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* [ARM] 3143/1: OMAP 4/5: Update omap include filesTony Lindgren2005-11-10
| | | | | | | | | | | | | Patch from Tony Lindgren This patch syncs the mainline kernel with linux-omap tree. This patch contains changes to common header files for omap1xxx and omap24xx by various omap developers, and improved cpu detection by Imre Deak Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3140/1: NSLU2 machine supportAlessandro Zummo2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Alessandro Zummo This patch adds support for the LinkSys NSLU2 running with both big and little-endian kernels. The LinkSys NSLU2 is a cost engineered ARM, XScale 420 based system similar to the the Intel IXDP425 evaluation board. It uses the IXP4XX ARCH. While this patch applies independently of other patches the resultant kernel requires further patches to successfully use onboard devices, including the onboard flash. Since these patches are independent of this one they will be submitted separately. A defconfig is not included here because not all of the required drivers are actually in the kernel. We intend to provide one as soon as the patches will be incorporated in mainstream. This patch is the combined work of nslu2-linux.org Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3057/1: Add memory control method to support OneNAND sync burst readKyungmin Park2005-11-09
| | | | | | | | | Patch from Kyungmin Park This patch is required for OneNAND MTD to passing the OneNAND sync. burst read Signed-off-by: Kyungmin Park Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Clean up save_and_disable_irqs macro and allow use of ARMv6 CPSIDRussell King2005-11-09
| | | | | | | | | save_and_disable_irqs does not need to use mov + msr (which was introduced to work around a documentation bug which was propagated into binutils.) Use msr with an immediate constant, and if we're building for ARMv6 or later, use the new CPSID instruction. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge with ARM SMP treeRussell King2005-11-09
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| * [ARM SMP] Add local timer support for Realview MPcoreRussell King2005-11-09
| | | | | | | | | | | | | | Add platform specific parts for local timer support for the Realview board. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge with ARM SMP treeRussell King2005-11-08
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| * [ARM SMP] Add core ARM support for local timersRussell King2005-11-08
| | | | | | | | | | | | | | Add infrastructure for supporting per-cpu local timers to update the profiling information and update system time accounting. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 3132/1: S3C2410 - reset on decompression errorBen Dooks2005-11-08
| | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Force a watchdog reset if the system fails to decompress properly. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 3093/1: SharpSL PCMCIA Updates for Cxx00 modelsRichard Purdie2005-11-08
|/ | | | | | | | | | | | | | | | Patch from Richard Purdie The Sharp SL-Cxx00 models have a combined power control for the SD and CF slot 0. This patch adds hooks to the scoop driver to allow machines to provide a custom control function for this and such a function is added for spitz/akita/borzoi. It also moves the gpio init code into the machine files as this is machine dependent and differs between some models. A couple of warnings when compiling for collie are also fixed. Signed-off-by: Richard Purdie Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Declare asm entry points in asm/smp.hRussell King2005-11-08
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Add missing SMP timer handling for realviewRussell King2005-11-08
| | | | | | | | Until we have local timer support, we need to broadcast the timer interrupt to the other CPUs. Also, add the missing smp_send_timer() prototype to asm/smp.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Add Realview MPcore SMP supportRussell King2005-11-07
| | | | | | | Add SMP support for the MPcore tile fitted to the Realview ARM platform. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Add support for Realview with MPcore tileRussell King2005-11-07
| | | | | | | Add uniprocessor support for Realview platform fitted with the MPcore (SMP) tile. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix second missing declaration of cache_is_vivt()Russell King2005-11-06
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix another use of // as a commentRussell King2005-11-06
| | | | | | // disagrees with ld's script parsing ability. Don't use it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3113/1: PXA: Allow machines to override (and also reuse) pxa pm functionsRichard Purdie2005-11-06
| | | | | | | | | | | | | | Patch from Richard Purdie Update the PXA pm.c file to allow machines (such as the Sharp Zaurus) to override the standard pm functions but reuse/wrap them where needed. The init call is made slightly earlier to give machine code an init level to override them in removing any race. Signed-off-by: Richard Purdie Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3088/1: PXA: Add machine support for the Sharp SL-6000x series of PDAsDirk Opfer2005-11-06
| | | | | | | | | | Patch from Dirk Opfer This patch adds basic machine support for the Sharp SL-6000x (Tosa) PDAs. Signed-off-by: Dirk Opfer Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Reverted 2918/1: [update] Base port of Comdial MP1000 platfromRussell King2005-11-04
| | | | No longer maintained
* [ARM] 3086/1: ixp2xxx error irq handlingDave Jiang2005-11-04
| | | | | | | | | | | | Patch from Dave Jiang This provides support for IXP2xxx error interrupt handling. Previously there was a patch to remove this (although the original stuff was broken). Well, now the error bits are needed again. These are used extensively by the micro-engine drivers according to Deepak and also we will need it for the new EDAC code that Alan Cox is trying to push into the main kernel. Re-submit of 3072/1, generated against git tree pulled today. AFAICT, this git tree pulled in all the ARM changes that's in arm.diff. Please let me know if there are additional changes. Thx! Signed-off-by: Dave Jiang <djiang@mvista.com> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Merge SMP treeRussell King2005-11-03
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| * [ARM SMP] Do not clear cpu_vm_mask for VIPT cachesRussell King2005-11-03
| | | | | | | | | | | | | | Since we do not invalidate TLBs/caches on MM switches, we should not clear the cpu_vm_mask for the CPU. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] Fix another build error with IOP3xx platformsRussell King2005-11-03
|/ | | | | | ld doesn't like comments starting with // in its scripts Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Add hotplug CPU infrastructureRussell King2005-11-02
| | | | | | | This patch adds the infrastructure to support hotplug CPU on ARM platforms. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Track CPU idle threadsRussell King2005-11-02
| | | | | | Track the idle thread task_struct for each CPU. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix ARM rwlock implementationsRussell King2005-11-02
| | | | | | | fb1c8f93d869b34cacb8b8932e2b83d96a19d720 broke the ARM rwlock code since it only partially updated the rwlock implementation. Properly update it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3083/1: include/asm-arm/arch-ixp4xx/io.h: eliminate warnings for ↵John Bowler2005-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | pointer passed to integral function argument Patch from John Bowler Fix for a compiler warning, this wasn't apparent in 2.6.12, I believe the compiler options have been changed (somewhere) so that passing a (void*) to a (u32) argument is now warned. This accounts for the majority of the warnings in my builds of the 2.6.14 kernel for NSLU2. The patch changes pointer parameters declared as u32 to be declared as either, for read parameters: const volatile void __iomem * and for write parameters: volatile void __iomem * Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix realview machine type for patch 3060/1Russell King2005-11-02
| | | | | | Realview was missed in this cleanup... Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3052/1: add ixp2000 microcode loaderLennert Buytenhek2005-11-01
| | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek This patch adds a microcode loader for the ixp2000 architecture. The ixp2000 is an xscale-based CPU with a number of additional small CPUs ('microengines') on die that can be programmed to do various things. Depending on the ixp2000 model, there are between 2 and 16 microengines. This code provides an API that allows configuring the microengines, loading code into them, and starting and stopping them and reading out a number of status registers, and is used by the microengine network driver that was recently announced to netdev. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3077/1: S3C2410 - regs-iis.h missing mask for IISMOD_FSBen Dooks2005-11-01
| | | | | | | | | Patch from Ben Dooks Add definition for S3C2410_IISMOD_FS_MASK Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3065/1: ixp2000 typo and whitespace fixesLennert Buytenhek2005-11-01
| | | | | | | | | | Patch from Lennert Buytenhek Misc ixp2000 typo and whitespace fixes. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3064/1: start using ixp2000_reg_wrbLennert Buytenhek2005-11-01
| | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Switch the users of ixp2000_reg_write that depend on writes being flushed out of the write buffer by the time that function returns over to ixp2000_reg_wrb. When using XCB=101, writes to the same functional unit are still guaranteed to complete in order, so we only need to protect against: - reordering of writes to different functional units - masking an interrupt and then reenabling the IRQ bit in CPSR Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3063/1: allow slave ixp2000 cpu resetLennert Buytenhek2005-11-01
| | | | | | | | | | | | | | | Patch from Lennert Buytenhek On the ixdp2x00, the slave CPU is currently not allowed to reset itself for fear that it will do something 'funky' on the PCI bus. This fear is ungrounded -- the slave CPU is wired up such that a CPU reset will not cause a PCI bus reset to be done. This patch changes arch_reset() so that the slave CPU also executes the reset sequence, allowing it to reboot itself using /sbin/reboot. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3062/1: map in various enp2611 peripherals for the ixp2000 netdev driverLennert Buytenhek2005-11-01
| | | | | | | | | | | | | | | Patch from Lennert Buytenhek The enp2611 version of the ixp2000 netdev driver needs to be able to access a number of on-board peripherals. ioremap() is not suitable for this, as that will cause XCB=000 mappings to be done, which will make the cpu susceptible to crashing on ixp2400 erratum #66. Properly aligned iotable mappings with MT_IXP2000_DEVICE will cause section mappings with XCB=101 to be done, which is safe. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Add support for ARM RealView boardCatalin Marinas2005-10-31
| | | | | | | Support for RealView EB. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-10-30
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| * [ARM] arch-ixp4xx/io.h: make const args const to remove compiler warningJohn Bowler2005-10-30
| | | | | | | | | | | | | | | | | | Compiler warning fix; the inline callers of these APIs were changed to have const vaddr parameters. Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] fix bogus cast in IXP2000 I/O macroDeepak Saxena2005-10-30
| | | | | | | | | | | | | | | | | | Physical addresses are not valid pointers of any sort and should not be cast to such. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] semaphore: Remove __MUTEX_INITIALIZER()Arthur Othieno2005-10-30
| | | | | | | | | | | | | | | | | | __MUTEX_INITIALIZER() has no users, and equates to the more commonly used DECLARE_MUTEX(), thus making it pretty much redundant. Remove it for good. Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] vm: remove unused/broken page_pte[_prot] macrosTejun Heo2005-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes page_pte_prot and page_pte macros from all architectures. Some architectures define both, some only page_pte (broken) and others none. These macros are not used anywhere. page_pte_prot(page, prot) is identical to mk_pte(page, prot) and page_pte(page) is identical to page_pte_prot(page, __pgprot(0)). * The following architectures define both page_pte_prot and page_pte arm, arm26, ia64, sh64, sparc, sparc64 * The following architectures define only page_pte (broken) frv, i386, m32r, mips, sh, x86-64 * All other architectures define neither Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] unify sys_ptrace prototypeChristoph Hellwig2005-10-30
|/ | | | | | | | | | Make sure we always return, as all syscalls should. Also move the common prototype to <linux/syscalls.h> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: tlb_finish_mmu forget rssHugh Dickins2005-10-30
| | | | | | | | | | | | | | | | | | | | | | | | zap_pte_range has been counting the pages it frees in tlb->freed, then tlb_finish_mmu has used that to update the mm's rss. That got stranger when I added anon_rss, yet updated it by a different route; and stranger when rss and anon_rss became mm_counters with special access macros. And it would no longer be viable if we're relying on page_table_lock to stabilize the mm_counter, but calling tlb_finish_mmu outside that lock. Remove the mmu_gather's freed field, let tlb_finish_mmu stick to its own business, just decrement the rss mm_counter in zap_pte_range (yes, there was some point to batching the update, and a subsequent patch restores that). And forget the anal paranoia of first reading the counter to avoid going negative - if rss does go negative, just fix that bug. Remove the mmu_gather's flushes and avoided_flushes from arm and arm26: no use was being made of them. But arm26 alone was actually using the freed, in the way some others use need_flush: give it a need_flush. arm26 seems to prefer spaces to tabs here: respect that. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: tlb_is_full_mm was obscureHugh Dickins2005-10-30
| | | | | | | | | | | | | | | | tlb_is_full_mm? What does that mean? The TLB is full? No, it means that the mm's last user has gone and the whole mm is being torn down. And it's an inline function because sparc64 uses a different (slightly better) "tlb_frozen" name for the flag others call "fullmm". And now the ptep_get_and_clear_full macro used in zap_pte_range refers directly to tlb->fullmm, which would be wrong for sparc64. Rather than correct that, I'd prefer to scrap tlb_is_full_mm altogether, and change sparc64 to just use the same poor name as everyone else - is that okay? Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: tlb_gather_mmu get_cpu_varHugh Dickins2005-10-30
| | | | | | | | | | | | | tlb_gather_mmu dates from before kernel preemption was allowed, and uses smp_processor_id or __get_cpu_var to find its per-cpu mmu_gather. That works because it's currently only called after getting page_table_lock, which is not dropped until after the matching tlb_finish_mmu. But don't rely on that, it will soon change: now disable preemption internally by proper get_cpu_var in tlb_gather_mmu, put_cpu_var in tlb_finish_mmu. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3061/1: cleanup the XIP link address messNicolas Pitre2005-10-29
| | | | | | | | | | | | | | | Patch from Nicolas Pitre Since vmlinux.lds.S is preprocessed, we can use the defines already present in asm/memory.h (allowed by patch #3060) for the XIP kernel link address instead of relying on a duplicated Makefile hardcoded value, and also get rid of its dependency on awk to handle it at the same time. While at it let's clean XIP stuff even further and make things clearer in head.S with a nice code reduction. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3060/1: allow constants found in asm/memory.h to be used in asm codeNicolas Pitre2005-10-29
| | | | | | | | | | | | Patch from Nicolas Pitre This patch allows for assorted type of cleanups by letting assembly code use the same set of defines for constant values and avoid duplicated definitions that might not always be in sync, or that might simply be confusing due to the different names for the same thing. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3022/1: Missing peripheral devices memory mapping definition for ↵Kenneth Tan2005-10-29
| | | | | | | | | | | | | | | | IXP46X processor Patch from Kenneth Tan Defining IXP46X peripheral devices memory mapping definitions that have been missed out: o Peripheral virtual base address is being adjusted to allow more headroom to add extra peripheral device addresses o Peripheral size is being increased to address the above needs o Virtual address of expansion bus and PCI configuration register needs to be adjusted as new peripheral device memory space is overlapping with their virtual address space Signed-off-by: Kenneth Tan <chong.yin.tan@intel.com> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3053/1: introduce ixp2000_reg_wrb (ixp2000_reg_write plus readback)Lennert Buytenhek2005-10-29
| | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Introduce ixp2000_reg_wrb, which is a variant of ixp2000_reg_write that does a readback from the target register, to make sure that the write has been flushed out of the write buffer. Unlike the previous (ineffective) readback in ixp2000_reg_write, this readback is followed by an instruction that depends on the value of the readback so that the CPU actually stalls until the readback has completed. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3051/1: turn ixp2000_reg_read into an inline functionLennert Buytenhek2005-10-29
| | | | | | | | | | Patch from Lennert Buytenhek Turn ixp2000_reg_read into an inline function. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3050/1: remove ixp2000_reg_write erratum #66 workaroundLennert Buytenhek2005-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek The workaround that we do for avoiding triggering ixp2400 erratum #66 involves mapping I/O pages using XCB=101 instead of XCB=000 so that we prevent the I/O signal to the gasket from being asserted (which can cause data corruption.) But XCB=101 mappings are write-buffered while mappings using XCB=000 are not, which is why if we use XCB=101 mappings we do a readback for every CSR store in an attempt to make sure that the store has been pushed out of the xscale core and the gasket. Unfortunately, there are two issues with this: - we do a readback for every CSR store, which is wrong, because the register we are writing to might have unwanted side-effects on read, for example, in the case of the scratchpad ring enqueue/dequeue registers; and - the readback is totally ineffective in the way we currently do it, because we just issue a load but do not issue any instruction that depends on the return value of that load, so the xscale core does not wait for the load to complete before continuing. See this linux-arm-kernel mailing list post for further information: http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2005-September/031314.html This means that my ixp2400 boxes have been running for many months without a working readback in ixp2000_reg_write, without any apparent adverse effects. Two of them have been running for a week now with the actual readback deleted from ixp2000_reg_write, also without any apparent ill effects. So, because in its current form it does more harm than good, the readback in ixp2000_reg_write should simply be killed, as the patch below does. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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