- 24 7月, 2013 1 次提交
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由 Sachin Kamat 提交于
With the recent cleanup in Exynos platform code notably commits 17859bec ("ARM: EXYNOS: Do not select legacy Kconfig symbols any more") and b9222210 ("ARM: EXYNOS: Remove mach/gpio.h"), the definition of ARCH_NR_GPIOS got removed. This started causing problems on SoCs like Exynos4412 which have more than the default number of GPIOs. Thus define this number in KConfig file which takes care of current SoC requirements and provides scope for GPIO expanders. Without this patch we get the following errors during boot: gpiochip_add: gpios 251..258 (gpv0) failed to register samsung-pinctrl 106e0000.pinctrl: failed to register gpio_chip gpv0, error code: -22 samsung-pinctrl: probe of 106e0000.pinctrl failed with error -22 Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 10 7月, 2013 2 次提交
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由 Fabio Estevam 提交于
imx_v6_v7_defconfig handles both multi-core and single-core SoCs, and it has CONFIG_SMP=y selected by default. With such config we cannot select ARM_ERRATA_364296, as it depends on !SMP. Let ARM_ERRATA_364296 be undependent on CONFIG_SMP, so that we can select this erratum for the ARM1136 SoCs, even if CONFIG_SMP=y is enabled. Reviewed-by: NDave Martin <Dave.Martin@arm.com> Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Kyungsik Lee 提交于
Integrates the LZ4 decompression code to the arm pre-boot code. Signed-off-by: NKyungsik Lee <kyungsik.lee@lge.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Borislav Petkov <bp@alien8.de> Cc: Florian Fainelli <florian@openwrt.org> Cc: Yann Collet <yann.collet.73@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 6月, 2013 1 次提交
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由 Jingoo Han 提交于
Enable PCIe support for Exynos5440 which has two PCIe controllers. Signed-off-by: NJingoo Han <jg1.han@samsung.com> Acked-by: NKukjin Kim <kgene.kim@samsung.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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- 26 6月, 2013 1 次提交
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由 Srinivas Kandagatla 提交于
The STiH415 is the next generation of HD, AVC set-top box processors for satellite, cable, terrestrial and IP-STB markets. It is an ARM Cortex-A9 1.0 GHz, dual-core CPU. Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com> CC: Stephen Gallimore <stephen.gallimore@st.com> CC: Stuart Menefy <stuart.menefy@st.com> CC: Arnd Bergmann <arnd@arndb.de> CC: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: NOlof Johansson <olof@lixom.net>
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- 25 6月, 2013 1 次提交
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由 Stephen Boyd 提交于
Move the existing clock code in mach-msm to the common clock framework. We lose our capability to set the rate of and enable a clock through debugfs. This is ok though because the debugfs features are mainly used for testing and development of new clock code. To maintain compatibility with the original MSM clock code we make a wrapper for clk_reset() that calls the struct msm_clk specific reset function. This is necessary for the usb and sdcc devices on MSM until a better suited API is made available. Cc: Saravana Kannan <skannan@codeaurora.org> Acked-by: NMike Turquette <mturquette@linaro.org> Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Signed-off-by: NDavid Brown <davidb@codeaurora.org>
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- 24 6月, 2013 2 次提交
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由 Arnd Bergmann 提交于
With the new default platform code, we can always boot using DT without requiring a board file, but we cannot build a kernel unless we select at least one CPU core, which breaks some "randconfig" builds. This adapts the ARCH_MULTI_V4T and ARCH_MULTI_V5 options so we always default to a common CPU core if no platform was enabled that picks something else. The default we pick for ARMv4T is ARM920T, while for ARMv5 we pick ARM926T. Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Gregory CLEMENT 提交于
This commit fixes the regression on Armada 370 (the kernal hang during boot) introduced by the commit: "ARM: 7691/1: mm: kill unused TLB_CAN_READ_FROM_L1_CACHE and use ALT_SMP instead". When coming out of either a Wait for Interrupt (WFI) or a Wait for Event (WFE) IDLE states, a specific timing sensitivity exists between the retiring WFI/WFE instructions and the newly issued subsequent instructions. This sensitivity can result in a CPU hang scenario. The workaround is to insert either a Data Synchronization Barrier (DSB) or Data Memory Barrier (DMB) command immediately after the WFI/WFE instruction. This commit was based on the work of Lior Amsalem, but heavily modified to apply the errata fix dynamically according to the processor type thanks to the suggestions of Russell King and Nicolas Pitre. Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: NWill Deacon <will.deacon@arm.com> Acked-by: NNicolas Pitre <nico@linaro.org> Tested-by: NWilly Tarreau <w@1wt.eu> Cc: <stable@vger.kernel.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 22 6月, 2013 1 次提交
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由 Daniel Tang 提交于
This patch adds support for the TI-Nspire platform. Changes between v1 and v2: * Added GENERIC_IRQ_CHIP to platform Kconfig Signed-off-by: NDaniel Tang <dt.tangr@gmail.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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- 21 6月, 2013 1 次提交
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由 Heiko Stuebner 提交于
This adds a generic devicetree board file and a dtsi for boards based on the RK3066a SoCs from Rockchip. Apart from the generic parts (gic, clocks, pinctrl) the only components currently supported are the timers, uarts and mmc ports (all DesignWare- based). Signed-off-by: NHeiko Stuebner <heiko@sntech.de> Acked-by: NOlof Johansson <olof@lixom.net>
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- 19 6月, 2013 5 次提交
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由 Tomasz Figa 提交于
This patch moves all platforms using the legacy watchdog reset helper function to the new watchdog reset driver. Signed-off-by: NTomasz Figa <tomasz.figa@gmail.com> Tested-by: NSylwester Nawrocki <sylvester.nawrocki@gmail.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Tomasz Figa 提交于
This patch adds selection of CONFIG_SPARSE_IRQ for ARCH_EXYNOS, since it is required by multiplatform and allows to remove the legacy mach/irqs.h header. To make this possible, a dummy IRQ_EINT_BIT macro is added to pm-core.h header to allow plat-samsung/pm.c compile. This macro is irrelevant for Exynos and will be removed after reworking Samsung pm code for multiplatform compatibility. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Tomasz Figa 提交于
This patch removes selection of several legacy Kconfig symbols from ARCH_EXYNOS to bypass compilation of code used only for ATAGS based boot. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Tomasz Figa 提交于
After removing support for ATAGS based boot on Exynos, there is not much that can be shared between Exynos and other S5P platforms. This patch makes Exynos a standalone Samsung platform, not using PLAT_S5P. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Tomasz Figa 提交于
This patch adds Kconfig entry that selects whether legacy Samsung GPIO driver should be built or not. For platforms that support only DT based boot, the new pinctrl driver is used and so the old one is not needed. Cc: Grant Likely <grant.likely@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 18 6月, 2013 3 次提交
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由 Matt Porter 提交于
Move mach-davinci/dma.c to common/edma.c so it can be used by OMAP (specifically AM33xx) as well. Signed-off-by: NMatt Porter <mporter@ti.com> Acked-by: Chris Ball <cjb@laptop.org> # davinci_mmc.c Acked-by: NMark Brown <broonie@linaro.org> Acked-by: NOlof Johansson <olof@lixom.net> [nsekhar@ti.com: dropped davinci sffsdr changes] Signed-off-by: NSekhar Nori <nsekhar@ti.com>
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由 Santosh Shilimkar 提交于
Texas Instruments Keystone family of multi-core devices are based on ARM Cortex A15. Patch adds basic definitions for a new Keystone sub-architecture in ARM. The TCI66xxK2H Communications Infrastructure Keystone SoCs are member of the C66x family based on TI's new KeyStone 2 multi-core SoC Architecture designed specifically for high performance wireless and networking infrastructure applications. The SOCs contains many subsystems like Cortex A15 ARM CorePacs, C66XX DSP CorePacs, MSMC memory controller, Tera Net bus, IP Network, Navigator, Hyperlink, 1G/10G Ethernet, Radio layers and queue based communication systems. Cc: Arnd Bergmann <arnd@arndb.de> Cc: arm@kernel.org Acked-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
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由 Stephen Warren 提交于
Add comments to machine_shutdown()/halt()/power_off()/restart() that describe their purpose and/or requirements re: CPUs being active/not. In machine_shutdown(), replace the call to smp_send_stop() with a call to disable_nonboot_cpus(). This completely disables all but one CPU, thus satisfying the requirement that only a single CPU be active for kexec. Adjust Kconfig dependencies for this change. In machine_halt()/power_off()/restart(), call smp_send_stop() directly, rather than via machine_shutdown(); these functions don't need to completely de-activate all CPUs using hotplug, but rather just quiesce them. Remove smp_kill_cpus(), and its call from smp_send_stop(). smp_kill_cpus() was indirectly calling smp_ops.cpu_kill() without calling smp_ops.cpu_die() on the target CPUs first. At least some implementations of smp_ops had issues with this; it caused cpu_kill() to hang on Tegra, for example. Since smp_send_stop() is only used for shutdown, halt, and power-off, there is no need to attempt any kind of CPU hotplug here. Adjust Kconfig to reflect that machine_shutdown() (and hence kexec) relies upon disable_nonboot_cpus(). However, this alone doesn't guarantee that hotplug will work, or even that hotplug is implemented for a particular piece of HW that a multi-platform zImage runs on. Hence, add error-checking to machine_kexec() to determine whether it did work. Suggested-by: NRussell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: NStephen Warren <swarren@nvidia.com> Acked-by: NWill Deacon <will.deacon@arm.com> Tested-by: NZhangfei Gao <zhangfei.gao@gmail.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 17 6月, 2013 6 次提交
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由 Jonathan Austin 提交于
Allows the user to select MPU support when compiling for ARM processors that support the PMSAv7. This ensures that CONFIG_SMP depends on the MPU in the case that no MMU is present. CONFIG_SMP_ON_UP is not implemented for nommu, so introduce an MMU dependency there. Signed-off-by: NJonathan Austin <jonathan.austin@arm.com> Reviewed-by: NWill Deacon <will.deacon@arm.com>
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由 Linus Walleij 提交于
Now that we removed our dependency on <mach/*> the U300 can be converted to mutliplatform. Remove the invalid restriction that U300 would not support AUTO_ZRELADDR (it does) and update the defconfig in the process. Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Linus Walleij 提交于
We have now transferred all the U300 peripherals to the device tree, so we just select USE_OF, and delete all static board data, then require that this platform shall be booted using the device tree and nothing else. This gets rid of the MMCI (PL180), PL022, and serial PL011 platform data entries and more. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Jon Medhurst 提交于
On Cortex-A9 before version r1p0, the LoUIS bit field of the CLIDR register returns zero when it should return one. This leads to cache maintenance operations which rely on this value to not function as intended, causing data corruption. The workaround for this errata is to detect affected CPUs and correct the LoUIS value read. Acked-by: NWill Deacon <will.deacon@arm.com> Acked-by: NNicolas Pitre <nico@linaro.org> Cc: stable@vger.kernel.org Signed-off-by: NJon Medhurst <tixy@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Eduardo Valentin 提交于
Bandgap is a device used to measure temperature on electronic equipments. It is widely used in digital integrated circuits. It is based on the dependency between silicon voltage and temperature. This patch introduce HAS_BANDGAP config entry. This config is a boolean value so that arch code can flag if they feature a bandgap device. This config entry follows the same idea behind ARCH_HAS_CPUFREQ. Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: NFabio Stevam <festevam@gmail.com> Acked-by: NTony Lindgren <tony@atomide.com> Acked-by: NAmit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: NEduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Magnus Damm 提交于
Adjust mach-shmobile to add a select for CONFIG_ARM_PATCH_PHYS_VIRT and at the same time remove NEED_MACH_MEMORY_H. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
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- 15 6月, 2013 2 次提交
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由 Tomasz Figa 提交于
This patch adds a Kconfig entry that enables compilation of legacy support code required for Samsung platforms that require ATAGS based boot. This allows to bypass compilation of this code when platforms without ATAGS support are selected. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Tomasz Figa 提交于
Since EXYNOS is now DT-only, it always requires USE_OF option to be selected. This patch moves USE_OF selection from entries of DT board files to ARCH_EXYNOS. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 13 6月, 2013 1 次提交
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由 Stephen Boyd 提交于
Nothing about the sched_clock implementation in the ARM port is specific to the architecture. Generalize the code so that other architectures can use it by selecting GENERIC_SCHED_CLOCK. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> [jstultz: Merge minor collisions with other patches in my tree] Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
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- 12 6月, 2013 3 次提交
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由 Alexander Shiyan 提交于
This patch adds support for SYSCON driver for CLPS711X targets. At this time there are no users for this driver, but it is will be used as start point to use in CLPS711X drivers and remove <mach/xx> dependencies. Signed-off-by: NAlexander Shiyan <shc_work@mail.ru> Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Alexander Shiyan 提交于
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru> Signed-off-by: NOlof Johansson <olof@lixom.net>
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由 Alexander Shiyan 提交于
This patch removes dependency of NEED_MACH_MEMORY_H for CLPS711X-target. Since some board may have memory holes, define ARCH_HAS_HOLES_MEMORYMODEL for these boards. Signed-off-by: NAlexander Shiyan <shc_work@mail.ru> Signed-off-by: NOlof Johansson <olof@lixom.net>
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- 05 6月, 2013 1 次提交
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由 Laurent Pinchart 提交于
GPIOLIB dependency handling was added to the PINCTRL core by commit 2afe8229 Author: Haojian Zhuang <haojian.zhuang@linaro.org> Date: Thu Mar 28 07:34:19 2013 +0800 pinctrl: core: add dependence of GPIOLIB There is not need to handle that dependency at the SH Mobile level anymore. Revert commit 6722f6cb Author: Magnus Damm <damm@opensource.se> Date: Mon Mar 18 22:58:18 2013 +0900 ARM: shmobile: Disallow PINCTRL without GPIOLIB Modify mach-shmobile to only select PINCTRL in case of ARCH_WANT_OPTIONAL_GPIOLIB is set. This fixes a build error triggered when adding a new SoC lacking GPIO software support (ARCH_WANT_OPTIONAL_GPIOLIB=n): Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
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- 04 6月, 2013 3 次提交
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由 Catalin Marinas 提交于
The patch adds support for THP (transparent huge pages) to LPAE systems. When this feature is enabled, the kernel tries to map anonymous pages as 2MB sections where possible. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> [steve.capper@linaro.org: symbolic constants used, value of PMD_SECT_SPLITTING adjusted, tlbflush.h included in pgtable.h, added PROT_NONE support.] Signed-off-by: NSteve Capper <steve.capper@linaro.org> Reviewed-by: NWill Deacon <will.deacon@arm.com>
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由 Catalin Marinas 提交于
This patch adds support for hugetlbfs based on the x86 implementation. It allows mapping of 2MB sections (see Documentation/vm/hugetlbpage.txt for usage). The 64K pages configuration is not supported (section size is 512MB in this case). Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> [steve.capper@linaro.org: symbolic constants replace numbers in places. Split up into multiple files, to simplify future non-LPAE support, removed huge_pmd_share code, as this is very rarely executed, Added PROT_NONE support]. Signed-off-by: NSteve Capper <steve.capper@linaro.org> Reviewed-by: NWill Deacon <will.deacon@arm.com>
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由 Stephen Rothwell 提交于
Ever since commit 45f035ab ("CONFIG_HOTPLUG should be always on"), it has been basically impossible to build a kernel with CONFIG_HOTPLUG turned off. Remove all the remaining references to it. Cc: Russell King <linux@arm.linux.org.uk> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Acked-by: NMauro Carvalho Chehab <mchehab@redhat.com> Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 31 5月, 2013 1 次提交
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由 Linus Walleij 提交于
This adds device tree support for the U300 timer, by making the memory base offset and IRQ dynamically assigned, then optionally looking them up from the device tree. Since the timer needs to be registered before any platform devices are created, we will go into the device tree and look up the "/timer@c0014000" node and read our base address and IRQ from there. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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- 30 5月, 2013 1 次提交
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由 Andrew Lunn 提交于
Register a platform driver structure for the cpufreq driver. Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Tested-by: NAdam Baker <linux@baker-net.org.uk> Signed-off-by: NJason Cooper <jason@lakedaemon.net>
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- 20 5月, 2013 1 次提交
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由 Viresh Kumar 提交于
This patch moves cpufreq driver of Samsung's ARM based s3c24xx platform to drivers/cpufreq. Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 07 5月, 2013 1 次提交
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由 Sebastian Hesselbarth 提交于
The CPU used in Marvell Dove SoCs is a PJ4 Sheeva core. Using CONFIG_CPU_PJ4 instead of CONFIG_CPU_V7 will enable iWMMXt extensions on Dove. Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: NJason Cooper <jason@lakedaemon.net> Acked-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 04 5月, 2013 1 次提交
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由 Russell King 提交于
We've had IRQ time accounting for the last six months, except for the Kconfig symbol. This somehow got missed out of the original patch. Add this now. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 30 4月, 2013 1 次提交
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由 Arnd Bergmann 提交于
Since we now have default implementations for init_time and init_irq, the init_machine callback is the only one that is not yet optional, but since simple DT based platforms all have the same of_platform_populate function call in there, we can consolidate them as well, and then actually boot with a completely empty machine_desc. Unofortunately we cannot just default to an empty init_machine: We cannot call of_platform_populate before init_machine because that does not work in case of auxdata, and we cannot call it after init_machine either because the machine might need to run code after adding the devices. To take the final step, this adds support for booting without defining any machine_desc whatsoever. For the case that CONFIG_MULTIPLATFORM is enabled, it adds a global machine descriptor that never matches any machine but is used as a fallback if nothing else matches. We assume that without CONFIG_MULTIPLATFORM, we only want to boot on the systems that the kernel is built for, so we still retain the build-time warning for missing machine descriptors and the run-time warning when the platform does not match in that case. In the case that we run on a multiplatform kernel and the machine provides a fully populated device tree, we attempt to keep booting, hoping that no machine specific callbacks are necessary. Finally, this also removes the misguided "select ARCH_VEXPRESS" that was only added to avoid a build error for allnoconfig kernels. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NOlof Johansson <olof@lixom.net> Cc: "Russell King - ARM Linux" <linux@arm.linux.org.uk> Cc: Rob Herring <robherring2@gmail.com>
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