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* ARM: 6538/1: Subarch IRQ handler macros V3Magnus Damm2010-12-24
| | | | | | | | | | | | | | | | Per subarch interrupt handler macros V3. This patch breaks out code from the irq_handler macro into arch_irq_handler and arch_irq_handler_default. The macros are put in the header file "entry-macro-multi.S" The arch_irq_handler_default macro is designed to be used by irq_handler in entry-armv.S while arch_irq_handler is suitable for per-subarch use. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6532/1: Allow machine to specify it's own IRQ handlers at run-timeeric miao2010-12-24
| | | | | | | | | | | | | | | | | | | | | | | | | | Normally different ARM platform has different way to decode the IRQ hardware status and demultiplex to the corresponding IRQ handler. This is highly optimized by macro irq_handler in entry-armv.S, and each machine defines their own macro to decode the IRQ number. However, this prevents multiple machine classes to be built into a single kernel. By allowing each machine to specify thier own handler, and making function pointer 'handle_arch_irq' to point to it at run time, this can be solved. And introduce CONFIG_MULTI_IRQ_HANDLER to allow both solutions to work. Comparing with the highly optimized macro of irq_handler, the new function must be written with care not to lose too much performance. And the IPI stuff on SMP is expected to move to the provided arch IRQ handler as well. The assembly code to invoke handle_arch_irq is optimized by Russell King. Signed-off-by: Eric Miao <eric.miao@canonical.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: Ensure experimental options are so markedRussell King2010-12-05
| | | | | | | | | | It is kernel-wide policy that options depending on EXPERIMENTAL should also have '(EXPERIMENTAL)' in their option text, and options with '(EXPERIMENTAL)' depend on EXPERIMENTAL. Ensure that all ARM options comply with this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: move high-usage mostly read variables in setup.c to __read_mostlyRussell King2010-12-05
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: implement support for read-mostly sectionsRussell King2010-12-05
| | | | | | | | | | | As our SMP implementation uses MESI protocols. Grouping together data which is mostly only read together means that we avoid unnecessary cache line bouncing when this code shares a cache line with other data. In other words, cache lines associated with read-mostly data are expected to spend most of their time in shared state. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6520/1: Kconfig: add new symbol MIGHT_HAVE_PCIHans Ulli Kroll2010-12-05
| | | | | | | | | | Today more boards with arm cpu have selectable pci bus. This patch makes this more scalable and remove line continuations in Kconfig Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: always build swp_emulate as ARMv7Russell King2010-11-26
| | | | | | | | swp_emulate is only used on ARMv7+, and includes ARMv7+ assembly instructions. Allow the assembler to accept ARMv7 instructions, but leave the compiler's code generation options alone. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6483/1: arm & sh: factorised duplicated clkdev.cJean-Christop PLAGNIOL-VILLARD2010-11-26
| | | | | | | | | | | | | factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6396/1: Add SWP/SWPB emulation for ARMv7 processorsLeif Lindholm2010-11-04
| | | | | | | | | | | | | | | | | | | | The SWP instruction was deprecated in the ARMv6 architecture, superseded by the LDREX/STREX family of instructions for load-linked/store-conditional operations. The ARMv7 multiprocessing extensions mandate that SWP/SWPB instructions are treated as undefined from reset, with the ability to enable them through the System Control Register SW bit. This patch adds the alternative solution to emulate the SWP and SWPB instructions using LDREX/STREX sequences, and log statistics to /proc/cpu/swp_emulation. To correctly deal with copy-on-write, it also modifies cpu_v7_set_pte_ext to change the mappings to priviliged RO when user RO. Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6384/1: Remove the domain switching on ARMv6k/v7 CPUsCatalin Marinas2010-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the domain switching functionality via the set_fs and __switch_to functions on cores that have a TLS register. Currently, the ioremap and vmalloc areas share the same level 1 page tables and therefore have the same domain (DOMAIN_KERNEL). When the kernel domain is modified from Client to Manager (via the __set_fs or in the __switch_to function), the XN (eXecute Never) bit is overridden and newer CPUs can speculatively prefetch the ioremap'ed memory. Linux performs the kernel domain switching to allow user-specific functions (copy_to/from_user, get/put_user etc.) to access kernel memory. In order for these functions to work with the kernel domain set to Client, the patch modifies the LDRT/STRT and related instructions to the LDR/STR ones. The user pages access rights are also modified for kernel read-only access rather than read/write so that the copy-on-write mechanism still works. CPU_USE_DOMAINS gets disabled only if the hardware has a TLS register (CPU_32v6K is defined) since writing the TLS value to the high vectors page isn't possible. The user addresses passed to the kernel are checked by the access_ok() function so that they do not point to the kernel space. Tested-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2010-11-01
|\ | | | | | | | | | | | | | | | | * 'next-spi' of git://git.secretlab.ca/git/linux-2.6: spi/pl022: fix erroneous platform data in U300 spi: fixed odd static string conventions in core code spi/bfin_spi: only request GPIO on first load spi/bfin_spi: handle error/status changes after data interrupts spi: enable spi_board_info to be registered after spi_master
| * spi/pl022: fix erroneous platform data in U300Linus Walleij2010-11-01
| | | | | | | | | | | | | | | | | | | | This fixes an erroneous use of LSB first in the U300 machine, the PL022 used in U300 is a standard ARM core that doesn't support this bit so it should never have been set. Cc: Kevin Wells <wellsk40@gmail.com>OA Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | Merge git://git.infradead.org/mtd-2.6Linus Torvalds2010-10-30
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (82 commits) mtd: fix build error in m25p80.c mtd: Remove redundant mutex from mtd_blkdevs.c MTD: Fix wrong check register_blkdev return value Revert "mtd: cleanup Kconfig dependencies" mtd: cfi_cmdset_0002: make sector erase command variable mtd: cfi_cmdset_0002: add CFI detection for SST 38VF640x chips mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode mtd: cfi_cmdset_0001: use defined value of P_ID_INTEL_PERFORMANCE instead of hardcoded one block2mtd: dubious assignment P4080/mtd: Fix the freescale lbc issue with 36bit mode P4080/eLBC: Make Freescale elbc interrupt common to elbc devices mtd: phram: use KBUILD_MODNAME mtd: OneNAND: S5PC110: Fix double call suspend & resume function mtd: nand: fix MTD_MODE_RAW writes jffs2: use kmemdup mtd: sm_ftl: cosmetic, use bool when possible mtd: r852: remove useless pci powerup/down from suspend/resume routines mtd: blktrans: fix a race vs kthread_stop mtd: blktrans: kill BKL mtd: allow to unload the mtdtrans module if its block devices aren't open ... Fix up trivial whitespace-introduced conflict in drivers/mtd/mtdchar.c
| * \ Merge branch 'master' of ↵David Woodhouse2010-10-30
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git Conflicts: drivers/mtd/mtd_blkdevs.c Merge Grant's device-tree bits so that we can apply the subsequent fixes. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | ARM: platform data to use the FSMC NAND with the U300Linus Walleij2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just as it says, if this is merged along with the other patch, the driver supports the U300 NAND flash interface. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | mtd: pxa3xx_nand: condense the flash definitionLei Wen2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding a new flash definition would need less code. Keep the platform passing flash definition method. If one flash is both defined in platform data and builtin table, driver would select the one from platform data first. By this way, platform could select the timing most suit for itself, not need to follow the common settings. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | | | Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2010-10-30
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (215 commits) ARM: memblock: setup lowmem mappings using memblock ARM: memblock: move meminfo into find_limits directly ARM: memblock: convert free_highpages() to use memblock ARM: move freeing of highmem pages out of mem_init() ARM: memblock: convert memory detail printing to use memblock ARM: memblock: use memblock to free memory into arm_bootmem_init() ARM: memblock: use memblock when initializing memory allocators ARM: ensure membank array is always sorted ARM: 6466/1: implement flush_icache_all for the rest of the CPUs ARM: 6464/2: fix spinlock recursion in adjust_pte() ARM: fix memblock breakage ARM: 6465/1: Fix data abort accessing proc_info from __lookup_processor_type ARM: 6460/1: ixp2000: fix type of ixp2000_timer_interrupt ARM: 6449/1: Fix for compiler warning of uninitialized variable. ARM: 6445/1: fixup TCM memory types ARM: imx: Add wake functionality to GPIO ARM: mx5: Add gpio-keys to mx51 babbage board ARM: imx: Add gpio-keys to plat-mxc mx31_3ds: Fix spi registration mx31_3ds: Fix the logic for detecting the debug board ...
| * \ \ \ Merge branch 'devel-stable' into develRussell King2010-10-28
| |\ \ \ \
| | * \ \ \ Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/genesis-2.6 into ↵Russell King2010-10-28
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devel-stable Conflicts: drivers/video/sh_mobile_hdmi.c
| | | * | | | ARM: arch-shmobile: Add IMX074 camera sensor data to the AP4EVB platformGuennadi Liakhovetski2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add platform data, necessary to use Sony IMX074 camera sensor with AP4EVB. Note: this does not work reliably without an API to reserve contiguous and coherent memory for V4L DMA buffers. Such memory reservation has to be added as soon as a suitable API becomes available. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: ap4evb: modify LCDC1 irq numberTAKEI Mitsuharu2010-10-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: TAKEI Mitsuharu <takei.andr@gmail.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: add TMU platform data for sh7372Magnus Damm2010-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the two first channels of the TMU0 timer block on sh7372. One channel is used for clock event, the other for clock source. Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: remove videomodes from ap4evb platform dataGuennadi Liakhovetski2010-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that HDMI videomodes have become optional, they can be safely removed from ap4evb platform data, since anyway 720p seems to be the best supported mode. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: clock-sh7372: FSI parent select supportKuninori Morimoto2010-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: clock-sh7372: add sh7372_ prefix to global clocksKuninori Morimoto2010-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch also registered global extal clocks to sh7372.h Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: shmobile: use device name for timer clocksMagnus Damm2010-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move SH-Mobile ARM systems over from the legacy "clk" member of struct sh_timer_config to using the device name and clkdev for clock matching. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: shmobile: make AP4EVB MMCIF resource string consistentMagnus Damm2010-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just use MMCIF as name to match the sh7372 data sheet. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: shmobile: break out sh7372 platform devicesMagnus Damm2010-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces sh7372_late_devices which should include all regular processor specific platform devices. Early platform devices for console and timers should be put on the sh7372_early_devices list, all other devices should be on sh7372_late_devices. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | arm/shmobile: remove duplicated includeNicolas Kaiser2010-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove duplicated include. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: modify wrong array size of div6_reparent_clksKuninori Morimoto2010-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: ap4evb: modify touchpanel judgment conditionKuninori Morimoto2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current touchpanel had below 2 issues - LCDD2 pin which is needed for WVGA was changed to IRQ28_123 pin on ts_get_pendown_state - GPIO pull up on ts_init was disabled by gpio_request on ts_get_pendown_state. This mean the return value from gpio_get_value is untrusted. This patch solve these issues Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: add two more video modes for HDMIGuennadi Liakhovetski2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add video modes for 480p and SXGA (1280x1024). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | fbdev: sh_mobile_lcdcfb: Support multiple video modes in platform dataGuennadi Liakhovetski2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a preparation for HDMI hotplug support. This patch just moves all platform defined video modes for the sh_mobile_lcdcfb driver to separate arrays and switches all users to use element 0 of that array, so, this patch doesn't introduce any functional changes and as such should not cause any regressions. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: sh7372: modify INTCS tableKuninori Morimoto2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add ignored device name by comment-out in INTCS. And MSIOF which has been forgotten is added Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: pfc-sh7372: modify wrong commentKuninori Morimoto2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: Use evt2irq() for sh7372 DMACMagnus Damm2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use evt2irq() for DMAC resources on sh7372. This makes the code easier to read and also allows adjusting the INTC base offset without breaking platform data. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: Extend AP4EVB LCD commentsMagnus Damm2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend dip switch comments for QHD and WVGA LCD panels on AP4EVB. Similar to the Ecovec comments. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | ARM: mach-shmobile: ap4evb: modify tsc2007 platform settingsKuninori Morimoto2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modify x_plate_ohms to correct value for tsc2007, and removed un-necessary ts_get_pendown_state(). gpio_pull_up() was removed also. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | Merge branch 'l2x0-pull-rmk' of ↵Russell King2010-10-28
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://dev.omapzoom.org/pub/scm/santosh/kernel-omap4-base into devel-stable
| | | * | | | | ARM: ux500 specific L2 cache codePer Fransson2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic version of l2x0_inv_all is only called just after disabling the L2 cache and is surrounded by a spinlock. However, we're not really turning off the L2 cache right now, and the PL310 does not support exclusive accesses (used to implement the spinlock). So, the invalidation needs to be done without the spinlock. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Hans-Juergen Koch <hjk@linutronix.de> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Per Fransson <per.xx.fransson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | ARM: l2x0: Optimise the range based operationsSantosh Shilimkar2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the big buffers which are in excess of cache size, the maintaince operations by PA are very slow. For such buffers the maintainace operations can be speeded up by using the WAY based method. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | ARM: l2x0: Determine the cache sizeSantosh Shilimkar2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cache size is needed for to optimise range based maintainance operations Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | ARM: l2x0: Fix coding-style in the cache-l2x0.hSantosh Shilimkar2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace tab with space after #define to be consisten with other define in the file. Also move the bit mask below the register offsets. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | omap4: l2x0: Override the default l2x0_disableSantosh Shilimkar2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The machine_kexec() calls outer_disable which can crash on OMAP4 becasue of trustzone restrictions. This patch overrides the default l2x0_disable with a OMAP4 specific implementation taking care of trustzone Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | arm: Implement l2x0 cache disable functionsThomas Gleixner2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add flush_all, inv_all and disable functions to the l2x0 code. These functions are called from kexec code to prevent random crashes in the new kernel. Platforms like OMAP which control L2 enable/disable via SMI mode can override the outer_cache.disable() function to implement their own. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | arm: Disable outer (L2) cache in kexecThomas Gleixner2010-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kexec does not disable the outer cache before disabling the inner caches in cpu_proc_fin(). So L2 is enabled across the kexec jump. When the new kernel enables chaches again, it randomly crashes. Disabling L2 before calling cpu_proc_fin() cures the problem. Disabling L2 requires the following new functions: flush_all(), inv_all() and disable(). Add them to outer_cache_fns and call them from the kexec code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
| | | * | | | | ARM: Improve the L2 cache performance when PL310 is usedCatalin Marinas2010-10-26
| | | | |/ / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this L2 cache controller, the cache maintenance by PA and sync operations are atomic and do not require a "wait" loop. This patch conditionally defines the cache_wait() function. Since L2x0 cache controllers do not work with ARMv7 CPUs, the patch automatically enables CACHE_PL310 when only CPU_V7 is defined. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| | * | | | | Merge branch 'for-rmk' of ↵Russell King2010-10-28
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable Conflicts: arch/arm/mach-s3c64xx/dev-audio.c
| | | * | | | | ARM: S5PV310: Support ethernet for SMDKV310 and SMDKC210Daein Moon2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds to support ethernet for SMDKV310 and SMDKC210 board. - define smc911x resources - define configurations of smc911x platform data - define platform device "smsc911x" - initialize srom controller for lan9215 chip Signed-off-by: Daein Moon <moon9124@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | | * | | | | ARM: S5PV310: Add support SROMCDaein Moon2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support SROMC for S5PV310 and S5PC210. Signed-off-by: Daein Moon <moon9124@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-13 17:33:00 -0500