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* ARM: shmobile: r8a7779: scif .irqs used SCIx_IRQ_MUXED()Kuninori Morimoto2013-01-24
| | | | | | | | This patch tidyup scif .irqs settings by using SCIx_IRQ_MUXED() macro. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: mach-shmobile: sh73a0: Initialise MMCIF using DTSimon Horman2013-01-24
| | | | | | | | | | | | | | | | | | | | | | This device also requires a voltage regulator which should be defined in a board-specific maner. An example dts snipped follows. / { fixedregulator1v8: fixedregulator@0 { compatible = "regulator-fixed"; regulator-name = "fixed-1.8V"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; }; }; &mmcif { vmmc-supply = <&fixedregulator1v8>; vqmmc-supply = <&fixedregulator1v8>; }; Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: mach-shmobile: sh73a0: Minimal setup using DTSimon Horman2013-01-24
| | | | | | | | | | | | | | | | | | | | | | Allow a minimal setup of the sh73a0 SoC using a flattened device tree. In particular, Configure the i2c controllers using a flattened device tree. SCI serial controller and CMT clock source, whose drivers do not yet support configuration using a flattened device tree, are still configured using C code in order to allow booting of a board with this SoC. *** Please note that the clock initialisation scheme used in this patch does not currently work with SMP as there is a yet to be resolved lock-up in workqueue initialisation. CONFIG_SMP must be disabled when using this code. *** Includes update from Thierry Reding to no longer use gic_handle_irq() Cc: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> fix
* ARM: mach-shmobile: sh73a0: Allow initialisation of GIC by DTSimon Horman2013-01-24
| | | | | | | | | | | | | | | | | | | This allows the GIC interrupt controller of the sh73a0 SoC to be initialised using a flattened device tree blob. It does not allow the INTC interrupt controller which is also present on the sh73a0 SoC to be enabled via device tree. Nor does it handle sharing of interrupts between the GIC and INTC interrupt controllers. This limits the usefulness of this code to applications which only wish to access devices which use interrupts that can be handled by the GIC interrupt controller. Other applications should, for now, continue using non-device tree initialisation of the sh72a0 interrupt controllers. Includes update to use irqchip_init() by Thierry Reding Cc: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: SH-Mobile: sh73a0: Add CPU HotplugBastian Hecht2013-01-24
| | | | | | | | | | | Add the capability to add and remove CPUs on the fly. The Cortex-A9 offers the possibility to take single cores out of the MP Core. We add this capabilty taking care that caches are kept coherent. For verifying the shutdown we rely on the internal SH73A0 Power Status Register PSTR. Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: SH-Mobile: sh73a0: Secondary CPUs handle own SCU flagsBastian Hecht2013-01-24
| | | | | | | | | | | | | | | | When booting secondary CPUs we have used the main CPU to set up the Snoop Control Unit flags of these CPUs. It is a cleaner approach if every CPU takes care of its own flags. We avoid the need for locking and the program logic is more concise. With this patch the file headsmp-sh73a0.S is added that contains a startup vector for secondary CPUs that sets up its own SCU flags. Further in sh73a0_smp_prepare_cpus() we can rely on the generic ARM helper scu_power_mode(). This is possible as we don't cross borders anymore (every CPU handles its own flags) and need no locking. So we can throw out the needless function modify_scu_cpu_psr(). Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: shmobile: r8a7740: Add CPU sleep suspendBastian Hecht2013-01-24
| | | | | | | | | | | | Add the lighest possible sleep mode on Cortex-A9 cores: CPU sleep. It is entered by a simple dsb and wfi instruction via cpu_do_idle(). As just clocks are stopped there is no need to save or restore any state of the system. Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Acked-by: Magnus Damm <damm@opensource.se> [ horms@verge.net.au: Added missing includes ] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: shmobile: sh73a0: Add CPU sleep suspendBastian Hecht2013-01-24
| | | | | | | | | | | Add the lighest possible sleep mode on Cortex-A9 cores: CPU sleep. It is entered by a simple dsb and wfi instruction via cpu_do_idle(). As just clocks are stopped there is no need to save or restore any state of the system. Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: shmobile: add function declarations for sh7372 DT helper functionsGuennadi Liakhovetski2013-01-24
| | | | | | | | | | sh7372_add_early_devices_dt() and sh7372_add_standard_devices_dt() are defined as global functions in arch/arm/mach-shmobile/setup-sh7372.c, but their declarations are missing. Add them to common.h, where similar functions for this and other SoC types are already declared. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Simon Horman <horms@verge.net.au>
* ARM: sh7372: fix cache clean / invalidate orderGuennadi Liakhovetski2013-01-24
| | | | | | | | | According to the Cortex A8 TRM the L2 cache should be first cleaned and then disabled. Fix the swapped order on sh7372. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: sh7372: add clock lookup entries for DT-based devicesGuennadi Liakhovetski2013-01-24
| | | | | | | | When booting with DT, devices are named differently. To get their clocks additional entries have to be added to the lookup table. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Simon Horman <horms@verge.net.au>
* ARM: mach-shmobile: sh73a0 external IRQ wake updateMagnus Damm2013-01-24
| | | | | | | | | | | | | | | | | | Use sh73a0_set_wake() for external IRQ signals on sh73a0. The sh73a0 IRQ hardware for external IRQ pins consists of the INTCA interrupt controller and the GIC together doing their best to limp along. These external IRQ pins are treated as a special case where interrupts need to be managed in both interrupt controllers in parallel. The ->irq_set_wake() callback for the external IRQ pins can be dealt with in the same way as INTCA-only without involving the GIC. So this patch updates the external IRQ pin code for sh73a0 to no longer involve the GIC. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: shmobile: sh73a0: fixup div4_clks bitmapKuninori Morimoto2013-01-24
| | | | | | | | div4_clks's bitmap of sh73a0 was wrong. This patch is based on v2.0 datasheet. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: shmobile: r8a7740: add TMU timer supportKuninori Morimoto2013-01-24
| | | | | | | | This patch enabled TMU0 timer on r8a7740. But TMU1 timer is not supported yet Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* ARM: shmobile: Remove duplicate inclusion of dma-mapping.h in setup-r8a7740.cSachin Kamat2013-01-24
| | | | | | | linux/dma-mapping.h was included twice. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Merge remote-tracking branches 'arm-soc/irqchip/gic-vic-move' and ↵Simon Horman2013-01-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'arm-soc/timer/cleanup' into soc Conflicts: arch/arm/mach-bcm/board_bcm.c arch/arm/mach-cns3xxx/cns3420vb.c arch/arm/mach-ep93xx/adssphere.c arch/arm/mach-ep93xx/edb93xx.c arch/arm/mach-ep93xx/gesbc9312.c arch/arm/mach-ep93xx/micro9.c arch/arm/mach-ep93xx/simone.c arch/arm/mach-ep93xx/snappercl15.c arch/arm/mach-ep93xx/ts72xx.c arch/arm/mach-ep93xx/vision_ep9307.c arch/arm/mach-highbank/highbank.c arch/arm/mach-imx/mach-imx6q.c arch/arm/mach-msm/board-dt-8960.c arch/arm/mach-netx/nxdb500.c arch/arm/mach-netx/nxdkn.c arch/arm/mach-netx/nxeb500hmi.c arch/arm/mach-nomadik/board-nhk8815.c arch/arm/mach-picoxcell/common.c arch/arm/mach-realview/realview_eb.c arch/arm/mach-realview/realview_pb1176.c arch/arm/mach-realview/realview_pb11mp.c arch/arm/mach-realview/realview_pba8.c arch/arm/mach-realview/realview_pbx.c arch/arm/mach-socfpga/socfpga.c arch/arm/mach-spear13xx/spear1310.c arch/arm/mach-spear13xx/spear1340.c arch/arm/mach-spear13xx/spear13xx.c arch/arm/mach-spear3xx/spear300.c arch/arm/mach-spear3xx/spear310.c arch/arm/mach-spear3xx/spear320.c arch/arm/mach-spear3xx/spear3xx.c arch/arm/mach-spear6xx/spear6xx.c arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c arch/arm/mach-u300/core.c arch/arm/mach-ux500/board-mop500.c arch/arm/mach-ux500/cpu-db8500.c arch/arm/mach-versatile/versatile_ab.c arch/arm/mach-versatile/versatile_dt.c arch/arm/mach-versatile/versatile_pb.c arch/arm/mach-vexpress/v2m.c include/asm-generic/vmlinux.lds.h
| * ARM: at91: fix board-rm9200-dt after sys_timer conversionJoachim Eastwood2013-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After "ARM: delete struct sys_timer" board-rm9200-dt fails compilation with the following error: CC arch/arm/mach-at91/board-rm9200-dt.o arch/arm/mach-at91/board-rm9200-dt.c:50:2: error: unknown field 'timer' specified in initializer arch/arm/mach-at91/board-rm9200-dt.c:50:13: error: 'at91rm9200_timer' undeclared here (not in a function) make[1]: *** [arch/arm/mach-at91/board-rm9200-dt.o] Error 1 make: *** [arch/arm/mach-at91] Error 2 This is a fall out from the timer conversion. Fix it by converting board-rm9200-dt to use new timer init function as well. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: sunxi: fix struct sys_timer removalStephen Warren2013-01-08
| | | | | | | | | | | | | | | | | | | | | | | | Commit 6bb27d7 "ARM: delete struct sys_timer" removed struct sys_timer, but didn't update mach-sunxi/sunxi.c for this change, even though the sunxi timer implementation itself was updated. This caused a build break: arch/arm/mach-sunxi/sunxi.c:94:2: error: unknown field 'timer' specified in initializer arch/arm/mach-sunxi/sunxi.c:94:12: error: 'sunxi_timer' undeclared here (not in a function) Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
| * clocksource: add common of_clksrc_init() functionStephen Warren2013-01-02
| | | | | | | | | | | | | | | | | | | | | | | | It is desirable to move all clocksource drivers to drivers/clocksource, yet each requires its own initialization function. We'd rather not pollute <linux/> with a header for each function. Instead, create a single of_clksrc_init() function which will determine which clocksource driver to initialize based on device tree. Based on a similar patch for drivers/irqchip by Thomas Petazzoni. Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: delete struct sys_timerStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: remove struct sys_timer suspend and resume fieldsStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | These fields duplicate e.g. struct clock_event_device's suspend and resume fields, so remove them now that nothing is using them. The aim is to remove all fields from struct sys_timer except .init, then replace the ARM machine descriptor's .timer field with a .init_time function instead, and delete struct sys_timer. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: samsung: register syscore_ops for timer resume directlyStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | Instead of using struct sys_timer's resume function, register syscore_ops directly in s3c2410_timer_init(). This will allow the sys_timer suspend/ resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: ux500: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | Move ux500's timer suspend/resume functions from struct sys_timer ux500_timer into struct clock_event_device nmdk_clkevt. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: sa1100: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | Move sa1100's timer suspend/resume functions from struct sys_timer sa1100_timer into struct clock_event_device ckevt_sa1100_osmr0. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: pxa: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | Move PXA's timer suspend/resume functions from struct sys_timer pxa_timer into struct clock_event_device ckevt_pxa_osmr0. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: at91: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | Move at91's timer suspend/resume functions from struct sys_timer at91sam926x_timer into struct clock_event_device pit_clkevt. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: set arch_gettimeoffset directlyStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remove ARM's struct sys_timer .offset function pointer, and instead directly set the arch_gettimeoffset function pointer when the timer driver is initialized. This requires multiplying all function results by 1000, since the removed arm_gettimeoffset() did this. Also, s/unsigned long/u32/ just to make the function prototypes exactly match that of arch_gettimeoffset. Cc: Russell King <linux@arm.linux.org.uk> Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * m68k: set arch_gettimeoffset directlyStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | remove m68k's mach_gettimeoffset function pointer, and instead directly set the arch_gettimeoffset function pointer. This requires multiplying all function results by 1000, since the removed m68k_gettimeoffset() did this. Also, s/unsigned long/u32/ just to make the function prototypes exactly match that of arch_gettimeoffset. Cc: Joshua Thompson <funaho@jurai.org> Cc: Sam Creasey <sammy@sammy.net> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Phil Blundell <philb@gnu.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * time: convert arch_gettimeoffset to a pointerStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, whenever CONFIG_ARCH_USES_GETTIMEOFFSET is enabled, each arch core provides a single implementation of arch_gettimeoffset(). In many cases, different sub-architectures, different machines, or different timer providers exist, and so the arch ends up implementing arch_gettimeoffset() as a call-through-pointer anyway. Examples are ARM, Cris, M68K, and it's arguable that the remaining architectures, M32R and Blackfin, should be doing this anyway. Modify arch_gettimeoffset so that it itself is a function pointer, which the arch initializes. This will allow later changes to move the initialization of this function into individual machine support or timer drivers. This is particularly useful for code in drivers/clocksource which should rely on an arch-independant mechanism to register their implementation of arch_gettimeoffset(). This patch also converts the Cris architecture to set arch_gettimeoffset directly to the final implementation in time_init(), because Cris already had separate time_init() functions per sub-architecture. M68K and ARM are converted to set arch_gettimeoffset to the final implementation in later patches, because they already have function pointers in place for this purpose. Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * cris: move usec/nsec conversion to do_slow_gettimeoffsetStephen Warren2012-12-24
| | | | | | | | | | | | | | | | | | | | | | | | Move usec to nsec conversion from arch_gettimeoffset() to do_slow_gettimeoffset(); in a future patch, do_slow_gettimeoffset() will be used directly as the implementation of arch_gettimeoffset(), so needs to perform all required calculations. Cc: Mikael Starvik <starvik@axis.com> Cc: linux-cris-kernel@axis.com Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.hRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have VIC moved to drivers/irqchip and all VIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org
* | ARM: picoxcell: use common irqchip_init functionRob Herring2013-01-12
| | | | | | | | | | Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Jamie Iles <jamie@jamieiles.com>
* | ARM: spear: use common irqchip_init functionRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | Convert spear DT irq initialization over to use common irqchip_init function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
* | irqchip: Move ARM VIC to drivers/irqchipRob Herring2013-01-12
| | | | | | | | | | | | | | | | Now that we have drivers/irqchip, move VIC irqchip to drivers/irqchip. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de>
* | ARM: samsung: remove unused tick.hRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | Remove tick.h on s5p64x0 and s5pv210 as they are unused. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org
* | ARM: remove unneeded vic.h includesRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Numerous includes of asm/hardware/vic.h aren't needed, so remove them. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Hubert Feurstein <hubert.feurstein@contec.at> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Acked-By: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: linux-samsung-soc@vger.kernel.org Cc: patches@opensource.wolfsonmicro.com Acked-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: remove mach .handle_irq for VIC usersRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the VIC initialization sets up the handle_arch_irq pointer, we can remove it for all machines and make it static. Move vic_handle_irq to avoid a forward declaration. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Hubert Feurstein <hubert.feurstein@contec.at> Cc: Alessandro Rubini <rubini@unipv.it> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: VIC: set handle_arch_irq in VIC initializationRob Herring2013-01-12
| | | | | | | | | | | | | | | | Set handle_arch_irq to vic_handle_irq. Only the first VIC initialized can setup the handler. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Olof Johansson <olof@lixom.net>
* | ARM: VIC: shrink down vic.hRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | Move all register defines except VIC_INT_ENABLE and VIC_INT_ENABLE_CLEAR which are used by Samsung. With multi irq handler, vic.h is not included in assembly any more, so we can remove the assembly ifdefs. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Olof Johansson <olof@lixom.net>
* | irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.hRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have GIC moved to drivers/irqchip and all GIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Samuel Ortiz <sameo@linux.intel.com>
* | ARM: use common irqchip_init for GIC initRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert all GIC DT initialization over to use common irqchip_init function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org>
* | irqchip: Move ARM GIC to drivers/irqchipRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | Now that we have drivers/irqchip, move GIC irqchip to drivers/irqchip. This is necessary to share the GIC with arm and arm64. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de>
* | ARM: remove mach .handle_irq for GIC usersRob Herring2013-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the GIC initialization sets up the handle_arch_irq pointer, we can remove it for all machines and make it static. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Stephen Warren <swarren@nvidia.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: GIC: set handle_arch_irq in GIC initializationRob Herring2013-01-10
| | | | | | | | | | | | | | | | Set handle_arch_irq to gic_handle_irq. Only the first GIC initialized can setup the handler. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Olof Johansson <olof@lixom.net>
* | ARM: GIC: remove direct use of gic_raise_softirqRob Herring2013-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation of moving gic code to drivers/irqchip, remove the direct platform dependencies on gic_raise_softirq. Move the setup of smp_cross_call into the gic code and use arch_send_wakeup_ipi_mask function to trigger wake-up IPIs. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Stephen Warren <swarren@nvidia.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Olof Johansson <olof@lixom.net>
* | ARM: GIC: remove assembly ifdefs from gic.hRob Herring2013-01-10
| | | | | | | | | | | | | | | | | | With multi irq handler and all GIC users converted to it, we don't need asm/hardware/gic.h to be included in assembly. Clean-up ifdefs and unnecessary includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Olof Johansson <olof@lixom.net>
* | ARM: mach-ux500: use SGI0 to wake up the other coreSrinidhi Kasagar2013-01-10
| | | | | | | | | | | | | | | | | | | | | | The commit 7d28e3eaa1a8e951251b942e7220f97114bd73b9 ("ARM: ux500: wake secondary cpu via resched") makes use of schedule IPI to wake up the secondary core which seems incorrect. Rather use SGI0. Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Olof Johansson <olof@lixom.net>
* | arm: add set_handle_irq() to register the parent IRQ controller handler functionThomas Petazzoni2013-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to allow irqchip drivers to register their IRQ handling function as the parent IRQ controller handler function, we provide a convenience function. This will avoid poking directly into the global handle_arch_irq variable. Suggested by Arnd Bergmann. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> [Rob Herring: remove warning. 1st one to initialize wins.] Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Olof Johansson <olof@lixom.net>
* | irqchip: add basic infrastructureThomas Petazzoni2013-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the recent creation of the drivers/irqchip/ directory, it is desirable to move irq controller drivers here. At the moment, the only driver here is irq-bcm2835, the driver for the irq controller found in the ARM BCM2835 SoC, present in Rasberry Pi systems. This irq controller driver was exporting its initialization function and its irq handling function through a header file in <linux/irqchip/bcm2835.h>. When proposing to also move another irq controller driver in drivers/irqchip, Rob Herring raised the very valid point that moving things to drivers/irqchip was good in order to remove more stuff from arch/arm, but if it means adding gazillions of headers files in include/linux/irqchip/, it would not be very nice. So, upon the suggestion of Rob Herring and Arnd Bergmann, this commit introduces a small infrastructure that defines a central irqchip_init() function in drivers/irqchip/irqchip.c, which is meant to be called as the ->init_irq() callback of ARM platforms. This function calls of_irq_init() with an array of match strings and init functions generated from a special linker section. Note that the irq controller driver initialization function is responsible for setting the global handle_arch_irq() variable, so that ARM platforms no longer have to define the ->handle_irq field in their DT_MACHINE structure. A global header, <linux/irqchip.h> is also added to expose the single irqchip_init() function to the reset of the kernel. A further commit moves the BCM2835 irq controller driver to this new small infrastructure, therefore removing the include/linux/irqchip/ directory. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> [rob.herring: reword commit message to reflect use of linker sections.] Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | irqchip: add to the directories part of the IRQ subsystem in MAINTAINERSThomas Petazzoni2013-01-10
| | | | | | | | | | | | | | | | | | | | Now that the drivers/irqchip/ directory is getting more code, it needs a maintainer. The obvious maintainer for it is Thomas Gleixner, who is maintaining the overall IRQ subsystem. So we add drivers/irqchip/ in the list of directories that are part of the IRQ subsystem. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-11 02:18:30 -0400