.14-1' of git://git.infradead.org/linux-mvebu into next/socArnd Bergmann1-0/+2
Pull "mvebu soc for 4.14 (part 1)" from Gregory CLEMENT: Enabling ARM_GLOBAL_TIMER in mvebu_v7_defconfig for Armada 38x * tag 'mvebu-soc-4.14-1' of git://git.infradead.org/linux-mvebu: ARM: mvebu: enable ARM_GLOBAL_TIMER compilation Armada 38x platforms
2017-08-16ARM: Convert to using %pOF instead of full_nameRob Herring1-2/+1
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Cc: Russell King <linux@armlinux.org.uk> Cc: Kukjin Kim <kgene@kernel.org> Cc: Javier Martinez Canillas <javier@osg.samsung.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-03ARM: mvebu: enable ARM_GLOBAL_TIMER compilation Armada 38x platformsMarcin Wojtas1-0/+2
Armada 38x SoCs along with legacy timer (time-armada-370-xp.c), comprise generic Cortex-A9 global timer (arm_global_timer.c). Enable its compilation. The system clocksource subsystem will pick one of above two available ones in case the global timer node is present in the device tree. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-07-18ARM: mvebu: use __pa_symbol in the mv98dx3236 platform SMP codeGregory CLEMENT1-1/+1
As we already did for Armada XP switch from virt_to_phys() to __pa_symbol(). The reason for it was well explained by Mark Rutland so let's quote him: "virt_to_phys() is intended to operate on the linear/direct mapping of RAM. __pa_symbol() is intended to operate on the kernel mapping, which may not be in the linear/direct mapping on all architectures. e.g. arm64 and x86_64 map the kernel image and RAM separately. On 32-bit ARM the kernel image mapping is tied to the linear/direct mapping, so that works, but as it's semantically wrong (and broken for generic code), the DEBUG_VIRTUAL checks complain." Fixes: db88977894ab ("arm: mvebu: support for SMP on 98DX3336 SoC") Cc: <stable@vger.kernel.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-02-28Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds3-3/+3
Pull ARM updates from Russell King: - nommu updates from Afzal Mohammed cleaning up the vectors support - allow DMA memory "mapping" for nommu Benjamin Gaignard - fixing a correctness issue with R_ARM_PREL31 relocations in the module linker - add strlen() prototype for the decompressor - support for DEBUG_VIRTUAL from Florian Fainelli - adjusting memory bounds after memory reservations have been registered - unipher cache handling updates from Masahiro Yamada - initrd and Thumb Kconfig cleanups * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (23 commits) ARM: mm: round the initrd reservation to page boundaries ARM: mm: clean up initrd initialisation ARM: mm: move initrd init code out of arm_memblock_init() ARM: 8655/1: improve NOMMU definition of pgprot_*() ARM: 8654/1: decompressor: add strlen prototype ARM: 8652/1: cache-uniphier: clean up active way setup code ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h> ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly ARM: 8649/2: nommu: remove Hivecs configuration is asm ARM: 8648/2: nommu: display vectors base ARM: 8647/2: nommu: dynamic exception base address setting ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig ARM: 8644/1: Reduce "CPU: shutdown" message to debug level ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL ARM: 8639/1: Define KERNEL_START and KERNEL_END ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_ ARM: 8637/1: Adjust memory boundaries after reservations ARM: 8636/1: Cleanup sanity_check_meminfo ARM: add CPU_THUMB_CAPABLE to indicate possible Thumb support ...
2017-02-28ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbolFlorian Fainelli3-3/+3
All low-level PM/SMP code using virt_to_phys() should actually use __pa_symbol() against kernel symbols. Update code where relevant to move away from virt_to_phys(). Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-01-30arm: mvebu: support for SMP on 98DX3336 SoCChris Packham1-0/+75
Compared to the armada-xp the 98DX3336 uses different registers to set the boot address for the secondary CPU so a new enable-method is needed. This will only work if the machine definition doesn't define an overall smp_ops because there is not currently a way of overriding this from the device tree if it is set in the machine definition. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-12-25cpu/hotplug: Cleanup state namesThomas Gleixner1-1/+1
When the state names got added a script was used to add the extra argument to the calls. The script basically converted the state constant to a string, but the cleanup to convert these strings into meaningful ones did not happen. Replace all the useless strings with 'subsys/xxx/yyy:state' strings which are used in all the other places already. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Link: http://lkml.kernel.org/r/20161221192112.085444152@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-17Merge tag 'mvebu-fixes-4.8-3' of git://git.infradead.org/linux-mvebu into fixesOlof Johansson1-3/+1
mvebu fixes for 4.8 (part 3) - Select corediv clk for all mvebu v7 SoC - Fix clocksource for CP110 master SPI0 for Armada 7K/8K * tag 'mvebu-fixes-4.8-3' of git://git.infradead.org/linux-mvebu: arm64: dts: marvell: fix clocksource for CP110 master SPI0 ARM: mvebu: Select corediv clk for all mvebu v7 SoC Signed-off-by: Olof Johansson <olof@lixom.net>
2016-09-19ARM: mvebu: Select corediv clk for all mvebu v7 SoCGregory CLEMENT1-3/+1
Since the commit bd3677ff31a3 ("clk: mvebu: Remove corediv clock from Armada XP"), the corediv clk is no more selected for Armada XP, however this clock is used for Armada XP using the compatible armada-370-corediv-clock. While since commit 1594d568c6e3 ("clk: mvebu: Move corediv config to mvebu config") Armada 38x and Armada 375 got corediv support again, not only Armada XP was missed but also Armada 39x. Actually all the SoC selecting MVEBU_V7 config need this clock: git grep "\-corediv-clock" arch/arm/boot/dts arch/arm/boot/dts/armada-370-xp.dtsi: compatible = "marvell,armada-370-corediv-clock"; arch/arm/boot/dts/armada-375.dtsi: compatible = "marvell,armada-375-corediv-clock"; arch/arm/boot/dts/armada-38x.dtsi: compatible = "marvell,armada-380-corediv-clock"; arch/arm/boot/dts/armada-39x.dtsi: compatible = "marvell,armada-390-corediv-clock" This commit now fixes this behavior by letting MVEBU_V7 select MVEBU_CLK_COREDIV. Fixes: bd3677ff31a3 ("clk: mvebu: Remove corediv clock from Armada XP") Cc: stable@vger.kernel.org Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-08-10ARM: don't include removed directoriesArnd Bergmann1-2/+1
Three platforms used to have header files in include/mach that are now all gone, but the removed directories are still being included, which leads to -Wmissing-include-dirs warnings. This removes the extra -I flags. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-08-01Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds8-7/+12
Pull ARM SoC cleanups from Olof Johansson: "The cleanup branch keeps going down in size as we've completed a lot of the major legacy platform removals and conversions. A handful of changes this time around, some of the themes or larger sets are: - A bunch of i.MX cleanups around platform detection, init call cleanups - Misc fixes of missing/implicit includes - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits) ARM: mps2: fix typo ARM: s3c64xx: avoid warning about 'struct device_node' bus: mvebu-mbus: make mvebu_mbus_syscore_ops static bus: mvebu-mbus: fix __iomem on register pointers ARM: tegra: Remove board_init_funcs array ARM: iop: Fix indentation ARM: imx: remove cpu_is_mx*() ARM: imx: remove last call to cpu_is_mx5* ARM: imx: rework mx27_pm_init() call ARM: imx: deconstruct mx3_idle ARM: imx: deconstruct mxc_rnga initialization ARM: imx: remove cpu_is_mx1 check ARM: i.MX: Do not explicitly call l2x0_of_init() ARM: i.MX: system.c: Tweak prefetch settings for performance ARM: i.MX: system.c: Replace magic numbers ARM: i.MX: system.c: Remove redundant errata 752271 code ARM: i.MX: system.c: Convert goto to if statement ARM: Kirkwood: fix kirkwood_pm_init() declaration/type ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static ARM: orion5x: make orion5x_legacy_handle_irq static ...
2016-07-30Merge tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds3-6/+1
Pull DeviceTree updates from Rob Herring: - remove most of_platform_populate() calls in arch code. Now the DT core code calls it in the default case and platforms only need to call it if they have special needs - use pr_fmt on all the DT core print statements - CoreSight binding doc improvements to block name descriptions - add dt_to_config script which can parse dts files and list corresponding kernel config options - fix memory leak hit with a PowerMac DT - correct a bunch of STMicro compatible strings to use the correct vendor prefix - fix DA9052 PMIC binding doc to match what is actually used in dts files * tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits) documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table" xtensa: Fix build error due to missing include file MIPS: ath79: Add missing include file Fix spelling errors in Documentation/devicetree ARM: dts: fix STMicroelectronics compatible strings powerpc/dts: fix STMicroelectronics compatible strings Documentation: dt: i2c: use correct STMicroelectronics vendor prefix scripts/dtc: dt_to_config - kernel config options for a devicetree of: fdt: mark unflattened tree as detached of: overlay: add resolver error prints coresight: document binding acronyms Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties of: use pr_fmt prefix for all console printing of/irq: Mark initialised interrupt controllers as populated of: fix memory leak related to safe_name() Revert "of/platform: export of_default_bus_match_table" of: unittest: use of_platform_default_populate() to populate default bus memory: omap-gpmc: use of_platform_default_populate() to populate default bus bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus ...
2016-07-29Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-13/+6
Pull smp hotplug updates from Thomas Gleixner: "This is the next part of the hotplug rework. - Convert all notifiers with a priority assigned - Convert all CPU_STARTING/DYING notifiers The final removal of the STARTING/DYING infrastructure will happen when the merge window closes. Another 700 hundred line of unpenetrable maze gone :)" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) timers/core: Correct callback order during CPU hot plug leds/trigger/cpu: Move from CPU_STARTING to ONLINE level powerpc/numa: Convert to hotplug state machine arm/perf: Fix hotplug state machine conversion irqchip/armada: Avoid unused function warnings ARC/time: Convert to hotplug state machine clocksource/atlas7: Convert to hotplug state machine clocksource/armada-370-xp: Convert to hotplug state machine clocksource/exynos_mct: Convert to hotplug state machine clocksource/arm_global_timer: Convert to hotplug state machine rcu: Convert rcutree to hotplug state machine KVM/arm/arm64/vgic-new: Convert to hotplug state machine smp/cfd: Convert core to hotplug state machine x86/x2apic: Convert to CPU hotplug state machine profile: Convert to hotplug state machine timers/core: Convert to hotplug state machine hrtimer: Convert to hotplug state machine x86/tboot: Convert to hotplug state machine arm64/armv8 deprecated: Convert to hotplug state machine hwtracing/coresight-etm4x: Convert to hotplug state machine ...
2016-07-14ARM/mvebu: Convert to hotplug state machineSebastian Andrzej Siewior1-13/+6
Install the callbacks via the state machine. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153333.503198935@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-04Merge tag 'mvebu-cleanup-4.8-1' of git://git.infradead.org/linux-mvebu into next/cleanupOlof Johansson7-5/+10
mvebu cleanup for 4.8 (part 1) Various warning fixes * tag 'mvebu-cleanup-4.8-1' of git://git.infradead.org/linux-mvebu: ARM: Kirkwood: fix kirkwood_pm_init() declaration/type ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static ARM: orion5x: make orion5x_legacy_handle_irq static mvebu: add definition for coherency_base mvebu: make mvebu_armada375_smp_wa_init() static mvebu: fix missing include of common.h in cpu-reset.c mvebu: fix missing include of common.h in pm.c mvebu: fix missing includes in pmsu.c Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-30ARM: mvebu: compile pm code conditionallyArnd Bergmann1-2/+8
A cleanup to include the headers correctly caused another build problem: arch/arm/mach-mvebu/kirkwood-pm.c:70:13: error: redefinition of 'kirkwood_pm_init' arch/arm/mach-mvebu/kirkwood-pm.h:23:20: note: previous definition of 'kirkwood_pm_init' was here The underlying issue is that kirkwood-pm.o is not actually meant to be used when CONFIG_PM is disabled, so we should also leave it out of the Makefile. The same seems to be true for the PM code in MACH_MVEBU_V7, and I'm treating it the same way here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: d705c1a66e15 ("ARM: Kirkwood: fix kirkwood_pm_init() declaration/type") Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-23arm: use of_platform_default_populate() to populateKefeng Wang1-1/+1
Use helper of_platform_default_populate() in linux/of_platform when possible, instead of calling of_platform_populate() with the default match table. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Roland Stigge <stigge@antcom.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Ray Jui <rjui@broadcom.com> Cc: Viresh Kumar <vireshk@kernel.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Rob Herring <robh@kernel.org> Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-23arm: Remove unnecessary of_platform_populate with default match tableKefeng Wang2-5/+0
After patch "of/platform: Add common method to populate default bus", it is possible for arch code to remove unnecessary callers of of_platform_populate with default match table. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Lee Jones <lee@kernel.org> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Kukjin Kim <kgene@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Viresh Kumar <vireshk@kernel.org> Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-16ARM: mvebu: map PCI I/O regions strongly orderedThomas Petazzoni1-0/+1
In order for HW I/O coherency to work on Cortex-A9 based Marvell SoCs, all MMIO registers must be mapped strongly ordered. In commit 1c8c3cf0b5239 ("ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type") we implemented a new function, pci_ioremap_set_mem_type(), that allow sub-architecture code to override the memory type used to map PCI I/O regions. In the discussion around this patch series [1], Arnd Bergmann made the comment that maybe all PCI I/O regions should be mapped strongly-ordered, which would have made our proposal to add pci_ioremap_set_mem_type() irrelevant. So, we submitted a patch [2] that did what Arnd suggested. However, Russell in the end merged our initial proposal to add pci_ioremap_set_mem_type(), but it was never used anywhere. Further discussion with Arnd and other folks on IRC lead to the conclusion that in fact using strongly-ordered for all platforms was maybe not desirable, and therefore, using pci_ioremap_set_mem_type() was the most appropriate solution. As a consequence, this commit finally adds the pci_ioremap_set_mem_type() call in the mach-mvebu platform code, which was originally part of our initial patch series [3] and is necessary for the whole mechanism to work. [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/256565.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/256755.html [3] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/256563.html Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16ARM: mvebu: fix HW I/O coherency related deadlocksThomas Petazzoni1-14/+8
Until now, our understanding for HW I/O coherency to work on the Cortex-A9 based Marvell SoC was that only the PCIe regions should be mapped strongly-ordered. However, we were still encountering some deadlocks, especially when testing the CESA crypto engine. After checking with the HW designers, it was concluded that all the MMIO registers should be mapped as strongly ordered for the HW I/O coherency mechanism to work properly. This fixes some easy to reproduce deadlocks with the CESA crypto engine driver (dmcrypt on a sufficiently large disk partition). Tested-by: Terry Stockert <stockert@inkblotadmirer.me> Tested-by: Romain Perier <romain.perier@free-electrons.com> Cc: Terry Stockert <stockert@inkblotadmirer.me> Cc: Romain Perier <romain.perier@free-electrons.com> Cc: <stable@vger.kernel.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16ARM: Kirkwood: fix kirkwood_pm_init() declaration/typeBen Dooks1-2/+2
The kirkwood-pm.c was missing the include of kirkwood-pm.h to define the kirkwood_pm_init() function. However once this is included, the types do not match. Fixup the include, and then the prototype to avoid the following warning: arch/arm/mach-mvebu/kirkwood-pm.c:69:12: warning: symbol 'kirkwood_pm_init' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() staticBen Dooks1-1/+1
The kirkwood_disable_mbus_error_propagation is not exported or declared elsewhere, so make it static to avoid the following warning: arch/arm/mach-mvebu/kirkwood.c:153:6: warning: symbol 'kirkwood_disable_mbus_error_propagation' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: add definition for coherency_baseBen Dooks1-0/+1
Fix the warning that coherency_base is not defined by adding it to coherency.h (it is only used in the coherency_ll.S): arch/arm/mach-mvebu/coherency.c:41:14: warning: symbol 'coherency_base' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: make mvebu_armada375_smp_wa_init() staticBen Dooks1-1/+1
The mvebu_armada375_smp_wa_init() is not exported or declared anywhere, so make it static to fix the following warning: arch/arm/mach-mvebu/system-controller.c:130:6: warning: symbol 'mvebu_armada375_smp_wa_init' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: fix missing include of common.h in cpu-reset.cBen Dooks1-0/+2
The mvebu_cpu_reset_deassert() is missing the definition for it, so include common.h where it is defined to fix the warning: arch/arm/mach-mvebu/cpu-reset.c:25:5: warning: symbol 'mvebu_cpu_reset_deassert' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: fix missing include of common.h in pm.cBen Dooks1-0/+1
The mvebu_pm_suspend_init() is missing a definition, so include common.h which defines this function into pm.c to fix the following warning: arch/arm/mach-mvebu/pm.c:235:12: warning: symbol 'mvebu_pm_suspend_init' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: fix missing includes in pmsu.cBen Dooks1-1/+2
The file is missing definitions for some functions due to not including two header files. Fix the following warnings by including "pmsu.h" and <linux/mvebu-pmsu.h> in pmsu.c: arch/arm/mach-mvebu/pmsu.c:127:5: warning: symbol 'mvebu_setup_boot_addr_wa' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:267:5: warning: symbol 'armada_370_xp_pmsu_idle_enter' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:313:5: warning: symbol 'armada_38x_do_cpu_suspend' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:340:6: warning: symbol 'mvebu_v7_pmsu_idle_exit' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:570:5: warning: symbol 'mvebu_pmsu_dfs_request' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-03ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIBLinus Walleij1-2/+2
This replaces: - "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. - "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB is now selectable by everyone, so we need not declare our intent to select it. When ordering the symbols the following rationale was used: if the selects were in alphabetical order, I moved select GPIOLIB to be in alphabetical order, but if the selects were not maintained in alphabetical order, I just replaced "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB". Cc: Michael Büsch <m@bues.ch> Cc: arm@kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-04-28cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/Viresh Kumar1-85/+0
Move cpufreq bits for mvebu into drivers/cpufreq/ directory, that's where they really belong to. Compiled tested only. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as sharedViresh Kumar1-7/+7
That will allow us to avoid using cpufreq-dt platform data. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-03-23Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds1-0/+3
Pull clk updates from Stephen Boyd: "The clk changes for this release cycle are mostly dominated by new device support in terms of LoC, but there has been some cleanup in the core as well as the usual minor clk additions to various drivers. Core: - parent tracking has been simplified - CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started - of_clk_init() doesn't consider disabled DT nodes anymore - clk_unregister() had an error path bug squashed - of_clk_get_parent_count() has been fixed to only return unsigned ints - HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone New Drivers: - NXP LPC18xx creg - QCOM IPQ4019 GCC - TI dm814x ADPLL - i.MX6QP Updates: - Cyngus audio clks found on Broadcom iProc devices - Non-critical fixes for BCM2385 PLLs - Samsung exynos5433 updates for clk id errors, HDMI support, suspend/resume simplifications - USB, CAN, LVDS, and FCP clks on shmobile devices - sunxi got support for more clks on new SoCs and went through a minor refactoring/rewrite to use a simpler factor clk construct - rockchip added some more clk ids and added suport for fraction dividers - QCOM GDSCs in msm8996 - A new devm helper to make adding custom actions simpler (acked by Greg)" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (197 commits) clk: bcm2835: fix check of error code returned by devm_ioremap_resource() clk: renesas: div6: use RENESAS for #define clk: renesas: Rename header file renesas.h clk: max77{686,802}: Remove CLK_IS_ROOT clk: versatile: Remove CLK_IS_ROOT clk: sunxi: Remove use of variable length array clk: fixed-rate: Remove CLK_IS_ROOT clk: qcom: Remove CLK_IS_ROOT doc: dt: add documentation for lpc1850-creg-clk driver clk: add lpc18xx creg clk driver clk: lpc32xx: fix compilation warning clk: xgene: Add missing parenthesis when clearing divider value clk: mb86s7x: Remove CLK_IS_ROOT clk: x86: Remove clkdev.h and clk.h includes clk: x86: Remove CLK_IS_ROOT clk: mvebu: Remove CLK_IS_ROOT clk: renesas: move drivers to renesas directory clk: si5{14,351,70}: Remove CLK_IS_ROOT clk: scpi: Remove CLK_IS_ROOT clk: s2mps11: Remove CLK_IS_ROOT ...
2016-03-20Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-0/+1
Pull ARM SoC cleanups from Arnd Bergmann: "A few simple cleanups across multiple platforms, not much standing out: - lpc32xx removes its private implementation of the clk API, after generic code was merged in 4.5 - all unused Makefile.boot files get removed - a number of simplifications for shmobile - asm/clkdev.h gets replaced with the asm-generic version after all mach/clkdev.h implementations are gone" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: shmobile: Kconfig: Get rid of old comment ARM: shmobile: Consolidate SCU mapping code arm: lpc32xx: remove direct control of GPIOs from shared mach file arm: lpc32xx: remove selected HAVE_IDE arm: lpc32xx: switch to common clock framework ARM: Use generic clkdev.h header ARM: plat-versatile: Remove unused clock.c file ARM: netx: remove redundant "depends on ARCH_NETX" ARM: integrator: remove redundant select in Kconfig ARM: drop unused Makefile.boot of Multiplatform SoCs ARM: mvebu: add missing of_node_put() ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code ARM: shmobile: Typo s/MIPDR/MPIDR/ ARM: shmobile: Add includes providing forward declarations ARM: shmobile: rcar-gen2: Make rcar_gen2_dma_contiguous static ARM: mv78xx0: use "depends on" instead of "if" after prompt
2016-03-20Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM SoC non-urgent fixes from Arnd Bergmann: "As usual, we queue up a few fixes that don't seem urgent enough to go in through -rc. - a number of randconfig warning fixes from Arnd - various small fixes for OMAP - one somewhat larger patch to restore the OMAP3 cpuidle tuning that was lost in a cleanup - a small regression fix for cns3xxx PCI" * tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits) CNS3xxx: Fix PCI cns3xxx_write_config() MAINTAINERS: unify email addrs for Kevin Hilman CNS3xxx: remove unused *_VIRT definitions ARM: OMAP2+: Fix hwmod clock for l4_ls soc: TI knav_qmss: fix dma_addr_t printing ARM: prima2: always enable reset controller ARM: socfpga: hide unused functions ARM: ux500: fix ureachable iounmap() ARM: ks8695: fix __initdata annotation ARM: mvebu: mark mvebu_hwcc_pci_nb as __maybe_unused ARM: mv78xx0: avoid unused function warning ARM: orion: only select I2C_BOARDINFO when using I2C ARM: OMAP2+: Fix out of range register access with syscon_config.max_register ARM: OMAP3: Add cpuidle parameters table for omap3430 ARM: davinci: make I2C support optional ARM: davinci: DA8xx+DMx combined kernels need PATCH_PHYS_VIRT ARM: davinci: avoid unused mityomapl138_pn_info variable ARM: davinci: limit DT support to DA850 ARM: DRA7: hwmod: Add reset data for PCIe ARM: DRA7: hwmod: Fix OCP2SCP sysconfig ...
2016-02-25clk: mvebu: Move corediv config to mvebu configKevin Smith1-0/+3
The core clock does not depend on corediv, so enabling corediv based on the clock is not really correct. Move the corediv config option from the clock driver Kconfig to the mvebu Kconfig so that it can be enabled by the MACH option instead. This also enables corediv on Armada 375 and 38X, which was previously missing. Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-02-25ARM: mvebu: mark mvebu_hwcc_pci_nb as __maybe_unusedArnd Bergmann1-1/+1
The coherency notifier block is only used when CONFIG_PCI is enabled, otherwise we get a warning: arch/arm/mach-mvebu/coherency.c:110:30: warning: 'mvebu_hwcc_pci_nb' defined but not used [-Wunused-variable] There is no nice way to use an if(IS_ENABLED()) check here to let the compiler know that it might be used, so let's mark the structure as __maybe_unused. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-02-16ARM: mvebu: Use the ARMADA_370_XP_IRQ optionThomas Petazzoni1-1/+5
Now that there is a ARMADA_370_XP_IRQ option to enable the irqchip driver for Armada 370, XP, 375, 38x and 39x, let's select this option when needed. Note that this selection is currently not mandatory because ARMADA_370_XP_IRQ is for now always enabled when ARCH_MVEBU=y, but this is something that we will change in the future, and therefore we should make the relevant platforms select ARMADA_370_XP_IRQ when needed. Due to this, selecting GENERIC_IRQ_CHIP is no longer needed. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1455115621-22846-7-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2016-02-08ARM: mvebu: add missing of_node_put()Masahiro Yamada1-0/+1
This node pointer is returned by of_find_compatible_node() in this function. It should be put before exitting this function. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-12-15Merge tag 'mvebu-cleanup-4.5-1' of git://git.infradead.org/linux-mvebu into next/cleanupArnd Bergmann1-1/+0
Merge "mvebu cleanup for 4.5 (part 1)" from Gregory CLEMENT: remove unused mach/gpio.h in mach-mvebu * tag 'mvebu-cleanup-4.5-1' of git://git.infradead.org/linux-mvebu: ARM: mvebu: remove unused mach/gpio.h
2015-12-01ARM: use "depends on" for SoC configs instead of "if" after promptMasahiro Yamada1-8/+16
Many ARM sub-architectures use prompts followed by "if" conditional, but it is wrong. Please notice the difference between config ARCH_FOO bool "Foo SoCs" if ARCH_MULTI_V7 and config ARCH_FOO bool "Foo SoCs" depends on ARCH_MULTI_V7 These two are *not* equivalent! In the former statement, it is not ARCH_FOO, but its prompt that depends on ARCH_MULTI_V7. So, it is completely valid that ARCH_FOO is selected by another, but ARCH_MULTI_V7 is still disabled. As it is not unmet dependency, Kconfig never warns. This is probably not what you want. The former should be used only when you need to do so, and you really understand what you are doing. (In most cases, it should be wrong!) For enabling/disabling sub-architectures, the latter is always correct. As a good side effect, this commit fixes some entries over 80 columns (mach-imx, mach-integrator, mach-mbevu). [Arnd: I note that there is not really a bug here, according to the discussion that followed, but I can see value in being consistent and in making the lines shorter] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Jun Nie <jun.nie@linaro.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Krzysztof Halasa <khc@piap.pl> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01ARM: use const and __initconst for smp_operationsMasahiro Yamada3-4/+4
These smp_operations structures are not over-written, so add "const" qualifier and replace __initdata with __initconst. Also, add "static" where it is possible. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> # qcom part Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Wei Xu <xuwei5@hisilicon.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01ARM: mvebu: remove unused mach/gpio.hArnd Bergmann1-1/+0
This file was left over from a cleanup of asm/gpio.h and has not been used in a while. Let's just remove it now, so the arch/arm/mach-mvebu/include/ directory can also disappear. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-11-10Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2-3/+86
Pull ARM SoC platform updates from Olof Johansson: "New and/or improved SoC support for this release: Marvell Berlin: - Enable standard DT-based cpufreq - Add CPU hotplug support Freescale: - Ethernet init for i.MX7D - Suspend/resume support for i.MX6UL Allwinner: - Support for R8 chipset (used on NTC's $9 C.H.I.P board) Mediatek: - SMP support for some platforms Uniphier: - L2 support - Cleaned up SMP support, etc. plus a handful of other patches around above functionality, and a few other smaller changes" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) ARM: uniphier: rework SMP operations to use trampoline code ARM: uniphier: add outer cache support Documentation: EXYNOS: Update bootloader interface on exynos542x ARM: mvebu: add broken-idle option ARM: orion5x: use mac_pton() helper ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned ARM: sunxi: Add R8 support ARM: digicolor: select pinctrl/gpio driver arm: berlin: add CPU hotplug support arm: berlin: use non-self-cleared reset register to reset cpu ARM: mediatek: add smp bringup code ARM: mediatek: enable gpt6 on boot up to make arch timer working soc: mediatek: Fix random hang up issue while kernel init soc: ti: qmss: make acc queue support optional in the driver soc: ti: add firmware file name as part of the driver Documentation: dt: soc: Add description for knav qmss driver ARM: S3C64XX: Use PWM lookup table for mach-smartq ARM: S3C64XX: Use PWM lookup table for mach-hmt ARM: S3C64XX: Use PWM lookup table for mach-crag6410 ARM: S3C64XX: Use PWM lookup table for smdk6410 ...
2015-11-10Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2-37/+2
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 platforms There'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 ...
2015-11-03ARM: mvebu: remove static LED setup for netxbig boardsSimon Guinot5-224/+0
Since DT support is now available for the LEDs found on the LaCie netxbig boards (Kirkwood-based), then the old-fashion netxbig board setup file is no longer needed. This patch removes this file. Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-10-23ARM: mvebu: add broken-idle optionVincent Donnefort1-3/+26
The broken-idle option can be activated from the coherency-fabric DT node. This property allows to disable the idle capability, when the hardware doesn't support it, like the Seagate Personal Cloud boards. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-10-15ARM: mvebu: remove the workaround imprecise abort fault handlerLucas Stach1-35/+0
This is not needed anymore. Handling a potentially pending imprecise external abort left behind by the bootloader is now done in a slightly safer way inside the common ARM startup code. [gregory.clement@free-electrons.com: Beside the Armada 375 Z1 which initially required this, is no more supported] Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-09-29ARM: mvebu: Use a CR_C constant instead of a hard-coded oneGregory CLEMENT1-2/+2
Fix the armada_370_xp_pmsu_idle_enter() function to use a CR_C constant instead of a hard-coded constant in the assembly part. This clean-up was suggested by Russell King. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-09-29ARM: mvebu: add support to clear shared L2 bit on Armada XPThomas Petazzoni1-0/+60
For optimal performance, in a HW I/O coherency context such as the one used on Armada XP, the shared L2 bit of the CPU configuration register should be cleared. This commit adjusts the coherency fabric code used by Marvell EBU processors to clear this bit on Armada XP. Since it's a per-CPU register, it's cleared in set_cpu_coherent() for the boot CPU, and through a CPU notifier for the non-boot CPUs. [gregory.clement@free-electrons.com: rebasd on 4.3-rc1] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>