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* [AVR32] Wire up i2c-gpio on the ATNGW100 boardHaavard Skinnemoen2007-08-15
| | | | | | | | The NGW100 has a board controller which is hooked up to the TWI lines on AP7000. Since the TWI driver isn't in mainline, use the i2c-gpio driver in the mean time. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] leds-gpio for stk1000David Brownell2007-08-15
| | | | | | | | | | Add GPIO led support: J2 to either block of LEDs on the STK1000. This uses the new LEDS_GPIO driver, and sets up a heartbeat trigger by default ... either bright (!!) amber, or a more interesting purple. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds2007-07-22
|\ | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: Convert from struct class_device to struct device leds: leds-gpio for ngw100 leds: Add warning printks in error paths leds: Fix trigger unregister_simple if register_simple fails leds: Use menuconfig objects II - LED leds: Teach leds-gpio to handle timer-unsafe GPIOs leds: Add generic GPIO LED driver
| * leds: leds-gpio for ngw100David Brownell2007-07-15
| | | | | | | | | | | | | | | | | | Add GPIO leds to the NGW100 platform and its defconfig. Access through /sys/class/leds/{a,b,sys}/* files; one defaults to a heartbeat. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* | mm: fault feedback #2Nick Piggin2007-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch completes Linus's wish that the fault return codes be made into bit flags, which I agree makes everything nicer. This requires requires all handle_mm_fault callers to be modified (possibly the modifications should go further and do things like fault accounting in handle_mm_fault -- however that would be for another patch). [akpm@linux-foundation.org: fix alpha build] [akpm@linux-foundation.org: fix s390 build] [akpm@linux-foundation.org: fix sparc build] [akpm@linux-foundation.org: fix sparc64 build] [akpm@linux-foundation.org: fix ia64 build] Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Matthew Wilcox <willy@debian.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ Still apparently needs some ARM and PPC loving - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [AVR32] Initialize phy_mask for both macb devicesHaavard Skinnemoen2007-07-18
| | | | | | | | | | | | | | | | | | The STK1000 uses pullups on the MDIO lines to the PHY, but they are too weak. This causes the PHY layer to detect PHYs on all possible MII addresses. Mask out all but the correct address to prevent this from happening. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Correct misspelled CONFIG_BLK_DEV_INITRD variable.Robert P. J. Day2007-07-18
| | | | | | | | | | Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Fix build error in parse_tag_rdimg()Haavard Skinnemoen2007-07-18
| | | | | | | | | | | | | | | | This code is inside an #ifdef with a misspelled config symbol, so it hasn't been used for a long time. Fix it before fixing the config symbol to keep bisection working. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Don't wire up macb0 unless SW6 is in default positionKristoffer Nyborg Gregertsen2007-07-18
| | | | | | | | | | | | If the user wants to sacrifice macb0 for more GPIOs, let him. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Wire up SSC platform device 0 as TX on ATSTK1000 boardHans-Christian Egtvedt2007-07-18
| | | | | | | | | | Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Add Atmel SSC driver platform device to AT32AP architectureHans-Christian Egtvedt2007-07-18
| | | | | | | | | | | | | | This patch adds register definitions, clocks and IRQs to the platform devices. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Make STK1000 mux settings configurableDavid Brownell2007-07-18
| | | | | | | | | | | | | | | | | | | | | | | | This adds some STK1002-specific config options covering the jumper settings, so the kernel can automatically be configured to include the relevant devices. One of them replaces the previous internal SW2_DEFAULT setting; SPI config is affected by two of the jumpers; and a fourth one switches between LCD and the second Ethernet connector. (There's more that to be done.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] CPU frequency scaling for AT32APHans-Christian Egtvedt2007-07-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables CPU frequency scaling for AT32AP devices. This will enable the CPU to scale between the speed of the high speed bus and the master clock and thus save some power. The patch also adds a parent to cpu_clk and a cpu_clk_set_rate to enable changing the CPU clock divider in a sane way. The driver does not check if the given rate is 0, thus resulting in a div by 0. I think this check should be go into the clk_set_rate framework, and not here. Tested on AT32AP7000/ATSTK1000. Hardware documentation can be found in the AT32AP7000 datasheet. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | [AVR32] Split SM device into PM, RTC, WDT and EICHaavard Skinnemoen2007-07-18
| | | | | | | | | | | | | | | | | | | | | | Split the SM platform device into separate platform devices for PM, RTC, WDT and EIC. This is more correct according to the documentation and allows us to simplify the code a little. Also turn the EIC driver into a real platform driver. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
* | PTRACE_POKEDATA consolidationAlexey Dobriyan2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata() function. AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless return EPERM. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | PTRACE_PEEKDATA consolidationAlexey Dobriyan2007-07-17
| | | | | | | | | | | | | | | | | | | | | | Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata() function. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Report that kernel is tainted if there was an OOPSPavel Emelianov2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If the kernel OOPSed or BUGed then it probably should be considered as tainted. Thus, all subsequent OOPSes and SysRq dumps will report the tainted kernel. This saves a lot of time explaining oddities in the calltraces. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ Added parisc patch from Matthew Wilson -Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | generic bug: use show_regs() instead of dump_stack()Heiko Carstens2007-07-16
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current generic bug implementation has a call to dump_stack() in case a WARN_ON(whatever) gets hit. Since report_bug(), which calls dump_stack(), gets called from an exception handler we can do better: just pass the pt_regs structure to report_bug() and pass it to show_regs() in case of a warning. This will give more debug informations like register contents, etc... In addition this avoids some pointless lines that dump_stack() emits, since it includes a stack backtrace of the exception handler which is of no interest in case of a warning. E.g. on s390 the following lines are currently always present in a stack backtrace if dump_stack() gets called from report_bug(): [<000000000001517a>] show_trace+0x92/0xe8) [<0000000000015270>] show_stack+0xa0/0xd0 [<00000000000152ce>] dump_stack+0x2e/0x3c [<0000000000195450>] report_bug+0x98/0xf8 [<0000000000016cc8>] illegal_op+0x1fc/0x21c [<00000000000227d6>] sysc_return+0x0/0x10 Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Andi Kleen <ak@suse.de> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [AVR32] Update defconfigsHaavard Skinnemoen2007-06-23
| | | | | | | | 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 Brownell2007-06-23
| | | | | | | | | | | 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.au2007-06-23
| | | | | | | | | 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 Skinnemoen2007-06-23
| | | | | | | | | | | | | 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 Skinnemoen2007-06-14
| | | | | | | | 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 Righi2007-06-14
| | | | | | | | | | 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 Ravnborg2007-05-19
| | | | | | | 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 Ravnborg2007-05-19
| | | | | | Move definition of .text section to asm-generic. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* [AVR32] Implement platform hooks for atmel_lcdfb driverHaavard Skinnemoen2007-05-15
| | | | | | | | 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 Skinnemoen2007-05-13
| | | | Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] optimize pagefault pathChristoph Hellwig2007-05-13
| | | | | | | | | 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 Skinnemoen2007-05-13
| | | | | | | | 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 Torvalds2007-05-09
|\ | | | | | | | | | | | | | | | | * '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 Skinnemoen2007-05-09
| | | | | | | | | | | | | | 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 Skinnemoen2007-05-09
| | | | | | | | | | | | | | | | | | 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 Skinnemoen2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | 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 Gleixner2007-05-09
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * [AVR32] Use correct config symbol when setting cpuflagsHaavard Skinnemoen2007-05-09
| | | | | | | | | | | | | | | | | | | | | | 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 Zippel2007-05-09
|/ | | | | | | | | 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 Dunlap2007-05-08
| | | | | | | | | | | | 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 Hellwig2007-05-08
| | | | | | | | | | | | | | | | | | | | | | | 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. Day2007-04-27
| | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | | | 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 Skinnemoen2007-04-27
| | | | Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [AVR32] Make I/O access macros work with external devicesHaavard Skinnemoen2007-04-27
| | | | | | | | | | | | | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | | | | | 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 Skinnemoen2007-04-27
| | | | | | | | | | | | | | | * 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 Skinnemoen2007-04-27
| | | | | | | | | 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>
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