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path: root/arch/arm/mach-ux500/cpu.c
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2012-03-16ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device TreeLee Jones
This enables the embedded GIC on all u8500 based hardware using DT. Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-16Merge branch 'ux500/soc' into ux500/dtArnd Bergmann
2012-03-13ARM: ux500: convert to twd_local_timer_register() interfaceMarc Zyngier
Add support for the new smp_twd runtime registration interface to the ux500 platforms, and remove the old compile-time support. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-02-13ARM: ux500: export System-on-Chip information ux500 via sysfsLee Jones
Here we make use of the new System-On-Chip bus driver to export vital SoC information out to userspace via sysfs. This patch provides a data structure of strings to populate the base nodes found in: /sys/devices/soc[0|1|2|...]/[family|machine|revision|soc_id]. It also adds one more node as requested by ST-Ericsson. 'process' depicts the way in which the silicon was manufactured. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-03Merge branch 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6Linus Torvalds
* 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6: (80 commits) mfd: Fix missing abx500 header file updates mfd: Add missing <linux/io.h> include to intel_msic x86, mrst: add platform support for MSIC MFD driver mfd: Expose TurnOnStatus in ab8500 sysfs mfd: Remove support for early drop ab8500 chip mfd: Add support for ab8500 v3.3 mfd: Add ab8500 interrupt disable hook mfd: Convert db8500-prcmu panic() into pr_crit() mfd: Refactor db8500-prcmu request_clock() function mfd: Rename db8500-prcmu init function mfd: Fix db5500-prcmu defines mfd: db8500-prcmu voltage domain consumers additions mfd: db8500-prcmu reset code retrieval mfd: db8500-prcmu tweak for modem wakeup mfd: Add db8500-pcmu watchdog accessor functions for watchdog mfd: hwacc power state db8500-prcmu accessor mfd: Add db8500-prcmu accessors for PLL and SGA clock mfd: Move to the new db500 PRCMU API mfd: Create a common interface for dbx500 PRCMU drivers mfd: Initialize DB8500 PRCMU regs ... Fix up trivial conflicts in arch/arm/mach-imx/mach-mx31moboard.c arch/arm/mach-omap2/board-omap3beagle.c arch/arm/mach-u300/include/mach/irqs.h drivers/mfd/wm831x-spi.c
2011-10-31Merge branch 'stericsson/cleanup' into next/timerArnd Bergmann
The timer and cleanup branches from stericsson conflict, so I'm merging them here. Conflicts: arch/arm/mach-ux500/Makefile arch/arm/mach-ux500/cpu.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-10-24mfd: Move to the new db500 PRCMU APIMattias Nilsson
Now that we have a shared API between the DB8500 and DB5500 PRCMU's, switch to using this neutral API instead. We delete the parts of db8500-prcmu.h that is now PRCMU-neutral, and calls will be diverted to respective driver. Common registers are in dbx500-prcmu-regs.h and common accessors and defines in <linux/mfd/dbx500-prcmu.h> This way we get a a lot more abstraction and code reuse. Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-09-22ARM: ux500: Move timer code to separate fileJonas Aaberg
Just split off the timer code to its own file so we have a more fine-grained file tree. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-09-22ARM: ux500: add support for clocksource DBX500 PRCMUMattias Wallin
This patch adds support for the DBX500 PRCMU clocksource to ux500 platforms. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.co> Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-08-30mach-ux500: factor out l2x0 handling codeLinus Walleij
Following mach-imx we break out the l2x0 handling into its own file, avoiding some ifdefs. Also remove unnecessary creation of local pointers when there is already one file-local readily available. Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-08-30ARM: mach-ux500: add explicit cpu_relax() for busy wait loopBarry Song
using cpu_relax in busy loops is a well-known idiom in the kernel. It's more for documentation purposes than technically needed here. Cc: Jamie Iles <jamie@jamieiles.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mfd: add DB5500 PRCMU driverLinus Walleij
This adds the DB5500 PRCMU driver. Right now this one is pretty restricted in functionality, exposing a simple interface to send I2C messages. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: move the DB8500 PRCMU driver to MFDLinus Walleij
We have decided that this function arbiter fits better in the MFD subsystem. Since we need to concatenate the split header files we move it basically like this: mv mach-ux500/prcmu-db8500.c drivers/mfd/db8500-prcmu.c mv mach-ux500/include/mach/prcmu-defs.h include/linux/mfd/db8500-prcmu.h mv mach-ux500/include/mach/prcmu-regs.h drivers/mfd/db8500-prcmu-regs.h mach-ux500/include/mach/prcmu.h >> include/linux/mfd/db8500-prcmu.h rm arch/arm/mach-ux500/include/mach/prcmu.h Then we update different #include statements and Makefile orders etc to make the PRCMU driver compile, link and boot in the new place without really changing any code. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: make PRCMU base address dynamicLinus Walleij
This makes the PRCMU base address be selected at runtime for U8500 and U5500 instead of being compiled-in. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-01-10ux500: dynamic SOC detectionRabin Vincent
Dynamically detect the DBx500 SOC an revision based on the ASIC ID. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2011-01-10ux500: remove build-time changing macrosRabin Vincent
To allow the possiblity of building U8500 and U5500 support in the same image. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> [Rebased to latest changes in Russells tree] Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2011-01-06Merge branch 'devel-stable' into develRussell King
Conflicts: arch/arm/mach-pxa/clock.c arch/arm/mach-pxa/clock.h
2010-12-14ARM: GIC: provide a single initialization function for boot CPURussell King
Provide gic_init() which initializes the GIC distributor and current CPU's GIC interface for the boot (or single) CPU. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-08ux500: Call prmcu_init only for u8500Per Forlin
PRCMU driver only supports u8500. Don't initialize prcmu if running on u5500. Signed-off-by: Per Forlin <per.forlin@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2010-12-08ARM: ux500: prcmu db8500 v2 supportMattias Wallin
This patch adds support for db8500 chip version 2. The TCDM memory address of the PRCMU is changed and dynamic detection of that is added. Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
2010-12-08ux500: rework device registrationRabin Vincent
Change the Ux500 devices to be dynamically allocated and added by calling functions instead of referencing structures, thereby allowing 5500 and other derivatives' support to be added without having to duplicate structures, use fixup functions, or use compile-time macros. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2010-11-21ARM: 6473/1: Small update to ux500 specific L2 cache codePer Fransson
This change updates the ux500 specific outer cache code to use the new *_relaxed() I/O accessors. Signed-off-by: Per Fransson <per.xx.fransson@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-26ARM: ux500 specific L2 cache codePer Fransson
The generic version of l2x0_inv_all is only called just after disabling the L2 cache and is surrounded by a spinlock. However, we're not really turning off the L2 cache right now, and the PL310 does not support exclusive accesses (used to implement the spinlock). So, the invalidation needs to be done without the spinlock. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Hans-Juergen Koch <hjk@linutronix.de> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Per Fransson <per.xx.fransson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2010-05-27ARM: 6145/1: ux500 MTU clockrate correctionLinus Walleij
This adjusts the clockrate for the MTU timer. On the different UX500 variants this rate is different. The platform can also have been set up at hardware initialization, bootloader or early init for different clock speeds. To have the clock framework available early so the timers can use them, the clock initialization for Nomadik and ux500 is moved to IRQ init time. A custom per-clock callback is added to handle special cases like this. This solves a user-visible bug: without this patch the current UX500 platforms will not be synchronized to wall-clock time and the platform will drift in time. Acked-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-04ARM: 6087/1: ux500: move sys_timer to cpu.cRabin Vincent
Move the common system timer setup code to cpu.c. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-04ARM: 6082/1: ux500: put common devices into devices.cRabin Vincent
Introduce devices.c, for placing devices common among Ux500 SoCs. Start with the PL031 device. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-04ARM: 6080/1: ux500: move irq and common maps to cpu.cRabin Vincent
Move IRQ initialization and common io mapping setup code to cpu.c, renaming U8500* to UX500* along the way. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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