27 May, 2008
1 commit
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Move the AP7 cpufreq init to late_initcall() so that we don't try to
bring up cpufreq until the governor is ready. x86 also uses
late_initcall() for this.Signed-off-by: Haavard Skinnemoen
26 May, 2008
3 commits
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Just provide reasonable defaults for the new stuff. Tickless and
hrtimers are turned on for all boards except ATSTK1004.Signed-off-by: Haavard Skinnemoen
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This patch fixes the following build error:
...
MODPOST 1327 modules
ERROR: "strnlen_user" [drivers/input/misc/uinput.ko] undefined!
...
make[2]: *** [__modpost] Error 1Reported-by: Adrian Bunk
Signed-off-by: Adrian Bunk
Signed-off-by: Haavard Skinnemoen -
This patch fixes the following build error:
...
MODPOST 61 modules
ERROR: "copy_page" [fs/fuse/fuse.ko] undefined!
...
make[2]: *** [__modpost] Error 1Also add an empty line since *_page aren't "String functions".
Signed-off-by: Adrian Bunk
Signed-off-by: Haavard Skinnemoen
17 May, 2008
1 commit
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Signed-off-by: Al Viro
04 May, 2008
1 commit
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This replaces the duplicated arch-specific versions of "sys_pipe()" with
one unified implementation. This removes almost 250 lines of duplicated
code.It's marked __weak, so that *if* an architecture wants to override the
default implementation it can do so by simply having its own replacement
version, since many architectures use alternate calling conventions for
the 'pipe()' system call for legacy reasons (ie traditional UNIX
implementations often return the two file descriptors in registers)I still haven't changed the cris version even though Linus says the BKL
isn't needed. The arch maintainer can easily do it if there are really
no obstacles.Signed-off-by: Ulrich Drepper
Signed-off-by: Linus Torvalds
29 Apr, 2008
2 commits
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Signed-off-by: Christoph Lameter
Cc: Haavard Skinnemoen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.Signed-off-by: Denis V. Lunev
Cc: Haavard Skinnemoen
Cc: Alexey Dobriyan
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Apr, 2008
1 commit
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If the user specified a fixed framebuffer address on the command line, it may
have been initialized already with a splash image or something, so we
shouldn't clear it.Therefore, we should only initialize the framebuffer if we allocated it
ourselves. This patch also updates the AVR32 setup code to clear the
framebuffer if it allocated it itself, i.e. the user didn't provide a fixed
address or the reservation failed.I've updated the at91 platform code as well so that it initializes the
framebuffer if it is located in SRAM, but I haven't tested that it actually
works.Signed-off-by: Haavard Skinnemoen
Cc: "Antonino A. Daplas"
Cc: Nicolas FERRE
Cc: Andrew Victor
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Apr, 2008
9 commits
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This patch adds in the indirect call to pm_power_off(), as is done in
other architectures (e.g. ARM).Tested on NGW100, with custom board with GPIO control over main DC
power.Signed-off-by: Peter Ma
Signed-off-by: Haavard Skinnemoen -
Signed-off-by: Johannes Weiner
Signed-off-by: Haavard Skinnemoen -
This patch is a take two of adding full functionality to PLL1 on
AT32AP7000. This allows board-specific code and drivers to configure
and enable PLL1. This is useful when precise control over the
frequency of e.g. a genclock is needed and requested by users for the
ABDAC device.The patch is based upon previous patches from both Haavard Skinnemoen
and David Brownell.Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen -
This combines three patches from David Brownell:
* avr32: tclib support
* avr32: simplify clocksources
* avr32: Turn count/compare into a oneshot clockevent deviceRegister both TC blocks (instead of just the first one) so that
the AT32/AT91 tclib code will pick them up (instead of just the
avr32-only PIT-style clocksource).Rename the first one and its resources appropriately.
More cleanups to the cycle counter clocksource code
- Disable all the weak symbol magic; remove the AVR32-only TCB-based
clocksource code (source and header).- Mark the __init code properly.
- Don't forget to report IRQF_TIMER.
- Make the system work properly with this clocksource, by preventing
use of the CPU "idle" sleep state in the idle loop when it's used.Package the avr32 count/compare timekeeping support as a oneshot
clockevent device, so it supports NO_HZ and high res timers.
This means it also supports plugging in other clockevent devices
and clocksources.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
Create a new file, pm-at32ap700x.S, in mach-at32ap and move the CPU
idle sleep code there. Make it possible to disable the sleep code.Signed-off-by: Haavard Skinnemoen
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Move the only thing that was actually implemented and used in
asm/intc.h, intc_get_pending(), into asm/irq.h and delete asm/intc.hSigned-off-by: Haavard Skinnemoen
-
Start cleaning up the AVR32 clocksource mess, starting with the cycle
counter clocksource: remove unneeded pseudo-RTC (just inline that
call to mktime) and associated build warning, and unused sysdev.Add comment about the problem using the cycle counter register,
and adjust the clocksource rating accordingly. Later patches can
make this usable again (by disabling use of the idle state and
providing a proper clocksource without the weak binding hacks)
and move towards TCB-based clockevent support (including high
resolution timers) that's shared between AT91 and AVR32.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
New-style I2C drivers require that motherboard-mounted I2C devices are
registered with the I2C core, typically at arch_initcall time. This
can be done nice and neat by passing the struct i2c_board_info[]
through at32_add_device_twi just like we do for the SPI board info.While we've got the hood up, remove a duplicate declaration of
at32_add_device_twi() in board.h.[hskinnemoen@atmel.com: add missing i2c_board_info forward-declaration]
Signed-Off-By: Ben Nizette
Signed-off-by: Haavard Skinnemoen -
…en/usba-2.6.26 into base
17 Apr, 2008
2 commits
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Semaphores are no longer performance-critical, so a generic C
implementation is better for maintainability, debuggability and
extensibility. Thanks to Peter Zijlstra for fixing the lockdep
warning. Thanks to Harvey Harrison for pointing out that the
unlikely() was unnecessary.Signed-off-by: Matthew Wilcox
Acked-by: Ingo Molnar -
There's a libata based PATA driver for avr32, but no support for
drivers/ide/ on avr32.This patch fixes the following compile error:
...
CC [M] drivers/ide/ide-cd.o
In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/ide/ide-cd.c:37:
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/ide.h:209:21: error: asm/ide.h: No such file or directory
make[3]: *** [drivers/ide/ide-cd.o] Error 1Signed-off-by: Adrian Bunk
Cc: Haavard Skinnemoen
Acked-by: Sam Ravnborg
Signed-off-by: Bartlomiej Zolnierkiewicz
07 Apr, 2008
1 commit
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The atmel_usba_udc driver is being used by several platforms and arches
(avr32 and at91 ATM), and each platform may have different endpoint
settings.The patch below moves the endpoint declarations into the platform
data and make the necessary adjustments for AVR32 (improved by
Haavard Skinnemoen ).Signed-off-by: Stelian Pop
Acked-by: David Brownell
Signed-off-by: Haavard Skinnemoen
27 Mar, 2008
1 commit
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add_reserved_region() tries to keep the resource list sorted, so when
looking for a place to insert the new resource, it may break out
before the last entry.When this happens, the list is broken in two because the sibling field
of the new entry doesn't point to the next resource. Fix it by
updating the new resource's sibling field appropriately.Signed-off-by: Haavard Skinnemoen
14 Mar, 2008
1 commit
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Don't include the BUG trap handling code when CONFIG_BUG is not set.
This fixes allnoconfig.Signed-off-by: Haavard Skinnemoen
27 Feb, 2008
1 commit
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Iff the parent has TIF_DEBUG set, _and_ clone_flags includes
CLONE_PTRACE we should set the TIF_DEBUG flag for the child and
increment the ocd refcount. Otherwise, the TIF_DEBUG flag must be
unset.Currently, the child inherits TIF_DEBUG from the parent before
copy_thread is called, so TIF_DEBUG may be already be set before we
determine whether the child is supposed to inherit debugging
capabilities from the parent or not. This means that ocd_enable()
won't increment the refcount, because TIF_DEBUG is already set, and
that TIF_DEBUG will be set for processes that aren't being debugged.This leads to a refcounting asymmetry, which may show up as
------------[ cut here ]------------
Badness at arch/avr32/kernel/ocd.c:73
PC is at ocd_disable+0x34/0x60
LR is at put_lock_stats+0xa/0x20as reported by David Brownell. Happens when strace'ing a process that
forks a new child process, e.g. "strace mount -tjffs2 mtd1 /mnt", and
subsequently killing the child process (e.g. "umount /mnt".)Signed-off-by: Haavard Skinnemoen
15 Feb, 2008
1 commit
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This fixes a hang on boot with nohz enabled. nohz is not actually
supported in mainline yet, but patches that add support for it are
currently under review.When nohz is compiled out, the functions are no-ops, so this patch
results in no functional change, but it arguably makes the code more
correct.Signed-off-by: Haavard Skinnemoen
13 Feb, 2008
2 commits
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CONFIG_BOARD_ATSTK1002_SW2_CUSTOM should be
CONFIG_BOARD_ATSTK100X_SW2_CUSTOM.Spotted by Robert P. J. Day.
Signed-off-by: Haavard Skinnemoen
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The per-task page tables only cover the first 2GiB of the address
space. For kernel addresses, we need to do the lookup in init's page
tables.This is a temporary workaround until we modify the per-task page
tables to cover the whole 4GiB address space.Signed-off-by: Haavard Skinnemoen
09 Feb, 2008
3 commits
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To allow flexible configuration of IDE introduce HAVE_IDE.
All archs except arm, um and s390 unconditionally select it.
For arm the actual configuration determine if IDE is supported.This is a step towards introducing drivers/Kconfig for arm.
Signed-off-by: Sam Ravnborg
Acked-by: Russell King - ARM Linux
Acked-by: Bartlomiej Zolnierkiewicz -
PWM device setup, and a simple PWM driver exposing a programming interface
giving access to each channel's full capabilities. Note that this doesn't
support starting several channels in synch.[hskinnemoen@atmel.com: allocate platform device dynamically]
[hskinnemoen@atmel.com: Kconfig fix]
Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen
Cc: Andrew Victor
Cc: Nicolas Ferre
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Sometimes simple attributes might need to return an error, e.g. for
acquiring a mutex interruptibly. In fact we have that situation in
spufs already which is the original user of the simple attributes. This
patch merged the temporarily forked attributes in spufs back into the
main ones and allows to return errors.[akpm@linux-foundation.org: build fix]
Signed-off-by: Christoph Hellwig
Cc:
Cc: Arnd Bergmann
Cc: Greg KH
Cc: Al Viro
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Feb, 2008
1 commit
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This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.This patch:
Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past. This is to avoid conflicts.Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle
Cc:
Cc: "Eric W. Biederman"
Cc: Vivek Goyal
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Feb, 2008
1 commit
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- All implementations can be __devinit
- The function prototypes were in asm/timex.h but they all must be the same,
so create a single declaration in linux/timex.h.- uninline the sparc64 version to match the other architectures
- Don't bother #defining ARCH_HAS_READ_CURRENT_TIMER to a particular value.
[ezk@cs.sunysb.edu: fix build]
Cc: "David S. Miller"
Cc: Haavard Skinnemoen
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Feb, 2008
2 commits
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Hmm. Someone removed the timerfd() syscall...
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Teach AVR32 to use the "GPIO Library" when exposing its GPIOs, so that signals
on external chips (like GPIO expanders) can easily be used.This mostly reorganizes some existing logic, with two minor changes in
behavior:- The PSR registers are used instead of the previous "gpio_mask" values,
matching AT91 behavior and removing some duplication between that role
and that of "pinmux_mask".- NR_IRQs grew to acommodate a bank of external GPIOs. Eventually this
number should probably become a board-specific config option.There's a debugfs dump of status for the built-in GPIOs, showing which pins
have deglitching, pullups, or open drain drive enabled, as well as the ID
string used when requesting each IRQ.Signed-off-by: David Brownell
Acked-by: Haavard Skinnemoen
Cc: Jean Delvare
Cc: Eric Miao
Cc: Sam Ravnborg
Cc: Philipp Zabel
Cc: Russell King
Cc: Ben Gardner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Feb, 2008
1 commit
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AVR32 still includes Kconfig.instrumentation, so it won't build after
this...Signed-off-by: Haavard Skinnemoen
Acked-by: Mathieu Desnoyers
Signed-off-by: Linus Torvalds
03 Feb, 2008
2 commits
-
Linus:
On the per-architecture side, I do think it would be better to *not* have
internal architecture knowledge in a generic file, and as such a line likedepends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32
really shouldn't exist in a file like kernel/Kconfig.instrumentation.
It would be much better to do
depends on ARCH_SUPPORTS_KPROBES
in that generic file, and then architectures that do support it would just
have abool ARCH_SUPPORTS_KPROBES
default yin *their* architecture files. That would seem to be much more logical,
and is readable both for arch maintainers *and* for people who have no
clue - and don't care - about which architecture is supposed to support
which interface...Changelog:
Actually, I know I gave this as the magic incantation, but now that I see
it, I realize that I should have told you to just useconfig KPROBES_SUPPORT
def_bool yinstead, which is a bit denser.
We seem to use both kinds of syntax for these things, but this is really
what "def_bool" is there for...- Use HAVE_KPROBES
- Use a select- Yet another update :
Moving to HAVE_* now.- Update ARM for kprobes support.
Signed-off-by: Mathieu Desnoyers
Cc: Jeff Dike
Cc: David Howells
Cc: Ananth N Mavinakayanahalli
Signed-off-by: Sam Ravnborg -
Linus:
On the per-architecture side, I do think it would be better to *not* have
internal architecture knowledge in a generic file, and as such a line likedepends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32
really shouldn't exist in a file like kernel/Kconfig.instrumentation.
It would be much better to do
depends on ARCH_SUPPORTS_KPROBES
in that generic file, and then architectures that do support it would just
have abool ARCH_SUPPORTS_KPROBES
default yin *their* architecture files. That would seem to be much more logical,
and is readable both for arch maintainers *and* for people who have no
clue - and don't care - about which architecture is supposed to support
which interface...Changelog:
Actually, I know I gave this as the magic incantation, but now that I see
it, I realize that I should have told you to just useconfig ARCH_SUPPORTS_KPROBES
def_bool yinstead, which is a bit denser.
We seem to use both kinds of syntax for these things, but this is really
what "def_bool" is there for...Changelog :
- Moving to HAVE_*.
- Add AVR32 oprofile.Signed-off-by: Mathieu Desnoyers
Cc: Andrew Morton
Cc: Haavard Skinnemoen
Cc: David Howells
Cc: Jeff Dike
Cc: Ananth N Mavinakayanahalli
Signed-off-by: Sam Ravnborg
29 Jan, 2008
1 commit
-
This patch consolidate all definitions of .init.text, .init.data
and .exit.text, .exit.data section definitions in
the generic vmlinux.lds.h.This is a preparational patch - alone it does not buy
us much good.Signed-off-by: Sam Ravnborg
26 Jan, 2008
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
[AVR32] extint: Set initial irq type to low level
[AVR32] extint: change set_irq_type() handling
[AVR32] NMI debugging
[AVR32] constify function pointer tables
[AVR32] ATNGW100: Update defconfig
[AVR32] ATSTK1002: Update defconfig
[AVR32] Kconfig: Choose daughterboard instead of CPU
[AVR32] Add support for ATSTK1003 and ATSTK1004
[AVR32] Clean up external DAC setup code
[AVR32] ATSTK1000: Move gpio-leds setup to setup.c
[AVR32] Add support for AT32AP7001 and AT32AP7002
[AVR32] Provide more CPU information in /proc/cpuinfo and dmesg
[AVR32] Oprofile support
[AVR32] Include instrumentation menu
Disable VGA text console for AVR32 architecture
[AVR32] Enable debugging only when needed
ptrace: Call arch_ptrace_attach() when request=PTRACE_TRACEME
[AVR32] Remove redundant try_to_freeze() call from do_signal()
[AVR32] Drop GFP_COMP for DMA memory allocations
25 Jan, 2008
1 commit
-
David Brownell pointed out a mismatch in the avr32 extint code:
> I noticed a small glitch that's not fixed by this patch: the
> initial type is falling edge, but IRQ_TYPE_NONE is mapped to
> IRQ_TYPE_LEVEL_LOW. Potentially surprising.Fix it by setting the initial type (and handler) to low level,
matching the meaning of IRQ_TYPE_NONE.Signed-off-by: Haavard Skinnemoen