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2019-04-25ARM: dts: qcom-apq8064: Set 'cxo_board' as ref clock of the DSI PHYMatthias Kaehlcke
Add 'xo_board' as ref clock for the DSI PHY, it was previously hardcoded in the PLL 'driver' for the 28nm 8960 PHY. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-04-25LS1021A: dtsi: add ftm quad decoder entriesPatrick Havelange
Add the 4 Quadrature counters for this board. Reviewed-by: Esben Haabendal <esben@haabendal.dk> Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25clk: ti: dra7: disable the RNG and TIMER12 clkctrl clocks on HS devicesTero Kristo
RNG and TIMER12 are reserved for secure side usage only on HS devices, so disable their clkctrl clocks on HS SoCs also. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-25ARM: omap2+: hwmod: drop CLK_IS_BASIC flag usageTero Kristo
CLK_IS_BASIC flag is about to get deprecated, and as such, can't be used. Instead, the API call for checking whether a clock is of type hw_omap shall be used, so convert the code to use this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-25crypto: shash - remove shash_desc::flagsEric Biggers
The flags field in 'struct shash_desc' never actually does anything. The only ostensibly supported flag is CRYPTO_TFM_REQ_MAY_SLEEP. However, no shash algorithm ever sleeps, making this flag a no-op. With this being the case, inevitably some users who can't sleep wrongly pass MAY_SLEEP. These would all need to be fixed if any shash algorithm actually started sleeping. For example, the shash_ahash_*() functions, which wrap a shash algorithm with the ahash API, pass through MAY_SLEEP from the ahash API to the shash API. However, the shash functions are called under kmap_atomic(), so actually they're assumed to never sleep. Even if it turns out that some users do need preemption points while hashing large buffers, we could easily provide a helper function crypto_shash_update_large() which divides the data into smaller chunks and calls crypto_shash_update() and cond_resched() for each chunk. It's not necessary to have a flag in 'struct shash_desc', nor is it necessary to make individual shash algorithms aware of this at all. Therefore, remove shash_desc::flags, and document that the crypto_shash_*() functions can be called from any context. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-04-24ARM: dts: s5pv210: Fix camera clock provider on Goni boardKrzysztof Kozlowski
The camera driver (according also to bindings) registers a clock provider if clock-output-names property is present and later the sensors use registered clocks. The DTS for S5Pv210 Goni board was incorrectly adding a child node with clock output cells but without clock-output-names property. Although the DTS was compiling (with "/soc/camera/clock-controller: missing or empty reg/ranges property" warning), the clock provider was not registered. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-24ARM: dts: exynos: Properly override node to use MDMA0 on Universal C210Krzysztof Kozlowski
The Universal C210 (Exynos4210) uses the secure interface of MDMA0, instead of regular one - non-secure MDMA1. DTS was overriding MDMA1 node address which caused DTC W=1 warning: arch/arm/boot/dts/exynos4.dtsi:707.25-716.6: Warning (simple_bus_reg): /soc/amba/mdma@12850000: simple-bus unit address format error, expected "12840000" Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-24ARM: dts: exynos: Move fixed-clocks out of soc on Exynos3250Krzysztof Kozlowski
The three fixed-clocks (xusbxti, xxti and xtcxo) are inputs to the Exynos3250 therefore they should not be inside the soc node. This also fixes DTC W=1 warning: arch/arm/boot/dts/exynos3250.dtsi:112.21-139.5: Warning (simple_bus_reg): /soc/fixed-rate-clocks: missing or empty reg/ranges property Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-24ARM: dts: exynos: Remove unneeded address/size cells from fixed-clock on ↵Krzysztof Kozlowski
Exynos3250 xusbxti fixed-clock should not have address/size cells because it does not have any children. This also fixes DTC W=1 warning: arch/arm/boot/dts/exynos3250.dtsi:112.21-139.5: Warning (simple_bus_reg): /soc/fixed-rate-clocks: missing or empty reg/ranges property Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-04-24ARM: socfpga_defconfig: enable LTC2497Alan Tull
Enable the LTC2497 driver to support the two LTC2497's that are on the SoCFPGA Arria10 Devkit. Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2019-04-24ARM: dts: exynos: Move pmu and timer nodes out of socKrzysztof Kozlowski
The ARM PMU and ARM architected timer nodes are part of ARM CPU design therefore they should not be inside the soc node. This also fixes DTC W=1 warnings like: arch/arm/boot/dts/exynos3250.dtsi:106.21-135.5: Warning (simple_bus_reg): /soc/fixed-rate-clocks: missing or empty reg/ranges property arch/arm/boot/dts/exynos3250.dtsi:676.7-680.5: Warning (simple_bus_reg): /soc/pmu: missing or empty reg/ranges property Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
2019-04-24arm64: KVM: Enable VHE support for :G/:H perf event modifiersAndrew Murray
With VHE different exception levels are used between the host (EL2) and guest (EL1) with a shared exception level for userpace (EL0). We can take advantage of this and use the PMU's exception level filtering to avoid enabling/disabling counters in the world-switch code. Instead we just modify the counter type to include or exclude EL0 at vcpu_{load,put} time. We also ensure that trapped PMU system register writes do not re-enable EL0 when reconfiguring the backing perf events. This approach completely avoids blackout windows seen with !VHE. Suggested-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-04-24arm64: KVM: Encapsulate kvm_cpu_context in kvm_host_dataAndrew Murray
The virt/arm core allocates a kvm_cpu_context_t percpu, at present this is a typedef to kvm_cpu_context and is used to store host cpu context. The kvm_cpu_context structure is also used elsewhere to hold vcpu context. In order to use the percpu to hold additional future host information we encapsulate kvm_cpu_context in a new structure and rename the typedef and percpu to match. Signed-off-by: Andrew Murray <andrew.murray@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-04-24KVM: arm/arm64: Context-switch ptrauth registersMark Rutland
When pointer authentication is supported, a guest may wish to use it. This patch adds the necessary KVM infrastructure for this to work, with a semi-lazy context switch of the pointer auth state. Pointer authentication feature is only enabled when VHE is built in the kernel and present in the CPU implementation so only VHE code paths are modified. When we schedule a vcpu, we disable guest usage of pointer authentication instructions and accesses to the keys. While these are disabled, we avoid context-switching the keys. When we trap the guest trying to use pointer authentication functionality, we change to eagerly context-switching the keys, and enable the feature. The next time the vcpu is scheduled out/in, we start again. However the host key save is optimized and implemented inside ptrauth instruction/register access trap. Pointer authentication consists of address authentication and generic authentication, and CPUs in a system might have varied support for either. Where support for either feature is not uniform, it is hidden from guests via ID register emulation, as a result of the cpufeature framework in the host. Unfortunately, address authentication and generic authentication cannot be trapped separately, as the architecture provides a single EL2 trap covering both. If we wish to expose one without the other, we cannot prevent a (badly-written) guest from intermittently using a feature which is not uniformly supported (when scheduled on a physical CPU which supports the relevant feature). Hence, this patch expects both type of authentication to be present in a cpu. This switch of key is done from guest enter/exit assembly as preparation for the upcoming in-kernel pointer authentication support. Hence, these key switching routines are not implemented in C code as they may cause pointer authentication key signing error in some situations. Signed-off-by: Mark Rutland <mark.rutland@arm.com> [Only VHE, key switch in full assembly, vcpu_has_ptrauth checks , save host key in ptrauth exception trap] Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Cc: Christoffer Dall <christoffer.dall@arm.com> Cc: kvmarm@lists.cs.columbia.edu [maz: various fixups] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-04-23Merge tag 'syscalls-5.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull syscall numbering updates from Arnd Bergmann: "arch: add pidfd and io_uring syscalls everywhere This comes a bit late, but should be in 5.1 anyway: we want the newly added system calls to be synchronized across all architectures in the release. I hope that in the future, any newly added system calls can be added to all architectures at the same time, and tested there while they are in linux-next, avoiding dependencies between the architecture maintainer trees and the tree that contains the new system call" * tag 'syscalls-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: arch: add pidfd and io_uring syscalls everywhere
2019-04-23arch: mostly remove <asm/segment.h>Christoph Hellwig
A few architectures use <asm/segment.h> internally, but nothing in common code does. Remove all the empty or almost empty versions of it, including the asm-generic one. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-04-23ARM: multi_v7_defconfig: Enable missing drivers for supported ChromebooksEnric Balletbo i Serra
Enable following drivers for merged devices: - Batteries with BQ27XXX chips for Minnie boards. - Elan eKTH I2C touchscreen for Minnie boards. - GPIO charger for all Veyron boards. - Rockchip SARADC driver for all rk3288 boards. - Rockchip eFUSE driver for all rk3288 boards. - TPM security chip for all Veyron boards. - ChromeOS EC userspace interface for all chromebooks boards. - ChromeOS EC light and proximity sensors for some chromebooks. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-23ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmuWen Yang
The call to of_get_next_child returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./arch/arm/mach-rockchip/platsmp.c:250:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 241, but without a corresponding object release within this function. ./arch/arm/mach-rockchip/platsmp.c:260:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 241, but without a corresponding object release within this function. ./arch/arm/mach-rockchip/platsmp.c:263:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 241, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Cc: Russell King <linux@armlinux.org.uk> Cc: Heiko Stuebner <heiko@sntech.de> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-23ARM: 8857/1: efi: enable CP15 DMB instructions before cleaning the cacheArd Biesheuvel
The EFI stub is entered with the caches and MMU enabled by the firmware, and once the stub is ready to hand over to the decompressor, we clean and disable the caches. The cache clean routines use CP15 barrier instructions, which can be disabled via SCTLR. Normally, when using the provided cache handling routines to enable the caches and MMU, this bit is enabled as well. However, but since we entered the stub with the caches already enabled, this routine is not executed before we call the cache clean routines, resulting in undefined instruction exceptions if the firmware never enabled this bit. So set the bit explicitly in the EFI entry code, but do so in a way that guarantees that the resulting code can still run on v6 cores as well (which are guaranteed to have CP15 barriers enabled) Cc: <stable@vger.kernel.org> # v4.9+ Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8856/1: NOMMU: Fix CCR register faulty initialization when MPU is disabledTigran Tadevosyan
When CONFIG_ARM_MPU is not defined, the base address of v7M SCB register is not initialized with correct value. This prevents enabling I/D caches when the L1 cache poilcy is applied in kernel. Fixes: 3c24121039c9da14692eb48f6e39565b28c0f3cf ("ARM: 8756/1: NOMMU: Postpone MPU activation till __after_proc_init") Signed-off-by: Tigran Tadevosyan <tigran.tadevosyan@arm.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: fix function graph tracer and unwinder dependenciesRussell King
Naresh Kamboju recently reported that the function-graph tracer crashes on ARM. The function-graph tracer assumes that the kernel is built with frame pointers. We explicitly disabled the function-graph tracer when building Thumb2, since the Thumb2 ABI doesn't have frame pointers. We recently changed the way the unwinder method was selected, which seems to have made it more likely that we can end up with the function- graph tracer enabled but without the kernel built with frame pointers. Fix up the function graph tracer dependencies so the option is not available when we have no possibility of having frame pointers, and adjust the dependencies on the unwinder option to hide the non-frame pointer unwinder options if the function-graph tracer is enabled. Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8858/1: vdso: use $(LD) instead of $(CC) to link VDSOMasahiro Yamada
We use $(LD) to link vmlinux, modules, decompressors, etc. VDSO is the only exceptional case where $(CC) is used as the linker driver, but I do not know why we need to do so. VDSO uses a special linker script, and does not link standard libraries at all. I changed the Makefile to use $(LD) rather than $(CC). I confirmed the same vdso.so.raw was still produced. Users will be able to use their favorite linker (e.g. lld instead of of bfd) by passing LD= from the command line. My plan is to rewrite all VDSO Makefiles to use $(LD), then delete cc-ldoption. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8855/1: remove unused <asm/limits.h>Masahiro Yamada
No one includes this. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8850/1: use memblocks_presentPeng Fan
arm_memory_present is doing same thing as memblocks_present, so let's use common code memblocks_present instead of platform specific arm_memory_present. Patchwork: https://patchwork.kernel.org/patch/10805693/ Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8854/1: drop -mauto-itStefan Agner
The assembler option -mauto-it is no longer a valid option. The last remaining references have been removed from the documentation in July 2009 [0]. The currently supported binutils version is 2.20 (released in September 2009) or higher where gas supports -mimplicit-it=always. Drop the fallback to -mauto-it and use -mimplicit-it=always only. [0] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=529707530657a333a304c651c808ea630c955223 Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8846/1: warn if divided syntax assembler is usedStefan Agner
Remove the -mno-warn-deprecated assembler flag to make sure the GNU assembler warns in case non-unified syntax is used. Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8853/1: drop WASM to work around LLVM issueStefan Agner
Currently LLVM's integrated assembler does not recognize .w form of the pld instructions (LLVM Bug 40972 [0]): ./arch/arm/include/asm/processor.h:133:5: error: invalid instruction "pldw.wt%a0 n" ^ <inline asm>:2:1: note: instantiated into assembly here pldw.w [r0] ^ 1 error generated. The W macro for generating wide instructions when targeting Thumb-2 is not strictly required for the preload data instructions (pld, pldw) since they are only available as wide instructions. The GNU assembler works with or without the .w appended when compiling an Thumb-2 kernel. Drop the macro to work around LLVM Bug 40972 issue. [0] https://bugs.llvm.org/show_bug.cgi?id=40972 Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8852/1: uaccess: use unified assembler language syntaxStefan Agner
Convert the conditional infix to a postfix to make sure this inline assembly is unified syntax. Since gcc assumes non-unified syntax when emitting ARM instructions, make sure to define the syntax as unified. This allows to use LLVM's integrated assembler. Additionally, for GCC ".syntax unified" for inline assembly. When compiling non-Thumb2 GCC always emits a ".syntax divided" at the beginning of the inline assembly which makes the assembler fail. Since GCC 5 there is the -masm-syntax-unified GCC option which make GCC assume unified syntax asm and hence emits ".syntax unified" even in ARM mode. However, the option is broken since GCC version 6 (see GCC PR88648 [1]). Work around by adding ".syntax unified" as part of the inline assembly. [0] https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html#index-masm-syntax-unified [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88648 Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: 8851/1: add TUSERCOND() macro for conditional postfixStefan Agner
Unified assembly syntax requires conditionals to be postfixes. TUSER() currently only takes a single argument which then gets appended t (with translation) on every instruction. This fixes a build error when using LLVM's integrated assembler: In file included from kernel/futex.c:72: ./arch/arm/include/asm/futex.h:116:3: error: invalid instruction, did you mean: strt? "2: " TUSER(streq) " %3, [%4]n" ^ <inline asm>:5:4: note: instantiated into assembly here 2: streqt r2, [r4] ^~~~~~ Additionally, for GCC ".syntax unified" for inline assembly. When compiling non-Thumb2 GCC always emits a ".syntax divided" at the beginning of the inline assembly which makes the assembler fail. Since GCC 5 there is the -masm-syntax-unified GCC option which make GCC assume unified syntax asm and hence emits ".syntax unified" even in ARM mode. However, the option is broken since GCC version 6 (see GCC PR88648 [1]). Work around by adding ".syntax unified" as part of the inline assembly. [0] https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html#index-masm-syntax-unified [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88648 Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-04-23ARM: dts: Add queue manager and NPE to the IXP4xx DTSILinus Walleij
The AHB queue manager and Network Processing Engines are present on all IXP4xx SoCs, so we add them to the overarching device tree include. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23soc: ixp4xx: qmgr: Pass resourcesLinus Walleij
Instead of using hardcoded base address implicitly obtained through <linux/io.h>, pass the physical base for the QMGR block as a memory resource and remap it in the driver. Also pass the two IRQs as resources and obtain them in the driver. Use devm_* accessors and simplify the error path in the process. Drop memory region request as this is done by the devm_ioremap* functions. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23soc: ixp4xx: npe: Pass addresses as resourcesLinus Walleij
Instead of using hardcoded base addresses implicitly obtained through <linux/io.h>, pass the physical base for the three NPE blocks as memory resources and remap these in the driver. Drop the memory request region business, this will anyways be done by devm_* remapping functions. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Turn the QMGR into a platform deviceLinus Walleij
Instead of registering everything related to the QMGR unconditionally in the module_init() call (which will never work with multiplatform) create a platform device and probe the QMGR like any other device. Put the device second in the list of devices added for the platform so it is there when the dependent network and crypto drivers probe later on. This probe() path will not be taken unconditionally on device tree boots, so remove the DT guard. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Turn the NPE into a platform deviceLinus Walleij
Instead of registering everything related to the NPE unconditionally in the module_init() call (which will never work with multiplatform) create a platform device and probe the NPE like any other device. Put the device first in the list of devices added for the platform so it is there when the dependent network and crypto drivers probe later on. This probe() path will not be taken unconditionally on device tree boots, so remove the DT guard. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Move IXP4xx QMGR and NPE headersLinus Walleij
This moves the IXP4xx Queue Manager and Network Processing Engine headers out of the <mack/*> include path as that is incompatible with multiplatform. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Move NPE and QMGR to drivers/socLinus Walleij
The Network Processing Engine and Queue Manager are versatile firmware components used by several IXP4xx drivers. Drivers are relying on getting access to these components using <mach/*> headers which does not work with multiplatform. We need to find a better place for the drivers to live. Let's first move them to drivers/soc and the start to refactor a bit by passing resources and moving headers. This patch introduce static IRQ assignments but that will be fixed by later patches in this series. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: dts: Add some initial IXP4xx device treesLinus Walleij
This adds a device tree for the IXP4xx-based Linksys NSLU2 and Gateworks GW2358 which encompass the Gateworks Cambria family. These will be the first IXP4xx device tree platforms. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Add device tree boot supportLinus Walleij
This adds a minimal support for booting IXP4xx systems from device tree. We have to add hacks to the QMGR, NPE and notably also ethernet and watchdog drivers so that they don't crash the platform: these drivers are unconditionally starting to grab regions of statically remapped IO space with no concern of the device model or other platforms. We will go in and properly fix these drivers as we go along but for now this hack gets us to a place where we can start working on proper device tree support for these platforms. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Switch to use new timer driverLinus Walleij
This augments the IXP4xx to select and use the new timer driver in drivers/clocksource and removes the old code in the machine. Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Switch to use new IRQ+GPIO driversLinus Walleij
This deletes the old irq+gpiochip combo from the IXP4xx machine and switches it over to use the new drivers merged in respective subsystem. Cc: Jason Cooper <jason@lakedaemon.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: dts: imx7s: Specify #io-channel-cells in ADC nodesAndrey Smirnov
Specify #io-channel-cells in ADC nodes. Needed to be able to reference them by phandle. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Chris Healy <cphealy@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Fabio Estevam <festevam@gmail.com> Cc: Rob Herring <robh@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-22Merge tag 'v5.1-rc6' into for-5.2/blockJens Axboe
Pull in v5.1-rc6 to resolve two conflicts. One is in BFQ, in just a comment, and is trivial. The other one is a conflict due to a later fix in the bio multi-page work, and needs a bit more care. * tag 'v5.1-rc6': (770 commits) Linux 5.1-rc6 block: make sure that bvec length can't be overflow block: kill all_q_node in request_queue x86/cpu/intel: Lower the "ENERGY_PERF_BIAS: Set to normal" message's log priority coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping mm/kmemleak.c: fix unused-function warning init: initialize jump labels before command line option parsing kernel/watchdog_hld.c: hard lockup message should end with a newline kcov: improve CONFIG_ARCH_HAS_KCOV help text mm: fix inactive list balancing between NUMA nodes and cgroups mm/hotplug: treat CMA pages as unmovable proc: fixup proc-pid-vm test proc: fix map_files test on F29 mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n mm/memory_hotplug: do not unlock after failing to take the device_hotplug_lock mm: swapoff: shmem_unuse() stop eviction without igrab() mm: swapoff: take notice of completion sooner mm: swapoff: remove too limiting SWAP_UNUSE_MAX_TRIES mm: swapoff: shmem_find_swap_entries() filter out other types slab: store tagged freelist for off-slab slabmgmt ... Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-04-22ARM: dts: vf610-zii-dev-rev-b: Specify CS as GPIO_ACTIVE_LOW in spi0Andrey Smirnov
Specify CS as GPIO_ACTIVE_LOW in spi0 to fix the following warning: m25p128@0 enforce active low on chipselect handle Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Chris Healy <cphealy@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Fabio Estevam <festevam@gmail.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-22ARM: dts: vf610-zii-dev: Mark i2c0 SCL as GPIO_OPEN_DRAINAndrey Smirnov
Mark i2c0 SCL as GPIO_OPEN_DRAIN to fix the following warning: gpio-36 (scl): enforced open drain please flag it properly in DT/ACPI DSDT/board file Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Chris Healy <cphealy@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Fabio Estevam <festevam@gmail.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-22ARM: dts: Add support for ZII i.MX7 RPU2 boardAndrey Smirnov
Add support for ZII's i.MX7 based Remote Peripheral Unit 2 (RPU2) board. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Chris Healy <cphealy@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Fabio Estevam <festevam@gmail.com> Cc: Rob Herring <robh@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-22ARM: dts: bugfix tqma7 soft reset issueBruno Thomsen
Running reboot command on the TQMa7 board would just hang infinite at the end of the system shutdown process. Handling of i.MX7 errata e10574: Watchdog: A watchdog timeout or software trigger will not reset the SOC. Moved pinctrl from common mba7 to common tqma7 dtsi as it improves readability of errata handling. Most integrators of this SoM will likely use the development board as inspiration for handling this SoC issue. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-21ARM: mvebu: kirkwood: remove error message when retrieving mac addressChris Packham
Kirkwood has always had the ability to retrieve the local-mac-address from the hardware (usually this was configured by the bootloader). This is particularly useful when dealing with a legacy non-DT aware bootloader. The "error" message just indicated that the board used an old bootloader and in many cases users can't do anything about this. The message probably should have been pr_info() to inform the user that the kernel has been helpful but rather than than let's remove it entirely to make the kernel less noisy. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-04-21ARM: dts: armada-38x: add interrupts for watchdogChris Packham
The first interrupt is for the regular watchdog timeout. Normally the RSTOUT line will trigger a reset before this interrupt fires but on systems with a non-standard reset it may still trigger. The second interrupt is for a timer1 which is used as a pre-timeout for the watchdog. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-04-21ARM: dts: imx53: Add Menlosystems M53 boardMarek Vasut
Add device tree for the Menlosystems board based on i.MX53 M53 SoM. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> To: linux-arm-kernel@lists.infradead.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-04-21ARM: dts: imx53: Rename M53 SoM touchscreen nodeMarek Vasut
Rename the touchscreen node to match contemporary design. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> To: linux-arm-kernel@lists.infradead.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>