Commit Graph

229094 Commits

Author SHA1 Message Date
Sonic Zhang
d57bc0feaa Blackfin: bf518f-ezbrd: fix dsa resources
On bf518-ezbrd with DSA Ethernet switch enabled, on chip MAC is
connecting to phy at address 3.  If allowing the netdevice framework to
probe both 3 phys of the switch when registering MAC phy, phy at address
1 is checked for link active status other than phy at address 3.  If
connecting a cable to port 2 and leave port 1 open, link status in phy
2 and 3 are online, while that in phy 1 is offline.  So, the phy layer
sets wrong offline status to net device on port 3.  In this case, no data
can be transferred via ethernet port 2.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:24 -05:00
Mike Frysinger
874f6cfd3a Blackfin: move "-m elf32bfin" to general LDFLAGS
Common code now invokes the linker directly which causes build failures
when using an FDPIC toolchain.  So move the emulation setting out of the
module-specific LDFLAGS and into the common LDFLAGS.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:24 -05:00
Vivi Li
9fc205283f Blackfin: kgdb_test: make sure to initialize num2
We check its value at runtime, so we want to avoid garbage across runs.

Signed-off-by: Vivi Li <vivi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:23 -05:00
Sonic Zhang
b68233e7f0 Blackfin: kgdb: disable preempt schedule when running single step in kgdb
Otherwise, gdb continue operation after a breakpoint is hit may trap
into endless breakpoint.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:23 -05:00
Sonic Zhang
900de05182 Blackfin: kgdb: disable interrupt when single stepping in ADEOS
When ADEOS and kgdb are both enabled, single step in linux kernel may be
scheduled to Xenomai core after return from interrupt handlers.  This
blocks gdb continue operation after a break point is hit.  So, disable
interrupt when running gdb single step.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:22 -05:00
Sonic Zhang
84e97c1014 Blackfin: SMP: kgdb: apply anomaly 257 work around
When run kgdb testing, it looks like coreb hangs in single step or trap
exception without handling anomaly 05000257 properly on bf561 v0.5.  But,
the anomaly list says it apply to bf561 v0.4 and bellow.  Apply its work
around to 0.5 temporarily until the behavior and the root cause can be
confirmed by the hardware team.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:22 -05:00
Mike Frysinger
503f3d30c6 Blackfin: fix building IPIPE code when XIP is enabled
The low level assembly needs to use the pseudo_long_call helper so that
we use the right call insn when doing kernel XIP.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:21 -05:00
Sonic Zhang
064cc44e62 Blackfin: SMP: kgdb: flush core internal write buffer before flushinv
KGDB single step in SMP kernel may hang forever in flushinv without a
CSYNC ahead.  This is because the core internal write buffers need to
be flushed before invalidating the data cache to make sure the insn
fetch is not out of sync.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:21 -05:00
Sonic Zhang
e54b673081 Blackfin: sport_uart resources: remove unused secondary RX/TX pins
The SPORT/UART driver doesn't use the secondary channel pins, so don't
try and request them thus keeping other drivers from using them.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:20 -05:00
Stefan Weil
e01b5b1296 Blackfin: tll6527m: fix spelling in unused code (struct name)
platfrom -> platform

This changes a struct name. The related code is conditionally
compiled and won't work because the include file linux/gpio-decoder.h
is missing, so removing this code would be an even better solution.

If the missing include file is added, it must fix the spelling, too.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:20 -05:00
Sonic Zhang
624fab3bcd Blackfin: bf527-ezkit: add adau1373 chip address
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:19 -05:00
Sonic Zhang
398834330c Blackfin: no-mpu: fix masking of small uncached dma region
When using an uncached DMA region less than 1 MiB, we try to mask off
the whole last 1 MiB for it.  Unfortunately, this fails as we forgot
to subtract one from the calculated mask, leading to the region still
be marked as cacheable.

Reported-by: Andrew Rook <andrew.rook@speakerbus.co.uk>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:18 -05:00
Steven Miao
36e11ab23e Blackfin: pm: drop irq save/restore in standby and suspend to mem callback
Since linux-2.6.31, the kernel suspend framework will do disable_irq/enable_irq,
so save/restore irq in standby and suspend to mem callback should be dropped.
Otherwise the common code notices things are enabled and complains.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:18 -05:00
Michael Hennerich
527a1a83cc MAINTAINERS: update Analog Devices support info
Add more Analog Devices driver entries and refine the differences between
Blackfin-specific code and processor independent drivers.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:17 -05:00
Mike Frysinger
e15124c14c Blackfin: dpmc.h: pull in new pll.h
Any consumer of dpmc.h expects to use VR_CTL, so also pull in the new
mach/pll.h header for those functions.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:17 -05:00
Mike Frysinger
77c90e3d35 Blackfin: bf54x: add MMR layout for PINT
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:17 -05:00
Mike Frysinger
ec5109e7ca Blackfin: bf561: SMP: add multicore pll handlers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:16 -05:00
Mike Frysinger
10cdc1a78a Blackfin: unify pll.h headers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:16 -05:00
Yi Li
73a400646b Blackfin: SMP: rewrite IPI handling to avoid memory allocation
Currently, sending an interprocessor interrupt (IPI) requires building up
a message dynamically which means memory allocation.  But often times, we
will want to send an IPI in low level contexts where allocation is not
possible which may lead to a panic().  So create a per-cpu static array
for the message queue and use that instead.

Further, while we have two supplemental interrupts, we are currently only
using one of them.  So use the second one for the most common IPI message
of all -- smp_send_reschedule().  This avoids ugly contention for locks
which in turn would require an IPI message ...

In general, this improves SMP performance, and in some cases allows the
SMP port to work in places it wouldn't before.  Such as the PREEMPT_RT
state where the slab is protected by a per-cpu spin lock.  If the slab
kmalloc/kfree were to put the task to sleep, and that task was actually
the IPI handler, then the system falls down yet again.

After running some various stress tests on the system, the static limit
of 5 messages seems to work.  On the off chance even this overflows, we
simply panic(), and we can review that scenario to see if the limit needs
to be increased a bit more.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:15 -05:00
Graf Yang
2c1657c29f Blackfin: SMP: relocate blackfin_core_id() definition
Since we're breaking apart some inter-header dependencies to avoid more
circular loops, move the blackfin_core_id() definition to the func that
it is based upon.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:15 -05:00
Mike Frysinger
05c3457ec2 Blackfin: SMP: fix build breakage in cache.h
The SMP code needs "asmlinkage" which linkage.h provides.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:14 -05:00
Graf Yang
54d756ed1a Blackfin: SMP: add missing arch_{read,write}_lock_flags helpers
Common code expects these to be defined for SMP ports, so add them.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:14 -05:00
Graf Yang
49fcc7b16f Blackfin: bf561: fix mem_map.h SMP overrides
The BF561 mem_map.h header has the __ASSEMBLY__/CONFIG_SMP checks out
of order which leads to build errors for assembly code that happens to
include this file.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:13 -05:00
Graf Yang
75734e6606 Blackfin: SMP: tweak platform_request_ipi() usage
This function takes an irq_handler_t function, but the prototype in
the header doesn't match the function definition.  This is due to the
smp headers needing to avoid circular dependencies.  So change the
function to take a simple pointer.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:13 -05:00
Mike Frysinger
71a516adb6 Blackfin: SMP: fix asm/bitops.h errors
The common asm-generic non-atomic bitops.h defines test_bit() for us, but
we need to use our own version.  So redirect the definition of this func
to avoid having to inline the rest of the asm-generic file.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:12 -05:00
Graf Yang
9c199b5965 Blackfin: SMP: fix cpumask misbehavior
The cpu maps are defines provided by common linux/cpumask.h, not local
variables.  So stop exporting them locally and include the right header
for their definition.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:12 -05:00
Graf Yang
71a66287d9 Blackfin: SMP: rename the arch_xxx lock funcs to __raw_xxx
The external functions are named __raw_xxx, not arch_xxx, so rename the
prototypes to match reality.  This fixes some simple build errors in the
bfin_ksyms.c code which exports these helpers to modules.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:11 -05:00
Sonic Zhang
57afb39935 serial: bfin_5xx: move resources into board files
Rather than maintain Kconfig entries where people have to enter raw
numbers and hardcode lists of addresses/pins in the driver itself,
push it all to platform resources.  This lets us simplify the driver,
the Kconfig, and gives board porters greater flexibility.

In the process, we need to also start supporting the early platform
interface.  Not a big deal, but it causes the patch to be bigger than
a simple resource relocation.

All the Blackfin boards already have their resources updated and in
place for this change.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:11 -05:00
Mike Frysinger
94a038c2e6 Blackfin: bf561: update a few more SIC_SYSCR locations
Looks like I missed a few new spots when renaming the SICA macros.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:10 -05:00
Mike Frysinger
a2ce077ab3 Blackfin: drop asm/irq.h include from mach headers
These were only included because of the irq handling of the PLL funcs,
and those PLL funcs have been moved out into their own header now.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:10 -05:00
Mike Frysinger
53ee582654 Blackfin: bf51x/bf52x: drop redundant "base" def/cdef header
The defBF512.h header exists only to include defBF51x_base.h, and it is
the only place where defBF51x_base.h is included.  So move the contents
of the defBF51x_base.h header into the defBF512.h header.

Same situation for the other def/cdef pairs.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:09 -05:00
Mike Frysinger
1a5c226528 Blackfin: clean up mach header includes
The main asm/blackfin.h header will pull in mach/blackfin.h to get
all the fun Blackfin defines.  So having any of the sub-mach headers
trying to include asm/blackfin.h makes no sense -- punt it.

The mach/blackfin.h header takes care of including the part-specific
def headers which in turn will include any other needed def file.
Similarly, it takes care of pulling in the part-specific cdef header.
So move this logic out of the blackfin.h when necessary.

Further, make sure the cdef headers do not waste time including the
def headers again.

Since all parts need the common def/cdef headers, move this logic
out of the part-specific headers and into the mach/blackfin.h file.

Finally, we need to split the BF539 def header since the BF538 does
not have MXVR and we don't want to expose those MMRs.

So now all parts should have the same behavior:
	mach/blackfin.h
		asm/def_LPBlackfin.h
		part-specific def.h
		if ! asm
			asm/cdef_LPBlackfin.h
			part-specific cdef.h
And the sub def/cdef headers only tail into what they need.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:08 -05:00
Mike Frysinger
51946b10cf Blackfin: bf533: merge fio_flag back into normal mach headers
We don't want the BF533 to be different in terms of its MMR headers, so
merge the FIO_FLAG helpers back into the normal place.  To avoid circular
dependencies with headers, turn the inline C funcs into CPP defines.  Not
like there will be any code size differences.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:08 -05:00
Mike Frysinger
c31b3f7385 Blackfin: bf561-ezkit: add SMP defconfig
Since the SMP code paths tend to compile fail a lot, start a SMP defconfig
so our nightly build tools will automatically test it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:07 -05:00
Mike Frysinger
30e9b95a82 Blackfin: bf533: convert boards to gpio framework
We don't want people banging on MMRs directly.  As for the ip0x board,
it shouldn't need to muck with the CS pin directly as the Blackfin SPI
bus master driver takes care of driving this.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:07 -05:00
Mike Frysinger
4de2bf8786 Blackfin: push gpio (port) defines into common headers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:06 -05:00
Mike Frysinger
9887f41533 Blackfin: bf54x: drop unused legacy MMR names
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:06 -05:00
Mike Frysinger
5e3bcf30d6 Blackfin: dma: constify MMR pointer array
The array of pointers is never written, so constify it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:05 -05:00
Mike Frysinger
9346dba556 Blackfin: standardize DMAC traffic control MMRs & MDMA MMRs
Use the same naming convention for DMA traffic MMRs (most were legacy
anyways) so we can avoid useless ifdef trees.

Same goes for MDMA names -- this actually allows us to undo a bunch of
ifdef redirects that existed for this purpose alone.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:05 -05:00
Mike Frysinger
6c8e75a06c Blackfin: bfin_dma.h: start a header for DMA MMR layout
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:04 -05:00
Mike Frysinger
cfbf1677a3 Blackfin: switch to asm-generic/io.h
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:04 -05:00
Mike Frysinger
efb2d31c1c asm-generic/io.h: add reads[bwl]/writes[bwl] helpers
A bunch of arches define reads[bwl]/writes[bwl] helpers for accessing
memory mapped registers.  Since the Blackfin ones aren't specific to
Blackfin code, move them to the common asm-generic/io.h for people.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:03 -05:00
Mike Frysinger
21aa8ec362 net/irda: bfin_sir: back out transitional defines
Now that the common header is sane, we can drop the transitional cruft.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:03 -05:00
Mike Frysinger
b1524e29e3 Blackfin: bfin_serial.h: unify heavily duplicated serial code
Each Blackfin port has been duplicating UART structures and defines when
there really is no need for it.  So start a new bfin_serial.h header to
unify all these pieces and give ourselves a fresh start.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:02 -05:00
Mike Frysinger
709465d6ea net/irda: bfin_sir: pull in serial headers for defines
We're in the process of cleaning up the global Blackfin namespace, so the
bfin_sir driver needs to pull in the serial header explicitly now.

This does add a little transitional cruft to keep things compiling, but a
follow up patch in this series will cull that.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:02 -05:00
Bob Liu
759a3f3f31 Blackfin: musb-boards: push clkin value to platform resources
In order to not touch the driver file for different xtal usage,
push the clkin value to board file and calculate the register
value instead of hardcoding it.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:10:13 -05:00
Graf Yang
1a314ad4b0 Blackfin: SMP: fix hotplug building after irq header shuffle
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:10:13 -05:00
Pierre Tardy
4aed89d6b5 x86, lapic-timer: Increase the max_delta to 31 bits
Latest atom socs(penwell) does not have hpet timer.

As their local APIC timer is clocked at 400KHZ, and the current
code limit their Initial Counter register to 23 bits, they
cannot sleep more than 1.34 seconds which leads to ~2 spurious
wakeup per second (1 per thread)

These SOCs support 32bit timer so we change the max_delta to at
least 31bits. So we can at least sleep for 300 seconds.

We could not find any previous chip errata where lapic would
only have 23 bit precision As powertop is suggesting to activate
HPET to "sleep longer", this could mean this problem is already
known.

Problem is here since very first implementation of lapic timer
as a clock event e9e2cdb [PATCH] clockevents: i386 drivers.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Pierre Tardy <pierre.tardy@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andi Kleen <ak@suse.de>
LKML-Reference: <1294327409-19426-1-git-send-email-pierre.tardy@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-10 09:36:49 +01:00
Ingo Molnar
9adcc4a127 Merge branch 'x86/numa' into x86/urgent
Merge reason: Topic is ready for upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-10 09:36:07 +01:00
Ingo Molnar
30285c6f03 Merge branch 'x86/apic-cleanups' into x86/urgent
Merge reason: Topic is ready for upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-10 09:34:50 +01:00