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2018-05-13ARM: exynos: Remove static mapping of SCU SFRPankaj Dubey1-3/+1
Lets remove static mapping of SCU SFR mainly used in CORTEX-A9 SoC based boards. Instead use mapping from device tree node of SCU. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> [mszyprow: rebased, added fallback to scu_a9_get_base() when no SCU DT node is available, removed compatibility break warning, fixed non-SMP build, keep SCU base mapping to avoid issues with calls from CPUidle] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-03-21ARM: EXYNOS: Simplify code in coupled CPU idle hot pathMarek Szyprowski1-1/+1
exynos_enter_aftr() is called by coupled CPU idle code every time CPU enters idle state, what can be considered as a hot path. Replace of_machine_is_compatible() call with a simple SoC revision check. of_machine_is_compatible() function performs a dozen of string comparisons during the full device tree walk, while soc_is_exynos4412() is a simple integer check on SoC revision variable. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-03-21ARM: EXYNOS: Fix coupled CPU idle freeze on Exynos4210Marek Szyprowski1-5/+1
Since commit 04c8b0f82c7d ("irqchip/gic: Make locking a BL_SWITCHER only feature") coupled CPU idle freezes from time to time on Exynos4210. Later commit 313c8c16ee62 ("PM / CPU: replace raw_notifier with atomic_notifier") changed the context in which the CPU idle code is executed, what results in fully reproducible freeze all the time. However, almost the same coupled CPU idle code works fine on Exynos3250 regardless of the changes made in the mentioned commits. It turned out that the IPI call used on Exynos4210 is conflicting with the change done in the first mentioned commit in GIC. Fix this by using the same code path as for Exynos3250, instead of the IPI call for synchronization with second CPU core, call dsb_sev() directly. Tested on Exynos4210-based Trats and Origen boards. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> CC: <stable@vger.kernel.org> # v4.13+ Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-01-03ARM: EXYNOS: Add SPDX license identifiersKrzysztof Kozlowski1-14/+10
Replace GPL license statements with SPDX license identifiers (GPL-2.0 and GPL-2.0+). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-10-08ARM: EXYNOS: Remove Exynos4212 related dead codeMarek Szyprowski1-2/+1
Support for Exynos4212 SoCs has been removed by commit bca9085e0ae9 ("ARM: dts: exynos: remove Exynos4212 support (dead code)"), so there is no need to keep remaining dead code related to this SoC version. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-02-28ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbolFlorian Fainelli1-3/+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>
2016-06-21ARM: EXYNOS: Fixup endian in pm/pmuBen Dooks1-3/+3
Fix the PMU code endian access code to deal with kernels built for big endian operation. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-02-25ARM: EXYNOS: Cleanup header files inclusionPankaj Dubey1-3/+1
This includes trivial cleanup in exynos files such as - remove unused header files inclusion from exynos.c, s5p-dev-mfc.c, firmware.c, pm.c. - move inclusion of of.h from common.h to pm.c where it is really required Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-02-25ARM: EXYNOS: Move pmu specific headers under "linux/soc/samsung"Pankaj Dubey1-2/+2
Moving Exynos PMU specific header file into "include/linux/soc/samsung" thus updated affected files under "mach-exynos" to use new location of these header files. Signed-off-by: Amit Daniel Kachhap <amitdanielk@gmail.com> [tested on Peach-Pi (Exynos5880)] Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> [for testing on Trats2 (Exynos4412) and Odroid XU3 (Exynos5422)] Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-06-05ARM: EXYNOS: add coupled cpuidle support for Exynos3250Bartlomiej Zolnierkiewicz1-8/+43
The following patch adds coupled cpuidle support for Exynos3250 to an existing cpuidle-exynos driver. As a result it enables AFTR mode to be used by default on Exynos3250 without the need to hot unplug CPU1 first. The detailed changelog: - use exynos_[get,set]_boot_addr() in cpuidle-exynos.c and then make cpu_boot_reg_base() static - use exynos_core_restart() in exynos_cpu0_enter_aftr() - add missing smp_rmb() to exynos_cpu0_enter_aftr() (to make the code in-sync with the platform SMP code) - add call_firmware_op(cpu_boot, 1) to exynos_cpu0_enter_aftr() - use dsb_sev() instead of IPI wakeup for Exynos3250 in exynos_cpu0_enter_aftr() - add CPU0 vs CPU1 synchronization based on S5P_PMU_SPARE2 register for Exynos3250 to cpuidle-exynos.c - add flush_cache_all() for CPU1/0 before powerdown/AFTR for Exynos3250 to exynos_wfi_finisher()/exynos_do_idle() Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-04-22Merge tag 'armsoc-soc' of ↵Linus Torvalds1-1/+11
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "Our SoC branch usually contains expanded support for new SoCs and other core platform code. In this case, that includes: - support for the new Annapurna Labs "Alpine" platform - a rework greatly simplifying adding new platform support to the MCPM subsystem (Multi-cluster power management) - cpuidle and PM improvements for Exynos3250 - misc updates for Renesas, OMAP, Meson, i.MX. Some of these could have gone in other branches but ended up here for various reasons" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits) ARM: alpine: add support for generic pci ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction ARM: vexpress: migrate DCSCB to the new MCPM backend abstraction ARM: vexpress: DCSCB: tighten CPU validity assertion ARM: vexpress: migrate TC2 to the new MCPM backend abstraction ARM: MCPM: move the algorithmic complexity to the core code ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC ARM: EXYNOS: add AFTR mode support for Exynos3250 ARM: EXYNOS: add code for setting/clearing boot flag ARM: EXYNOS: fix CPU1 hotplug on Exynos3250 ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore ARM: cygnus: fix const declaration bcm_cygnus_dt_compat ARM: DRA7: hwmod: Fix the hwmod class for GPTimer4 ARM: DRA7: hwmod: Add data for GPTimers 13 through 16 ARM: EXYNOS: Remove left over 'extra_save' ARM: EXYNOS: Constify exynos_pm_data array ARM: EXYNOS: use static in suspend.c ARM: EXYNOS: Use platform device name as power domain name ARM: EXYNOS: add support for async-bridge clocks for pm_domains ARM: omap-device: add missed callback for suspend-to-disk ...
2015-03-26ARM: EXYNOS: add AFTR mode support for Exynos3250Bartlomiej Zolnierkiewicz1-1/+11
AFTR mode support brings reduced energy consumption and is a prerequisite for more advanced W-AFTR/LPA power saving modes. AFTR mode has been already supported on other Exynos SoCs for few years and this patch adds its support for Exynos3250 SoC. The differences in Exynos3250 SoC AFTR mode support when compared to Exynos4x12 SoCs are: - different secure firmware calls are used - different S5P_WAKEUP_MASK wakeup mask is used - S5P_WAKEUP_MASK2 wakeup mask needs to be set in addition to the standard S5P_WAKEUP_MASK one - C2_STATE BOOT mode flag needs to be set/cleared pre/post AFTR Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-17ARM: EXYNOS: Fix build breakage cpuidle on !SMPBartlomiej Zolnierkiewicz1-0/+2
The Exynos cpuidle driver has coupled cpuidle built-in so it cannot be built without SMP: arch/arm/mach-exynos/pm.c: In function 'exynos_cpu0_enter_aftr': arch/arm/mach-exynos/pm.c:246:4: error: implicit declaration of function 'arch_send_wakeup_ipi_mask' [-Werror=implicit-function-declaration] arch/arm/mach-exynos/built-in.o: In function 'exynos_pre_enter_aftr': ../arch/arm/mach-exynos/pm.c:300: undefined reference to 'cpu_boot_reg_base' arch/arm/mach-exynos/built-in.o: In function 'exynos_cpu1_powerdown': ../arch/arm/mach-exynos/pm.c:282: undefined reference to 'exynos_cpu_power_down' Fix it by adding missing checks for SMP. Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-02-17Merge tag 'drivers-for-linus' of ↵Linus Torvalds1-4/+129
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "These are changes for drivers that are intimately tied to some SoC and for some reason could not get merged through the respective subsystem maintainer tree. This time around, much of this is for at91, with the bulk of it being syscon and udc drivers. Also, there's: - coupled cpuidle support for Samsung Exynos4210 - Renesas 73A0 common-clk work - of/platform changes to tear down DMA mappings on device destruction - a few updates to the TI Keystone knav code" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits) cpuidle: exynos: add coupled cpuidle support for exynos4210 ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary soc: ti: knav_qmss_queue: change knav_range_setup_acc_irq to static soc: ti: knav_qmss_queue: makefile tweak to build as dynamic module pcmcia: at91_cf: depend on !ARCH_MULTIPLATFORM soc: ti: knav_qmss_queue: export API calls for use by user driver of/platform: teardown DMA mappings on device destruction usb: gadget: at91_udc: Allocate udc instance usb: gadget: at91_udc: Update DT binding documentation usb: gadget: at91_udc: Rework for multi-platform kernel support usb: gadget: at91_udc: Simplify probe and remove functions usb: gadget: at91_udc: Remove non-DT handling code usb: gadget: at91_udc: Document DT clocks and clock-names property usb: gadget: at91_udc: Drop uclk clock usb: gadget: at91_udc: Fix clock names mfd: syscon: Add Atmel SMC binding doc mfd: syscon: Add atmel-smc registers definition mfd: syscon: Add Atmel Matrix bus DT binding documentation mfd: syscon: Add atmel-matrix registers definition clk: shmobile: fix sparse NULL pointer warning ...
2015-01-30cpuidle: exynos: add coupled cpuidle support for exynos4210Bartlomiej Zolnierkiewicz1-0/+122
The following patch adds coupled cpuidle support for Exynos4210 to an existing cpuidle-exynos driver. As a result it enables AFTR mode to be used by default on Exynos4210 without the need to hot unplug CPU1 first. The patch is heavily based on earlier cpuidle-exynos4210 driver from Daniel Lezcano: http://www.spinics.net/lists/linux-samsung-soc/msg28134.html Changes from Daniel's code include: - porting code to current kernels - fixing it to work on my setup (by using S5P_INFORM register instead of S5P_VA_SYSRAM one on Revison 1.1 and retrying poking CPU1 out of the BOOT ROM if necessary) - fixing rare lockup caused by waiting for CPU1 to get stuck in the BOOT ROM (CPU hotplug code in arch/arm/mach-exynos/platsmp.c doesn't require this and works fine) - moving Exynos specific code to arch/arm/mach-exynos/pm.c - using cpu_boot_reg_base() helper instead of BOOT_VECTOR macro - using exynos_cpu_*() helpers instead of accessing registers directly - using arch_send_wakeup_ipi_mask() instead of dsb_sev() (this matches CPU hotplug code in arch/arm/mach-exynos/platsmp.c) - integrating separate exynos4210-cpuidle driver into existing exynos-cpuidle one Cc: Colin Cross <ccross@google.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-30ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessaryBartlomiej Zolnierkiewicz1-4/+7
Commit c2dd114d2486 ("ARM: EXYNOS: fix register setup for AFTR mode code") added S5P_CENTRAL_SEQ_OPTION register setup fix for all Exynos SoCs to AFTR mode code-path. It turned out that for coupled cpuidle AFTR mode on Exynos4210 (added by the next patch) applying this fix causes lockup so enable it in the AFTR mode code-path only on SoCs that require it (in the suspend code-path it can be always applied like it was before commit c2dd114d2486 ("ARM: EXYNOS: fix register setup for AFTR mode code") Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Colin Cross <ccross@google.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-08ARM: EXYNOS: Remove i2c sys configuration related codePankaj Dubey1-1/+2
As all these code has been moved into i2c driver, now we can safely remove them from machine files. CC: Russell King <linux@arm.linux.org.uk> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2014-11-21ARM: EXYNOS: Move PMU specific definitions from common.hPankaj Dubey1-0/+1
This patch moves PMU specific definitions into a new file as exynos-pmu.h. This will help in reducing dependency of common.h in pmu.c. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: Fix build with PM_SLEEP=n and ARM_EXYNOS_CPUIDLE=yBartlomiej Zolnierkiewicz1-333/+5
Fix building of exynos_defconfig with CONFIG_PM_SLEEP disabled and CONFIG_ARM_EXYNOS_CPUIDLE enabled by: * adding EXYNOS_CPU_SUSPEND config option * always building sleep.o * building pm.o if EXYNOS_CPU_SUSPEND is enabled * moving suspend specific code from pm.c to suspend.c * enabling pm-common.o build also for EXYNOS_CPU_SUSPEND option [ Please note that there are no changes in the code moved from pm.c to suspend.c except making few functions non-static and cleaning up includes. ] Also while at it update Copyright dates. The build error messages: drivers/built-in.o: In function `exynos_enter_core0_aftr': /home/bzolnier/linux/drivers/cpuidle/cpuidle-exynos.c:36: undefined reference to `cpu_suspend' arch/arm/mach-exynos/built-in.o:(.data+0x74): undefined reference to `exynos_enter_aftr' make: *** [vmlinux] Error 1 This patch has been tested on Exynos4210 based Origen board. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: fix register setup for AFTR mode codeBartlomiej Zolnierkiewicz1-7/+4
Add S5P_CENTRAL_SEQ_OPTION register setup to cpuidle AFTR mode code by moving the relevant code from exynos_pm_suspend() (used only by suspend) to exynos_pm_central_suspend() (used by both suspend and AFTR). Without this setup AFTR mode doesn't show any benefit over WFI one (at least on Exynos4412 SoC). When this setup is applied AFTR mode reduces power consumption by ~12% (as measured on Trats2 board). This change is a preparation for adding secure firmware support to EXYNOS cpuidle driver. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: add secure firmware support to AFTR mode codeBartlomiej Zolnierkiewicz1-5/+12
* Move cp15 registers saving to exynos_save_cp15() helper and add additional helper usage to do_idle firmware method. * Use resume firmware method instead of exynos_cpu_restore_register() and skip exynos_cpu_save_register() on boards with secure firmware enabled. * Use sysram_ns_base_addr + 0x24/0x20 addresses instead of the default ones used by exynos_cpu_set_boot_vector() on boards with secure firmware enabled. * Use do_idle firmware method instead of cpu_do_idle() on boards with secure firmware enabled. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: replace EXYNOS_BOOT_VECTOR_* macros by static inlinesBartlomiej Zolnierkiewicz1-12/+20
Replace EXYNOS_BOOT_VECTOR_ADDR and EXYNOS_BOOT_VECTOR_FLAG macros by exynos_boot_vector_addr() and exynos_boot_vector_flag() static inlines. This patch shouldn't cause any functionality changes. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: Add support for firmware-assisted suspend/resumeTomasz Figa1-5/+11
On a numer of Exynos-based boards Linux kernel is running in non-secure mode under a secure firmware. This means that certain operations need to be handled in special way, with firmware assistance. System-wide suspend/resume is an example of such operations. This patch adds support for firmware-assisted suspend/resume by leveraging recently introduced suspend and resume firmware operations and modifying existing suspend/resume paths to account for presence of secure firmware. Signed-off-by: Tomasz Figa <t.figa@samsung.com> [kgene.kim@samsung.com: rebased] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: Refactor the pm code to use DT based lookupVikas Sajjan1-42/+125
Refactoring the pm.c to avoid using "soc_is_exynos" checks, instead use the DT based lookup. While at it, consolidate the common code across SoCs and create static helper functions. Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-20ARM: EXYNOS: Move Disabling of JPEG USE_RETENTION for exynos5250 to pmu.cVikas Sajjan1-6/+1
Move the Disabling of JPEG USE_RETENTION for exynos5250 to pmu.c to make way for refactoring of pm.c and to create common functions across exynos4 and exynos5250. Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-08-09ARM: EXYNOS: Fix suspend/resume sequencesTomasz Figa1-87/+76
Due to recent consolidation of Exynos suspend and cpuidle code, some parts of suspend and resume sequences are executed two times, once from exynos_pm_syscore_ops and then from exynos_cpu_pm_notifier() and thus it breaks suspend, at least on Exynos4-based boards. In addition, simple core power down from a cpuidle driver could, in case of CPU 0 could result in calling functions that are specific to suspend and deeper idle states. This patch fixes the issue by moving those operations outside the CPU PM notifier into suspend and AFTR code paths. This leads to a bit of code duplication, but allows additional code simplification, so in the end more code is removed than added. Fixes: 85f9f90808b4 ("ARM: EXYNOS: Use the cpu_pm notifier for pm") Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Cc: arm@kernel.org Signed-off-by: Tomasz Figa <t.figa@samsung.com> [b.zolnierkie: ported patch over current changes] [b.zolnierkie: fixed exynos_aftr_finisher() return value] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-08Merge tag 'soc-for-3.17' of ↵Linus Torvalds1-29/+32
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "This is the bulk of new SoC enablement and other platform changes for 3.17: - Samsung S5PV210 has been converted to DT and multiplatform - Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms - Kirkwood, one of the popular Marvell platforms, is folded into the mvebu platform code, removing mach-kirkwood - Hwmod data for TI AM43xx and DRA7 platforms - More additions of Renesas shmobile platform support - Removal of plat-samsung contents that can be removed with S5PV210 being multiplatform/DT-enabled and the other two old platforms being removed New platforms (most with only basic support right now): - Hisilicon X5HD2 settop box chipset is introduced - Mediatek MT6589 (mobile chipset) is introduced - Broadcom BCM7xxx settop box chipset is introduced + as usual a lot other pieces all over the platform code" * tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits) ARM: hisi: remove smp from machine descriptor power: reset: move hisilicon reboot code ARM: dts: Add hix5hd2-dkb dts file. ARM: debug: Rename Hi3716 to HIX5HD2 ARM: hisi: enable hix5hd2 SoC ARM: hisi: add ARCH_HISI MAINTAINERS: add entry for Broadcom ARM STB architecture ARM: brcmstb: select GISB arbiter and interrupt drivers ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs ARM: configs: enable SMP in bcm_defconfig ARM: add SMP support for Broadcom mobile SoCs Documentation: arm: misc updates to Marvell EBU SoC status Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC ARM: mvebu: fix build without platforms selected ARM: mvebu: add cpuidle support for Armada 38x ARM: mvebu: add cpuidle support for Armada 370 cpuidle: mvebu: add Armada 38x support cpuidle: mvebu: add Armada 370 support cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7 ARM: mvebu: export the SCU address ...
2014-08-08Merge tag 'cleanup-for-3.17' of ↵Linus Torvalds1-66/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "This merge window brings a good size of cleanups on various platforms. Among the bigger ones: - Removal of Samsung s5pc100 and s5p64xx platforms. Both of these have lacked active support for quite a while, and after asking around nobody showed interest in keeping them around. If needed, they could be resurrected in the future but it's more likely that we would prefer reintroduction of them as DT and multiplatform-enabled platforms instead. - OMAP4 controller code register define diet. They defined a lot of registers that were never actually used, etc. - Move of some of the Tegra platform code (PMC, APBIO, fuse, powergate) to drivers/soc so it can be shared with 64-bit code. This also converts them over to traditional driver models where possible. - Removal of legacy gpio-samsung driver, since the last users have been removed (moved to pinctrl) Plus a bunch of smaller changes for various platforms that sort of dissapear in the diffstat for the above. clps711x cleanups, shmobile header file refactoring/moves for multiplatform friendliness, some misc cleanups, etc" * tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits) drivers: CCI: Correct use of ! and & video: clcd-versatile: Depend on ARM video: fix up versatile CLCD helper move MAINTAINERS: Add sdhci-st file to ARCH/STI architecture ARM: EXYNOS: Fix build breakge with PM_SLEEP=n MAINTAINERS: Remove Kirkwood ARM: tegra: Convert PMC to a driver soc/tegra: fuse: Set up in early initcall ARM: tegra: Always lock the CPU reset vector ARM: tegra: Setup CPU hotplug in a pure initcall soc/tegra: Implement runtime check for Tegra SoCs soc/tegra: fuse: fix dummy functions soc/tegra: fuse: move APB DMA into Tegra20 fuse driver soc/tegra: Add efuse and apbmisc bindings soc/tegra: Add efuse driver for Tegra ARM: tegra: move fuse exports to soc/tegra/fuse.h ARM: tegra: export apb dma readl/writel ARM: tegra: Use a function to get the chip ID ARM: tegra: Sort includes alphabetically ARM: tegra: Move includes to include/soc/tegra ...
2014-08-08Merge branch 'next/fixes-non-critical' into next/cleanupOlof Johansson1-66/+0
Merging in the few fixes we had also received, no need to keep those in a separate branch. * next/fixes-non-critical: drivers: CCI: Correct use of ! and & MAINTAINERS: Add sdhci-st file to ARCH/STI architecture ARM: EXYNOS: Fix build breakge with PM_SLEEP=n ARM: omap2+: gpmc-nand: Use dynamic platform_device_alloc() omap16xx: Removes fixme no longer needed in ocpi_enable() ARM: dts: OMAP5: Add device nodes for ABB ARM: omap2+: usb-tusb6010.c: Cleaning up variable is set more than once Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-26Merge branch 'next/fixes-non-critical' into next/socArnd Bergmann1-66/+0
This resolves a nontrivial conflict against a bug fix in another branch. Conflicts: arch/arm/mach-exynos/pm.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-26Merge tag 's5pv210-dt' of ↵Arnd Bergmann1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc Merge "Samsung S5PV210 DT support for v3.17" from Kukjin Kim: - support common clock framework for s5pv210 clock - add generic PHY driver on s5pv210 to support it via DT - add dt support for s5pv210-goni, smdkc110, smdkv210 and torbreck boards - remove board files from mach-s5pv210 and unused codes - enable multiplatform for s5pv210 * tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: clk: samsung: s5pv210: Remove legacy board support ARM: SAMSUNG: Remove remaining legacy code gpio: samsung: Remove legacy support of S5PV210 ARM: S5PV210: Enable multi-platform build support cpufreq: s5pv210: Make the driver multiplatform aware ARM: S5PV210: Register cpufreq platform device ARM: S5PV210: move debug-macro.S into the common space ARM: S5PV210: Untie PM support from legacy code ARM: S5PV210: Remove support for board files ARM: dts: Add Device tree for s5pc110/s5pv210 boards ARM: dts: Add Device tree for s5pv210 SoC ARM: S5PV210: Add board file for boot using Device Tree phy: Add support for S5PV210 to the Exynos USB 2.0 PHY driver clk: samsung: Add S5PV210 Audio Subsystem clock driver ARM: SAMSUNG: Remove legacy clock code serial: samsung: Remove support for legacy clock code cpufreq: s3c24xx: Remove some dead code ARM: S5PV210: Migrate clock handling to Common Clock Framework clk: samsung: Add clock driver for S5PV210 and compatible SoCs Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-23ARM: EXYNOS: Refactored code for using PMU address via DTPankaj Dubey1-36/+40
Under "arm/mach-exynos" many files are using PMU register offsets. Since we have added support for accessing PMU base address via DT, now we can remove PMU mapping from exynosX_iodesc. Let's convert all these access using iomapped address. This will help us in removing static mapping of PMU base address as well as help in reducing dependency over machine header files. Thus helping for migration of PMU implementation from machine to driver folder which can be reused for ARM64 based SoC. Also as we have removed static mappings from "regs-pmu.h" it does not need map.h anymore. But "platsmp.c" needed this and till now it got included indirectly. So lets move header inclusion of "mach/map.h" from "regs-pmu.h" to "platsmp.c". Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-20ARM: EXYNOS: Fix build breakge with PM_SLEEP=nKrzysztof Kozlowski1-66/+0
Fix building of exynos_defconfig with disabled PM_SLEEP: CONFIG_PM_SLEEP=n CONFIG_PM_SLEEP_SMP=n CONFIG_SUSPEND=n by moving functions for power up/down of CPU and cluster to platsmp.c The build error messages: arch/arm/mach-exynos/built-in.o: In function `exynos_boot_secondary': arch/arm/mach-exynos/platsmp.c:111: undefined reference to `exynos_cpu_power_state' arch/arm/mach-exynos/platsmp.c:112: undefined reference to `exynos_cpu_power_up' arch/arm/mach-exynos/platsmp.c:116: undefined reference to `exynos_cpu_power_state' make: *** [vmlinux] Error 1 Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com>, Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-18ARM: SAMSUNG: Remove legacy clock codeTomasz Figa1-1/+0
Since S5PV210 now has a complete clock driver using Common Clock Framework, there is no reason to keep the old code. Remove it together with the whole legacy Samsung-specific clock framework which no longer has any users. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-18ARM: make it easier to check the CPU part number correctlyRussell King1-6/+5
Ensure that platform maintainers check the CPU part number in the right manner: the CPU part number is meaningless without also checking the CPU implement(e|o)r (choose your preferred spelling!) Provide an interface which returns both the implementer and part number together, and update the definitions to include the implementer. Mark the old function as being deprecated... indeed, using the old function with the definitions will now always evaluate as false, so people must update their un-merged code to the new function. While this could be avoided by adding new definitions, we'd also have to create new names for them which would be awkward. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-07-15ARM: EXYNOS: Move SYSREG definition into sys-reg specific filePankaj Dubey1-0/+1
While making PMU implementation to be device tree based, there are few register offsets related with SYSREG present in regs-pmu.h, so let's make a new header file "regs-sys.h" to keep all such SYSREG related register offsets and remove them from "regs-pmu.h" Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-06-18ARM: EXYNOS: fix pm code to check for cortex A9 rather than the SoCAbhilash Kesavan1-6/+9
We have an soc check to ensure that the scu and certain A9 specific registers are not accessed on Exynos5250 (which is A15 based). Rather than adding another soc specific check for 5420 let us test for the Cortex A9 primary part number. This resolves the below crash seen on exynos5420 during core switching after the CPUIdle consolidation series was merged. [ 155.975589] [<c0013174>] (scu_enable) from [<c001b0dc>] (exynos_cpu_pm_notifier+0x80/0xc4) [ 155.983833] [<c001b0dc>] (exynos_cpu_pm_notifier) from [<c003c1b0>] (notifier_call_chain+0x44/0x84) [ 155.992851] [<c003c1b0>] (notifier_call_chain) from [<c007a49c>] (cpu_pm_notify+0x20/0x3c) [ 156.001089] [<c007a49c>] (cpu_pm_notify) from [<c007a564>] (cpu_pm_exit+0x20/0x38) [ 156.008635] [<c007a564>] (cpu_pm_exit) from [<c0019e98>] (bL_switcher_thread+0x298/0x40c) [ 156.016788] [<c0019e98>] (bL_switcher_thread) from [<c003842c>] (kthread+0xcc/0xe8) [ 156.024426] [<c003842c>] (kthread) from [<c000e438>] (ret_from_fork+0x14/0x3c) [ 156.031621] Code: ea017fec c0530a00 c052e3f8 c0012dcc (e5903000 Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31Merge tag 'samsung-drivers-2' of ↵Olof Johansson1-1/+0
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>
2014-05-26ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynosDaniel Lezcano1-2/+2
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>
2014-05-26ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.cDaniel Lezcano1-1/+2
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>
2014-05-26ARM: EXYNOS: Move the power sequence call in the cpu_pm notifierDaniel Lezcano1-5/+22
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>
2014-05-26ARM: EXYNOS: Move the AFTR state function into pm.cDaniel Lezcano1-0/+29
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>
2014-05-26ARM: EXYNOS: Remove ifdef for scu_enable in pmDaniel Lezcano1-3/+1
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>
2014-05-26ARM: EXYNOS: Move scu_enable in the cpu_pm notifierDaniel Lezcano1-1/+6
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>
2014-05-26ARM: EXYNOS: Use the cpu_pm notifier for pmDaniel Lezcano1-0/+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>
2014-05-26ARM: EXYNOS: Encapsulate register access inside a function for pmDaniel Lezcano1-24/+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>
2014-05-25ARM: EXYNOS: Remove unnecessary inclusion of cpu.hSachin Kamat1-1/+0
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>
2014-05-15ARM: EXYNOS: Add generic cluster power control functionsAbhilash Kesavan1-0/+30
Add generic cluster power control functions for exynos based SoCS for cluster power up/down and to know the cluster status. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-15ARM: EXYNOS: Add generic cpu power control functions for exynos SoCsLeela Krishna Amudala1-0/+36
Add generic cpu power control functions for exynos based SoCS for cpu power up/down and to know the cpu status. Signed-off-by: Leela Krishna Amudala <leela.krishna@linaro.org> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-20ARM: EXYNOS: Allow wake-up using GIC interruptsTomasz Figa1-0/+53
This patch restores the ability to receive wake-up events from internal GIC interrupts, e.g. RTC tick or alarm interrupts. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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