Commit graph

144 commits

Author SHA1 Message Date
Ben Dooks
e856bb1f8d ARM: SAMSUNG: Remove empty gpio-core.h and use central plat/gpio-core.h
Rename mach-s3c2410/include/mach/gpio-core.h to mach/gpio-track.h so that
it can be included by <plat/gpio-core.h> when needed.

Eliminate all other empty gpio-core.h files and just include the
<plat/gpio-core.h> as necessary.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-19 18:46:02 +09:00
Kukjin Kim
1f323cfda5 ARM: SAMSUNG: Move GPIO common functions to plat-samsung
This patch moves GPIO common functions (from plat-s3c64xx) into plat-samsung.
and adds the config option to build the plat-samsung/gpiolib for Samsung SoCs.

Signed-off-by: Adityapratap Sharma <aditya.ps@samsung.com>
Signed-off-by: Atul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-19 18:37:18 +09:00
Ben Dooks
668dfc7527 ARM: Merge next-samsung-devupdates1
Merge branch 'next-samsung-devupdates1' into next-samsung-try7
2010-01-19 18:36:09 +09:00
Ben Dooks
0a6361316d ARM: SAMSUNG: Make UART device code common
Move s3c24xx_uart_devs, s3c24xx_uart_src and the platform devices to a
common entry in plat-samsung since they are the same in all the current
implementations.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-19 09:23:50 +09:00
Jassi Brar
6a2b411164 ARM: S3C64XX: SPI: Define SPI controller devices
Platform devices for SPI Controller of S3C64XX are defined and exported for
machines to include. Also, controller setup helper functions are defined for
machine code to set runtime configuration of the controller and the bus.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 18:27:52 +09:00
Jassi Brar
398ccccb77 ARM: S3C64XX: SPI: Header for passing platform data
We need a way to pass controller specific information to the SPI driver.
For that purpose new headers are made.

SPI Controller is assumed 'type-s3c64xx' and can be defined for newer SoCs.
 Hence, that part is placed under plat-samsung to be shared across newer SoCs.

SoC specific part - spi source clocks, will be placed
under plat-<soc>/include/plat/

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 18:27:15 +09:00
Jassi Brar
87315a802a ARM: S3C64XX: SPI: Define SPI-48M clock sources
Defined special 48MHz clock sources for SPI-0,1.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 17:26:58 +09:00
Andy Green
810f613c03 ARM: S3C64XX: Add virtual mapping for S3C64XX SROM area
This adds the physical address of the SROM unit, and
applies a virtual mapping for it to the S3C_VA_MEM
slot.

Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 11:41:03 +09:00
Andy Green
a7c9194cdc ARM: S3C64XX: Add SROM register definitions
This introduces a platform file for s3c64xx that defines
the SROM unit registers that control chip select
characteristics.

Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 11:41:03 +09:00
Ben Dooks
0084f27a21 ARM: Merge next-s3c64xx
Merge branch 'next-s3c64xx' into next-samsung

Conflicts:
	arch/arm/mach-s3c6400/include/mach/map.h
	( ADC and RTC PA merge fixed)
2010-01-18 09:35:29 +09:00
Maurus Cuelenaere
bcedfa98d9 ARM: S3C64XX: Add S3C64XX support to the generic Samsung ADC driver
Add S3C64XX support to the generic Samsung ADC driver

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 09:30:49 +09:00
Jassi Brar
71269364a8 ARM: S3C64XX: Add I2S resources in platform code
Define resources needed by the I2S drivers in platform code.
Audio cfg_gpio callback and IORESOURCE_DMA are added.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 08:47:21 +09:00
Maurus Cuelenaere
206090913d ARM: S3C64XX: Add S3C64XX RTC platform driver
Add S3C64XX RTC platform driver

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-18 08:47:21 +09:00
Ben Dooks
5b39be4637 ARM: Add common entry code for system with two VICs
Add a common entry-macro-vic2.S for systems where there are two VICs
so that the machine or platform directories just need to setup the
correct information before including <asm/entry-macro-vic2.S> into
their own entry-macro.S file.

Since this code is from the S3C64XX project, we update the S3C64XX
machine entry code to use this new header.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:14 +09:00
Ben Dooks
51022cf659 ARM: SAMSUNG: Move IRQ UART handling for newer devices to plat-samsung
Move the handling for the UART interrupts out of the s3c64xx specific
code and into plat-samsung so that it can be used by all implementations
that need it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:14 +09:00
Ben Dooks
7162ba0372 ARM: SAMSUNG: Move IRQ VIC timer handling out to common header files
Move the VIC based timer interrupt handling out of plat-s3c64xx and
into plat-samsung to be re-used for other systems. This also reduces
the code size as we now have a common init routine and use the irq_desc
to store the interrupt number of the timer.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:13 +09:00
Ben Dooks
1d9f13c49e ARM: SAMSUNG: Add call to register array of clocks
Add s3c_register_clocks() to register an array of clocks, printing
an error message if there is a problem. Replace all points in the code
where this could be used.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:11 +09:00
Ben Dooks
682e2b7d45 ARM: S3C64XX: Avoid announcing clksrc clocks twice
The new code calls the clock setup code on registration which
can be before the clock system has been fully initialised. The
following code re-does this setup at the end of the clock
registration and thus we get two printings.

Update the calls to only print on the last pass or when doing
the necessary resume work.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:10 +09:00
Ben Dooks
f3e0b724cc ARM: S3C64XX: Fixup .reg_src and .reg_div with named initialisers
Change these two fields to have named initialisers as per the
review comments from Kyungmin Park.

sed used:

s@\.reg_src\(.*\)=\(.*\){\(.*\),\(.*\),\(.*\)}@.reg_src\1=\2{ .reg =\3, .shift =\4, .size =\5 }@g
s@\.reg_div\(.*\)=\(.*\){\(.*\),\(.*\),\(.*\)}@.reg_div\1=\2{ .reg =\3, .shift =\4, .size =\5 }@g

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:10 +09:00
Ben Dooks
b3bf41be06 ARM: SAMSUNG: Reduce size of struct clk.
Reduce the size of struct clk by 12 bytes and make defining clocks with
common implementation functions easier by moving the set_rate, get_rate,
round_rate and set_parent calls into a new structure called 'struct clk_ops'
and using that instead.

This change does make a few clocks larger as they need their own clk_ops,
but this is outweighed by the number of clocks with either no ops or having
a common set of ops.

Update all the users of this.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:10 +09:00
Harald Welte
13bbd88504 ARM: S3C64XX: Remove unused clock definitions from clock header
Clean out the definitions we are no longer using after the new clock
code updates.

Signed-off-by: Harald Welte <laforge@gnumonks.org>
[ben-linux@fluff.org: split from initial patch provided]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:09 +09:00
Ben Dooks
399cae7474 ARM: S3C64XX: Use new clock-clksrc.c code for clocks.
Move the s3c6400-clock.c implementation over to use the new common
plat-samsung based clock-clksrc.c.

Note, this does not delete the clocks definitions that are now unused
in the regs-clock.h to reduce the quantity of change in this commit.

Based on original patches by Harald Welte.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:09 +09:00
Ben Dooks
8360493c4a ARM: S3C64XX: Compress s3c6400-clock.c code
The individually named clocks are all static to the code
and thus can be compressed into a single array and then
the array can be referenced. This removes the need for
a seperate array of pointers to clocks.

Fix a minor problem of re-initialising the pointers in
s3c6400_set_clksrc() as this is also called by the cpufreq
code. Move these initialisations to the code that does the
registration.

Based on Harald Welte's original clock changes patch.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:08 +09:00
Ben Dooks
f9c4f1e4dd ARM: S3C64XX: Cleanup common init code in s3c6400-clock.c
Remove the four fields from clksrc_clk.clk which are always the same
and init them when the clock is registered. This helps remove the amount
of repeated code.

This is a re-work of Harald Welte's clock changes for the latest kernel.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-15 17:10:08 +09:00
Ben Dooks
87d26d2d11 ARM: S3C64XX: Fix possible clock look in EPLL and MPLL clock chains
There is a possibility of a loop happening in the PLL output clock
chain on the S3C64XX series. clk_mpll's parent was set to be
clk_mout_mpll, but this is fed from clk_fout_epll (which is also
clk_mpll).

clk_mpll is meant to be the output from the MPLL, and clk_mout_mpll
is a seperate clock derived from the mux of clk_mpll and clk_fin_mpll
and thus should be considered a seperate clock.

Anything using clk_mpll directly really should not be relying on this
being the clock that is eventually routed to a peripheral, so remove the
loop and ensure that the clocks accurately represent the clock chain
in the device.

The clk_mpll is not being used outside of the s3c6400-clock.c code, so
this change should not break anything else.

Do the same for the EPLL.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-01-07 11:34:51 +09:00
Linus Torvalds
4ef58d4e2a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
  tree-wide: fix misspelling of "definition" in comments
  reiserfs: fix misspelling of "journaled"
  doc: Fix a typo in slub.txt.
  inotify: remove superfluous return code check
  hdlc: spelling fix in find_pvc() comment
  doc: fix regulator docs cut-and-pasteism
  mtd: Fix comment in Kconfig
  doc: Fix IRQ chip docs
  tree-wide: fix assorted typos all over the place
  drivers/ata/libata-sff.c: comment spelling fixes
  fix typos/grammos in Documentation/edac.txt
  sysctl: add missing comments
  fs/debugfs/inode.c: fix comment typos
  sgivwfb: Make use of ARRAY_SIZE.
  sky2: fix sky2_link_down copy/paste comment error
  tree-wide: fix typos "couter" -> "counter"
  tree-wide: fix typos "offest" -> "offset"
  fix kerneldoc for set_irq_msi()
  spidev: fix double "of of" in comment
  comment typo fix: sybsystem -> subsystem
  ...
2009-12-09 19:43:33 -08:00
Linus Torvalds
79c9601c2e Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (272 commits)
  Fix soc_common PCMCIA configuration
  ARM: 5827/1: SA1100: h3100/h3600: emit messages on failed gpio_request
  ARM: 5826/1: SA1100: h3100/h3600: always build htc-egpio driver
  ARM: 5825/1: SA1100: h3600: update defconfig
  ARM: 5824/1: SA1100: reuse h3600 PCMCIA driver on h3100
  ARM: 5823/1: SA1100: h3100/h3600: add support for gpio-keys
  ARM: 5822/1: SA1100: h3100/h3600: clean up #includes
  ARM: 5821/1: SA1100: h3100/h3600: revise copyright boilerplates
  ARM: 5820/1: SA1100: h3100/h3600: split h3600.c
  ARM: 5819/1: SA1100: h3100/h3600: merge h3600.h and h3600_gpio.h into h3xxx.h
  ARM: 5818/1: SA1100: h3100/h3600: drop old GPIO definitions
  ARM: 5817/1: SA1100: h3100/h3600: configure all unused gpios as inputs
  ARM: 5816/1: SA1100: h3600: remove IRQ_GPIO_* definitions
  ARM: 5815/1: SA1100: h3100/h3600: remove now unused assign_h3600_egpio handlers
  ARM: 5814/1: SA1100: h3100/h3600: convert all users of assign_h3600_egpio to gpiolib
  ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver
  ARM: 5812/1: SA1100: h3100/h3600: separate machine-specific LCD helpers
  ARM: 5811/2: pcmcia: convert sa1100_h3600 driver to gpiolib
  ARM: 5799/1: SA1100: h3600: stop setting direction for LCD pins
  ARM: 5798/1: SA1100: h3600: remove unused cruft from h3600.h
  ...
2009-12-08 08:12:43 -08:00
Jiri Kosina
d014d04386 Merge branch 'for-next' into for-linus
Conflicts:

	kernel/irq/chip.c
2009-12-07 18:36:35 +01:00
Takashi Iwai
baf9226667 Merge branch 'topic/asoc' into for-linus 2009-12-04 16:22:41 +01:00
Mark Brown
43f0de8d02 S3C64XX: Staticise platform data for PCM devices
The symbols aren't declared and don't need to be exported, they go
along with the device structure.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
2009-12-04 10:46:08 +00:00
Mark Brown
88d27041cf ARM: S3C6410: Correct names of IISv4 data output pin definitions
The naming of the defines suggests that there are three IISv4 ports
with one data line each when in fact there is a single IISv4 port
with three data lines.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-03 21:58:10 +00:00
Maurus Cuelenaere
92b118f696 ARM: S3C64XX: add HSMMC2 support
This adds support for the third SDHCI controller.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01 01:35:41 +00:00
Maurus Cuelenaere
6a88e9838f ARM: S3C64XX: add support for all group 0 external interrupts
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01 01:35:40 +00:00
Maurus Cuelenaere
23196a42a6 ARM: S3C64XX: fix USB OTG compilation
This adds the S3C_VA_USB_HSPHY mapping.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01 01:35:39 +00:00
Mark Brown
e9c08f0d57 ARM: S3C64XX: Redo voltage ranges for cpufreq
The documentation for the S3C6410 CPU voltage scaling is rather
unclear, with omitted values for several speed settings. Originally
the code was using only quoted values, resulting in some fairly odd
settings. The S3C6410 is also unusual in that the both the maximum
and minimum voltages quoted scale as the frequency rises, rather
than just the minimum voltage.

Clean this up a bit by always using the specified typical settings
as the minimum voltage (ignoring any specified minimum voltage) in
order to avoid running near the edge of the processor capabilities.
Also use the next quoted maximum voltages rather than the typical
voltages where no maximum voltage is quoted, allowing operation on
a greater range of systems.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01 01:35:39 +00:00
Mark Brown
43f1069ef9 ARM: S3C64XX: Separate out regulator and frequency latencies
Currently the transition latency reported by the S3C64xx cpufreq
driver includes both the time for the CPU to reclock itself and
the time for a regulator to change voltage. This means that if
a regulator is not in use then the transition latency reported
is excessively high.

In future the regulator API will be extended to report latencies
so the driver will be able to query the performance of a given
regulator.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01 01:35:38 +00:00
Mark Brown
383af9c258 ARM: S3C64XX: Provide logging when CPU frequencies are eliminated due to clocks
This provides symmetry with the voltage based checks done for the
regulator.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01 01:35:38 +00:00
Jassi Brar
acf1aef9ec ARM: S3C64XX: Defined PCM controller platform devices
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-11-18 13:35:05 +00:00
Jassi Brar
336b1a3181 ARM: S3C64XX: DMA: Free node for non-circular queues
We need to free the buff and lli nodes if the buffer queue is
not CIRCULAR.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09 23:51:19 +00:00
Jassi Brar
9b08284bf2 ARM: S3C64XX: DMA: Callback with correct buffer pointer
buffdone callback should be called per buffer request with pointer
to the latest serviced request.
'next' should point to the one next to currently active.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09 23:51:03 +00:00
Jassi Brar
7507f39c57 ARM: S3C64XX: DMA: Make src and dst transfer size same
Some devices don't seem to work if the source and desitnation transfer
widths are not same. For example, SPI dma xfers, with 8bits/word,
don't work without this patch.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09 23:50:42 +00:00
Jassi Brar
6d0b8627d5 ARM: S3C64XX: DMA: Unify callback functions for success/failure
Replace s3c64xx_dma_tcirq and s3c64xx_dma_errirq with the common
s3c64xx_dma_buffdone.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09 23:50:39 +00:00
Jassi Brar
210012a6cd ARM: S3C64XX: DMA: Protect buffer pointers while manipulation
Ensure the DMA buffer points are not updated from
another source during the process of enquing a buffer.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
[ben-linux@fluff.org: Updated patch comment]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09 23:50:39 +00:00
Michael Roth
fa3012318b Kconfig: Remove useless and sometimes wrong comments
Additionally, some excessive newlines removed.

Signed-off-by: Michael Roth <mroth@nessie.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-09 09:40:56 +01:00
Mark Brown
e179ac0f4e ARM: S3C64XX: Set rate of crystal mux
The current code assumes that the external clock mux will be set to
the crystal. Set this up explicitly within the clock API.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-10-26 16:49:46 +00:00
Kukjin Kim
e73486b8c9 ARM: S3C64XX: Fix S3C64XX_CLKDIV0_ARM_MASK value
Fix the values of S3C6400_CLKDIV0_ARM_MASK and S3C6410_CLKDIV0_ARM_MASK.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-10-26 16:49:46 +00:00
Russell King
07198871da Merge branch 'next-s3c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linux 2009-09-18 20:55:56 +01:00
Ben Dooks
01875d56ae Merge branch 'next-s3c64xx-fixes' into next-s3c-fixes 2009-09-17 10:12:48 +01:00
Mark Brown
ebdb5ab81c ARM: S3C64XX: Provide for board-specific IRQs
Set up some IRQ space to allocation to off-SoC interrupt controllers.
Default this to 16 IRQs. If individual boards require more than this
then they will need to modify this file so allocating a small number
helps reduce the number of modifications required.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-17 10:10:46 +01:00
Jassi
b93011e72c ARM: S3C64XX: DMA: Debugged alloc's with GFP_KERNEL flag in Intr context.
s3c2410_dma_enqueue makes call to kzalloc and dma_pool_alloc with GFP_KERNEL
flag set, this can be an issue for drivers, like I2S, which call
s3c2410_dma_enqueue from dma-bufferdone callback.

Change the flag GFP_KERNEL to GFP_ATOMIC to avoid any problems.

Signed-Off-by: Jassi <jassi.brar@samsung.com>
[ben-linux@fluff.org: Minor description edit and re-wrap]

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16 00:50:06 +01:00