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2009-06-23Blackfin: fix GPTMR0_CLOCKSOURCE dependency on BFIN_GPTIMERSMike Frysinger1-0/+1
The GPTMR0_CLOCKSOURCE Kconfig option requires the gptimers framework, so make sure it is selected when this option is enabled. Reported-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-23Blackfin: bf526-ezbrd: handle different SDRAM chipsGraf Yang1-1/+6
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>
2009-06-23Blackfin: decouple unrelated cache settings to get exact behaviorJie Zhang1-18/+39
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>
2009-06-23Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipelinePhilippe Gerum1-1/+0
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-23Blackfin: allow people to select BF51x-0.1 silicon revMike Frysinger1-1/+1
Now that 0.1 of the BF51x is coming out, allow people to build for it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-16Merge branch 'for-linus' of ↵Linus Torvalds1-27/+33
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 ...
2009-06-15Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
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. ...
2009-06-13Blackfin: improve CLKIN_HZ config defaultMike Frysinger1-3/+3
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>
2009-06-13Blackfin: initial support for ftrace grapherMike Frysinger1-0/+1
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13Blackfin: initial support for ftraceMike Frysinger1-0/+1
Just the basic ftrace support here -- mcount and the ftrace stub. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13Blackfin: enable support for LOCKDEPMike Frysinger1-0/+3
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13Blackfin: add preliminary support for STACKTRACEMike Frysinger1-0/+3
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13Blackfin: add support for irqflagsMike Frysinger1-0/+3
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>
2009-06-13Blackfin: add support for bzip2/lzma compressed kernel imagesMike Frysinger1-0/+3
Since U-Boot can support these compression types, add appropriate targets to the Blackfin boot files. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13Blackfin: convert Kconfig style to def_boolMike Frysinger1-24/+12
Makes the file easier to read when there isn't so much clutter. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-13Blackfin: add support for GENERIC_BUGMike Frysinger1-0/+4
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12trivial: Kconfig: .ko is normally not included in module namesPavel Machek1-1/+1
.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>
2009-06-12Blackfin: convert SMP to only use generic time frameworkGraf Yang1-0/+1
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: work around anomaly 05000220Graf Yang1-7/+17
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>
2009-06-12Blackfin: add support for gptimer0 as a tick sourceGraf Yang1-10/+22
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: set bf51x/bf52x to 0.0 rev by default and bf54x to 0.2Mike Frysinger1-2/+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>
2009-06-12Blackfin: fix link failure due to CONFIG_EXCEPTION_L1_SCRATCHGraf Yang1-1/+1
Move exception stack mess from entry.S to init.c to fix link failure when CONFIG_EXCEPTION_L1_SCRATCH is in use. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-06-12Blackfin: add some help text to the EBIU_AMBCTL settingsMike Frysinger1-4/+17
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-30trivial: fix typos/grammar errors in Kconfig textsMatt LaPlante1-3/+3
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-04Blackfin arch: Fix BUG - kernel fails to build in pm.c when allow wakeup ↵Michael Hennerich1-0/+1
fromi standby by GPIO This feature is not available on BF54x. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: PM_BFIN_WAKE_GP: update helpMichael Hennerich1-0/+6
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-02-04Blackfin arch: add support for mobile ddr bf54x partsMike Frysinger1-11/+41
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: enable reprogram cclk and sclk for bf518f-ezbrdSonic Zhang1-0/+5
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: remove hardware PM code, oprofile not use itGraf Yang1-6/+0
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: Faster C implementation of no-MPU CPLB handlerBernd Schmidt1-8/+0
This is a mixture ofcMichael McTernan's patch and the existing cplb-mpu code. We ditch the old cplb-nompu implementation, which is a good example of why a good algorithm in a HLL is preferrable to a bad algorithm written in assembly. Rather than try to construct a table of all posible CPLBs and search it, we just create a (smaller) table of memory regions and their attributes. Some of the data structures are now unified for both the mpu and nompu cases. A lot of needless complexity in cplbinit.c is removed. Further optimizations: * compile cplbmgr.c with a lot of -ffixed-reg options, and omit saving these registers on the stack when entering a CPLB exception. * lose cli/nop/nop/sti sequences for some workarounds - these don't * make sense in an exception context Additional code unification should be possible after this. [Mike Frysinger <vapier.adi@gmail.com>: - convert CPP if statements to C if statements - remove redundant statements - use a do...while loop rather than a for loop to get slightly better optimization and to avoid gcc "may be used uninitialized" warnings ... we know that the [id]cplb_nr_bounds variables will never be 0, so this is OK - the no-mpu code was the last user of MAX_MEM_SIZE and with that rewritten, we can punt it - add some BUG_ON() checks to make sure we dont overflow the small cplb_bounds array - add i/d cplb entries for the bootrom because there is functions/data in there we want to access - we do not need a NULL trailing entry as any time we access the bounds arrays, we use the nr_bounds variable ] Signed-off-by: Michael McTernan <mmcternan@airvana.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: fix bug - kernel build fails with undefined reference to ↵Michael Hennerich1-1/+1
pm_overflow_handler Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: get oprofile work for user spaceGraf Yang1-4/+6
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: fix bugs and unify BFIN_KERNEL_CLOCK optionMichael Hennerich1-2/+57
- remove duplicated code and headers - add option allowing arbitrary SDRAM/DDR Timing parameters. - mark automatically calculated timings as EXPERIMENTAL - fix comment header block Related to BUGs: - kernel boot up fails with CONFIG_BFIN_KERNEL_CLOCK item on. - kernel does not boot if re-program clocks [ Mike Frysinger <vapier.adi@gmail.com> - fix comment header - mark do_sync static - document the DMA shutdown - simplify SIC_IWR handling - fix ANOMALY_05000265 handling to work as intended ] Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: do not allow L2 to be cached on BF561 SMPMike Frysinger1-1/+1
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: make ROM_BASE depend on ROMKERNELMike Frysinger1-0/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: remove BFIN_DMA_5XX optionMike Frysinger1-7/+0
Do not make BFIN_DMA_5XX optional since a large portion of our code relies on dma functions existing Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: Fix BUG - Kernel does not link when CONFIG_CPU_FREQ_STAT=mMichael Hennerich1-0/+6
to reproduce: $ make BF537-STAMP_defconfig $ make menuconfig CPU Frequency scaling ---> [*] CPU Frequency scaling <M> CPU frequency translation statistics $ make arch/blackfin/mach-common/built-in.o: In function `bfin_target': arch/blackfin/mach-common/cpufreq.c:(.text+0xf1e): undefined reference to `cpufreq_frequency_table_target' arch/blackfin/mach-common/built-in.o: In function `bfin_verify_speed': arch/blackfin/mach-common/cpufreq.c:(.text+0x1056): undefined reference to `cpufreq_frequency_table_verify' arch/blackfin/mach-common/built-in.o: In function `__bfin_cpu_init': arch/blackfin/mach-common/cpufreq.c:(.init.text+0x554): undefined reference to `cpufreq_frequency_table_get_attr' arch/blackfin/mach-common/cpufreq.c:(.init.text+0x56a): undefined reference to `cpufreq_frequency_table_cpuinfo' arch/blackfin/mach-common/built-in.o: In function `sys_call_table': (.data+0x83c): undefined reference to `cpufreq_freq_attr_scaling_available_freqs' make: *** [.tmp_vmlinux1] Error 1 Blackfin wants CPU_FREQ_TABLE Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: set PM_WAKEUP_GPIO_NUMBER default to 2 for everyoneMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: SMP supporting patchset: some other misc codeGraf Yang1-2/+31
Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to some other misc code Singed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: Convert Blackfin GPIO driver to use common gpiolib/gpiochip ↵Michael Hennerich1-0/+1
infrastructure - This patch adds support for ARCH_WANT_OPTIONAL_GPIOLIB. - It may be changed in future to ARCH_REQUIRE_GPIOLIB. - Change GPIO_BANK_NUM use DIV_ROUND_UP( , ) macro Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: add support for Blackfin latest processor family BF51xBryan Wu1-9/+39
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: drop redundant BFIN_DMA_5XX dependsMike Frysinger1-3/+2
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28Blackfin arch: add an option to allow people to stick exception stack into ↵Mike Frysinger1-0/+11
L1 scratch allow people to stick exception stack into L1 scratch and make sure it gets placed into .bss sections rather than .data Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18Blackfin arch: BF538/9 Linux kernel SupportMichael Hennerich1-7/+19
Add supporing for Blackfin BF538 and BF539 processors. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-20container freezer: implement freezer cgroup subsystemMatt Helsley1-0/+3
This patch implements a new freezer subsystem in the control groups framework. It provides a way to stop and resume execution of all tasks in a cgroup by writing in the cgroup filesystem. The freezer subsystem in the container filesystem defines a file named freezer.state. Writing "FROZEN" to the state file will freeze all tasks in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in the cgroup. Reading will return the current state. * Examples of usage : # mkdir /containers/freezer # mount -t cgroup -ofreezer freezer /containers # mkdir /containers/0 # echo $some_pid > /containers/0/tasks to get status of the freezer subsystem : # cat /containers/0/freezer.state RUNNING to freeze all tasks in the container : # echo FROZEN > /containers/0/freezer.state # cat /containers/0/freezer.state FREEZING # cat /containers/0/freezer.state FROZEN to unfreeze all tasks in the container : # echo RUNNING > /containers/0/freezer.state # cat /containers/0/freezer.state RUNNING This is the basic mechanism which should do the right thing for user space task in a simple scenario. It's important to note that freezing can be incomplete. In that case we return EBUSY. This means that some tasks in the cgroup are busy doing something that prevents us from completely freezing the cgroup at this time. After EBUSY, the cgroup will remain partially frozen -- reflected by freezer.state reporting "FREEZING" when read. The state will remain "FREEZING" until one of these things happens: 1) Userspace cancels the freezing operation by writing "RUNNING" to the freezer.state file 2) Userspace retries the freezing operation by writing "FROZEN" to the freezer.state file (writing "FREEZING" is not legal and returns EIO) 3) The tasks that blocked the cgroup from entering the "FROZEN" state disappear from the cgroup's set of tasks. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: export thaw_process] Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Tested-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-09Blackfin arch: Move all the silicon rev handling to one placeMike Frysinger1-0/+13
Move all the silicon rev handling to one place (Kconfig) and make sure we warn if you are running on silicon that has not been tested on Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-09Blackfin arch: Make L2 SRAM cacheableSonic Zhang1-0/+7
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-09Blackfin arch: add support for BF52x-0.2, BF533-0.6, and BF54x-0.2Mike Frysinger1-1/+5
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-09Blackfin arch: fix default silicon rev selection so it works for all ↵Mike Frysinger1-4/+3
supported parts Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-09Blackfin arch: BF561 is supported, no longer a work in progressMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
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