Commit graph

183 commits

Author SHA1 Message Date
Mike Frysinger
a8b1988609 Blackfin: boards: add missing "static" to peripheral lists
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-01-10 07:18:25 -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
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
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
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
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
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
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
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
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
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
Linus Torvalds
7f38839628 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: (47 commits)
  Blackfin: bfin_spi.h: add MMR peripheral layout
  Blackfin: bfin_ppi.h: start a common PPI/EPPI header
  Blackfin: bfin_can.h: add missing VERSION/VERSION2 MMRs
  Blackfin: bf538: add missing SIC_RVECT define
  Blackfin: bf561: rewrite SICA_xxx to just SIC_xxx
  Blackfin: bf54x: add missing SIC_RVECT definition
  Blackfin: H8606: move 8250 irqflags to platform resources
  Blackfin: glue XIP/ROM kernel kconfigs
  Blackfin: update sparse flags for latest upstream changes
  Blackfin: coreb: update ioctl numbers
  Blackfin: coreb: add gpl module license
  Blackfin: bf518-ezkit: add ssm2603 codec resources
  Blackfin: bf51x/bf52x: fix 16/32bit SPORT MMR helpers
  Blackfin: tll6527m: new board port
  Blackfin: bf526-ezbrd/bf527-ezkit: add NAND partition for u-boot
  Blackfin: merge kernel init memory back into main memory region
  Blackfin: gpio: add peripheral group check
  Blackfin: dma: bf54x: add missing break for SPORT1 TX IRQ
  Blackfin: add new cacheflush syscall
  Blackfin: bf548-ezkit: increase u-boot partition size
  ...
2010-10-22 21:12:27 -07:00
Mike Frysinger
39c999697b Blackfin: bf561: rewrite SICA_xxx to just SIC_xxx
This matches all the other Blackfin ports and keep us from having to write
bf561-specific code in many places.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 16:30:02 -04:00
Mike Frysinger
7696eecf14 Blackfin: coreb: update ioctl numbers
We have to use ioctl numbers that don't collide with common code.
Otherwise, these ones never even get called because the common fs
code swalled all invocations.

Reported-by: Kay Duenzer <kduenzer@maku.eu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 16:29:59 -04:00
Mike Frysinger
6cf4d0fadc Blackfin: coreb: add gpl module license
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 16:29:59 -04:00
Linus Torvalds
092e0e7e52 Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
  vfs: make no_llseek the default
  vfs: don't use BKL in default_llseek
  llseek: automatically add .llseek fop
  libfs: use generic_file_llseek for simple_attr
  mac80211: disallow seeks in minstrel debug code
  lirc: make chardev nonseekable
  viotape: use noop_llseek
  raw: use explicit llseek file operations
  ibmasmfs: use generic_file_llseek
  spufs: use llseek in all file operations
  arm/omap: use generic_file_llseek in iommu_debug
  lkdtm: use generic_file_llseek in debugfs
  net/wireless: use generic_file_llseek in debugfs
  drm: use noop_llseek
2010-10-22 10:52:56 -07:00
Mike Frysinger
3d7dc8836a Blackfin: i2c-gpio boards: use GPIO_PF# defines
Rather than use raw numbers for the GPIO pins, use proper GPIO defines.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 03:48:54 -04:00
Barry Song
027285e86f Blackfin: bf561-ezkit: add AD1836 codec resources
This board has an AD1836 codec, so make sure we have the right resources
declared for it.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 03:48:53 -04:00
Michael Hennerich
9e75894c50 Blackfin: boards: use proper irq flags with isp1362-hcd
With the recent kernel update the isp1362-hcd driver evaluates the
IORESOURCE_IRQ resource flags and requests the irq with the given
polarity/edge settings.  However the ISP1362 config requires low
level/edge interrupts.  Most of the Blackfin boards use some random
flag or no flag at all.  Make all boards use a know good flag
IORESOURCE_IRQ_LOWEDGE.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 03:48:45 -04:00
Valentin Yakovenkov
657bb918d9 Blackfin: bf561-acvilon: fix NAND resources
The NAND platform driver expects the registers to have a "mem"
resource type rather than "io".

Signed-off-by: Valentin Yakovenkov <yakovenkov@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 03:48:45 -04:00
Barry Song
7ba80063e9 Blackfin: boards: update AD183x resources
Make sure we use the right Kconfig names and platform strings.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 03:48:43 -04:00
Mike Frysinger
3d6437b35d Blackfin: punt short SPI MMR bit names
Now that the common header defines everything and the SPI drivers are
using it, we can drop these duplicated global namespace polluters.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-22 03:48:27 -04:00
Arnd Bergmann
6038f373a3 llseek: automatically add .llseek fop
All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.

The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.

New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time.  Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.

The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.

Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.

Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.

===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
//   but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}

@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}

@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
   *off = E
|
   *off += E
|
   func(..., off, ...)
|
   E = *off
)
...+>
}

@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}

@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
  *off = E
|
  *off += E
|
  func(..., off, ...)
|
  E = *off
)
...+>
}

@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}

@ fops0 @
identifier fops;
@@
struct file_operations fops = {
 ...
};

@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
 .llseek = llseek_f,
...
};

@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
 .read = read_f,
...
};

@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
 .write = write_f,
...
};

@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
 .open = open_f,
...
};

// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
...  .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};

@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
...  .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};

// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
...  .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};

// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};

// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};

@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+	.llseek = default_llseek, /* write accesses f_pos */
};

// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////

@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
 .write = write_f,
 .read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};

@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};

@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};

@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
2010-10-15 15:53:27 +02:00
David Howells
3b139cdb37 Blackfin: Rename IRQ flags handling functions
Rename h/w IRQ flags handling functions to be in line with what is expected for
the irq renaming patch.  This renames local_*_hw() to hard_local_*() using the
following perl command:

	perl -pi -e 's/local_irq_(restore|enable|disable)_hw/hard_local_irq_\1/ or s/local_irq_save_hw([_a-z]*)[(]flags[)]/flags = hard_local_irq_save\1()/' `find arch/blackfin/ -name "*.[ch]"`

and then fixing up asm/irqflags.h manually.

Additionally, arch/hard_local_save_flags() and arch/hard_local_irq_save() both
return the flags rather than passing it through the argument list.

Signed-off-by: David Howells <dhowells@redhat.com>
2010-10-07 14:08:52 +01:00
David Howells
3dcc1e7f9f Blackfin: Split PLL code from mach-specific cdef headers
Split the PLL control code from the Blackfin machine-specific cdef headers so
that the irqflags functions can be renamed without incurring a header loop.

Signed-off-by: David Howells <dhowells@redhat.com>
2010-10-07 14:08:49 +01:00
Mike Frysinger
ac0a5042be Blackfin: punt duplicate SPORT MMR defines
The common bfin_sport.h header now has unified definitions of these, so
stop polluting the global namespace.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-27 15:58:27 -04:00
Marek Vasut
ef56609f9c BFIN: Fix gen_nand probe structures contents
These two platforms didn't properly fill nr_chips in gen_nand 
registration and therefore depended on gen_nand bug fixed by by commit
81cbb0b177 ("mtd: gen_nand: fix support for
multiple chips")

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-12 12:17:32 +01:00
Mike Frysinger
812ae98f08 Blackfin: gpio/portmux: clean up whitespace corruption
Random tabs instead of spaces, mixes of the two, and unicode spaces
instead of ascii spaces.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:51 -04:00
Mike Frysinger
306208f40c Blackfin: add a GPIO_DEFAULT_BOOT_SPI_CS
This is parallel to the existing P_DEFAULT_BOOT_SPI_CS, but in terms of
the GPIO value so it can be used with the normal gpio API.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:49 -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
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
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
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
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
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
c13ce9fd26 Blackfin: add UART/SPORT early platform resources
This lets people easily select the UART/SPORT consoles for early printk
while leveraging the pins declared in the boards file.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:45 -05:00
Sonic Zhang
6bd1fbea2e Blackfin: move on-chip UART resources to boards files
Rather than keeping the pins in the actual driver and worrying about a
mess of Kconfig options, declare all the desired pin resources in the
boards file.  This lets people easily select the specific pins/ports for
the normal UART as well as GPIOs for CTS/RTS.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09 00:30:45 -05:00
Mike Frysinger
caf0ea8582 Blackfin: drop unused ax88180 resources
The ax88180 driver was never merged, so drop the corresponding resources.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:16:43 -05:00
Yi Li
578d36f5e1 Blackfin: SMP: don't start up core b until its state has been completely onlined
When testing PREEMPT_RT kernel on BF561-EZKit, the kernel blocks while
booting.  When the kernel initializes the ethernet driver, it sleeps and
never wakes up.

The issue happens when the kernel waits for a timer for Core B to timeout
(the timers are per-cpu based: static DEFINE_PER_CPU(struct tvec_base *,
tvec_bases) = &boot_tvec_bases).

However, the ksoftirqd thread for Core B (note, the ksoftirqd thread is
also per-cpu based) cannot work properly, and the timers for Core B never
times out.

When ksoftirqd() for the first time runs on core B, it is possible core A
is still initializing core B (see smp_init() -> cpu_up() -> __cpu_up()).
So the "cpu_is_offline()" check may return true and ksoftirqd moves to
"wait_to_die".

So delay the core b start up until the per-cpu timers have been set up
fully.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:16:09 -05:00
Valentin Yakovenkov
ab843c7940 Blackfin: add support for the Acvilon BF561 board
Signed-off-by: Valentin Yakovenkov <yakovenkov@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:15:10 -05:00
Mike Frysinger
00d2460454 Blackfin: unify DMA masks
Every Blackfin variant has the same DMA bit masks, so avoid duplicating
them over and over in each mach header.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:14:59 -05:00
Michael Hennerich
c6feb76828 Blackfin: fix typo in isp1760 platform name
The driver changed from "isp1760-hcd" to "isp1760", so update resources
to match.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:14:55 -05:00
Mike Frysinger
a8e8e49168 Blackfin: unify duplicated power masks
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15 00:14:53 -05:00