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* Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into nextLinus Torvalds2014-06-063-52/+3Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ...
| * ARM: l2c: exynos: convert to generic l2c OF initialisation (and thereby fix it)Russell King2014-05-301-6/+2Star
| | | | | | | | | | | | | | | | exynos was unconditionally calling the L2 cache initialisation from an early_initcall. This breaks multiplatform kernels. Thankfully, converting to generic l2c initialisation fixes this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: l2c: exynos: convert to common l2c310 early resume functionalityRussell King2014-05-303-41/+2Star
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: l2c: exynos: remove cache size overrideRussell King2014-05-301-4/+1Star
| | | | | | | | | | | | | | | | | | | | | | The cache size should already be present in the L2 cache auxiliary control register: it is part of the integration process to configure the hardware IP. Most platforms get this right, yet still many cargo-cult program, and assume that they always need specifying to the L2 cache code. Remove them so we can find out which really need this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: l2c: remove platforms/SoCs setting early BRESPRussell King2014-05-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | Since we now automatically enable early BRESP in core L2C-310 code when we detect a Cortex-A9, we don't need platforms/SoCs to set this bit explicitly. Instead, they should seek to preserve the value of bit 30 in the auxiliary control register. Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: l2c: fix register namingRussell King2014-05-301-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | We have a mixture of different devices with different register layouts, but we group all the bits together in an opaque mess. Split them out into those which are L2C-310 specific and ones which refer to earlier devices. Provide full auxiliary control register definitions. Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge tag 'devicetree-for-3.16' of ↵Linus Torvalds2014-06-041-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next Pull DeviceTree updates from Rob Herring: - Another round of clean-up of FDT related code in architecture code. This removes knowledge of internal FDT details from most architectures except powerpc. - Conversion of kernel's custom FDT parsing code to use libfdt. - DT based initialization for generic serial earlycon. The introduction of generic serial earlycon support went in through the tty tree. - Improve the platform device naming for DT probed devices to ensure unique naming and use parent names instead of a global index. - Fix a race condition in of_update_property. - Unify the various linker section OF match tables and fix several function prototype errors. - Update platform_get_irq_byname to work in deferred probe cases. - 2 binding doc updates * tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (58 commits) of: handle NULL node in next_child iterators of/irq: provide more wrappers for !CONFIG_OF devicetree: bindings: Document micrel vendor prefix dt: bindings: dwc2: fix required value for the phy-names property of_pci_irq: kill useless variable in of_irq_parse_pci() of/irq: do irq resolution in platform_get_irq_byname() of: Add a testcase for of_find_node_by_path() of: Make of_find_node_by_path() handle /aliases of: Create unlocked version of for_each_child_of_node() lib: add glibc style strchrnul() variant of: Handle memory@0 node on PPC32 only pci/of: Remove dead code of: fix race between search and remove in of_update_property() of: Use NULL for pointers of: Stop naming platform_device using dcr address of: Ensure unique names without sacrificing determinism tty/serial: pl011: add DT based earlycon support of/fdt: add FDT serial scanning for earlycon of/fdt: add FDT address translation support serial: earlycon: add DT support ...
| * | of/fdt: update of_get_flat_dt_prop in prep for libfdtRob Herring2014-04-301-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop call in preparation to convert FDT code to use libfdt. Make the return value const and the property length ptr type an int. Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Grant Likely <grant.likely@linaro.org> Tested-by: Stephen Chivers <schivers@csc.com>
* | Merge tag 'drivers-for-3.16' of ↵Linus Torvalds2014-06-037-290/+132Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next Pull ARM SoC driver changes from Olof Johansson: "SoC-near driver changes that we're merging through our tree. Mostly because they depend on other changes we have staged, but in some cases because the driver maintainers preferred that we did it this way. This contains a largeish cleanup series of the omap_l3_noc bus driver, cpuidle rework for Exynos, some reset driver conversions and a long branch of TI EDMA fixes and cleanups, with more to come next release. The TI EDMA cleanups is a shared branch with the dmaengine tree, with a handful of Davinci-specific fixes on top. After discussion at last year's KS (and some more on the mailing lists), we are here adding a drivers/soc directory. The purpose of this is to keep per-vendor shared code that's needed by different drivers but that doesn't fit into the MFD (nor drivers/platform) model. We expect to keep merging contents for this hierarchy through arm-soc so we can keep an eye on what the vendors keep adding here and not making it a free-for-all to shove in crazy stuff" * tag 'drivers-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits) cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM tty: serial: msm: Remove direct access to GSBI power: reset: keystone-reset: introduce keystone reset driver Documentation: dt: add bindings for keystone pll control controller Documentation: dt: add bindings for keystone reset driver soc: qcom: fix of_device_id table ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynos ARM: EXYNOS: Move the driver to drivers/cpuidle directory ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c ARM: EXYNOS: Pass the AFTR callback to the platform_data ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier ARM: EXYNOS: Move the AFTR state function into pm.c ARM: EXYNOS: Encapsulate the AFTR code into a function ARM: EXYNOS: Disable cpuidle for exynos5440 ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle ARM: EXYNOS: Remove ifdef for scu_enable in pm ARM: EXYNOS: Move scu_enable in the cpu_pm notifier ARM: EXYNOS: Use the cpu_pm notifier for pm ...
| * \ Merge tag 'samsung-drivers-2' of ↵Olof Johansson2014-05-319-131/+177
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers Merge "Samsung 2nd drivers for 3.16" from Kukjin Kim: This is including fix exynos cpufreq driver compilation with ARCH_MULTIPLATFORM. Even though this is a work around, this is required for support exynos multiplatform for a while and will be updated in near future. This is based on tags/samsung-exynos. * tag 'samsung-drivers-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (24 commits) cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM ARM: EXYNOS: Enable multi-platform build support ARM: EXYNOS: Consolidate Kconfig entries ARM: EXYNOS: Add support for EXYNOS5410 SoC ARM: EXYNOS: Support secondary CPU boot of Exynos3250 ARM: EXYNOS: Add Exynos3250 SoC ID ARM: EXYNOS: Add 5800 SoC support ARM: EXYNOS: initial board support for exynos5260 SoC clk: exynos5250: Add missing sysmmu clocks for DISP and ISP blocks cpufreq: exynos: Fix the compile error ARM: S3C24XX: move debug-macro.S into the common space ARM: S3C24XX: use generic DEBUG_UART_PHY/_VIRT in debug macro ARM: S3C24XX: trim down debug uart handling ARM: compressed/head.S: remove s3c24xx special case ARM: EXYNOS: Remove unnecessary inclusion of cpu.h ARM: EXYNOS: Migrate Exynos specific macros from plat to mach ARM: EXYNOS: Remove exynos_subsys registration ARM: EXYNOS: Remove duplicate lines in Makefile ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disabling ARM: dts: Remove g2d_pd node for exynos5420 ... Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynosDaniel Lezcano2014-05-253-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A look at the code reveals use of S5P_VA_SYSRAM macro, in case of certain SoC revisions, which is not valid any longer, after SYSRAM started to be mapped dynamically. The new dynamic mapping is stored in sysram_base_addr variable, which is declared static in platsmp.c This fix makes sysram_base_addr non-static, declared it in common.h and used in pm.c instead of S5P_VA_SYSRAM. Suggested-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move the driver to drivers/cpuidle directoryDaniel Lezcano2014-05-252-100/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.cDaniel Lezcano2014-05-251-10/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Pass the AFTR callback to the platform_dataDaniel Lezcano2014-05-252-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No more dependency on the arch code. The platform_data field is used to set the PM callback as the other cpuidle drivers. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.cDaniel Lezcano2014-05-252-3/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This macro is only used there. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move the power sequence call in the cpu_pm notifierDaniel Lezcano2014-05-252-27/+22Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code to initiate and exit the powerdown sequence is the same in pm.c and cpuidle.c. Let's split the common part in the pm.c and reuse it from the cpu_pm notifier. That is one more step forward to make the cpuidle driver arch indenpendant. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move the AFTR state function into pm.cDaniel Lezcano2014-05-253-29/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to remove depedency on pm code, let's move the 'exynos_enter_aftr' function into the pm.c file as well as the other helper functions. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Encapsulate the AFTR code into a functionDaniel Lezcano2014-05-251-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's encapsulate the AFTR state specific call into a single function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Disable cpuidle for exynos5440Daniel Lezcano2014-05-252-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no point to register the cpuidle driver for the 5440 as it has only one WFI state which is the default idle function when the cpuidle driver is disabled. By disabling cpuidle we prevent to enter to the governor computation for nothing, thus saving a lot of processing time. The only drawback is the statistic via sysfs on this state which is lost but it is meaningless and it could be retrieved from the ftrace easily. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidleDaniel Lezcano2014-05-251-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidleDaniel Lezcano2014-05-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass the wakeup mask to 'exynos_set_wakeupmask' as this function could be used for different idle states with different mask. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Remove ifdef for scu_enable in pmDaniel Lezcano2014-05-251-3/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scu_enable function is already a noop in the scu's header file is CONFIG_SMP=n, so no need to use these macros in the code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move scu_enable in the cpu_pm notifierDaniel Lezcano2014-05-252-7/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We make the cpuidle code less arch dependent. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Use the cpu_pm notifier for pmDaniel Lezcano2014-05-252-24/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the cpu_pm_enter/exit notifier to group some pm code inside the pm file. The save and restore code is duplicated across pm.c and cpuidle.c. By using the cpu_pm notifier, we can factor out the routine. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Fix S5P_WAKEUP_STAT call for cpuidleDaniel Lezcano2014-05-251-3/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function should be called only when the powerdown sequence fails. Even if the current code does not hurt, by moving this line, we have the same code than the one in pm.c. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move some code inside the idle_finisher for cpuidleDaniel Lezcano2014-05-251-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the code around to differentiate different section of code and prepare it to be factored out in the next patches. The call order changed but hat doesn't have a side effect because they are independent. The important call is cpu_do_idle() which must be done the last. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Encapsulate register access inside a function for pmDaniel Lezcano2014-05-251-24/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That makes the code cleaner and encapsulted. The function will be reused in the next patch. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Change function name prefix for cpuidleDaniel Lezcano2014-05-251-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver was initially written for exynos4 but the driver is used also for exynos5. Change the function prefix name exynos4 -> exynos Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Use cpuidle_registerDaniel Lezcano2014-05-251-16/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the cpuidle generic function 'cpuidle_register'. That saves us from some extra lines of code and unneeded variables. A side effect of this change is a bug fix where before the cpuidle driver was registered for each_online_cpu and now it is for each_possible_cpu. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Prevent forward declaration for cpuidleDaniel Lezcano2014-05-251-22/+18Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the structure below the 'exynos4_enter_lowpower' function so no more need of forward declaration. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | ARM: EXYNOS: Move arm core power down clock to exynos5250 common clockAmit Daniel Kachhap2014-05-251-54/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now with common clock support added for exynos5250 it is necessary to move this code to exynos5250 common clock driver as clock registers should be handled there. This change is tested in exynos5250 based arndale platform. Cc: Abhilash Kesavan <a.kesavan@samsung.com> Cc: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsugn.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> [t.figa: Rebased onto current kernel sources.] Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | ARM: exynos: don't run exynos4 l2x0 setup on other platformsOlof Johansson2014-05-311-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was caught by a panic on Broadcom mobile platforms. Note that this code is all going away with the pending l2x0 cleanup series from Russell, but we need this here until that's landed so we can enable exynos multiplatform. Signed-off-by: Olof Johansson <olof@lixom.net>
* | | | ARM: exynos: Fix "allmodconfig" build errors in mcpm and hotplugAbhilash Kesavan2014-05-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the following build errors: /tmp/ccRbZlaA.s: Assembler messages: /tmp/ccRbZlaA.s:69: Error: selected processor does not support ARM mode `isb ' /tmp/ccRbZlaA.s:75: Error: selected processor does not support ARM mode `isb ' /tmp/ccRbZlaA.s:76: Error: selected processor does not support ARM mode `dsb ' make[1]: *** [arch/arm/mach-exynos/hotplug.o] Error 1 /tmp/ccJEg4jw.s: Assembler messages: /tmp/ccJEg4jw.s:454: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:455: Error: selected processor does not support ARM mode `dsb' /tmp/ccJEg4jw.s:465: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:474: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:475: Error: selected processor does not support ARM mode `dsb' /tmp/ccJEg4jw.s:516: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:525: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:526: Error: selected processor does not support ARM mode `dsb' make[1]: *** [arch/arm/mach-exynos/mcpm-exynos.o] Error 1 Reported-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Tested-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* | | | Merge tag 'exynos-mcpm-2' of ↵Olof Johansson2014-05-311-3/+9
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc Merge "Exynos 2nd MCPM updates for v3.16" from Kukjin Kim: - enable mcpm for dual-cluster exynos5800 - since commit 166aaf39 ("ARM: 8029/1: mcpm: Rename the power_down_finish() functions to be less confusing"), use new member name wait_for_cpu_powerdown. This is based on tags/exynos-mcpm. Note that since the commit 166aaf39 is in rmk tree so this should be sent to upstream after that in 3.16 merge window. * tag 'exynos-mcpm-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: mcpm rename the power_down_finish ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoC Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | | ARM: EXYNOS: mcpm rename the power_down_finishKukjin Kim2014-05-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 166aaf39 ("ARM: 8029/1: mcpm: Rename the power_down_finish() functions to be less confusing") changed the name of power_down_finish to wait_for_cpu_powerdown, so use new member name wait_for_cpu_powerdown. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | | ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoCAbhilash Kesavan2014-05-301-1/+7
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The exynos5800 is very similar to exynos5420. We can re-use the existing MCPM support for exynos5800 for secondary boot -up and switching. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | Merge tag 'samsung-exynos' of ↵Olof Johansson2014-05-3110-132/+177
|\ \ \ \ | |/ / / |/| / / | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc Samsung Exynos updates for 3.16 - add new SoCs support : exynos3250, 5260, 5410 and 5800 - enable multi-platform on exynos : consolidate exynos related Kconfig entries * tag 'samsung-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (22 commits) ARM: EXYNOS: Enable multi-platform build support ARM: EXYNOS: Consolidate Kconfig entries ARM: EXYNOS: Add support for EXYNOS5410 SoC ARM: EXYNOS: Support secondary CPU boot of Exynos3250 ARM: EXYNOS: Add Exynos3250 SoC ID ARM: EXYNOS: Add 5800 SoC support ARM: EXYNOS: initial board support for exynos5260 SoC cpufreq: exynos: Fix the compile error ARM: S3C24XX: move debug-macro.S into the common space ARM: S3C24XX: use generic DEBUG_UART_PHY/_VIRT in debug macro ARM: S3C24XX: trim down debug uart handling ARM: compressed/head.S: remove s3c24xx special case ARM: EXYNOS: Remove unnecessary inclusion of cpu.h ARM: EXYNOS: Migrate Exynos specific macros from plat to mach ARM: EXYNOS: Remove exynos_subsys registration ARM: EXYNOS: Remove duplicate lines in Makefile ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disabling ARM: dts: Remove g2d_pd node for exynos5420 ARM: dts: Remove mau_pd node for exynos5420 ARM: exynos_defconfig: enable HS-I2C to fix for mmc partition mount ... Signed-off-by: Olof Johansson <olof@lixom.net>
| * | ARM: EXYNOS: Enable multi-platform build supportArnd Bergmann2014-05-302-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | This makes it possible to enable the Exynos platform as part of a multiplatform kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Consolidate Kconfig entriesSachin Kamat2014-05-301-54/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of repeating the Kconfig entries for every SoC, move them under ARCH_EXYNOS3, 4 and 5 and move the entries common to 3, 4 and 5 under ARCH_EXYNOS. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Add support for EXYNOS5410 SoCTarek Dakhran2014-05-302-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EXYNOS5410 is SoC in Samsung's Exynos5 SoC series. Add initial support for this SoC. Signed-off-by: Tarek Dakhran <t.dakhran@samsung.com> Signed-off-by: Vyacheslav Tyrtov <v.tyrtov@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Support secondary CPU boot of Exynos3250Chanwoo Choi2014-05-301-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix the offset of CPU boot address and don't need to send smc call of SMC_CMD_CPU1BOOT command for secondary CPU boot because Exynos3250 removes WFE in secure mode. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Add Exynos3250 SoC IDChanwoo Choi2014-05-303-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add Exynos3250's SoC ID. Exynos 3250 is SoC that is based on the 32-bit RISC processor for Smartphone. Exynos3250 uses Cortex-A7 dual cores and has a target speed of 1.0GHz. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Add 5800 SoC supportArun Kumar K2014-05-303-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | Exynos5800 is an octa core SoC which is based on the 5420 platform. This patch adds the basic support for it in the mach-exynos. Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: initial board support for exynos5260 SoCPankaj Dubey2014-05-302-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add basic arch side support for exynos5260 SoC. Note that this is required to enable build for clock driver. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Remove unnecessary inclusion of cpu.hSachin Kamat2014-05-257-12/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | Exynos specific macros and declarations have been moved to mach-exynos. Inclusion of plat/cpu.h is no more necessary. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Migrate Exynos specific macros from plat to machSachin Kamat2014-05-251-0/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | Move Exynos specific macros to mach-exynos from plat-samsung to avoid unnecessary dependency on plat based header files. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Remove exynos_subsys registrationSachin Kamat2014-05-251-11/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | 'exynos_subsys' has no users. Remove this code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: Remove duplicate lines in MakefileSachin Kamat2014-05-251-6/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | Group all files compiled under common config option together. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disablingLeela Krishna Amudala2014-05-251-62/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A common macro v7_exit_coherency_flush available which does the below tasks in the seqeunce. -clearing C bit -clearing L1 cache -exit SMP -instruction and data synchronization So removing the local functions which does the same thing and use the macro instead. Signed-off-by: Leela Krishna Amudala <leela.krishna@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> [cw00.choi@samsung.com: tested on exynos3250 based board] Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | ARM: EXYNOS: fix the secondary CPU boot of exynos4212Kyungmin Park2014-05-141-1/+14
| |/ | | | | | | | | | | | | | | | | | | | | This patch fixes the offset of CPU boot address and changes the parameter of smc call for SMC_CMD_CPU1BOOT command on exynos4212. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-23 13:23:34 +0200