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* [AVR32] Update defconfigsHaavard Skinnemoen2007-06-232-213/+119
| | | | | | | | Update defconfigs for ATNGW100 and ATSTK1002. This will enable the SLUB allocator by default on both, and will enable NFS root on ATSTK1002 (ATNGW100 had it enabled before.) Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Initialize dma_mask and dma_coherent_maskDavid Brownell2007-06-231-0/+12
| | | | | | | | | | | The current at32ap7000 platform devices aren't declared as supporting DMA, so that layered drivers can't tell whether they need to manage DMA. This patch makes all those platform devices report that they support DMA. Most do, but in a few cases this is inappropriate. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] NGW100, Remove relics of the old USART mapping schemeben.nizette@iinet.net.au2007-06-231-3/+0
| | | | | | | | | USART mapping used to be accomplished by the manual filling of at32_usart_map[] and at32_nr_usarts. This has now been replaced with at32_map_usart() so we can remove these variables. Signed-off-by: Ben Nizette <ben.nizette@iinet.net.au> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Fix bug in invalidate_dcache_region()Haavard Skinnemoen2007-06-231-9/+5
| | | | | | | | | | | | | If (start + size) is not cacheline aligned and (start & mask) > (end & mask), the last but one cacheline won't be invalidated as it should. Fix this by rounding `end' down to the nearest cacheline boundary if it gets adjusted due to misalignment. Also flush the write buffer unconditionally -- if the dcache wrote back a line just before we invalidated it, the dirty data may be sitting in the write buffer waiting to corrupt our buffer later. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] STK1000: Set SPI_MODE_3 in the ltv350qv board infoHaavard Skinnemoen2007-06-141-0/+1
| | | | | | | | In the latest incarnation of the ltv350qv driver the call to spi_setup() has been removed. So we need to initialize things more carefully in the board info struct. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] ratelimit segfault reporting rateAndrea Righi2007-06-141-1/+1
| | | | | | | | | | Limit the rate of the kernel logging for the segfaults of user applications, to avoid potential message floods or denial-of-service attacks. Signed-off-by: Andrea Righi <a.righi@cineca.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* all-archs: consolidate .data section definition in asm-genericSam Ravnborg2007-05-191-1/+1
| | | | | | | With this consolidation we can now modify the .data section definition in one spot for all archs. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* all-archs: consolidate .text section definition in asm-genericSam Ravnborg2007-05-191-1/+1
| | | | | | Move definition of .text section to asm-generic. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* [AVR32] Implement platform hooks for atmel_lcdfb driverHaavard Skinnemoen2007-05-154-23/+124
| | | | | | | | This modifies and extends the existing lcdc platform code to support the new atmel_lcdfb driver. The ATSTK1000 board code is set up to use the on-board Samsung LTV350QV LCD panel. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Wire up signalfd, timerfd and eventfdHaavard Skinnemoen2007-05-131-0/+3
| | | | Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] optimize pagefault pathChristoph Hellwig2007-05-132-30/+13
| | | | | | | | | Avoid the costly notifier list in the pagefault path and call the kprobes code directly. The same change went into the 2.6.22 cycle for powerpc, 2s390 and sparc64 already. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Remove bogus comment in arch/avr32/kernel/irq.cHaavard Skinnemoen2007-05-131-9/+0
| | | | | | | | The comment at the top of arch/avr32/kernel/irq.c doesn't really make sense anymore since most of the actual interrupt handling code is elsewhere. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32Linus Torvalds2007-05-096-8/+13
|\ | | | | | | | | | | | | | | | | * 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32: [AVR32] Wire up sys_utimensat [AVR32] Fix section mismatch .taglist -> .init.text [AVR32] Implement dma_{alloc,free}_writecombine() AVR32: Spinlock initializer cleanup [AVR32] Use correct config symbol when setting cpuflags
| * [AVR32] Wire up sys_utimensatHaavard Skinnemoen2007-05-091-0/+1
| | | | | | | | | | | | | | Tested with a slightly hacked version of the test case included with the original utimensat patch. All OK. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * [AVR32] Fix section mismatch .taglist -> .init.textHaavard Skinnemoen2007-05-091-1/+1
| | | | | | | | | | | | | | | | | | Rename .taglist to .taglist.init to silence section mismatch warnings. The .taglist.init section was already placed in the .init output section along with .init.text, so the warning didn't indicate any real problems. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * [AVR32] Implement dma_{alloc,free}_writecombine()Haavard Skinnemoen2007-05-091-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | Implement dma_alloc_writecombine() and its dma_free_writecombine() counterpart. These will do basically the same thing as dma_alloc_coherent() except that the virtual mapping will allow write buffering, causing better performance for certain use cases like frame buffers. The same API is already available on ARM. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * AVR32: Spinlock initializer cleanupThomas Gleixner2007-05-092-2/+2
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * [AVR32] Use correct config symbol when setting cpuflagsHaavard Skinnemoen2007-05-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | As Robert P. J. Day pointed out, the CONFIG_CPU_AT32AP7000 symbol wasn't used for anything. It should have been used to select the correct -mcpu= options for CFLAGS. -mcpu=ap7000 is the default anyway, so this patch shouldn't really make any difference, but it's always nice to do things correctly. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | wrap access to thread_infoRoman Zippel2007-05-092-4/+4
|/ | | | | | | | | Recently a few direct accesses to the thread_info in the task structure snuck back, so this wraps them with the appropriate wrapper. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-081-1/+0
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* move die notifier handling to common codeChristoph Hellwig2007-05-084-18/+4
| | | | | | | | | | | | | | | | | | | | | | | This patch moves the die notifier handling to common code. Previous various architectures had exactly the same code for it. Note that the new code is compiled unconditionally, this should be understood as an appel to the other architecture maintainer to implement support for it aswell (aka sprinkling a notify_die or two in the proper place) arm had a notifiy_die that did something totally different, I renamed it to arm_notify_die as part of the patch and made it static to the file it's declared and used at. avr32 used to pass slightly less information through this interface and I brought it into line with the other architectures. [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix vmalloc_sync_all bustage] [bryan.wu@analog.com: fix vmalloc_sync_all in nommu] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* AVR32: Remove useless config option "GENERIC_BUST_SPINLOCK".Robert P. J. Day2007-04-271-3/+0
| | | | | | | | Remove the clearly useless config option GENERIC_BUST_SPINLOCK, which is not used anywhere in the tree. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Optimize the TLB miss handlerHaavard Skinnemoen2007-04-271-30/+24
| | | | | | | | | | | Reorder some instructions and change the register usage to reduce the number of pipeline stalls. Also use the bfextu and bfins instructions for bitfield manipulations instead of shifting and masking. This makes gzipping a 80MB file approximately 2% faster. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Board code for ATNGW100Haavard Skinnemoen2007-04-276-0/+1309
| | | | | | | | | Add board code and defconfig for the ATNGW100 Network Gateway kit. For more information about this board, see http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4102 Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Get rid of board_setup_fbmem()Haavard Skinnemoen2007-04-273-36/+5
| | | | | | | | | Since the core setup code takes care of both allocation and reservation of framebuffer memory, there's no need for this board- specific hook anymore. Replace it with two global variables, fbmem_start and fbmem_size, which can be used directly. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Reserve framebuffer memory in early_parse_fbmem()Haavard Skinnemoen2007-04-271-7/+61
| | | | | | | | | | | | | | With the current strategy of using the bootmem allocator to allocate or reserve framebuffer memory, there's a slight chance that the requested area has been taken by the boot allocator bitmap before we get around to reserving it. By inserting the framebuffer region as a reserved region as early as possible, we improve our chances for success and we make the region visible as a reserved region in dmesg and /proc/iomem without any extra work. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Simplify early handling of memory regionsHaavard Skinnemoen2007-04-271-263/+232
| | | | | | | | | | | Use struct resource to specify both physical memory regions and reserved regions and push everything into the same framework, including kernel code/data and initrd memory. This allows us to get rid of many special cases in the bootmem initialization and will also make it easier to implement more robust handling of framebuffer memory later. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Move setup_bootmem() from mm/init.c to kernel/setup.cHaavard Skinnemoen2007-04-272-238/+238
| | | | Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Make I/O access macros work with external devicesHaavard Skinnemoen2007-04-271-1/+25
| | | | | | | | | | | | | | | | | | | Fix the I/O access macros so that they work with externally connected devices accessed in little-endian mode over any bus width: * Use a set of macros to define I/O port- and memory operations borrowed from MIPS. * Allow subarchitecture to specify address- and data-mangling * Implement at32ap-specific port mangling (with build-time configurable bus width. Only one bus width at a time supported for now.) * Rewrite iowriteN and friends to use write[bwl] and friends (not the __raw counterparts.) This has been tested using pata_pcmcia to access a CompactFlash card connected to the EBI (16-bit bus width.) Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Fix NMI handlerHaavard Skinnemoen2007-04-271-3/+25
| | | | | | | | | | | | | Fix a problem with the NMI handler entry code related to the NMI handler sharing some code with the exception handlers. This is not a good idea because the RSR and RAR registers are not the same, and the NMI handler runs with interrupts masked the whole time so there's no need to check for pending work. Open-code the low-level NMI handling logic instead so that the pt_regs layout is actually correct when the higher-level handler is called. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Clean up exception handling codeHaavard Skinnemoen2007-04-276-393/+357
| | | | | | | | | | | | | | | * Use generic BUG() handling * Remove some useless debug statements * Use a common function _exception() to send signals or oops when an exception can't be handled. This makes sure init doesn't enter an infinite exception loop as well. Borrowed from powerpc. * Add some basic exception tracing support to the page fault code. * Rework dump_stack(), show_regs() and friends and move everything into process.c * Print information about configuration options and chip type when oopsing Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Clean up cpu identification and add features bitmapHaavard Skinnemoen2007-04-271-20/+44
| | | | | | | | | Clean up the cpu identification code, using definitions from <asm/sysreg.h> instead of hardcoded constants. Also, add a features bitmap to struct avr32_cpuinfo to allow other code to make decisions based upon what the running cpu is actually capable of. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Don't enable clocks with no usersHaavard Skinnemoen2007-04-272-1/+14
| | | | | | | | | Bring the code that sets the initial PM clock masks in line with the comment preceding it by only enabling clocks that have users != 0. Fix SM clock definition and avr32_hpt_init() so that the SM and TC0 clocks keep ticking. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Put cpu in sleep 0 when idle.Hans-Christian Egtvedt2007-04-272-7/+40
| | | | | | | | | This patch puts the CPU in sleep 0 when doing nothing, idle. This will turn of the CPU clock and thus save power. The CPU is waken again when an interrupt occurs. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Change system timer from count-compare to Timer/Counter 0Hans-Christian Egtvedt2007-04-274-73/+313
| | | | | | | | | | | | | | | | | | | | Due to limitation of the count-compare system timer (not able to count when CPU is in sleep), the system timer had to be changed to use a peripheral timer/counter. The old COUNT-COMPARE code is still present in time.c as weak functions. The new timer is added to the architecture directory. This patch sets up TC0 as system timer The new timer has been tested on AT32AP7000/ATSTK1000 at 100 Hz, 250 Hz, 300 Hz and 1000 Hz. For more details about the timer/counter see the datasheet for AT32AP700x available at http://www.atmel.com/dyn/products/product_card.asp?part_id=3903 Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Add mach-specific KconfigHaavard Skinnemoen2007-04-272-0/+9
| | | | | | | | Include at32ap-specific Kconfig file from top-level Kconfig file. The at32ap Kconfig is currently empty, but it will grow some machine- specific options soon. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Add nwait and tdf parameters to SMC configurationHans-Christian Egtvedt2007-04-271-0/+23
| | | | | | | | Complete the SMC configuration code by adding nwait and tdf parameter. After this change, we support the same parameters as the hardware. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Add basic HMATRIX supportHaavard Skinnemoen2007-04-272-0/+220
| | | | | | | | This adds register and clock definitions for the High-speed bus Matrix (HMATRIX) as well as a function that can be used to configure special EBI functionality like CompactFlash and NAND flash support. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [PATCH] gpio_direction_output() needs an initial valueDavid Brownell2007-03-171-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | It's been pointed out that output GPIOs should have an initial value, to avoid signal glitching ... among other things, it can be some time before a driver is ready. This patch corrects that oversight, fixing - documentation - platforms supporting the GPIO interface - users of that call (just one for now, others are pending) There's only one user of this call for now since most platforms are still using non-generic GPIO setup code, which in most cases already couples the initial value with its "set output mode" request. Note that most platforms are clear about the hardware letting the output value be set before the pin direction is changed, but the s3c241x docs are vague on that topic ... so those chips might not avoid the glitches. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Andrew Victor <andrew@sanpeople.com> Acked-by: Milan Svoboda <msvoboda@ra.rockwell.com> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [AVR32] Don't use kmap() in flush_icache_page()Haavard Skinnemoen2007-03-071-2/+1
| | | | | | | flush_icache_page() can be called from atomic context, so we can't use kmap(). Use page_address() instead. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Fix bogus ti->flags manipulation in debug handlerHaavard Skinnemoen2007-03-071-2/+2
| | | | | | | | | | We should OR in a bitmask, not a bit offset, into ti->flags. This might fix some strange behaviour when single stepping. Also, use set_ti_thread_flag() to manipulate the flags to avoid surprises in the future. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] show_trace: Only walk valid stack addressesHaavard Skinnemoen2007-03-071-23/+29
| | | | | | | | | | | | Terminate the frame pointer walk if (a) the address is outside the task's kernel stack or (b) if the frame pointer isn't monotonically increasing. Without this fix, show_trace() may enter an infinite loop, walking through random data anywhere in memory. Since any address within the kernel stack is guaranteed to be valid, we may eliminate the __get_user() calls as well. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] at32_spi_setup_slaves should be __initHaavard Skinnemoen2007-03-071-1/+1
| | | | Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [PATCH] add CONFIG_GENERIC_GPIODavid Brownell2007-03-051-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Most drivers using GPIOs already know they are running on a system that supports the generic GPIO calls, because of other platform dependencies. But the generic GPIO-based LED and input button drivers can't know that. So this patch adds a Kconfig hook, GENERIC_GPIO, to mark the platforms where <asm/gpio.h> will do the right thing. Currently that's a bunch of ARMs, and AVR32; more are on the way. It also fixes a dependency bug for the gpio button input driver; it was wrong to start with, now it covers all platforms with GENERIC_GPIO. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Richard Purdie <rpurdie@rpsys.net> Cc: Arnaud Patard <arnaud.patard@rtp-net.org> Cc: <raph@8d.com> Cc: <msvoboda@ra.rockwell.com> Cc: pHilipp Zabel <philipp.zabel@gmail.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-02-192-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (117 commits) [ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports [ARM] 4140/1: AACI stability add ac97 timeout and retries [ARM] 4139/1: AACI record support [ARM] 4138/1: AACI: multiple channel support for IRQ handling [ARM] 4211/1: Provide a defconfig for ns9xxx [ARM] 4210/1: base for new machine type "NetSilicon NS9360" [ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM [ARM] 4221/1: S3C2443: DMA support [ARM] 4220/1: S3C24XX: DMA system initialised from sysdev [ARM] 4219/1: S3C2443: DMA source definitions [ARM] 4218/1: S3C2412: fix CONFIG_CPU_S3C2412_ONLY wrt to S3C2443 [ARM] 4217/1: S3C24XX: remove the dma channel show at startup [ARM] 4090/2: avoid clash between PXA and SA1111 defines [ARM] 4216/1: add .gitignore entries for ARM specific files [ARM] 4214/2: S3C2410: Add Armzone QT2410 [ARM] 4215/1: s3c2410 usb device: per-platform vbus_draw [ARM] 4213/1: S3C2410 - Update definition of ADCTSC_XY_PST [ARM] 4098/1: ARM: rtc_lock only used with rtc_cmos [ARM] 4137/1: Add kexec support [ARM] 4201/1: SMP barriers pair needed for the secondary boot process ... Fix up conflict due to typedef removal in sound/arm/aaci.h
| * [ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directoriesAndrew Victor2007-02-082-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that Linux includes support for the Atmel AT91SAM9260 and AT91SAM9261 processors in addition to the original Atmel AT91RM9200 (with support for more AT91 processors pending), the "mach-at91rm9200" and "arch-at91rm9200" directories should be renamed to indicate their more generic nature. The following git commands should be run BEFORE applying this patch: git-mv arch/arm/mach-at91rm9200 arch/arm/mach-at91 git-mv include/asm-arm/arch-at91rm9200 include/asm-arm/arch-at91 Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32Linus Torvalds2007-02-164-49/+132
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32: [AVR32] Use per-controller spi_board_info structures [AVR32] Warn, don't BUG if clk_disable is called too many times [AVR32] Make sure all genclocks have a parent [AVR32] Remove unnecessary sys_nfsservctl conditional [AVR32] Wire up the SysV IPC calls properly [AVR32] Define ioremap_nocache, ioport_map and ioport_unmap [AVR32] Fix prototypes for __raw_writesb and friends
| * | [AVR32] Use per-controller spi_board_info structuresHaavard Skinnemoen2007-02-162-23/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set up one spi_board_info array per controller and pass this to at32_add_device_spi so that it can set up any GPIO pins for chip selects based on this information. Extracted from a patch by David Brownell and adapted slightly. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * | [AVR32] Warn, don't BUG if clk_disable is called too many timesHaavard Skinnemoen2007-02-161-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | Print a helpful warning along with a stack dump if clk_disable is called on a already-disabled clock. Remove the BUG_ON(). Extracted from a patch by David Brownell. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * | [AVR32] Make sure all genclocks have a parentHaavard Skinnemoen2007-02-161-16/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the parent field of each generic clock by looking at the PM registers. This means that the genclock operations can always assume that the parent field is non-null, so they don't have to check. Also remove a few unnecessary BUG_ON()s. Extracted from a patch by David Brownell. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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