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2009-06-12Blackfin: fix sparseirq/kstat_irqs falloutMike Frysinger
The sparseirq changes (d7e51e66) played poorly with the Blackfin irqchip implementation as we're still using the old hardirq method. Our bad irq structure had a NULL kstat_irqs field so when all the common code tries to increment this field, everything goes big bada boom. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: fix unused warnings after nommu updateMike Frysinger
The massive nommu update (8feae131) left the local variable "vml" unused, so punt it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: export the last exception cause via debugfsRobin Getz
We have some test code that runs in userspace that exercises the exception handling of the Blackfin pretty thoroughly. Part of the validation process is checking the exact exception triggered, so export the last one seen to userspace via debugfs when debugging is enabled for the test code to check. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: fix length checking in kgdb_ebin2memRoel Kluin
The kgdb_ebin2mem() was decrementing the count variable to do parsing, but then later still tries to use it based on its original meaning. So leave it untouched and use a different variable to walk the memory. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: kgdb: fix up error return valuesMike Frysinger
The Blackfin kgdb code was all passing back positive errno values when it really should have been using negative errno values. Reported-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: push access_ok() L1 attribute downMike Frysinger
There is no need for the L1 attribute to be on the prototype of the access_ok() function as all consumers of the function do not care where it lives -- they'll always use pcrel calls to get to it. This prevents pointless recompiles of most of the system when this config option changes. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: convert early_printk EVT init to a loopMike Frysinger
The EVT registers are all contiguous in the memory map, so using a loop to initialize them all rather than hardcoding the list results in much better generated code (a hardware loop rather than a whole bunch of individual loads). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: rename Blackfin relocs according to the toolchainMike Frysinger
The latest Blackfin toolchain has fixed its relocation scheme to match other ports: always use R_BFIN_ prefix and capitalize everything. This brings the kernel in line with those fixes. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: convert SMP to only use generic time frameworkGraf Yang
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: override default uClinux MTD addr/sizeMike Frysinger
Due to a processor anomaly (05000263 to be exact), most Blackfin parts cannot keep the embedded filesystem image directly after the kernel in RAM. Instead, the filesystem needs to be relocated to the end of memory. As such, we need to tweak the map addr/size during boot for Blackfin systems. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: update gptimers APIMichael Hennerich
First we fix the prototypes for functions that return boolean values by using "int" rather than "uint16_t". Then we introduce a get_gptimer_run() function for checking the current run status of a timer, and then we add a disable_gptimers_sync() function which parallels disable_gptimers() with corresponding normal "_sync" behavior. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: include system/processor info in dump messagesRobin Getz
People often copy & paste crash messages without surrounding context, so include common useful information like system/processor stats in the crash summary. This should smooth over the report/test cycle a bit more. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: add workaround for anomaly 05000461Robin Getz
Returning too fast with a bad RETI can trigger false errors. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: make sure stack is accessible before dumping itRobin Getz
When displaying a crash dump, make sure accessing the stack is safe so we don't crash at the same time. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: make sure MPU CPLB for first 1k is marked as validRobin Getz
This way we properly catch and kill applications that jump to a NULL ptr. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: add workaround for anomaly 05000287Graf Yang
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: add support for gptimer0 as a tick sourceGraf Yang
For systems where the core cycles are not a usable tick source (like SMP or cycles gets updated), enable gptimer0 as an alternative. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: detect anomaly 05000274Sonic Zhang
Detect and reject operating conditions for anomaly 05000274 since the problem cannot be worked around in software. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: do not append newlines to panic() messagesMike Frysinger
The panic() function already handles newlines for us. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: delete unused sys_getpagesize() functionMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: work around anomaly 05000287Graf Yang
Make sure we work around anomaly 05000287 by configuring different port preferences for the data cache. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: punt useless GPIO init callMike Frysinger
This init code existed only to dump a printk(), and not even a useful one. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: annotate anomaly 05000119 in core DMA codeRobin Getz
Add a reminder note to avoid the DMA_DONE bit in our DMA core code. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: fix early L1 relocation crashRobin Getz
Our early L1 relocate code may implicitly call code which lives in L1 memory. This is due to the dma_memcpy() rewrite that made the DMA code lockless and safe to be used by multiple processes. If we start the early DMA memcpy to relocate things into L1 instruction but then our DMA memcpy code calls a function that lives in L1, things fall apart. As such, create a small dedicated DMA memcpy routine that we can assume sanity at boot time. Reported-by: Filip Van Rillaer <filip.vanrillaer@oneaccess-net.com> Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: do not error if GPIO IRQ is requested already as GPIOMichael Hennerich
Some drivers expect to be able to request both as GPIO and GPIO IRQ, so allow that use case. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: merge Philippe's recent ipipe patchPhilippe Gerum
ipipe-2.6.28.9-blackfin-git95aafe6.patch Singed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: fix data cache flushing when doing icache flushingMike Frysinger
Make sure we flush all data caches and their write buffers before flushing icache, otherwise random edge cases could crop up where stale data is read into icache from external memory. As fallout, punt the combined icache + dcache flush function since we cannot safely do them back to back -- the SSYNC is needed between the dcache flush and the icache flush. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-06-12Blackfin: allow scheduler functions to be placed into L1Robin Getz
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-05-27Blackfin: ignore generated vmlinux.ldsMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-21clocksource: pass clocksource to read() callbackMagnus Damm
Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (53 commits) [MTD] struct device - replace bus_id with dev_name(), dev_set_name() [MTD] [NOR] Fixup for Numonyx M29W128 chips [MTD] mtdpart: Make ecc_stats more realistic. powerpc/85xx: TQM8548: Update DTS file for multi-chip support powerpc: NAND: FSL UPM: document new bindings [MTD] [NAND] FSL-UPM: Add wait flags to support board/chip specific delays [MTD] [NAND] FSL-UPM: add multi chip support [MTD] [NOR] Add device parent info to physmap_of [MTD] [NAND] Add support for NAND on the Socrates board [MTD] [NAND] Add support for 4KiB pages. [MTD] sysfs support should not depend on CONFIG_PROC_FS [MTD] [NAND] Add parent info for CAFÉ controller [MTD] support driver model updates [MTD] driver model updates (part 2) [MTD] driver model updates [MTD] [NAND] move gen_nand's probe function to .devinit.text [MTD] [MAPS] move sa1100 flash's probe function to .devinit.text [MTD] fix use after free in register_mtd_blktrans [MTD] [MAPS] Drop now unused sharpsl-flash map [MTD] ofpart: Check name property to determine partition nodes. ... Manually fix trivial conflict in drivers/mtd/maps/Makefile
2009-04-02Simplify copy_thread()Alexey Dobriyan
First argument unused since 2.3.11. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: Blackfin arch: be less noisy when gets a gpio conflict after kernel has booted Blackfin arch: add RSI's definitions to bf514 and bf516 Blackfin arch: add link-time asserts to make sure on-chip regions dont overflow Blackfin arch: sport spi needs 6 gpio pins Blackfin arch: add sport-spi related resource stuff to board file Blackfin arch: Blacklist Hibernate (PM_SUSPEND_MEM) on BF561 as well Blackfin arch: Privide BF537-STAMP platform data of ADP5520 Multifunction driver Blackfin arch: enable the platfrom PATA driver with CF Cards Blackfin arch: clean up sports header file Blackfin arch: convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}x Blackfin arch: bf51x processors also have 8 timers Blackfin arch: add a check to make sure only Blackfin GPIOs may generate IRQs Blackfin arch: update default kernel configuration Blackfin arch: include linux headers that this one uses definitions from fro sport drivers
2009-03-29Blackfin arch: be less noisy when gets a gpio conflict after kernel has bootedRobin Getz
Once the kernel has booted - be less noisy when someone does a modprobe (and gets a gpio conflict). Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-29Blackfin arch: add link-time asserts to make sure on-chip regions dont overflowMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-28Blackfin arch: convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}xMike Frysinger
convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}x as the defines are redundant in these cases Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-27Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2Ingo Molnar
Conflicts: arch/parisc/kernel/irq.c arch/x86/include/asm/fixmap_64.h arch/x86/include/asm/setup.h kernel/irq/handle.c Semantic merge: arch/x86/include/asm/fixmap.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-24[MTD] Fix a bad dependency in the Blackfin codeBernd Schmidt
Fix a bad dependency in the Blackfin code on a RomFS config symbol that doesn't exist upstream. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-16Merge branches 'irq/genirq' and 'linus' into irq/coreIngo Molnar
2009-03-05Blackfin arch: fix bug - gdb signull case make trunk kernel panic frequentlyJie Zhang
Use copy_to_user_page and copy_from_user_page instead of memcpy. copy_to_user_page does cache flush when necessary. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: remove spurious dash when dcache is offMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: Random read/write errors are a bad thingRobin Getz
Random read/write errors are a bad thing - so don't let anyone (including the test bench) run on something we know is bad. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on ↵Sonic Zhang
bf561-ezkit kernel with smp patch Free spinlock before call IPI handlers. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Header from folded patch 'blackfin_arch__fix_bug_-_kgdb_fails_to_continue_after_setting_breakpoint_on_bf561-ezkit_kernel_with_smp_patch-1': Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch Don't test l1 code in SMP kernel. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-04Blackfin arch: Update adeos blackfin arch patch to 1.9-00Philippe Gerum
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-02Blackfin arch: fix bug - jump_to_zero test case failed on noMPU kernelBernd Schmidt
The nompu code is now derived from the mpu code, and had the same problem - no null pointer detection on ICPLBs. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Cc: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-02Blackfin arch: use common KGDB_TESTS rather than our own KGDB_TESTCASEMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-02-13Merge branches 'irq/genirq', 'irq/sparseirq' and 'irq/urgent' into irq/coreIngo Molnar
2009-02-09Merge commit 'v2.6.29-rc4' into core/percpuIngo Molnar
Conflicts: arch/x86/mach-voyager/voyager_smp.c arch/x86/mm/fault.c
2009-02-04Blackfin arch: Update Copyright informationMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-02-04Blackfin arch: define bfin_memmap as static since it is only used hereMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
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