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2016-03-20Merge tag 'armsoc-dt' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM DT updates from Arnd Bergmann: "These are all the updates to device tree files for 32-bit platforms, plus a couple of related 64-bit updates: New SoC support: - Allwinner A83T - Axis Artpec-6 SoC - Mediatek MT7623 SoC - TI Keystone K2G SoC - ST Microelectronics stm32f469 New board or machine support: - ARM Juno R2 - Buffalo Linkstation LS-QVL and LS-GL - Cubietruck plus - D-Link DIR-885L - DT support for ARM RealView PB1176 and PB11MPCore - Google Nexus 7 - Homlet v2 - Itead Ibox - Lamobo R1 - LG Optimus Black - Logicpd dm3730 - Raspberry Pi Model A Other changes include - Lots of updates for Qualcomm APQ8064, MSM8974 and others - Improved support for Nokia N900 and other OMAP machines - Common clk support for lpc32xx - HDLCD display on ARM - Improved stm32f429 support - Improved Renesas device support, r8a779x and others - Lots of Rockchip updates - Samsung cleanups - ADC support for Atmel SAMA5D2 - BCM2835 (Raspberry Pi) improvements - Broadcom Northstar Plus enhancements - OMAP GPMC rework - Several improvements for Atmel SAMA5D2 / Xplained - Global change to remove inofficial "arm,amba-bus" compatible string" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (350 commits) ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus" ARM: dts: artpec: dual-license on artpec6.dtsi ARM: dts: ux500: add synaptics RMI4 for Ux500 TVK DT arm64: dts: juno/vexpress: fix node name unit-address presence warnings arm64: dts: foundation-v8: add SBSA Generic Watchdog device node ARM: dts: at91: sama5d2 Xplained: add leds node ARM: dts: at91: sama5d2 Xplained: add user push button ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host ARM: dts: stm32f429: Enable Ethernet on Eval board ARM: dts: omap3-sniper: TWL4030 keypad support Revert "ARM: dts: DRA7: Add dt nodes for PWMSS" ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND ARM: dts: dm814x: dra62x: Fix NAND device nodes ARM: dts: stm32f429: Add Ethernet support ARM: dts: stm32f429: Add system config bank node ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes ARM: dts: at91: sama5d2: add dma properties to UART nodes ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node ARM: dts: exynos: Don't overheat the Odroid XU3-Lite on high load ARM: dts: exynos: Add cooling levels for Exynos5422/5800 CPUs ...
2016-03-20Merge tag 'armsoc-cleanup' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Arnd Bergmann: "A few simple cleanups across multiple platforms, not much standing out: - lpc32xx removes its private implementation of the clk API, after generic code was merged in 4.5 - all unused Makefile.boot files get removed - a number of simplifications for shmobile - asm/clkdev.h gets replaced with the asm-generic version after all mach/clkdev.h implementations are gone" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: shmobile: Kconfig: Get rid of old comment ARM: shmobile: Consolidate SCU mapping code arm: lpc32xx: remove direct control of GPIOs from shared mach file arm: lpc32xx: remove selected HAVE_IDE arm: lpc32xx: switch to common clock framework ARM: Use generic clkdev.h header ARM: plat-versatile: Remove unused clock.c file ARM: netx: remove redundant "depends on ARCH_NETX" ARM: integrator: remove redundant select in Kconfig ARM: drop unused Makefile.boot of Multiplatform SoCs ARM: mvebu: add missing of_node_put() ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code ARM: shmobile: Typo s/MIPDR/MPIDR/ ARM: shmobile: Add includes providing forward declarations ARM: shmobile: rcar-gen2: Make rcar_gen2_dma_contiguous static ARM: mv78xx0: use "depends on" instead of "if" after prompt
2016-02-25ARM: keystone: Create new binding for K2G SoCNishanth Menon1-0/+1
K2G SoC family is the newest version of the Keystone family of processors. The technical reference manual for K2G can be found here: http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf Add new bindings for K2G and the K2G evm. Also document these new bindings. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2016-02-08ARM: drop unused Makefile.boot of Multiplatform SoCsMasahiro Yamada1-1/+0
The variable "MACHINE" is empty if CONFIG_ARCH_MULTIPLATFORM=y, so these Makefile.boot files are never included. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Michal Simek <michal.simek@xilinx.com> (for Zynq) Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-08ARM: make virt_to_idmap() return unsigned longRussell King1-1/+1
Make virt_to_idmap() return an unsigned long rather than phys_addr_t. Returning phys_addr_t here makes no sense, because the definition of virt_to_idmap() is that it shall return a physical address which maps identically with the virtual address. Since virtual addresses are limited to 32-bit, identity mapped physical addresses are as well. Almost all users already had an implicit narrowing cast to unsigned long so let's make this official and part of this interface. Tested-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-01ARM: use const and __initconst for smp_operationsMasahiro Yamada2-2/+2
These smp_operations structures are not over-written, so add "const" qualifier and replace __initdata with __initconst. Also, add "static" where it is possible. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> # qcom part Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Wei Xu <xuwei5@hisilicon.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-10-06ARM: keystone: Update compatible to have SoC specific matchesNishanth Menon1-0/+3
With future SoCs of keystone2 family, the generic compatible match may not be sufficient to handle SoC specific handling. So introduce matches based on SoC compatiblity. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-07-20ARM: keystone: Remove clk-provider.h includeStephen Boyd1-1/+0
This file doesn't use the clk provider APIs. Remove the include. Cc: Nishanth Menon <nm@ti.com> Cc: Sekhar Nori <nsekhar@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-26Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds2-37/+17
Pull ARM updates from Russell King: "Bigger items included in this update are: - A series of updates from Arnd for ARM randconfig build failures - Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to drivers/irqchip/ - Move ARMs SP804 timer to drivers/clocksource/ - Perf updates from Mark Rutland in preparation to move the ARM perf code into drivers/ so it can be shared with ARM64. - MCPM updates from Nicolas - Add support for taking platform serial number from DT - Re-implement Keystone2 physical address space switch to conform to architecture requirements - Clean up ARMv7 LPAE code, which goes in hand with the Keystone2 changes. - L2C cleanups to avoid unlocking caches if we're prevented by the secure support to unlock. - Avoid cleaning a potentially dirty cache containing stale data on CPU initialisation - Add ARM-only entry point for secondary startup (for machines that can only call into a Thumb kernel in ARM mode). Same thing is also done for the resume entry point. - Provide arch_irqs_disabled via asm-generic - Enlarge ARMv7M vector table - Always use BFD linker for VDSO, as gold doesn't accept some of the options we need. - Fix an incorrect BSYM (for Thumb symbols) usage, and convert all BSYM compiler macros to a "badr" (for branch address). - Shut up compiler warnings provoked by our cmpxchg() implementation. - Ensure bad xchg sizes fail to link" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits) ARM: Fix build if CLKDEV_LOOKUP is not configured ARM: fix new BSYM() usage introduced via for-arm-soc branch ARM: 8383/1: nommu: avoid deprecated source register on mov ARM: 8391/1: l2c: add options to overwrite prefetching behavior ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone ARM: 8384/1: VDSO: force use of BFD linker ARM: 8385/1: VDSO: group link options ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations ARM: remove __bad_xchg definition ARM: 8369/1: ARMv7M: define size of vector table for Vybrid ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion ARM: 8364/1: fix BE32 module loading ARM: 8360/1: add secondary_startup_arm prototype in header file ARM: 8359/1: correct secondary_startup_arm mode ARM: proc-v7: sanitise and document registers around errata ARM: proc-v7: clean up MIDR access ...
2015-06-01ARM: redo TTBR setup code for LPAERussell King1-13/+0
Re-engineer the LPAE TTBR setup code. Rather than passing some shifted address in order to fit in a CPU register, pass either a full physical address (in the case of r4, r5 for TTBR0) or a PFN (for TTBR1). This removes the ARCH_PGD_SHIFT hack, and the last dangerous user of cpu_set_ttbr() in the secondary CPU startup code path (which was there to re-set TTBR1 to the appropriate high physical address space on Keystone2.) Tested-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01ARM: keystone2: rename init_meminfo to pv_fixupRussell King1-2/+2
The init_meminfo() method is not about initialising meminfo - it's about fixing up the physical to virtual translation so that we use a different physical address space, possibly above the 4GB physical address space. Therefore, the name "init_meminfo()" is confusing. Rename it to pv_fixup() instead. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Tested-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01ARM: keystone2: move address space switch printk into generic codeRussell King1-3/+0
There is no point platform code doing this, let's move it into the generic code so it doesn't get duplicated. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Tested-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01ARM: keystone2: move update of the phys-to-virt constants into generic codeRussell King1-17/+10
Make the init_meminfo function return the offset to be applied to the phys-to-virt translation constants. This allows us to move the update into generic code, along with the requirements for this update. This avoids platforms having to know the details of the phys-to-virt translation support. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Tested-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01ARM: keystone2: move platform notifier initialisation into platform initRussell King1-6/+9
We ideally want the init_meminfo function to do nothing but return the delta to be applied to PHYS_OFFSET - it should do nothing else. As we can detect in platform init code whether we are running in the high physical address space, move the platform notifier initialisation entirely into the platform init code. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Tested-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-12arm: keystone: remove boilerplate code and use USE_PM_CLK_RUNTIME_OPSRajendra Nayak1-32/+1
USE_PM_CLK_RUNTIME_OPS is introduced so we don't repeat the same code to do runtime_suspend and runtime_resume across users of PM clocks. Use it to remove the boilerplate code. Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Kevin Hilman <khilman@linaro.org> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-02-19ARM: make of_device_ids constUwe Kleine-König1-1/+1
of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs in arch/arm as const, too. While at it also add some __initconst annotations. Acked-by: Jason Cooper <jason@lakedameon.net> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19ARM: make arrays containing machine compatible strings constUwe Kleine-König1-1/+1
The definition static const char *axxia_dt_match[] __initconst = { ... defines a changable array of constant strings. That is you must not do: *axxia_dt_match[0] = 'k'; but axxia_dt_match[0] = "different string"; is fine. So the annotation __initconst is wrong and yields a compiler error when other really const variables are added with __initconst. As the struct machine_desc member dt_compat is declared as const char *const *dt_compat; making the arrays const is the better alternative over changing all annotations to __initdata. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-13ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki1-1/+1
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere in the code under arch/arm/ (the defconfig files will be modified later). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
2014-11-04ARM: keystone: add pcie related optionsMurali Karicheri1-0/+2
Now that Keystone PCI controller is merged, add pcie related options by default for keystone architecture so that driver can be enabled in the build. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2014-06-17ARM: keystone requires ARM_PATCH_PHYS_VIRTArnd Bergmann1-0/+1
The dynamic relocation that the keystone platform performs only works if we can pick the phys offset at boot time. It's possible that there is another solution for this, but this is the easiest workaround. Kernels with ARM_PATCH_PHYS_VIRT are not portable across platforms, and I see no reason why anyone would run a kernel without ARM_PATCH_PHYS_VIRT on keystone. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-06-05ARM: keystone: Drop use of meminfo since its not available anymoreSantosh Shilimkar1-3/+3
Laura's series removed the meminfo structure and its no longer available. Update keystone code to remove the usage of it. Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-27ARM: keystone: remove redundant reset stuffIvan Khoronzhuk1-34/+0
Remove reset stuff in flavour of using keystone reset driver: driver/power/reset/keystone-reset.c Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-08ARM: keystone: Update the dma offset for non-dt platform devicesSantosh Shilimkar1-0/+26
Tested-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-08ARM: keystone: Switch over to coherent memory address spaceSantosh Shilimkar3-1/+89
With late code patching updates for LPAE machines has merged now and memblock conversion from bootmem is on its way, Keystone can switch to the coherent memory address space which starts beyond 4GB boundary. The idmap alias needs are managed via virt_to_idmap() for boot purpose. Tested-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-04-05Merge tag 'dt-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM SoC device tree changes from Arnd Bergmann: "A large part of the arm-soc patches are nowadays DT changes, adding support for new SoCs, boards and devices without changing kernel source. The plan is still to move the devicetree files out of the kernel tree and reduce the amount of churn going on here, but we keep finding reasons to delay doing that. Changes are really all over the place, with little sticking out particularly. We have contributions from a total of 116 people in this branch. Unfortunately, the size of this branch also causes a significant number of conflicts at the moment, typically when subsystem maintainers merge patches that change the driver at the same time as the dts files. In most cases this could be avoided because the dts changes are supposed to be compatible in both ways, and we are asking everyone to send ARM dts changes through our tree only" * tag 'dt-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (541 commits) dts: stmmac: Document the clocks property in the stmmac base document dts: socfpga: Add DTS entry for adding the stmmac glue layer for stmmac. ARM: STi: stih41x: Add support for the FSM Serial Flash Controller ARM: STi: stih416: Add support for the FSM Serial Flash Controller ARM: tegra: fix Dalmore pinctrl configuration ARM: dts: keystone: use common "ti,keystone" compatible instead of -evm ARM: dts: k2hk-evm: set ubifs partition size for 512M NAND ARM: dts: Build all keystone dt blobs ARM: dts: keystone: Fix control register range for clktsip ARM: dts: keystone: Fix domain register range for clkfftc1 ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot ARM: dts: add bcm590xx pmu support and enable for bcm28155-ap ARM: dts: bcm21664: Add device tree files. ARM: DT: bcm21664: Device tree bindings ARM: efm32: properly namespace i2c location property ARM: efm32: fix unit address part in USART2 device nodes' names ARM: mvebu: Enable NAND controller in Armada 385-DB ARM: mvebu: Add support for NAND controller in Armada 38x SoC ARM: mvebu: Add the Core Divider clock to Armada 38x SoCs ARM: mvebu: Add a 2 GHz fixed-clock on Armada 38x SoCs ...
2014-03-20ARM: dts: keystone: use common "ti,keystone" compatible instead of -evmIvan Khoronzhuk1-4/+1
As suggested by Olof Johansson at http://www.spinics.net/lists/arm-kernel/msg314009.html. It be better just keeping a "ti,keystone" top-level compatible and just using that to probe. If so we don't have to touch the file for new boards in the future. So use common "ti,keystone" compatible in keystone.c for all boards. Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-02-25ARM: dts: keystone: update for supporting K2L/K2E EVMsMurali Karicheri1-0/+3
This patch add compatibility strings for k2hk, k2l and k2e EVMs Cc: Olof Johansson <olof@lixom.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Kumar Gala <galak@codeaurora.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-02-19ARM: select HAVE_SMP for V7 multi-platformRob Herring1-1/+0
All V7 platforms can run SMP kernels, so make CONFIG_SMP visible for V7 multi-platform builds. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-02-19ARM: centralize common multi-platform kconfig optionsRob Herring1-3/+0
Multi-platform requires various kconfig options to be selected, so platforms don't need to select them individually. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-01-31ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not setGrygorii Strashko1-1/+0
Drop automatic selection of TI_EDMA from Keystone Kconfig file, as it produces build warning in case if CONFIG_DMADEVICES is not set: warning: (ARCH_KEYSTONE) selects TI_EDMA which has unmet direct dependencies (DMADEVICES && (ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE)) Instead enable TI EDMA support from defconfig. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-16ARM: keystone: Avoid calling of_clk_init() twiceSantosh Shilimkar1-1/+0
With commit 4178bac4f {ARM: call of_clk_init from default time_init handler}, of_clk_init() is always called on machines using default time_init handler. So drop the of_clk_init() from keystone code to avoid below boot errors because of double call. _of_pll_clk_init: error initializing pll mainpllclk _of_pll_clk_init: error initializing pll papllclk _of_pll_clk_init: error initializing pll ddr3apllclk _of_pll_clk_init: error initializing pll ddr3bpllclk _of_pll_clk_init: error initializing pll armpllclk Reported-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-12-16ARM: keystone: Make PM bus ready before populating platform devicesSantosh Shilimkar3-1/+2
Keystone PM bus makes use of generic PM clock core backend. Since generic PM clock core uses platform bus notifiers to track events like ADD_DEVICE/DEL_DEVICE and to fill clock lists per each device, we need to initialise Keystone PM domains before the platform devices have been created. Hence, fix it by moving keystone_pm_runtime_init() before platform devices have been populated. Reported-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-12-16ARM: keystone: enable DMA zone for LPAESantosh Shilimkar2-0/+4
Keystone II peripheral devices support 32-bit DMA and hence can access only first 2GB of the memory address space. So set the platform dma_zone_size to handle that case. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-12-16ARM: keystone: enable big endian supportTaras Kondratiuk1-0/+1
Keystone code is big endian compatible, so mark it as one that supports big endian. Note this patch just allows to select Big endian build for ARCH_KEYSTONE, but it does not enable BE by default. Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-11-12Merge tag 'devicetree-for-3.13' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: "DeviceTree updates for 3.13. This is a bit larger pull request than usual for this cycle with lots of clean-up. - Cross arch clean-up and consolidation of early DT scanning code. - Clean-up and removal of arch prom.h headers. Makes arch specific prom.h optional on all but Sparc. - Addition of interrupts-extended property for devices connected to multiple interrupt controllers. - Refactoring of DT interrupt parsing code in preparation for deferred probe of interrupts. - ARM cpu and cpu topology bindings documentation. - Various DT vendor binding documentation updates" * tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits) powerpc: add missing explicit OF includes for ppc dt/irq: add empty of_irq_count for !OF_IRQ dt: disable self-tests for !OF_IRQ of: irq: Fix interrupt-map entry matching MIPS: Netlogic: replace early_init_devtree() call of: Add Panasonic Corporation vendor prefix of: Add Chunghwa Picture Tubes Ltd. vendor prefix of: Add AU Optronics Corporation vendor prefix of/irq: Fix potential buffer overflow of/irq: Fix bug in interrupt parsing refactor. of: set dma_mask to point to coherent_dma_mask of: add vendor prefix for PHYTEC Messtechnik GmbH DT: sort vendor-prefixes.txt of: Add vendor prefix for Cadence of: Add empty for_each_available_child_of_node() macro definition arm/versatile: Fix versatile irq specifications. of/irq: create interrupts-extended property microblaze/pci: Drop PowerPC-ism from irq parsing of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code. of/irq: Use irq_of_parse_and_map() ...
2013-10-14ARM: keystone: fix PM domain initcall to be keystone onlyKevin Hilman1-0/+12
initcalls need to have platform specific checks so they are not run in multi-platform builds. Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-10-10ARM: keystone: Select TI_EDMA to be able to enable SPI driverSantosh Shilimkar1-0/+1
Select the TI EDMA to be able to enable SPI driver on Keystone SOCs. Keystone SOCs share the EDMA IP with other TI SOCs. Note that EDMA support hasn't been added and tested yet for Keystone SOC data(device tree), but building it, is harmless since driver like SPI already takes care of supporting non-dma mode in the absence of such data. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-10-10ARM: keystone: add PM domain support for clock managementSantosh Shilimkar2-0/+73
Add runtime PM core support to Keystone SOCs by using the pm_clk infrastructure of the PM core. Patch is based on Kevin's pm_domain work on DaVinci SOCs. Keystone SOC doesn't have depedency to enable clocks in early in the boot and hence the clock and PM domain initialisation is done at subsys_init() level. Cc: Kevin Hilman <khilman@linaro.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-10-09ARM: keystone: remove unnecessary prom.h includeRob Herring1-1/+0
Remove unnecessary prom.h include in preparation to make prom.h optional. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-10-08ARM: keystone: Enable clock driversSantosh Shilimkar1-0/+1
Enable common clock drivers on Keystone 2 based SOCs. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-08-29Merge tag 'omap-for-v3.12/fixes-non-critical-signed' of ↵Olof Johansson1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical From Tony Lindgren: Omap fixes for the merge window that are not urgent enough for the -rc series. * tag 'omap-for-v3.12/fixes-non-critical-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2: use 'int' instead of 'unsigned' for variable 'gpmc_irq_start' ARM: OMAP2: remove useless variable 'ret' ARM: OMAP: dma: fix error return code in omap_system_dma_probe() ARM: OMAP2+: fix wrong address when loading PRM_FRAC_INCREMENTOR_DENUMERATOR_RELOAD ARM: OMAP2+: am33xx-restart: trigger warm reset on omap2+ boards ARM: OMAP2: Use a consistent AM33XX SoC option description ARM: OMAP2+: Remove legacy device creation for McPDM and DMIC + Linux 3.11-rc6
2013-08-05ARM: keystone: Drop the un-necessary dsb from keystone_cpu_smc()Santosh Shilimkar1-1/+0
This was added because of some legacy reasons from OMAP SOCs but after testing and verifying with the keystone hardware folks, the dsb in keystone_cpu_smc() is not necessary. So drop it. Reported-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-08-05ARM: Keystone: No need to preserve r12 across smc callSantosh Shilimkar1-2/+2
Register r12 is caller-save, so no need preserve it keystone_cpu_smc(). Reported-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-08-05ARM: keystone: remove redundant smp_init_cpus definitionSudeep KarkadaNagesha1-1/+0
arm_dt_init_cpu_maps is called before smp_init_cpus. It makes the platform/SoC definition of smp_init_cpus unnecessary. Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-08-05ARM: keystone: drop useless HAVE_SCHED_CLOCKPaul Bolle1-1/+0
The Kconfig symbol HAVE_SCHED_CLOCK got removed in v3.4, with commit 6905a65879b5 ("ARM: Make the sched_clock framework mandatory"). But a select statement for it popped up again through commit 828989ad87af ("ARM: keystone: Add minimal TI Keystone platform support"). Drop that statement, as it is useless. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> [santosh.shilimkar@ti.com: Minor edit in the subject] Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-07-23ARM: keystone: fix compilation warningVincent Stehlé1-1/+1
Fix the following compilation warning: arch/arm/mach-keystone/keystone.c:74:2: warning: initialization from incompatible pointer type [enabled by default] arch/arm/mach-keystone/keystone.c:74:2: warning: (near initialization for ‘__mach_desc_KEYSTONE.restart’) [enabled by default] Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com> Cc: Robin Holt <holt@sgi.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: trivial@kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
2013-07-14arm: delete __cpuinit/__CPUINIT usage from all ARM usersPaul Gortmaker1-1/+1
The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) and are flagged as __cpuinit -- so if we remove the __cpuinit from the arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit related content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the ARM uses of the __cpuinit macros from C code, and all __CPUINIT from assembly code. It also had two ".previous" section statements that were paired off against __CPUINIT (aka .section ".cpuinit.text") that also get removed here. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-24ARM: keystone: Move CPU bringup code to dedicated asm fileSantosh Shilimkar4-13/+43
Because of inline asm usage in platsmp.c, smc instruction creates build failure for ARM V6+V7 build where as using instruction encoding for smc breaks the thumb2 build. So move the code snippet to separate asm file and mark it with 'armv7-a$(plus_sec)' to avoid any build issues. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-24ARM: keystone: select ARM_ERRATA_798181 only for SMPArnd Bergmann1-1/+1
Selecting this symbol causes a build warning without SMP: warning: (ARCH_KEYSTONE) selects ARM_ERRATA_798181 which has unmet direct dependencies (CPU_V7 && SMP) Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-06-17ARM: keystone: Enable SMP support on Keystone machinesSantosh Shilimkar5-0/+75
Add basic SMP support for Keystone machines. This does not include support for CPU hotplug for now. Cc: Arnd Bergmann <arnd@arndb.de> Cc: arm@kernel.org Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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