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* | | Blackfin: fix miscompilation in lshrdi3Jie Zhang2009-07-161-15/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code used in the Blackfin lshrdi3 utilizes gcc constructs. However, the structures declared don't line up with the code gcc generates, so under certain optimizations, we get bad code and things crap out in fun random ways. So rather than trying to maintain different gcc definitions ourselves, just use the ones available in gcclib.h. URL: http://blackfin.uclinux.org/gf/tracker/5286 Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Blackfin: fix silent crash when no uClinux MTD filesystem existsRobin Getz2009-07-161-10/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we need to relocate the attached filesystem with the uClinux MTD map (to handle some anomalies), we need to know its real filesize. If we boot a kernel without a filesystem actually attached, we end up blindly reading and copying garbage (since there is no magic value to detect validity). Often times this results in an early crash and no output. So add a few basic sanity checks before operating on things to catch the majority of cases. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Blackfin: restore exception banner when dumping crash infoMike Frysinger2009-07-161-2/+3
| | | | | | | | | | | | | | | | | | | | | Previous unification code put the exception banner behind the "is oops" logic when it should have been printed all the time. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Blackfin: work around anomaly 05000281Robin Getz2009-07-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missing anomaly workaround for anomaly 05000281 - we can't return to instructions which cause hardware errors otherwise we trigger the error again which means we go into an infinite loop of handling, returning, and retriggering. This work around confuses gdb when the error occurs as the PC will seemed to have moved, so a better long term fix will need to be figured out, but for now this is better than an infinite crash loop. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Blackfin: update anomaly lists to match latest sheets/usageGraf Yang2009-07-167-1/+13
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Blackfin: drop dead flash_probe callMike Frysinger2009-07-161-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | There are no CONFIG_{BLK,CHR}_DEV_FLASH Kconfig options, and there is no flash_probe() function, so not really sure what this code is all about. Seems to be dead code that stretches way back to the start of the Blackfin port. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Blackfin: cleanup code a bit with comments and definesRobin Getz2009-07-161-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | Improve the assembly with a few explanatory comments and use symbolic defines rather than numeric values for bit positions. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | headers: smp_lock.h reduxAlexey Dobriyan2009-07-122-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | sched: INIT_PREEMPT_COUNTPeter Zijlstra2009-07-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull the initial preempt_count value into a single definition site. Maintainers for: alpha, ia64 and m68k, please have a look, your arch code is funny. The header magic is a bit odd, but similar to the KERNEL_DS one, CPP waits with expanding these macros until the INIT_THREAD_INFO macro itself is expanded, which is in arch/*/kernel/init_task.c where we've already included sched.h so we're good. Cc: tony.luck@intel.com Cc: rth@twiddle.net Cc: geert@linux-m68k.org Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Remove multiple KERN_ prefixes from printk formatsJoe Perches2009-07-082-37/+38
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up handling of log-levels and newlines") changed printk semantics. printk lines with multiple KERN_<level> prefixes are no longer emitted as before the patch. <level> is now included in the output on each additional use. Remove all uses of multiple KERN_<level>s in formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Blackfin: fix dma-mapping build errorsFUJITA Tomonori2009-06-221-0/+13
| | | | | | | | | | | | | | | | | | | | The recent deprecation of dma_sync_{sg,single} ironically broke Blackfin systems. This is because we don't define dma_sync_sg_for_cpu at all, so until the DMA asm-generic conversion/cleanup is done after the next release, simply stub out the dma_sync_sg_for_{cpu,device} functions. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: hook up new perf_counter_open syscallMike Frysinger2009-06-222-1/+3
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: drop BF535-specific text for exception 0x2A (unaligned instruction)Yi Li2009-06-221-3/+1
| | | | | | | | | | | | | | | | | | We don't support the BF535 at all, and the exception 0x2A text specific to it is pretty verbose and confusing (since the behavior is simply odd), so punt it to keep the noise down. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: fix early crash when booting on wrong cpuRobin Getz2009-06-221-8/+15
| | | | | | | | | | | | | | | | | | | | Make sure we process the kernel command line before poking the hardware, so that we can process early printk. This helps ensure that if you boot a kernel configured for a different processor, something will be left in the log buffer. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: fix GPTMR0_CLOCKSOURCE dependency on BFIN_GPTIMERSMike Frysinger2009-06-221-0/+1
| | | | | | | | | | | | | | | | The GPTMR0_CLOCKSOURCE Kconfig option requires the gptimers framework, so make sure it is selected when this option is enabled. Reported-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: drop unused ISP1760 port1_disable from board resourcesMike Frysinger2009-06-225-5/+0
| | | | | | | | | | | | | | The port1 disable stuff was dropped from the USB ISP1760, so update the Blackfin boards accordingly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: bf526-ezbrd: handle different SDRAM chipsGraf Yang2009-06-222-1/+92
| | | | | | | | | | | | | | | | The BF526-EZBRD changed SDRAM chips between board revisions, so create a timing table that can accommodate both. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: fix typo in TRAS define in mem_init.h headerGraf Yang2009-06-221-1/+1
| | | | | | | | | | | | | | | | We defined SDRAM_tRAS to TRAS_4, but then wrongly defined SDRAM_tRAS_num to 3. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: unify memory map headersMike Frysinger2009-06-2216-350/+145
| | | | | | | | | | | | | | | | | | | | Many aspects of the Blackfin memory map is exactly the same across all variants. Rather than copy and paste all of these duplicated values in each header, unify all of these into the common Blackfin memory map header file. In the process, push down BF561 SMP specific stuff to the BF561 specific header to keep the noise down. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: stick the CPU name into boot image nameRobin Getz2009-06-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | Rather than use "Linux" in the boot image name (as this is redundant -- the image type is already set to "linux"), use the CPU name. This makes it fairly obvious when a wrong image is accidentally booted. Otherwise there is no kernel output and you waste time scratching your head wondering wtf just happened. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: update defconfigsMike Frysinger2009-06-2220-155/+272
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: decouple unrelated cache settings to get exact behaviorJie Zhang2009-06-2211-81/+176
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current cache options don't really represent the hardware features. They end up setting different aspects of the hardware so that the end result is to turn on/off the cache. Unfortunately, when we hit cache problems with the hardware, it's difficult to test different settings to root cause the problem. The current settings also don't cleanly allow for different caching behaviors with different regions of memory. So split the configure options such that they properly reflect the settings that are applied to the hardware. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: update I-pipe patch levelPhilippe Gerum2009-06-221-2/+2
| | | | | | | | | | Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: remove obsolete mcount support from I-pipe codePhilippe Gerum2009-06-223-76/+0
| | | | | | | | | | Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipelinePhilippe Gerum2009-06-223-27/+28
| | | | | | | | | | Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: convert interrupt pipeline to irqflagsPhilippe Gerum2009-06-225-30/+177
| | | | | | | | | | Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: allow people to select BF51x-0.1 silicon revMike Frysinger2009-06-221-1/+1
| | | | | | | | | | | | Now that 0.1 of the BF51x is coming out, allow people to build for it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: bf526-ezbrd: set SPI flash resources to SST deviceGraf Yang2009-06-221-2/+2
| | | | | | | | | | | | | | The BF526-EZBRD has a SST SPI flash on it, not a ST Micro. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: fix accidental reset in some boot modesSonic Zhang2009-06-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | We read the SWRST (Software Reset) register to get at the last reset state, and then we may configure the DOUBLE_FAULT bit to control behavior when a double fault occurs. But if the lower bits of the register is already set (like UART boot mode on a BF54x), we inadvertently make the system reset by writing to the SYSTEM_RESET field at the same time. So make sure the lower 4 bits are always cleared. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: abstract irq14 lowering in do_irqMike Frysinger2009-06-221-18/+25
| | | | | | | | | | | | | | Split out the optional IRQ14 lowering code to further simplify the asm_do_IRQ() function and keep the ifdef nest under control. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: simplify irq stack overflow checkingMike Frysinger2009-06-221-15/+17
| | | | | | | | | | | | | | Take a page from x86 and abstract the stack checking out of the asm_do_IRQ() function so that the result is easier to digest. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: only build show_interrupts() when procfs is enabledMike Frysinger2009-06-221-0/+2
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: redo handling of bad irqsMike Frysinger2009-06-221-42/+11
| | | | | | | | | | | | | | | | | | | | With the common IRQ code initializing much more of the irq_desc state, we can't blindly initialize it ourselves to the local bad_irq state. If we do, we end up wrongly clobbering many fields. So punt most of the bad irq code as the common layers will handle the default state, and simply call handle_bad_irq() directly when the IRQ we are processing is invalid. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: update anomaly listsMike Frysinger2009-06-227-125/+178
| | | | | | | | | | | | Update anomaly headers to match latest released anomaly sheets. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: bf533-ezkit: add resources for FISP devicesMike Frysinger2009-06-221-0/+106
| | | | | | | | | | | | | | | | The BF533-EZKIT has two Flash In-System Programming devices hooked up to the async memory bus, so add resources for the primary flashes and the SRAMs on the devices. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: bf518f-ezbrd: update DSA resourcesMike Frysinger2009-06-221-5/+11
| | | | | | | | | | | | | | The common DSA code changed structure layout, so update the BF518F-EZBRD resources accordingly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: unify memory region checks between kgdb and trapsMike Frysinger2009-06-224-274/+256
|/ | | | | | | | | The kgdb (in multiple places) and traps code developed pretty much identical checks for how to access different regions of the Blackfin memory map, but each wasn't 100%, so unify them to avoid duplication, bitrot, and bugs with edge cases. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert page/tlb to asm-genericMike Frysinger2009-06-184-157/+4
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert types to asm-genericMike Frysinger2009-06-182-81/+12
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert irq/process to asm-genericMike Frysinger2009-06-184-75/+30
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert signal/mmap to asm-genericMike Frysinger2009-06-182-199/+4
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert locking primitives to asm-genericMike Frysinger2009-06-186-308/+25
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert termios to asm-genericMike Frysinger2009-06-182-292/+2
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert simple headers to asm-genericMike Frysinger2009-06-1820-170/+10
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert socket/poll to asm-genericMike Frysinger2009-06-183-90/+5
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert user/elf to asm-genericMike Frysinger2009-06-182-90/+2
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert shm/sysv/ipc to asm-genericMike Frysinger2009-06-185-134/+5
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert asm/ioctls.h to asm-generic/ioctls.hMike Frysinger2009-06-181-82/+2
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: only build irqpanic.c when neededMike Frysinger2009-06-182-10/+4
| | | | | | | | The irq_panic function is only used when CONFIG_DEBUG_ICACHE_CHECK is enabled, so move the conditional build to the Makefile rather than wrapping all of the contents of the file. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: pull in asm/io.h in ksyms for prototypesMike Frysinger2009-06-181-0/+1
| | | | | | | Make sure we pull in asm/io.h when exporting symbols for the I/O functions so we don't end up with a build failure due to missing prototypes. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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