Commit Graph

1579 Commits

Author SHA1 Message Date
Mike Frysinger a13265af99 Blackfin: fix typo in hweight asm
Run ONES on the incoming value rather than random garbage.  This fixes
random crashes with some networking code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:49 -04:00
Mike Frysinger 1ae9ab17e7 Blackfin: BF51x: fix typo in HWAIT pin define
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:48 -04:00
Mike Frysinger 399408276d Blackfin: BF54x: add ifdef protection to gpio header
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:48 -04:00
Mike Frysinger 332824b835 Blackfin: gpio: unify & clean up reserved map handling
The duplicated bit banging logic is getting out of hand, so unify the
local API to make management a lot easier.  This also makes the code
a lot easier to follow.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:47 -04:00
Mike Frysinger 74181295fb Blackfin: allow cache funcs to be in L1 for IFLUSH Anomaly 05000491
Anomaly 05000491 says that IFLUSH cannot have certain types of memory
stalls triggered before it has completed in order to function correctly.
One such condition is that it be in L1 instruction.  So add a config
option to move it there, default it to on, and throw up a warning when
it is turned off and this anomaly exists.

Since the anomaly should be worked around, we can drop the older method
of calling IFLUSH multiple times.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
2010-08-06 12:55:47 -04:00
Mike Frysinger dc7101bbae Blackfin: update anomaly lists to latest public info
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:46 -04:00
Mike Frysinger 5369fba136 Blackfin: merge anomalies 475 and 220 to follow official lists
Design found that these anomalies had the same root issue, so they've
merged 475 into 220.  We need to do the same to update to the latest
anomaly sheets.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:46 -04:00
Mike Frysinger 1ed181f248 Blackfin: move MPU anomaly check to common location
Keep all anomaly/arch checks in one place to keep logic simple.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:45 -04:00
Mike Frysinger d49e8e7e5a Blackfin: use common EXCEPTION_TABLE() in vmlinux.lds
Rather than do our own thing, use what common code provides.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:45 -04:00
Mike Frysinger 88a0ade952 Blackfin: stub fpregs dumping
The Blackfin processor has no FPU, so there are no FPU regs to dump.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:44 -04:00
Mike Frysinger f2521ce9ce Blackfin: new dynamic bfin read/write mmr helpers
These are useful when working with C structs of MMRs as the appropriate
size is selected based on the given argument.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:44 -04:00
Mike Frysinger 222f6eb66e Blackfin: punt NFC MMR bits
Now that the NFC driver has its own defines, scrub the ones from the
global namespace to avoid ugly collisions with common code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:43 -04:00
Linus Torvalds 4aed2fd8e3 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (162 commits)
  tracing/kprobes: unregister_trace_probe needs to be called under mutex
  perf: expose event__process function
  perf events: Fix mmap offset determination
  perf, powerpc: fsl_emb: Restore setting perf_sample_data.period
  perf, powerpc: Convert the FSL driver to use local64_t
  perf tools: Don't keep unreferenced maps when unmaps are detected
  perf session: Invalidate last_match when removing threads from rb_tree
  perf session: Free the ref_reloc_sym memory at the right place
  x86,mmiotrace: Add support for tracing STOS instruction
  perf, sched migration: Librarize task states and event headers helpers
  perf, sched migration: Librarize the GUI class
  perf, sched migration: Make the GUI class client agnostic
  perf, sched migration: Make it vertically scrollable
  perf, sched migration: Parameterize cpu height and spacing
  perf, sched migration: Fix key bindings
  perf, sched migration: Ignore unhandled task states
  perf, sched migration: Handle ignored migrate out events
  perf: New migration tool overview
  tracing: Drop cpparg() macro
  perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call
  ...

Fix up trivial conflicts in Makefile and drivers/cpufreq/cpufreq.c
2010-08-06 09:30:52 -07:00
Barry Song 44299179c0 mtd: Blackfin NFC: fix handling of page sizes
Rather than forcing the platform resources to declare the desired page
size, simply use the existing information passed down to us by the higher
layers.  This way we work out of the box with all flash chips that the
kernel knows about.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-05 16:14:38 +01:00
Michal Marek 772320e845 Merge commit 'v2.6.35' into kbuild/kbuild
Conflicts:
	arch/powerpc/Makefile
2010-08-04 13:59:13 +02:00
Sam Ravnborg 6588169d51 kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line
It is now possible to assign options to AS, CC and LD
on the command line - which is only used when building modules.

{A,C,LD}FLAGS_MODULE was all used both in the top-level Makefile
in the arch makefiles, thus users had no way to specify
additional options to AS, CC, LD when building modules
without overriding the original value.

Introduce a new set of variables KBUILD_{A,C,LD}FLAGS_MODULE
that is used by arch specific files and free up
{A,C,LD}FLAGS_MODULE so they can be assigned on
the command line.

All arch Makefiles that used the old variables has been updated.

Note: Previously we had a MODFLAGS variable for both
AS and CC. But in favour of consistency this was dropped.
So in some cases arch Makefile has one assignmnet replaced by
two assignmnets.

Note2: MODFLAGS was not documented and is dropped
without any notice. I do not expect much/any breakage
from this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin]
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [avr32]
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-03 14:09:45 +02:00
John Stultz 592913ecb8 time: Kill off CONFIG_GENERIC_TIME
Now that all arches have been converted over to use generic time via
clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME
config option and simplify the generic code.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <1279068988-21864-4-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-07-27 12:40:54 +02:00
Peter Zijlstra 1996bda2a4 arch: Implement local64_t
On 64bit, local_t is of size long, and thus we make local64_t an alias.
On 32bit, we fall back to atomic64_t. (architecture can provide optimized
32-bit version)

(This new facility is to be used by perf events optimizations.)

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-arch@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-06-09 11:12:36 +02:00
FUJITA Tomonori 459d42b72c blackfin: use use asm-generic/scatterlist.h
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:55 -07:00
Mike Frysinger 9c1a125921 ptrace: unify FDPIC implementations
The Blackfin/FRV/SuperH guys all have the same exact FDPIC ptrace code in
their arch handlers (since they were probably copied & pasted).  Since
these ptrace interfaces are an arch independent aspect of the FDPIC code,
unify them in the common ptrace code so new FDPIC ports don't need to copy
and paste this fundamental stuff yet again.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:44 -07:00
Linus Torvalds 064e297c32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (30 commits)
  Blackfin: SMP: fix continuation lines
  Blackfin: acvilon: fix timeout usage for I2C
  Blackfin: fix typo in BF537 IRQ comment
  Blackfin: unify duplicate MEM_MT48LC32M8A2_75 kconfig options
  Blackfin: set ARCH_KMALLOC_MINALIGN
  Blackfin: use atomic kmalloc in L1 alloc so it too can be atomic
  Blackfin: another year of changes (update copyright in boot log)
  Blackfin: optimize strncpy a bit
  Blackfin: isram: clean up ITEST_COMMAND macro and improve the selftests
  Blackfin: move string functions to normal lib/ assembly
  Blackfin: SIC: cut down on IAR MMR reads a bit
  Blackfin: bf537-minotaur: fix build errors due to header changes
  Blackfin: kgdb: pass up the CC register instead of a 0 stub
  Blackfin: handle HW errors in the new "FAULT" printing code
  Blackfin: show the whole accumulator in the pseudo DBG insn
  Blackfin: support all possible registers in the pseudo instructions
  Blackfin: add support for the DBG (debug output) pseudo insn
  Blackfin: change the BUG opcode to an unused 16-bit opcode
  Blackfin: allow NMI watchdog to be used w/RETN as a scratch reg
  Blackfin: add support for the DBGA (debug assert) pseudo insn
  ...
2010-05-24 08:02:58 -07:00
Joe Perches db52ecc295 Blackfin: SMP: fix continuation lines
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:15 -04:00
Wolfram Sang efc5863eb5 Blackfin: acvilon: fix timeout usage for I2C
The timeout value is in jiffies, so it should be using HZ, not a plain
number. As '10000' is ambiguous, 1HZ is used as conservative default.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Valentin Yakovenkov <yakovenkov@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:15 -04:00
Michael Hennerich d016a21362 Blackfin: fix typo in BF537 IRQ comment
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:14 -04:00
Mike Frysinger 084f9ebfd0 Blackfin: unify duplicate MEM_MT48LC32M8A2_75 kconfig options
Reported-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:13 -04:00
FUJITA Tomonori 76b99699a2 Blackfin: set ARCH_KMALLOC_MINALIGN
Architectures that handle DMA-non-coherent memory need to set
ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe:
the buffer doesn't share a cache with the others.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:13 -04:00
Mike Frysinger eb5400b613 Blackfin: use atomic kmalloc in L1 alloc so it too can be atomic
Some drivers allocate L1 SRAM in atomic contexts, so make sure these
functions also use GFP_ATOMIC to avoid BUG()'s.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:12 -04:00
Mike Frysinger be1577e378 Blackfin: another year of changes (update copyright in boot log)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:11 -04:00
Robin Getz 648eee52cc Blackfin: optimize strncpy a bit
Add a little strncpy optimization which can easily cut boot time by 20%.

When the kernel is booting with initramfs, it builds up the filesystem
from a cpio archive by calling strncpy_from_user() via fs/namei.c's
do_getname() on every file in the archive (which can be lots) with a
length of PATH_MAX (1024).  This causes the dest of the strncpy to be
padded with many NUL bytes.

This optimization mostly causes these NUL bytes to be padded with a call
to memset() which is already optimized for filling memory quickly, but
the hardware loop helps a little bit as well.

Boot time measured with 'loglevel=0' so UART speed doesn't get in the way.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:11 -04:00
Mike Frysinger c70dcabc8e Blackfin: isram: clean up ITEST_COMMAND macro and improve the selftests
The IADDR2DTEST() macro had some duplicated logic with bit 11 and some
incorrect comments, so scrub all of that.

In order to verify these aren't a problem (and won't be in the future),
extend the self tests to operate on as much L1 SRAM as possible.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:10 -04:00
Robin Getz 479ba60358 Blackfin: move string functions to normal lib/ assembly
Since 'extern inline' doesn't work correctly in the context of the Linux
kernel (too many overriding defines), move the string functions to normal
lib/ assembly files (like the existing mem funcs).  This avoids the forced
inline all over the kernel and allows us to place them constantly in L1.

This also avoids some module failures when gcc inserts calls to string
functions but the kernel build system doesn't fully consult the library
archives.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:09 -04:00
Mike Frysinger 80fcdb9593 Blackfin: SIC: cut down on IAR MMR reads a bit
Tweak the for loops that operate on the SIC IAR system MMRs to avoid
re-reading them multiple times in a row.  System MMRs are a little
slower to access, so avoid the penalty when possible.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:09 -04:00
Mike Frysinger 11cabcb95e Blackfin: bf537-minotaur: fix build errors due to header changes
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:08 -04:00
Mike Frysinger d2db97bf6b Blackfin: kgdb: pass up the CC register instead of a 0 stub
While the CC pseudo register can be deduced from the ASTAT register, make
sure we set its value correctly instead of always stubbing it out as 0.
GDB itself looks at this pseudo register instead of ASTAT, so we have to
supply the right value.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:07 -04:00
Robin Getz a80d5f449d Blackfin: handle HW errors in the new "FAULT" printing code
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:07 -04:00
Robin Getz a6d9dbf5e4 Blackfin: show the whole accumulator in the pseudo DBG insn
Rather than print just part of the accumulator register, show the whole
40 bits.  This matches the simulator behavior better.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:06 -04:00
Robin Getz 5a132f7aeb Blackfin: support all possible registers in the pseudo instructions
Rather than decoding just the common R/P registers, handle all of them.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:05 -04:00
Robin Getz dc89d97fc7 Blackfin: add support for the DBG (debug output) pseudo insn
Another pseudo insn used by Blackfin simulators.  Also factor some now
common register lookup code out of the DBGA handlers.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:05 -04:00
Robin Getz 6a4110c2b3 Blackfin: change the BUG opcode to an unused 16-bit opcode
The current BUG opcode includes the bit that flags the insn as a 32bit
opcode, but it wasn't declaring it as 32bits.  So pick an unused 16bit.

URL: http://blackfin.uclinux.org/gf/tracker/5973
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:04 -04:00
Graf Yang c429886a70 Blackfin: allow NMI watchdog to be used w/RETN as a scratch reg
NMIs are not safe to return from because many anomaly workarounds are
implemented by disabling interrupts.  The NMI obviously violates this
assumption.  Since the NMI watchdog never returns, we don't have to
worry about it clobbering RETN when it is being used as a scratch register
with the exception stack.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:19:04 -04:00
Robin Getz 6ce3e9c2a2 Blackfin: add support for the DBGA (debug assert) pseudo insn
A few pseudo debug insns exist to make testing of simulators easier.
Since these don't actually exist in the hardware, we have to have the
exception handler take care of emulating these.  This allows sim test
cases to be executed unmodified under Linux and thus simplify debugging
greatly.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22 14:18:56 -04:00
Graf Yang 2620c83668 Blackfin: SMP: add flush_tlb_kernel_range stub
Newer code in mm/page_alloc.c requires this function now in arches.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:20 -04:00
Robin Getz 9a95e2f100 Blackfin: make hardware trace output a little more useful
Decode the vast majority of insns that appear in the trace buffer to get a
better idea of what's going on at a glance.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:19 -04:00
Robin Getz d60805ad47 Blackfin: print out the faulting insn in the trace output
Print out the faulting instruction so when people send traces as part of
bug reports, we have a better idea of what is going on.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:19 -04:00
Robin Getz d28cff4b61 Blackfin: remove CONFIG_DEBUG_VERBOSE from trace.c
Now that the split traps code has moved all the verbose output to the
trace.c file, we can unify all the CONFIG_DEBUG_VERBOSE handling.  This
gets rid of much of the crappy ifdef forest and enables usage of normal
pr_xxx functions so checkpatch stops complaining.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:18 -04:00
Robin Getz 2a12c4632d Blackfin: split kernel/traps.c
The current kernel/traps.c file has grown a bit unwieldy as more debugging
functionality has been added over time, so split it up into more logical
files.  There should be no functional changes here, just minor whitespace
tweaking.  This should make future extensions easier to manage.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:17 -04:00
Michael Hennerich bb84dbf69b Blackfin: punt Blackfin-specific GPIO wakeup API
This patch removes a custom GPIO wakeup API which allowed GPIOs to act
as wakeup sources, which are not configured as Interrupts.
This API is a leftover from the time before irq_wake was established.
From now on people must use enable_irq_wake(GPIO_IRQx) and the GPIO in
question needs to be configured as Interrupt.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:16 -04:00
Cliff Cai 85eb0e4b15 Blackfin: mark MUSB VRSEL as active high for appropriate boards
These boards all have the GPIO VRSEL hooked up as an active high.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:40:15 -04:00
Mike Frysinger def282d615 Blackfin: punt duplicated CAN MMRs
Now that there's a common header with everything unified, drop the defines
from the global namespace.  Pollution sucks.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:34:37 -04:00
Mike Frysinger d012ce22a4 Blackfin: cleanup style/comments/etc... in paging_init()
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:03:16 -04:00
Mike Frysinger f074e48e0a Blackfin: drop unused bad_page pages and move zero_page to the bss
The empty_bad_page/empty_bad_page_table pages are unused, so punt them.
The zero_page is always allocated, so push it out to the bss to speed up
the booting process a bit and pack data nicer.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-21 09:03:15 -04:00
Jason Wessel e8861129d3 kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin
The new debug core api requires all architectures that use to debug
core to implement a function to set the program counter.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-05-20 21:04:20 -05:00
Linus Torvalds f39d01be4c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits)
  vlynq: make whole Kconfig-menu dependant on architecture
  add descriptive comment for TIF_MEMDIE task flag declaration.
  EEPROM: max6875: Header file cleanup
  EEPROM: 93cx6: Header file cleanup
  EEPROM: Header file cleanup
  agp: use NULL instead of 0 when pointer is needed
  rtc-v3020: make bitfield unsigned
  PCI: make bitfield unsigned
  jbd2: use NULL instead of 0 when pointer is needed
  cciss: fix shadows sparse warning
  doc: inode uses a mutex instead of a semaphore.
  uml: i386: Avoid redefinition of NR_syscalls
  fix "seperate" typos in comments
  cocbalt_lcdfb: correct sections
  doc: Change urls for sparse
  Powerpc: wii: Fix typo in comment
  i2o: cleanup some exit paths
  Documentation/: it's -> its where appropriate
  UML: Fix compiler warning due to missing task_struct declaration
  UML: add kernel.h include to signal.c
  ...
2010-05-20 09:20:59 -07:00
Linus Torvalds 7d02093e29 Merge branch 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  avr32: Fix typo in read_persistent_clock()
  sparc: Convert sparc to use read/update_persistent_clock
  cris: Convert cris to use read/update_persistent_clock
  m68k: Convert m68k to use read/update_persistent_clock
  m32r: Convert m32r to use read/update_peristent_clock
  blackfin: Convert blackfin to use read/update_persistent_clock
  ia64: Convert ia64 to use read/update_persistent_clock
  avr32: Convert avr32 to use read/update_persistent_clock
  h8300: Convert h8300 to use read/update_persistent_clock
  frv: Convert frv to use read/update_persistent_clock
  mn10300: Convert mn10300 to use read/update_persistent_clock
  alpha: Convert alpha to use read/update_persistent_clock
  xtensa: Fix unnecessary setting of xtime
  time: Clean up direct xtime usage in xen
2010-05-19 17:10:06 -07:00
Andreas Dilger 0ddc9324b1 add descriptive comment for TIF_MEMDIE task flag declaration.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-14 11:13:27 +02:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Linus Torvalds 3971047930 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (96 commits)
  Blackfin: stop cleaning include/asm/asm-offsets.h
  Blackfin: scale calibration when cpu freq changes
  Blackfin: eat spurious space in asm/dpmc.h
  Blackfin: fix anomaly 283 handling with exact hardware error
  Blackfin: bf537-stamp: add example ADXL346 orientation resources
  Blackfin: bf537-stamp: add example AD2S1210 IIO resources
  Blackfin: don't support keypad wakeup from hibernate
  Blackfin: bf537-stamp: add example AD7416 IIO resources
  Blackfin: bf537-stamp: add example ADP8860 backlight/led resources
  Blackfin: bf537-stamp: add example AD7414 temp sensor resources
  Blackfin: rename AD1836 to AD183X in board files
  Blackfin: bf537-stamp: add example AD2S120x resources
  Blackfin: add support for the on-chip MAC status interrupts
  Blackfin: asm/page.h: pull in asm-generic headers
  Blackfin: mark gpio lib functions static
  Blackfin: bf537-stamp: add example ADAU1361 resources
  Blackfin: GPIO: implement to_irq handler
  Blackfin: bf537-stamp: add example ADP122/ADP150 power regulator resources
  Blackfin: bf537-stamp: add example AD2S90 resources
  Blackfin: bf537-stamp: add example AD5398 power regulator resources
  ...
2010-03-18 17:02:35 -07:00
John Stultz cb0e996378 blackfin: Convert blackfin to use read/update_persistent_clock
This patch converts the blackfin architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.

I have not built or tested this patch, so help from arch maintainers
would be appreciated.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1267675049-12337-10-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-03-13 01:14:12 +01:00
Linus Torvalds c32da02342 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits)
  doc: fix typo in comment explaining rb_tree usage
  Remove fs/ntfs/ChangeLog
  doc: fix console doc typo
  doc: cpuset: Update the cpuset flag file
  Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed
  Remove drivers/parport/ChangeLog
  Remove drivers/char/ChangeLog
  doc: typo - Table 1-2 should refer to "status", not "statm"
  tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments
  No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h
  devres/irq: Fix devm_irq_match comment
  Remove reference to kthread_create_on_cpu
  tree-wide: Assorted spelling fixes
  tree-wide: fix 'lenght' typo in comments and code
  drm/kms: fix spelling in error message
  doc: capitalization and other minor fixes in pnp doc
  devres: typo fix s/dev/devm/
  Remove redundant trailing semicolons from macros
  fix typo "definetly" -> "definitely" in comment
  tree-wide: s/widht/width/g typo in comments
  ...

Fix trivial conflict in Documentation/laptops/00-INDEX
2010-03-12 16:04:50 -08:00
FUJITA Tomonori 2b4f767af7 dma-mapping: blackfin: remove the obsolete and unnecessary DMA API comments
pci_dma_sync_single was obsoleted long ago.

All the comments are generic, not architecture specific, simply describes
some of the DMA-API (and the same comments are in other files).
Documentation/DMA-API.txt have more detailed descriptions.

This removes the above obsolete and unnecessary DMA API comments.  Let's
describe the DMA API in only Documentation/DMA-API.txt.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12 15:52:42 -08:00
Mike Frysinger eb63e5d157 Blackfin: stop cleaning include/asm/asm-offsets.h
The file is no longer generated, so we don't want to clean it.

Reported-by: Vivi Li <vivi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 09:05:20 -05:00
Graf Yang 7998a8787a Blackfin: scale calibration when cpu freq changes
Need to make sure we update the loops_per_jiffy values when we start
changing the core clock.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:53 -05:00
Mike Frysinger f2b0cd61cf Blackfin: eat spurious space in asm/dpmc.h
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:53 -05:00
Robin Getz 2943bff69e Blackfin: fix anomaly 283 handling with exact hardware error
The exact hardware error handling code was added before the workaround
for anomaly 283 which caused the anomaly to be triggered in some cases
(an infinite core stall).  So re-order the code to avoid this.

Reported-by: Andrew Rook <andrew.rook@speakerbus.co.uk>
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:53 -05:00
Michael Hennerich 6ba255f4a8 Blackfin: bf537-stamp: add example ADXL346 orientation resources
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:53 -05:00
Graf Yang 848c51ccee Blackfin: bf537-stamp: add example AD2S1210 IIO resources
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:53 -05:00
Michael Hennerich ae4a8c1903 Blackfin: don't support keypad wakeup from hibernate
The on-chip keypad peripheral requires different registers to be setup
depending on the standby type (standby vs hibernation).  However, since
the power management framework doesn't differentiate between these types,
the driver doesn't know which registers to program and subsequently it
avoids doing so.

Always enabling the keyboard wakeup source causes misbehavior when the
pins are not assigned to the keypad.  If they happen to drive a certain
level, they'll trigger a wake up event which is not wanted.  So until
the aforementioned issue can be sorted out, drop support for the
wakeup source completely.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:53 -05:00
Sonic Zhang ef8873e06e Blackfin: bf537-stamp: add example AD7416 IIO resources
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Michael Hennerich 72fa2e9204 Blackfin: bf537-stamp: add example ADP8860 backlight/led resources
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Sonic Zhang 5f0225948e Blackfin: bf537-stamp: add example AD7414 temp sensor resources
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Barry Song d40bd71f88 Blackfin: rename AD1836 to AD183X in board files
The ASoC codec driver was generalized and renamed, so update the board
resources accordingly.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Graf Yang df6a949b46 Blackfin: bf537-stamp: add example AD2S120x resources
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Michael Hennerich aec59c9113 Blackfin: add support for the on-chip MAC status interrupts
This patch provides infrastructure for MAC Wake-On-Lan and PHYINT use in
phylib.  New Interrupts added:

IRQ_MAC_PHYINT   /* PHY_INT Interrupt */
IRQ_MAC_MMCINT   /* MMC Counter Interrupt */
IRQ_MAC_RXFSINT  /* RX Frame-Status Interrupt */
IRQ_MAC_TXFSINT  /* TX Frame-Status Interrupt */
IRQ_MAC_WAKEDET  /* Wake-Up Interrupt */
IRQ_MAC_RXDMAERR /* RX DMA Direction Error Interrupt */
IRQ_MAC_TXDMAERR /* TX DMA Direction Error Interrupt */
IRQ_MAC_STMDONE  /* Station Mgt. Transfer Done Interrupt */

On BF537/6 the implementation is not straight forward since there are now
two chained chained_handlers.  A cleaner approach would have been to add
latter IRQs to the demux of IRQ_GENERIC_ERROR.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Mike Frysinger b274080145 Blackfin: asm/page.h: pull in asm-generic headers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Joachim Eastwood f9c29e872b Blackfin: mark gpio lib functions static
Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Cliff Cai c48d767569 Blackfin: bf537-stamp: add example ADAU1361 resources
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Joachim Eastwood 7f4f69f991 Blackfin: GPIO: implement to_irq handler
This makes it possible to support IRQs coming from off-chip GPIO
controllers.

Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Sonic Zhang f8e6dbffa7 Blackfin: bf537-stamp: add example ADP122/ADP150 power regulator resources
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Graf Yang f5f9531c7e Blackfin: bf537-stamp: add example AD2S90 resources
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:52 -05:00
Sonic Zhang f32792d045 Blackfin: bf537-stamp: add example AD5398 power regulator resources
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Frans Pop 2bc4affe9c Blackfin: remove trailing space in messages
Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Michael Hennerich fe5b25c098 Blackfin: bf537-stamp: add example ADS7846 touchscreen resources
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger ddaebcabbc Blackfin: add support for restart_syscall()
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger 9e228ee9ea Blackfin: check for bad syscalls after tracing it
We want to report all system calls (even invalid ones) to the tracing
layers, so check the NR only after we've notified.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger 600482c13d Blackfin: fix single stepping over system calls
On Blackfin systems, the hardware single step exception triggers before
the system call exception, so we need to save this info to process it
later on.  Otherwise, single stepping in userspace misses a few insns
right after the system call.

This is based a bit on the SuperH code added in commit 4b505db9c4.

Reported-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger e8f263dfd3 Blackfin: initial tracehook support
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger e50e2f25c5 Blackfin: initial regset support
We don't support core dumps (yet?), but this should make things easier.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger f2ce48024a Blackfin: simplify PTRACE_{PEEK,POKE}USR in preperation for regset support
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Mike Frysinger 5f09c77d2a Blackfin: simplify SYSCFG code a bit and ignore attempts to change it
We don't want to let user space modify the SYSCFG register arbitrarily as
the settings are system wide (SNEN/CNEN) and can cause misbehavior.  The
only other bit here (SSSTEP) has proper controls via PTRACE_SINGLESTEP.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Christoph Hellwig f5b99627a3 Blackfin: use generic ptrace_resume code
Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
PTRACE_KILL and PTRACE_SINGLESTEP.  This implies defining
arch_has_single_step in <asm/ptrace.h> and implementing the
user_enable_single_step and user_disable_single_step functions, which
also causes the breakpoint information to be cleared on fork, which
could be considered a bug fix.

Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL
which it previously wasn't which is consistent with all architectures
using the modern ptrace code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Barry Song ad6720c0b5 Blackfin: bf537-stamp: add example AD715{0,2}/AD774{5,6,7} IIO resources
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -05:00
Graf Yang 718340f629 Blackfin: rewrite resync_core_{i,d}cache() SMP logic to avoid per_cpu data
This functions are implicitly called by core functions like cpu_relax(),
and since those functions may be called early on before common code has
initialized the per-cpu data area, we need to tweak the stats gathering.
Now the statistics are maintained in common bss which makes these funcs
safe to use as soon as the C runtime env is setup.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Graf Yang 6c2b7072a7 Blackfin: add support for cpufreq on SMP systems
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Barry Song 3b82790c12 Blackfin: rename AD1938 to AD193X in board files
The ASoC codec driver was generalized and renamed, so update the board
resources accordingly.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Yi Li 7136d9c5e8 Blackfin: add CALLER_ADDR ftrace macros
Since GCC doesn't support __builtin_frame_address(n) where n!=0, add our
own function to walk the stack frame pointers.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Mike Frysinger 652afdc340 Blackfin: move KGDB selection to the way other arches do it
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Graf Yang 64b33a00dc Blackfin: split watchdog definitions into a dedicated header file
This allows things to be shared between the different watchdog sources.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Barry Song 4ab069e535 Blackfin: add dma_disable_irq_nosync() API for irq handlers
Some IRQ handlers need to disable a DMA channel without waiting.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Mike Frysinger 3750411fb7 Blackfin: fix whitespace damage in thread_info.h
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Mike Frysinger b73faf7449 Blackfin: support new ftrace frame pointer semantics
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Mike Frysinger aebfef0324 Blackfin: implement ftrace mcount test
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Barry Song 6388d14eb2 Blackfin: implement ndelay()
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:50 -05:00
Graf Yang 60ffdb3654 Blackfin: implement nmi_watchdog for SMP on BF561
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Barry Song 726e96561e Blackfin: respect the L1 kconfig optimization in the MPU code
Restore support for CONFIG_EXCPT_IRQ_SYSC_L1 in the MPU CPLB manager.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Barry Song 336746ed8e Blackfin: bf537-stamp/bf527-ezkit: move ASoC SPORT resources to boards file
Rather than declaring pin resources in the drivers, do it in the board.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Barry Song 439b486746 Blackfin: bf548-ezkit: add ASoC CPU DAI resources
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Michael Hennerich f3dec78333 Blackfin: increase NR_IRQS beyond NR on-chip IRQs
This makes room for off-chip IRQ controllers.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Barry Song 5e8d3210b5 Blackfin: fill out the signal si_addr when sending a SIGBUS/SIGSEGV
Some userspace applications use this member in diagnosing crashes.  It
also makes some LTP tests pass (i.e. the Blackfin arch behaves more like
everyone else).

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Mike Frysinger 0531c467da Blackfin: bf537-stamp: move ADF7021 MAC storage into platform resources
Just generate a random MAC on the demo board since the ADF702x lacks
dedicated storage for such things.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Yi Li 441504df6b Blackfin: add support for irqflags tracing
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Harald Krapfenbauer 5aff1642ae Blackfin: tcm-bf518: new board port
Signed-off-by: Harald Krapfenbauer <harald.krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Barry Song 38e7673f24 Blackfin: bf537-stamp: declare parallel flash as ROM with XIP kernel
When the kernel is executing out of parallel flash (XIP), we can't have
the flash go into an erase/programming cycle, otherwise the instruction
fetching steps fail and everything crashes.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Cliff Cai 29bb3bc0c7 Blackfin: bf527-ezkit/bf537-stamp: add example SSM2602 I2C resources
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Graf Yang c6669c223a Blackfin: fix up mm locking in address dumping
The locking code in the address dumper needs to grab the mm's mmap_sem
so that other CPUs do not get an inconsistent view.  On UP systems this
really wasn't a problem, but it is easy to trigger a race on SMP systems
when another CPU removes a mapping.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:49 -05:00
Barry Song 7e1082b7db Blackfin: bf533-{ezkit,stamp}: add sound platform devices
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Mike Frysinger 8d0177dbcb Blackfin: kgdb: mark all local funcs/structs static
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Roel Kluin 48a74f9d1b Blackfin: fix decoding of opcodes 41-47 in decode_instruction()
This condition allowed only decoding of opcode 0x0040

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Barry Song d86bfb1600 Blackfin: initial XIP support
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Barry Song aad16f3228 Blackfin: fix initial stack pointer setup
During very early init, the stack pointer is given a slightly incorrect
value (&init_thread_union).  The value is later adjusted to the right one
during early init (&init_thread_union + THREAD_SIZE), but it is used a few
times in between.  While the few functions used don't actually put things
onto the stack (due to optimization), it's best if we simply use the right
value from the start.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Barry Song 8916a1499d Blackfin: fix the section name of init_thread_union
Use the common attribute rather than setting the section name directly.
The common linker script defines expect the newer naming.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Barry Song 6feda3a653 Blackfin: replace harcoded define with proper THREAD_SIZE macro
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Jie Zhang 0afc272cc6 Blackfin: fix relocation errors with large initramfs images
Since we are now discarding .exit.text at runtime instead of link time, we
need to place all .text sections ahead of the .data sections.  Otherwise,
a really large attached initramfs may cause link errors as it pushes the
PC relative relocations behind the limits of the Blackfin ISA (~16meg).
The instructions in the .exit.text are unable to call back into the .text
sections leading to a link failure.

Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Yi Li cb191718fc Blackfin: try to simplify interrupt ifdef ugliness
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Yi Li 54536c5c6a Blackfin: simplify SMP handling in SRAM code
There is no need to use {get,put}_cpu() when we already have a spinlock to
protect against multiple processors running simultaneously.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Graf Yang 0b39db28b9 Blackfin: SMP: add PM/CPU hotplug support
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Yi Li 0d152c27e3 Blackfin: SMP: make core timers per-cpu clock events for HRT
SMP systems require per-cpu local clock event devices in order to enable
HRT support.  One a BF561, we can use local core timer for this purpose.
Originally, there was one global core-timer clock event device set up for
core A.

To accomplish this feat, we need to split the gptimer0/core timer logic
so that each is a standalone clock event.  There is no requirement that
we only have one clock event source anyways.  Once we have this, we just
define per-cpu clock event devices for each local core timer.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:48 -05:00
Graf Yang 682f5dc4ed Blackfin: drop cpu_callin_map on SMP systems
Common API already provides functions for managing online CPUs.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Sonic Zhang 0325f25a91 Blackfin: SMP: add support for IRQ affinity
Now that the Blackfin IRQ controller supports this, drivers get the normal
functionality of controlling which CPU to bind IRQs to.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Mike Frysinger 69e1d8a61d Blackfin: unify MMR helpers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Mike Frysinger f05ede3a94 Blackfin: isram: add unlikely to sanity checks
Don't want the compiler assuming the rare sanity checks are the norm and
optimize for those paths.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Sonic Zhang 0ea19c64e3 Blackfin: update defconfigs
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Michael Hennerich 0f7b468b6e Blackfin: add optimized version of Hamming Weight functions
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Valentin Yakovenkov 252077cf7d Blackfin: bf561-acvilon: save the smsc911x mac address
Signed-off-by: Valentin Yakovenkov <yakovenkov@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Sonic Zhang 7a9cc48907 Blackfin: bf537-stamp: unify duplicated ADP5588 headers
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Mike Frysinger 01218654cd Blackfin: bf537-stamp: change CONFIG_USB_SL811_BFIN_IRQ to IRQ_PF4
The Kconfig option was never mainlined, so replace the define with the
actual pin that it is hooked up to by default.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Mike Frysinger 3b781de6dd Blackfin: drop unused SL811 platform resources from bf527/pnav boards
These platforms don't hook up to this USB controller, so no point in
declaring resources for it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Michael Hennerich 1dafdc513a Blackfin: BF51x: fix L1 Instruction SRAM size
The BF51x's Instruction SRAM is 32kB, not 48kB.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:47 -05:00
Michael Hennerich 244d34230b Blackfin: update AD7879 resources to match the new gpiolib driver support
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Michael Hennerich edd0799250 Blackfin: gpio: use shorter name
The gpio label size is 16 char, but the current code uses a longer name
resulting in chopped display.  So use a shorter name.

Reported-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Michael Hennerich 15435a2a55 Blackfin: pull in asm/bfin_can.h for interrupt masks
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Sonic Zhang a3a6a59019 Blackfin: dma-mapping: fix thinko in constant optimization
Make sure the non-constant version of the dma_sync functions actually
complete instead of recursively calling itself forever.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Mike Frysinger 0c270807db Blackfin: drop duplicate HOTPLUG Kconfig option
The option already exists for everyone in init/Kconfig.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Mike Frysinger 0e64268ced Blackfin: merge common CAN defines into one headers
Rather than copy and paste the MMR defines and register layout,
consolidate everything in one place.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Mike Frysinger 360adee8a5 Blackfin: wire up the various memory related syscalls
These all just go to the stub syscall at the moment, so this is largely
future proofing.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Graf Yang ead9b1156d Blackfin: SMP: enable HAVE_LEGACY_PER_CPU_AREA
The current Blackfin SMP code relies on the legacy cpu area code, so
select it until we port things to the newer code.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Sonic Zhang 5792ab2a0a Blackfin: MPU: handle caches for reserved memory
We weren't handling the user-specified cache behavior for the reserved
memory regions (via mem=/max_mem=).  The no-MPU code already takes care
of this, so add support to the MPU code as well.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Michael Hennerich d94a1aa44e Blackfin: extend bfin-lq035q1-fb resources to include PPI mode
This lets us support the new BF527-EZKIT V2.1 via platform resources
tweaks only.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Michael Hennerich 6924dfb058 Blackfin: bf527-ezkit: add support for V2.1 boards
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Barry Song e18e7dd334 Blackfin: fix MPU page permission masks overflow when dealing with async memory
Attempting to use the MPU while doing XIP out of parallel flash hooked up
to the async memory bus would often result in random crashes as the MPU
slowly corrupted memory.

The fallout here is that the async banks gain MPU protection from user
space too.  So any accesses have to go through the mmap() interface rather
than just using hardcoded pointers.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:46 -05:00
Yi Li c9784ebb23 Blackfin: flush caches on SMP when one core calls another via IPI
Sometimes a SMP system will randomly panic at boot.  This is due to caches
being out of sync when one core tries to signal the other.  So when one
core calls another via IPI, flush the data caches.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:45 -05:00