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* clocksource: Use a plain u64 instead of cycle_tThomas Gleixner2016-12-251-1/+1
| | | | | | | | | | | | | | | | | | | | | There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org>
* ARM: document and update UNCACHEABLE_ADDR definitionsRussell King2016-08-261-1/+1
| | | | | | | | | | | | | Document the UNCACHEABLE_ADDR definitions for footbridge and SA1100 so that we know where they're located and/or what they're accessing. Change RiscPC to calculate the UNCACHEABLE_ADDR value from FLUSH_BASE as that's where we locate that. UNCACHEABLE_ADDR is used to perform an uncached access (ARMv4 terminology) necessary to force a CPU clock-switch to the memory- speed clock, as required for entering WFI. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* ARM: 8530/1: remove VIRT_TO_BUSArnd Bergmann2016-02-221-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | All drivers that are relevant for rpc or footbridge have stopped using virt_to_bus a while ago, so we can remove it and avoid some harmless randconfig warnings for drivers that we do not care about: drivers/atm/zatm.c: In function 'poll_rx': drivers/atm/zatm.c:401:18: warning: 'bus_to_virt' is deprecated [-Wdeprecated-declarations] skb = ((struct rx_buffer_head *) bus_to_virt(here[2]))->skb; FWIW, the remaining drivers using this are: ATM: firestream, zatm, ambassador, horizon ISDN: hisax/netjet V4L: STA2X11, zoran Net: Appletalk LTPC, Tulip DE4x5, Toshiba IrDA WAN: comtrol sv11, cosa, lanmedia, sealevel SCSI: DPT_I2O, buslogic VME: CA91C142 My best guess is that all of the above are so hopelessly obsolete that we are best off removing all of them form the kernel, but that can be done another time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug-ll: rework footbridge handlingArnd Bergmann2015-12-151-42/+0
| | | | | | | | | | | | | | | | | | | Footbridge has two debug ports that are handled a bit differently: The 8250 port uses the normal debug/8250.S implementation that is shared with a lot of other platforms, but it relies on the DEBUG_UART_8250 option to be turned on automatically instead of being selected by DEBUG_FOOTBRIDGE_COM1 as we do for most other platforms. I'm changing this to use a 'select' and change the dependency to the debug symbol rather than the platform symbol for consistency. The DC21285 UART has a separate top-level option, and relies on the traditional include/mach/debug-macro.S method. With the s3c64xx multiplatform series queued up for 4.5, it is now the last one that does this, so by moving this file to include/debug/dc21285.S, we can get all platforms to do things the same way. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-161-3/+2
| | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
* ARM: kill off set_irq_flags usageRob Herring2015-07-282-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Gregory Clement <gregory.clement@free-electrons.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Imre Kaloz <kaloz@openwrt.org> Acked-by: Krzysztof Halasa <khalasa@piap.pl> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Tony Lindgren <tony@atomide.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Simtec Linux Team <linux@simtec.co.uk> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM/dc21285-timer: Migrate to new 'set-state' interfaceViresh Kumar2015-07-171-25/+23
| | | | | | | | | | | | Migrate footbridge driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
* remove <asm/scatterlist.h>Christoph Hellwig2015-05-051-1/+1
| | | | | | | | We don't have any arch specific scatterlist now that parisc switched over to the generic one. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* kbuild: remove unnecessary variable initializaionsMasahiro Yamada2014-10-021-3/+0
| | | | | | | | | | | | | | | | Clearing obj-y, obj-m, obj-n, obj- in each Makefile is a useless habit. They are non-exported variables; therefore they are always empty whenever descending into each subdirectory. (Moreorver, obj-y and obj-m are also set to empty at the beginning of scripts/Makefile.build) Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
* ARM: 8113/1: remove remaining definitions of PLAT_PHYS_OFFSET from ↵Uwe Kleine-König2014-07-291-5/+0
| | | | | | | | | | | | | | | | | | | | | | <mach/memory.h> The platforms selecting NEED_MACH_MEMORY_H defined the start address of their physical memory in the respective <mach/memory.h>. With ARM_PATCH_PHYS_VIRT=y (which is quite common today) this is useless though because the definition isn't used but determined dynamically. So remove the definitions from all <mach/memory.h> and provide the Kconfig symbol PHYS_OFFSET with the respective defaults in case ARM_PATCH_PHYS_VIRT isn't enabled. This allows to drop the dependency of PHYS_OFFSET on !NEED_MACH_MEMORY_H which prevents compiling an integrator nommu-kernel. (CONFIG_PAGE_OFFSET which has "default PHYS_OFFSET if !MMU" expanded to "0x" because CONFIG_PHYS_OFFSET doesn't exist as INTEGRATOR selects NEED_MACH_MEMORY_H.) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 8025/1: Get rid of meminfoLaura Abbott2014-06-012-2/+2
| | | | | | | | | | | | | | | | memblock is now fully integrated into the kernel and is the prefered method for tracking memory. Rather than reinvent the wheel with meminfo, migrate to using memblock directly instead of meminfo as an intermediate. Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> Signed-off-by: Laura Abbott <lauraa@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge tag 'cleanup-3.15' of ↵Linus Torvalds2014-04-051-18/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Arnd Bergmann: "These cleanup patches are mainly move stuff around and should all be harmless. They are mainly split out so that other branches can be based on top to avoid conflicts. Notable changes are: - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no longer used (Uwe Kleine-König) - The Qualcomm MSM platform is split out into legacy mach-msm and new-style mach-qcom, to allow easier maintainance of the new hardware support without regressions (Kumar Gala) - A rework of some of the Kconfig logic to simplify multiplatform support (Rob Herring) - Samsung Exynos gets closer to supporting multiplatform (Sachin Kamat and others) - mach-bcm3528 gets merged into mach-bcm (Stephen Warren) - at91 gains some common clock framework support (Alexandre Belloni, Jean-Jacques Hiblot and other French people)" * tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits) ARM: hisi: select HAVE_ARM_SCU only for SMP ARM: efm32: allow uncompress debug output ARM: prima2: build reset code standalone ARM: at91: add PWM clock ARM: at91: move sam9261 SoC to common clk ARM: at91: prepare common clk transition for sam9261 SoC ARM: at91: updated the at91_dt_defconfig with support for the ADS7846 ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs ARM: at91: dt: Add at91sam9261 dt SoC support ARM: at91: switch sam9rl to common clock framework ARM: at91/dt: define main clk frequency of at91sam9rlek ARM: at91/dt: define at91sam9rl clocks ARM: at91: prepare common clk transition for sam9rl SoCs ARM: at91: prepare sam9 dt boards transition to common clk ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs ARM: at91: Add at91sam9rl DT SoC support ARM: at91: prepare at91sam9rl DT transition ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig ...
| * Merge tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux into ↵Olof Johansson2014-02-181-18/+0
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | next/cleanup This cleanup series gets rid of <mach/timex.h> for platforms not using ARCH_MULTIPLATFORM. (For multi-platform code it's already unused since 387798b (ARM: initial multiplatform support).) To make this work some code out of arch/arm needed to be adapted. The respective changes got acks by their maintainers to be taken via armsoc (with Andrew Morton substituting for Alessandro Zummo as rtc maintainer). Compared to the previous pull request there was another patch added that fixes a (non-critical) regression on ixp4xx. Olof Johansson asked to not squash this fix into the original commit to save him from the need to reverify the series. * tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux: ARM: ixp4xx: fix timer latch calculation ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, too ARM: rpc: stop using <mach/timex.h> ARM: ixp4xx: stop using <mach/timex.h> input: ixp4xx-beeper: don't use symbols from <mach/timex.h> ARM: at91: don't use <mach/timex.h> ARM: ep93xx: stop using mach/timex.h ARM: mmp: stop using mach/timex.h ARM: netx: stop using mach/timex.h ARM: sa1100: stop using mach/timex.h clocksource: sirf/marco+prima2: drop usage of CLOCK_TICK_RATE rtc: pxa: drop unused #define TIMER_FREQ rtc: at91sam9: include <mach/hardware.h> explicitly ARM/serial: at91: switch atmel serial to use gpiolib Signed-off-by: Olof Johansson <olof@lixom.net>
| | * ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, tooUwe Kleine-König2013-12-201-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While <mach/timex.h> isn't used for multi-platform builds since long it still is for "normal" builds. As the previous patches fix all sites to not make use of this per-platform file, it can go now for good also for platforms that are not (yet) converted to multi-platform. While at it there are no users of CLOCK_TICK_RATE any more, so also drop the dummy #define. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
* | | Merge tag 'fixes-non-critical-3.15' of ↵Linus Torvalds2014-04-053-2/+5
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC non-critical bug fixes from Arnd Bergmann: "Lots of isolated bug fixes that were not found to be important enough to be submitted before the merge window or backported into stable kernels. The vast majority of these came out of Arnd's randconfig testing and just prevents running into build-time bugs in configurations that we do not care about in practice" * tag 'fixes-non-critical-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits) ARM: at91: fix a typo ARM: moxart: fix CPU selection ARM: tegra: fix board DT pinmux setup ARM: nspire: Fix compiler warning IXP4xx: Fix DMA masks. Revert "ARM: ixp4xx: Make dma_set_coherent_mask common, correct implementation" IXP4xx: Fix Goramo Multilink GPIO conversion. Revert "ARM: ixp4xx: fix gpio rework" ARM: tegra: make debug_ll code build for ARMv6 ARM: sunxi: fix build for THUMB2_KERNEL ARM: exynos: add missing include of linux/module.h ARM: exynos: fix l2x0 saved regs handling ARM: samsung: select CRC32 for SAMSUNG_PM_CHECK ARM: samsung: select ATAGS where necessary ARM: samsung: fix SAMSUNG_PM_DEBUG Kconfig logic ARM: samsung: allow serial driver to be disabled ARM: s5pv210: enable IDE support in MACH_TORBRECK ARM: s5p64x0: fix building with only one soc type ARM: s3c64xx: select power domains only when used ARM: s3c64xx: MACH_SMDK6400 needs HSMMC1 ...
| * | | ARM: footbridge: make screen_info setup conditionalArnd Bergmann2014-03-211-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The global screen_info structure is used to communicate data about the console from platform code to the console driver, but is only defined on ARM if either the VGA or dummy consoles are in use. This changes the footbridge code so we don't try to access this structure in case it is not defined, which prevents a possible randconfig build error. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk>
| * | | ARM: footbridge: fix build with PCI disabledArnd Bergmann2014-03-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dc21285.c source file cannot be built when CONFIG_PCI is disabled, because it calls a number of PCI core interfaces. This changes the Makefile so we don't include this file in the build if CONFIG_PCI is disabled. No other code references anything defined inside of this file in this case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk>
| * | | ARM: footbridge: don't build floppy code for addin modeArnd Bergmann2014-03-211-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ARCH_EBSA285_ADDIN platform does not provide the ISA_DMA API, which is required by the floppy driver. Let's ensure that the floppy code can only be built when ISA_DMA is also enabled, by moving the select statement into ARCH_EBSA285_HOST. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk>
* | | ARM: 7995/1: footbridge: remove obsolete IRQF_DISABLEDMichael Opdenacker2014-03-123-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | This patch removes the IRQF_DISABLED flag from footbridge code. It's a NOOP since 2.6.35. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | ARM: 7945/1: footbridge: Switch to sched_clock_register()Stephen Boyd2014-02-101-2/+2
|/ / | | | | | | | | | | | | | | | | The 32 bit sched_clock interface supports 64 bits since 3.13-rc1. Upgrade to the 64 bit function to allow us to remove the 32 bit registration interface. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'for-linus' of ↵Linus Torvalds2014-01-241-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov: "Just a swath of driver fixes and cleanups, no new drivers this time (although ALPS now supports one of the newer protocols, more to come)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits) Input: wacom - add support for DTU-1031 Input: wacom - fix wacom->shared guards for dual input devices Input: edt_ft5x06 - use devm_* functions where appropriate Input: hyperv-keyboard - pass through 0xE1 prefix Input: logips2pp - fix spelling s/reciver/receiver/ Input: delete non-required instances of include <linux/init.h> Input: twl4030-keypad - convert to using managed resources Input: twl6040-vibra - remove unneeded check for CONFIG_OF Input: twl4030-keypad - add device tree support Input: twl6040-vibra - add missing of_node_put Input: twl4030-vibra - add missing of_node_put Input: i8042 - cleanup SERIO_I8042 dependencies Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on x86 Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32 Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on sparc Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO for SH_CAYMAN Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on mips Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64 Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge ...
| * | Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/FootbridgeMark Salter2014-01-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Architectures which might use an i8042 for serial IO to keyboard, mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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*---. \ \ Merge branches 'amba', 'fixes', 'kees', 'misc' and 'unstable/sa11x0' into ↵Russell King2014-01-215-17/+58
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| | | * ARM: footbridge: cleanup LEDs codeRussell King2013-12-293-13/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanup the LEDs code to use ioremap()/writeb() to access the register. This allows us to move the definitions out of a header file directly into the ebsa285 support code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * ARM: footbridge: add one-shot mode for DC21285 timerRussell King2013-12-291-2/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a one-shot mode for the DC21285 timer. This allows us to use the NO_HZ modes on this platform. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * ARM: footbridge: add sched_clock implementationRussell King2013-12-293-0/+20
| |_|/ |/| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * ARM: fix footbridge clockevent deviceRussell King2013-12-291-2/+3
| |/ |/| | | | | | | | | | | | | | | | | | | The clockevents code was being told that the footbridge clock event device ticks at 16x the rate which it actually does. This leads to timekeeping problems since it allows the clocksource to wrap before the kernel notices. Fix this by using the correct clock. Fixes: 4e8d76373c9fd ("ARM: footbridge: convert to clockevents/clocksource") Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: <stable@vger.kernel.org>
* | ARM: footbridge: fix EBSA285 LEDsRussell King2013-11-301-9/+13
| | | | | | | | | | | | | | | | | | | | - The LEDs register is write-only: it can't be read-modify-written. - The LEDs are write-1-for-off not 0. - The check for the platform was inverted. Fixes: cf6856d693dd ("ARM: mach-footbridge: retire custom LED code") Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: stable@vger.kernel.org
* | ARM: footbridge: fix VGA initialisationRussell King2013-11-302-2/+3
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | It's no good setting vga_base after the VGA console has been initialised, because if we do that we get this: Unable to handle kernel paging request at virtual address 000b8000 pgd = c0004000 [000b8000] *pgd=07ffc831, *pte=00000000, *ppte=00000000 0Internal error: Oops: 5017 [#1] ARM Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0+ #49 task: c03e2974 ti: c03d8000 task.ti: c03d8000 PC is at vgacon_startup+0x258/0x39c LR is at request_resource+0x10/0x1c pc : [<c01725d0>] lr : [<c0022b50>] psr: 60000053 sp : c03d9f68 ip : 000b8000 fp : c03d9f8c r10: 000055aa r9 : 4401a103 r8 : ffffaa55 r7 : c03e357c r6 : c051b460 r5 : 000000ff r4 : 000c0000 r3 : 000b8000 r2 : c03e0514 r1 : 00000000 r0 : c0304971 Flags: nZCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel which is an access to the 0xb8000 without the PCI offset required to make it work. Fixes: cc22b4c18540 ("ARM: set vga memory base at run-time") Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: <stable@vger.kernel.org>
* ARM: footbridge: fix build warnings for netwinderRussell King2013-10-311-4/+4
| | | | | | | | | arch/arm/mach-footbridge/netwinder-hw.c:695:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type arch/arm/mach-footbridge/netwinder-hw.c:702:2: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type arch/arm/mach-footbridge/netwinder-hw.c:712:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type arch/arm/mach-footbridge/netwinder-hw.c:714:2: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: move 8250 debug include into arch/arm/include/debug/Russell King2013-08-251-4/+0
| | | | | | | | | Now that the 8250 debug include can stand alone without requiring platforms to provide any macros, move it into the debug directory so it can be directly included. This allows us to get rid of a lot of debug-macros include files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: provide 8250 debug uart phys/virt address configuration optionsRussell King2013-08-251-9/+0
| | | | | | | Move the definition of the UART register addresses out of the platform specific header file into the Kconfig files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: provide 8250 debug uart register shift configuration optionRussell King2013-08-251-1/+0
| | | | | | | Move the definition of the UART register shift out of the platform specific header file into the Kconfig files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: debug: provide 8250 debug uart flow control configuration optionRussell King2013-08-251-1/+0
| | | | | | | Move the definition out of the machine class debug-macro.S header into the Kconfig files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: footbridge: fix overlapping PCI mappingsMike Frysinger2013-07-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8ef6e6201b26cb9fde79c1baa08145af6aca2815 (ARM: footbridge: use fixed PCI i/o mapping) broke booting on my netwinder. Before that, everything boots fine. Since then, it crashes on boot. With earlyprintk, I see it BUG-ing like so: kernel BUG at lib/ioremap.c:27! Internal error: Oops - BUG: 0 [#1] ARM ... [<c0139b54>] (ioremap_page_range+0x128/0x154) from [<c02e6a6c>] (dc21285_setup+0xd0/0x114) [<c02e6a6c>] (dc21285_setup+0xd0/0x114) from [<c02e4874>] (pci_common_init+0xa0/0x298) [<c02e4874>] (pci_common_init+0xa0/0x298) from [<c02e793c>] (netwinder_pci_init+0xc/0x18) [<c02e793c>] (netwinder_pci_init+0xc/0x18) from [<c02e27d0>] (do_one_initcall+0xb4/0x180) ... Russell points out it's because of overlapping PCI mappings that was added with the aforementioned commit. Rob thought the code would re-use the static mapping, but that turns out to not be the case and instead hits the BUG further down. After deleting this hunk as suggested by Russel, the system boots up fine again and all my PCI devices work (IDE, ethernet, the DC21285). Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Cc: stable@vger.kernel.org # v3.5+ Signed-off-by: Olof Johansson <olof@lixom.net>
* reboot: arm: change reboot_mode to use enum reboot_modeRobin Holt2013-07-093-5/+6
| | | | | | | | | | | | | | | | Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* reboot: arm: prepare reboot_mode for moving to generic kernel codeRobin Holt2013-07-091-1/+1
| | | | | | | | | | | | | | | Prepare for the moving the parsing of reboot= to the generic kernel code by making reboot_mode into a more generic form. Signed-off-by: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ARM: fix CONFIG_VIRT_TO_BUS handlingArnd Bergmann2013-03-181-0/+1
| | | | | | | | | | | | | | | | | 887cbce0 "arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS" and 4febd95a8 "Select VIRT_TO_BUS directly where needed" from Stephen Rothwell changed globally how CONFIG_VIRT_TO_BUS is selected, while my own a5d533ee0 "ARM: disable virt_to_bus/ virt_to_bus almost everywhere" was merged at the same time and changed which platforms select it on ARM. The result of this conflict was that we again see CONFIG_VIRT_TO_BUS on all ARM systems. This patch fixes up the problem and removes CONFIG_ARCH_NO_VIRT_TO_BUS again on ARM. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
* Merge tag 'cleanup-decompwdog-3.9' of ↵Olof Johansson2013-02-051-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup From Shawn Guo: The series cleans up ARCH_HAS_DECOMP_WDOG and arch_decomp_wdog which are unused on ARM architecure. Samsung has some code setting up wdog in arch_decomp_wdog(). But since CONFIG_S3C_BOOT_WATCHDOG is defined nowhere, it will not run. Otherwise, system can not boot at all when wdog is set up but no one pats it. * tag 'cleanup-decompwdog-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: samsung: remove unused arch_decomp_wdog() code ARM: remove unused arch_decomp_wdog() ARM: decompress: remove unused ARCH_HAS_DECOMP_WDOG Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: remove unused arch_decomp_wdog()Shawn Guo2013-01-111-1/+0
| | | | | | | | | | | | | | | | | | | | With ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c, all the arch_decomp_wdog() definition at platform level is unneeded. Remmove it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Jason Cooper <jason@lakedaemon.net>
* | Merge branch 'clocksource/cleanup' into next/cleanupOlof Johansson2013-01-141-5/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clockevent cleanup series from Shawn Guo. Resolved move/change conflict in mach-pxa/time.c due to the sys_timer cleanup. * clocksource/cleanup: clocksource: use clockevents_config_and_register() where possible ARM: use clockevents_config_and_register() where possible clockevents: export clockevents_config_and_register for module use + sync to Linux 3.8-rc3 Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-pxa/time.c
| * | ARM: use clockevents_config_and_register() where possibleShawn Guo2013-01-141-5/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clockevent core is able to figure out the best mult and shift, calculate min_delta_ns and max_delta_ns, with the necessary info passed into clockevents_config_and_register(). Use this combined configure and register function where possible to make the codes less error prone and gain some positive diff stat. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Tested-by: Roland Stigge <stigge@antcom.de> Acked-by: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: David Brown <davidb@codeaurora.org> Tested-by: Tony Lindgren <tony@atomide.com> Acked-by: Barry Song <baohua.song@csr.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Olof Johansson <olof@lixom.net>
* | ARM: delete struct sys_timerStephen Warren2012-12-247-16/+8
|/ | | | | | | | | | | | | | | | | | Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: config: sort select statements alphanumericallyRussell King2012-10-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As suggested by Andrew Morton: This is a pet peeve of mine. Any time there's a long list of items (header file inclusions, kconfig entries, array initalisers, etc) and someone wants to add a new item, they *always* go and stick it at the end of the list. Guys, don't do this. Either put the new item into a randomly-chosen position or, probably better, alphanumerically sort the list. lets sort all our select statements alphanumerically. This commit was created by the following perl: while (<>) { while (/\\\s*$/) { $_ .= <>; } undef %selects if /^\s*config\s+/; if (/^\s+select\s+(\w+).*/) { if (defined($selects{$1})) { if ($selects{$1} eq $_) { print STDERR "Warning: removing duplicated $1 entry\n"; } else { print STDERR "Error: $1 differently selected\n". "\tOld: $selects{$1}\n". "\tNew: $_\n"; exit 1; } } $selects{$1} = $_; next; } if (%selects and (/^\s*$/ or /^\s+help/ or /^\s+---help---/ or /^endif/ or /^endchoice/)) { foreach $k (sort (keys %selects)) { print "$selects{$k}"; } undef %selects; } print; } if (%selects) { foreach $k (sort (keys %selects)) { print "$selects{$k}"; } } It found two duplicates: Warning: removing duplicated S5P_SETUP_MIPIPHY entry Warning: removing duplicated HARDIRQS_SW_RESEND entry and they are identical duplicates, hence the shrinkage in the diffstat of two lines. We have four testers reporting success of this change (Tony, Stephen, Linus and Sekhar.) Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'late/fixes' into fixesOlof Johansson2012-10-071-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a series from Arnd that fixes a number of compiler warnings when building defconfigs on ARM. * late/fixes: ARM: footbridge: nw_gpio_lock is raw_spin_lock ARM: mv78xx0: correct addr_map_cfg __initdata annotation ARM: footbridge: remove RTC_IRQ definition ARM: soc: dependency warnings for errata ARM: ks8695: __arch_virt_to_dma type handling ARM: rpc: check device_register return code in ecard_probe ARM: davinci: don't mark da850_register_cpufreq as __init ARM: iop13xx: fix iq81340sc_atux_map_irq prototype ARM: iop13xx: mark iop13xx_scan_bus as __devinit ARM: mv78xx0: mark mv78xx0_timer_init as __init_refok ARM: s3c24xx: fix multiple section mismatch warnings ARM: at91: unused variable in at91_pm_verify_clocks ARM: at91: skip at91_io_desc definition for NOMMU ARM: pxa: work around duplicate definition of GPIO24_SSP1_SFRM ARM: pxa: remove sharpsl_fatal_check function ARM: pxa: define palmte2_pxa_keys conditionally ARM: pxa: Wunused-result warning in viper board file ARM: shark: fix shark_pci_init return code Fixed trivial conflicts in arch/arm/mach-at91/setup.c. Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: footbridge: remove RTC_IRQ definitionArnd Bergmann2012-10-071-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit bd8abc9a32c "ARM: mc146818rtc: remove unnecessary include of mach/irqs.h", building footbridge_defconfig results in this warning: In file included from include/linux/mc146818rtc.h:16:0, from arch/arm/mach-footbridge/isa-rtc.c:21: arch/arm/include/asm/mc146818rtc.h:10:0: warning: "RTC_IRQ" redefined [enabled by default] arch/arm/mach-footbridge/include/mach/irqs.h:93:0: note: this is the location of the previous definition The above commit was intentionally made to catch errors like this, where code relies on the RTC_IRQ definition. The only driver using it is the legacy PC-style drivers/char/rtc.c driver. However, the ARM architecture has been using the RTC_LIB framework since at least 2006, and that doesn't use it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: rtc-linux@googlegroups.com Cc: Russell King <linux@arm.linux.org.uk>
* | Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-10-015-294/+179
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM soc driver specific changes from Olof Johansson: - A long-coming conversion of various platforms to a common LED infrastructure - AT91 is moved over to use the newer MCI driver for MMC - Pincontrol conversions for samsung platforms - DT bindings for gscaler on samsung - i2c driver fixes for tegra, acked by i2c maintainer Fix up conflicts as per Olof. * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) drivers: bus: omap_l3: use resources instead of hardcoded irqs pinctrl: exynos: Fix wakeup IRQ domain registration check pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data pinctrl: exynos: Correct the detection of wakeup-eint node pinctrl: exynos: Mark exynos_irq_demux_eint as inline pinctrl: exynos: Handle only unmasked wakeup interrupts pinctrl: exynos: Fix typos in gpio/wkup _irq_mask pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa drivers: bus: Move the OMAP interconnect driver to drivers/bus/ i2c: tegra: dynamically control fast clk i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20 ARM: tegra: clock: remove unused clock entry for i2c ARM: tegra: clock: add connection name in i2c clock entry i2c: tegra: pass proper name for getting clock ARM: tegra: clock: add i2c fast clock entry in clock table ARM: EXYNOS: Adds G-Scaler device from Device Tree ARM: EXYNOS: Add clock support for G-Scaler ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used ...
| * | ARM: mach-footbridge: retire custom LED codeBryan Wu2012-08-015-294/+179
| |/ | | | | | | Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
* | ARM: footbridge: use fixed PCI i/o mappingRob Herring2012-07-264-30/+13
|/ | | | | | | | | Move footbridge PCI to fixed i/o mapping. io.h is still needed for the !MMU case. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* ARM: PCI: provide a default bus scan implementationRussell King2012-05-135-10/+5
| | | | | | | | | | Most PCI implementations perform simple root bus scanning. Rather than having each group of platforms provide a duplicated bus scan function, provide the PCI configuration ops structure via the hw_pci structure, and call the root bus scanning function from core ARM PCI code. Acked-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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