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2015-01-20FIQ: Implement WDT FIQ debuggerRenn Wu
Implement Tegra WDT FIQ debug function. Default is disabled. Bug 1581432 Change-Id: Ic81ab4cd3285080016b37191e6e0fab18e330a30 Signed-off-by: Renn Wu <rewu@nvidia.com> Reviewed-on: http://git-master/r/#/c/271988 Reviewed-on: http://git-master/r/662550 Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
2014-04-15fiq_debugger: move into drivers/staging/android/fiq_debugger/Colin Cross
Move fiq_debugger into drivers/staging/android/fiq_debugger/ to allow for sharing between ARM and ARM64. Change-Id: I6ca5e8b7e3d000f57da3234260261c5592cef2a8 Signed-off-by: Colin Cross <ccross@android.com>
2013-07-01ARM: Add generic fiq serial debuggerIliyan Malchev
Change-Id: Ibb536c88f0dbaf4766d0599296907e35e42cbfd6 Signed-off-by: Iliyan Malchev <malchev@google.com> Signed-off-by: Arve Hjønnevåg <arve@android.com>
2013-07-01ARM: Add fiq_glueArve Hjønnevåg
Change-Id: I27d2554e07d9de204e0a06696d38db51608d9f6b Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Colin Cross <ccross@android.com>
2013-05-04Merge tag 'firmware-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM platform specific firmware interfaces from Olof Johansson: "Two platforms, bcm and exynos have their own firmware interfaces using the "secure monitor call", this adds support for those. We had originally planned to have a third set of patches in here, which would extend support for the existing generic "psci" call that is used on multiple platforms as well as Xen and KVM guests, but that ended up getting dropped because the patches were not ready in time." * tag 'firmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: bcm: mark bcm_kona_smc_init as __init ARM: bcm281xx: Add DT support for SMC handler ARM: bcm281xx: Add L2 cache enable code ARM: EXYNOS: Add secure firmware support to secondary CPU bring-up ARM: EXYNOS: Add IO mapping for non-secure SYSRAM. ARM: EXYNOS: Add support for Exynos secure firmware ARM: EXYNOS: Add support for secure monitor calls ARM: Add interface for registering and calling firmware-specific operations
2013-05-02ARM: 7709/1: mcpm: Add explicit AFLAGS to support v6/v7 multiplatform kernelsDave Martin
The full mcpm layer is not likely to be relevant to v6 based platforms, so a multiplatform kernel won't use that code if booted on v6 hardware. This patch modifies the AFLAGS for affected mcpm .S files to specify armv7-a explicitly for that code. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-24ARM: mcpm: generic SMP secondary bringup and hotplug supportNicolas Pitre
Now that the cluster power API is in place, we can use it for SMP secondary bringup and CPU hotplug in a generic fashion. Signed-off-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Will Deacon <will.deacon@arm.com>
2013-04-24ARM: mcpm_head.S: vlock-based first man electionDave Martin
Instead of requiring the first man to be elected in advance (which can be suboptimal in some situations), this patch uses a per- cluster mutex to co-ordinate selection of the first man. This should also make it more feasible to reuse this code path for asynchronous cluster resume (as in CPUidle scenarios). We must ensure that the vlock data doesn't share a cacheline with anything else, or dirty cache eviction could corrupt it. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Will Deacon <will.deacon@arm.com>
2013-04-24ARM: multi-cluster PM: secondary kernel entry codeNicolas Pitre
CPUs in cluster based systems, such as big.LITTLE, have special needs when entering the kernel due to a hotplug event, or when resuming from a deep sleep mode. This is vectorized so multiple CPUs can enter the kernel in parallel without serialization. The mcpm prefix stands for "multi cluster power management", however this is usable on single cluster systems as well. Only the basic structure is introduced here. This will be extended with later patches. In order not to complexify things more than they currently have to, the planned work to make runtime adjusted MPIDR based indexing and dynamic memory allocation for cluster states is postponed to a later cycle. The MAX_NR_CLUSTERS and MAX_CPUS_PER_CLUSTER static definitions should be sufficient for those systems expected to be available in the near future. Signed-off-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Will Deacon <will.deacon@arm.com>
2013-04-09ARM: Add interface for registering and calling firmware-specific operationsTomasz Figa
Some boards are running with secure firmware running in TrustZone secure world, which changes the way some things have to be initialized. This patch adds an interface for platforms to specify available firmware operations and call them. A wrapper macro, call_firmware_op(), checks if the operation is provided and calls it if so, otherwise returns -ENOSYS to allow fallback to legacy operation.. By default no operations are provided. Example of use: In code using firmware ops: __raw_writel(virt_to_phys(exynos4_secondary_startup), CPU1_BOOT_REG); /* Call Exynos specific smc call */ if (call_firmware_op(cpu_boot, cpu) == -ENOSYS) cpu_boot_legacy(...); /* Try legacy way */ gic_raise_softirq(cpumask_of(cpu), 1); In board-/platform-specific code: static int platformX_do_idle(void) { /* tell platformX firmware to enter idle */ return 0; } static int platformX_cpu_boot(int i) { /* tell platformX firmware to boot CPU i */ return 0; } static const struct firmware_ops platformX_firmware_ops = { .do_idle = exynos_do_idle, .cpu_boot = exynos_cpu_boot, /* other operations not available on platformX */ }; static void __init board_init_early(void) { register_firmware_ops(&platformX_firmware_ops); } Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-01-12irqchip: Move ARM VIC to drivers/irqchipRob Herring
Now that we have drivers/irqchip, move VIC irqchip to drivers/irqchip. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de>
2013-01-12irqchip: Move ARM GIC to drivers/irqchipRob Herring
Now that we have drivers/irqchip, move GIC irqchip to drivers/irqchip. This is necessary to share the GIC with arm and arm64. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de>
2012-04-06ARM: remove ixp23xx and ixp2000 platformsRob Herring
ixp2xxx platforms have had no real changes since ~2006 and the maintainer has said on irc that they can be removed: 13:05 < nico> do you still care about ixp2000? 13:22 < lennert> not really, no 13:58 < nico> do you think we could remove it from the kernel tree? 14:01 < lennert> go for it, and remove ixp23xx too while you're at it Removing will help simplify ARM consolidation in general and PCI re-work specifically. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
2012-03-29Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dmaengine update from Vinod Koul: "This includes the cookie cleanup by Russell, the addition of context parameter for dmaengine APIs, more arm dmaengine driver cleanup by moving code to dmaengine, this time for imx by Javier and pl330 by Boojin along with the usual driver fixes." Fix up some fairly trivial conflicts with various other cleanups. * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (67 commits) dmaengine: imx: fix the build failure on x86_64 dmaengine: i.MX: Fix merge of cookie branch. dmaengine: i.MX: Add support for interleaved transfers. dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages. dmaengine: imx-dma: remove 'imx_dmav1_baseaddr' and 'dma_clk'. dmaengine: imx-dma: remove unused arg of imxdma_sg_next. dmaengine: imx-dma: remove internal structure. dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure. dmaengine: imx-dma: remove 'in_use' field of 'internal' structure. dmaengine: imx-dma: remove sg member from internal structure. dmaengine: imx-dma: remove 'imxdma_setup_sg_hw' function. dmaengine: imx-dma: remove 'imxdma_config_channel_hw' function. dmaengine: imx-dma: remove 'imxdma_setup_mem2mem_hw' function. dmaengine: imx-dma: remove dma_mode member of internal structure. dmaengine: imx-dma: remove data member from internal structure. dmaengine: imx-dma: merge old dma-v1.c with imx-dma.c dmaengine: at_hdmac: add slave config operation dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic dmaengine/dma_slave: introduce inline wrappers dma: imx-sdma: Treat firmware messages as warnings instead of erros ...
2012-03-24ARM: riscpc: move time-acorn.c to mach-rpcRussell King
Nothing but RiscPC makes use of the Acorn timekeeping code, so move it into mach-rpc. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-08DMA: PL330: Merge PL330 driver into drivers/dma/Boojin Kim
Currently there were two part of DMAC PL330 driver for support old styled s3c-pl330 which has been merged into drivers/dma/pl330.c driver. Actually, there is no reason to separate them now. Basically this patch merges arch/arm/common/pl330.c into drivers/dma/pl330.c driver and removes useless exported symbol, externed function and so on. The newer pl330 driver tested on SMDKV310 and SMDK4212 boards Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2011-04-10ARM: 6872/1: arch:common:Makefile Remove unused config in the Makefile.Justin P. Mattock
The patch below removes an unused config variable found by using a kernel cleanup script. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-04ARM: 6432/1: move timer-sp.c from versatile to commonRob Herring
From: Rob Herring <rob.herring@smooth-stone.com> The timer-sp h/w used on versatile platforms can also be used for other platforms, so move it to a common location. Signed-off-by: Rob Herring <rob.herring@smooth-stone.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-17Merge branches 'at91', 'bcmring', 'ep93xx', 'iop', 'misc', 'nomadik', ↵Russell King
'omap', 'pxa', 'spear' and 'versatile' into devel Conflicts: arch/arm/Makefile arch/arm/common/Makefile arch/arm/mm/Kconfig
2010-05-15ARM: 6132/1: PL330: Add common core driverJassi Brar
PL330 is a configurable DMA controller PrimeCell device. The register map of the device is well defined. The configuration of a particular implementation can be read from the six configuration registers CR0-4,Dn. This patch implements a driver for the specification:- http://infocenter.arm.com/help/topic/com.arm.doc.ddi0424a/DDI0424A_dmac_pl330_r0p0_trm.pdf The exported interface should be sufficient to implement a driver for any DMA API. Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-02ARM: ICST: kill duplicate icst codeRussell King
The only difference between ICST307 and ICST525 are the two arrays for calculating the S parameter; the code is now identical. Merge the two files and kill the duplicated code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-11[ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specificDmitry Eremin-Solenikov
collie_pm was the only non-PXA user of sharpsl_pm. Now as it's gone we can merge code into one single file to allow further cleanup. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-11-27[ARM] clkdev: add generic clkdev infrastructureRussell King
Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-22[RTC] remove old ARM rtc library codeRussell King
Now that all drivers using it are gone, remove the old ARM RTC library. Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-15[ARM] 4577/1: ITE 8152 PCI bridge supportMike Rapoport
This patch provides driver for ITE 8152 PCI bridge. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-22[ARM] 3620/2: ixp23xx: add uengine loader supportLennert Buytenhek
Patch from Lennert Buytenhek This patch allows the ixp2000 uengine loader that is already in the tree to also be used on the ixp23xx. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-21[ARM] 3373/1: move uengine loader to arch/arm/commonLennert Buytenhek
Patch from Lennert Buytenhek Move the uengine loader from arch/arm/mach-ixp2000 to arch/arm/common so that ixp23xx can use it too. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[ARM] Separate VIC (vectored interrupt controller) support from VersatileRussell King
Other machines may wish to make use of the VIC support code, so move it to arch/arm/common. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-07[ARM] Move AMBA bus code to drivers/amba/Russell King
Make the AMBA bus code visible to other architectures. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-05[ARM] 3228/1: SharpSL: Move PM code to arch/arm/commonRichard Purdie
Patch from Richard Purdie This patch moves a large chunk of the sharpsl_pm driver to arch/arm/common so that it can be reused on other devices such as the SL-5500 (collie). It also abstracts some functions from the core into the machine and platform specific parts of the driver to aid reuse. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-18[ARM] Add support for ARM GICRussell King
Add support for the ARM Generic Interrupt Controller. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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