Commit graph

451 commits

Author SHA1 Message Date
Tony Lindgren d21872b368 Merge branch 'v2.6.35-omap-mailbox-for-next' of git://gitorious.org/~doyu/lk/mainline into omap-for-linus
Conflicts:
	arch/arm/mach-omap1/devices.c
2010-08-04 16:10:38 +03:00
Felipe Contreras b3e69146f4 omap: mailbox: reorganize headers
Remove kernel.h and module.h since they are not used correctly anyway.

Also, remove device.h since it comes along with platform_device.h
(always will I guess).

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:20 +03:00
Felipe Contreras d742709ea4 omap: mailbox: standarize on 'omap-mailbox'
omap{1,2}-mailbox are modules that provide the 'omap-mailbox' driver.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:19 +03:00
Felipe Contreras 9c80c8cd74 omap: mailbox: simplify omap_mbox_register()
No need to dynamically register mailboxes one by one.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:19 +03:00
Felipe Contreras 898ee75623 omap: mailbox: reorganize registering
It's more extensible this way.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:19 +03:00
Felipe Contreras 1f2c4dfd30 omap: mailbox: add IRQ names
Will be useful to identify them later.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:19 +03:00
Felipe Contreras 4b191eb960 omap: mailbox: don't export unecessary symbols
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:18 +03:00
Felipe Contreras 5f1af5c701 omap: mailbox: update omap1 probing
Based on omap2 code.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:18 +03:00
Felipe Contreras e37a769caa omap: mailbox: use correct config for omap1
CONFIG_OMAP_DSP is not in mainline, CONFIG_OMAP_MBOX_FWK is.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:18 +03:00
Felipe Contreras 909f9dc71e omap: mailbox: trivial cleanups
And fix a few compilation warnings.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:17 +03:00
Tony Lindgren 7590d1defd Merge branch 'devel-map-io' into omap-for-linus 2010-08-04 14:43:45 +03:00
Jason Wang 7e788b4289 omap: Fix DEBUG_LL uart to access phys addr when MMU isn't enable
Now we use a memory address to store the debug port info, So we need
to read/write this address when we choose DEBUG_LL. When MMU isn't
enable(I.E. the begining part of init stage of the linux kernel boot),
we need to access physical address instead of virtual address,
otherwise the kernel will crash.

Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04 12:17:53 +03:00
Tony Lindgren 331d919af4 Merge branch 'for_2.6.36' of git://git.pwsan.com/linux-2.6 into omap-for-linus 2010-08-04 08:46:24 +03:00
Tony Lindgren 055a1b8c99 Merge branch 'devel-misc' into omap-for-linus 2010-08-02 14:23:38 +03:00
Cory Maccarrone 8b8fbd39e2 omap1: omap7xx clocks, mux, serial fixes
This change adds in the necessary clocks and mux pins for UART
control on omap7xx devices.  I also made a change in the serial
code to only try and initialize two UARTs in omap_serial_init, as
these devices don't have three.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 14:21:39 +03:00
Paul Walmsley fb2fc9204f OMAP1: clock: some cleanup
Convert most of the magic numbers in mach-omap1/clock_data.c to use
macros.  Clean up a few comments to conform with Documentation/CodingStyle.
Mark the current clkops_uart as being OMAP16xx-only, and add some comments
to indicate that it does not belong there, for future cleanup.

This patch should not cause any functional changes.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:28 -06:00
Paul Walmsley 936305a96c OMAP1: OPP: add KConfig entry for 96MHz ARM rate (using a 12MHz oscillator)
Add KConfig entry for one of the OMAP1 DVFS rates that was missing it.
Based on the surrounding rate KConfigs and the oscillator frequency,
this patch marks it as valid for all OMAP1 platforms -- Richard,
Tuukka, Tony, perhaps you can comment if this does not look right?

In the long term, all of these CONFIG_OMAP_ARM_*MHZ should be removed.
The OPP settings should be associated with the platform information in
the structure data (perhaps by extending the omap_chip defines).  The
selection of which rates to use should be handled at runtime; rates
that are impossible due to xtal frequency mismatch or SoC-type
mismatch should not be included.  If implemented correctly, this
should save some CPU time and some memory on OMAP1 kernels.

Reported-by: Christoph Egger <siccegge@cs.fau.de>
Reported-by: The VAMOS Research Project <vamos@i4.informatik.uni-erlangen.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Tuukka Tikkanen <tuukka.tikkanen@nokia.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:27 -06:00
Russell King 71ee7dad9b ARM: OMAP: Convert to use ->reserve method to reserve boot time memory
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-16 11:06:41 +01:00
Christoph Egger 74b86b3d57 Removing dead APM
APM doesn't exist in Kconfig, therefore removing all references for it
from the source code.

Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 17:03:59 +03:00
Christoph Egger df8d481df9 Removing dead OMAP_STI
OMAP_STI doesn't exist in Kconfig, therefore removing all
references for it from the source code.

Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 17:03:58 +03:00
Christoph Egger ab6f775190 Removing dead OMAP_DSP
OMAP_DSP doesn't exist in Kconfig, therefore removing all
references for it from the source code.

Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
[tony@atomide.com: updated to apply on top of already queued patches]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:54 +03:00
Christoph Egger 4705c1ca8b Removing dead OMAP_IR
OMAP_IR doesn't exist in Kconfig, therefore removing all references
for it from the source code.

Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
[tony@atomide.com: updated for new mux code]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:53 +03:00
Christoph Egger 312b80a1e5 Replace dead OMAP_MUX_ERRORS with OMAP_MUX_WARNINGS
OMAP_MUX_ERRORS doesn't exist in Kconfig, therefore replacing all
references for it with OMAP_MUX_WARNINGS in the source code.

Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:53 +03:00
Tony Lindgren 4a54db6124 omap: Make omap specific features appear under Kconfig menu
This will make Kconfig look nicer for selecting omap processor type

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:47 +03:00
Tony Lindgren 93c43f2561 omap: mux: Do keypad muxing in board-*.c files
This way we get pin muxing out of plat-omap and can convert H4 to use the
new mux functions.

Note that it should be safe to assume we can mux all the keypad pins
except on H4 which may have Menelaus connected.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:39 +03:00
Tony Lindgren dd0cdd8882 omap: Move omap1 USB platform init code into mach-omap1/usb.c
Move omap1 FS USB platform init code into mach-omap1/usb.c

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:30 +03:00
Tony Lindgren f6304f5804 Merge branch 'omap4-i2c-init' into omap-for-linus 2010-05-20 11:37:23 -07:00
Felipe Balbi 5838bb6749 OMAP1 clock: fix section mismatch on clk_init
remove the section annotation from omap1_clk_disable_unused()
to kill the section mismatch warning.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-05-20 12:31:04 -06:00
Russell King ac1d426e82 Merge branch 'devel-stable' into devel
Conflicts:
	arch/arm/Kconfig
	arch/arm/include/asm/system.h
	arch/arm/mm/Kconfig
2010-05-17 17:24:04 +01:00
Russell King 6262c92f51 ARM: Remove useless linux/bootmem.h includes
These files include linux/bootmem.h without using anything from this
file; remove the unnecessary include.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-15 15:03:48 +01:00
Janusz Krzysztofik e6f740f596 OMAP1: Amstrad Delta: use FIQ for processing GPIO interrupts
The patch adds initialization of FIQ related handlers to the Amstrad Delta
videophone board code. FIQ will be used instead of a traditional IRQ for
processing all GPIO generated interrupts, including a keyboard serial clock
line.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-05-05 11:11:10 -07:00
Janusz Krzysztofik 4cb2dc67d1 OMAP1: Amstrad Delta: update board initialization code forcomplete modem IRQ GPIO line setup
In case of Amstrad Delta modem utilized GPIO line, interrupt is requested from
standard serial8250 driver code without first requesting the GPIO pin itself.
Even if it works with default OMAP GPIO interrupt handler, it appeared not
compatible with recent, optimized version of the board GPIO FIQ handler,
required for fast processing of interrupts generated by other GPIO pin that a
serial keyboard clock hangs off.

This patch fills the board specific modem initialization routine with common
GPIO line reservation and direction setup.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-05-05 11:11:10 -07:00
Janusz Krzysztofik 11f9562a42 OMAP1: Amstrad Delta: add a handler for processing interruptsgenerated by the FIQ routine
This patch introduces an IRQ handler used for processing interrupts generated
by the FIQ handler when it decides there are data ready for processing.

The handler further invokes device specific interrupt routines based on
interrupt source counters passed from the FIQ handler.

The handler setup function is intended to be called from the board
provided init_machine() callback.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
[tony@atomide.com: Updated to include linux/io.h instead of plat/io.h
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-05-05 11:11:10 -07:00
Janusz Krzysztofik 60c3bf3f12 OMAP1: Amstrad Delta: add FIQ handler for serial keyboardport interrupt processing
This patch introduces a Fast Interrupt Request (FIQ) handler for Amstrad Delta
(E3) videophone. The handler's purpose is to process interrupts generated by a
GPIO line that a serial keyboard clock hangs off. It collects consecutive bits
into words, pushing them into a buffer, then requests a higher level interrupt
after one or more words are ready for further processing by a keyboard port
driver.

The handler also processes interrupts generated by two other GPIO lines, used
by other on-board supported devices, by simply requesting a higher level
interrupt, that in turn should invoke those device's specific irq handlers.

IRQ12 line, not used by OMAP1510 hardware (described as reserved), has been
choosen as a higher level interrupt source.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-05-05 11:11:10 -07:00
Tony Lindgren 96554d7077 omap: Use a memory address for storing the debug port info instead of UART1 scratchpad
This removes the dependency to the UART1 being available for storing
the debug configuration in uncompress.h. This will simplify the
DEBUG_LL UART configuration for boards that may not have UART1, or
have an external UART as it requires only one mapping for DEBUG_LL.

The patch has a few limitations. Basically now we're assuming that
the kernel uncompress code won't overlap with OMAP_UART_INFO. We also
assume the printascii is called at least once before paging_init in
order for addruart to have a chance to read the UART setup from
OMAP_UART_INFO.

As suggested by Cyril Chemparathy <cyril@ti.com>,
Vikram Pandita <vikram.pandita@ti.com> and
Kevin Hilman <khilman@deeprootsystems.com>. Based on an earlier
patch posted for Davinci by Cyril Chemparathy <cyril@ti.com>.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-05-03 17:53:08 -07:00
Linus Torvalds 17282b9855 Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (39 commits)
  omap: delete unused bootloader tag variables
  omap: Devkit8000: Remove unused pins
  omap: Devkit8000: Change position of init calls
  omap: Devkit8000: Remove unnecessary include file
  omap: Devkit8000: Fix typo in pin name
  omap: Devkit8000: Add missing package selection
  omap: Devkit8000: Fix typo in supplies
  n8x0_defconfig: remove CONFIG_NILFS2_FS override
  omap: board-sdp-flash.c: Fix typos in debug output
  omap4: Fix McBSP4 base address
  omap: rx51_defconfig: Remove CONFIG_SYSFS_DEPRECATED*=y options
  omap: rx51_defconfig: Remove duplicate phonet
  omap: fix a gpmc nand problem
  AM3517: initialize i2c subsystem after mux subsystem
  omap: remove one of the define of INT_34XX_BENCH_MPU_EMUL
  omap: fix the compile error if CONFIG_MTD_NAND_OMAP2 is notenabled
  OMAP4: Clocks: Change SPI Instance Names
  omap: Devkit8000: Fix wrong usb port on Devkit8000
  OMAP4: Fix for CONTROL register Base
  OMAP4-HSMMC: FIX for MMC5 Controller IRQ Base
  ...
2010-04-27 08:27:26 -07:00
Felipe Balbi 46cdc4e431 arm: omap1: remove dead code from timer32k.c
Trivial patch, no functional changes

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-04-22 17:32:36 -07:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Jarkko Nikula 9833eff3d7 omap: i2c: Fix muxing for command line enabled bus
The commit b63128e812 broke the pin muxing
for I2C busses that are enabled from the kernel command line.

Fix this by defining the board registration function omap_register_i2c_bus
in common platform code as it was before but keep the muxing in architecture
dependent files.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-25 14:45:08 -08:00
Santosh Shilimkar 7c43d54728 OMAP4: clock: Add dummy clock nodes for interface clocks
On OMAP4 platform the iclk control is completly under hardware control
and no software control is available.

This difference w.r.t previous OMAP's needs all the common driver
accross OMAP's , cpu_is_xxxx() checks. To avoid poulluting the
drivers dummy clock nodes are created (The autogeneration
script has been updated accordingly).

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: made OMAP1 dummy_ck common and edited patch to reuse that]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-02-24 17:45:17 -07:00
Paul Walmsley 51c1954162 OMAP clock: drop RATE_FIXED clock flag
The RATE_FIXED clock flag is pointless.  In the OMAP1 clock code, it
simply causes the omap1_clk_round_rate() function to return the
current rate of the clock.  omap1_clk_round_rate(), however, should
never be called for a fixed-rate clock, since none of these clocks
have a .round_rate function pointer set in their struct clk records.
Similarly, in the OMAP2+ clock code, the RATE_FIXED flag just causes
the clock code to emit a warning if the OMAP clock maintainer was
foolish enough to add a .round_rate function pointer to a fixed-rate
clock.  "Doctor, it hurts when I pretend that a fixed-rate clock is
rate-changeable."  "Then don't pretend that a fixed-rate clock is
rate-changeable."  It has no functional value.  This patch drops the
RATE_FIXED clock flag, removing it from all clocks that are so marked.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
2010-02-24 12:29:43 -07:00
Paul Walmsley b92c170d01 OMAP clock: drop .id field; ensure each clock has a unique name
After the clkdev conversion, the struct clk.id field became
superfluous, so, drop it.  Bring the clock names closer to the TRMs
and ensure they are unique for debugfs.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-02-24 12:16:13 -07:00
Felipe Balbi d761585a05 omap1: mailbox: kill compile warning
use ioremap and remove unused variable to get rid
of compile warnings.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15 10:03:33 -08:00
Janusz Krzysztofik c8c99699bd omap: McBSP: Introduce caching in register write operations
Determine cache size required per McBSP port at init time, based on
processor type running on.

Allocate space for storing cached copies of McBSP register values at
port request.

Modify omap_msbcp_write() function to update the cache with every
register write operation.

Modify omap_mcbsp_read() to support reading from cache or hardware.

Update MCBSP_READ() macro for modified omap_mcbsp_read() function API.

Introduce a new macro that reads from the cache.

Tested on OMAP1510 based Amstrad Delta using linux-omap for-next, commit
fb7380d70e041e4b3892f6b19dff7efb609d15a4 (2.6.33-rc3+ dated 2010-01-11).
Compile-tested with: omap_perseus2_730_defconfig, omap_generic_1610_defconfig,
omap_generic_2420_defconfig, omap_2430sdp_defconfig, omap_3430sdp_defconfig,
omap_4430sdp_defconfig with CONFIG_OMAP_MCBSP=y selected.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15 10:03:33 -08:00
Ladislav Michl 561b036ad9 omap: convert boards to use physmap-flash
Convert OMAP based boards to use physmap-flash. Refreshed against today's
Linux omap kernel tree

Cc: linux-mtd@lists.infradead.org
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15 10:03:32 -08:00
Tony Lindgren be26a3df0b Merge branch 'debug-ll' into omap-for-linus 2010-02-15 09:26:07 -08:00
Tony Lindgren 0c8219f030 omap: Make uncompress code and DEBUG_LL code generic
Define arch_decomp_setup() the same way as some other
architectures do. Use arch_id to configure the debug uart
based on the machine_is by storing it into the uart
scratchpad register for DEBUG_LL code to use.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15 08:49:01 -08:00
Tony Lindgren 4f2c49fedf omap: Clean the serial port defines
This way we don't have conflicts with the defines
with compiling in multiple omaps. Set the addresses
for uarts in struct omap_globals for the early serial
init code.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15 08:48:53 -08:00
Tony Lindgren 4e6d488af3 ARM: 5910/1: ARM: Add tmp register for addruart and loadsp
Otherwise more complicated uart configuration won't be possible.
We can use r1 for tmp register for both head.S and debug.S.

NOTE: This patch depends on another patch to add the the tmp register
into all debug-macro.S files. That can be done with:

$ sed -i -e "s/addruart,rx|addruart, rx/addruart, rx, tmp/"
	arch/arm/*/include/*/debug-macro.S

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-12 17:27:52 +00:00
Paul Walmsley 0dfc242ff0 OMAP1 clock: convert armwdt_ck to use the fixed divisor recalc function
The armwdt_ck clock uses a fixed divisor, so it can use the OMAP clock
fixed divisor recalculation code, rather than a custom function.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:57 -07:00
Paul Walmsley af022fafa8 OMAP1 clock: fix for "BUG: spinlock lockup on CPU#0"
Commit 52650505fb caused clock initialization
to fail on OMAP1 with "BUG: spinlock lockup on CPU#0" -- this is because
omap1_select_table_rate() and omap1_round_to_table_rate() call clk_get_rate()
with the clockfw spinlock held.  Fix by accessing the rate directly from
the internal clock framework functions.

Thanks to Tony Lindgren <tony@atomide.com> for reporting and testing the fix.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
2010-01-20 13:35:28 -07:00
Tony Lindgren 27dba4bcf8 Merge branch 'for_2.6.33rc_c' of git://git.pwsan.com/linux-2.6 into omap-fixes-for-linus 2010-01-08 14:27:56 -08:00
Cory Maccarrone 9b11769f99 OMAP1 clock: remove __initdata from struct clk_functions to prevent crash
Commit 52650505fb added an __initdata
decoration to the structure containing the clk_enable and clk_disable
functions.  Once init data was freed, these pointers went to null, and
the next enable or disable call caused the kernel to crash.  This
change removes this decoration.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
[paul@pwsan.com: patch manually split and commit message edited]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08 15:23:14 -07:00
Cory Maccarrone e8ae6b6e4d OMAP1 clock: Add missing clocks for OMAP 7xx
This change adds in some missing clocks that were needed as a result
of 526505... (OMAP1 clock: convert mach-omap1/clock.h to
mach-omap1/clock_data.c).  Prior to this, it was just assumed that
these clocks existed for all devices, and it was used directly instead
of calling it out with a clock_get call or similar.  So, not having
the CK_7XX meant these clocks weren't being used anymore for omap 7xx
devices, which broke things badly.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
[paul@pwsan.com: commit message edited]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-08 15:23:10 -07:00
Cory Maccarrone c5c4dce45d omap1: Add 7xx clocks and pin muxes for SPI
Commit 35c9049b27 added
drivers/spi/omap_spi_100k.c.

This patch add the related clocks and pin muxing
entries to make the driver work on omap7xx platforms.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-08 10:29:05 -08:00
Janusz Krzysztofik 8d72c796c9 omap1: LCD_DMA: Use some define rather than a hexadecimal
The patch corrects the issue introduced with one of my earlier patches:
	OMAP: DMA: Fix omapfb/lcdc on OMAP1510 broken when PM set[1]
as pointed out by OMAP subsystem maintainer.

Applies on top of my prevoius patch:
  OMAP: DMA: move LCD DMA related code from plat-omap to mach-omap1[2]

Tested on Amstrad Delta
Compile tested with omap_generic_2420_defconfig

[1] http://patchwork.kernel.org/patch/57922/
[2] http://patchwork.kernel.org/patch/61952/

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:36 -08:00
Cory Maccarrone bf92a40762 omap1: I2C mux and clocks for omap7xx
This change adds MUX pin configuration and clocks for I2C support
to OMAP 730 and 850-based devices.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Cory Maccarrone 106997c1a4 omap1: Add omap7xx USB support
This change implements USB client side support into the HTC
Herald board configuration.  It uses a similar, but updated
algorithm to initialize the USB as is used in the linwizard
project.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Janusz Krzysztofik f8e9e98454 omap1: DMA: move LCD related code from plat-omap to mach-omap1
All of the LCD DMA code in plat-omap/dma.c appears to be OMAP1-only (and
apparently only is available on a subset of OMAP1 chips).

Move this code to mach-omap1/lcd_dma.c.

Tested on OMAP1510 Amstrad Delta.
Compile-tested with omap_generic_2420_defconfig.

Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Ladislav Michl 414f552ad8 omap1: Use gen_nand
Since omapnand driver never find its way into mainline, switch to gen_nand instead.
Following patch is compile tested only, but it is based on code I wrote for
NetStar board and runtime tested it there.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Cc: Imre Deak <imre.deak@nokia.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Kevin Hilman <kjh@hilman.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Ladislav Michl 3bc4801478 omap: use smc91x_platdata to setup smc91x
Use smc91x_platdata to setup smc91x, so we can get rid of OMAP specific stuff
in smc91x driver

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Tony Lindgren b63128e812 omap: Split i2c platform init for mach-omap1 and mach-omap2
Otherwise we cannot limit new mux code to mach-omap2.
The same signal names should eventually work for other
omaps under mach-omap2.

Note that these pins don't need to be OMAP_PIN_INPUT_PULLUP,
just OMAP_PIN_INPUT is enough.

Cc: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Paul Walmsley 52650505fb OMAP1 clock: convert mach-omap1/clock.h to mach-omap1/clock_data.c
The OMAP1 clock code currently #includes a large .h file full of static
data structures.  Instead, define the data in a .c file.

Russell King <linux@arm.linux.org.uk> proposed this new arrangement:

    http://marc.info/?l=linux-omap&m=125967425908895&w=2

This patch also deals with most of the flagrant checkpatch violations.

While here, separate the mpu_rate data structures out into their own
files, opp.h and opp_data.c.  In the long run, these mpu_rate tables
should be replaced with OPP code.

Also includes a patch from Felipe Balbi <felipe.balbi@nokia.com> to
mark omap1_clk_functions as __initdata to avoid a section warning:

    http://patchwork.kernel.org/patch/64366/

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Nishanth Menon <nm@ti.com>
2009-12-11 17:00:40 -07:00
Paul Walmsley 6f62b58dd4 OMAP1 clock: convert test in disable_unused() to use ENABLE_ON_INIT
mach-omap1/clock.c:omap1_clk_disable_unused() contains a test that
assumes that the clock structures are available in the file's
namespace.  After a following patch, this will no longer be the case.
So we need to reimplement that test.  It turns out that we already
have a facility in the clock framework to handle this case - the
ENABLE_ON_INIT flag - used on OMAP2/3.  Remove the offending test and
mark the clocks that it was intended to catch as ENABLE_ON_INIT.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:40 -07:00
Paul Walmsley ebd893ded2 OMAP1/2/3 clock: remove paranoid checks in preparation for clock{,2xxx,3xxx}_data.c
Some parts of the clock code took advantage of the fact that the statically
allocated clock tree was in clock{,24xx,34xx}.c's local namespace to do some
extra argument checks.  These are overzealous and are more difficult to
maintain when the clock tree is in a separate namespace, so, remove them.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 16:12:07 -07:00
Tomi Valkeinen 91773a00f8 OMAP: OMAPFB: split omapfb.h
Split arch/arm/plat-omap/include/mach/omapfb.h into two files:

include/linux/omapfb.h - ioctls etc for userspace and some kernel
                         stuff for board files
drivers/video/omap/omapfb.h - for omapfb internal use

This cleans up omapfb.h and also makes it easier for the upcoming new
DSS driver to co-exist with the old driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2009-12-09 12:04:06 +02:00
Cory Maccarrone 9c2816f7bd omap1: Add board support and LCD for HTC Herald
This patch introduces support for the HTC Herald (T-Mobile
Wing, etc.) series of smart phones -- board support and LCD
panel settings.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-22 10:24:33 -08:00
Cory Maccarrone 45f780a061 omap1: omap_udc: Add clocking and disable vbus sense for omap7xx
The l3_ocpi_ck clock is needed on omap7xx processors for USB.
Additionally, bit 8 of the SOFT_REQ_REG needs to be enabled for
the usb_dc_ck on omap7xx, which is a different bit than that
of the omap16xx-defined clock of the same name.

I added a provision for the usb_dc_ck and l3_ocpi_ck clocks as
dc_clk and hhc_clk, respectively, for omap7xx CPUs.  Additionally,
I added a check in machine_without_vbus_sense for all omap7xx
devices, as presently I know of no omap7xx-based devices that
have vbus sense, and it made more sense to me to use a cpu check
here than to spell out each machine one at a time.  Finally, DMA
is disabled for omap7xx, as it causes problems with these chips.

Cc: linux-usb@vger.kernel.org
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-22 10:24:32 -08:00
Cory Maccarrone 490a566522 omap1: mmc: Add platform init for omap7xx
The MMC mux pins normally used by omap chips in devices.c
are different from what is needed by omap7xx chips.  This
change adds a conditional around the mux setup code to
enable the correct mux pins.

The omap730 and omap850 both use a different clock for the "fck"
clock of the MMC interface than other omap processors based on the
SOFT_REQ_REG, pin 12.  The "ick" clock is the same as that used
by other omap processors.

* Added the missing clock definition as mmc3_ck to clock.h
* Added the clock definition to omap_clks in clock.c
* Added CK_7XX to the mmci-omap.0 "ick" clock already in clock.c

With these changes, it is now possible to initialize and use MMC
cards with omap730 and omap850 devices.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-22 10:24:32 -08:00
Alexander Shishkin 9d30b99f35 omap: Eliminate OMAP_MAX_NR_PORTS
Eliminate OMAP_MAX_NR_PORTS

Note that also the null terminator entry for omap1
serial_platform_data needs to be now removed to avoid
oopsing.

Note that mach-omap1 uses struct plat_serial8250_port
array, which requires a null terminator at the end,
and that's why we need to use ARRAY_SIZE - 1. This
is not needed on mach-omap2 as the array used is
struct omap_uart_state, and does not use a null
terminator.

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-22 10:24:32 -08:00
Tony Lindgren 774facda20 Merge branch '7xx-iosplit-plat' with omap-fixes 2009-11-10 18:10:34 -08:00
Janusz Krzysztofik b3dba0b81e omap1: Fix DSP public peripherals support for ams-delta
DSP public peripherals used to work on OMAP1510 based (or all OMAP1 class?)
machines as long as old dspgateway code were present in the l-o tree. For
several months it is no longer included, breaking support for McBSP1 based
audio on Amstrad Delta, for example.

This patch, derived from the old dspgateway code, corrects the problem for the
board by simply taking the DSP out of reset state, I guess. That way, things
should not break when a new dsp code is added to the tree, and the change can
be reverted then.

If there are any reports on McBSP1 or other DSP public peripherals not working
for other OMAP1 machines (I've not heard of any for now), I can prepare a more
general patch providing an extra include file with a helper function defined.

Created and tested against linux-2.6.32-rc5

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-22 14:47:42 -07:00
Janusz Krzysztofik c33da3a800 omap1: Fix redundant UARTs pin muxing that can break other hardware support
Commit 15ac408ee5 removed enabled_uart
and OMAP_TAG_UART. This works for mach-omap2, but causes issues on
mach-omap1 for some boards as the mach-omap1 serial.c was muxing
pins based on the enabled_uart flag for 15xx.

Fix this by muxing pins in board-*.c files for the 15xx boards for
the uart ports that had enabled_uart flag set before the commit
above.

Tested on Amsdtrad Delta only.

Note that in the future we should add support for powering down
the uarts with a timer like mach-omap2/serial.c does. Otherwise
the enabled uarts will be blocking retention-while-idle.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-22 14:47:42 -07:00
Tony Lindgren ce491cf854 omap: headers: Move remaining headers from include/mach to include/plat
Move the remaining headers under plat-omap/include/mach
to plat-omap/include/plat. Also search and replace the
files using these headers to include using the right path.

This was done with:

#!/bin/bash
mach_dir_old="arch/arm/plat-omap/include/mach"
plat_dir_new="arch/arm/plat-omap/include/plat"
headers=$(cd $mach_dir_old && ls *.h)
omap_dirs="arch/arm/*omap*/ \
drivers/video/omap \
sound/soc/omap"
other_files="drivers/leds/leds-ams-delta.c \
drivers/mfd/menelaus.c \
drivers/mfd/twl4030-core.c \
drivers/mtd/nand/ams-delta.c"

for header in $headers; do
	old="#include <mach\/$header"
	new="#include <plat\/$header"
	for dir in $omap_dirs; do
		find $dir -type f -name \*.[chS] | \
			xargs sed -i "s/$old/$new/"
	done
	find drivers/ -type f -name \*omap*.[chS] | \
		xargs sed -i "s/$old/$new/"
	for file in $other_files; do
		sed -i "s/$old/$new/" $file
	done
done

for header in $(ls $mach_dir_old/*.h); do
	git mv $header $plat_dir_new/
done

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-20 09:40:47 -07:00
Tony Lindgren 3eff851b9d omap: headers: Create headers necessary for compile under mach-omap1 and mach-omap2
Create the headers needed for compiling under
mach-omap1/include/mach and mach-omap2/include/mach.

This was done with the following script:

#!/bin/bash
mach_files="clkdev.h gpio.h hardware.h io.h irqs.h memory.h \
smp.h system.h timex.h uncompress.h vmalloc.h"
omaps="mach-omap1 mach-omap2"

mach_dir_old="arch/arm/plat-omap/include/mach"
plat_dir_new="arch/arm/plat-omap/include/plat"

mkdir -p $plat_dir_new
git add $plat_dir_new

for dir in $omaps; do
	mach_dir_new="arch/arm/$dir/include/mach"
	for header in $mach_files; do
		file="$mach_dir_new/$header"
		if [ ! -f $file ]; then
			echo -ne "/*\n * $file\n */\n\n#include <plat/$header>\n" > $file
			git add $file
			if [ ! -f $plat_dir_new/$header ]; then
				git mv $mach_dir_old/$header $plat_dir_new/$header
			fi
		fi
	done
done

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19 17:32:58 -07:00
Tony Lindgren 1e79ab8a45 omap: headers: Move mtd-xip.h to be mach-omap1 specific
These registers are omap1 specific.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19 17:32:55 -07:00
Tony Lindgren 72464dbae2 omap: Split vmalloc.h for mach-omap1 and mach-omap2
Earlier patch "omap: Remap L3, L4 to get more kernel io address space"
changed the VMALLOC_END.

However, this change causes problems on mach-omap1:

BUG: mapping for 0xe0000000 at 0xe0000000 overlaps vmalloc space
BUG: mapping for 0xe1000000 at 0xe1000000 overlaps vmalloc space

Fix this by creating separate vmalloc.h files for mach-omap1
and mach-omap2.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19 17:26:29 -07:00
Tony Lindgren c97c686467 omap: headers: Split entry-macro.S for mach-omap1 and mach-omap2
Split entry-macro.S for mach-omap1 and mach-omap2

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19 17:26:19 -07:00
Tony Lindgren aca59b8922 omap: headers: Split debug-macro.S for mach-omap1 and mach-omap2
This also creates the include/mach subdirectories under
mach-omap1 and mach-omap2.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19 17:26:17 -07:00
Tony Lindgren 84f90c9cc8 omap: Change low-level serial init to use ioremap
Change low-level serial init to use ioremap

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-16 09:53:00 -07:00
Alistair Buxton 1f73b4de93 OMAP850: PM: Add an ARCH_OMAP850 check
This just makes the same warning be printed on omap850 and omap730.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
2009-10-07 23:14:08 +01:00
Angelo Arrifano ab985ff471 OMAP7XX: Clocks: Add ck_ref and armxor
These clocks are required for booting.

Signed-off-by: Angelo Arrifano <miknix@gmail.com>
Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:08 +01:00
Alistair Buxton 7c00692640 OMAP7XX: Rename all the rest of the omap730 references in omap1 core
This patch is part of a series which removes references to omap730 in code
which is shared with omap850, replacing them with references to omap7xx.

This updates all the remaining omap730 references in miscellaneous local
variables, macros and similar.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:06 +01:00
Alistair Buxton 372b1c32e7 OMAP7XX: Replace omap730 references in irqs.h and all users
This patch is part of a series which removes references to omap730 in code
which is shared with omap850, replacing them with references to omap7xx.

Turns INT_730_* to INT_7XX_* for definitions in irqs.h and all users.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:06 +01:00
Alistair Buxton b51988db94 OMAP7XX: Update core omap1 files to use omap7xx.h
This patch is part of a series which removes references to omap730 in code
which is shared with omap850, replacing them with references to omap7xx.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:05 +01:00
Alistair Buxton bf1cb7eb4f OMAP7XX: McBSP: Add omap850 support
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:04 +01:00
Alistair Buxton 39a8b08610 OMAP7XX: Clocks: Add omap850 support
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

This file had no omap850 specific code. Initial clock support was done in
the Linwizard tree by Zebediah C. McClure.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:04 +01:00
Alistair Buxton 4b9100dde2 OMAP7XX: PM: Add omap850 support
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

This file had no omap850 specific code. Original omap850 support in Linwizard
was done by cloning the omap730 code. That work was done by Zebediah C. McClure.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:03 +01:00
Alistair Buxton 559663b980 OMAP7XX: IRQ: Remove duplicate omap850 code
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

This fixes a bug which prevents IRQs from being enabled on omap850 due to
a missing check in entry-macro.S, which was found by Cory Maccarrone.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:03 +01:00
Alistair Buxton 190215f963 OMAP7XX: Mux: Remove duplicate omap850 code
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:01 +01:00
Alistair Buxton ab49df737d OMAP7XX: IO: Remove duplicate omap850 code
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:14:00 +01:00
Alistair Buxton d8723ae2a4 OMAP7XX: Serial: Remove duplicate omap850 code
This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>
2009-10-07 23:09:52 +01:00
Angelo Arrifano f5ee2fc793 omap: Fix wrong jtag_id for 850
Original message:
The previous value of the jtag_id was set for the omap730.  For the
omap850, this value is different, and this was causing
autodetection to fail.

Reported-by:
  Cory Maccarrone <darkstar6262@gmail.com>
  Angelo Arrifano <miknix@gmail.com>
  Alistair Buxton <a.j.buxton@gmail.com>

Signed-off-by: Angelo Arrifano <miknix@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-09-24 16:23:13 -07:00
Janusz Krzysztofik eff443df67 OMAP1: AMS_DELTA: add modem support
This patch adds support for modem device found on Amstrad E3 (Delta) board.

Based on earlier patch by Jonathan McDowell, available at
http://the.earth.li/pub/e3/2.6.19/ams-delta-modem.patch.
Modified after Ladislav Michl's arch/arm/mach-omap1/board-voiceblue.c.

This patch is dependent on 8250 driver changes getting accepted upstream:
http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=7053133124d5cdf207c1168c7a0c582a18e12ea7

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-28 10:51:37 -07:00
Kalle Valo 15ac408ee5 OMAP: UART: drop OMAP_TAG_UART, enable all UARTs, auto-disabled on idle
OMAP tags are deprecrated so drop them.

Drop UART config data which decides which UARTs to enable during boot.
This is no longer necessary since serial core code disables clocks
after inactivity.

Background: with new UART idle code, all on-chip UARTs are idled using
a configurable inactivity timer (default 5 seconds.)  After the
inactivity timer, UART clocks are disabled automatically.

Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-28 10:51:31 -07:00
Tony Lindgren db326be1bc OMAP: Remove ifdefs for io.h
Remove ifdefs for io.h

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-28 10:50:37 -07:00
Tony Lindgren 941132606c OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS instead
Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS,
and convert omap_read/write into a functions instead of a macros.

Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE.

In the long run, most code should use ioremap + __raw_read/write instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-28 10:50:33 -07:00
Jaswinder Singh Rajput 52cbbd41f7 ARM: includecheck fix: mach-omap1/mcbsp.c
fix the following 'make includecheck' warning:

  arch/arm/mach-omap1/mcbsp.c: mach/irqs.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:08:22 +01:00
Huang Weiyi d376f89701 OMAP1: remove duplicated #include
Remove duplicated #include in arch/arm/mach-omap1/board-nokia770.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23 13:30:22 +03:00
Andrew de Quincey e4d24ec39c OMAP1: Fix N770 MMC support
Some of the N770's MMC configuration options seem to have been
dropped. This patch adds them back in again.

Note that only the .ocr_mask change was /critical/, but I've added the
.max_freq setting back as well, as the original sources had it. Can
anyone confirm if this is unnecessary?

Secondly, there is support in the original code for a 4wire/higher
speed mode. As I don't have the requisite N770 hardware (I think it
was a rev2 N770?) to test this, I can't really add it back.

Signed-off-by: Andrew de Quincey <adq@lidskialf.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23 13:30:21 +03:00
Jonathan McDowell 0c405b3346 OMAP1: Fix compilation of arch/arm/mach-omap1/mailbox.c
This fixes the positioning of " in MODULE_AUTHOR, which is currently
causing a build failure on latest git with CONFIG_OMAP_MBOX_FWK=m; the
original breakage appears to date from the end of last year in
a5abbbe52b7e89a7633319c5417bd4331f7ac8ed

Signed-Off-By: Jonathan McDowell <noodles@earth.li>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23 13:30:21 +03:00
Tony Lindgren c81592ba1b Merge branch 'omap-upstream' into for-next
Conflicts:
	arch/arm/mach-omap2/Makefile
2009-05-28 15:41:03 -07:00
Andrew de Quincey 088962c243 ARM: OMAP1: Make 770 LCD work
Make 770 LCD work by adding clk_add_alias().
Also remove the old unused functions.

Note that the clk_add_alias() could probably be moved
to arch/arm/clkdev.c later on.

Cc: linux-fbdev-devel@lists.sourceforge.net
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com
2009-05-28 14:03:31 -07:00
Kevin Hilman c912f7e1ea OMAP1: PM: update and decouple from OMAP2/3 PM core
Update OMAP1-specific PM infrastructure.  This is a sync of what is in
linux-omap for OMAP1.

This mostly de-couples OMAP1 PM from OMAP2/3 PM and renames things
accordingly, and removes omap2/3 specific code from OMAP1 specific
headers.

Original OMAP1 decoupling patch for OMAP PM branch by Paul Walmsley.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-05-28 10:59:11 -07:00
Kevin Hilman 8bd2294922 OMAP2/3: PM: push core PM code from linux-omap
This patch is to sync the core linux-omap PM code with mainline.  This
code has evolved and been used for a while the linux-omap tree, but
the attempt here is to finally get this into mainline.

Following this will be a series of patches from the 'PM branch' of the
linux-omap tree to add full PM hardware support from the linux-omap
tree.

Much of this PM core code was written by Jouni Hogander with
significant contributions from Paul Walmsley as well as many others
from Nokia, Texas Instruments and linux-omap community.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-05-28 10:58:50 -07:00
Tony Lindgren ebe3b0e787 ARM: OMAP1: Misc clean-up
Remove unnecessary Kconfig line and allow compile of MBOX_FWK.
Also allow building USB on Nokia 770.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-05-25 11:08:44 -07:00
Paul Walmsley 7971687094 OMAP2xxx clock: rename clk_init_one() to clk_preinit()
Rename clk_init_one() to clk_preinit() to distinguish its function
from clk_init() and the individual struct clk init functions.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-05-12 17:50:30 -06:00
Tony Lindgren 535ff672e3 Merge branch 'omap-clock-fixes' into omap-fixes 2009-04-24 09:56:16 -07:00
Arun KS d53eb73795 OMAP1: clock: Typo fix for clock in omap1
Typo error when requesting for clock for dsp in omap1

Signed-off-by: Arun KS <arunks@mistralsolutions.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-04-23 21:11:07 -06:00
Ladislav Michl bac5b29fb9 ARM: OMAP1: Fix mmc_set_power GPIO usage
Simple simplification...

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-04-23 11:10:48 -07:00
Ladislav Michl 6a3260755f ARM: OMAP1: Simplify board-h2 MMC setup
Simplify board-h2 MMC setup

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-04-23 11:10:47 -07:00
Tony Lindgren ba16ec7cab ARM: OMAP: Remove old dead gpio expander code
This should be done with GPIO calls. Patches against the
mainline tree welcome to add the necessary working functionality
back.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-04-23 11:10:40 -07:00
Magnus Damm 8e19608e8b clocksource: pass clocksource to read() callback
Pass clocksource pointer to the read() callback for clocksources.  This
allows us to share the callback between multiple instances.

[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21 13:41:47 -07:00
Russell King 3ef48fac6e [ARM] omap: fix omap1 clock usecount decrement bug
Same fix as per a7f8c59, but for OMAP1 instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-06 09:57:10 +01:00
Matt LaPlante 692105b8ac trivial: fix typos/grammar errors in Kconfig texts
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30 15:22:01 +02:00
Russell King 8937b7349c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel 2009-03-25 18:31:35 +00:00
Felipe Balbi b0b5aa3f4c ARM: OMAP: get rid of OMAP_TAG_USB, v2
OMAP_TAGS should vanish soon since they're not generic arm tags.
Most of them can be converted to a platform_data or parsed
from a command line like e.g. serial tag.

For OMAP_TAG_USB we just let boards call omap_usb_init()
passing a pointer to omap_usb_config.

Patch updated by Tony for mainline, basically make
n770 and h4 compile. Also folded in a fix for OSK
by David Brownell <dbrownell@users.sourceforge.net>.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:51:20 -07:00
Zebediah C. McClure ed98178319 [OMAP850] Build system changes
Build system changes.

Signed-off-by: Zebediah C. McClure <zmc@lurian.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:51:19 -07:00
Zebediah C. McClure 59185eeeaa [OMAP850] IRQ related changes
IRQ related changes.

Signed-off-by: Zebediah C. McClure <zmc@lurian.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:51:19 -07:00
Zebediah C. McClure 56739a6929 [OMAP850] Changes to base IO subsystem, v2
Changes to base IO subsystem.

Signed-off-by: Zebediah C. McClure <zmc@lurian.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:40 -07:00
Zebediah C. McClure ae302f4006 [OMAP850] Add base support for omap850 cpu
Add base support for omap850 cpu.

Signed-off-by: Zebediah C. McClure <zmc@lurian.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:39 -07:00
Tony Lindgren b2830810fd ARM: OMAP: No need to include board-palm*.h from hardware.h
Move the defines to the associated board file and remove
the now unnecessary header files.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:35 -07:00
Tony Lindgren 3a0110cdae ARM: OMAP: No need to include board-osk.h from hardware.h
Move the defines to the board file and remove the now unnecessary
header file.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:34 -07:00
Tony Lindgren 278267be38 ARM: OMAP: No need to include board-innovator.h from hardware.h
Move the defines to the board file and remove the now unnecessary
header file.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:34 -07:00
Tony Lindgren 228fe42e5e ARM: OMAP: No need to include board-h3.h from hardware.h
Also move board-h3.h to mach-omap1.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:33 -07:00
Tony Lindgren eb6b0b1832 ARM: OMAP: No need to include board-h2.h from hardware.h
Also move board-h2.h to mach-omap1.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:33 -07:00
Tony Lindgren d9558b19f2 ARM: OMAP: No need to include board-perseus2.h or board-fsample.h from hardware.h
Move defines to the board file and remove the now
unnecessary headers.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23 18:07:32 -07:00
Hiroshi DOYU f98d67a07e omap mailbox: fix empty struct device for omap1
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2009-03-23 18:07:25 -07:00
Russell King 8b9dbc16d4 [ARM] omap: arrange for clock recalc methods to return the rate
linux-omap source commit 33d000c99ee393fe2042f93e8422f94976d276ce
introduces a way to "dry run" clock changes before they're committed.
However, this involves putting logic to handle this into each and
every recalc function, and unfortunately due to the caching, led to
some bugs.

Solve both of issues by making the recalc methods always return the
clock rate for the clock, which the caller decides what to do with.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-14 09:59:21 +00:00
Russell King 3f0a820c4c [ARM] omap: create a proper tree of clocks
Traditionally, we've tracked the parent/child relationships between
clk structures by setting the child's parent member to point at the
upstream clock.  As a result, when decending the tree, we have had
to scan all clocks to find the children.

Avoid this wasteful scanning by keeping a list of the clock's children.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:42 +00:00
Tony Lindgren fed415e48f [ARM] omap: Fix omap1 clock issues
This fixes booting, and is a step toward fixing things properly:

- Make enable_reg u32 instead of u16
  [rmk: virtual addresses are void __iomem *, not u32]
- Get rid of VIRTUAL_IO_ADDRESS for clocks
- Use __raw_read/write instead of omap_read/write for clock registers

This patch adds a bunch of compile warnings until omap1 clock
also uses offsets.

linux-omap source commit is 9d1dff8638c9e96a401e1885f9948662e9ff9636.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:37 +00:00
Russell King b1ad379632 [ARM] omap: spi: arrange for omap_uwire to use connection ID
... which now means no driver requests the "armxor_ck" clock directly.
Also, fix the error handling for clk_get(), ensuring that we propagate
the error returned from clk_get().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:21 +00:00
Russell King 5fe2338040 [ARM] omap: i2c: remove conditional ick clocks
By providing a dummy ick for OMAP1510 and OMAP310, we avoid having
SoC conditional clock information in i2c-omap.c.  Also, fix the
error handling by making sure we propagate the error returned via
clk_get().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:20 +00:00
Russell King 1d14de087d [ARM] omap: i2c: use short connection ids
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:19 +00:00
Russell King b820ce4e67 [ARM] omap: mcbsp: convert to use fck/ick clocks directly
Rather than introducing a special 'mcbsp_clk' with code behind it in
mach-omap*/mcbsp.c to handle the SoC specifics, arrange for the mcbsp
driver to be like any other driver.  mcbsp requests its fck and ick
clocks directly, and the SoC specific code deals with selecting the
correct clock.

There is one oddity to deal with - OMAP1 fiddles with the DSP clocks
and DSP reset, so we move this to the two callback functions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:19 +00:00
Russell King d4a36645a1 [ARM] omap: MMC: provide a dummy ick for OMAP1
Eliminate the OMAP1 vs OMAP2 clock knowledge in the MMC driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:17 +00:00
Russell King 5c9e02b1ab [ARM] omap: MMC: convert clocks to match by devid and conid
Convert OMAP MMC driver to match clocks using the device ID and a
connection ID rather than a clock name.  This allows us to eliminate
the OMAP1/OMAP2 differences for the function clock.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:17 +00:00
Russell King 4c5e1946b5 [ARM] omap: watchdog: provide a dummy ick for OMAP1
Eliminate the OMAP1 vs OMAP2 clock knowledge in the watchdog driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:16 +00:00
Russell King 39a80c7f37 [ARM] omap: watchdog: convert clocks to match by devid and conid
This eliminates the need for separate OMAP24xx and OMAP34xx clock
requesting code sections.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:16 +00:00
Russell King f1c2543738 [ARM] omap: provide a dummy clock node
By providing a dummy clock node, we can eliminate the SoC conditional
clock handing in the OMAP drivers, moving this knowledge out of the
driver and into the machine clock support code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:15 +00:00
Russell King d7e8f1f9d6 [ARM] omap: convert OMAP1 to use clkdev
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:13 +00:00
Russell King d5e6072b75 [ARM] omap: handle RATE_CKCTL via .set_rate/.round_rate methods
It makes no sense to have the CKCTL rate selection implemented as a flag
and a special exception in the top level set_rate/round_rate methods.
Provide CKCTL set_rate/round_rate methods, and use these for where ever
RATE_CKCTL is used and they're not already overridden.  This allows us
to remove the RATE_CKCTL flag.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:11 +00:00
Russell King 9a5fedac18 [ARM] omap: move propagate_rate() calls into generic omap clock code
propagate_rate() is recursive, so it makes sense to minimise the
amount of stack which is used for each recursion.  So, rather than
recursing back into it from the ->recalc functions if RATE_PROPAGATES
is set, do that test at the higher level.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:11 +00:00
Russell King a9e8820963 [ARM] omap: remove unnecessary calls to propagate_rate()
We've always called propagate_rate() in the parent function to
the .set_rate methods, so there's no point having the .set_rate
methods also call this heavy-weight function - it's mere
duplication of what's happening elsewhere.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:10 +00:00
Russell King c6af450852 [ARM] omap: move clock propagation into core omap clock code
Move the clock propagation calls for set_parent and set_rate into
the core omap clock code, rather than having these calls scattered
throughout the OMAP1 and OMAP2 implementations.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:10 +00:00
Russell King 897dcded6f [ARM] omap: provide a NULL clock operations structure
... and use it for clocks which are ALWAYS_ENABLED.  These clocks
use a non-NULL enable_reg pointer for other purposes (such as
selecting clock rates.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 11:38:39 +00:00
Russell King 548d849574 [ARM] omap: introduce clock operations structure
Collect up all the common enable/disable clock operation functions
into a separate operations structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-02 14:52:18 +00:00
Russell King db8ac47cfc [ARM] omap: remove VIRTUAL_CLOCK
Nothing tests the clock flags for this bit, so it serves no purpose.
Remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-02 14:49:08 +00:00
Tony Lindgren 0dffb5c57a ARM: OMAP: Fix hsmmc init, v2
The naming accidentally broke while changing the name for the
driver to not to conflict with the other mmc driver.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-29 08:57:16 -08:00
Stanley.Miao 06151158f2 ARM: OMAP: Fix McBSP spin_lock deadlock
A spin_lock deadlock will occur when omap_mcbsp_request() is invoked.

omap_mcbsp_request()
\- clk_enable(mcbsp->clk)         [takes and holds clockfw_lock]
    \- omap2_clk_enable()
       \- _omap2_clk_enable()
           \- omap_mcbsp_clk_enable()
              \- clk_enable(child clock)   [tries for clockfw_lock again]

mcbsp_clk is a virtual clock and it comprises several child clocks. when
enable mcbsp_clk in omap_mcbsp_request(), the enable function of mcbsp_clk
will enable its child clocks, then the deadlock occurs.

The solution is to remove the virtual clock and enable these child clocks in
omap_mcbsp_request() directly.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-29 08:57:12 -08:00