Commit Graph

158 Commits

Author SHA1 Message Date
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 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
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
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
Mike Frysinger e8f263dfd3 Blackfin: initial tracehook support
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:51 -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
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
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 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
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
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
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
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
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
Linus Torvalds 525995d77c 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: (88 commits)
  Blackfin: Convert BUG() to use unreachable()
  Blackfin: define __NR_recvmmsg
  Blackfin: drop duplicate sched_clock
  Blackfin: NOMPU: skip DMA ICPLB hole when it is redundant
  Blackfin: MPU: add missing __init markings
  Blackfin: add support for TIF_NOTIFY_RESUME
  Blackfin: kgdb_test: clean up code a bit
  Blackfin: convert kgdbtest to proc_fops
  Blackfin: convert cyc2ns() to clocksource_cyc2ns()
  Blackfin: ip0x: pull in asm/portmux.h for P_xxx defines
  Blackfin: drop unused ax88180 resources
  Blackfin: bf537-stamp: add ADF702x network driver resources
  Blackfin: bf537-stamp: add CAN resources
  Blackfin: bf537-stamp: add AD5258 i2c address
  Blackfin: bf537-stamp: add adau1761 i2c address
  Blackfin: bf537-stamp: add adau1371 i2c address
  Blackfin: bf537-stamp: add ADP8870 resources
  Blackfin: bf537-stamp: kill AD714x board-specific Kconfigs
  Blackfin: bf537-stamp: update ADP5520 resources
  Blackfin: bf537-stamp: add ADXL346 orientation sensing support
  ...
2009-12-16 10:52:35 -08:00
Alan Jenkins 9e1b9b8072 module: make MODULE_SYMBOL_PREFIX into a CONFIG option
The next commit will require the use of MODULE_SYMBOL_PREFIX in
.tmp_exports-asm.S.  Currently it is mixed in with C structure
definitions in "asm/module.h".  Move the definition of this arch option
into Kconfig, so it can be easily accessed by any code.

This also lets modpost.c use the same definition.  Previously modpost
relied on a hardcoded list of architectures in mk_elfconfig.c.

A build test for blackfin, one of the two MODULE_SYMBOL_PREFIX archs,
showed the generated code was unchanged.  vmlinux was identical save
for build ids, and an apparently randomized suffix on a single "__key"
symbol in the kallsyms data).

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Mike Frysinger <vapier@gentoo.org> (blackfin)
CC: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-12-15 16:28:26 +10:30
Barry Song c45c06596e Blackfin: support smaller uncached DMA chunks for memory constrained systems
When working with 8 meg systems, forcing a 1 meg DMA chunk heavily cuts
into the available resources.  So support smaller chunks to better cover
needs for these systems.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:15:48 -05:00
Mike Frysinger 5df326aca4 Blackfin: push BF5Xx configs down into mach-specific Kconfigs
While we're moving the BF54x code, have the BF54xM variants select the
normal BF54x values so that the rest of the Kconfig tree doesn't need to
check the BF54xM variant everytime it wants to check the BF54x.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:15:45 -05:00
Mike Frysinger 872d024b40 Blackfin: pull in firmware Kconfig
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:14:12 -05:00
Mike Frysinger ddf9ddacef Blackfin: convert to generic checksum code
The Blackfin port only implemented an optimized version of the
csum_tcpudp_nofold function, so convert everything else to the new
generic code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:13:32 -05:00
Michael Hennerich 796dada9f5 Blackfin: convert to GENERIC_HARDIRQS_NO__DO_IRQ
Blackfin already sets proper flow handlers on all IRQs, and we don't rely
on __do_IRQ, therefore we can simply select GENERIC_HARDIRQS_NO__DO_IRQ.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-08 00:58:20 -04:00
john stultz 10f03f1a24 Blackfin: convert to use arch_gettimeoffset()
Convert Blackfin to use GENERIC_TIME via the arch_getoffset()
infrastructure, reducing the amount of arch specific code we need to
maintain.

I've taken my best swing at converting this, but I'm not 100% confident
I got it right.  My cross-compiler is now out of date (gcc4.2) so I
wasn't able to check if it compiled. Any assistance from arch
maintainers or testers to get this merged would be great.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-07 04:36:20 -04:00
Graf Yang e78feaaeeb Blackfin: swap clocksource ratings for gptimer/cycles
The cycles clocksource is a higher resolution than the gptimer one, so
make sure the ratings field reflects this.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:48 -04:00
Harald Krapfenbauer 6058434468 Blackfin: cm-bf537u: split board from cm-bf537e
The cm-bf537u module, while similar to the cm-bf537e, is different enough
to warrant its own resources.  It has a USB controller but no PHY.

Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:45 -04:00
Mike Frysinger 3aa670419a Blackfin: punt dead cache locking code
No one uses these functions, and some are duplicate of existing C code.  So
just punt the whole thing.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:25 -04:00
Mike Frysinger 7b06263bd7 Blackfin: fix BF522/BF523 max VCO mixup
The BF522 and BF523 had their real max VCO values swapped.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:22 -04:00
Graf Yang ad46163ac2 Blackfin: SMP port does not yet support cpu frequency scaling
We have an item to get this fixed, but in the mean time, disable selection
via Kconfig dependencies.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 22:10:21 -04:00
Sonic Zhang 9c954f8941 Blackfin: unify duplicated SMP checks in L2 cache kconfig
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16 21:28:59 -04:00
Mike Frysinger 3aca47c020 Blackfin: fix GPTMR0_CLOCKSOURCE dependency on BFIN_GPTIMERS
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>
2009-06-22 21:16:15 -04:00
Graf Yang ee48efb5dc Blackfin: bf526-ezbrd: handle different SDRAM chips
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>
2009-06-22 21:16:12 -04:00
Jie Zhang 41ba653f24 Blackfin: decouple unrelated cache settings to get exact behavior
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>
2009-06-22 21:15:59 -04:00
Philippe Gerum a40494a62a Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipeline
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-22 21:15:54 -04:00
Mike Frysinger 3d15f302d0 Blackfin: allow people to select BF51x-0.1 silicon rev
Now that 0.1 of the BF51x is coming out, allow people to build for it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-22 21:15:51 -04:00
Linus Torvalds 8d6cea5111 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: (27 commits)
  Blackfin: hook up new rt_tgsigqueueinfo syscall
  Blackfin: improve CLKIN_HZ config default
  Blackfin: initial support for ftrace grapher
  Blackfin: initial support for ftrace
  Blackfin: enable support for LOCKDEP
  Blackfin: add preliminary support for STACKTRACE
  Blackfin: move custom sections into sections.h
  Blackfin: punt unused/wrong mutex-dec.h
  Blackfin: add support for irqflags
  Blackfin: add support for bzip2/lzma compressed kernel images
  Blackfin: convert Kconfig style to def_bool
  Blackfin: bf548-ezkit: update smsc911x resources
  Blackfin: update aedos-ipipe code to upstream 1.10-00
  Blackfin: bf537-stamp: update ADP5520 resources
  Blackfin: bf518f-ezbrd: fix SPI CS for SPI flash
  Blackfin: define SPI IRQ in board resources
  Blackfin: do not configure the UART early if on wrong processor
  Blackfin: fix deadlock in SMP IPI handler
  Blackfin: fix flag storage for irq funcs
  Blackfin: push down exception oops checking
  ...
2009-06-16 11:49:58 -07:00
Linus Torvalds 489f7ab6c1 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: (31 commits)
  trivial: remove the trivial patch monkey's name from SubmittingPatches
  trivial: Fix a typo in comment of addrconf_dad_start()
  trivial: usb: fix missing space typo in doc
  trivial: pci hotplug: adding __init/__exit macros to sgi_hotplug
  trivial: Remove the hyphen from git commands
  trivial: fix ETIMEOUT -> ETIMEDOUT typos
  trivial: Kconfig: .ko is normally not included in module names
  trivial: SubmittingPatches: fix typo
  trivial: Documentation/dell_rbu.txt: fix typos
  trivial: Fix Pavel's address in MAINTAINERS
  trivial: ftrace:fix description of trace directory
  trivial: unnecessary (void*) cast removal in sound/oss/msnd.c
  trivial: input/misc: Fix typo in Kconfig
  trivial: fix grammo in bus_for_each_dev() kerneldoc
  trivial: rbtree.txt: fix rb_entry() parameters in sample code
  trivial: spelling fix in ppc code comments
  trivial: fix typo in bio_alloc kernel doc
  trivial: Documentation/rbtree.txt: cleanup kerneldoc of rbtree.txt
  trivial: Miscellaneous documentation typo fixes
  trivial: fix typo milisecond/millisecond for documentation and source comments.
  ...
2009-06-14 13:46:25 -07:00
Mike Frysinger d0cb9b4ef6 Blackfin: improve CLKIN_HZ config default
Most boards use 25000000 as the default HZ, so rather than add a whole
bunch more boards, make it the default for everyone.  This also fixes
randconfig builds as there was no default before.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:16 -04:00
Mike Frysinger 1ee76d7e16 Blackfin: initial support for ftrace grapher
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:16 -04:00
Mike Frysinger 1c873be744 Blackfin: initial support for ftrace
Just the basic ftrace support here -- mcount and the ftrace stub.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:15 -04:00
Mike Frysinger 6fa68e7a7f Blackfin: enable support for LOCKDEP
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:15 -04:00
Mike Frysinger c7b412f41d Blackfin: add preliminary support for STACKTRACE
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:14 -04:00
Mike Frysinger 8f86001f76 Blackfin: add support for irqflags
This converts the irq handling in the Blackfin arch from the old irq.h /
system.h method to the new irqflags.h.  A stepping stone on the way to
other tracing functionality.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:13 -04:00
Mike Frysinger 538067c822 Blackfin: add support for bzip2/lzma compressed kernel images
Since U-Boot can support these compression types, add appropriate targets
to the Blackfin boot files.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:13 -04:00
Mike Frysinger bac7d89ebe Blackfin: convert Kconfig style to def_bool
Makes the file easier to read when there isn't so much clutter.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:12 -04:00
Mike Frysinger 70f12567ac Blackfin: add support for GENERIC_BUG
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13 07:20:07 -04:00
Pavel Machek 4737f0978d trivial: Kconfig: .ko is normally not included in module names
.ko is normally not included in Kconfig help, make it consistent.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-12 18:01:50 +02:00
Graf Yang 9b9bfded62 Blackfin: convert SMP to only use generic time framework
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12 06:11:56 -04:00
Graf Yang 5ba766752d Blackfin: work around anomaly 05000220
When possible, work around anomaly 05000220 (external memory is write
back cached, but L2 is not cached).  If not possible, detect the
conditions at build time and reject any qualifying configurations.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12 06:11:41 -04:00
Graf Yang 1fa9be72b5 Blackfin: add support for gptimer0 as a tick source
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>
2009-06-12 06:11:37 -04:00
Mike Frysinger f8b556514c Blackfin: set bf51x/bf52x to 0.0 rev by default and bf54x to 0.2
Update the default revs based on what we actually support (bf54x-0.[01]
is too broken to use).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-06-12 06:03:48 -04:00